Pulmonary Health Hub

It’s likely the United States will see another surge of COVID-19 this winter, warned Christopher Murray, MD, director of the Institute for Health Metrics and Evaluation (IHME) at the University of Washington in Seattle.

Speaking at the national conference of State of Reform on April 8, Dr. Murray cited the seasonality of the SARS-CoV-2 virus, which wanes in the summer and waxes in the winter. The “optimistic forecast” of IHME, which has modeled the course of the pandemic for the past 13 months, is that daily deaths will rise a bit in the next month, then decline from May through August, he said.

“Summer should be fairly quiet in terms of COVID, if vaccinations rise and people don’t stop wearing masks,” Dr. Murray said.

But he added that “a considerable surge will occur over next winter,” because the new variants are more transmissible, and people will likely relax social distancing and mask wearing. The IHME predicts that the percentage of Americans who usually don masks will decline from 73% today to 21% by Aug. 1.

With a rapid decline in mask use and a rise in mobility, there will still be more than 1,000 deaths each day by July 1, Dr. Murray said. In a forecast released the day after Dr. Murray spoke, the IHME predicted that by Aug. 1, there will be a total of 618,523 U.S. deaths from COVID-19. Deaths could be as high as 696,651 if mobility among the vaccinated returns to prepandemic levels, the institute forecasts.

Based on cell phone data, Dr. Murray said, the amount of mobility in the United States has already risen to the level of March 2020, when the pandemic was just getting underway.
 

Decreased infections

If there’s one piece of good news in the latest IHME report, it’s that the estimated number of people infected (including those not tested) will drop from 111,581 today to a projected 17,502 on Aug. 1. But in a worst-case scenario, with sharply higher mobility among vaccinated people, the case count on that date would only fall to 73,842.

The SARS-CoV-2 variants are another factor of concern. Dr. Murray distinguished between variants like the one first identified in the U.K. (B.1.1.7) and other “escape variants.”

B.1.1.7, which is now the dominant strain in the United States, increases transmission but doesn’t necessarily escape the immune system or vaccines, he explained.

In contrast, if someone is infected with a variant such as the South African or the Brazilian mutations, he said, a previous COVID-19 infection might not protect the person, and vaccines are less effective against those variants.

Cross-variant immunity may range from 0% to 60% for escape variants, based on the slim amount of data now available, Dr. Murray said. In his view, these variants will be the long-term driver of the pandemic in the United States, while the United Kingdom variant is the short-term driver.

The latest data, he said, show that the Pfizer/BioNTech and Moderna vaccines are 75% effective against the escape variants, with lower efficacy for other vaccines. But booster shots may still be required to protect people against some variants.
 

Human factors

Human behavior will also help determine the course of the pandemic, he noted. Vaccine hesitancy, for example, is still high in the United States.

By the end of May, he predicted, about 180 million people will have received about two doses of vaccine. After that, he said, “vaccination will flatline due to lack of demand.” The two unknowns are how much campaigns to promote vaccination will increase vaccine confidence, and when children will be vaccinated.

In the United States, he said, 69% of adults have been vaccinated or want to get a shot. But that percentage has dropped 5 points since February, and vaccine confidence varies by state.

Dr. Murray emphasized that the winter surge he predicts can be blocked if people change their behaviors. These include a rise in vaccine confidence to 80% and continued mask wearing by most people.

However, if vaccine confidence and mask wearing decline, state governments continue to drop social distancing rules, and the uptake of boosters is low, the winter surge could be more serious, he said.
 

Double surge

Murray also raised the possibility of a double surge of COVID-19 and influenza this winter. Widely expected last winter, this double surge never materialized here or elsewhere, partly because of mask wearing. But Dr. Murray said it could happen this year: History shows that the flu tends to be stronger in years after weak outbreaks.

He advised hospitals to prepare now for whatever might come later this year. Public health authorities, he said, should speed up vaccination, monitor variants closely with additional sequencing, and try to modify behavior in high-risk groups.

Asked to explain the recent surge of COVID-19 cases in Michigan, Dr. Murray attributed it partly to the spread of the B.1.1.7 (U.K.) variant. But he noted that the U.K. variant has expanded even more widely in some other states that haven’t had an explosive surge like Michigan’s.

Moreover, he noted, Michigan doesn’t have low mask use or high mobility. So the upward spiral of COVID-19 infections there is very concerning, he said.

In regard to the role of children as reservoirs of the virus, Dr. Murray pointed out that views on this have changed around the world. For a while, people thought kids didn’t spread COVID-19 very much. That view shifted when U.K. data showed that child transmission of the B.1.1.7 variant increased by half to 9% of contacts in comparison with the original virus strain.

Dutch data, similarly, showed schools contributing to the latest outbreaks, and some European nations have closed schools. In the United States, the trend is to open them.

A version of this article first appeared on Medscape.com.

It’s likely the United States will see another surge of COVID-19 this winter, warned Christopher Murray, MD, director of the Institute for Health Metrics and Evaluation (IHME) at the University of Washington in Seattle.

Speaking at the national conference of State of Reform on April 8, Dr. Murray cited the seasonality of the SARS-CoV-2 virus, which wanes in the summer and waxes in the winter. The “optimistic forecast” of IHME, which has modeled the course of the pandemic for the past 13 months, is that daily deaths will rise a bit in the next month, then decline from May through August, he said.

“Summer should be fairly quiet in terms of COVID, if vaccinations rise and people don’t stop wearing masks,” Dr. Murray said.

But he added that “a considerable surge will occur over next winter,” because the new variants are more transmissible, and people will likely relax social distancing and mask wearing. The IHME predicts that the percentage of Americans who usually don masks will decline from 73% today to 21% by Aug. 1.

With a rapid decline in mask use and a rise in mobility, there will still be more than 1,000 deaths each day by July 1, Dr. Murray said. In a forecast released the day after Dr. Murray spoke, the IHME predicted that by Aug. 1, there will be a total of 618,523 U.S. deaths from COVID-19. Deaths could be as high as 696,651 if mobility among the vaccinated returns to prepandemic levels, the institute forecasts.

Based on cell phone data, Dr. Murray said, the amount of mobility in the United States has already risen to the level of March 2020, when the pandemic was just getting underway.
 

Decreased infections

If there’s one piece of good news in the latest IHME report, it’s that the estimated number of people infected (including those not tested) will drop from 111,581 today to a projected 17,502 on Aug. 1. But in a worst-case scenario, with sharply higher mobility among vaccinated people, the case count on that date would only fall to 73,842.

The SARS-CoV-2 variants are another factor of concern. Dr. Murray distinguished between variants like the one first identified in the U.K. (B.1.1.7) and other “escape variants.”

B.1.1.7, which is now the dominant strain in the United States, increases transmission but doesn’t necessarily escape the immune system or vaccines, he explained.

In contrast, if someone is infected with a variant such as the South African or the Brazilian mutations, he said, a previous COVID-19 infection might not protect the person, and vaccines are less effective against those variants.

Cross-variant immunity may range from 0% to 60% for escape variants, based on the slim amount of data now available, Dr. Murray said. In his view, these variants will be the long-term driver of the pandemic in the United States, while the United Kingdom variant is the short-term driver.

The latest data, he said, show that the Pfizer/BioNTech and Moderna vaccines are 75% effective against the escape variants, with lower efficacy for other vaccines. But booster shots may still be required to protect people against some variants.
 

Human factors

Human behavior will also help determine the course of the pandemic, he noted. Vaccine hesitancy, for example, is still high in the United States.

By the end of May, he predicted, about 180 million people will have received about two doses of vaccine. After that, he said, “vaccination will flatline due to lack of demand.” The two unknowns are how much campaigns to promote vaccination will increase vaccine confidence, and when children will be vaccinated.

In the United States, he said, 69% of adults have been vaccinated or want to get a shot. But that percentage has dropped 5 points since February, and vaccine confidence varies by state.

Dr. Murray emphasized that the winter surge he predicts can be blocked if people change their behaviors. These include a rise in vaccine confidence to 80% and continued mask wearing by most people.

However, if vaccine confidence and mask wearing decline, state governments continue to drop social distancing rules, and the uptake of boosters is low, the winter surge could be more serious, he said.
 

Double surge

Murray also raised the possibility of a double surge of COVID-19 and influenza this winter. Widely expected last winter, this double surge never materialized here or elsewhere, partly because of mask wearing. But Dr. Murray said it could happen this year: History shows that the flu tends to be stronger in years after weak outbreaks.

He advised hospitals to prepare now for whatever might come later this year. Public health authorities, he said, should speed up vaccination, monitor variants closely with additional sequencing, and try to modify behavior in high-risk groups.

Asked to explain the recent surge of COVID-19 cases in Michigan, Dr. Murray attributed it partly to the spread of the B.1.1.7 (U.K.) variant. But he noted that the U.K. variant has expanded even more widely in some other states that haven’t had an explosive surge like Michigan’s.

Moreover, he noted, Michigan doesn’t have low mask use or high mobility. So the upward spiral of COVID-19 infections there is very concerning, he said.

In regard to the role of children as reservoirs of the virus, Dr. Murray pointed out that views on this have changed around the world. For a while, people thought kids didn’t spread COVID-19 very much. That view shifted when U.K. data showed that child transmission of the B.1.1.7 variant increased by half to 9% of contacts in comparison with the original virus strain.

Dutch data, similarly, showed schools contributing to the latest outbreaks, and some European nations have closed schools. In the United States, the trend is to open them.

A version of this article first appeared on Medscape.com.

It’s likely the United States will see another surge of COVID-19 this winter, warned Christopher Murray, MD, director of the Institute for Health Metrics and Evaluation (IHME) at the University of Washington in Seattle.

Speaking at the national conference of State of Reform on April 8, Dr. Murray cited the seasonality of the SARS-CoV-2 virus, which wanes in the summer and waxes in the winter. The “optimistic forecast” of IHME, which has modeled the course of the pandemic for the past 13 months, is that daily deaths will rise a bit in the next month, then decline from May through August, he said.

“Summer should be fairly quiet in terms of COVID, if vaccinations rise and people don’t stop wearing masks,” Dr. Murray said.

But he added that “a considerable surge will occur over next winter,” because the new variants are more transmissible, and people will likely relax social distancing and mask wearing. The IHME predicts that the percentage of Americans who usually don masks will decline from 73% today to 21% by Aug. 1.

With a rapid decline in mask use and a rise in mobility, there will still be more than 1,000 deaths each day by July 1, Dr. Murray said. In a forecast released the day after Dr. Murray spoke, the IHME predicted that by Aug. 1, there will be a total of 618,523 U.S. deaths from COVID-19. Deaths could be as high as 696,651 if mobility among the vaccinated returns to prepandemic levels, the institute forecasts.

Based on cell phone data, Dr. Murray said, the amount of mobility in the United States has already risen to the level of March 2020, when the pandemic was just getting underway.
 

Decreased infections

If there’s one piece of good news in the latest IHME report, it’s that the estimated number of people infected (including those not tested) will drop from 111,581 today to a projected 17,502 on Aug. 1. But in a worst-case scenario, with sharply higher mobility among vaccinated people, the case count on that date would only fall to 73,842.

The SARS-CoV-2 variants are another factor of concern. Dr. Murray distinguished between variants like the one first identified in the U.K. (B.1.1.7) and other “escape variants.”

B.1.1.7, which is now the dominant strain in the United States, increases transmission but doesn’t necessarily escape the immune system or vaccines, he explained.

In contrast, if someone is infected with a variant such as the South African or the Brazilian mutations, he said, a previous COVID-19 infection might not protect the person, and vaccines are less effective against those variants.

Cross-variant immunity may range from 0% to 60% for escape variants, based on the slim amount of data now available, Dr. Murray said. In his view, these variants will be the long-term driver of the pandemic in the United States, while the United Kingdom variant is the short-term driver.

The latest data, he said, show that the Pfizer/BioNTech and Moderna vaccines are 75% effective against the escape variants, with lower efficacy for other vaccines. But booster shots may still be required to protect people against some variants.
 

Human factors

Human behavior will also help determine the course of the pandemic, he noted. Vaccine hesitancy, for example, is still high in the United States.

By the end of May, he predicted, about 180 million people will have received about two doses of vaccine. After that, he said, “vaccination will flatline due to lack of demand.” The two unknowns are how much campaigns to promote vaccination will increase vaccine confidence, and when children will be vaccinated.

In the United States, he said, 69% of adults have been vaccinated or want to get a shot. But that percentage has dropped 5 points since February, and vaccine confidence varies by state.

Dr. Murray emphasized that the winter surge he predicts can be blocked if people change their behaviors. These include a rise in vaccine confidence to 80% and continued mask wearing by most people.

However, if vaccine confidence and mask wearing decline, state governments continue to drop social distancing rules, and the uptake of boosters is low, the winter surge could be more serious, he said.
 

Double surge

Murray also raised the possibility of a double surge of COVID-19 and influenza this winter. Widely expected last winter, this double surge never materialized here or elsewhere, partly because of mask wearing. But Dr. Murray said it could happen this year: History shows that the flu tends to be stronger in years after weak outbreaks.

He advised hospitals to prepare now for whatever might come later this year. Public health authorities, he said, should speed up vaccination, monitor variants closely with additional sequencing, and try to modify behavior in high-risk groups.

Asked to explain the recent surge of COVID-19 cases in Michigan, Dr. Murray attributed it partly to the spread of the B.1.1.7 (U.K.) variant. But he noted that the U.K. variant has expanded even more widely in some other states that haven’t had an explosive surge like Michigan’s.

Moreover, he noted, Michigan doesn’t have low mask use or high mobility. So the upward spiral of COVID-19 infections there is very concerning, he said.

In regard to the role of children as reservoirs of the virus, Dr. Murray pointed out that views on this have changed around the world. For a while, people thought kids didn’t spread COVID-19 very much. That view shifted when U.K. data showed that child transmission of the B.1.1.7 variant increased by half to 9% of contacts in comparison with the original virus strain.

Dutch data, similarly, showed schools contributing to the latest outbreaks, and some European nations have closed schools. In the United States, the trend is to open them.

A version of this article first appeared on Medscape.com.

A version of this article first appeared on WebMD.com.

This article was updated 4/13/21.

A version of this article first appeared on WebMD.com.

This article was updated 4/13/21.

A version of this article first appeared on WebMD.com.

This article was updated 4/13/21.

Sarcoidosis is a multisystem inflammatory disease of unclear etiology that primarily affects the lungs. It can occur at any age but usually develops before the age of 50 years, with an initial peak incidence at 20 to 29 years and a second peak incidence after 50 years of age, especially among women in Scandinavia and Japan.¹ Sarcoidosis affects men and women of all racial and ethnic groups throughout the world, but differences based on race, sex, and geography are noted.¹

The highest rates are reported in northern European and African-American individuals, particularly in women.^1,2 The adjusted annual incidence of sarcoidosis among African Americans is approximately 3 times that among White Americans³ and is more likely to be chronic and fatal in African Americans.³ The disease can be familial with a possible recessive inheritance mode with incomplete penetrance.⁴ Risk of sarcoidosis in monozygotic twins appears to be 80 times greater than that in the general population, which supports genetic factors accounting for two-thirds of disease susceptibility.⁵

Likely factors in the development of sarcoidosis

The exact cause of sarcoidosis is unknown, but we have insights into its pathogenesis and potential triggers.^1,6-9 Genes involved are being identified: class I and II human leukocyte antigen (HLA) molecules are most consistently associated with risk of sarcoidosis. Environmental exposures can activate the innate immune system and precondition a susceptible individual to react to potential causative antigens in a highly polarized, antigen-specific Th1 immune response. The epithelioid granulomatous response involves local proinflammatory cytokine production and enhanced T-cell immunity at sites of inflammation.¹⁰ Granulomas generally form to confine pathogens, restrict inflammation, and protect surrounding tissue.^11-13

Sarcoidosis is a diagnosis of exclusion; one must rule out infections, occupational or environmental exposures, malignancies, and other disorders that cause granulomatous inflammation.

ACCESS (A Case Control Etiologic Study of Sarcoidosis) identified several environmental exposures such as chemicals used in the agriculture industry, mold or mildew, and musty odors at work.¹⁴ Tobacco use was not associated with sarcoidosis.¹⁴ Recent studies have shown positive associations with service in the US Navy,¹⁵ metal working,¹⁶ firefighting,¹⁷ the handling of building supplies,¹⁸ and onsite exposure while assisting in rescue efforts at the World Trade Center disaster.¹⁹ Other data support the likelihood that specific environmental exposures associated with microbe-rich environments modestly increase the risk of sarcoidosis.¹⁴ Mycobacterial and propionibacterial DNA and RNA are potentially associated with sarcoidosis.²⁰

Clinical manifestations are nonspecific

The diagnosis of sarcoidosis can be difficult and delayed due to diverse organ involvement and nonspecific presentations. TABLE 1^21-31 shows the diverse manifestations in a patient with suspected sarcoidosis. Around 50% of the patients are asymptomatic.^23,24 Sarcoidosis is a diagnosis of exclusion, starting with a detailed history to rule out infections, occupational or environmental exposures, malignancies, and other possible disorders (TABLE 2).²²

Diagnostic work-up

The primary objective of a diagnostic evaluation in most suspected cases of sarcoidosis is to corroborate the clinical and radiologic features with pathologic evidence of non-necrotizing granulomas and to exclude other causes of granulomatous inflammation.²²

Radiologic studies

Chest x-ray (CXR) provides diagnostic and prognostic information in the evaluation of sarcoidosis using the Scadding classification system (FIGURE 1).^21,25,32,33 Interobserver variability, especially between stages II and III and III and IV is the major limitation of this system.³² At presentation, radiographs are abnormal in approximately 90% of patients.³⁴ Lymphadenopathy is the most common radiographic abnormality, occurring in more than two-thirds of cases, and pulmonary opacities (nodules and reticulation) with a middle to upper lobe predilection are present in 20% to 50% of patients.^1,31,35 The nodules vary in size and can coalesce and cause alveolar collapse, thus producing consolidation.³⁶ Linear opacities radiating laterally from the hilum into the middle and upper zones are characteristic in fibrotic disease.

Continue to: High-resoluton computed tomography

High-resolution computed tomography (HRCT). Micronodules in a perilymphatic distribution with upper lobe predominance combined with subcarinal and symmetrical hilar lymph node enlargement is practically diagnostic of sarcoidosis in the right clinical context. TABLE 3^21,23,25,32 and FIGURE 2^21,23,25,32 summarize the common CT chest findings of sarcoidosis.

Advanced imaging such as (18)F-fluorodeoxyglucose positron emission tomography (PET) and magnetic resonance imaging (MRI) are used in specialized settings for advanced pulmonary, cardiac, or neurosarcoidosis.

Tissue biopsy

Skin lesions (other than erythema nodosum), eye lesions, and peripheral lymph nodes are considered the safest extrapulmonary locations for biopsy.^21,25 If pulmonary infiltrates or lymphadenopathy are present, or if extrapulmonary biopsy sites are not available, then flexible bronchoscopy with biopsy is the mainstay for tissue sampling.²⁵

Bronchoalveolar lavage (BAL), transbronchial biopsy (TBB), endobronchial biopsy (EBB), and endobronchial ultrasound (EBUS) are invaluable modalities that have reduced the need for open lung biopsy. BAL in sarcoidosis can show lymphocytosis > 15% (nonspecific) and a CD4:CD8 lymphocyte ratio > 3.5 (specificity > 90%).^21,22 TBB is more sensitive than EBB; however, sensitivity overall is heightened when both of them are combined. The advent of EBUS has increased the safety and efficiency of needle aspiration of mediastinal lymph nodes. Diagnostic yield of EBUS (~80%) is superior to that with TBB and EBB (~50%), especially in stage I and II sarcoidosis.³⁷ The combination of EBUS with TBB improves the diagnostic yield to ~90%.³⁷

The decision to obtain biopsy samples hinges on the nature of clinical and radiologic findings (FIGURE 3).^22,25,26

Continue to: Laboratory studies

Multiple abnormalities may be seen in sarcoidosis, and specific lab tests may help support a diagnosis of sarcoidosis or detect organ-specific disease activity (TABLE 4).^22,23,25,38 However, no consistently accurate biomarkers exist for use in clinical practice. An angiotensin-converting enzyme (ACE) level greater than 2 times the upper limit of normal may be helpful; however, sensitivity remains low, and genetic polymorphisms can influence the ACE level.²⁵ Biomarkers sometimes used to assess disease activity are serum interleukin-2 receptor, neopterin, chitotriosidase, lysozyme, KL-6 glycoprotein, and amyloid A.²¹

Additional tests to assess specific features or organ involvement

Pulmonary function testing (PFT) is reviewed in detail below under “pulmonary sarcoidosis.”

Electrocardiogram (EKG)/transthoracic echocardiogram (TTE). EKG abnormalities—conduction disturbances, arrhythmias, or nonspecific ST segment and T-wave changes—are the most common nonspecific findings.³⁰ TTE findings are also nonspecific but have value in assessing cardiac chamber size and function and myocardial involvement. TTE is indeed the most common screening modality for sarcoidosis-associated pulmonary hypertension (SAPH), which is definitively diagnosed by right heart catheterization (RHC). Further evaluation for cardiac sarcoidosis can be done with cardiac MRI or fluorodeoxyglucose PET in specialized settings.

Lumbar puncture (LP) may reveal lymphocytic infiltration in suspected neurosarcoidosis, but the finding is nonspecific and can reflect infection or malignancy. Oligoclonal bands may also be seen in about one-third of neurosarcoidosis cases, and it is imperative to rule out multiple sclerosis.²⁸

Pulmonary sarcoidosis

Pulmonary sarcoidosis accounts for most of the morbidity, mortality, and health care use associated with sarcoidosis.^39,40

Continue to: Pathology of early and advanced pulmonary sarcoidosis

Pathology of early and advanced pulmonary sarcoidosis

Sarcoidosis is characterized by coalescing, tightly clustered, nonnecrotizing granulomas in the lung (FIGURE 4), most often located along the lymphatic routes of the pleura, interlobular septa, and bronchovascular bundles.⁴¹ Granulomas contain epithelioid cells or multinucleated giant cells surrounded by a chronic lymphocytic infiltrate. Typically, intracytoplasmic inclusions, such as Schaumann bodies, asteroid bodies, and blue bodies of calcium oxalates are noted within giant cells.

In chronic disease, lymphocytic infiltrate vanishes and granulomas tend to become increasingly fibrotic and enlarge to form hyalinized nodules rich with densely eosinophilic collagen. In 10% to 30% of cases, the lungs undergo progressive fibrosis.⁴⁰ Nonresolving inflammation appears to be the major cause of fibrosis and the peribronchovascular localization leading to marked bronchial distortion.

Clinical features, monitoring, and outcomes

Pulmonary involvement occurs in most patients with sarcoidosis, and subclinical pulmonary disease is generally present, even when extrathoracic manifestations predominate.²³ Dry cough, dyspnea, and chest discomfort are the most common symptoms. Chest auscultation is usually unremarkable. Wheezing is more common in those with fibrosis and is attributed to airway-centric fibrosis.⁴² There is often a substantial delay between the onset of symptoms and the diagnosis of pulmonary sarcoidosis, as symptoms are nonspecific and might be mistaken for more common pulmonary diseases, such as asthma or chronic bronchitis.⁴³

Since sarcoidosis can affect pulmonary parenchyma, interstitium, large and small airways, pulmonary vasculature, and respiratory muscles, the pattern of lung function impairment on PFT varies from normal to obstruction, restriction, isolated diffusion defect, or a combination of these. The typical physiologic abnormality is a restrictive ventilatory defect with a decreased diffusing capacity of the lung for carbon monoxide (DLCO). Extent of disease seen on HRCT correlates with level of restriction.⁴⁴ Airway obstruction can be multifactorial and due to airway distortion (more likely to occur in fibrotic lung disease) and luminal disease.^45-48 The 6-minute walk test and DLCO can also aid in the diagnosis of SAPH and advanced parenchymal lung disease.

While monitoring is done clinically and with testing (PFT and imaging) as needed, the optimal approach is unclear. Nevertheless, longitudinal monitoring with testing may provide useful management and prognostic information.⁴⁰ Pulmonary function can remain stable in fibrotic sarcoidosis over extended periods and actually can improve in some patients.⁴⁹ Serial spirometry, particularly forced vital capacity, is the most reliable tool for monitoring; when a decline in measurement occurs, chest radiography can elucidate the mechanism.^50,51

Continue to: Because sarcoidosis is a multisystem disease...

Because sarcoidosis is a multisystem disease, caution needs to be exercised when evaluating a patient’s new or worsening respiratory symptoms to accurately determine the cause of symptoms and direct therapy accordingly. In addition to refractory inflammatory pulmonary disease, airway disease, infection, fibrosis, and SAPH, one needs to consider extrapulmonary involvement or complications such as cardiac or neurologic disease, musculoskeletal disease, depression, or fatigue. Adverse medication effects, deconditioning, or unrelated (or possibly related) disorders (eg pulmonary embolism) may be to blame.

Determining prognosis

Prognosis of sarcoidosis varies and depends on epidemiologic factors, clinical presentation, and course, as well as specific organ involvement. Patients may develop life-threatening pulmonary, cardiac, or neurologic complications. End-stage disease may require organ transplantation for eligible patients.

Most patients with pulmonary sarcoidosis experience clinical remission with minimal residual organ impairment and a favorable long-term outcome. Advanced pulmonary disease (known as APS) occurs in a small proportion of patients with sarcoidosis but accounts for most of the poor outcomes in sarcoidosis.⁴⁰ APS is variably defined, but it generally includes pulmonary fibrosis, SAPH, and respiratory infection.

One percent to 5% of patients with sarcoidosis die from complications, and mortality is higher in women and African Americans.⁵² Mortality and morbidity may be increasing.⁵³ The reasons behind these trends are unclear but could include true increases in disease incidence, better detection rates, greater severity of disease, or an aging population. Increased hospitalizations and health care use might be due to organ damage from granulomatous inflammation (and resultant fibrosis), complications associated with treatment, and psychosocial effects of the disease/treatment.

Management

Management consists primarily of anti-­inflammatory or immunosuppressive therapies but can also include measures to address specific complications (such as fatigue) and organ transplant, as well as efforts to counter adverse medication effects. Other supportive and preventive measures may include, on a case-by-case basis, oxygen supplementation, vaccinations, or pulmonary rehabilitation. Details of these are found in other, more in-depth reviews on treatment; we will briefly review anti-inflammatory therapy, which forms the cornerstone of treatment in most patients with sarcoidosis.

Continue to: General approach to treatment decisions

General approach to treatment decisions. Anti-inflammatory therapy is used to reduce granulomatous inflammation, thereby preserving organ function and reducing symptoms. A decision to begin treatment is one shared with the patient and is based on symptoms and potential danger of organ system failure.⁵⁴ Patients who are symptomatic or have progressive disease or physiologic impairment are generally candidates for treatment. Monitoring usually suffices for those who have minimal symptoms, stable disease, and preserved organ function.

Patients with pulmonary sarcoidosis at CXR stage 0 should not receive treatment, given that large, randomized trials have shown no meaningful benefit and that these patients have a high likelihood of spontaneous remission and excellent long-term prognosis.^55-58 However, a subgroup of patients classified as stage 0/I on CXR may show parenchymal disease on HRCT,⁵⁹ and, if more symptomatic, could be considered for treatment. For patients with stage II to IV pulmonary sarcoidosis with symptoms, there is good evidence that treatment may improve lung function and reduce dyspnea and fatigue.^57,60-62

Corticosteroids are first-line treatment for most patients. Based on expert opinion, treatment of pulmonary sarcoidosis is generally started with oral prednisone (or an equivalent corticosteroid). A starting dose of 20 to 40 mg/d generally is sufficient for most patients. If the patient responds to initial treatment, prednisone dose is tapered over a period of months. If symptoms worsen during tapering, the minimum effective dose is maintained without further attempts at tapering. Treatment is continued for at least 3 to 6 months but it might be needed for longer durations; unfortunately, evidence-based guidelines are lacking.⁶³ Once the patient goes into remission, close monitoring is done for possible relapses. Inhaled corticosteroids alone have not reduced symptoms or improved lung function in patients with pulmonary sarcoidosis.^64-66

Steroid-sparing agents are added for many patients. For patients receiving chronic prednisone therapy (≥ 10 mg for > 6 months), steroid-sparing agents are considered to minimize the adverse effects of steroids or to better control the inflammatory activity of sarcoidosis. These agents must be carefully selected, and clinical and laboratory monitoring need to be done throughout therapy. TABLE 5^58,64,67-81shows the major anti-inflammatory treatment agents used for sarcoidosis.

The management might be complicated for extrapulmonary, multi-organ, and advanced sarcoidosis (advanced pulmonary sarcoidosis, cardiac disease, neurosarcoidosis, lupus pernio, etc) when specialized testing, as well as a combination of corticosteroids and steroid-sparing agents (with higher doses or prolonged courses), might be needed. This should be performed at an expert sarcoidosis center, ideally in a multidisciplinary setting involving pulmonologists and/or rheumatologists, chest radiologists, and specialists as indicated, based on specific organ involvement.

Continue to: Research and future directions

Research and future directions

Key goals for research are identifying more accurate biomarkers of disease, improving diagnosis of multi-organ disease, determining validated endpoints of clinical trials in sarcoidosis, and developing treatments for refractory cases.

There is optimism and opportunity in the field of sarcoidosis overall. An example of an advancement is in the area of APS, as the severity and importance of this phenotype has been better understood. Worldwide registries and trials of pulmonary vasodilator therapy (bosentan, sildenafil, epoprostenol, and inhaled iloprost) in patients with SAPH without left ventricular dysfunction are promising.^82-85 However, no benefit in survival has been shown.

RioSAPH is a double-blind, placebo-controlled trial of Riociguat (a stimulator of soluble guanylate cyclase) for SAPH (NCT02625558) that is closed to enrollment and undergoing data review. Similarly, results of the phase IV study of pirfenidone, an antifibrotic agent that was shown to decrease disease progression and deaths in idiopathic pulmonary fibrosis,⁸⁶ are awaited in the near future.

Other potential directions being explored are multicenter patient registries and randomized controlled trials, analyses of existing databases, use of biobanking, and patient-centered outcome measures. Hopefully, the care of patients with sarcoidosis will become more evidence based with ongoing and upcoming research in this field.

CORRESPONDENCE
Rohit Gupta, MBBS, FCCP, 3401 North Broad Street, 7 Parkinson Pavilion, Philadelphia, PA 19140; [email protected]

Sarcoidosis is a multisystem inflammatory disease of unclear etiology that primarily affects the lungs. It can occur at any age but usually develops before the age of 50 years, with an initial peak incidence at 20 to 29 years and a second peak incidence after 50 years of age, especially among women in Scandinavia and Japan.¹ Sarcoidosis affects men and women of all racial and ethnic groups throughout the world, but differences based on race, sex, and geography are noted.¹

The highest rates are reported in northern European and African-American individuals, particularly in women.^1,2 The adjusted annual incidence of sarcoidosis among African Americans is approximately 3 times that among White Americans³ and is more likely to be chronic and fatal in African Americans.³ The disease can be familial with a possible recessive inheritance mode with incomplete penetrance.⁴ Risk of sarcoidosis in monozygotic twins appears to be 80 times greater than that in the general population, which supports genetic factors accounting for two-thirds of disease susceptibility.⁵

Likely factors in the development of sarcoidosis

The exact cause of sarcoidosis is unknown, but we have insights into its pathogenesis and potential triggers.^1,6-9 Genes involved are being identified: class I and II human leukocyte antigen (HLA) molecules are most consistently associated with risk of sarcoidosis. Environmental exposures can activate the innate immune system and precondition a susceptible individual to react to potential causative antigens in a highly polarized, antigen-specific Th1 immune response. The epithelioid granulomatous response involves local proinflammatory cytokine production and enhanced T-cell immunity at sites of inflammation.¹⁰ Granulomas generally form to confine pathogens, restrict inflammation, and protect surrounding tissue.^11-13

Sarcoidosis is a diagnosis of exclusion; one must rule out infections, occupational or environmental exposures, malignancies, and other disorders that cause granulomatous inflammation.

ACCESS (A Case Control Etiologic Study of Sarcoidosis) identified several environmental exposures such as chemicals used in the agriculture industry, mold or mildew, and musty odors at work.¹⁴ Tobacco use was not associated with sarcoidosis.¹⁴ Recent studies have shown positive associations with service in the US Navy,¹⁵ metal working,¹⁶ firefighting,¹⁷ the handling of building supplies,¹⁸ and onsite exposure while assisting in rescue efforts at the World Trade Center disaster.¹⁹ Other data support the likelihood that specific environmental exposures associated with microbe-rich environments modestly increase the risk of sarcoidosis.¹⁴ Mycobacterial and propionibacterial DNA and RNA are potentially associated with sarcoidosis.²⁰

Clinical manifestations are nonspecific

The diagnosis of sarcoidosis can be difficult and delayed due to diverse organ involvement and nonspecific presentations. TABLE 1^21-31 shows the diverse manifestations in a patient with suspected sarcoidosis. Around 50% of the patients are asymptomatic.^23,24 Sarcoidosis is a diagnosis of exclusion, starting with a detailed history to rule out infections, occupational or environmental exposures, malignancies, and other possible disorders (TABLE 2).²²

Diagnostic work-up

The primary objective of a diagnostic evaluation in most suspected cases of sarcoidosis is to corroborate the clinical and radiologic features with pathologic evidence of non-necrotizing granulomas and to exclude other causes of granulomatous inflammation.²²

Radiologic studies

Chest x-ray (CXR) provides diagnostic and prognostic information in the evaluation of sarcoidosis using the Scadding classification system (FIGURE 1).^21,25,32,33 Interobserver variability, especially between stages II and III and III and IV is the major limitation of this system.³² At presentation, radiographs are abnormal in approximately 90% of patients.³⁴ Lymphadenopathy is the most common radiographic abnormality, occurring in more than two-thirds of cases, and pulmonary opacities (nodules and reticulation) with a middle to upper lobe predilection are present in 20% to 50% of patients.^1,31,35 The nodules vary in size and can coalesce and cause alveolar collapse, thus producing consolidation.³⁶ Linear opacities radiating laterally from the hilum into the middle and upper zones are characteristic in fibrotic disease.

Continue to: High-resoluton computed tomography

High-resolution computed tomography (HRCT). Micronodules in a perilymphatic distribution with upper lobe predominance combined with subcarinal and symmetrical hilar lymph node enlargement is practically diagnostic of sarcoidosis in the right clinical context. TABLE 3^21,23,25,32 and FIGURE 2^21,23,25,32 summarize the common CT chest findings of sarcoidosis.

Advanced imaging such as (18)F-fluorodeoxyglucose positron emission tomography (PET) and magnetic resonance imaging (MRI) are used in specialized settings for advanced pulmonary, cardiac, or neurosarcoidosis.

Tissue biopsy

Skin lesions (other than erythema nodosum), eye lesions, and peripheral lymph nodes are considered the safest extrapulmonary locations for biopsy.^21,25 If pulmonary infiltrates or lymphadenopathy are present, or if extrapulmonary biopsy sites are not available, then flexible bronchoscopy with biopsy is the mainstay for tissue sampling.²⁵

Bronchoalveolar lavage (BAL), transbronchial biopsy (TBB), endobronchial biopsy (EBB), and endobronchial ultrasound (EBUS) are invaluable modalities that have reduced the need for open lung biopsy. BAL in sarcoidosis can show lymphocytosis > 15% (nonspecific) and a CD4:CD8 lymphocyte ratio > 3.5 (specificity > 90%).^21,22 TBB is more sensitive than EBB; however, sensitivity overall is heightened when both of them are combined. The advent of EBUS has increased the safety and efficiency of needle aspiration of mediastinal lymph nodes. Diagnostic yield of EBUS (~80%) is superior to that with TBB and EBB (~50%), especially in stage I and II sarcoidosis.³⁷ The combination of EBUS with TBB improves the diagnostic yield to ~90%.³⁷

The decision to obtain biopsy samples hinges on the nature of clinical and radiologic findings (FIGURE 3).^22,25,26

Continue to: Laboratory studies

Multiple abnormalities may be seen in sarcoidosis, and specific lab tests may help support a diagnosis of sarcoidosis or detect organ-specific disease activity (TABLE 4).^22,23,25,38 However, no consistently accurate biomarkers exist for use in clinical practice. An angiotensin-converting enzyme (ACE) level greater than 2 times the upper limit of normal may be helpful; however, sensitivity remains low, and genetic polymorphisms can influence the ACE level.²⁵ Biomarkers sometimes used to assess disease activity are serum interleukin-2 receptor, neopterin, chitotriosidase, lysozyme, KL-6 glycoprotein, and amyloid A.²¹

Additional tests to assess specific features or organ involvement

Pulmonary function testing (PFT) is reviewed in detail below under “pulmonary sarcoidosis.”

Electrocardiogram (EKG)/transthoracic echocardiogram (TTE). EKG abnormalities—conduction disturbances, arrhythmias, or nonspecific ST segment and T-wave changes—are the most common nonspecific findings.³⁰ TTE findings are also nonspecific but have value in assessing cardiac chamber size and function and myocardial involvement. TTE is indeed the most common screening modality for sarcoidosis-associated pulmonary hypertension (SAPH), which is definitively diagnosed by right heart catheterization (RHC). Further evaluation for cardiac sarcoidosis can be done with cardiac MRI or fluorodeoxyglucose PET in specialized settings.

Lumbar puncture (LP) may reveal lymphocytic infiltration in suspected neurosarcoidosis, but the finding is nonspecific and can reflect infection or malignancy. Oligoclonal bands may also be seen in about one-third of neurosarcoidosis cases, and it is imperative to rule out multiple sclerosis.²⁸

Pulmonary sarcoidosis

Pulmonary sarcoidosis accounts for most of the morbidity, mortality, and health care use associated with sarcoidosis.^39,40

Continue to: Pathology of early and advanced pulmonary sarcoidosis

Pathology of early and advanced pulmonary sarcoidosis

Sarcoidosis is characterized by coalescing, tightly clustered, nonnecrotizing granulomas in the lung (FIGURE 4), most often located along the lymphatic routes of the pleura, interlobular septa, and bronchovascular bundles.⁴¹ Granulomas contain epithelioid cells or multinucleated giant cells surrounded by a chronic lymphocytic infiltrate. Typically, intracytoplasmic inclusions, such as Schaumann bodies, asteroid bodies, and blue bodies of calcium oxalates are noted within giant cells.

In chronic disease, lymphocytic infiltrate vanishes and granulomas tend to become increasingly fibrotic and enlarge to form hyalinized nodules rich with densely eosinophilic collagen. In 10% to 30% of cases, the lungs undergo progressive fibrosis.⁴⁰ Nonresolving inflammation appears to be the major cause of fibrosis and the peribronchovascular localization leading to marked bronchial distortion.

Clinical features, monitoring, and outcomes

Pulmonary involvement occurs in most patients with sarcoidosis, and subclinical pulmonary disease is generally present, even when extrathoracic manifestations predominate.²³ Dry cough, dyspnea, and chest discomfort are the most common symptoms. Chest auscultation is usually unremarkable. Wheezing is more common in those with fibrosis and is attributed to airway-centric fibrosis.⁴² There is often a substantial delay between the onset of symptoms and the diagnosis of pulmonary sarcoidosis, as symptoms are nonspecific and might be mistaken for more common pulmonary diseases, such as asthma or chronic bronchitis.⁴³

Since sarcoidosis can affect pulmonary parenchyma, interstitium, large and small airways, pulmonary vasculature, and respiratory muscles, the pattern of lung function impairment on PFT varies from normal to obstruction, restriction, isolated diffusion defect, or a combination of these. The typical physiologic abnormality is a restrictive ventilatory defect with a decreased diffusing capacity of the lung for carbon monoxide (DLCO). Extent of disease seen on HRCT correlates with level of restriction.⁴⁴ Airway obstruction can be multifactorial and due to airway distortion (more likely to occur in fibrotic lung disease) and luminal disease.^45-48 The 6-minute walk test and DLCO can also aid in the diagnosis of SAPH and advanced parenchymal lung disease.

While monitoring is done clinically and with testing (PFT and imaging) as needed, the optimal approach is unclear. Nevertheless, longitudinal monitoring with testing may provide useful management and prognostic information.⁴⁰ Pulmonary function can remain stable in fibrotic sarcoidosis over extended periods and actually can improve in some patients.⁴⁹ Serial spirometry, particularly forced vital capacity, is the most reliable tool for monitoring; when a decline in measurement occurs, chest radiography can elucidate the mechanism.^50,51

Continue to: Because sarcoidosis is a multisystem disease...

Because sarcoidosis is a multisystem disease, caution needs to be exercised when evaluating a patient’s new or worsening respiratory symptoms to accurately determine the cause of symptoms and direct therapy accordingly. In addition to refractory inflammatory pulmonary disease, airway disease, infection, fibrosis, and SAPH, one needs to consider extrapulmonary involvement or complications such as cardiac or neurologic disease, musculoskeletal disease, depression, or fatigue. Adverse medication effects, deconditioning, or unrelated (or possibly related) disorders (eg pulmonary embolism) may be to blame.

Determining prognosis

Prognosis of sarcoidosis varies and depends on epidemiologic factors, clinical presentation, and course, as well as specific organ involvement. Patients may develop life-threatening pulmonary, cardiac, or neurologic complications. End-stage disease may require organ transplantation for eligible patients.

Most patients with pulmonary sarcoidosis experience clinical remission with minimal residual organ impairment and a favorable long-term outcome. Advanced pulmonary disease (known as APS) occurs in a small proportion of patients with sarcoidosis but accounts for most of the poor outcomes in sarcoidosis.⁴⁰ APS is variably defined, but it generally includes pulmonary fibrosis, SAPH, and respiratory infection.

One percent to 5% of patients with sarcoidosis die from complications, and mortality is higher in women and African Americans.⁵² Mortality and morbidity may be increasing.⁵³ The reasons behind these trends are unclear but could include true increases in disease incidence, better detection rates, greater severity of disease, or an aging population. Increased hospitalizations and health care use might be due to organ damage from granulomatous inflammation (and resultant fibrosis), complications associated with treatment, and psychosocial effects of the disease/treatment.

Management

Management consists primarily of anti-­inflammatory or immunosuppressive therapies but can also include measures to address specific complications (such as fatigue) and organ transplant, as well as efforts to counter adverse medication effects. Other supportive and preventive measures may include, on a case-by-case basis, oxygen supplementation, vaccinations, or pulmonary rehabilitation. Details of these are found in other, more in-depth reviews on treatment; we will briefly review anti-inflammatory therapy, which forms the cornerstone of treatment in most patients with sarcoidosis.

Continue to: General approach to treatment decisions

General approach to treatment decisions. Anti-inflammatory therapy is used to reduce granulomatous inflammation, thereby preserving organ function and reducing symptoms. A decision to begin treatment is one shared with the patient and is based on symptoms and potential danger of organ system failure.⁵⁴ Patients who are symptomatic or have progressive disease or physiologic impairment are generally candidates for treatment. Monitoring usually suffices for those who have minimal symptoms, stable disease, and preserved organ function.

Patients with pulmonary sarcoidosis at CXR stage 0 should not receive treatment, given that large, randomized trials have shown no meaningful benefit and that these patients have a high likelihood of spontaneous remission and excellent long-term prognosis.^55-58 However, a subgroup of patients classified as stage 0/I on CXR may show parenchymal disease on HRCT,⁵⁹ and, if more symptomatic, could be considered for treatment. For patients with stage II to IV pulmonary sarcoidosis with symptoms, there is good evidence that treatment may improve lung function and reduce dyspnea and fatigue.^57,60-62

Corticosteroids are first-line treatment for most patients. Based on expert opinion, treatment of pulmonary sarcoidosis is generally started with oral prednisone (or an equivalent corticosteroid). A starting dose of 20 to 40 mg/d generally is sufficient for most patients. If the patient responds to initial treatment, prednisone dose is tapered over a period of months. If symptoms worsen during tapering, the minimum effective dose is maintained without further attempts at tapering. Treatment is continued for at least 3 to 6 months but it might be needed for longer durations; unfortunately, evidence-based guidelines are lacking.⁶³ Once the patient goes into remission, close monitoring is done for possible relapses. Inhaled corticosteroids alone have not reduced symptoms or improved lung function in patients with pulmonary sarcoidosis.^64-66

Steroid-sparing agents are added for many patients. For patients receiving chronic prednisone therapy (≥ 10 mg for > 6 months), steroid-sparing agents are considered to minimize the adverse effects of steroids or to better control the inflammatory activity of sarcoidosis. These agents must be carefully selected, and clinical and laboratory monitoring need to be done throughout therapy. TABLE 5^58,64,67-81shows the major anti-inflammatory treatment agents used for sarcoidosis.

The management might be complicated for extrapulmonary, multi-organ, and advanced sarcoidosis (advanced pulmonary sarcoidosis, cardiac disease, neurosarcoidosis, lupus pernio, etc) when specialized testing, as well as a combination of corticosteroids and steroid-sparing agents (with higher doses or prolonged courses), might be needed. This should be performed at an expert sarcoidosis center, ideally in a multidisciplinary setting involving pulmonologists and/or rheumatologists, chest radiologists, and specialists as indicated, based on specific organ involvement.

Continue to: Research and future directions

Research and future directions

Key goals for research are identifying more accurate biomarkers of disease, improving diagnosis of multi-organ disease, determining validated endpoints of clinical trials in sarcoidosis, and developing treatments for refractory cases.

There is optimism and opportunity in the field of sarcoidosis overall. An example of an advancement is in the area of APS, as the severity and importance of this phenotype has been better understood. Worldwide registries and trials of pulmonary vasodilator therapy (bosentan, sildenafil, epoprostenol, and inhaled iloprost) in patients with SAPH without left ventricular dysfunction are promising.^82-85 However, no benefit in survival has been shown.

RioSAPH is a double-blind, placebo-controlled trial of Riociguat (a stimulator of soluble guanylate cyclase) for SAPH (NCT02625558) that is closed to enrollment and undergoing data review. Similarly, results of the phase IV study of pirfenidone, an antifibrotic agent that was shown to decrease disease progression and deaths in idiopathic pulmonary fibrosis,⁸⁶ are awaited in the near future.

Other potential directions being explored are multicenter patient registries and randomized controlled trials, analyses of existing databases, use of biobanking, and patient-centered outcome measures. Hopefully, the care of patients with sarcoidosis will become more evidence based with ongoing and upcoming research in this field.

CORRESPONDENCE
Rohit Gupta, MBBS, FCCP, 3401 North Broad Street, 7 Parkinson Pavilion, Philadelphia, PA 19140; [email protected]

Sarcoidosis is a multisystem inflammatory disease of unclear etiology that primarily affects the lungs. It can occur at any age but usually develops before the age of 50 years, with an initial peak incidence at 20 to 29 years and a second peak incidence after 50 years of age, especially among women in Scandinavia and Japan.¹ Sarcoidosis affects men and women of all racial and ethnic groups throughout the world, but differences based on race, sex, and geography are noted.¹

The highest rates are reported in northern European and African-American individuals, particularly in women.^1,2 The adjusted annual incidence of sarcoidosis among African Americans is approximately 3 times that among White Americans³ and is more likely to be chronic and fatal in African Americans.³ The disease can be familial with a possible recessive inheritance mode with incomplete penetrance.⁴ Risk of sarcoidosis in monozygotic twins appears to be 80 times greater than that in the general population, which supports genetic factors accounting for two-thirds of disease susceptibility.⁵

Likely factors in the development of sarcoidosis

The exact cause of sarcoidosis is unknown, but we have insights into its pathogenesis and potential triggers.^1,6-9 Genes involved are being identified: class I and II human leukocyte antigen (HLA) molecules are most consistently associated with risk of sarcoidosis. Environmental exposures can activate the innate immune system and precondition a susceptible individual to react to potential causative antigens in a highly polarized, antigen-specific Th1 immune response. The epithelioid granulomatous response involves local proinflammatory cytokine production and enhanced T-cell immunity at sites of inflammation.¹⁰ Granulomas generally form to confine pathogens, restrict inflammation, and protect surrounding tissue.^11-13

Sarcoidosis is a diagnosis of exclusion; one must rule out infections, occupational or environmental exposures, malignancies, and other disorders that cause granulomatous inflammation.

ACCESS (A Case Control Etiologic Study of Sarcoidosis) identified several environmental exposures such as chemicals used in the agriculture industry, mold or mildew, and musty odors at work.¹⁴ Tobacco use was not associated with sarcoidosis.¹⁴ Recent studies have shown positive associations with service in the US Navy,¹⁵ metal working,¹⁶ firefighting,¹⁷ the handling of building supplies,¹⁸ and onsite exposure while assisting in rescue efforts at the World Trade Center disaster.¹⁹ Other data support the likelihood that specific environmental exposures associated with microbe-rich environments modestly increase the risk of sarcoidosis.¹⁴ Mycobacterial and propionibacterial DNA and RNA are potentially associated with sarcoidosis.²⁰

Clinical manifestations are nonspecific

The diagnosis of sarcoidosis can be difficult and delayed due to diverse organ involvement and nonspecific presentations. TABLE 1^21-31 shows the diverse manifestations in a patient with suspected sarcoidosis. Around 50% of the patients are asymptomatic.^23,24 Sarcoidosis is a diagnosis of exclusion, starting with a detailed history to rule out infections, occupational or environmental exposures, malignancies, and other possible disorders (TABLE 2).²²

Diagnostic work-up

The primary objective of a diagnostic evaluation in most suspected cases of sarcoidosis is to corroborate the clinical and radiologic features with pathologic evidence of non-necrotizing granulomas and to exclude other causes of granulomatous inflammation.²²

Radiologic studies

Chest x-ray (CXR) provides diagnostic and prognostic information in the evaluation of sarcoidosis using the Scadding classification system (FIGURE 1).^21,25,32,33 Interobserver variability, especially between stages II and III and III and IV is the major limitation of this system.³² At presentation, radiographs are abnormal in approximately 90% of patients.³⁴ Lymphadenopathy is the most common radiographic abnormality, occurring in more than two-thirds of cases, and pulmonary opacities (nodules and reticulation) with a middle to upper lobe predilection are present in 20% to 50% of patients.^1,31,35 The nodules vary in size and can coalesce and cause alveolar collapse, thus producing consolidation.³⁶ Linear opacities radiating laterally from the hilum into the middle and upper zones are characteristic in fibrotic disease.

Continue to: High-resoluton computed tomography

High-resolution computed tomography (HRCT). Micronodules in a perilymphatic distribution with upper lobe predominance combined with subcarinal and symmetrical hilar lymph node enlargement is practically diagnostic of sarcoidosis in the right clinical context. TABLE 3^21,23,25,32 and FIGURE 2^21,23,25,32 summarize the common CT chest findings of sarcoidosis.

Advanced imaging such as (18)F-fluorodeoxyglucose positron emission tomography (PET) and magnetic resonance imaging (MRI) are used in specialized settings for advanced pulmonary, cardiac, or neurosarcoidosis.

Tissue biopsy

Skin lesions (other than erythema nodosum), eye lesions, and peripheral lymph nodes are considered the safest extrapulmonary locations for biopsy.^21,25 If pulmonary infiltrates or lymphadenopathy are present, or if extrapulmonary biopsy sites are not available, then flexible bronchoscopy with biopsy is the mainstay for tissue sampling.²⁵

Bronchoalveolar lavage (BAL), transbronchial biopsy (TBB), endobronchial biopsy (EBB), and endobronchial ultrasound (EBUS) are invaluable modalities that have reduced the need for open lung biopsy. BAL in sarcoidosis can show lymphocytosis > 15% (nonspecific) and a CD4:CD8 lymphocyte ratio > 3.5 (specificity > 90%).^21,22 TBB is more sensitive than EBB; however, sensitivity overall is heightened when both of them are combined. The advent of EBUS has increased the safety and efficiency of needle aspiration of mediastinal lymph nodes. Diagnostic yield of EBUS (~80%) is superior to that with TBB and EBB (~50%), especially in stage I and II sarcoidosis.³⁷ The combination of EBUS with TBB improves the diagnostic yield to ~90%.³⁷

The decision to obtain biopsy samples hinges on the nature of clinical and radiologic findings (FIGURE 3).^22,25,26

Continue to: Laboratory studies

Multiple abnormalities may be seen in sarcoidosis, and specific lab tests may help support a diagnosis of sarcoidosis or detect organ-specific disease activity (TABLE 4).^22,23,25,38 However, no consistently accurate biomarkers exist for use in clinical practice. An angiotensin-converting enzyme (ACE) level greater than 2 times the upper limit of normal may be helpful; however, sensitivity remains low, and genetic polymorphisms can influence the ACE level.²⁵ Biomarkers sometimes used to assess disease activity are serum interleukin-2 receptor, neopterin, chitotriosidase, lysozyme, KL-6 glycoprotein, and amyloid A.²¹

Additional tests to assess specific features or organ involvement

Pulmonary function testing (PFT) is reviewed in detail below under “pulmonary sarcoidosis.”

Electrocardiogram (EKG)/transthoracic echocardiogram (TTE). EKG abnormalities—conduction disturbances, arrhythmias, or nonspecific ST segment and T-wave changes—are the most common nonspecific findings.³⁰ TTE findings are also nonspecific but have value in assessing cardiac chamber size and function and myocardial involvement. TTE is indeed the most common screening modality for sarcoidosis-associated pulmonary hypertension (SAPH), which is definitively diagnosed by right heart catheterization (RHC). Further evaluation for cardiac sarcoidosis can be done with cardiac MRI or fluorodeoxyglucose PET in specialized settings.

Lumbar puncture (LP) may reveal lymphocytic infiltration in suspected neurosarcoidosis, but the finding is nonspecific and can reflect infection or malignancy. Oligoclonal bands may also be seen in about one-third of neurosarcoidosis cases, and it is imperative to rule out multiple sclerosis.²⁸

Pulmonary sarcoidosis

Pulmonary sarcoidosis accounts for most of the morbidity, mortality, and health care use associated with sarcoidosis.^39,40

Continue to: Pathology of early and advanced pulmonary sarcoidosis

Pathology of early and advanced pulmonary sarcoidosis

Sarcoidosis is characterized by coalescing, tightly clustered, nonnecrotizing granulomas in the lung (FIGURE 4), most often located along the lymphatic routes of the pleura, interlobular septa, and bronchovascular bundles.⁴¹ Granulomas contain epithelioid cells or multinucleated giant cells surrounded by a chronic lymphocytic infiltrate. Typically, intracytoplasmic inclusions, such as Schaumann bodies, asteroid bodies, and blue bodies of calcium oxalates are noted within giant cells.

In chronic disease, lymphocytic infiltrate vanishes and granulomas tend to become increasingly fibrotic and enlarge to form hyalinized nodules rich with densely eosinophilic collagen. In 10% to 30% of cases, the lungs undergo progressive fibrosis.⁴⁰ Nonresolving inflammation appears to be the major cause of fibrosis and the peribronchovascular localization leading to marked bronchial distortion.

Clinical features, monitoring, and outcomes

Pulmonary involvement occurs in most patients with sarcoidosis, and subclinical pulmonary disease is generally present, even when extrathoracic manifestations predominate.²³ Dry cough, dyspnea, and chest discomfort are the most common symptoms. Chest auscultation is usually unremarkable. Wheezing is more common in those with fibrosis and is attributed to airway-centric fibrosis.⁴² There is often a substantial delay between the onset of symptoms and the diagnosis of pulmonary sarcoidosis, as symptoms are nonspecific and might be mistaken for more common pulmonary diseases, such as asthma or chronic bronchitis.⁴³

Since sarcoidosis can affect pulmonary parenchyma, interstitium, large and small airways, pulmonary vasculature, and respiratory muscles, the pattern of lung function impairment on PFT varies from normal to obstruction, restriction, isolated diffusion defect, or a combination of these. The typical physiologic abnormality is a restrictive ventilatory defect with a decreased diffusing capacity of the lung for carbon monoxide (DLCO). Extent of disease seen on HRCT correlates with level of restriction.⁴⁴ Airway obstruction can be multifactorial and due to airway distortion (more likely to occur in fibrotic lung disease) and luminal disease.^45-48 The 6-minute walk test and DLCO can also aid in the diagnosis of SAPH and advanced parenchymal lung disease.

While monitoring is done clinically and with testing (PFT and imaging) as needed, the optimal approach is unclear. Nevertheless, longitudinal monitoring with testing may provide useful management and prognostic information.⁴⁰ Pulmonary function can remain stable in fibrotic sarcoidosis over extended periods and actually can improve in some patients.⁴⁹ Serial spirometry, particularly forced vital capacity, is the most reliable tool for monitoring; when a decline in measurement occurs, chest radiography can elucidate the mechanism.^50,51

Continue to: Because sarcoidosis is a multisystem disease...

Because sarcoidosis is a multisystem disease, caution needs to be exercised when evaluating a patient’s new or worsening respiratory symptoms to accurately determine the cause of symptoms and direct therapy accordingly. In addition to refractory inflammatory pulmonary disease, airway disease, infection, fibrosis, and SAPH, one needs to consider extrapulmonary involvement or complications such as cardiac or neurologic disease, musculoskeletal disease, depression, or fatigue. Adverse medication effects, deconditioning, or unrelated (or possibly related) disorders (eg pulmonary embolism) may be to blame.

Determining prognosis

Prognosis of sarcoidosis varies and depends on epidemiologic factors, clinical presentation, and course, as well as specific organ involvement. Patients may develop life-threatening pulmonary, cardiac, or neurologic complications. End-stage disease may require organ transplantation for eligible patients.

Most patients with pulmonary sarcoidosis experience clinical remission with minimal residual organ impairment and a favorable long-term outcome. Advanced pulmonary disease (known as APS) occurs in a small proportion of patients with sarcoidosis but accounts for most of the poor outcomes in sarcoidosis.⁴⁰ APS is variably defined, but it generally includes pulmonary fibrosis, SAPH, and respiratory infection.

One percent to 5% of patients with sarcoidosis die from complications, and mortality is higher in women and African Americans.⁵² Mortality and morbidity may be increasing.⁵³ The reasons behind these trends are unclear but could include true increases in disease incidence, better detection rates, greater severity of disease, or an aging population. Increased hospitalizations and health care use might be due to organ damage from granulomatous inflammation (and resultant fibrosis), complications associated with treatment, and psychosocial effects of the disease/treatment.

Management

Management consists primarily of anti-­inflammatory or immunosuppressive therapies but can also include measures to address specific complications (such as fatigue) and organ transplant, as well as efforts to counter adverse medication effects. Other supportive and preventive measures may include, on a case-by-case basis, oxygen supplementation, vaccinations, or pulmonary rehabilitation. Details of these are found in other, more in-depth reviews on treatment; we will briefly review anti-inflammatory therapy, which forms the cornerstone of treatment in most patients with sarcoidosis.

Continue to: General approach to treatment decisions

General approach to treatment decisions. Anti-inflammatory therapy is used to reduce granulomatous inflammation, thereby preserving organ function and reducing symptoms. A decision to begin treatment is one shared with the patient and is based on symptoms and potential danger of organ system failure.⁵⁴ Patients who are symptomatic or have progressive disease or physiologic impairment are generally candidates for treatment. Monitoring usually suffices for those who have minimal symptoms, stable disease, and preserved organ function.

Patients with pulmonary sarcoidosis at CXR stage 0 should not receive treatment, given that large, randomized trials have shown no meaningful benefit and that these patients have a high likelihood of spontaneous remission and excellent long-term prognosis.^55-58 However, a subgroup of patients classified as stage 0/I on CXR may show parenchymal disease on HRCT,⁵⁹ and, if more symptomatic, could be considered for treatment. For patients with stage II to IV pulmonary sarcoidosis with symptoms, there is good evidence that treatment may improve lung function and reduce dyspnea and fatigue.^57,60-62

Corticosteroids are first-line treatment for most patients. Based on expert opinion, treatment of pulmonary sarcoidosis is generally started with oral prednisone (or an equivalent corticosteroid). A starting dose of 20 to 40 mg/d generally is sufficient for most patients. If the patient responds to initial treatment, prednisone dose is tapered over a period of months. If symptoms worsen during tapering, the minimum effective dose is maintained without further attempts at tapering. Treatment is continued for at least 3 to 6 months but it might be needed for longer durations; unfortunately, evidence-based guidelines are lacking.⁶³ Once the patient goes into remission, close monitoring is done for possible relapses. Inhaled corticosteroids alone have not reduced symptoms or improved lung function in patients with pulmonary sarcoidosis.^64-66

Steroid-sparing agents are added for many patients. For patients receiving chronic prednisone therapy (≥ 10 mg for > 6 months), steroid-sparing agents are considered to minimize the adverse effects of steroids or to better control the inflammatory activity of sarcoidosis. These agents must be carefully selected, and clinical and laboratory monitoring need to be done throughout therapy. TABLE 5^58,64,67-81shows the major anti-inflammatory treatment agents used for sarcoidosis.

The management might be complicated for extrapulmonary, multi-organ, and advanced sarcoidosis (advanced pulmonary sarcoidosis, cardiac disease, neurosarcoidosis, lupus pernio, etc) when specialized testing, as well as a combination of corticosteroids and steroid-sparing agents (with higher doses or prolonged courses), might be needed. This should be performed at an expert sarcoidosis center, ideally in a multidisciplinary setting involving pulmonologists and/or rheumatologists, chest radiologists, and specialists as indicated, based on specific organ involvement.

Continue to: Research and future directions

Research and future directions

Key goals for research are identifying more accurate biomarkers of disease, improving diagnosis of multi-organ disease, determining validated endpoints of clinical trials in sarcoidosis, and developing treatments for refractory cases.

There is optimism and opportunity in the field of sarcoidosis overall. An example of an advancement is in the area of APS, as the severity and importance of this phenotype has been better understood. Worldwide registries and trials of pulmonary vasodilator therapy (bosentan, sildenafil, epoprostenol, and inhaled iloprost) in patients with SAPH without left ventricular dysfunction are promising.^82-85 However, no benefit in survival has been shown.

RioSAPH is a double-blind, placebo-controlled trial of Riociguat (a stimulator of soluble guanylate cyclase) for SAPH (NCT02625558) that is closed to enrollment and undergoing data review. Similarly, results of the phase IV study of pirfenidone, an antifibrotic agent that was shown to decrease disease progression and deaths in idiopathic pulmonary fibrosis,⁸⁶ are awaited in the near future.

Other potential directions being explored are multicenter patient registries and randomized controlled trials, analyses of existing databases, use of biobanking, and patient-centered outcome measures. Hopefully, the care of patients with sarcoidosis will become more evidence based with ongoing and upcoming research in this field.

CORRESPONDENCE
Rohit Gupta, MBBS, FCCP, 3401 North Broad Street, 7 Parkinson Pavilion, Philadelphia, PA 19140; [email protected]

Loss of smell, loss of taste, dyspnea, and fatigue are the four most common symptoms that health care professionals in Sweden report 8 months after mild COVID-19 illness, new evidence reveals.

Approximately 1 in 10 health care workers experience one or more moderate to severe symptoms that negatively affect their quality of life, according to the study.

Nenad Cavoski/Getty Images

“We see that a substantial portion of health care workers suffer from long-term symptoms after mild COVID-19,” senior author Charlotte Thålin, MD, PhD, said in an interview. She added that loss of smell and taste “may seem trivial, but have a negative impact on work, social, and home life in the long run.”

The study is noteworthy not only for tracking the COVID-19-related experiences of health care workers over time, but also for what it did not find. There was no increased prevalence of cognitive issues – including memory or concentration – that others have linked to what’s often called long-haul COVID-19.

The research letter was published online April 7, 2021, in JAMA.

“Even if you are young and previously healthy, a mild COVID-19 infection may result in long-term consequences,” said Dr. Thålin, from the department of clinical sciences at Danderyd Hospital, Karolinska Institute, Stockholm.

The researchers did not observe an increased risk for long-term symptoms after asymptomatic COVID-19.
 

Adding to existing evidence

This research letter “adds to the growing body of literature showing that people recovering from COVID have reported a diverse array of symptoms lasting for months after initial infection,” Lekshmi Santhosh, MD, said in an interview. She is physician faculty lead at the University of California, San Francisco Post-COVID OPTIMAL Clinic.

Previous research revealed severe long-term symptoms, including heart palpitations and neurologic impairments, among people hospitalized with COVID-19. However, “there is limited data on the long-term effects after mild COVID-19, and these studies are often hampered by selection bias and without proper control groups,” Dr. Thålin said.

The absence of these more severe symptoms after mild COVID-19 is “reassuring,” she added.

The current findings are part of the ongoing COMMUNITY (COVID-19 Biomarker and Immunity) study looking at long-term immunity. Health care professionals enrolled in the research between April 15 and May 8, 2020, and have initial blood tests repeated every 4 months.

Dr. Thålin, lead author Sebastian Havervall, MD, and their colleagues compared symptom reporting between 323 hospital employees who had mild COVID-19 at least 8 months earlier with 1,072 employees who did not have COVID-19 throughout the study.

The results show that 26% of those who had COVID-19 previously had at least one moderate to severe symptom that lasted more than 2 months, compared with 9% in the control group.

The group with a history of mild COVID-19 was a median 43 years old and 83% were women. The controls were a median 47 years old and 86% were women.

“These data mirror what we have seen across long-term cohorts of patients with COVID-19 infection. Notably, mild illness among previously healthy individuals may be associated with long-term persistent symptoms,” Sarah Jolley, MD, a pulmonologist specializing in critical care at the University of Colorado Hospital in Aurora and director of the Post-COVID Clinic, said in an interview.

“In this cohort, similar to others, this seems to be more pronounced in women,” Dr. Jolley added.
 

Key findings on functioning

At 8 months, using a smartphone app, participants reported presence, duration, and severity of 23 predefined symptoms. Researchers used the Sheehan Disability Scale to gauge functional impairment.

A total of 11% participants reported at least one symptom that negatively affected work or social or home life at 8 months versus only 2% of the control group.

Seropositive participants were almost two times more likely to report that their long-term symptoms moderately to markedly disrupted their work life, 8% versus 4% of seronegative healthcare workers (relative risk, 1.8; 95%; confidence interval, 1.2-2.9).

Disruptions to a social life from long-term symptoms were 2.5 times more likely in the seropositive group. A total 15% of this cohort reported moderate to marked effects, compared with 6% of the seronegative group (RR, 2.5; 95% CI, 1.8-3.6).

The researchers also inquired about home life disruptions, which were reported by 12% of the seropositive health care workers and 5% of the seronegative participants (RR, 2.3; 95% CI, 1.6-3.4).

The study’s findings “tracks with a lot of the other work we’re seeing,” David Putrino, PT, PhD, director of rehabilitation innovation at Mount Sinai Health System in New York, said in an interview. He and his colleagues are responsible for managing the rehabilitation of patients with long COVID.

Interestingly, the proportion of people with persistent symptoms might be underestimated in this research, Dr. Putrino said. “Antibodies are not an entirely reliable biomarker. So what the researchers are using here is the most conservative measure of who may have had the virus.”

Potential recall bias and the subjective rating of symptoms were possible limitations of the study.

When asked to speculate why researchers did not find higher levels of cognitive dysfunction, Dr. Putrino said that self-reports are generally less reliable than measures like the Montreal Cognitive Assessment for detecting cognitive impairment.

Furthermore, unlike many of the people with long-haul COVID-19 whom he treats clinically – ones who are “really struggling” – the health care workers studied in Sweden are functioning well enough to perform their duties at the hospital, so the study population may not represent the population at large.
 

More research required

“More research needs to be conducted to investigate the mechanisms underlying these persistent symptoms, and several centers, including UCSF, are conducting research into why this might be,” Dr. Santhosh said.

Dr. Thålin and colleagues plan to continue following participants. “The primary aim of the COMMUNITY study is to investigate long-term immunity after COVID-19, but we will also look into possible underlying pathophysiological mechanisms behind COVID-19–related long-term symptoms,” she said.

“I hope to see that taste and smell will return,” Dr. Thålin added.

“We’re really just starting to understand the long-term effects of COVID-19,” Putrino said. “This is something we’re going to see a lot of moving forward.”

Dr. Thålin, Dr. Santhosh, Dr. Jolley, and Dr. Putrino disclosed no relevant financial relationships. The research was funded by grants from the Knut and Alice Wallenberg Foundation, Jonas and Christina af Jochnick Foundation, Leif Lundblad Family Foundation, Region Stockholm, and Erling-Persson Family Foundation.

A version of this article first appeared on Medscape.com.

Loss of smell, loss of taste, dyspnea, and fatigue are the four most common symptoms that health care professionals in Sweden report 8 months after mild COVID-19 illness, new evidence reveals.

Approximately 1 in 10 health care workers experience one or more moderate to severe symptoms that negatively affect their quality of life, according to the study.

Nenad Cavoski/Getty Images

“We see that a substantial portion of health care workers suffer from long-term symptoms after mild COVID-19,” senior author Charlotte Thålin, MD, PhD, said in an interview. She added that loss of smell and taste “may seem trivial, but have a negative impact on work, social, and home life in the long run.”

The study is noteworthy not only for tracking the COVID-19-related experiences of health care workers over time, but also for what it did not find. There was no increased prevalence of cognitive issues – including memory or concentration – that others have linked to what’s often called long-haul COVID-19.

The research letter was published online April 7, 2021, in JAMA.

“Even if you are young and previously healthy, a mild COVID-19 infection may result in long-term consequences,” said Dr. Thålin, from the department of clinical sciences at Danderyd Hospital, Karolinska Institute, Stockholm.

The researchers did not observe an increased risk for long-term symptoms after asymptomatic COVID-19.
 

Adding to existing evidence

This research letter “adds to the growing body of literature showing that people recovering from COVID have reported a diverse array of symptoms lasting for months after initial infection,” Lekshmi Santhosh, MD, said in an interview. She is physician faculty lead at the University of California, San Francisco Post-COVID OPTIMAL Clinic.

Previous research revealed severe long-term symptoms, including heart palpitations and neurologic impairments, among people hospitalized with COVID-19. However, “there is limited data on the long-term effects after mild COVID-19, and these studies are often hampered by selection bias and without proper control groups,” Dr. Thålin said.

The absence of these more severe symptoms after mild COVID-19 is “reassuring,” she added.

The current findings are part of the ongoing COMMUNITY (COVID-19 Biomarker and Immunity) study looking at long-term immunity. Health care professionals enrolled in the research between April 15 and May 8, 2020, and have initial blood tests repeated every 4 months.

Dr. Thålin, lead author Sebastian Havervall, MD, and their colleagues compared symptom reporting between 323 hospital employees who had mild COVID-19 at least 8 months earlier with 1,072 employees who did not have COVID-19 throughout the study.

The results show that 26% of those who had COVID-19 previously had at least one moderate to severe symptom that lasted more than 2 months, compared with 9% in the control group.

The group with a history of mild COVID-19 was a median 43 years old and 83% were women. The controls were a median 47 years old and 86% were women.

“These data mirror what we have seen across long-term cohorts of patients with COVID-19 infection. Notably, mild illness among previously healthy individuals may be associated with long-term persistent symptoms,” Sarah Jolley, MD, a pulmonologist specializing in critical care at the University of Colorado Hospital in Aurora and director of the Post-COVID Clinic, said in an interview.

“In this cohort, similar to others, this seems to be more pronounced in women,” Dr. Jolley added.
 

Key findings on functioning

At 8 months, using a smartphone app, participants reported presence, duration, and severity of 23 predefined symptoms. Researchers used the Sheehan Disability Scale to gauge functional impairment.

A total of 11% participants reported at least one symptom that negatively affected work or social or home life at 8 months versus only 2% of the control group.

Seropositive participants were almost two times more likely to report that their long-term symptoms moderately to markedly disrupted their work life, 8% versus 4% of seronegative healthcare workers (relative risk, 1.8; 95%; confidence interval, 1.2-2.9).

Disruptions to a social life from long-term symptoms were 2.5 times more likely in the seropositive group. A total 15% of this cohort reported moderate to marked effects, compared with 6% of the seronegative group (RR, 2.5; 95% CI, 1.8-3.6).

The researchers also inquired about home life disruptions, which were reported by 12% of the seropositive health care workers and 5% of the seronegative participants (RR, 2.3; 95% CI, 1.6-3.4).

The study’s findings “tracks with a lot of the other work we’re seeing,” David Putrino, PT, PhD, director of rehabilitation innovation at Mount Sinai Health System in New York, said in an interview. He and his colleagues are responsible for managing the rehabilitation of patients with long COVID.

Interestingly, the proportion of people with persistent symptoms might be underestimated in this research, Dr. Putrino said. “Antibodies are not an entirely reliable biomarker. So what the researchers are using here is the most conservative measure of who may have had the virus.”

Potential recall bias and the subjective rating of symptoms were possible limitations of the study.

When asked to speculate why researchers did not find higher levels of cognitive dysfunction, Dr. Putrino said that self-reports are generally less reliable than measures like the Montreal Cognitive Assessment for detecting cognitive impairment.

Furthermore, unlike many of the people with long-haul COVID-19 whom he treats clinically – ones who are “really struggling” – the health care workers studied in Sweden are functioning well enough to perform their duties at the hospital, so the study population may not represent the population at large.
 

More research required

“More research needs to be conducted to investigate the mechanisms underlying these persistent symptoms, and several centers, including UCSF, are conducting research into why this might be,” Dr. Santhosh said.

Dr. Thålin and colleagues plan to continue following participants. “The primary aim of the COMMUNITY study is to investigate long-term immunity after COVID-19, but we will also look into possible underlying pathophysiological mechanisms behind COVID-19–related long-term symptoms,” she said.

“I hope to see that taste and smell will return,” Dr. Thålin added.

“We’re really just starting to understand the long-term effects of COVID-19,” Putrino said. “This is something we’re going to see a lot of moving forward.”

Dr. Thålin, Dr. Santhosh, Dr. Jolley, and Dr. Putrino disclosed no relevant financial relationships. The research was funded by grants from the Knut and Alice Wallenberg Foundation, Jonas and Christina af Jochnick Foundation, Leif Lundblad Family Foundation, Region Stockholm, and Erling-Persson Family Foundation.

A version of this article first appeared on Medscape.com.

Loss of smell, loss of taste, dyspnea, and fatigue are the four most common symptoms that health care professionals in Sweden report 8 months after mild COVID-19 illness, new evidence reveals.

Approximately 1 in 10 health care workers experience one or more moderate to severe symptoms that negatively affect their quality of life, according to the study.

Nenad Cavoski/Getty Images

“We see that a substantial portion of health care workers suffer from long-term symptoms after mild COVID-19,” senior author Charlotte Thålin, MD, PhD, said in an interview. She added that loss of smell and taste “may seem trivial, but have a negative impact on work, social, and home life in the long run.”

The study is noteworthy not only for tracking the COVID-19-related experiences of health care workers over time, but also for what it did not find. There was no increased prevalence of cognitive issues – including memory or concentration – that others have linked to what’s often called long-haul COVID-19.

The research letter was published online April 7, 2021, in JAMA.

“Even if you are young and previously healthy, a mild COVID-19 infection may result in long-term consequences,” said Dr. Thålin, from the department of clinical sciences at Danderyd Hospital, Karolinska Institute, Stockholm.

The researchers did not observe an increased risk for long-term symptoms after asymptomatic COVID-19.
 

Adding to existing evidence

This research letter “adds to the growing body of literature showing that people recovering from COVID have reported a diverse array of symptoms lasting for months after initial infection,” Lekshmi Santhosh, MD, said in an interview. She is physician faculty lead at the University of California, San Francisco Post-COVID OPTIMAL Clinic.

Previous research revealed severe long-term symptoms, including heart palpitations and neurologic impairments, among people hospitalized with COVID-19. However, “there is limited data on the long-term effects after mild COVID-19, and these studies are often hampered by selection bias and without proper control groups,” Dr. Thålin said.

The absence of these more severe symptoms after mild COVID-19 is “reassuring,” she added.

The current findings are part of the ongoing COMMUNITY (COVID-19 Biomarker and Immunity) study looking at long-term immunity. Health care professionals enrolled in the research between April 15 and May 8, 2020, and have initial blood tests repeated every 4 months.

Dr. Thålin, lead author Sebastian Havervall, MD, and their colleagues compared symptom reporting between 323 hospital employees who had mild COVID-19 at least 8 months earlier with 1,072 employees who did not have COVID-19 throughout the study.

The results show that 26% of those who had COVID-19 previously had at least one moderate to severe symptom that lasted more than 2 months, compared with 9% in the control group.

The group with a history of mild COVID-19 was a median 43 years old and 83% were women. The controls were a median 47 years old and 86% were women.

“These data mirror what we have seen across long-term cohorts of patients with COVID-19 infection. Notably, mild illness among previously healthy individuals may be associated with long-term persistent symptoms,” Sarah Jolley, MD, a pulmonologist specializing in critical care at the University of Colorado Hospital in Aurora and director of the Post-COVID Clinic, said in an interview.

“In this cohort, similar to others, this seems to be more pronounced in women,” Dr. Jolley added.
 

Key findings on functioning

At 8 months, using a smartphone app, participants reported presence, duration, and severity of 23 predefined symptoms. Researchers used the Sheehan Disability Scale to gauge functional impairment.

A total of 11% participants reported at least one symptom that negatively affected work or social or home life at 8 months versus only 2% of the control group.

Seropositive participants were almost two times more likely to report that their long-term symptoms moderately to markedly disrupted their work life, 8% versus 4% of seronegative healthcare workers (relative risk, 1.8; 95%; confidence interval, 1.2-2.9).

Disruptions to a social life from long-term symptoms were 2.5 times more likely in the seropositive group. A total 15% of this cohort reported moderate to marked effects, compared with 6% of the seronegative group (RR, 2.5; 95% CI, 1.8-3.6).

The researchers also inquired about home life disruptions, which were reported by 12% of the seropositive health care workers and 5% of the seronegative participants (RR, 2.3; 95% CI, 1.6-3.4).

The study’s findings “tracks with a lot of the other work we’re seeing,” David Putrino, PT, PhD, director of rehabilitation innovation at Mount Sinai Health System in New York, said in an interview. He and his colleagues are responsible for managing the rehabilitation of patients with long COVID.

Interestingly, the proportion of people with persistent symptoms might be underestimated in this research, Dr. Putrino said. “Antibodies are not an entirely reliable biomarker. So what the researchers are using here is the most conservative measure of who may have had the virus.”

Potential recall bias and the subjective rating of symptoms were possible limitations of the study.

When asked to speculate why researchers did not find higher levels of cognitive dysfunction, Dr. Putrino said that self-reports are generally less reliable than measures like the Montreal Cognitive Assessment for detecting cognitive impairment.

Furthermore, unlike many of the people with long-haul COVID-19 whom he treats clinically – ones who are “really struggling” – the health care workers studied in Sweden are functioning well enough to perform their duties at the hospital, so the study population may not represent the population at large.
 

More research required

“More research needs to be conducted to investigate the mechanisms underlying these persistent symptoms, and several centers, including UCSF, are conducting research into why this might be,” Dr. Santhosh said.

Dr. Thålin and colleagues plan to continue following participants. “The primary aim of the COMMUNITY study is to investigate long-term immunity after COVID-19, but we will also look into possible underlying pathophysiological mechanisms behind COVID-19–related long-term symptoms,” she said.

“I hope to see that taste and smell will return,” Dr. Thålin added.

“We’re really just starting to understand the long-term effects of COVID-19,” Putrino said. “This is something we’re going to see a lot of moving forward.”

Dr. Thålin, Dr. Santhosh, Dr. Jolley, and Dr. Putrino disclosed no relevant financial relationships. The research was funded by grants from the Knut and Alice Wallenberg Foundation, Jonas and Christina af Jochnick Foundation, Leif Lundblad Family Foundation, Region Stockholm, and Erling-Persson Family Foundation.

A version of this article first appeared on Medscape.com.

Each afternoon, Cyrus Shahpar, MD, the data guru for the White House COVID-19 Response Team, sends an email to staffers with the daily count of COVID-19 vaccinations delivered in the United States.

The numbers, collected from states ahead of the final figures being posted on the Centers for Disease Control and Prevention website, act as a report card of sorts on the team’s efforts.

On Saturday, April 3, it was a new record: 4.1 million vaccinations delivered in a single day, more than the total population of some states.

While the United States has a long way to go before it is done with COVID-19, there’s finally some good news in the nation’s long and blundering slog through the pandemic.

After a rocky start in December 2020 and January 2021, vaccination is happening faster than nearly anyone thought possible. As more people see their friends and family roll up their sleeves, hesitancy is dropping, too.

In settings where large numbers of people are vaccinated, such as nursing homes, COVID-19 cases and deaths have plunged.

Those gains, however, haven’t been shared equally. According to CDC data, 69% of people who are fully vaccinated are White, while just 8% are Black and about 9% are Hispanic, a group that now represents most new COVID-19 cases. 

Officials say that’s partly because the vaccines were rolled out to the elderly first. The average life expectancy for Black people in the United States is now age 72, which means there were fewer people of color represented in the first groups to become eligible. Experts are hopeful that underrepresented groups will start to catch up as more states open up vaccinations to younger people.

Based on overall numbers of daily vaccine doses, the United States ranks third, behind China and India. America ranks fourth – behind Israel, the United Kingdom, and Chile – in the total share of the population that’s been vaccinated, according to the website Our World in Data.
 

A positive development

It’s a stunning turnaround for a country that failed for months to develop effective tests, and still struggles in some quarters to investigate new cases and quarantine their contacts.

The 7-day rolling average of vaccines administered in the United States is currently more than 3 million a day.

“We knew that we needed to get to 3 million a day at some point, if we were going to get most people vaccinated this year, but I don’t think that most people expected it to happen this early,” said Eric Toner, MD, a senior scholar with the Johns Hopkins Center for Health Security in Baltimore.

Before taking office, President Joe Biden pledged to get 100 million shots in arms within his first 100 days in office. After hitting that goal in late March, he doubled it, to 200 million vaccinations by April 30. After first saying all adults should be eligible to get in line for the vaccine by May 1, on April 6, he bumped up that date to April 19. 

Some media reports have seen this repeated moving of the goalposts as calculated – an unstated strategy of underpromising and overdelivering with the aim of rebuilding public trust.

But others pointed out that, even if that’s true, the goals being set aren’t easy, and hitting them has never been a given.

“I think the Biden administration really gets a lot of credit for pushing the companies to get more vaccine out faster than they had planned to,” Dr. Toner said. “And the states have really responded as well as the federal government in terms of getting vaccination sites going. So we’re not only getting the vaccines, we’re getting it into people’s arms faster than expected.”

Others agree.

“We’re doing an amazing job, and I think the U.S. is really beginning to bend the curve,” said Carlos del Rio, MD, an infectious disease specialist and distinguished professor of medicine at Emory University, Atlanta.

“I think overall it’s just that everybody’s putting in a ton of work to get it done,” he said.

On April 3, the day the United States hit its vaccination record, he was volunteering to give vaccinations.

“I mean, of all the bad things we do to people as clinicians, this is one thing that people are very happy about, right?” Dr. del Rio said.

He said he vaccinated a young woman who asked if she could video chat with her mom, who was feeling nervous about getting the shot. He answered her mom’s questions, and later that day, she came down to be vaccinated herself.
 

‘We view it as a war’

The White House COVID-19 Response Team has worked hard to better coordinate the work of so many people at both the federal and state levels, Andy Slavitt, senior adviser for the team, said in an interview.

“We view it as a war, and in a war, you do everything: You bring experienced personnel; you bring all the resources to bear; you create multiple routes,” Mr. Slavitt said. “You don’t leave anything to chance.”

Among the levers the administration has pulled, using the Defense Production Act has helped vaccine manufacturers get needed supplies, Mr. Slavitt said.

The administration has set up an array of Federal Emergency Management Agency–run community vaccination centers and mobile vaccination sites to complement state-led efforts, and it’s activated a federal health law called the Public Readiness and Emergency Preparedness Act, which provides immunity from liability for retired doctors and nurses, among others, who sign up to help give vaccinations. That’s helped get more people into the field giving shots. 

The administration also canceled a plan to allocate vaccines to states based on their pace of administration, which would have punished underperforming states. Instead, doses are allocated based on population. 

In a media call on April 7, when asked whether the administration would send additional vaccines to Michigan, a state that’s seeing a surge of COVID-19 cases with more transmissible variants, Mr. Slavitt said they weren’t managing vaccine supply “according to some formula.”

He said they were distributing based on population “because that’s fundamental,” but were also locating vaccines “surgically in places that have had the greatest disease and where people have the greatest exposure.”

He said sites like community health centers and retail pharmacies have the power to order vaccines directly from the federal government, which helps get more supply to harder-hit areas.

Mr. Slavitt said hitting 4.1 million daily vaccinations on April 3 was gratifying.

“I’ve seen photographs ... of people breaking down in tears when they get their vaccine, people who are giving standing ovations to active military for taking care of them,” he said, “and I think about people who have gone for a long time without hope, or who have been very scared.

“It’s incredibly encouraging to think about maybe a few million people taking a step back to normal life again,” he said.

A version of this article first appeared on Medscape.com.

Each afternoon, Cyrus Shahpar, MD, the data guru for the White House COVID-19 Response Team, sends an email to staffers with the daily count of COVID-19 vaccinations delivered in the United States.

The numbers, collected from states ahead of the final figures being posted on the Centers for Disease Control and Prevention website, act as a report card of sorts on the team’s efforts.

On Saturday, April 3, it was a new record: 4.1 million vaccinations delivered in a single day, more than the total population of some states.

While the United States has a long way to go before it is done with COVID-19, there’s finally some good news in the nation’s long and blundering slog through the pandemic.

After a rocky start in December 2020 and January 2021, vaccination is happening faster than nearly anyone thought possible. As more people see their friends and family roll up their sleeves, hesitancy is dropping, too.

In settings where large numbers of people are vaccinated, such as nursing homes, COVID-19 cases and deaths have plunged.

Those gains, however, haven’t been shared equally. According to CDC data, 69% of people who are fully vaccinated are White, while just 8% are Black and about 9% are Hispanic, a group that now represents most new COVID-19 cases. 

Officials say that’s partly because the vaccines were rolled out to the elderly first. The average life expectancy for Black people in the United States is now age 72, which means there were fewer people of color represented in the first groups to become eligible. Experts are hopeful that underrepresented groups will start to catch up as more states open up vaccinations to younger people.

Based on overall numbers of daily vaccine doses, the United States ranks third, behind China and India. America ranks fourth – behind Israel, the United Kingdom, and Chile – in the total share of the population that’s been vaccinated, according to the website Our World in Data.
 

A positive development

It’s a stunning turnaround for a country that failed for months to develop effective tests, and still struggles in some quarters to investigate new cases and quarantine their contacts.

The 7-day rolling average of vaccines administered in the United States is currently more than 3 million a day.

“We knew that we needed to get to 3 million a day at some point, if we were going to get most people vaccinated this year, but I don’t think that most people expected it to happen this early,” said Eric Toner, MD, a senior scholar with the Johns Hopkins Center for Health Security in Baltimore.

Before taking office, President Joe Biden pledged to get 100 million shots in arms within his first 100 days in office. After hitting that goal in late March, he doubled it, to 200 million vaccinations by April 30. After first saying all adults should be eligible to get in line for the vaccine by May 1, on April 6, he bumped up that date to April 19. 

Some media reports have seen this repeated moving of the goalposts as calculated – an unstated strategy of underpromising and overdelivering with the aim of rebuilding public trust.

But others pointed out that, even if that’s true, the goals being set aren’t easy, and hitting them has never been a given.

“I think the Biden administration really gets a lot of credit for pushing the companies to get more vaccine out faster than they had planned to,” Dr. Toner said. “And the states have really responded as well as the federal government in terms of getting vaccination sites going. So we’re not only getting the vaccines, we’re getting it into people’s arms faster than expected.”

Others agree.

“We’re doing an amazing job, and I think the U.S. is really beginning to bend the curve,” said Carlos del Rio, MD, an infectious disease specialist and distinguished professor of medicine at Emory University, Atlanta.

“I think overall it’s just that everybody’s putting in a ton of work to get it done,” he said.

On April 3, the day the United States hit its vaccination record, he was volunteering to give vaccinations.

“I mean, of all the bad things we do to people as clinicians, this is one thing that people are very happy about, right?” Dr. del Rio said.

He said he vaccinated a young woman who asked if she could video chat with her mom, who was feeling nervous about getting the shot. He answered her mom’s questions, and later that day, she came down to be vaccinated herself.
 

‘We view it as a war’

The White House COVID-19 Response Team has worked hard to better coordinate the work of so many people at both the federal and state levels, Andy Slavitt, senior adviser for the team, said in an interview.

“We view it as a war, and in a war, you do everything: You bring experienced personnel; you bring all the resources to bear; you create multiple routes,” Mr. Slavitt said. “You don’t leave anything to chance.”

Among the levers the administration has pulled, using the Defense Production Act has helped vaccine manufacturers get needed supplies, Mr. Slavitt said.

The administration has set up an array of Federal Emergency Management Agency–run community vaccination centers and mobile vaccination sites to complement state-led efforts, and it’s activated a federal health law called the Public Readiness and Emergency Preparedness Act, which provides immunity from liability for retired doctors and nurses, among others, who sign up to help give vaccinations. That’s helped get more people into the field giving shots. 

The administration also canceled a plan to allocate vaccines to states based on their pace of administration, which would have punished underperforming states. Instead, doses are allocated based on population. 

In a media call on April 7, when asked whether the administration would send additional vaccines to Michigan, a state that’s seeing a surge of COVID-19 cases with more transmissible variants, Mr. Slavitt said they weren’t managing vaccine supply “according to some formula.”

He said they were distributing based on population “because that’s fundamental,” but were also locating vaccines “surgically in places that have had the greatest disease and where people have the greatest exposure.”

He said sites like community health centers and retail pharmacies have the power to order vaccines directly from the federal government, which helps get more supply to harder-hit areas.

Mr. Slavitt said hitting 4.1 million daily vaccinations on April 3 was gratifying.

“I’ve seen photographs ... of people breaking down in tears when they get their vaccine, people who are giving standing ovations to active military for taking care of them,” he said, “and I think about people who have gone for a long time without hope, or who have been very scared.

“It’s incredibly encouraging to think about maybe a few million people taking a step back to normal life again,” he said.

A version of this article first appeared on Medscape.com.

Each afternoon, Cyrus Shahpar, MD, the data guru for the White House COVID-19 Response Team, sends an email to staffers with the daily count of COVID-19 vaccinations delivered in the United States.

The numbers, collected from states ahead of the final figures being posted on the Centers for Disease Control and Prevention website, act as a report card of sorts on the team’s efforts.

On Saturday, April 3, it was a new record: 4.1 million vaccinations delivered in a single day, more than the total population of some states.

While the United States has a long way to go before it is done with COVID-19, there’s finally some good news in the nation’s long and blundering slog through the pandemic.

After a rocky start in December 2020 and January 2021, vaccination is happening faster than nearly anyone thought possible. As more people see their friends and family roll up their sleeves, hesitancy is dropping, too.

In settings where large numbers of people are vaccinated, such as nursing homes, COVID-19 cases and deaths have plunged.

Those gains, however, haven’t been shared equally. According to CDC data, 69% of people who are fully vaccinated are White, while just 8% are Black and about 9% are Hispanic, a group that now represents most new COVID-19 cases. 

Officials say that’s partly because the vaccines were rolled out to the elderly first. The average life expectancy for Black people in the United States is now age 72, which means there were fewer people of color represented in the first groups to become eligible. Experts are hopeful that underrepresented groups will start to catch up as more states open up vaccinations to younger people.

Based on overall numbers of daily vaccine doses, the United States ranks third, behind China and India. America ranks fourth – behind Israel, the United Kingdom, and Chile – in the total share of the population that’s been vaccinated, according to the website Our World in Data.
 

A positive development

It’s a stunning turnaround for a country that failed for months to develop effective tests, and still struggles in some quarters to investigate new cases and quarantine their contacts.

The 7-day rolling average of vaccines administered in the United States is currently more than 3 million a day.

“We knew that we needed to get to 3 million a day at some point, if we were going to get most people vaccinated this year, but I don’t think that most people expected it to happen this early,” said Eric Toner, MD, a senior scholar with the Johns Hopkins Center for Health Security in Baltimore.

Before taking office, President Joe Biden pledged to get 100 million shots in arms within his first 100 days in office. After hitting that goal in late March, he doubled it, to 200 million vaccinations by April 30. After first saying all adults should be eligible to get in line for the vaccine by May 1, on April 6, he bumped up that date to April 19. 

Some media reports have seen this repeated moving of the goalposts as calculated – an unstated strategy of underpromising and overdelivering with the aim of rebuilding public trust.

But others pointed out that, even if that’s true, the goals being set aren’t easy, and hitting them has never been a given.

“I think the Biden administration really gets a lot of credit for pushing the companies to get more vaccine out faster than they had planned to,” Dr. Toner said. “And the states have really responded as well as the federal government in terms of getting vaccination sites going. So we’re not only getting the vaccines, we’re getting it into people’s arms faster than expected.”

Others agree.

“We’re doing an amazing job, and I think the U.S. is really beginning to bend the curve,” said Carlos del Rio, MD, an infectious disease specialist and distinguished professor of medicine at Emory University, Atlanta.

“I think overall it’s just that everybody’s putting in a ton of work to get it done,” he said.

On April 3, the day the United States hit its vaccination record, he was volunteering to give vaccinations.

“I mean, of all the bad things we do to people as clinicians, this is one thing that people are very happy about, right?” Dr. del Rio said.

He said he vaccinated a young woman who asked if she could video chat with her mom, who was feeling nervous about getting the shot. He answered her mom’s questions, and later that day, she came down to be vaccinated herself.
 

‘We view it as a war’

The White House COVID-19 Response Team has worked hard to better coordinate the work of so many people at both the federal and state levels, Andy Slavitt, senior adviser for the team, said in an interview.

“We view it as a war, and in a war, you do everything: You bring experienced personnel; you bring all the resources to bear; you create multiple routes,” Mr. Slavitt said. “You don’t leave anything to chance.”

Among the levers the administration has pulled, using the Defense Production Act has helped vaccine manufacturers get needed supplies, Mr. Slavitt said.

The administration has set up an array of Federal Emergency Management Agency–run community vaccination centers and mobile vaccination sites to complement state-led efforts, and it’s activated a federal health law called the Public Readiness and Emergency Preparedness Act, which provides immunity from liability for retired doctors and nurses, among others, who sign up to help give vaccinations. That’s helped get more people into the field giving shots. 

The administration also canceled a plan to allocate vaccines to states based on their pace of administration, which would have punished underperforming states. Instead, doses are allocated based on population. 

In a media call on April 7, when asked whether the administration would send additional vaccines to Michigan, a state that’s seeing a surge of COVID-19 cases with more transmissible variants, Mr. Slavitt said they weren’t managing vaccine supply “according to some formula.”

He said they were distributing based on population “because that’s fundamental,” but were also locating vaccines “surgically in places that have had the greatest disease and where people have the greatest exposure.”

He said sites like community health centers and retail pharmacies have the power to order vaccines directly from the federal government, which helps get more supply to harder-hit areas.

Mr. Slavitt said hitting 4.1 million daily vaccinations on April 3 was gratifying.

“I’ve seen photographs ... of people breaking down in tears when they get their vaccine, people who are giving standing ovations to active military for taking care of them,” he said, “and I think about people who have gone for a long time without hope, or who have been very scared.

“It’s incredibly encouraging to think about maybe a few million people taking a step back to normal life again,” he said.

A version of this article first appeared on Medscape.com.

THE CASE

A 37-year-old man with a history of asthma, schizoaffective disorder, and tobacco use (36 packs per year) presented to the clinic after 5 days of worsening cough, reproducible left-sided chest pain, and increasing shortness of breath. He also experienced chills, fatigue, nausea, and vomiting but was afebrile. The patient had not travelled recently nor had direct contact with anyone sick. He also denied intravenous (IV) drug use, alcohol use, and bloody sputum. Recently, he had intentionally lost weight, as recommended by his psychiatrist.

Medication review revealed that he was taking many central-acting agents for schizoaffective disorder, including alprazolam, aripiprazole, desvenlafaxine, and quetiapine. Due to his intermittent asthma since childhood, he used an albuterol inhaler as needed, which currently offered only minimal relief. He denied any history of hospitalization or intubation for asthma.

During the clinic visit, his blood pressure was 90/60 mm Hg and his heart rate was normal. His pulse oximetry was 92% on room air. On physical examination, he had normal-appearing dentition. Auscultation revealed bilateral expiratory wheezes with decreased breath sounds at the left lower lobe.

A plain chest radiograph (CXR) performed in the clinic (FIGURE 1) showed a large, thick-walled cavitary lesion with an air-fluid level in the left lower lobe. The patient was directly admitted to the Family Medicine Inpatient Service. Computed tomography (CT) of the chest with contrast was ordered to rule out empyema or malignancy. The chest CT confirmed the previous findings while also revealing a surrounding satellite nodularity in the left lower lobe (FIGURE 2). QuantiFERON-TB Gold and HIV tests were both negative.

THE DIAGNOSIS

The patient was given a diagnosis of a lung abscess based on symptoms and imaging. An extensive smoking history, as well as multiple sedating medications, increased his likelihood of aspiration.

DISCUSSION

Lung abscess is the probable diagnosis in a patient with indolent infectious symptoms (cough, fever, night sweats) developing over days to weeks and a CXR finding of pulmonary opacity, often with an air-fluid level.^1-4 A lung abscess is a circumscribed collection of pus in the lung parenchyma that develops as a result of microbial infection.⁴

Primary vs secondary abscess. Lung abscesses can be divided into 2 groups: primary and secondary abscesses. Primary abscesses (60%) occur without any other medical condition or in patients prone to aspiration.⁵ Secondary abscesses occur in the setting of a comorbid medical condition, such as lung disease, heart disease, bronchogenic neoplasm, or immunocompromised status.⁵

Continue to: With a primary lung abscess...

With a primary lung abscess, oropharyngeal contents are aspirated (generally while the patient is unconscious) and contain mixed flora.² The aspirate typically migrates to the posterior segments of the upper lobes and to the superior segments of the lower lobes. These abscesses are usually singular and have an air-fluid level.^1,2

Secondary lung abscesses occur in bronchial obstruction (by tumor, foreign body, or enlarged lymph nodes), with coexisting lung diseases (bronchiectasis, cystic fibrosis, infected pulmonary infarcts, lung contusion) or by direct spread (broncho-esophageal fistula, subphrenic abscess).⁶ Secondary abscesses are associated with a poorer prognosis, dependent on the patient’s general condition and underlying disease.⁷

What to rule out

The differential diagnosis of cavitary lung lesion includes tuberculosis, necrotizing pneumonia, bronchial carcinoma, pulmonary embolism, vasculitis (eg, Churg-Strauss syndrome), and localized pleural empyema.^1,4 A CT scan is helpful to differentiate between a parenchymal lesion and pleural collection, which may not be as clear on CXR.^1,4

Tuberculosis manifests with fatigue, weight loss, and night sweats; a chest CT will reveal a cavitating lesion (usually upper lobe) with a characteristic “rim sign” that includes caseous necrosis surrounded by a peripheral enhancing rim.⁸

Necrotizing pneumonia manifests as acute, fulminant infection. The most common causative organisms on sputum culture are Streptococcus pneumoniae, Staphylococcus aureus, Klebsiella pneumoniae, and Pseudomonas species. Plain radiography will reveal multiple cavities and often associated pleural effusion and empyema.⁹

Continue to: Excavating bronchogenic carcinomas

Excavating bronchogenic carcinomas differ from a lung abscess in that a patient with the latter is typically, but not always, febrile and has purulent sputum. On imaging, a bronchogenic carcinoma has a thicker and more irregular wall than a lung abscess.¹⁰

Treatment

When antibiotics first became available, penicillin was used to treat lung abscess.¹¹ Then IV clindamycin became the drug of choice after 2 trials demonstrated its superiority to IV penicillin.^12,13 More recently, clindamycin alone has fallen out of favor due to growing anaerobic resistance.¹⁴

Current therapy includes beta-lactam with beta-lactamase inhibitors.¹⁴ Lung abscesses are typically polymicrobial and thus carry different degrees of antibiotic resistance.^15,16 If culture data are available, targeted therapy is preferred, especially for secondary abscesses.⁷ Antibiotic therapy is usually continued until a CXR reveals a small lesion or is clear, which may require several months of outpatient oral antibiotic therapy.⁴

Our patient was treated with IV clindamycin for 3 days in the hospital. Clindamycin was chosen due to his penicillin allergy and started empirically without any culture data. He was transitioned to oral clindamycin and completed a total 3-week course as his CXR continued to show improvement (FIGURE 3). He did not undergo bronchoscopy. A follow-up CXR showed resolution of lung abscess at 9 months. (FIGURE 4).

THE TAKEAWAY

All patients with lung abscesses should have sputum culture with gram stain done—­ideally prior to starting antibiotics.^3,4 Bronchoscopy should be considered for patients with atypical presentations or those who fail standard therapy, but may be used in other cases, as well.³

CORRESPONDENCE
Morteza Khodaee, MD, MPH, AFW Clinic, 3055 Roslyn Street, Denver, CO 80238; [email protected]

THE CASE

A 37-year-old man with a history of asthma, schizoaffective disorder, and tobacco use (36 packs per year) presented to the clinic after 5 days of worsening cough, reproducible left-sided chest pain, and increasing shortness of breath. He also experienced chills, fatigue, nausea, and vomiting but was afebrile. The patient had not travelled recently nor had direct contact with anyone sick. He also denied intravenous (IV) drug use, alcohol use, and bloody sputum. Recently, he had intentionally lost weight, as recommended by his psychiatrist.

Medication review revealed that he was taking many central-acting agents for schizoaffective disorder, including alprazolam, aripiprazole, desvenlafaxine, and quetiapine. Due to his intermittent asthma since childhood, he used an albuterol inhaler as needed, which currently offered only minimal relief. He denied any history of hospitalization or intubation for asthma.

During the clinic visit, his blood pressure was 90/60 mm Hg and his heart rate was normal. His pulse oximetry was 92% on room air. On physical examination, he had normal-appearing dentition. Auscultation revealed bilateral expiratory wheezes with decreased breath sounds at the left lower lobe.

A plain chest radiograph (CXR) performed in the clinic (FIGURE 1) showed a large, thick-walled cavitary lesion with an air-fluid level in the left lower lobe. The patient was directly admitted to the Family Medicine Inpatient Service. Computed tomography (CT) of the chest with contrast was ordered to rule out empyema or malignancy. The chest CT confirmed the previous findings while also revealing a surrounding satellite nodularity in the left lower lobe (FIGURE 2). QuantiFERON-TB Gold and HIV tests were both negative.

THE DIAGNOSIS

The patient was given a diagnosis of a lung abscess based on symptoms and imaging. An extensive smoking history, as well as multiple sedating medications, increased his likelihood of aspiration.

DISCUSSION

Lung abscess is the probable diagnosis in a patient with indolent infectious symptoms (cough, fever, night sweats) developing over days to weeks and a CXR finding of pulmonary opacity, often with an air-fluid level.^1-4 A lung abscess is a circumscribed collection of pus in the lung parenchyma that develops as a result of microbial infection.⁴

Primary vs secondary abscess. Lung abscesses can be divided into 2 groups: primary and secondary abscesses. Primary abscesses (60%) occur without any other medical condition or in patients prone to aspiration.⁵ Secondary abscesses occur in the setting of a comorbid medical condition, such as lung disease, heart disease, bronchogenic neoplasm, or immunocompromised status.⁵

Continue to: With a primary lung abscess...

With a primary lung abscess, oropharyngeal contents are aspirated (generally while the patient is unconscious) and contain mixed flora.² The aspirate typically migrates to the posterior segments of the upper lobes and to the superior segments of the lower lobes. These abscesses are usually singular and have an air-fluid level.^1,2

Secondary lung abscesses occur in bronchial obstruction (by tumor, foreign body, or enlarged lymph nodes), with coexisting lung diseases (bronchiectasis, cystic fibrosis, infected pulmonary infarcts, lung contusion) or by direct spread (broncho-esophageal fistula, subphrenic abscess).⁶ Secondary abscesses are associated with a poorer prognosis, dependent on the patient’s general condition and underlying disease.⁷

What to rule out

The differential diagnosis of cavitary lung lesion includes tuberculosis, necrotizing pneumonia, bronchial carcinoma, pulmonary embolism, vasculitis (eg, Churg-Strauss syndrome), and localized pleural empyema.^1,4 A CT scan is helpful to differentiate between a parenchymal lesion and pleural collection, which may not be as clear on CXR.^1,4

Tuberculosis manifests with fatigue, weight loss, and night sweats; a chest CT will reveal a cavitating lesion (usually upper lobe) with a characteristic “rim sign” that includes caseous necrosis surrounded by a peripheral enhancing rim.⁸

Necrotizing pneumonia manifests as acute, fulminant infection. The most common causative organisms on sputum culture are Streptococcus pneumoniae, Staphylococcus aureus, Klebsiella pneumoniae, and Pseudomonas species. Plain radiography will reveal multiple cavities and often associated pleural effusion and empyema.⁹

Continue to: Excavating bronchogenic carcinomas

Excavating bronchogenic carcinomas differ from a lung abscess in that a patient with the latter is typically, but not always, febrile and has purulent sputum. On imaging, a bronchogenic carcinoma has a thicker and more irregular wall than a lung abscess.¹⁰

Treatment

When antibiotics first became available, penicillin was used to treat lung abscess.¹¹ Then IV clindamycin became the drug of choice after 2 trials demonstrated its superiority to IV penicillin.^12,13 More recently, clindamycin alone has fallen out of favor due to growing anaerobic resistance.¹⁴

Current therapy includes beta-lactam with beta-lactamase inhibitors.¹⁴ Lung abscesses are typically polymicrobial and thus carry different degrees of antibiotic resistance.^15,16 If culture data are available, targeted therapy is preferred, especially for secondary abscesses.⁷ Antibiotic therapy is usually continued until a CXR reveals a small lesion or is clear, which may require several months of outpatient oral antibiotic therapy.⁴

Our patient was treated with IV clindamycin for 3 days in the hospital. Clindamycin was chosen due to his penicillin allergy and started empirically without any culture data. He was transitioned to oral clindamycin and completed a total 3-week course as his CXR continued to show improvement (FIGURE 3). He did not undergo bronchoscopy. A follow-up CXR showed resolution of lung abscess at 9 months. (FIGURE 4).

THE TAKEAWAY

All patients with lung abscesses should have sputum culture with gram stain done—­ideally prior to starting antibiotics.^3,4 Bronchoscopy should be considered for patients with atypical presentations or those who fail standard therapy, but may be used in other cases, as well.³

CORRESPONDENCE
Morteza Khodaee, MD, MPH, AFW Clinic, 3055 Roslyn Street, Denver, CO 80238; [email protected]

THE CASE

A 37-year-old man with a history of asthma, schizoaffective disorder, and tobacco use (36 packs per year) presented to the clinic after 5 days of worsening cough, reproducible left-sided chest pain, and increasing shortness of breath. He also experienced chills, fatigue, nausea, and vomiting but was afebrile. The patient had not travelled recently nor had direct contact with anyone sick. He also denied intravenous (IV) drug use, alcohol use, and bloody sputum. Recently, he had intentionally lost weight, as recommended by his psychiatrist.

Medication review revealed that he was taking many central-acting agents for schizoaffective disorder, including alprazolam, aripiprazole, desvenlafaxine, and quetiapine. Due to his intermittent asthma since childhood, he used an albuterol inhaler as needed, which currently offered only minimal relief. He denied any history of hospitalization or intubation for asthma.

During the clinic visit, his blood pressure was 90/60 mm Hg and his heart rate was normal. His pulse oximetry was 92% on room air. On physical examination, he had normal-appearing dentition. Auscultation revealed bilateral expiratory wheezes with decreased breath sounds at the left lower lobe.

A plain chest radiograph (CXR) performed in the clinic (FIGURE 1) showed a large, thick-walled cavitary lesion with an air-fluid level in the left lower lobe. The patient was directly admitted to the Family Medicine Inpatient Service. Computed tomography (CT) of the chest with contrast was ordered to rule out empyema or malignancy. The chest CT confirmed the previous findings while also revealing a surrounding satellite nodularity in the left lower lobe (FIGURE 2). QuantiFERON-TB Gold and HIV tests were both negative.

THE DIAGNOSIS

The patient was given a diagnosis of a lung abscess based on symptoms and imaging. An extensive smoking history, as well as multiple sedating medications, increased his likelihood of aspiration.

DISCUSSION

Lung abscess is the probable diagnosis in a patient with indolent infectious symptoms (cough, fever, night sweats) developing over days to weeks and a CXR finding of pulmonary opacity, often with an air-fluid level.^1-4 A lung abscess is a circumscribed collection of pus in the lung parenchyma that develops as a result of microbial infection.⁴

Primary vs secondary abscess. Lung abscesses can be divided into 2 groups: primary and secondary abscesses. Primary abscesses (60%) occur without any other medical condition or in patients prone to aspiration.⁵ Secondary abscesses occur in the setting of a comorbid medical condition, such as lung disease, heart disease, bronchogenic neoplasm, or immunocompromised status.⁵

Continue to: With a primary lung abscess...

With a primary lung abscess, oropharyngeal contents are aspirated (generally while the patient is unconscious) and contain mixed flora.² The aspirate typically migrates to the posterior segments of the upper lobes and to the superior segments of the lower lobes. These abscesses are usually singular and have an air-fluid level.^1,2

Secondary lung abscesses occur in bronchial obstruction (by tumor, foreign body, or enlarged lymph nodes), with coexisting lung diseases (bronchiectasis, cystic fibrosis, infected pulmonary infarcts, lung contusion) or by direct spread (broncho-esophageal fistula, subphrenic abscess).⁶ Secondary abscesses are associated with a poorer prognosis, dependent on the patient’s general condition and underlying disease.⁷

What to rule out

The differential diagnosis of cavitary lung lesion includes tuberculosis, necrotizing pneumonia, bronchial carcinoma, pulmonary embolism, vasculitis (eg, Churg-Strauss syndrome), and localized pleural empyema.^1,4 A CT scan is helpful to differentiate between a parenchymal lesion and pleural collection, which may not be as clear on CXR.^1,4

Tuberculosis manifests with fatigue, weight loss, and night sweats; a chest CT will reveal a cavitating lesion (usually upper lobe) with a characteristic “rim sign” that includes caseous necrosis surrounded by a peripheral enhancing rim.⁸

Necrotizing pneumonia manifests as acute, fulminant infection. The most common causative organisms on sputum culture are Streptococcus pneumoniae, Staphylococcus aureus, Klebsiella pneumoniae, and Pseudomonas species. Plain radiography will reveal multiple cavities and often associated pleural effusion and empyema.⁹

Continue to: Excavating bronchogenic carcinomas

Excavating bronchogenic carcinomas differ from a lung abscess in that a patient with the latter is typically, but not always, febrile and has purulent sputum. On imaging, a bronchogenic carcinoma has a thicker and more irregular wall than a lung abscess.¹⁰

Treatment

When antibiotics first became available, penicillin was used to treat lung abscess.¹¹ Then IV clindamycin became the drug of choice after 2 trials demonstrated its superiority to IV penicillin.^12,13 More recently, clindamycin alone has fallen out of favor due to growing anaerobic resistance.¹⁴

Current therapy includes beta-lactam with beta-lactamase inhibitors.¹⁴ Lung abscesses are typically polymicrobial and thus carry different degrees of antibiotic resistance.^15,16 If culture data are available, targeted therapy is preferred, especially for secondary abscesses.⁷ Antibiotic therapy is usually continued until a CXR reveals a small lesion or is clear, which may require several months of outpatient oral antibiotic therapy.⁴

Our patient was treated with IV clindamycin for 3 days in the hospital. Clindamycin was chosen due to his penicillin allergy and started empirically without any culture data. He was transitioned to oral clindamycin and completed a total 3-week course as his CXR continued to show improvement (FIGURE 3). He did not undergo bronchoscopy. A follow-up CXR showed resolution of lung abscess at 9 months. (FIGURE 4).

THE TAKEAWAY

All patients with lung abscesses should have sputum culture with gram stain done—­ideally prior to starting antibiotics.^3,4 Bronchoscopy should be considered for patients with atypical presentations or those who fail standard therapy, but may be used in other cases, as well.³

CORRESPONDENCE
Morteza Khodaee, MD, MPH, AFW Clinic, 3055 Roslyn Street, Denver, CO 80238; [email protected]

COVID-19 survivors face a sharply elevated risk of developing psychiatric or neurologic disorders in the 6 months after they contract the virus – a danger that mounts with symptom severity, new research shows.
 

In what is purported to be the largest study of its kind to date, results showed that among 236,379 COVID-19 patients, one-third were diagnosed with at least 1 of 14 psychiatric or neurologic disorders within a 6-month span.

The rate of illnesses, which ranged from depression to stroke, rose sharply among those with COVID-19 symptoms acute enough to require hospitalization.  

“If we look at patients who were hospitalized, that rate increased to 39%, and then increased to about just under 1 in 2 patients who needed ICU admission at the time of the COVID-19 diagnosis,” Maxime Taquet, PhD, University of Oxford (England) department of psychiatry, said at a media briefing.

Incidence jumps to almost two-thirds in patients with encephalopathy at the time of COVID-19 diagnosis, he added.

The study, which examined the brain health of 236,379 survivors of COVID-19 via a U.S. database of 81 million electronic health records, was published online April 6 in The Lancet Psychiatry.
 

High rate of neurologic, psychiatric disorders

The research team looked at the first-time diagnosis or recurrence of 14 neurologic and psychiatric outcomes in patients with confirmed SARS-CoV-2 infections. They also compared the brain health of this cohort with a control group of those with influenza or with non–COVID-19 respiratory infections over the same period. 

All study participants were older than 10 years, diagnosed with COVID-19 on or after Jan. 20, 2020, and still alive as of Dec. 13, 2020.

The psychiatric and neurologic conditions examined included intracranial hemorrhage; ischemic stroke; parkinsonism; Guillain-Barré syndrome; nerve, nerve root and plexus disorders; myoneural junction and muscle disease; encephalitis; dementia; psychotic, mood, and anxiety disorders; substance use disorder; and insomnia.

The investigators used hospitalization, intensive care admissions, and encephalopathy as an indication of the severity of COVID-19 symptoms.

The study benchmarked the primary cohort with four populations of patients diagnosed in the same period with nonrespiratory illnesses, including skin infection, urolithiasis, bone fractures, and pulmonary embolisms.

Results showed that substantially more COVID-19 patients were diagnosed with a neurologic or psychiatric disorder compared with those with other respiratory illnesses.

“On average, in terms of the relative numbers, there was a 44% increased risk of having a neurological or psychiatric diagnosis after COVID-19 than after the flu and a 16% increased risk compared to other respiratory tract infections,” Dr. Taquet told reporters.

Health services should be prepared for an increase in psychiatric and neurologic issues in the months to come, he said, adding that further investigations are needed into why, and how, the coronavirus affects brain health.
 

Largest study to date

Although previous research suggests a link between the two, this is the largest study of its kind, examines a wider range of neurologic outcomes, and spans the longest time frame to date, said study coinvestigator Paul Harrison, BM BCh, associate head of the University of Oxford department of psychiatry.

There was a lower incidence of mood and anxiety disorders vs. neurologic disorders in patients with severe COVID-19 symptoms, a finding that Dr. Harrison said may indicate pandemic-related psychological stress is driving these disorders vs. biological factors.

“This paper follows up on an earlier study we did where we found much the same association, and our view is that a lot of the mental health consequences of COVID are … to do with the stress of knowing that one has had COVID and all the implications that go with that, rather than its being a direct effect, for example, of the virus on the brain, or of the immune response to the virus on the brain,” he added.

In contrast, neurologic diagnoses were more likely to be “mediated by some direct consequence of the COVID infection,” he added.

Psychosis and dementia, for instance, were less frequent in the overall COVID-19 population but became much more frequent among those with severe symptoms. The research team said these findings, along with those related to the incidence of ischemic stroke, were “concerning.”

“We found that 1 in 50 patients with COVID-19 go on to have an ischemic stroke in the 6 months after the COVID-19 illness,” Dr. Taquet told reporters. “And that rate increased to 1 in 11 patients if we look at patients with encephalopathy at the time of the COVID-19 diagnosis.”

Rates of brain hemorrhages also rose sharply among those with acute symptoms. Just over 1 in 200 total COVID-19 patients were diagnosed with this neurological condition, but that jumped to 1 in 25 of those who experienced encephalopathy at the time of their COVID-19 diagnosis.
 

Need for replication

Study coauthor Masud Husain, PhD, of University of Oxford’s cognitive neurology department, told reporters that while there is evidence from other neurologic studies that the virus can access the brain, there has been little sign the neurons themselves are affected.

“There isn’t much evidence that the virus itself attacks neurons in the brain, but it can cause inflammation, and it can activate inflammatory cells in the brain,” he said.

“And those effects are probably very important in some of the biological effects on the brain. In addition, of course, we know that the virus can change clotting and the likelihood of thrombosis in the blood, and those effects can also impact upon the brain,” he added.

Dr. Harrison said it would be helpful to replicate the results garnered from the U.S. database in other populations.

“It goes without saying that replication of these results with other electronic health records and in other countries is a priority,” he said, adding that investigations are essential into how and why the virus affects brain health.

Dr. Harrison cited a U.K. Research and Innovation–funded study called COVID CNS that will follow patients with neurologic and/or psychiatric issues during acute COVID-19 in hopes of exploring possible causes.
 

Beyond a reasonable doubt

Commenting on the findings, Sir Simon Wessely, MD, Regius chair of psychiatry, King’s College London, said in a release: “This is a very important paper. It confirms beyond any reasonable doubt that COVID-19 affects both brain and mind in equal measure.”

Some of these effects, including stroke and anxiety disorders, were already known, but others such as dementia and psychosis were less well known, he added. 

“What is very new is the comparisons with all respiratory viruses or influenza, which suggests that these increases are specifically related to COVID-19, and not a general impact of viral infection,” Dr. Wessely said. “In general, the worse the illness, the greater the neurological or psychiatric outcomes, which is perhaps not surprising.    

“The worst outcomes were in those with encephalopathy – inflammation of the brain – again, not surprising. The association with dementia was, however, small and might reflect diagnostic issues, whilst so far there doesn’t seem early evidence of a link with parkinsonism, which was a major factor after the great Spanish Flu pandemic, although the authors caution that it is too early to rule this out.”

A version of this article first appeared on Medscape.com.

COVID-19 survivors face a sharply elevated risk of developing psychiatric or neurologic disorders in the 6 months after they contract the virus – a danger that mounts with symptom severity, new research shows.
 

In what is purported to be the largest study of its kind to date, results showed that among 236,379 COVID-19 patients, one-third were diagnosed with at least 1 of 14 psychiatric or neurologic disorders within a 6-month span.

The rate of illnesses, which ranged from depression to stroke, rose sharply among those with COVID-19 symptoms acute enough to require hospitalization.  

“If we look at patients who were hospitalized, that rate increased to 39%, and then increased to about just under 1 in 2 patients who needed ICU admission at the time of the COVID-19 diagnosis,” Maxime Taquet, PhD, University of Oxford (England) department of psychiatry, said at a media briefing.

Incidence jumps to almost two-thirds in patients with encephalopathy at the time of COVID-19 diagnosis, he added.

The study, which examined the brain health of 236,379 survivors of COVID-19 via a U.S. database of 81 million electronic health records, was published online April 6 in The Lancet Psychiatry.
 

High rate of neurologic, psychiatric disorders

The research team looked at the first-time diagnosis or recurrence of 14 neurologic and psychiatric outcomes in patients with confirmed SARS-CoV-2 infections. They also compared the brain health of this cohort with a control group of those with influenza or with non–COVID-19 respiratory infections over the same period. 

All study participants were older than 10 years, diagnosed with COVID-19 on or after Jan. 20, 2020, and still alive as of Dec. 13, 2020.

The psychiatric and neurologic conditions examined included intracranial hemorrhage; ischemic stroke; parkinsonism; Guillain-Barré syndrome; nerve, nerve root and plexus disorders; myoneural junction and muscle disease; encephalitis; dementia; psychotic, mood, and anxiety disorders; substance use disorder; and insomnia.

The investigators used hospitalization, intensive care admissions, and encephalopathy as an indication of the severity of COVID-19 symptoms.

The study benchmarked the primary cohort with four populations of patients diagnosed in the same period with nonrespiratory illnesses, including skin infection, urolithiasis, bone fractures, and pulmonary embolisms.

Results showed that substantially more COVID-19 patients were diagnosed with a neurologic or psychiatric disorder compared with those with other respiratory illnesses.

“On average, in terms of the relative numbers, there was a 44% increased risk of having a neurological or psychiatric diagnosis after COVID-19 than after the flu and a 16% increased risk compared to other respiratory tract infections,” Dr. Taquet told reporters.

Health services should be prepared for an increase in psychiatric and neurologic issues in the months to come, he said, adding that further investigations are needed into why, and how, the coronavirus affects brain health.
 

Largest study to date

Although previous research suggests a link between the two, this is the largest study of its kind, examines a wider range of neurologic outcomes, and spans the longest time frame to date, said study coinvestigator Paul Harrison, BM BCh, associate head of the University of Oxford department of psychiatry.

There was a lower incidence of mood and anxiety disorders vs. neurologic disorders in patients with severe COVID-19 symptoms, a finding that Dr. Harrison said may indicate pandemic-related psychological stress is driving these disorders vs. biological factors.

“This paper follows up on an earlier study we did where we found much the same association, and our view is that a lot of the mental health consequences of COVID are … to do with the stress of knowing that one has had COVID and all the implications that go with that, rather than its being a direct effect, for example, of the virus on the brain, or of the immune response to the virus on the brain,” he added.

In contrast, neurologic diagnoses were more likely to be “mediated by some direct consequence of the COVID infection,” he added.

Psychosis and dementia, for instance, were less frequent in the overall COVID-19 population but became much more frequent among those with severe symptoms. The research team said these findings, along with those related to the incidence of ischemic stroke, were “concerning.”

“We found that 1 in 50 patients with COVID-19 go on to have an ischemic stroke in the 6 months after the COVID-19 illness,” Dr. Taquet told reporters. “And that rate increased to 1 in 11 patients if we look at patients with encephalopathy at the time of the COVID-19 diagnosis.”

Rates of brain hemorrhages also rose sharply among those with acute symptoms. Just over 1 in 200 total COVID-19 patients were diagnosed with this neurological condition, but that jumped to 1 in 25 of those who experienced encephalopathy at the time of their COVID-19 diagnosis.
 

Need for replication

Study coauthor Masud Husain, PhD, of University of Oxford’s cognitive neurology department, told reporters that while there is evidence from other neurologic studies that the virus can access the brain, there has been little sign the neurons themselves are affected.

“There isn’t much evidence that the virus itself attacks neurons in the brain, but it can cause inflammation, and it can activate inflammatory cells in the brain,” he said.

“And those effects are probably very important in some of the biological effects on the brain. In addition, of course, we know that the virus can change clotting and the likelihood of thrombosis in the blood, and those effects can also impact upon the brain,” he added.

Dr. Harrison said it would be helpful to replicate the results garnered from the U.S. database in other populations.

“It goes without saying that replication of these results with other electronic health records and in other countries is a priority,” he said, adding that investigations are essential into how and why the virus affects brain health.

Dr. Harrison cited a U.K. Research and Innovation–funded study called COVID CNS that will follow patients with neurologic and/or psychiatric issues during acute COVID-19 in hopes of exploring possible causes.
 

Beyond a reasonable doubt

Commenting on the findings, Sir Simon Wessely, MD, Regius chair of psychiatry, King’s College London, said in a release: “This is a very important paper. It confirms beyond any reasonable doubt that COVID-19 affects both brain and mind in equal measure.”

Some of these effects, including stroke and anxiety disorders, were already known, but others such as dementia and psychosis were less well known, he added. 

“What is very new is the comparisons with all respiratory viruses or influenza, which suggests that these increases are specifically related to COVID-19, and not a general impact of viral infection,” Dr. Wessely said. “In general, the worse the illness, the greater the neurological or psychiatric outcomes, which is perhaps not surprising.    

“The worst outcomes were in those with encephalopathy – inflammation of the brain – again, not surprising. The association with dementia was, however, small and might reflect diagnostic issues, whilst so far there doesn’t seem early evidence of a link with parkinsonism, which was a major factor after the great Spanish Flu pandemic, although the authors caution that it is too early to rule this out.”

A version of this article first appeared on Medscape.com.

COVID-19 survivors face a sharply elevated risk of developing psychiatric or neurologic disorders in the 6 months after they contract the virus – a danger that mounts with symptom severity, new research shows.
 

In what is purported to be the largest study of its kind to date, results showed that among 236,379 COVID-19 patients, one-third were diagnosed with at least 1 of 14 psychiatric or neurologic disorders within a 6-month span.

The rate of illnesses, which ranged from depression to stroke, rose sharply among those with COVID-19 symptoms acute enough to require hospitalization.  

“If we look at patients who were hospitalized, that rate increased to 39%, and then increased to about just under 1 in 2 patients who needed ICU admission at the time of the COVID-19 diagnosis,” Maxime Taquet, PhD, University of Oxford (England) department of psychiatry, said at a media briefing.

Incidence jumps to almost two-thirds in patients with encephalopathy at the time of COVID-19 diagnosis, he added.

The study, which examined the brain health of 236,379 survivors of COVID-19 via a U.S. database of 81 million electronic health records, was published online April 6 in The Lancet Psychiatry.
 

High rate of neurologic, psychiatric disorders

The research team looked at the first-time diagnosis or recurrence of 14 neurologic and psychiatric outcomes in patients with confirmed SARS-CoV-2 infections. They also compared the brain health of this cohort with a control group of those with influenza or with non–COVID-19 respiratory infections over the same period. 

All study participants were older than 10 years, diagnosed with COVID-19 on or after Jan. 20, 2020, and still alive as of Dec. 13, 2020.

The psychiatric and neurologic conditions examined included intracranial hemorrhage; ischemic stroke; parkinsonism; Guillain-Barré syndrome; nerve, nerve root and plexus disorders; myoneural junction and muscle disease; encephalitis; dementia; psychotic, mood, and anxiety disorders; substance use disorder; and insomnia.

The investigators used hospitalization, intensive care admissions, and encephalopathy as an indication of the severity of COVID-19 symptoms.

The study benchmarked the primary cohort with four populations of patients diagnosed in the same period with nonrespiratory illnesses, including skin infection, urolithiasis, bone fractures, and pulmonary embolisms.

Results showed that substantially more COVID-19 patients were diagnosed with a neurologic or psychiatric disorder compared with those with other respiratory illnesses.

“On average, in terms of the relative numbers, there was a 44% increased risk of having a neurological or psychiatric diagnosis after COVID-19 than after the flu and a 16% increased risk compared to other respiratory tract infections,” Dr. Taquet told reporters.

Health services should be prepared for an increase in psychiatric and neurologic issues in the months to come, he said, adding that further investigations are needed into why, and how, the coronavirus affects brain health.
 

Largest study to date

Although previous research suggests a link between the two, this is the largest study of its kind, examines a wider range of neurologic outcomes, and spans the longest time frame to date, said study coinvestigator Paul Harrison, BM BCh, associate head of the University of Oxford department of psychiatry.

There was a lower incidence of mood and anxiety disorders vs. neurologic disorders in patients with severe COVID-19 symptoms, a finding that Dr. Harrison said may indicate pandemic-related psychological stress is driving these disorders vs. biological factors.

“This paper follows up on an earlier study we did where we found much the same association, and our view is that a lot of the mental health consequences of COVID are … to do with the stress of knowing that one has had COVID and all the implications that go with that, rather than its being a direct effect, for example, of the virus on the brain, or of the immune response to the virus on the brain,” he added.

In contrast, neurologic diagnoses were more likely to be “mediated by some direct consequence of the COVID infection,” he added.

Psychosis and dementia, for instance, were less frequent in the overall COVID-19 population but became much more frequent among those with severe symptoms. The research team said these findings, along with those related to the incidence of ischemic stroke, were “concerning.”

“We found that 1 in 50 patients with COVID-19 go on to have an ischemic stroke in the 6 months after the COVID-19 illness,” Dr. Taquet told reporters. “And that rate increased to 1 in 11 patients if we look at patients with encephalopathy at the time of the COVID-19 diagnosis.”

Rates of brain hemorrhages also rose sharply among those with acute symptoms. Just over 1 in 200 total COVID-19 patients were diagnosed with this neurological condition, but that jumped to 1 in 25 of those who experienced encephalopathy at the time of their COVID-19 diagnosis.
 

Need for replication

Study coauthor Masud Husain, PhD, of University of Oxford’s cognitive neurology department, told reporters that while there is evidence from other neurologic studies that the virus can access the brain, there has been little sign the neurons themselves are affected.

“There isn’t much evidence that the virus itself attacks neurons in the brain, but it can cause inflammation, and it can activate inflammatory cells in the brain,” he said.

“And those effects are probably very important in some of the biological effects on the brain. In addition, of course, we know that the virus can change clotting and the likelihood of thrombosis in the blood, and those effects can also impact upon the brain,” he added.

Dr. Harrison said it would be helpful to replicate the results garnered from the U.S. database in other populations.

“It goes without saying that replication of these results with other electronic health records and in other countries is a priority,” he said, adding that investigations are essential into how and why the virus affects brain health.

Dr. Harrison cited a U.K. Research and Innovation–funded study called COVID CNS that will follow patients with neurologic and/or psychiatric issues during acute COVID-19 in hopes of exploring possible causes.
 

Beyond a reasonable doubt

Commenting on the findings, Sir Simon Wessely, MD, Regius chair of psychiatry, King’s College London, said in a release: “This is a very important paper. It confirms beyond any reasonable doubt that COVID-19 affects both brain and mind in equal measure.”

Some of these effects, including stroke and anxiety disorders, were already known, but others such as dementia and psychosis were less well known, he added. 

“What is very new is the comparisons with all respiratory viruses or influenza, which suggests that these increases are specifically related to COVID-19, and not a general impact of viral infection,” Dr. Wessely said. “In general, the worse the illness, the greater the neurological or psychiatric outcomes, which is perhaps not surprising.    

“The worst outcomes were in those with encephalopathy – inflammation of the brain – again, not surprising. The association with dementia was, however, small and might reflect diagnostic issues, whilst so far there doesn’t seem early evidence of a link with parkinsonism, which was a major factor after the great Spanish Flu pandemic, although the authors caution that it is too early to rule this out.”

A version of this article first appeared on Medscape.com.

The list of medical comorbidities associated with high risk for severe COVID-19 now includes moderate to severe asthma, diabetes, and substance use disorders, according to the Centers for Disease Control and Prevention.

The CDC’s latest list consists of 17 conditions or groups of related conditions that may increase patients’ risk of developing severe outcomes of COVID-19, the CDC said on a web page intended for the general public.

On a separate page, the CDC defines severe outcomes “as hospitalization, admission to the intensive care unit, intubation or mechanical ventilation, or death.”

Asthma is included in the newly expanded list with other chronic lung diseases such as chronic obstructive pulmonary disease and cystic fibrosis; the list’s heart disease entry covers coronary artery disease, heart failure, cardiomyopathies, and hypertension, the CDC said.

[email protected]

The list of medical comorbidities associated with high risk for severe COVID-19 now includes moderate to severe asthma, diabetes, and substance use disorders, according to the Centers for Disease Control and Prevention.

The CDC’s latest list consists of 17 conditions or groups of related conditions that may increase patients’ risk of developing severe outcomes of COVID-19, the CDC said on a web page intended for the general public.

On a separate page, the CDC defines severe outcomes “as hospitalization, admission to the intensive care unit, intubation or mechanical ventilation, or death.”

Asthma is included in the newly expanded list with other chronic lung diseases such as chronic obstructive pulmonary disease and cystic fibrosis; the list’s heart disease entry covers coronary artery disease, heart failure, cardiomyopathies, and hypertension, the CDC said.

[email protected]

The list of medical comorbidities associated with high risk for severe COVID-19 now includes moderate to severe asthma, diabetes, and substance use disorders, according to the Centers for Disease Control and Prevention.

The CDC’s latest list consists of 17 conditions or groups of related conditions that may increase patients’ risk of developing severe outcomes of COVID-19, the CDC said on a web page intended for the general public.

On a separate page, the CDC defines severe outcomes “as hospitalization, admission to the intensive care unit, intubation or mechanical ventilation, or death.”

Asthma is included in the newly expanded list with other chronic lung diseases such as chronic obstructive pulmonary disease and cystic fibrosis; the list’s heart disease entry covers coronary artery disease, heart failure, cardiomyopathies, and hypertension, the CDC said.

[email protected]

COVID-19 increases the risk of developing erectile dysfunction (ED) by nearly sixfold, according to data from the first study to investigate the association between ED and COVID-19 in young men in a real-life setting.

The preliminary data also indicated that ED is a marker of increased susceptibility to SARS-CoV-2 infection. Men with ED are more than five times more likely to have COVID-19 (odds ratio, 5.27).

For men with a history of COVID-19, the odds ratio of developing ED was 5.66. The strength of the association remained after adjusting for factors considered to affect ED.

The study, which was led by Emmanuele A. Jannini, MD, professor of endocrinology and medical sexology, University of Rome Tor Vergata, was published on March 20 in Andrology.
 

‘Mask up to keep it up’

ED can be both a short-term and a long-term complication of COVID-19, Dr. Jannini suggests.

“When offered, men should have the COVID vaccination. It also gives a whole new meaning to wearing the mask – mask up to keep it up,” he said. “It could possibly have the added benefit of preventing sexual dysfunction.”

He points out that older age, diabetes, high body mass index, and smoking increase the risk of contracting COVID-19.

“These are the same as risk factors for ED. Results of our study agree with the pathophysiological mechanisms linking ED, endothelial dysfunction, and COVID-19. Basically, endothelial dysfunction is common in both conditions [COVID-10 and ED].

“We would like to find some sort of biomarker of endothelial dysfunction post COVID, because it seems that there are many sequelae that coexist for a long time after infection,” added Dr. Jannini. “Asking a patient if they have ED after COVID might provide a measure of systemic wellness.”

Allan Pacey, MD, professor of andrology at the University of Sheffield (England), welcomed the research, noting, “This seems to be a well-conducted study. However, at the moment, the relationship is just a correlation, and it might be that some of the comorbidities that increased the men’s chances of getting a significant COVID-19 infection may have also independently increased their chances of erectile dysfunction.

“But the authors offer a plausible mechanism by which COVID-19 may impact directly on erectile function,” agrees Dr. Pacey. However, “There’s more work to be done,” he said. “I’d also argue it’s a good reason for men to wear a mask, practice social distancing, and take the vaccine when it’s offered to them.”

Urologist John Mulhall, MD, from Memorial Sloan Kettering Cancer Center, New York, remarked, “It was a highly preliminary study, but the data are suggestive of a potential link between COVID-19 infection and ED.

“However, it raises enough questions such that further large, more long-term analyses are required to define causation. Future studies assessing testosterone levels and erectile hemodynamics will be needed to provide definite evidence of a causative link,» he stressed.
 

Erectile problems a ‘hallmark’ of systemic endothelial dysfunction

Prior research has suggested that asymptomatic COVID-19 could be associated with subclinical microvascular involvement with long-term cardiovascular effects.

“Indeed, COVID-19 is by all means an endothelial disease, in which systemic manifestations ... can potentially be due to alterations in the endothelial thrombotic/fibrinolytic balance,” emphasized Dr. Jannini. “In addition, endothelial cells express many of the cofactors used by SARS-CoV-2 to invade host cells.

“Erectile dysfunction has often been considered a hallmark of endothelial dysfunction, and as such, a potential association between ED and COVID-19 has also been postulated and underpinned the investigation in this study,” he explained.

The study was predicated on the fact that ED is often considered a clinical marker of impaired overall health status, which often features cardiovascular events at an early age. It aimed to investigate the bidirectional relationship between COVID-19 and ED. It asked whether ED could be a risk factor for contracting COVID-19 and whether having COVID-19 predisposes to developing ED.

“This would possibly suggest that men with ED, due to the underlying conditions which impair erectile response, could also be more susceptible to contracting COVID-19,” said Dr. Jannini.

Data were drawn from the Sex@COVID online survey, which was conducted from April 7 to May 4, 2020, in Italy. The survey included 6,821 participants aged 18 years or older (4,177 women; 2,644 men; mean age, 32.83 ± 11.24 years). Participants were stratified on the basis of marital status and sexual activity during lockdown. From these participants, 985 sexually active men were identified, among whom 25 (2.54%) reported having tested positive for COVID-19. These persons were matched with 75 COVID-19–negative men using propensity score matching in a 1:3 ratio.

The researchers used standardized psychometric tools to measure the effects of lockdown and social distancing on the intrapsychic, relational, and sexual health of the participants.

Erectile function was measured with the International Index of Erectile Function or the Sexual Health Inventory for Men, which are often used in clinical settings. In light of the two-way interaction between sexual activity and psychological well-being, results were adjusted for any influence of anxiety and depression, which were measured with recognized scales for use in patients with a history of COVID-19.

Results showed that the prevalence of ED was significantly higher among men who self-reported a history of COVID-19, compared with a matching COVID-negative population (28% vs. 9.33%; P = .027).

After adjusting for variables that are considered to have a bearing on the development of ED, such as psychological status, age, and BMI, the odds ratio for developing ED after having had COVID-19 was 5.66 (95% confidence interval, 1.50-24.01).

Similarly, after adjusting for age and BMI, men with ED were more likely to have COVID‐19 (OR, 5.27; 95% CI, 1.49-20.09).

The authors note that persons who experience “a sudden onset or worsening of ED might also consider precautionary quarantine or nasopharyngeal swab, as COVID‐19 might act as a potential initiating trigger for the onset of erectile impairment, or an aggravating factor for its progression to more severe forms.”

Similarly, patients who have ED “should consider their erectile impairment as a sign of possible underlying conditions that could increase the likelihood of suffering from COVID‐19,” they write.

Dr. Mulhall highlighted several limitations of the study, including its retrospective nature, recall bias associated with the use of online questionnaires, and the inclusion of COVID‐19 diagnoses that were based on the response to the survey rather than on testing with nasopharyngeal swabs. In addition, comorbidity data were incomplete, and there was no indication of duration after COVID-19 infection, the severity of COVID-19, or the severity of ED.

The authors have disclosed no relevant financial relationships. Dr. Pacey is chairman of the advisory committee of the U.K. National External Quality Assurance Schemes in Andrology, editor-in-chief of Human Fertility, trustee of the Progress Educational Trust, and trustee of the British Fertility Society (all unpaid). Dr. Mulhall has disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

COVID-19 increases the risk of developing erectile dysfunction (ED) by nearly sixfold, according to data from the first study to investigate the association between ED and COVID-19 in young men in a real-life setting.

The preliminary data also indicated that ED is a marker of increased susceptibility to SARS-CoV-2 infection. Men with ED are more than five times more likely to have COVID-19 (odds ratio, 5.27).

For men with a history of COVID-19, the odds ratio of developing ED was 5.66. The strength of the association remained after adjusting for factors considered to affect ED.

The study, which was led by Emmanuele A. Jannini, MD, professor of endocrinology and medical sexology, University of Rome Tor Vergata, was published on March 20 in Andrology.
 

‘Mask up to keep it up’

ED can be both a short-term and a long-term complication of COVID-19, Dr. Jannini suggests.

“When offered, men should have the COVID vaccination. It also gives a whole new meaning to wearing the mask – mask up to keep it up,” he said. “It could possibly have the added benefit of preventing sexual dysfunction.”

He points out that older age, diabetes, high body mass index, and smoking increase the risk of contracting COVID-19.

“These are the same as risk factors for ED. Results of our study agree with the pathophysiological mechanisms linking ED, endothelial dysfunction, and COVID-19. Basically, endothelial dysfunction is common in both conditions [COVID-10 and ED].

“We would like to find some sort of biomarker of endothelial dysfunction post COVID, because it seems that there are many sequelae that coexist for a long time after infection,” added Dr. Jannini. “Asking a patient if they have ED after COVID might provide a measure of systemic wellness.”

Allan Pacey, MD, professor of andrology at the University of Sheffield (England), welcomed the research, noting, “This seems to be a well-conducted study. However, at the moment, the relationship is just a correlation, and it might be that some of the comorbidities that increased the men’s chances of getting a significant COVID-19 infection may have also independently increased their chances of erectile dysfunction.

“But the authors offer a plausible mechanism by which COVID-19 may impact directly on erectile function,” agrees Dr. Pacey. However, “There’s more work to be done,” he said. “I’d also argue it’s a good reason for men to wear a mask, practice social distancing, and take the vaccine when it’s offered to them.”

Urologist John Mulhall, MD, from Memorial Sloan Kettering Cancer Center, New York, remarked, “It was a highly preliminary study, but the data are suggestive of a potential link between COVID-19 infection and ED.

“However, it raises enough questions such that further large, more long-term analyses are required to define causation. Future studies assessing testosterone levels and erectile hemodynamics will be needed to provide definite evidence of a causative link,» he stressed.
 

Erectile problems a ‘hallmark’ of systemic endothelial dysfunction

Prior research has suggested that asymptomatic COVID-19 could be associated with subclinical microvascular involvement with long-term cardiovascular effects.

“Indeed, COVID-19 is by all means an endothelial disease, in which systemic manifestations ... can potentially be due to alterations in the endothelial thrombotic/fibrinolytic balance,” emphasized Dr. Jannini. “In addition, endothelial cells express many of the cofactors used by SARS-CoV-2 to invade host cells.

“Erectile dysfunction has often been considered a hallmark of endothelial dysfunction, and as such, a potential association between ED and COVID-19 has also been postulated and underpinned the investigation in this study,” he explained.

The study was predicated on the fact that ED is often considered a clinical marker of impaired overall health status, which often features cardiovascular events at an early age. It aimed to investigate the bidirectional relationship between COVID-19 and ED. It asked whether ED could be a risk factor for contracting COVID-19 and whether having COVID-19 predisposes to developing ED.

“This would possibly suggest that men with ED, due to the underlying conditions which impair erectile response, could also be more susceptible to contracting COVID-19,” said Dr. Jannini.

Data were drawn from the Sex@COVID online survey, which was conducted from April 7 to May 4, 2020, in Italy. The survey included 6,821 participants aged 18 years or older (4,177 women; 2,644 men; mean age, 32.83 ± 11.24 years). Participants were stratified on the basis of marital status and sexual activity during lockdown. From these participants, 985 sexually active men were identified, among whom 25 (2.54%) reported having tested positive for COVID-19. These persons were matched with 75 COVID-19–negative men using propensity score matching in a 1:3 ratio.

The researchers used standardized psychometric tools to measure the effects of lockdown and social distancing on the intrapsychic, relational, and sexual health of the participants.

Erectile function was measured with the International Index of Erectile Function or the Sexual Health Inventory for Men, which are often used in clinical settings. In light of the two-way interaction between sexual activity and psychological well-being, results were adjusted for any influence of anxiety and depression, which were measured with recognized scales for use in patients with a history of COVID-19.

Results showed that the prevalence of ED was significantly higher among men who self-reported a history of COVID-19, compared with a matching COVID-negative population (28% vs. 9.33%; P = .027).

After adjusting for variables that are considered to have a bearing on the development of ED, such as psychological status, age, and BMI, the odds ratio for developing ED after having had COVID-19 was 5.66 (95% confidence interval, 1.50-24.01).

Similarly, after adjusting for age and BMI, men with ED were more likely to have COVID‐19 (OR, 5.27; 95% CI, 1.49-20.09).

The authors note that persons who experience “a sudden onset or worsening of ED might also consider precautionary quarantine or nasopharyngeal swab, as COVID‐19 might act as a potential initiating trigger for the onset of erectile impairment, or an aggravating factor for its progression to more severe forms.”

Similarly, patients who have ED “should consider their erectile impairment as a sign of possible underlying conditions that could increase the likelihood of suffering from COVID‐19,” they write.

Dr. Mulhall highlighted several limitations of the study, including its retrospective nature, recall bias associated with the use of online questionnaires, and the inclusion of COVID‐19 diagnoses that were based on the response to the survey rather than on testing with nasopharyngeal swabs. In addition, comorbidity data were incomplete, and there was no indication of duration after COVID-19 infection, the severity of COVID-19, or the severity of ED.

The authors have disclosed no relevant financial relationships. Dr. Pacey is chairman of the advisory committee of the U.K. National External Quality Assurance Schemes in Andrology, editor-in-chief of Human Fertility, trustee of the Progress Educational Trust, and trustee of the British Fertility Society (all unpaid). Dr. Mulhall has disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

COVID-19 increases the risk of developing erectile dysfunction (ED) by nearly sixfold, according to data from the first study to investigate the association between ED and COVID-19 in young men in a real-life setting.

The preliminary data also indicated that ED is a marker of increased susceptibility to SARS-CoV-2 infection. Men with ED are more than five times more likely to have COVID-19 (odds ratio, 5.27).

For men with a history of COVID-19, the odds ratio of developing ED was 5.66. The strength of the association remained after adjusting for factors considered to affect ED.

The study, which was led by Emmanuele A. Jannini, MD, professor of endocrinology and medical sexology, University of Rome Tor Vergata, was published on March 20 in Andrology.
 

‘Mask up to keep it up’

ED can be both a short-term and a long-term complication of COVID-19, Dr. Jannini suggests.

“When offered, men should have the COVID vaccination. It also gives a whole new meaning to wearing the mask – mask up to keep it up,” he said. “It could possibly have the added benefit of preventing sexual dysfunction.”

He points out that older age, diabetes, high body mass index, and smoking increase the risk of contracting COVID-19.

“These are the same as risk factors for ED. Results of our study agree with the pathophysiological mechanisms linking ED, endothelial dysfunction, and COVID-19. Basically, endothelial dysfunction is common in both conditions [COVID-10 and ED].

“We would like to find some sort of biomarker of endothelial dysfunction post COVID, because it seems that there are many sequelae that coexist for a long time after infection,” added Dr. Jannini. “Asking a patient if they have ED after COVID might provide a measure of systemic wellness.”

Allan Pacey, MD, professor of andrology at the University of Sheffield (England), welcomed the research, noting, “This seems to be a well-conducted study. However, at the moment, the relationship is just a correlation, and it might be that some of the comorbidities that increased the men’s chances of getting a significant COVID-19 infection may have also independently increased their chances of erectile dysfunction.

“But the authors offer a plausible mechanism by which COVID-19 may impact directly on erectile function,” agrees Dr. Pacey. However, “There’s more work to be done,” he said. “I’d also argue it’s a good reason for men to wear a mask, practice social distancing, and take the vaccine when it’s offered to them.”

Urologist John Mulhall, MD, from Memorial Sloan Kettering Cancer Center, New York, remarked, “It was a highly preliminary study, but the data are suggestive of a potential link between COVID-19 infection and ED.

“However, it raises enough questions such that further large, more long-term analyses are required to define causation. Future studies assessing testosterone levels and erectile hemodynamics will be needed to provide definite evidence of a causative link,» he stressed.
 

Erectile problems a ‘hallmark’ of systemic endothelial dysfunction

Prior research has suggested that asymptomatic COVID-19 could be associated with subclinical microvascular involvement with long-term cardiovascular effects.

“Indeed, COVID-19 is by all means an endothelial disease, in which systemic manifestations ... can potentially be due to alterations in the endothelial thrombotic/fibrinolytic balance,” emphasized Dr. Jannini. “In addition, endothelial cells express many of the cofactors used by SARS-CoV-2 to invade host cells.

“Erectile dysfunction has often been considered a hallmark of endothelial dysfunction, and as such, a potential association between ED and COVID-19 has also been postulated and underpinned the investigation in this study,” he explained.

The study was predicated on the fact that ED is often considered a clinical marker of impaired overall health status, which often features cardiovascular events at an early age. It aimed to investigate the bidirectional relationship between COVID-19 and ED. It asked whether ED could be a risk factor for contracting COVID-19 and whether having COVID-19 predisposes to developing ED.

“This would possibly suggest that men with ED, due to the underlying conditions which impair erectile response, could also be more susceptible to contracting COVID-19,” said Dr. Jannini.

Data were drawn from the Sex@COVID online survey, which was conducted from April 7 to May 4, 2020, in Italy. The survey included 6,821 participants aged 18 years or older (4,177 women; 2,644 men; mean age, 32.83 ± 11.24 years). Participants were stratified on the basis of marital status and sexual activity during lockdown. From these participants, 985 sexually active men were identified, among whom 25 (2.54%) reported having tested positive for COVID-19. These persons were matched with 75 COVID-19–negative men using propensity score matching in a 1:3 ratio.

The researchers used standardized psychometric tools to measure the effects of lockdown and social distancing on the intrapsychic, relational, and sexual health of the participants.

Erectile function was measured with the International Index of Erectile Function or the Sexual Health Inventory for Men, which are often used in clinical settings. In light of the two-way interaction between sexual activity and psychological well-being, results were adjusted for any influence of anxiety and depression, which were measured with recognized scales for use in patients with a history of COVID-19.

Results showed that the prevalence of ED was significantly higher among men who self-reported a history of COVID-19, compared with a matching COVID-negative population (28% vs. 9.33%; P = .027).

After adjusting for variables that are considered to have a bearing on the development of ED, such as psychological status, age, and BMI, the odds ratio for developing ED after having had COVID-19 was 5.66 (95% confidence interval, 1.50-24.01).

Similarly, after adjusting for age and BMI, men with ED were more likely to have COVID‐19 (OR, 5.27; 95% CI, 1.49-20.09).

The authors note that persons who experience “a sudden onset or worsening of ED might also consider precautionary quarantine or nasopharyngeal swab, as COVID‐19 might act as a potential initiating trigger for the onset of erectile impairment, or an aggravating factor for its progression to more severe forms.”

Similarly, patients who have ED “should consider their erectile impairment as a sign of possible underlying conditions that could increase the likelihood of suffering from COVID‐19,” they write.

Dr. Mulhall highlighted several limitations of the study, including its retrospective nature, recall bias associated with the use of online questionnaires, and the inclusion of COVID‐19 diagnoses that were based on the response to the survey rather than on testing with nasopharyngeal swabs. In addition, comorbidity data were incomplete, and there was no indication of duration after COVID-19 infection, the severity of COVID-19, or the severity of ED.

The authors have disclosed no relevant financial relationships. Dr. Pacey is chairman of the advisory committee of the U.K. National External Quality Assurance Schemes in Andrology, editor-in-chief of Human Fertility, trustee of the Progress Educational Trust, and trustee of the British Fertility Society (all unpaid). Dr. Mulhall has disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

The incidence of venous thromboembolism (VTE) in nonhospitalized patients with COVID-19 was not significantly different from patients without the infectious disease, according to a new study published in JAMA Internal Medicine.

Design Cells/Getty Images

National Institutes of Health guidelines recommend blood thinners to prevent blood clots in patients hospitalized with COVID-19. However, the new study provides more insight on the best treatment approach for COVID-19 outpatients.

“[COVID-19’s] rapid global progression and impact has caused us to make and modify treatment decisions at a pace that we never have in modern medicine,” study author Nareg Roubinian, MD, an investigator at Kaiser Permanente, Oakland, Calif., said in an interview.

“As with other potential therapies for COVID-19, blood thinners need to be prospectively studied in a clinical trial to determine if they improve patient outcomes,” Dr. Roubinian added.

The increased risk of blood clots in patients hospitalized with COVID-19 has been a major issue throughout the pandemic. In fact, one study published in November 2020 found that more than half of patients hospitalized with the illness have prothrombotic antiphospholipid (aPL) autoantibodies in their blood, which could contribute to venous and arterial thromboembolism.

Although it was clear many hospitalized patients diagnosed with COVID-19 were developing more clots, researchers of the current study were not sure if this trend would also be seen in outpatients.

“Most people with COVID-19 do not need to be hospitalized, and we needed to know how often patients outside the hospital were having blood clots,” said Dr. Roubinian.

For the study, Dr. Roubinian and colleagues examined data on 220,588 patients who were members of Kaiser Permanente Northern California health plan and were tested for COVID-19 between Feb. 25 and Aug. 31, 2020. They then reported on the 30-day incidence of outpatient and hospital-associated blood clots following the COVID-19 diagnosis. Patients who were asymptomatic at the time of testing or had received anticoagulants within the last year were excluded.

“We knew from other studies that patients with COVID-19 often get sicker in the first few weeks after infection. What we didn’t know was whether COVID-19 patients were developing blood clots but not pneumonia or were developing blood clots at the same time as they developed pneumonia,” said Dr. Roubinian, an intensive care doctor with the Permanente Medical Group in Oakland, Calif. “Following the patients for 30 days allowed us to focus on the time period from infection to when blood clots were most likely to develop.”

Researchers found that of the cohort who took the COVID-19 test, 11.8% had a positive result. Within 30 days of the COVID-19 test, 0.8% of patients with a positive result were diagnosed with VTE compared to 0.5% of those who received a negative test result. They also found that viral testing took place in an outpatient setting for 59.1% of the patients with a positive viral test who later developed VTE. Of those patients, 76.1% had to be hospitalized.

Dr. Roubinian said he was surprised to see that the blood clotting in outpatients with COVID-19 was similar in frequency to what he saw in patients without the infection.

“Our findings suggest that blood clots do occur in COVID-19 patients but not on a scale where we need to put all or many COVID outpatients on blood thinners,” he said. “As with other potential therapies for COVID-19, blood thinners need to be prospectively studied in a clinical trial to determine if they improve patient outcomes.”

In December 2020, three trials investigating the risk and benefits of increased levels of anticoagulation in hospitalized COVID-19 patients were paused because of safety issues. The trials would have enrolled critically ill COVID-19 patients for whom therapeutic doses of anticoagulation drugs showed no benefit.

Anticoagulants are associated with bleeding risks, including prolonged nosebleeds and vomiting or coughing up blood.

Instead of prescribing the routine use of thromboprophylactic drugs to COVID-19 outpatients, Dr. Roubinian believes it would be helpful to learn how to determine whether a patient at risk of becoming sick or being hospitalized would benefit from being treated with such drugs.

Dr. Roubinian reported receiving grants from the National Institutes of Health and the National Heart, Lung, and Blood Institute during the conduct of the study.
 

The incidence of venous thromboembolism (VTE) in nonhospitalized patients with COVID-19 was not significantly different from patients without the infectious disease, according to a new study published in JAMA Internal Medicine.

Design Cells/Getty Images

National Institutes of Health guidelines recommend blood thinners to prevent blood clots in patients hospitalized with COVID-19. However, the new study provides more insight on the best treatment approach for COVID-19 outpatients.

“[COVID-19’s] rapid global progression and impact has caused us to make and modify treatment decisions at a pace that we never have in modern medicine,” study author Nareg Roubinian, MD, an investigator at Kaiser Permanente, Oakland, Calif., said in an interview.

“As with other potential therapies for COVID-19, blood thinners need to be prospectively studied in a clinical trial to determine if they improve patient outcomes,” Dr. Roubinian added.

The increased risk of blood clots in patients hospitalized with COVID-19 has been a major issue throughout the pandemic. In fact, one study published in November 2020 found that more than half of patients hospitalized with the illness have prothrombotic antiphospholipid (aPL) autoantibodies in their blood, which could contribute to venous and arterial thromboembolism.

Although it was clear many hospitalized patients diagnosed with COVID-19 were developing more clots, researchers of the current study were not sure if this trend would also be seen in outpatients.

“Most people with COVID-19 do not need to be hospitalized, and we needed to know how often patients outside the hospital were having blood clots,” said Dr. Roubinian.

For the study, Dr. Roubinian and colleagues examined data on 220,588 patients who were members of Kaiser Permanente Northern California health plan and were tested for COVID-19 between Feb. 25 and Aug. 31, 2020. They then reported on the 30-day incidence of outpatient and hospital-associated blood clots following the COVID-19 diagnosis. Patients who were asymptomatic at the time of testing or had received anticoagulants within the last year were excluded.

“We knew from other studies that patients with COVID-19 often get sicker in the first few weeks after infection. What we didn’t know was whether COVID-19 patients were developing blood clots but not pneumonia or were developing blood clots at the same time as they developed pneumonia,” said Dr. Roubinian, an intensive care doctor with the Permanente Medical Group in Oakland, Calif. “Following the patients for 30 days allowed us to focus on the time period from infection to when blood clots were most likely to develop.”

Researchers found that of the cohort who took the COVID-19 test, 11.8% had a positive result. Within 30 days of the COVID-19 test, 0.8% of patients with a positive result were diagnosed with VTE compared to 0.5% of those who received a negative test result. They also found that viral testing took place in an outpatient setting for 59.1% of the patients with a positive viral test who later developed VTE. Of those patients, 76.1% had to be hospitalized.

Dr. Roubinian said he was surprised to see that the blood clotting in outpatients with COVID-19 was similar in frequency to what he saw in patients without the infection.

“Our findings suggest that blood clots do occur in COVID-19 patients but not on a scale where we need to put all or many COVID outpatients on blood thinners,” he said. “As with other potential therapies for COVID-19, blood thinners need to be prospectively studied in a clinical trial to determine if they improve patient outcomes.”

In December 2020, three trials investigating the risk and benefits of increased levels of anticoagulation in hospitalized COVID-19 patients were paused because of safety issues. The trials would have enrolled critically ill COVID-19 patients for whom therapeutic doses of anticoagulation drugs showed no benefit.

Anticoagulants are associated with bleeding risks, including prolonged nosebleeds and vomiting or coughing up blood.

Instead of prescribing the routine use of thromboprophylactic drugs to COVID-19 outpatients, Dr. Roubinian believes it would be helpful to learn how to determine whether a patient at risk of becoming sick or being hospitalized would benefit from being treated with such drugs.

Dr. Roubinian reported receiving grants from the National Institutes of Health and the National Heart, Lung, and Blood Institute during the conduct of the study.
 

The incidence of venous thromboembolism (VTE) in nonhospitalized patients with COVID-19 was not significantly different from patients without the infectious disease, according to a new study published in JAMA Internal Medicine.

Design Cells/Getty Images

National Institutes of Health guidelines recommend blood thinners to prevent blood clots in patients hospitalized with COVID-19. However, the new study provides more insight on the best treatment approach for COVID-19 outpatients.

“[COVID-19’s] rapid global progression and impact has caused us to make and modify treatment decisions at a pace that we never have in modern medicine,” study author Nareg Roubinian, MD, an investigator at Kaiser Permanente, Oakland, Calif., said in an interview.

“As with other potential therapies for COVID-19, blood thinners need to be prospectively studied in a clinical trial to determine if they improve patient outcomes,” Dr. Roubinian added.

The increased risk of blood clots in patients hospitalized with COVID-19 has been a major issue throughout the pandemic. In fact, one study published in November 2020 found that more than half of patients hospitalized with the illness have prothrombotic antiphospholipid (aPL) autoantibodies in their blood, which could contribute to venous and arterial thromboembolism.

Although it was clear many hospitalized patients diagnosed with COVID-19 were developing more clots, researchers of the current study were not sure if this trend would also be seen in outpatients.

“Most people with COVID-19 do not need to be hospitalized, and we needed to know how often patients outside the hospital were having blood clots,” said Dr. Roubinian.

For the study, Dr. Roubinian and colleagues examined data on 220,588 patients who were members of Kaiser Permanente Northern California health plan and were tested for COVID-19 between Feb. 25 and Aug. 31, 2020. They then reported on the 30-day incidence of outpatient and hospital-associated blood clots following the COVID-19 diagnosis. Patients who were asymptomatic at the time of testing or had received anticoagulants within the last year were excluded.

“We knew from other studies that patients with COVID-19 often get sicker in the first few weeks after infection. What we didn’t know was whether COVID-19 patients were developing blood clots but not pneumonia or were developing blood clots at the same time as they developed pneumonia,” said Dr. Roubinian, an intensive care doctor with the Permanente Medical Group in Oakland, Calif. “Following the patients for 30 days allowed us to focus on the time period from infection to when blood clots were most likely to develop.”

Researchers found that of the cohort who took the COVID-19 test, 11.8% had a positive result. Within 30 days of the COVID-19 test, 0.8% of patients with a positive result were diagnosed with VTE compared to 0.5% of those who received a negative test result. They also found that viral testing took place in an outpatient setting for 59.1% of the patients with a positive viral test who later developed VTE. Of those patients, 76.1% had to be hospitalized.

Dr. Roubinian said he was surprised to see that the blood clotting in outpatients with COVID-19 was similar in frequency to what he saw in patients without the infection.

“Our findings suggest that blood clots do occur in COVID-19 patients but not on a scale where we need to put all or many COVID outpatients on blood thinners,” he said. “As with other potential therapies for COVID-19, blood thinners need to be prospectively studied in a clinical trial to determine if they improve patient outcomes.”

In December 2020, three trials investigating the risk and benefits of increased levels of anticoagulation in hospitalized COVID-19 patients were paused because of safety issues. The trials would have enrolled critically ill COVID-19 patients for whom therapeutic doses of anticoagulation drugs showed no benefit.

Anticoagulants are associated with bleeding risks, including prolonged nosebleeds and vomiting or coughing up blood.

Instead of prescribing the routine use of thromboprophylactic drugs to COVID-19 outpatients, Dr. Roubinian believes it would be helpful to learn how to determine whether a patient at risk of becoming sick or being hospitalized would benefit from being treated with such drugs.

Dr. Roubinian reported receiving grants from the National Institutes of Health and the National Heart, Lung, and Blood Institute during the conduct of the study.