Emergency Medicine

Stoners, beware: Young, frequent marijuana users who also smoke cigarettes are at a nearly three-fold increased risk for stroke, and people with cannabis use disorder are at a 50% greater risk of being hospitalized for arrhythmias, according to new research presented at the American Heart Association Scientific Sessions 2019.

An analysis of pooled data on nearly 44,000 participants in a cross-sectional survey showed that, among the 13.6% who reported using marijuana within the last 30 days, the adjusted odds ratio for young-onset stroke (aged 18-44 years), compared with non-users, was 2.75, reported Tarang Parekh, MBBS, a health policy researcher of George Mason University in Fairfax, Va., and colleagues.

In a separate study, a retrospective analysis of national inpatient data showed that people diagnosed with cannabis use disorder – a pathological pattern of impaired control, social impairment, risky behavior or physiological adaptation similar in nature to alcoholism – had a 47%-52% increased likelihood of hospitalization for an arrhythmia, reported Rikinkumar S. Patel, MD, a psychiatry resident at Griffin Memorial Hospital in Norman, Okla.

“As these [cannabis] products become increasingly used across the country, getting clearer, scientifically rigorous data is going to be important as we try to understand the overall health effects of cannabis,” said AHA President Robert Harrington, MD, of Stanford (Calif.) University in a statement.

Currently, use of both medical and recreational marijuana is fully legal in 11 U.S. states and the District of Columbia. Medical marijuana is legal with recreational use decriminalized (or penalties reduced) in 28 other states, and totally illegal in 11 other states, according to employee screening firm DISA Global Solutions.
 

Stroke study

In an oral presentation with simultaneous publication in the AHA journal Stroke, Dr. Parekh and colleagues presented an analysis of pooled data from the Behavioral Risk Factor Surveillance System (BRFSS), a nationally representative cross-sectional survey collected by the Centers for Disease Control and Prevention in 2016 and 2017.

They looked at baseline sociodemographic data and created multivariable logistic regression models with state fixed effects to determine whether marijuana use within the last 30 days was associated with young-onset stroke.

They identified 43,860 participants representing a weighted sample of 35.5 million Americans. Of the sample, 63.3% were male, and 13.6 % of all participants reported using marijuana in the last 30 days.

They found in an unadjusted model that marijuana users had an odds ratio for stroke, compared with nonusers, of 1.59 (P less than.1), and in a model adjusted for demographic factors (gender, race, ethnicity, and education) the OR increased to 1.76 (P less than .05).

When they threw risk behavior into the model (physical activity, body mass index, heavy drinking, and cigarette smoking), they saw that the OR for stroke shot up to 2.75 (P less than .01).

“Physicians should ask patients if they use cannabis and counsel them about its potential stroke risk as part of regular doctor visits,” Dr. Parekh said in a statement.
 

Arrhythmias study

Based on recent studies suggesting that cannabis use may trigger cardiovascular events, Dr. Patel and colleagues studied whether cannabis use disorder may be related to arrhythmias, approaching the question through hospital records.

“The effects of using cannabis are seen within 15 minutes and last for around 3 hours. At lower doses, it is linked to a rapid heartbeat. At higher doses, it is linked to a too-slow heartbeat,” he said in a statement.

Dr. Patel and colleagues conducted a retrospective analysis of the Nationwide Inpatient Sample from 2010-2014, a period during which medical marijuana became legal in several states and recreational marijuana became legal in Colorado and Washington. The sample is a database maintained by the Healthcare Cost and Utilization Project of the U.S. Office of Disease Prevention and Health Promotion.

They identified 570,557 patients aged 15-54 years with a primary diagnosis of arrhythmia, and compared them with a sample of 67,662,082 patients hospitalized with no arrhythmia diagnosed during the same period.

They found a 2.6% incidence of cannabis use disorder among patients hospitalized for arrhythmias. Patients with cannabis use disorder tended to be younger (15- to 24-years-old; OR, 4.23), male (OR, 1.70) and African American (OR, 2.70).

In regression analysis adjusted for demographics and comorbidities, cannabis use disorder was associated with higher odds of arrhythmia hospitalization in young patients, at 1.28 times among 15- to 24-year-olds (95% confidence interval, 1.229-1.346) and 1.52 times for 25- to 34-year-olds (95% CI, 1.469-1.578).

“As medical and recreational cannabis is legalized in many states, it is important to know the difference between therapeutic cannabis dosing for medical purposes and the consequences of cannabis abuse. We urgently need additional research to understand these issues,” Dr. Patel said.

“It’s not proving that there’s a direct link, but it’s raising a suggestion in an observational analysis that [this] indeed might be the case. What that means for clinicians is that, if you’re seeing a patient who is presenting with a symptomatic arrhythmia, adding cannabis usage to your list of questions as you begin to try to understand possible precipitating factors for this arrhythmia seems to be a reasonable thing to do,” Dr. Harrington commented.

Stoners, beware: Young, frequent marijuana users who also smoke cigarettes are at a nearly three-fold increased risk for stroke, and people with cannabis use disorder are at a 50% greater risk of being hospitalized for arrhythmias, according to new research presented at the American Heart Association Scientific Sessions 2019.

An analysis of pooled data on nearly 44,000 participants in a cross-sectional survey showed that, among the 13.6% who reported using marijuana within the last 30 days, the adjusted odds ratio for young-onset stroke (aged 18-44 years), compared with non-users, was 2.75, reported Tarang Parekh, MBBS, a health policy researcher of George Mason University in Fairfax, Va., and colleagues.

In a separate study, a retrospective analysis of national inpatient data showed that people diagnosed with cannabis use disorder – a pathological pattern of impaired control, social impairment, risky behavior or physiological adaptation similar in nature to alcoholism – had a 47%-52% increased likelihood of hospitalization for an arrhythmia, reported Rikinkumar S. Patel, MD, a psychiatry resident at Griffin Memorial Hospital in Norman, Okla.

“As these [cannabis] products become increasingly used across the country, getting clearer, scientifically rigorous data is going to be important as we try to understand the overall health effects of cannabis,” said AHA President Robert Harrington, MD, of Stanford (Calif.) University in a statement.

Currently, use of both medical and recreational marijuana is fully legal in 11 U.S. states and the District of Columbia. Medical marijuana is legal with recreational use decriminalized (or penalties reduced) in 28 other states, and totally illegal in 11 other states, according to employee screening firm DISA Global Solutions.
 

Stroke study

In an oral presentation with simultaneous publication in the AHA journal Stroke, Dr. Parekh and colleagues presented an analysis of pooled data from the Behavioral Risk Factor Surveillance System (BRFSS), a nationally representative cross-sectional survey collected by the Centers for Disease Control and Prevention in 2016 and 2017.

They looked at baseline sociodemographic data and created multivariable logistic regression models with state fixed effects to determine whether marijuana use within the last 30 days was associated with young-onset stroke.

They identified 43,860 participants representing a weighted sample of 35.5 million Americans. Of the sample, 63.3% were male, and 13.6 % of all participants reported using marijuana in the last 30 days.

They found in an unadjusted model that marijuana users had an odds ratio for stroke, compared with nonusers, of 1.59 (P less than.1), and in a model adjusted for demographic factors (gender, race, ethnicity, and education) the OR increased to 1.76 (P less than .05).

When they threw risk behavior into the model (physical activity, body mass index, heavy drinking, and cigarette smoking), they saw that the OR for stroke shot up to 2.75 (P less than .01).

“Physicians should ask patients if they use cannabis and counsel them about its potential stroke risk as part of regular doctor visits,” Dr. Parekh said in a statement.
 

Arrhythmias study

Based on recent studies suggesting that cannabis use may trigger cardiovascular events, Dr. Patel and colleagues studied whether cannabis use disorder may be related to arrhythmias, approaching the question through hospital records.

“The effects of using cannabis are seen within 15 minutes and last for around 3 hours. At lower doses, it is linked to a rapid heartbeat. At higher doses, it is linked to a too-slow heartbeat,” he said in a statement.

Dr. Patel and colleagues conducted a retrospective analysis of the Nationwide Inpatient Sample from 2010-2014, a period during which medical marijuana became legal in several states and recreational marijuana became legal in Colorado and Washington. The sample is a database maintained by the Healthcare Cost and Utilization Project of the U.S. Office of Disease Prevention and Health Promotion.

They identified 570,557 patients aged 15-54 years with a primary diagnosis of arrhythmia, and compared them with a sample of 67,662,082 patients hospitalized with no arrhythmia diagnosed during the same period.

They found a 2.6% incidence of cannabis use disorder among patients hospitalized for arrhythmias. Patients with cannabis use disorder tended to be younger (15- to 24-years-old; OR, 4.23), male (OR, 1.70) and African American (OR, 2.70).

In regression analysis adjusted for demographics and comorbidities, cannabis use disorder was associated with higher odds of arrhythmia hospitalization in young patients, at 1.28 times among 15- to 24-year-olds (95% confidence interval, 1.229-1.346) and 1.52 times for 25- to 34-year-olds (95% CI, 1.469-1.578).

“As medical and recreational cannabis is legalized in many states, it is important to know the difference between therapeutic cannabis dosing for medical purposes and the consequences of cannabis abuse. We urgently need additional research to understand these issues,” Dr. Patel said.

“It’s not proving that there’s a direct link, but it’s raising a suggestion in an observational analysis that [this] indeed might be the case. What that means for clinicians is that, if you’re seeing a patient who is presenting with a symptomatic arrhythmia, adding cannabis usage to your list of questions as you begin to try to understand possible precipitating factors for this arrhythmia seems to be a reasonable thing to do,” Dr. Harrington commented.

Stoners, beware: Young, frequent marijuana users who also smoke cigarettes are at a nearly three-fold increased risk for stroke, and people with cannabis use disorder are at a 50% greater risk of being hospitalized for arrhythmias, according to new research presented at the American Heart Association Scientific Sessions 2019.

An analysis of pooled data on nearly 44,000 participants in a cross-sectional survey showed that, among the 13.6% who reported using marijuana within the last 30 days, the adjusted odds ratio for young-onset stroke (aged 18-44 years), compared with non-users, was 2.75, reported Tarang Parekh, MBBS, a health policy researcher of George Mason University in Fairfax, Va., and colleagues.

In a separate study, a retrospective analysis of national inpatient data showed that people diagnosed with cannabis use disorder – a pathological pattern of impaired control, social impairment, risky behavior or physiological adaptation similar in nature to alcoholism – had a 47%-52% increased likelihood of hospitalization for an arrhythmia, reported Rikinkumar S. Patel, MD, a psychiatry resident at Griffin Memorial Hospital in Norman, Okla.

“As these [cannabis] products become increasingly used across the country, getting clearer, scientifically rigorous data is going to be important as we try to understand the overall health effects of cannabis,” said AHA President Robert Harrington, MD, of Stanford (Calif.) University in a statement.

Currently, use of both medical and recreational marijuana is fully legal in 11 U.S. states and the District of Columbia. Medical marijuana is legal with recreational use decriminalized (or penalties reduced) in 28 other states, and totally illegal in 11 other states, according to employee screening firm DISA Global Solutions.
 

Stroke study

In an oral presentation with simultaneous publication in the AHA journal Stroke, Dr. Parekh and colleagues presented an analysis of pooled data from the Behavioral Risk Factor Surveillance System (BRFSS), a nationally representative cross-sectional survey collected by the Centers for Disease Control and Prevention in 2016 and 2017.

They looked at baseline sociodemographic data and created multivariable logistic regression models with state fixed effects to determine whether marijuana use within the last 30 days was associated with young-onset stroke.

They identified 43,860 participants representing a weighted sample of 35.5 million Americans. Of the sample, 63.3% were male, and 13.6 % of all participants reported using marijuana in the last 30 days.

They found in an unadjusted model that marijuana users had an odds ratio for stroke, compared with nonusers, of 1.59 (P less than.1), and in a model adjusted for demographic factors (gender, race, ethnicity, and education) the OR increased to 1.76 (P less than .05).

When they threw risk behavior into the model (physical activity, body mass index, heavy drinking, and cigarette smoking), they saw that the OR for stroke shot up to 2.75 (P less than .01).

“Physicians should ask patients if they use cannabis and counsel them about its potential stroke risk as part of regular doctor visits,” Dr. Parekh said in a statement.
 

Arrhythmias study

Based on recent studies suggesting that cannabis use may trigger cardiovascular events, Dr. Patel and colleagues studied whether cannabis use disorder may be related to arrhythmias, approaching the question through hospital records.

“The effects of using cannabis are seen within 15 minutes and last for around 3 hours. At lower doses, it is linked to a rapid heartbeat. At higher doses, it is linked to a too-slow heartbeat,” he said in a statement.

Dr. Patel and colleagues conducted a retrospective analysis of the Nationwide Inpatient Sample from 2010-2014, a period during which medical marijuana became legal in several states and recreational marijuana became legal in Colorado and Washington. The sample is a database maintained by the Healthcare Cost and Utilization Project of the U.S. Office of Disease Prevention and Health Promotion.

They identified 570,557 patients aged 15-54 years with a primary diagnosis of arrhythmia, and compared them with a sample of 67,662,082 patients hospitalized with no arrhythmia diagnosed during the same period.

They found a 2.6% incidence of cannabis use disorder among patients hospitalized for arrhythmias. Patients with cannabis use disorder tended to be younger (15- to 24-years-old; OR, 4.23), male (OR, 1.70) and African American (OR, 2.70).

In regression analysis adjusted for demographics and comorbidities, cannabis use disorder was associated with higher odds of arrhythmia hospitalization in young patients, at 1.28 times among 15- to 24-year-olds (95% confidence interval, 1.229-1.346) and 1.52 times for 25- to 34-year-olds (95% CI, 1.469-1.578).

“As medical and recreational cannabis is legalized in many states, it is important to know the difference between therapeutic cannabis dosing for medical purposes and the consequences of cannabis abuse. We urgently need additional research to understand these issues,” Dr. Patel said.

“It’s not proving that there’s a direct link, but it’s raising a suggestion in an observational analysis that [this] indeed might be the case. What that means for clinicians is that, if you’re seeing a patient who is presenting with a symptomatic arrhythmia, adding cannabis usage to your list of questions as you begin to try to understand possible precipitating factors for this arrhythmia seems to be a reasonable thing to do,” Dr. Harrington commented.

WASHINGTON – Although severe, community-acquired sepsis in previously healthy U.S. adults is relatively uncommon, it occurs often enough to strike about 40,000 people annually, and when previously healthy people are hospitalized for severe sepsis, their rate of in-hospital mortality was double the rate in people with one or more comorbidities who have severe, community-acquired sepsis, based on a review of almost 7 million Americans hospitalized for sepsis.

The findings “underscore the importance of improving public awareness of sepsis and emphasizing early sepsis recognition and treatment in all patients,” including those without comorbidities, Chanu Rhee, MD, said at an annual scientific meeting on infectious diseases. He hypothesized that the increased sepsis mortality among previously healthy patients may have stemmed from factors such as delayed sepsis recognition resulting in hospitalization at a more advanced stage and less aggressive management.

In addition, “the findings provide context for high-profile reports about sepsis death in previously healthy people,” said Dr. Rhee, an infectious diseases and critical care physician at Brigham and Women’s Hospital in Boston. Dr. Rhee and associates found that, among patients hospitalized with what the researchers defined as “community-acquired” sepsis, 3% were judged previously healthy by having no identified major or minor comorbidity or pregnancy at the time of hospitalization, a percentage that – while small – still translates into roughly 40,000 such cases annually in the United States. That helps explain why every so often a headline appears about a famous person who died suddenly and unexpectedly from sepsis, he noted.

The study used data collected on hospitalized U.S. patients in the Cerner Health Facts, HCA Healthcare, and Institute for Health Metrics and Evaluation databases, which included about 6.7 million people total including 337,983 identified as having community-acquired sepsis, defined as patients who met the criteria for adult sepsis advanced by the Centers for Disease Control and Prevention within 2 days of their hospital admission. The researchers looked further into the hospital records of these patients and divided them into patients with one or more major comorbidities (96% of the cohort), patients who were pregnant or had a “minor” comorbidity such as a lipid disorder, benign neoplasm, or obesity (1% of the study group), or those with no chronic comorbidity (3%; the subgroup the researchers deemed previously healthy).

In a multivariate analysis that adjusted for patients’ age, sex, race, infection site, and illness severity at the time of hospital admission the researchers found that the rate of in-hospital death among the previously healthy patients was exactly twice the rate of those who had at least one major chronic comorbidity, Dr. Rhee reported. Differences in the treatment received by the previously-healthy patients or in their medical status compared with patients with a major comorbidity suggested that the previously health patients were sicker. They had a higher rate of mechanical ventilation, 30%, compared with about 18% for those with a comorbidity; a higher rate of acute kidney injury, about 43% in those previously healthy and 28% in those with a comorbidity; and a higher percentage had an elevated lactate level, about 41% among the previously healthy patients and about 22% among those with a comorbidity.

[email protected]

SOURCE: Alrawashdeh M et al. Open Forum Infect Dis. 2019 Oct 23;6. Abstract 891.

WASHINGTON – Although severe, community-acquired sepsis in previously healthy U.S. adults is relatively uncommon, it occurs often enough to strike about 40,000 people annually, and when previously healthy people are hospitalized for severe sepsis, their rate of in-hospital mortality was double the rate in people with one or more comorbidities who have severe, community-acquired sepsis, based on a review of almost 7 million Americans hospitalized for sepsis.

The findings “underscore the importance of improving public awareness of sepsis and emphasizing early sepsis recognition and treatment in all patients,” including those without comorbidities, Chanu Rhee, MD, said at an annual scientific meeting on infectious diseases. He hypothesized that the increased sepsis mortality among previously healthy patients may have stemmed from factors such as delayed sepsis recognition resulting in hospitalization at a more advanced stage and less aggressive management.

In addition, “the findings provide context for high-profile reports about sepsis death in previously healthy people,” said Dr. Rhee, an infectious diseases and critical care physician at Brigham and Women’s Hospital in Boston. Dr. Rhee and associates found that, among patients hospitalized with what the researchers defined as “community-acquired” sepsis, 3% were judged previously healthy by having no identified major or minor comorbidity or pregnancy at the time of hospitalization, a percentage that – while small – still translates into roughly 40,000 such cases annually in the United States. That helps explain why every so often a headline appears about a famous person who died suddenly and unexpectedly from sepsis, he noted.

The study used data collected on hospitalized U.S. patients in the Cerner Health Facts, HCA Healthcare, and Institute for Health Metrics and Evaluation databases, which included about 6.7 million people total including 337,983 identified as having community-acquired sepsis, defined as patients who met the criteria for adult sepsis advanced by the Centers for Disease Control and Prevention within 2 days of their hospital admission. The researchers looked further into the hospital records of these patients and divided them into patients with one or more major comorbidities (96% of the cohort), patients who were pregnant or had a “minor” comorbidity such as a lipid disorder, benign neoplasm, or obesity (1% of the study group), or those with no chronic comorbidity (3%; the subgroup the researchers deemed previously healthy).

In a multivariate analysis that adjusted for patients’ age, sex, race, infection site, and illness severity at the time of hospital admission the researchers found that the rate of in-hospital death among the previously healthy patients was exactly twice the rate of those who had at least one major chronic comorbidity, Dr. Rhee reported. Differences in the treatment received by the previously-healthy patients or in their medical status compared with patients with a major comorbidity suggested that the previously health patients were sicker. They had a higher rate of mechanical ventilation, 30%, compared with about 18% for those with a comorbidity; a higher rate of acute kidney injury, about 43% in those previously healthy and 28% in those with a comorbidity; and a higher percentage had an elevated lactate level, about 41% among the previously healthy patients and about 22% among those with a comorbidity.

[email protected]

SOURCE: Alrawashdeh M et al. Open Forum Infect Dis. 2019 Oct 23;6. Abstract 891.

WASHINGTON – Although severe, community-acquired sepsis in previously healthy U.S. adults is relatively uncommon, it occurs often enough to strike about 40,000 people annually, and when previously healthy people are hospitalized for severe sepsis, their rate of in-hospital mortality was double the rate in people with one or more comorbidities who have severe, community-acquired sepsis, based on a review of almost 7 million Americans hospitalized for sepsis.

The findings “underscore the importance of improving public awareness of sepsis and emphasizing early sepsis recognition and treatment in all patients,” including those without comorbidities, Chanu Rhee, MD, said at an annual scientific meeting on infectious diseases. He hypothesized that the increased sepsis mortality among previously healthy patients may have stemmed from factors such as delayed sepsis recognition resulting in hospitalization at a more advanced stage and less aggressive management.

In addition, “the findings provide context for high-profile reports about sepsis death in previously healthy people,” said Dr. Rhee, an infectious diseases and critical care physician at Brigham and Women’s Hospital in Boston. Dr. Rhee and associates found that, among patients hospitalized with what the researchers defined as “community-acquired” sepsis, 3% were judged previously healthy by having no identified major or minor comorbidity or pregnancy at the time of hospitalization, a percentage that – while small – still translates into roughly 40,000 such cases annually in the United States. That helps explain why every so often a headline appears about a famous person who died suddenly and unexpectedly from sepsis, he noted.

The study used data collected on hospitalized U.S. patients in the Cerner Health Facts, HCA Healthcare, and Institute for Health Metrics and Evaluation databases, which included about 6.7 million people total including 337,983 identified as having community-acquired sepsis, defined as patients who met the criteria for adult sepsis advanced by the Centers for Disease Control and Prevention within 2 days of their hospital admission. The researchers looked further into the hospital records of these patients and divided them into patients with one or more major comorbidities (96% of the cohort), patients who were pregnant or had a “minor” comorbidity such as a lipid disorder, benign neoplasm, or obesity (1% of the study group), or those with no chronic comorbidity (3%; the subgroup the researchers deemed previously healthy).

In a multivariate analysis that adjusted for patients’ age, sex, race, infection site, and illness severity at the time of hospital admission the researchers found that the rate of in-hospital death among the previously healthy patients was exactly twice the rate of those who had at least one major chronic comorbidity, Dr. Rhee reported. Differences in the treatment received by the previously-healthy patients or in their medical status compared with patients with a major comorbidity suggested that the previously health patients were sicker. They had a higher rate of mechanical ventilation, 30%, compared with about 18% for those with a comorbidity; a higher rate of acute kidney injury, about 43% in those previously healthy and 28% in those with a comorbidity; and a higher percentage had an elevated lactate level, about 41% among the previously healthy patients and about 22% among those with a comorbidity.

[email protected]

SOURCE: Alrawashdeh M et al. Open Forum Infect Dis. 2019 Oct 23;6. Abstract 891.

A 50-year-old man with acute myeloid leukemia (AML) with a complex karyotype was admitted to the hospital with several days of dull, left-sided abdominal pain. His most recent bone marrow biopsy showed 30% blasts, and immunophenotyping was suggestive of persistent AML (CD13+, CD34+, CD117+, CD33+, CD7+, MPO–). He was on treatment with venetoclax and cytarabine after induction therapy had failed.

On admission, his heart rate was 101 beats per minute and his blood pressure was 122/85 mm Hg. Abdominal examination revealed mild distention, hepatomegaly, and previously known massive splenomegaly, with the splenic tip extending to the umbilicus, and mild tenderness.

Results of laboratory testing revealed persistent pancytopenia:

• Hemoglobin level 6.8 g/dL (reference range 13.0–17.0)
• Total white blood cell count 0.8 × 10⁹/L (4.5–11.0)
• Platelet count 8 × 10⁹/L (150–400).

The next day, he developed severe, acute-onset left-sided abdominal pain. A check of vital signs showed worsening sinus tachycardia at 132 beats per minute and a drop in blood pressure to 90/56 mm Hg. He had worsening diffuse abdominal tenderness with sluggish bowel sounds. His hemoglobin concentration was 6.4 g/dL and platelet count 12 × 10⁹/L.

He received supportive transfusions of blood products. Surgical exploration was deemed risky, given his overall condition and severe thrombocytopenia. Splenic angiography showed no evidence of pseudoaneurysm or focal contrast extravasation. He underwent empiric embolization of the midsplenic artery, after which his hemodynamic status stabilized. He died 4 weeks later of acute respiratory failure from pneumonia.

SPLENIC RUPTURE IN AML

Atraumatic splenic rupture is rare but potentially life-threatening, especially if the diagnosis is delayed. Conditions that can cause splenomegaly and predispose to rupture include infection (infectious mononucleosis, malaria), malignant hematologic disorders (leukemia, lymphoma), other neoplasms, and amyloidosis.¹

The literature includes a few reports of splenic rupture in patients with AML.^2–4 The proposed mechanisms include bleeding from infarction sites or tumor foci, dysregulated hemostasis, and leukostasis.

The classic presentation of splenic rupture is acute-onset left-sided abdominal pain associated with hypotension and decreasing hemoglobin levels. CT of the abdomen is confirmatory, and resuscitation with crystalloids and blood products is a vital initial step in management. Choice of treatment depends on the patient’s surgical risk and hemodynamic status; options include conservative medical management, splenic artery embolization, and exploratory laparotomy.

In patients with AML and splenomegaly presenting with acute abdominal pain, clinicians need to be aware of this potential hematologic emergency.

A 50-year-old man with acute myeloid leukemia (AML) with a complex karyotype was admitted to the hospital with several days of dull, left-sided abdominal pain. His most recent bone marrow biopsy showed 30% blasts, and immunophenotyping was suggestive of persistent AML (CD13+, CD34+, CD117+, CD33+, CD7+, MPO–). He was on treatment with venetoclax and cytarabine after induction therapy had failed.

On admission, his heart rate was 101 beats per minute and his blood pressure was 122/85 mm Hg. Abdominal examination revealed mild distention, hepatomegaly, and previously known massive splenomegaly, with the splenic tip extending to the umbilicus, and mild tenderness.

Results of laboratory testing revealed persistent pancytopenia:

• Hemoglobin level 6.8 g/dL (reference range 13.0–17.0)
• Total white blood cell count 0.8 × 10⁹/L (4.5–11.0)
• Platelet count 8 × 10⁹/L (150–400).

The next day, he developed severe, acute-onset left-sided abdominal pain. A check of vital signs showed worsening sinus tachycardia at 132 beats per minute and a drop in blood pressure to 90/56 mm Hg. He had worsening diffuse abdominal tenderness with sluggish bowel sounds. His hemoglobin concentration was 6.4 g/dL and platelet count 12 × 10⁹/L.

He received supportive transfusions of blood products. Surgical exploration was deemed risky, given his overall condition and severe thrombocytopenia. Splenic angiography showed no evidence of pseudoaneurysm or focal contrast extravasation. He underwent empiric embolization of the midsplenic artery, after which his hemodynamic status stabilized. He died 4 weeks later of acute respiratory failure from pneumonia.

SPLENIC RUPTURE IN AML

Atraumatic splenic rupture is rare but potentially life-threatening, especially if the diagnosis is delayed. Conditions that can cause splenomegaly and predispose to rupture include infection (infectious mononucleosis, malaria), malignant hematologic disorders (leukemia, lymphoma), other neoplasms, and amyloidosis.¹

The literature includes a few reports of splenic rupture in patients with AML.^2–4 The proposed mechanisms include bleeding from infarction sites or tumor foci, dysregulated hemostasis, and leukostasis.

The classic presentation of splenic rupture is acute-onset left-sided abdominal pain associated with hypotension and decreasing hemoglobin levels. CT of the abdomen is confirmatory, and resuscitation with crystalloids and blood products is a vital initial step in management. Choice of treatment depends on the patient’s surgical risk and hemodynamic status; options include conservative medical management, splenic artery embolization, and exploratory laparotomy.

In patients with AML and splenomegaly presenting with acute abdominal pain, clinicians need to be aware of this potential hematologic emergency.

A 50-year-old man with acute myeloid leukemia (AML) with a complex karyotype was admitted to the hospital with several days of dull, left-sided abdominal pain. His most recent bone marrow biopsy showed 30% blasts, and immunophenotyping was suggestive of persistent AML (CD13+, CD34+, CD117+, CD33+, CD7+, MPO–). He was on treatment with venetoclax and cytarabine after induction therapy had failed.

On admission, his heart rate was 101 beats per minute and his blood pressure was 122/85 mm Hg. Abdominal examination revealed mild distention, hepatomegaly, and previously known massive splenomegaly, with the splenic tip extending to the umbilicus, and mild tenderness.

Results of laboratory testing revealed persistent pancytopenia:

• Hemoglobin level 6.8 g/dL (reference range 13.0–17.0)
• Total white blood cell count 0.8 × 10⁹/L (4.5–11.0)
• Platelet count 8 × 10⁹/L (150–400).

The next day, he developed severe, acute-onset left-sided abdominal pain. A check of vital signs showed worsening sinus tachycardia at 132 beats per minute and a drop in blood pressure to 90/56 mm Hg. He had worsening diffuse abdominal tenderness with sluggish bowel sounds. His hemoglobin concentration was 6.4 g/dL and platelet count 12 × 10⁹/L.

He received supportive transfusions of blood products. Surgical exploration was deemed risky, given his overall condition and severe thrombocytopenia. Splenic angiography showed no evidence of pseudoaneurysm or focal contrast extravasation. He underwent empiric embolization of the midsplenic artery, after which his hemodynamic status stabilized. He died 4 weeks later of acute respiratory failure from pneumonia.

SPLENIC RUPTURE IN AML

Atraumatic splenic rupture is rare but potentially life-threatening, especially if the diagnosis is delayed. Conditions that can cause splenomegaly and predispose to rupture include infection (infectious mononucleosis, malaria), malignant hematologic disorders (leukemia, lymphoma), other neoplasms, and amyloidosis.¹

The literature includes a few reports of splenic rupture in patients with AML.^2–4 The proposed mechanisms include bleeding from infarction sites or tumor foci, dysregulated hemostasis, and leukostasis.

The classic presentation of splenic rupture is acute-onset left-sided abdominal pain associated with hypotension and decreasing hemoglobin levels. CT of the abdomen is confirmatory, and resuscitation with crystalloids and blood products is a vital initial step in management. Choice of treatment depends on the patient’s surgical risk and hemodynamic status; options include conservative medical management, splenic artery embolization, and exploratory laparotomy.

In patients with AML and splenomegaly presenting with acute abdominal pain, clinicians need to be aware of this potential hematologic emergency.

A morbidly obese 54-year-old woman presented to the emergency department after experiencing generalized abdominal pain for 3 days. She rated the pain as 5 on a scale of 10 and described it as dull, cramping, waxing and waning, not radiating, and not relieved with changes of position—in fact, not alleviated by anything she had tried. Her pain was associated with nausea and 1 episode of vomiting. She also experienced constipation before the onset of pain.

She denied recent trauma, recent travel, diarrhea, fevers, weakness, shortness of breath, chest pain, other muscle pains, or recent changes in diet. She also denied having this pain in the past. She said she had unintentionally lost some weight but was not certain how much. She denied tobacco, alcohol, or illicit drug use. She had no history of surgery.

Her medical history included hypertension, anemia, and uterine fibroids. Her current medications included losartan, hydrochlorothiazide, and albuterol. She had no family history of significant disease.

INITIAL EVALUATION AND MANAGEMENT

On admission, her temperature was 97.8°F (36.6°C), heart rate 100 beats per minute, blood pressure 136/64 mm Hg, respiratory rate 18 breaths per minute, oxygen saturation 97% on room air, weight 130.6 kg, and body mass index 35 kg/m².

She was alert and oriented to person, place, and time. She was in mild discomfort but no distress. Her lungs were clear to auscultation, with no wheezing or crackles. Heart rate and rhythm were regular, with no extra heart sounds or murmurs. Bowel sounds were normal in all 4 quadrants, with tenderness to palpation of the epigastric area, but with no guarding or rebound tenderness.

Laboratory test results

Notable results of blood testing at presentation were as follows:

• Hemoglobin 8.2 g/dL (reference range 12.3–15.3)
• Hematocrit 26% (41–50)
• Mean corpuscular volume 107 fL (80–100)
• Blood urea nitrogen 33 mg/dL (8–21); 6 months earlier it was 16
• Serum creatinine 3.6 mg/dL (0.58–0.96); 6 months earlier, it was 0.75
• Albumin 3.3 g/dL (3.5–5)
• Calcium 18.4 mg/dL (8.4–10.2); 6 months earlier, it was 9.6
• Corrected calcium 19 mg/dL.

Findings on imaging, electrocardiography

Chest radiography showed no acute cardiopulmonary abnormalities. Abdominal computed tomography without contrast showed no abnormalities within the pancreas and no evidence of inflammation or obstruction. Electrocardiography showed sinus tachycardia.

DIFFERENTIAL DIAGNOSIS

1. Which is the most likely cause of this patient’s symptoms?

• Primary hyperparathyroidism
• Malignancy
• Her drug therapy
• Familial hypercalcemic hypocalciuria

In total, her laboratory results were consistent with macrocytic anemia, severe hypercalcemia, and acute kidney injury, and she had generalized symptoms.

Primary hyperparathyroidism

A main cause of hypercalcemia is primary hyperparathyroidism, and this needs to be ruled out. Benign adenomas are the most common cause of primary hyperparathyroidism, and a risk factor for benign adenoma is exposure to therapeutic levels of radiation.³

In hyperparathyroidism, there is an increased secretion of parathyroid hormone (PTH), which has multiple effects including increased reabsorption of calcium from the urine, increased excretion of phosphate, and increased expression of 1,25-hydroxyvitamin D hydroxylase to activate vitamin D. PTH also stimulates osteoclasts to increase their expression of receptor activator of nuclear factor kappa B ligand (RANKL), which has a downstream effect on osteoclast precursors to cause bone reabsorption.³

Inherited primary hyperparathyroidism tends to present at a younger age, with multiple overactive parathyroid glands.³ Given our patient’s age, inherited primary hyparathyroidism is thus less likely.

The probability that malignancy is causing the hypercalcemia increases with calcium levels greater than 13 mg/dL. Epidemiologically, in hospitalized patients with hypercalcemia, the source tends to be malignancy.⁴ Typically, patients who develop hypercalcemia from malignancy have a worse prognosis.⁵

Solid tumors and leukemias can cause hypercalcemia. The mechanisms include humoral factors secreted by the malignancy, local osteolysis due to tumor invasion of bone, and excessive absorption of calcium due to excess vitamin D produced by malignancies.⁵ The cancers that most frequently cause an increase in calcium resorption are lung cancer, renal cancer, breast cancer, and multiple myeloma.¹

Solid tumors with no bone metastasis and non-Hodgkin lymphoma that release PTH-related protein (PTHrP) cause humoral hypercalcemia in malignancy. The patient is typically in an advanced stage of disease. PTHrP increases serum calcium levels by decreasing the kidney’s ability to excrete calcium and by increasing bone turnover. It has no effect on intestinal absorption because of its inability to stimulate activated vitamin D₃. Thus, the increase in systemic calcium comes directly from breakdown of bone and inability to excrete the excess.

PTHrP has a unique role in breast cancer: it is released locally in areas where cancer cells have metastasized to bone, but it does not cause a systemic effect. Bone resorption occurs in areas of metastasis and results from an increase in expression of RANKL and RANK in osteoclasts in response to the effects of PTHrP, leading to an increase in the production of osteoclastic cells.¹

Tamoxifen, an endocrine therapy often used in breast cancer, also causes a release of bone-reabsorbing factors from tumor cells, which can partially contribute to hypercal­cemia.⁵

Myeloma cells secrete RANKL, which stimulates osteoclastic activity, and they also  release interleukin 6 (IL-6) and activating macrophage inflammatory protein alpha. Serum testing usually shows low or normal intact PTH, PTHrP, and 1,25-dihydroxyvitamin D.¹

Patients with multiple myeloma have a worse prognosis if they have a high red blood cell distribution width, a condition shown to correlate with malnutrition, leading to deficiencies in vitamin B₁₂ and to poor response to treatment.⁶ Up to 14% of patients with multiple myeloma have vitamin B₁₂ deficiency.⁷

Our patient’s recent weight loss and severe hypercalcemia raise suspicion of malignancy. Further, her obesity makes proper routine breast examination difficult and thus increases the chance of undiagnosed breast cancer.⁸ Her decrease in renal function and her anemia complicated by hypercalcemia also raise suspicion of multiple myeloma.

Hypercalcemia due to drug therapy

Thiazide diuretics, lithium, teriparatide, and vitamin A in excessive amounts can raise the serum calcium concentration.⁵ Our patient was taking a thiazide for hypertension, but her extremely high calcium level places drug-induced hypercalcemia as the sole cause lower on the differential list.

Familial hypercalcemic hypocalciuria

Familial hypercalcemic hypocalciuria is a rare autosomal-dominant cause of hypercalcemia in which the ability of the body (and especially the kidneys) to sense levels of calcium is impaired, leading to a decrease in excretion of calcium in the urine.³ Very high calcium levels are rare in hypercalcemic hypocalciuria.³ In our patient with a corrected calcium concentration of nearly 19 mg/dL, familial hypercalcemic hypocalciuria is very unlikely to be the cause of the hypercalcemia.

WHAT ARE THE NEXT STEPS IN THE WORKUP?

As hypercalcemia has been confirmed, the intact PTH level should be checked to determine whether the patient’s condition is PTH-mediated. If the PTH level is in the upper range of normal or is minimally elevated, primary hyperparathyroidism is likely. Elevated PTH confirms primary hyperparathyroidism. A low-normal or low intact PTH confirms a non-PTH-mediated process, and once this is confirmed, PTHrP levels should be checked. An elevated PTHrP suggests humoral hypercalcemia of malignancy. Serum protein electrophoresis, urine protein electrophoresis, and a serum light chain assay should be performed to rule out multiple myeloma.

Vitamin D toxicity is associated with high concentrations of 1,25-dihydroxyvitamin D and 25-hydroxyvitamin D metabolites. These levels should be checked in this patient.

Other disorders that cause hypercalcemia are vitamin A toxicity and hyperthyroidism, so vitamin A and thyroid-stimulating hormone levels should also be checked.⁵

CASE CONTINUED

After further questioning, the patient said that she had had lower back pain about 1 to 2 weeks before coming to the emergency room; her primary care doctor had said the pain was likely from muscle strain. The pain had almost resolved but was still present.

The results of further laboratory testing were as follows:

• Serum PTH 11 pg/mL (15–65)
• PTHrP 3.4 pmol/L (< 2.0)
• Protein electrophoresis showed a monoclonal (M) spike of 0.2 g/dL (0)
• Activated vitamin D < 5 ng/mL (19.9–79.3)
• Vitamin A 7.2 mg/dL (33.1–100)
• Vitamin B₁₂ 194 pg/mL (239–931)
• Thyroid-stimulating hormone 1.21 mIU/ L (0.47–4.68
• Free thyroxine 1.27 ng/dL (0.78–2.19)
• Iron 103 µg/dL (37–170)
• Total iron-binding capacity 335 µg/dL (265–497)
• Transferrin 248 mg/dL (206–381)
• Ferritin 66 ng/mL (11.1–264)
• Urine protein (random) 100 mg/dL (0–20)
• Urine microalbumin (random) 5.9 mg/dL (0–1.6)
• Urine creatinine clearance 88.5 mL/min (88–128)
• Urine albumin-creatinine ratio 66.66 mg/g (< 30).

A nuclear bone scan showed increased bone uptake in the hip and both shoulders, consistent with arthritis, and increased activity in 2 of the lower left ribs, associated with rib fractures secondary to lytic lesions. A skeletal survey at a later date showed multiple well-circumscribed “punched-out” lytic lesions in both forearms and both femurs.

2. What should be the next step in this patient’s management?

• Intravenous (IV) fluids
• Calcitonin
• Bisphosphonate treatment
• Denosumab
• Hemodialysis

Initial treatment of severe hypercalcemia includes the following:

Start IV isotonic fluids at a rate of 150 mL/h (if the patient is making urine) to maintain urine output at more than 100 mL/h. Closely monitor urine output.

Give calcitonin 4 IU/kg in combination with IV fluids to reduce calcium levels within the first 12 to 48 hours of treatment.

Give a bisphosphonate, eg, zoledronic acid 4 mg over 15 minutes, or pamidronate 60 to 90 mg over 2 hours. Zoledronic acid is preferred in malignancy-induced hypercal­cemia because it is more potent. Doses should be adjusted in patients with renal failure.

Give denosumab if hypercalcemia is refractory to bisphosphonates, or when bisphosphonates cannot be used in renal failure.⁹

Hemodialysis is performed in patients who have significant neurologic symptoms irrespective of acute renal insufficiency.

Our patient was started on 0.9% sodium chloride at a rate of 150 mL/h for severe hypercalcemia. Zoledronic acid 4 mg IV was given once. These measures lowered her calcium level and lessened her acute kidney injury.

ADDITIONAL FINDINGS

Urine testing was positive for Bence Jones protein. Immune electrophoresis, performed because of suspicion of multiple myeloma, showed an elevated level of kappa light chains at 806.7 mg/dL (0.33–1.94) and normal lambda light chains at 0.62 mg/dL (0.57–2.63). The immunoglobulin G level was low at 496 mg/dL (610–1,660). In patients with severe hypercalcemia, these results point to a diagnosis of malignancy. Bone marrow aspiration study showed greater than 10% plasma cells, confirming multiple myeloma.

MULTIPLE MYELOMA

The diagnosis of multiple myeloma is based in part on the presence of 10% or more of clonal bone marrow plasma cells¹⁰ and of specific end-organ damage (anemia, hypercalcemia, renal insufficiency, or bone lesions).⁹

Bone marrow clonality can be shown by the ratio of kappa to lambda light chains as  detected with immunohistochemistry, immunofluorescence, or flow cytometry.11 The normal ratio is 0.26 to 1.65 for a patient with normal kidney function. In this patient, however, the ratio was 1,301.08 (806.67 kappa to 0.62 lambda), which was extremely out of range. The patient’s bone marrow biopsy results revealed the presence of 15% clonal bone marrow plasma cells.

Multiple myeloma causes osteolytic lesions through increased activation of osteoclast activating factor that stimulates the growth of osteoclast precursors. At the same time, it inhibits osteoblast formation via multiple pathways, including the action of sclerostin.¹¹ Our patient had lytic lesions in 2 left lower ribs and in both forearms and femurs.

Hypercalcemia in multiple myeloma is attributed to 2 main factors: bone breakdown and macrophage overactivation. Multiple myeloma cells increase the release of macrophage inflammatory protein 1-alpha and tumor necrosis factor, which are inflammatory proteins that cause an increase in macrophages, which cause an increase in calcitriol.¹¹ As noted, our patient’s calcium level at presentation was 18.4 mg/dL uncorrected and 18.96 mg/dL corrected.

Cast nephropathy can occur in the distal tubules from the increased free light chains circulating and combining with Tamm-Horsfall protein, which in turn causes obstruction and local inflammation,¹² leading to a rise in creatinine levels and resulting in acute kidney injury,¹² as in our patient.

TREATMENT CONSIDERATIONS IN MULTIPLE MYELOMA

Our patient was referred to an oncologist for management.

In the management of multiple myeloma, the patient’s quality of life needs to be considered. With the development of new agents to combat the damages of the osteolytic effects, there is hope for improving quality of life.^13,14 New agents under study include anabolic agents such as antisclerostin and anti-Dickkopf-1, which promote osteoblastogenesis, leading to bone formation, with the possibility of repairing existing damage.¹⁵

TAKE-HOME POINTS

• If hypercalcemia is mild to moderate, consider primary hyperparathyroidism.
• Identify patients with severe symptoms of hypercalcemia such as volume depletion, acute kidney injury, arrhythmia, or seizures.
• Confirm severe cases of hypercalcemia and treat severe cases effectively.
• Severe hypercalcemia may need further investigation into a potential underlying malignancy.

A morbidly obese 54-year-old woman presented to the emergency department after experiencing generalized abdominal pain for 3 days. She rated the pain as 5 on a scale of 10 and described it as dull, cramping, waxing and waning, not radiating, and not relieved with changes of position—in fact, not alleviated by anything she had tried. Her pain was associated with nausea and 1 episode of vomiting. She also experienced constipation before the onset of pain.

She denied recent trauma, recent travel, diarrhea, fevers, weakness, shortness of breath, chest pain, other muscle pains, or recent changes in diet. She also denied having this pain in the past. She said she had unintentionally lost some weight but was not certain how much. She denied tobacco, alcohol, or illicit drug use. She had no history of surgery.

Her medical history included hypertension, anemia, and uterine fibroids. Her current medications included losartan, hydrochlorothiazide, and albuterol. She had no family history of significant disease.

INITIAL EVALUATION AND MANAGEMENT

On admission, her temperature was 97.8°F (36.6°C), heart rate 100 beats per minute, blood pressure 136/64 mm Hg, respiratory rate 18 breaths per minute, oxygen saturation 97% on room air, weight 130.6 kg, and body mass index 35 kg/m².

She was alert and oriented to person, place, and time. She was in mild discomfort but no distress. Her lungs were clear to auscultation, with no wheezing or crackles. Heart rate and rhythm were regular, with no extra heart sounds or murmurs. Bowel sounds were normal in all 4 quadrants, with tenderness to palpation of the epigastric area, but with no guarding or rebound tenderness.

Laboratory test results

Notable results of blood testing at presentation were as follows:

• Hemoglobin 8.2 g/dL (reference range 12.3–15.3)
• Hematocrit 26% (41–50)
• Mean corpuscular volume 107 fL (80–100)
• Blood urea nitrogen 33 mg/dL (8–21); 6 months earlier it was 16
• Serum creatinine 3.6 mg/dL (0.58–0.96); 6 months earlier, it was 0.75
• Albumin 3.3 g/dL (3.5–5)
• Calcium 18.4 mg/dL (8.4–10.2); 6 months earlier, it was 9.6
• Corrected calcium 19 mg/dL.

Findings on imaging, electrocardiography

Chest radiography showed no acute cardiopulmonary abnormalities. Abdominal computed tomography without contrast showed no abnormalities within the pancreas and no evidence of inflammation or obstruction. Electrocardiography showed sinus tachycardia.

DIFFERENTIAL DIAGNOSIS

1. Which is the most likely cause of this patient’s symptoms?

• Primary hyperparathyroidism
• Malignancy
• Her drug therapy
• Familial hypercalcemic hypocalciuria

In total, her laboratory results were consistent with macrocytic anemia, severe hypercalcemia, and acute kidney injury, and she had generalized symptoms.

Primary hyperparathyroidism

A main cause of hypercalcemia is primary hyperparathyroidism, and this needs to be ruled out. Benign adenomas are the most common cause of primary hyperparathyroidism, and a risk factor for benign adenoma is exposure to therapeutic levels of radiation.³

In hyperparathyroidism, there is an increased secretion of parathyroid hormone (PTH), which has multiple effects including increased reabsorption of calcium from the urine, increased excretion of phosphate, and increased expression of 1,25-hydroxyvitamin D hydroxylase to activate vitamin D. PTH also stimulates osteoclasts to increase their expression of receptor activator of nuclear factor kappa B ligand (RANKL), which has a downstream effect on osteoclast precursors to cause bone reabsorption.³

Inherited primary hyperparathyroidism tends to present at a younger age, with multiple overactive parathyroid glands.³ Given our patient’s age, inherited primary hyparathyroidism is thus less likely.

The probability that malignancy is causing the hypercalcemia increases with calcium levels greater than 13 mg/dL. Epidemiologically, in hospitalized patients with hypercalcemia, the source tends to be malignancy.⁴ Typically, patients who develop hypercalcemia from malignancy have a worse prognosis.⁵

Solid tumors and leukemias can cause hypercalcemia. The mechanisms include humoral factors secreted by the malignancy, local osteolysis due to tumor invasion of bone, and excessive absorption of calcium due to excess vitamin D produced by malignancies.⁵ The cancers that most frequently cause an increase in calcium resorption are lung cancer, renal cancer, breast cancer, and multiple myeloma.¹

Solid tumors with no bone metastasis and non-Hodgkin lymphoma that release PTH-related protein (PTHrP) cause humoral hypercalcemia in malignancy. The patient is typically in an advanced stage of disease. PTHrP increases serum calcium levels by decreasing the kidney’s ability to excrete calcium and by increasing bone turnover. It has no effect on intestinal absorption because of its inability to stimulate activated vitamin D₃. Thus, the increase in systemic calcium comes directly from breakdown of bone and inability to excrete the excess.

PTHrP has a unique role in breast cancer: it is released locally in areas where cancer cells have metastasized to bone, but it does not cause a systemic effect. Bone resorption occurs in areas of metastasis and results from an increase in expression of RANKL and RANK in osteoclasts in response to the effects of PTHrP, leading to an increase in the production of osteoclastic cells.¹

Tamoxifen, an endocrine therapy often used in breast cancer, also causes a release of bone-reabsorbing factors from tumor cells, which can partially contribute to hypercal­cemia.⁵

Myeloma cells secrete RANKL, which stimulates osteoclastic activity, and they also  release interleukin 6 (IL-6) and activating macrophage inflammatory protein alpha. Serum testing usually shows low or normal intact PTH, PTHrP, and 1,25-dihydroxyvitamin D.¹

Patients with multiple myeloma have a worse prognosis if they have a high red blood cell distribution width, a condition shown to correlate with malnutrition, leading to deficiencies in vitamin B₁₂ and to poor response to treatment.⁶ Up to 14% of patients with multiple myeloma have vitamin B₁₂ deficiency.⁷

Our patient’s recent weight loss and severe hypercalcemia raise suspicion of malignancy. Further, her obesity makes proper routine breast examination difficult and thus increases the chance of undiagnosed breast cancer.⁸ Her decrease in renal function and her anemia complicated by hypercalcemia also raise suspicion of multiple myeloma.

Hypercalcemia due to drug therapy

Thiazide diuretics, lithium, teriparatide, and vitamin A in excessive amounts can raise the serum calcium concentration.⁵ Our patient was taking a thiazide for hypertension, but her extremely high calcium level places drug-induced hypercalcemia as the sole cause lower on the differential list.

Familial hypercalcemic hypocalciuria

Familial hypercalcemic hypocalciuria is a rare autosomal-dominant cause of hypercalcemia in which the ability of the body (and especially the kidneys) to sense levels of calcium is impaired, leading to a decrease in excretion of calcium in the urine.³ Very high calcium levels are rare in hypercalcemic hypocalciuria.³ In our patient with a corrected calcium concentration of nearly 19 mg/dL, familial hypercalcemic hypocalciuria is very unlikely to be the cause of the hypercalcemia.

WHAT ARE THE NEXT STEPS IN THE WORKUP?

As hypercalcemia has been confirmed, the intact PTH level should be checked to determine whether the patient’s condition is PTH-mediated. If the PTH level is in the upper range of normal or is minimally elevated, primary hyperparathyroidism is likely. Elevated PTH confirms primary hyperparathyroidism. A low-normal or low intact PTH confirms a non-PTH-mediated process, and once this is confirmed, PTHrP levels should be checked. An elevated PTHrP suggests humoral hypercalcemia of malignancy. Serum protein electrophoresis, urine protein electrophoresis, and a serum light chain assay should be performed to rule out multiple myeloma.

Vitamin D toxicity is associated with high concentrations of 1,25-dihydroxyvitamin D and 25-hydroxyvitamin D metabolites. These levels should be checked in this patient.

Other disorders that cause hypercalcemia are vitamin A toxicity and hyperthyroidism, so vitamin A and thyroid-stimulating hormone levels should also be checked.⁵

CASE CONTINUED

After further questioning, the patient said that she had had lower back pain about 1 to 2 weeks before coming to the emergency room; her primary care doctor had said the pain was likely from muscle strain. The pain had almost resolved but was still present.

The results of further laboratory testing were as follows:

• Serum PTH 11 pg/mL (15–65)
• PTHrP 3.4 pmol/L (< 2.0)
• Protein electrophoresis showed a monoclonal (M) spike of 0.2 g/dL (0)
• Activated vitamin D < 5 ng/mL (19.9–79.3)
• Vitamin A 7.2 mg/dL (33.1–100)
• Vitamin B₁₂ 194 pg/mL (239–931)
• Thyroid-stimulating hormone 1.21 mIU/ L (0.47–4.68
• Free thyroxine 1.27 ng/dL (0.78–2.19)
• Iron 103 µg/dL (37–170)
• Total iron-binding capacity 335 µg/dL (265–497)
• Transferrin 248 mg/dL (206–381)
• Ferritin 66 ng/mL (11.1–264)
• Urine protein (random) 100 mg/dL (0–20)
• Urine microalbumin (random) 5.9 mg/dL (0–1.6)
• Urine creatinine clearance 88.5 mL/min (88–128)
• Urine albumin-creatinine ratio 66.66 mg/g (< 30).

A nuclear bone scan showed increased bone uptake in the hip and both shoulders, consistent with arthritis, and increased activity in 2 of the lower left ribs, associated with rib fractures secondary to lytic lesions. A skeletal survey at a later date showed multiple well-circumscribed “punched-out” lytic lesions in both forearms and both femurs.

2. What should be the next step in this patient’s management?

• Intravenous (IV) fluids
• Calcitonin
• Bisphosphonate treatment
• Denosumab
• Hemodialysis

Initial treatment of severe hypercalcemia includes the following:

Start IV isotonic fluids at a rate of 150 mL/h (if the patient is making urine) to maintain urine output at more than 100 mL/h. Closely monitor urine output.

Give calcitonin 4 IU/kg in combination with IV fluids to reduce calcium levels within the first 12 to 48 hours of treatment.

Give a bisphosphonate, eg, zoledronic acid 4 mg over 15 minutes, or pamidronate 60 to 90 mg over 2 hours. Zoledronic acid is preferred in malignancy-induced hypercal­cemia because it is more potent. Doses should be adjusted in patients with renal failure.

Give denosumab if hypercalcemia is refractory to bisphosphonates, or when bisphosphonates cannot be used in renal failure.⁹

Hemodialysis is performed in patients who have significant neurologic symptoms irrespective of acute renal insufficiency.

Our patient was started on 0.9% sodium chloride at a rate of 150 mL/h for severe hypercalcemia. Zoledronic acid 4 mg IV was given once. These measures lowered her calcium level and lessened her acute kidney injury.

ADDITIONAL FINDINGS

Urine testing was positive for Bence Jones protein. Immune electrophoresis, performed because of suspicion of multiple myeloma, showed an elevated level of kappa light chains at 806.7 mg/dL (0.33–1.94) and normal lambda light chains at 0.62 mg/dL (0.57–2.63). The immunoglobulin G level was low at 496 mg/dL (610–1,660). In patients with severe hypercalcemia, these results point to a diagnosis of malignancy. Bone marrow aspiration study showed greater than 10% plasma cells, confirming multiple myeloma.

MULTIPLE MYELOMA

The diagnosis of multiple myeloma is based in part on the presence of 10% or more of clonal bone marrow plasma cells¹⁰ and of specific end-organ damage (anemia, hypercalcemia, renal insufficiency, or bone lesions).⁹

Bone marrow clonality can be shown by the ratio of kappa to lambda light chains as  detected with immunohistochemistry, immunofluorescence, or flow cytometry.11 The normal ratio is 0.26 to 1.65 for a patient with normal kidney function. In this patient, however, the ratio was 1,301.08 (806.67 kappa to 0.62 lambda), which was extremely out of range. The patient’s bone marrow biopsy results revealed the presence of 15% clonal bone marrow plasma cells.

Multiple myeloma causes osteolytic lesions through increased activation of osteoclast activating factor that stimulates the growth of osteoclast precursors. At the same time, it inhibits osteoblast formation via multiple pathways, including the action of sclerostin.¹¹ Our patient had lytic lesions in 2 left lower ribs and in both forearms and femurs.

Hypercalcemia in multiple myeloma is attributed to 2 main factors: bone breakdown and macrophage overactivation. Multiple myeloma cells increase the release of macrophage inflammatory protein 1-alpha and tumor necrosis factor, which are inflammatory proteins that cause an increase in macrophages, which cause an increase in calcitriol.¹¹ As noted, our patient’s calcium level at presentation was 18.4 mg/dL uncorrected and 18.96 mg/dL corrected.

Cast nephropathy can occur in the distal tubules from the increased free light chains circulating and combining with Tamm-Horsfall protein, which in turn causes obstruction and local inflammation,¹² leading to a rise in creatinine levels and resulting in acute kidney injury,¹² as in our patient.

TREATMENT CONSIDERATIONS IN MULTIPLE MYELOMA

Our patient was referred to an oncologist for management.

In the management of multiple myeloma, the patient’s quality of life needs to be considered. With the development of new agents to combat the damages of the osteolytic effects, there is hope for improving quality of life.^13,14 New agents under study include anabolic agents such as antisclerostin and anti-Dickkopf-1, which promote osteoblastogenesis, leading to bone formation, with the possibility of repairing existing damage.¹⁵

TAKE-HOME POINTS

• If hypercalcemia is mild to moderate, consider primary hyperparathyroidism.
• Identify patients with severe symptoms of hypercalcemia such as volume depletion, acute kidney injury, arrhythmia, or seizures.
• Confirm severe cases of hypercalcemia and treat severe cases effectively.
• Severe hypercalcemia may need further investigation into a potential underlying malignancy.

A morbidly obese 54-year-old woman presented to the emergency department after experiencing generalized abdominal pain for 3 days. She rated the pain as 5 on a scale of 10 and described it as dull, cramping, waxing and waning, not radiating, and not relieved with changes of position—in fact, not alleviated by anything she had tried. Her pain was associated with nausea and 1 episode of vomiting. She also experienced constipation before the onset of pain.

She denied recent trauma, recent travel, diarrhea, fevers, weakness, shortness of breath, chest pain, other muscle pains, or recent changes in diet. She also denied having this pain in the past. She said she had unintentionally lost some weight but was not certain how much. She denied tobacco, alcohol, or illicit drug use. She had no history of surgery.

Her medical history included hypertension, anemia, and uterine fibroids. Her current medications included losartan, hydrochlorothiazide, and albuterol. She had no family history of significant disease.

INITIAL EVALUATION AND MANAGEMENT

On admission, her temperature was 97.8°F (36.6°C), heart rate 100 beats per minute, blood pressure 136/64 mm Hg, respiratory rate 18 breaths per minute, oxygen saturation 97% on room air, weight 130.6 kg, and body mass index 35 kg/m².

She was alert and oriented to person, place, and time. She was in mild discomfort but no distress. Her lungs were clear to auscultation, with no wheezing or crackles. Heart rate and rhythm were regular, with no extra heart sounds or murmurs. Bowel sounds were normal in all 4 quadrants, with tenderness to palpation of the epigastric area, but with no guarding or rebound tenderness.

Laboratory test results

Notable results of blood testing at presentation were as follows:

• Hemoglobin 8.2 g/dL (reference range 12.3–15.3)
• Hematocrit 26% (41–50)
• Mean corpuscular volume 107 fL (80–100)
• Blood urea nitrogen 33 mg/dL (8–21); 6 months earlier it was 16
• Serum creatinine 3.6 mg/dL (0.58–0.96); 6 months earlier, it was 0.75
• Albumin 3.3 g/dL (3.5–5)
• Calcium 18.4 mg/dL (8.4–10.2); 6 months earlier, it was 9.6
• Corrected calcium 19 mg/dL.

Findings on imaging, electrocardiography

Chest radiography showed no acute cardiopulmonary abnormalities. Abdominal computed tomography without contrast showed no abnormalities within the pancreas and no evidence of inflammation or obstruction. Electrocardiography showed sinus tachycardia.

DIFFERENTIAL DIAGNOSIS

1. Which is the most likely cause of this patient’s symptoms?

• Primary hyperparathyroidism
• Malignancy
• Her drug therapy
• Familial hypercalcemic hypocalciuria

In total, her laboratory results were consistent with macrocytic anemia, severe hypercalcemia, and acute kidney injury, and she had generalized symptoms.

Primary hyperparathyroidism

A main cause of hypercalcemia is primary hyperparathyroidism, and this needs to be ruled out. Benign adenomas are the most common cause of primary hyperparathyroidism, and a risk factor for benign adenoma is exposure to therapeutic levels of radiation.³

In hyperparathyroidism, there is an increased secretion of parathyroid hormone (PTH), which has multiple effects including increased reabsorption of calcium from the urine, increased excretion of phosphate, and increased expression of 1,25-hydroxyvitamin D hydroxylase to activate vitamin D. PTH also stimulates osteoclasts to increase their expression of receptor activator of nuclear factor kappa B ligand (RANKL), which has a downstream effect on osteoclast precursors to cause bone reabsorption.³

Inherited primary hyperparathyroidism tends to present at a younger age, with multiple overactive parathyroid glands.³ Given our patient’s age, inherited primary hyparathyroidism is thus less likely.

The probability that malignancy is causing the hypercalcemia increases with calcium levels greater than 13 mg/dL. Epidemiologically, in hospitalized patients with hypercalcemia, the source tends to be malignancy.⁴ Typically, patients who develop hypercalcemia from malignancy have a worse prognosis.⁵

Solid tumors and leukemias can cause hypercalcemia. The mechanisms include humoral factors secreted by the malignancy, local osteolysis due to tumor invasion of bone, and excessive absorption of calcium due to excess vitamin D produced by malignancies.⁵ The cancers that most frequently cause an increase in calcium resorption are lung cancer, renal cancer, breast cancer, and multiple myeloma.¹

Solid tumors with no bone metastasis and non-Hodgkin lymphoma that release PTH-related protein (PTHrP) cause humoral hypercalcemia in malignancy. The patient is typically in an advanced stage of disease. PTHrP increases serum calcium levels by decreasing the kidney’s ability to excrete calcium and by increasing bone turnover. It has no effect on intestinal absorption because of its inability to stimulate activated vitamin D₃. Thus, the increase in systemic calcium comes directly from breakdown of bone and inability to excrete the excess.

PTHrP has a unique role in breast cancer: it is released locally in areas where cancer cells have metastasized to bone, but it does not cause a systemic effect. Bone resorption occurs in areas of metastasis and results from an increase in expression of RANKL and RANK in osteoclasts in response to the effects of PTHrP, leading to an increase in the production of osteoclastic cells.¹

Tamoxifen, an endocrine therapy often used in breast cancer, also causes a release of bone-reabsorbing factors from tumor cells, which can partially contribute to hypercal­cemia.⁵

Myeloma cells secrete RANKL, which stimulates osteoclastic activity, and they also  release interleukin 6 (IL-6) and activating macrophage inflammatory protein alpha. Serum testing usually shows low or normal intact PTH, PTHrP, and 1,25-dihydroxyvitamin D.¹

Patients with multiple myeloma have a worse prognosis if they have a high red blood cell distribution width, a condition shown to correlate with malnutrition, leading to deficiencies in vitamin B₁₂ and to poor response to treatment.⁶ Up to 14% of patients with multiple myeloma have vitamin B₁₂ deficiency.⁷

Our patient’s recent weight loss and severe hypercalcemia raise suspicion of malignancy. Further, her obesity makes proper routine breast examination difficult and thus increases the chance of undiagnosed breast cancer.⁸ Her decrease in renal function and her anemia complicated by hypercalcemia also raise suspicion of multiple myeloma.

Hypercalcemia due to drug therapy

Thiazide diuretics, lithium, teriparatide, and vitamin A in excessive amounts can raise the serum calcium concentration.⁵ Our patient was taking a thiazide for hypertension, but her extremely high calcium level places drug-induced hypercalcemia as the sole cause lower on the differential list.

Familial hypercalcemic hypocalciuria

Familial hypercalcemic hypocalciuria is a rare autosomal-dominant cause of hypercalcemia in which the ability of the body (and especially the kidneys) to sense levels of calcium is impaired, leading to a decrease in excretion of calcium in the urine.³ Very high calcium levels are rare in hypercalcemic hypocalciuria.³ In our patient with a corrected calcium concentration of nearly 19 mg/dL, familial hypercalcemic hypocalciuria is very unlikely to be the cause of the hypercalcemia.

WHAT ARE THE NEXT STEPS IN THE WORKUP?

As hypercalcemia has been confirmed, the intact PTH level should be checked to determine whether the patient’s condition is PTH-mediated. If the PTH level is in the upper range of normal or is minimally elevated, primary hyperparathyroidism is likely. Elevated PTH confirms primary hyperparathyroidism. A low-normal or low intact PTH confirms a non-PTH-mediated process, and once this is confirmed, PTHrP levels should be checked. An elevated PTHrP suggests humoral hypercalcemia of malignancy. Serum protein electrophoresis, urine protein electrophoresis, and a serum light chain assay should be performed to rule out multiple myeloma.

Vitamin D toxicity is associated with high concentrations of 1,25-dihydroxyvitamin D and 25-hydroxyvitamin D metabolites. These levels should be checked in this patient.

Other disorders that cause hypercalcemia are vitamin A toxicity and hyperthyroidism, so vitamin A and thyroid-stimulating hormone levels should also be checked.⁵

CASE CONTINUED

After further questioning, the patient said that she had had lower back pain about 1 to 2 weeks before coming to the emergency room; her primary care doctor had said the pain was likely from muscle strain. The pain had almost resolved but was still present.

The results of further laboratory testing were as follows:

• Serum PTH 11 pg/mL (15–65)
• PTHrP 3.4 pmol/L (< 2.0)
• Protein electrophoresis showed a monoclonal (M) spike of 0.2 g/dL (0)
• Activated vitamin D < 5 ng/mL (19.9–79.3)
• Vitamin A 7.2 mg/dL (33.1–100)
• Vitamin B₁₂ 194 pg/mL (239–931)
• Thyroid-stimulating hormone 1.21 mIU/ L (0.47–4.68
• Free thyroxine 1.27 ng/dL (0.78–2.19)
• Iron 103 µg/dL (37–170)
• Total iron-binding capacity 335 µg/dL (265–497)
• Transferrin 248 mg/dL (206–381)
• Ferritin 66 ng/mL (11.1–264)
• Urine protein (random) 100 mg/dL (0–20)
• Urine microalbumin (random) 5.9 mg/dL (0–1.6)
• Urine creatinine clearance 88.5 mL/min (88–128)
• Urine albumin-creatinine ratio 66.66 mg/g (< 30).

A nuclear bone scan showed increased bone uptake in the hip and both shoulders, consistent with arthritis, and increased activity in 2 of the lower left ribs, associated with rib fractures secondary to lytic lesions. A skeletal survey at a later date showed multiple well-circumscribed “punched-out” lytic lesions in both forearms and both femurs.

2. What should be the next step in this patient’s management?

• Intravenous (IV) fluids
• Calcitonin
• Bisphosphonate treatment
• Denosumab
• Hemodialysis

Initial treatment of severe hypercalcemia includes the following:

Start IV isotonic fluids at a rate of 150 mL/h (if the patient is making urine) to maintain urine output at more than 100 mL/h. Closely monitor urine output.

Give calcitonin 4 IU/kg in combination with IV fluids to reduce calcium levels within the first 12 to 48 hours of treatment.

Give a bisphosphonate, eg, zoledronic acid 4 mg over 15 minutes, or pamidronate 60 to 90 mg over 2 hours. Zoledronic acid is preferred in malignancy-induced hypercal­cemia because it is more potent. Doses should be adjusted in patients with renal failure.

Give denosumab if hypercalcemia is refractory to bisphosphonates, or when bisphosphonates cannot be used in renal failure.⁹

Hemodialysis is performed in patients who have significant neurologic symptoms irrespective of acute renal insufficiency.

Our patient was started on 0.9% sodium chloride at a rate of 150 mL/h for severe hypercalcemia. Zoledronic acid 4 mg IV was given once. These measures lowered her calcium level and lessened her acute kidney injury.

ADDITIONAL FINDINGS

Urine testing was positive for Bence Jones protein. Immune electrophoresis, performed because of suspicion of multiple myeloma, showed an elevated level of kappa light chains at 806.7 mg/dL (0.33–1.94) and normal lambda light chains at 0.62 mg/dL (0.57–2.63). The immunoglobulin G level was low at 496 mg/dL (610–1,660). In patients with severe hypercalcemia, these results point to a diagnosis of malignancy. Bone marrow aspiration study showed greater than 10% plasma cells, confirming multiple myeloma.

MULTIPLE MYELOMA

The diagnosis of multiple myeloma is based in part on the presence of 10% or more of clonal bone marrow plasma cells¹⁰ and of specific end-organ damage (anemia, hypercalcemia, renal insufficiency, or bone lesions).⁹

Bone marrow clonality can be shown by the ratio of kappa to lambda light chains as  detected with immunohistochemistry, immunofluorescence, or flow cytometry.11 The normal ratio is 0.26 to 1.65 for a patient with normal kidney function. In this patient, however, the ratio was 1,301.08 (806.67 kappa to 0.62 lambda), which was extremely out of range. The patient’s bone marrow biopsy results revealed the presence of 15% clonal bone marrow plasma cells.

Multiple myeloma causes osteolytic lesions through increased activation of osteoclast activating factor that stimulates the growth of osteoclast precursors. At the same time, it inhibits osteoblast formation via multiple pathways, including the action of sclerostin.¹¹ Our patient had lytic lesions in 2 left lower ribs and in both forearms and femurs.

Hypercalcemia in multiple myeloma is attributed to 2 main factors: bone breakdown and macrophage overactivation. Multiple myeloma cells increase the release of macrophage inflammatory protein 1-alpha and tumor necrosis factor, which are inflammatory proteins that cause an increase in macrophages, which cause an increase in calcitriol.¹¹ As noted, our patient’s calcium level at presentation was 18.4 mg/dL uncorrected and 18.96 mg/dL corrected.

Cast nephropathy can occur in the distal tubules from the increased free light chains circulating and combining with Tamm-Horsfall protein, which in turn causes obstruction and local inflammation,¹² leading to a rise in creatinine levels and resulting in acute kidney injury,¹² as in our patient.

TREATMENT CONSIDERATIONS IN MULTIPLE MYELOMA

Our patient was referred to an oncologist for management.

In the management of multiple myeloma, the patient’s quality of life needs to be considered. With the development of new agents to combat the damages of the osteolytic effects, there is hope for improving quality of life.^13,14 New agents under study include anabolic agents such as antisclerostin and anti-Dickkopf-1, which promote osteoblastogenesis, leading to bone formation, with the possibility of repairing existing damage.¹⁵

TAKE-HOME POINTS

• If hypercalcemia is mild to moderate, consider primary hyperparathyroidism.
• Identify patients with severe symptoms of hypercalcemia such as volume depletion, acute kidney injury, arrhythmia, or seizures.
• Confirm severe cases of hypercalcemia and treat severe cases effectively.
• Severe hypercalcemia may need further investigation into a potential underlying malignancy.

Despite guidelines recommending low-dose oral glucocorticoids over high-dose intravenous (IV) glucocorticoids for inpatient management of acute exacerbations of chronic obstructive pulmonary disease (COPD), we have observed that most patients still receive high-dose IV therapy before being transitioned to low-dose oral therapy at discharge. Clinical inertia undoubtedly plays a significant role in the slow adoption of new recommendations, but in this era of evidence-based practice, the unfortunate lack of data supporting low over high steroid doses for acute exacerbations of COPD also contributes to hesitancy of physicians.

A SIGNIFICANT AND GROWING BURDEN

COPD is one of the most common pulmonary conditions managed by hospitalists today, and by the year 2030, it is predicted to become the third leading cause of death worldwide.¹

COPD is also a significant economic burden, costing $50 billion to manage in the United States, most of that from the cost of lengthy hospital stays.² COPD patients have 1 to 2 exacerbations per year.³ Bacterial and viral infections are responsible for most exacerbations, and 15% to 20% are from air pollution and other environmental causes of airway inflammation.³

CHALLENGES TO CHANGING PRACTICE

Glucocorticoids are the gold standard for treatment of acute exacerbations of COPD. It is well-documented that compared with placebo, glucocorticoids reduce mortality risk, length of hospital stay, and exacerbation recurrence after 1 month.⁴ And while high-dose IV steroid therapy has been the standard approach, oral administration has been found to be noninferior to IV administration with regard to treatment and length of hospital stay.⁵

While adverse effects are more common at higher doses, the optimal dose and duration of systemic glucocorticoid therapy for acute exacerbations of COPD are still largely at the discretion of the physician. The 2019 report of the Global Initiative for Chronic Obstructive Lung Disease (GOLD) recommends low doses (40 mg) for no more than 5 to 7 days for exacerbations, based on reports that showed no worse outcomes with low-dose oral than with high-dose IV therapy.^6,7 (In the 2010 study by Lindenauer et al,⁷ 92% of nearly 80,000 patients received high-dose IV steroids, reflecting standard practice at that time.) However, the GOLD guidelines do not address mortality rates, length of stay, or readmission rates for either approach, as they are devised to direct treatment in patients with stable mild to advanced COPD, not exacerbations.

Mortality rates

Aksoy et al⁸ established that, compared with placebo, low-dose steroids improved mortality rates in a subset of patients with acute exacerbations, specifically those with eosinophilic exacerbations. This study followed the 2013 Reduction in the Use of Corticosteroids in Exacerbated COPD (REDUCE) trial, which showed mortality rates were not lower with 14 days of low-dose prednisone treatment than with 5 days.9

Length of hospital stay

With regard to length of hospital stay, in 2011 Wang et al¹⁰ found no statistically significant difference between high- and low-dose steroid treatment.However, the REDUCE trial found that low-dose steroids shortened the median length of stay by 1 day compared with placebo.⁹

Hospital readmission rates

The REDUCE trial found no statistically significant difference in readmission rates when comparing 5 days of low-dose treatment vs 14 days.⁹ However, Aksoy et al⁸ found that readmission rates were significantly lower with low-dose treatment than with placebo.No study has yet examined readmission rates with high-dose vs low-dose steroid treatment.

What does the evidence tell us?

Low-dose oral glucocorticoid treatment shows definitive benefits in terms of lower mortality rates, shorter hospital length of stay, and lower readmission rates vs placebo in the treatment of acute exacerbations of COPD. Furthermore, a 14-day course is no better than 5 days in terms of mortality rates. And low-dose glucocorticoid treatment shows reduced mortality rates in addition to similar hospital length of stay when compared to high-dose glucocorticoid treatment.

Together, these findings lend credibility to the current GOLD recommendations. However, we have observed that in sharp contrast to the leading clinical guidelines, most patients hospitalized for acute exacerbations of COPD are still treated initially with high-dose IV corticosteroids. Why?

Obstacles that perpetuate the use of high-dose over low-dose treatment include lack of knowledge of glucocorticoid pharmacokinetics among clinicians, use of outdated order sets, and the reflex notion that more of a drug is more efficacious in its desired effect. In addition, administrative obstacles include using high-dose IV steroids to justify an inpatient stay or continued hospitalization.

COUNTERING THE OBSTACLES: THE HOSPITALIST’S ROLE

To counter these obstacles, we propose standardization of inpatient treatment of acute exacerbations of COPD to include initial low-dose steroid treatment in accordance with the most recent GOLD guidelines.⁶ This would benefit the patient by reducing undesirable effects of high-dose steroids, and at the same time reduce the economic burden of managing COPD exacerbations. Considering the large number of hospitalizations for COPD exacerbation each year, hospitalists can play a large role in this effort by routinely incorporating the low-dose steroid recommendation into their clinical practice.

Despite guidelines recommending low-dose oral glucocorticoids over high-dose intravenous (IV) glucocorticoids for inpatient management of acute exacerbations of chronic obstructive pulmonary disease (COPD), we have observed that most patients still receive high-dose IV therapy before being transitioned to low-dose oral therapy at discharge. Clinical inertia undoubtedly plays a significant role in the slow adoption of new recommendations, but in this era of evidence-based practice, the unfortunate lack of data supporting low over high steroid doses for acute exacerbations of COPD also contributes to hesitancy of physicians.

A SIGNIFICANT AND GROWING BURDEN

COPD is one of the most common pulmonary conditions managed by hospitalists today, and by the year 2030, it is predicted to become the third leading cause of death worldwide.¹

COPD is also a significant economic burden, costing $50 billion to manage in the United States, most of that from the cost of lengthy hospital stays.² COPD patients have 1 to 2 exacerbations per year.³ Bacterial and viral infections are responsible for most exacerbations, and 15% to 20% are from air pollution and other environmental causes of airway inflammation.³

CHALLENGES TO CHANGING PRACTICE

Glucocorticoids are the gold standard for treatment of acute exacerbations of COPD. It is well-documented that compared with placebo, glucocorticoids reduce mortality risk, length of hospital stay, and exacerbation recurrence after 1 month.⁴ And while high-dose IV steroid therapy has been the standard approach, oral administration has been found to be noninferior to IV administration with regard to treatment and length of hospital stay.⁵

While adverse effects are more common at higher doses, the optimal dose and duration of systemic glucocorticoid therapy for acute exacerbations of COPD are still largely at the discretion of the physician. The 2019 report of the Global Initiative for Chronic Obstructive Lung Disease (GOLD) recommends low doses (40 mg) for no more than 5 to 7 days for exacerbations, based on reports that showed no worse outcomes with low-dose oral than with high-dose IV therapy.^6,7 (In the 2010 study by Lindenauer et al,⁷ 92% of nearly 80,000 patients received high-dose IV steroids, reflecting standard practice at that time.) However, the GOLD guidelines do not address mortality rates, length of stay, or readmission rates for either approach, as they are devised to direct treatment in patients with stable mild to advanced COPD, not exacerbations.

Mortality rates

Aksoy et al⁸ established that, compared with placebo, low-dose steroids improved mortality rates in a subset of patients with acute exacerbations, specifically those with eosinophilic exacerbations. This study followed the 2013 Reduction in the Use of Corticosteroids in Exacerbated COPD (REDUCE) trial, which showed mortality rates were not lower with 14 days of low-dose prednisone treatment than with 5 days.9

Length of hospital stay

With regard to length of hospital stay, in 2011 Wang et al¹⁰ found no statistically significant difference between high- and low-dose steroid treatment.However, the REDUCE trial found that low-dose steroids shortened the median length of stay by 1 day compared with placebo.⁹

Hospital readmission rates

The REDUCE trial found no statistically significant difference in readmission rates when comparing 5 days of low-dose treatment vs 14 days.⁹ However, Aksoy et al⁸ found that readmission rates were significantly lower with low-dose treatment than with placebo.No study has yet examined readmission rates with high-dose vs low-dose steroid treatment.

What does the evidence tell us?

Low-dose oral glucocorticoid treatment shows definitive benefits in terms of lower mortality rates, shorter hospital length of stay, and lower readmission rates vs placebo in the treatment of acute exacerbations of COPD. Furthermore, a 14-day course is no better than 5 days in terms of mortality rates. And low-dose glucocorticoid treatment shows reduced mortality rates in addition to similar hospital length of stay when compared to high-dose glucocorticoid treatment.

Together, these findings lend credibility to the current GOLD recommendations. However, we have observed that in sharp contrast to the leading clinical guidelines, most patients hospitalized for acute exacerbations of COPD are still treated initially with high-dose IV corticosteroids. Why?

Obstacles that perpetuate the use of high-dose over low-dose treatment include lack of knowledge of glucocorticoid pharmacokinetics among clinicians, use of outdated order sets, and the reflex notion that more of a drug is more efficacious in its desired effect. In addition, administrative obstacles include using high-dose IV steroids to justify an inpatient stay or continued hospitalization.

COUNTERING THE OBSTACLES: THE HOSPITALIST’S ROLE

To counter these obstacles, we propose standardization of inpatient treatment of acute exacerbations of COPD to include initial low-dose steroid treatment in accordance with the most recent GOLD guidelines.⁶ This would benefit the patient by reducing undesirable effects of high-dose steroids, and at the same time reduce the economic burden of managing COPD exacerbations. Considering the large number of hospitalizations for COPD exacerbation each year, hospitalists can play a large role in this effort by routinely incorporating the low-dose steroid recommendation into their clinical practice.

Despite guidelines recommending low-dose oral glucocorticoids over high-dose intravenous (IV) glucocorticoids for inpatient management of acute exacerbations of chronic obstructive pulmonary disease (COPD), we have observed that most patients still receive high-dose IV therapy before being transitioned to low-dose oral therapy at discharge. Clinical inertia undoubtedly plays a significant role in the slow adoption of new recommendations, but in this era of evidence-based practice, the unfortunate lack of data supporting low over high steroid doses for acute exacerbations of COPD also contributes to hesitancy of physicians.

A SIGNIFICANT AND GROWING BURDEN

COPD is one of the most common pulmonary conditions managed by hospitalists today, and by the year 2030, it is predicted to become the third leading cause of death worldwide.¹

COPD is also a significant economic burden, costing $50 billion to manage in the United States, most of that from the cost of lengthy hospital stays.² COPD patients have 1 to 2 exacerbations per year.³ Bacterial and viral infections are responsible for most exacerbations, and 15% to 20% are from air pollution and other environmental causes of airway inflammation.³

CHALLENGES TO CHANGING PRACTICE

Glucocorticoids are the gold standard for treatment of acute exacerbations of COPD. It is well-documented that compared with placebo, glucocorticoids reduce mortality risk, length of hospital stay, and exacerbation recurrence after 1 month.⁴ And while high-dose IV steroid therapy has been the standard approach, oral administration has been found to be noninferior to IV administration with regard to treatment and length of hospital stay.⁵

While adverse effects are more common at higher doses, the optimal dose and duration of systemic glucocorticoid therapy for acute exacerbations of COPD are still largely at the discretion of the physician. The 2019 report of the Global Initiative for Chronic Obstructive Lung Disease (GOLD) recommends low doses (40 mg) for no more than 5 to 7 days for exacerbations, based on reports that showed no worse outcomes with low-dose oral than with high-dose IV therapy.^6,7 (In the 2010 study by Lindenauer et al,⁷ 92% of nearly 80,000 patients received high-dose IV steroids, reflecting standard practice at that time.) However, the GOLD guidelines do not address mortality rates, length of stay, or readmission rates for either approach, as they are devised to direct treatment in patients with stable mild to advanced COPD, not exacerbations.

Mortality rates

Aksoy et al⁸ established that, compared with placebo, low-dose steroids improved mortality rates in a subset of patients with acute exacerbations, specifically those with eosinophilic exacerbations. This study followed the 2013 Reduction in the Use of Corticosteroids in Exacerbated COPD (REDUCE) trial, which showed mortality rates were not lower with 14 days of low-dose prednisone treatment than with 5 days.9

Length of hospital stay

With regard to length of hospital stay, in 2011 Wang et al¹⁰ found no statistically significant difference between high- and low-dose steroid treatment.However, the REDUCE trial found that low-dose steroids shortened the median length of stay by 1 day compared with placebo.⁹

Hospital readmission rates

The REDUCE trial found no statistically significant difference in readmission rates when comparing 5 days of low-dose treatment vs 14 days.⁹ However, Aksoy et al⁸ found that readmission rates were significantly lower with low-dose treatment than with placebo.No study has yet examined readmission rates with high-dose vs low-dose steroid treatment.

What does the evidence tell us?

Low-dose oral glucocorticoid treatment shows definitive benefits in terms of lower mortality rates, shorter hospital length of stay, and lower readmission rates vs placebo in the treatment of acute exacerbations of COPD. Furthermore, a 14-day course is no better than 5 days in terms of mortality rates. And low-dose glucocorticoid treatment shows reduced mortality rates in addition to similar hospital length of stay when compared to high-dose glucocorticoid treatment.

Together, these findings lend credibility to the current GOLD recommendations. However, we have observed that in sharp contrast to the leading clinical guidelines, most patients hospitalized for acute exacerbations of COPD are still treated initially with high-dose IV corticosteroids. Why?

Obstacles that perpetuate the use of high-dose over low-dose treatment include lack of knowledge of glucocorticoid pharmacokinetics among clinicians, use of outdated order sets, and the reflex notion that more of a drug is more efficacious in its desired effect. In addition, administrative obstacles include using high-dose IV steroids to justify an inpatient stay or continued hospitalization.

COUNTERING THE OBSTACLES: THE HOSPITALIST’S ROLE

To counter these obstacles, we propose standardization of inpatient treatment of acute exacerbations of COPD to include initial low-dose steroid treatment in accordance with the most recent GOLD guidelines.⁶ This would benefit the patient by reducing undesirable effects of high-dose steroids, and at the same time reduce the economic burden of managing COPD exacerbations. Considering the large number of hospitalizations for COPD exacerbation each year, hospitalists can play a large role in this effort by routinely incorporating the low-dose steroid recommendation into their clinical practice.

ANSWER

There is evidence of significant widening of the pubic symphysis. This injury results in a disruption of the normal pelvic ring. Such fractures are typically referred to as open-book pelvic fractures. Usually the result of high-energy trauma, they can also be associated with bladder and/or vascular injuries.

Orthopedics was consulted for management of this injury. Prompt stabilization with an external binder may help reduce complications. The patient will ultimately require some form of external or internal fixation.

ANSWER

There is evidence of significant widening of the pubic symphysis. This injury results in a disruption of the normal pelvic ring. Such fractures are typically referred to as open-book pelvic fractures. Usually the result of high-energy trauma, they can also be associated with bladder and/or vascular injuries.

Orthopedics was consulted for management of this injury. Prompt stabilization with an external binder may help reduce complications. The patient will ultimately require some form of external or internal fixation.

ANSWER

There is evidence of significant widening of the pubic symphysis. This injury results in a disruption of the normal pelvic ring. Such fractures are typically referred to as open-book pelvic fractures. Usually the result of high-energy trauma, they can also be associated with bladder and/or vascular injuries.

Orthopedics was consulted for management of this injury. Prompt stabilization with an external binder may help reduce complications. The patient will ultimately require some form of external or internal fixation.

Regular low-level alcohol consumption may be a bigger risk factor for new-onset atrial fibrillation than binge drinking, according to a paper published online in EP Europace.

Nikada/iStockphoto

Alcohol consumption is known to have a dose-dependent association with the risk of new-onset atrial fibrillation (AFib), but the mechanism underlying this association was not clear, according to Yun Gi Kim, MD, from the Seoul National University (South Korea), and coauthors.

They analyzed data from the Korean National Health Insurance Service database for 9,776,956 individuals without atrial fibrillation at baseline, including health survey information about their alcohol consumption.

Overall, 51.3% of the study population were classified as nondrinkers, 32.1% were mild drinkers – defined as up to 105 g of alcohol consumed per week ­– 9.7% were moderate drinkers consuming 105-210 g/week, and 6.9% were heavy drinkers consuming 210 g or more per week.

The analysis revealed that heavy drinkers had the highest risk for new-onset AFib – 21.5% higher than mild drinkers – while nondrinkers had an 8.6% higher risk and moderate drinkers had a 7.7% higher risk, compared with mild drinkers.

It also showed an association between the number of drinking sessions per week and the development of new-onset atrial fibrillation. Individuals who only drank once per week had the lowest risk of AFib while those who drank every day had the highest.

“Although weekly alcohol intake was associated with the risk of new-onset [AFib], such association was lost when drinking frequency was included in the multivariate model,” the authors wrote.

They found a significant inverse relationship between the amount of alcohol consumed per drinking session, and the risk of new-onset AFib, such that individuals who consumed low amounts of alcohol per session had a higher risk, and the risk decreased as higher amounts were consumed.

“Regardless of whether weekly alcohol intake exceeded 210 g, the frequency of drinking was significantly associated with risk of new-onset [AFib],” they reported. “Patients who drink everyday represented the highest-risk group and those who drink once per week were the lowest-risk group for new-onset [AFib] in this investigation, respectively.”

The authors speculated that if alcohol consumption can trigger AFib, then multiple drinking episodes per week, regardless of amount, might trigger more episodes of AFib and potentially lead to the development of overt, new-onset disease. They also suggested that frequent drinking could lead to regular sleep disturbance, which might also contribute to the link with atrial fibrillation.

The study was supported by Korea University, Korea University Anam Hospital, Republic of Korea, the National Research Foundation of Korea, the Ministry of Education and the Ministry of Science, ICT, and Future Planning. No conflicts of interest were declared.

SOURCE: Kim YG et al. EP Europace. 2019 Oct 17. doi: 10.1093/europace/euz256.

Regular low-level alcohol consumption may be a bigger risk factor for new-onset atrial fibrillation than binge drinking, according to a paper published online in EP Europace.

Nikada/iStockphoto

Alcohol consumption is known to have a dose-dependent association with the risk of new-onset atrial fibrillation (AFib), but the mechanism underlying this association was not clear, according to Yun Gi Kim, MD, from the Seoul National University (South Korea), and coauthors.

They analyzed data from the Korean National Health Insurance Service database for 9,776,956 individuals without atrial fibrillation at baseline, including health survey information about their alcohol consumption.

Overall, 51.3% of the study population were classified as nondrinkers, 32.1% were mild drinkers – defined as up to 105 g of alcohol consumed per week ­– 9.7% were moderate drinkers consuming 105-210 g/week, and 6.9% were heavy drinkers consuming 210 g or more per week.

The analysis revealed that heavy drinkers had the highest risk for new-onset AFib – 21.5% higher than mild drinkers – while nondrinkers had an 8.6% higher risk and moderate drinkers had a 7.7% higher risk, compared with mild drinkers.

It also showed an association between the number of drinking sessions per week and the development of new-onset atrial fibrillation. Individuals who only drank once per week had the lowest risk of AFib while those who drank every day had the highest.

“Although weekly alcohol intake was associated with the risk of new-onset [AFib], such association was lost when drinking frequency was included in the multivariate model,” the authors wrote.

They found a significant inverse relationship between the amount of alcohol consumed per drinking session, and the risk of new-onset AFib, such that individuals who consumed low amounts of alcohol per session had a higher risk, and the risk decreased as higher amounts were consumed.

“Regardless of whether weekly alcohol intake exceeded 210 g, the frequency of drinking was significantly associated with risk of new-onset [AFib],” they reported. “Patients who drink everyday represented the highest-risk group and those who drink once per week were the lowest-risk group for new-onset [AFib] in this investigation, respectively.”

The authors speculated that if alcohol consumption can trigger AFib, then multiple drinking episodes per week, regardless of amount, might trigger more episodes of AFib and potentially lead to the development of overt, new-onset disease. They also suggested that frequent drinking could lead to regular sleep disturbance, which might also contribute to the link with atrial fibrillation.

The study was supported by Korea University, Korea University Anam Hospital, Republic of Korea, the National Research Foundation of Korea, the Ministry of Education and the Ministry of Science, ICT, and Future Planning. No conflicts of interest were declared.

SOURCE: Kim YG et al. EP Europace. 2019 Oct 17. doi: 10.1093/europace/euz256.

Regular low-level alcohol consumption may be a bigger risk factor for new-onset atrial fibrillation than binge drinking, according to a paper published online in EP Europace.

Nikada/iStockphoto

Alcohol consumption is known to have a dose-dependent association with the risk of new-onset atrial fibrillation (AFib), but the mechanism underlying this association was not clear, according to Yun Gi Kim, MD, from the Seoul National University (South Korea), and coauthors.

They analyzed data from the Korean National Health Insurance Service database for 9,776,956 individuals without atrial fibrillation at baseline, including health survey information about their alcohol consumption.

Overall, 51.3% of the study population were classified as nondrinkers, 32.1% were mild drinkers – defined as up to 105 g of alcohol consumed per week ­– 9.7% were moderate drinkers consuming 105-210 g/week, and 6.9% were heavy drinkers consuming 210 g or more per week.

The analysis revealed that heavy drinkers had the highest risk for new-onset AFib – 21.5% higher than mild drinkers – while nondrinkers had an 8.6% higher risk and moderate drinkers had a 7.7% higher risk, compared with mild drinkers.

It also showed an association between the number of drinking sessions per week and the development of new-onset atrial fibrillation. Individuals who only drank once per week had the lowest risk of AFib while those who drank every day had the highest.

“Although weekly alcohol intake was associated with the risk of new-onset [AFib], such association was lost when drinking frequency was included in the multivariate model,” the authors wrote.

They found a significant inverse relationship between the amount of alcohol consumed per drinking session, and the risk of new-onset AFib, such that individuals who consumed low amounts of alcohol per session had a higher risk, and the risk decreased as higher amounts were consumed.

“Regardless of whether weekly alcohol intake exceeded 210 g, the frequency of drinking was significantly associated with risk of new-onset [AFib],” they reported. “Patients who drink everyday represented the highest-risk group and those who drink once per week were the lowest-risk group for new-onset [AFib] in this investigation, respectively.”

The authors speculated that if alcohol consumption can trigger AFib, then multiple drinking episodes per week, regardless of amount, might trigger more episodes of AFib and potentially lead to the development of overt, new-onset disease. They also suggested that frequent drinking could lead to regular sleep disturbance, which might also contribute to the link with atrial fibrillation.

The study was supported by Korea University, Korea University Anam Hospital, Republic of Korea, the National Research Foundation of Korea, the Ministry of Education and the Ministry of Science, ICT, and Future Planning. No conflicts of interest were declared.

SOURCE: Kim YG et al. EP Europace. 2019 Oct 17. doi: 10.1093/europace/euz256.

Nearly two-thirds of countries worldwide have an insufficient supply of blood for transfusion, according to findings from a recent modeling study including 195 countries and territories.

Tomasz Gierygowski/Thinkstock

Low- and middle-income countries are most often affected, reported lead author Nicholas Roberts of the University of Washington in Seattle and colleagues. Among all countries in Oceania, south Asia, and eastern, central, and western sub-Saharan Africa, not one had enough blood to meet estimated needs, they noted.

Shortages are attributable to a variety of challenges, including resource constraints, insufficient component production, and a high prevalence of infectious diseases, according to investigators. And existing guidelines, which call for 10-20 donations per 1,000 people in the population, may need to be revised, investigators suggested.

“These estimates are important, as they can be used to guide further investments in blood transfusion services, for analysis of current transfusion practices, and to highlight need for alternatives to transfusions such as antifibrinolytics, blood saving devices, and implementation of blood management systems,” the investigators wrote in Lancet Haematology.

Blood availability was calculated using the 2016 WHO Global Status Report on Blood Safety and Availability, in which 92% of countries participated. Blood needs were calculated using multiple databases, including the (U.S.) National Inpatient Sample datasets from 2000-2014, the State Inpatient Databases from 2003-2007, and the Global Burden of Disease 2017 study.

The global blood need was almost 305 million blood product units, while the supply totaled approximately 272 million units. These shortages, however, were not distributed equally across the globe. Out of 195 countries, 119 (61%) had an insufficient supply of blood to meet anticipated demand. Within this group, the shortage equated to about 102 million blood product units.

Denmark had the greatest supply of blood products (red blood cell products, platelets, and plasma), at 14,704 units per 100,000 population, compared with South Sudan, the least prepared to meet transfusion needs, with just 46 blood product units available per 100,000 population. This pattern was echoed across the globe; high-income countries were usually better stocked than those with low or middle income.

To meet demands, some of the most affected countries would need to raise their collection goals from single-digit figures to as high as 40 donations per 1,000 population, the investigators advised.

“Many countries face critical undersupply of transfusions, which will become more pronounced as access to care improves,” the investigators wrote.

The study was funded by the National Institutes of Health. The investigators reported having no other financial disclosures.

SOURCE: Roberts N et al. Lancet Haematol. 2019 Oct 17. doi: 10.1016/ S2352-3026(19)30200-5.

Nearly two-thirds of countries worldwide have an insufficient supply of blood for transfusion, according to findings from a recent modeling study including 195 countries and territories.

Tomasz Gierygowski/Thinkstock

Low- and middle-income countries are most often affected, reported lead author Nicholas Roberts of the University of Washington in Seattle and colleagues. Among all countries in Oceania, south Asia, and eastern, central, and western sub-Saharan Africa, not one had enough blood to meet estimated needs, they noted.

Shortages are attributable to a variety of challenges, including resource constraints, insufficient component production, and a high prevalence of infectious diseases, according to investigators. And existing guidelines, which call for 10-20 donations per 1,000 people in the population, may need to be revised, investigators suggested.

“These estimates are important, as they can be used to guide further investments in blood transfusion services, for analysis of current transfusion practices, and to highlight need for alternatives to transfusions such as antifibrinolytics, blood saving devices, and implementation of blood management systems,” the investigators wrote in Lancet Haematology.

Blood availability was calculated using the 2016 WHO Global Status Report on Blood Safety and Availability, in which 92% of countries participated. Blood needs were calculated using multiple databases, including the (U.S.) National Inpatient Sample datasets from 2000-2014, the State Inpatient Databases from 2003-2007, and the Global Burden of Disease 2017 study.

The global blood need was almost 305 million blood product units, while the supply totaled approximately 272 million units. These shortages, however, were not distributed equally across the globe. Out of 195 countries, 119 (61%) had an insufficient supply of blood to meet anticipated demand. Within this group, the shortage equated to about 102 million blood product units.

Denmark had the greatest supply of blood products (red blood cell products, platelets, and plasma), at 14,704 units per 100,000 population, compared with South Sudan, the least prepared to meet transfusion needs, with just 46 blood product units available per 100,000 population. This pattern was echoed across the globe; high-income countries were usually better stocked than those with low or middle income.

To meet demands, some of the most affected countries would need to raise their collection goals from single-digit figures to as high as 40 donations per 1,000 population, the investigators advised.

“Many countries face critical undersupply of transfusions, which will become more pronounced as access to care improves,” the investigators wrote.

The study was funded by the National Institutes of Health. The investigators reported having no other financial disclosures.

SOURCE: Roberts N et al. Lancet Haematol. 2019 Oct 17. doi: 10.1016/ S2352-3026(19)30200-5.

Nearly two-thirds of countries worldwide have an insufficient supply of blood for transfusion, according to findings from a recent modeling study including 195 countries and territories.

Tomasz Gierygowski/Thinkstock

Low- and middle-income countries are most often affected, reported lead author Nicholas Roberts of the University of Washington in Seattle and colleagues. Among all countries in Oceania, south Asia, and eastern, central, and western sub-Saharan Africa, not one had enough blood to meet estimated needs, they noted.

Shortages are attributable to a variety of challenges, including resource constraints, insufficient component production, and a high prevalence of infectious diseases, according to investigators. And existing guidelines, which call for 10-20 donations per 1,000 people in the population, may need to be revised, investigators suggested.

“These estimates are important, as they can be used to guide further investments in blood transfusion services, for analysis of current transfusion practices, and to highlight need for alternatives to transfusions such as antifibrinolytics, blood saving devices, and implementation of blood management systems,” the investigators wrote in Lancet Haematology.

Blood availability was calculated using the 2016 WHO Global Status Report on Blood Safety and Availability, in which 92% of countries participated. Blood needs were calculated using multiple databases, including the (U.S.) National Inpatient Sample datasets from 2000-2014, the State Inpatient Databases from 2003-2007, and the Global Burden of Disease 2017 study.

The global blood need was almost 305 million blood product units, while the supply totaled approximately 272 million units. These shortages, however, were not distributed equally across the globe. Out of 195 countries, 119 (61%) had an insufficient supply of blood to meet anticipated demand. Within this group, the shortage equated to about 102 million blood product units.

Denmark had the greatest supply of blood products (red blood cell products, platelets, and plasma), at 14,704 units per 100,000 population, compared with South Sudan, the least prepared to meet transfusion needs, with just 46 blood product units available per 100,000 population. This pattern was echoed across the globe; high-income countries were usually better stocked than those with low or middle income.

To meet demands, some of the most affected countries would need to raise their collection goals from single-digit figures to as high as 40 donations per 1,000 population, the investigators advised.

“Many countries face critical undersupply of transfusions, which will become more pronounced as access to care improves,” the investigators wrote.

The study was funded by the National Institutes of Health. The investigators reported having no other financial disclosures.

SOURCE: Roberts N et al. Lancet Haematol. 2019 Oct 17. doi: 10.1016/ S2352-3026(19)30200-5.

New consensus statements, released by a group of 36 experts, provide specific recommendations related to monitoring bleeding and assessing efficacy of treatment in patients with acquired hemophilia.

Svisio/Thinkstock

A global survey was developed by a nine-member steering committee with expertise in the hemostatic management of patients with acquired hemophilia. The Delphi methodology was used to obtain consensus on a list of statements on the location-specific treatment of bleeding in acquired hemophilia.

“The initial survey was circulated via email for refinement and was formally corroborated at a face-to-face meeting,” wrote Andreas Tiede, MD, PhD, of Hannover (Germany) Medical School and fellow experts. The report is published in Haemophilia.

The key areas outlined include the initial management of bleeding, and management of location-specific bleeding, including urological, gastrointestinal, muscle, and pharyngeal bleeds, as well as intracranial and postpartum hemorrhage.

If an expert hematologist is not available, and the bleeding event is life‐threatening, the emergency physician should initiate treatment in accordance with local or national recommendations, according to the initial management guidelines.

With respect to urological bleeds, the best interval for evaluating successful achievement of hemostasis is every 6-12 hours. The experts also reported that, if first-line hemostatic therapy is not effective, more intensive treatment should be considered every 6-12 hours.

In the management of intracranial hemorrhage, the frequency of clinical evaluation is subject to the particular scenario, and it can vary from every 2 hours (for clinical assessment) to every 24 hours (for imaging studies), they wrote.

If initial hemostatic treatment is not effective, more intensive therapy should be considered every 6 hours, they recommended.

“The statement addressing optimal frequency for assessing hemostasis in intracranial bleeds was the subject of much deliberation among the steering committee regarding timing of assessment,” the experts acknowledged.

The geographic diversity and global representation of expert participants were major strengths of these recommendations. However, these statements did not consider socioeconomic parameters or geopolitical differences that could affect patient care. As a result, they may not be applicable to all patient populations.

The manuscript was funded by Novo Nordisk AG. The authors reported having financial affiliations with Novo Nordisk and several other companies.

SOURCE: Tiede A et al. Haemophilia. 2019 Sep 13. doi: 10.1111/hae.13844.

New consensus statements, released by a group of 36 experts, provide specific recommendations related to monitoring bleeding and assessing efficacy of treatment in patients with acquired hemophilia.

Svisio/Thinkstock

A global survey was developed by a nine-member steering committee with expertise in the hemostatic management of patients with acquired hemophilia. The Delphi methodology was used to obtain consensus on a list of statements on the location-specific treatment of bleeding in acquired hemophilia.

“The initial survey was circulated via email for refinement and was formally corroborated at a face-to-face meeting,” wrote Andreas Tiede, MD, PhD, of Hannover (Germany) Medical School and fellow experts. The report is published in Haemophilia.

The key areas outlined include the initial management of bleeding, and management of location-specific bleeding, including urological, gastrointestinal, muscle, and pharyngeal bleeds, as well as intracranial and postpartum hemorrhage.

If an expert hematologist is not available, and the bleeding event is life‐threatening, the emergency physician should initiate treatment in accordance with local or national recommendations, according to the initial management guidelines.

With respect to urological bleeds, the best interval for evaluating successful achievement of hemostasis is every 6-12 hours. The experts also reported that, if first-line hemostatic therapy is not effective, more intensive treatment should be considered every 6-12 hours.

In the management of intracranial hemorrhage, the frequency of clinical evaluation is subject to the particular scenario, and it can vary from every 2 hours (for clinical assessment) to every 24 hours (for imaging studies), they wrote.

If initial hemostatic treatment is not effective, more intensive therapy should be considered every 6 hours, they recommended.

“The statement addressing optimal frequency for assessing hemostasis in intracranial bleeds was the subject of much deliberation among the steering committee regarding timing of assessment,” the experts acknowledged.

The geographic diversity and global representation of expert participants were major strengths of these recommendations. However, these statements did not consider socioeconomic parameters or geopolitical differences that could affect patient care. As a result, they may not be applicable to all patient populations.

The manuscript was funded by Novo Nordisk AG. The authors reported having financial affiliations with Novo Nordisk and several other companies.

SOURCE: Tiede A et al. Haemophilia. 2019 Sep 13. doi: 10.1111/hae.13844.

New consensus statements, released by a group of 36 experts, provide specific recommendations related to monitoring bleeding and assessing efficacy of treatment in patients with acquired hemophilia.

Svisio/Thinkstock

A global survey was developed by a nine-member steering committee with expertise in the hemostatic management of patients with acquired hemophilia. The Delphi methodology was used to obtain consensus on a list of statements on the location-specific treatment of bleeding in acquired hemophilia.

“The initial survey was circulated via email for refinement and was formally corroborated at a face-to-face meeting,” wrote Andreas Tiede, MD, PhD, of Hannover (Germany) Medical School and fellow experts. The report is published in Haemophilia.

The key areas outlined include the initial management of bleeding, and management of location-specific bleeding, including urological, gastrointestinal, muscle, and pharyngeal bleeds, as well as intracranial and postpartum hemorrhage.

If an expert hematologist is not available, and the bleeding event is life‐threatening, the emergency physician should initiate treatment in accordance with local or national recommendations, according to the initial management guidelines.

With respect to urological bleeds, the best interval for evaluating successful achievement of hemostasis is every 6-12 hours. The experts also reported that, if first-line hemostatic therapy is not effective, more intensive treatment should be considered every 6-12 hours.

In the management of intracranial hemorrhage, the frequency of clinical evaluation is subject to the particular scenario, and it can vary from every 2 hours (for clinical assessment) to every 24 hours (for imaging studies), they wrote.

If initial hemostatic treatment is not effective, more intensive therapy should be considered every 6 hours, they recommended.

“The statement addressing optimal frequency for assessing hemostasis in intracranial bleeds was the subject of much deliberation among the steering committee regarding timing of assessment,” the experts acknowledged.

The geographic diversity and global representation of expert participants were major strengths of these recommendations. However, these statements did not consider socioeconomic parameters or geopolitical differences that could affect patient care. As a result, they may not be applicable to all patient populations.

The manuscript was funded by Novo Nordisk AG. The authors reported having financial affiliations with Novo Nordisk and several other companies.

SOURCE: Tiede A et al. Haemophilia. 2019 Sep 13. doi: 10.1111/hae.13844.

After years of relative stability, firearm-related mortality in the United States rose sharply starting in 2015, according to analysis of a national mortality database.

U.S. firearm mortality was 10.4 per 100,000 person-years during 1999-2014, with the high in that period occurring in 2012 and dropping each of the next 2 years – compared with 11.8 per 100,000 during 2015-2017, an increase of 13.8%, Jason E. Goldstick, PhD, and associates wrote Oct. 8 in Health Affairs.

The majority of the 612,310 firearm deaths over the entire study period were suicides, with the proportion rising slightly from 58.6% in 1999-2014 to 60.0% in 2015-2017. Homicides made up 38.5% of deaths in 1999-2014 and 37.9% in 2015-2017, while the combined share of unintentional and undetermined deaths dropped from 2.9% to 2.1%, the investigators reported.

“What we can see is a worsening epidemic of firearm mortality that is geographically and demographically broad,” Dr. Goldstick of the University of Michigan, Ann Arbor, said in a separate written statement.

The geographic broadness can be seen when the change in mortality from 1999-2014 to 2015-2017 was calculated for each locale: 29 states had an increase of more than 20% and only 3 states (California, New York, and Rhode Island) and the District of Columbia had a decrease of at least 12.5%, they said. The data came from the Centers for Disease Control and Prevention’s Wide-ranging Online Data for Epidemiologic Research tool.

The different trends among states and subpopulations make it difficult to offer policy-based interventions. “The epidemiology of firearm violence is complex and varies based on the mechanism of death, demographic group under study, and regionally specific culture, making a one-size-fits-all solution inappropriate,” Dr. Goldstick and associates wrote.

The study was funded mainly by a grant from the National Institute of Child Health and Human Development. The investigators did not provide any information on conflicts of interest.

[email protected]

SOURCE: Goldstick JE et al. Health Aff. 2019;38(10):1646-52.

After years of relative stability, firearm-related mortality in the United States rose sharply starting in 2015, according to analysis of a national mortality database.

U.S. firearm mortality was 10.4 per 100,000 person-years during 1999-2014, with the high in that period occurring in 2012 and dropping each of the next 2 years – compared with 11.8 per 100,000 during 2015-2017, an increase of 13.8%, Jason E. Goldstick, PhD, and associates wrote Oct. 8 in Health Affairs.

The majority of the 612,310 firearm deaths over the entire study period were suicides, with the proportion rising slightly from 58.6% in 1999-2014 to 60.0% in 2015-2017. Homicides made up 38.5% of deaths in 1999-2014 and 37.9% in 2015-2017, while the combined share of unintentional and undetermined deaths dropped from 2.9% to 2.1%, the investigators reported.

“What we can see is a worsening epidemic of firearm mortality that is geographically and demographically broad,” Dr. Goldstick of the University of Michigan, Ann Arbor, said in a separate written statement.

The geographic broadness can be seen when the change in mortality from 1999-2014 to 2015-2017 was calculated for each locale: 29 states had an increase of more than 20% and only 3 states (California, New York, and Rhode Island) and the District of Columbia had a decrease of at least 12.5%, they said. The data came from the Centers for Disease Control and Prevention’s Wide-ranging Online Data for Epidemiologic Research tool.

The different trends among states and subpopulations make it difficult to offer policy-based interventions. “The epidemiology of firearm violence is complex and varies based on the mechanism of death, demographic group under study, and regionally specific culture, making a one-size-fits-all solution inappropriate,” Dr. Goldstick and associates wrote.

The study was funded mainly by a grant from the National Institute of Child Health and Human Development. The investigators did not provide any information on conflicts of interest.

[email protected]

SOURCE: Goldstick JE et al. Health Aff. 2019;38(10):1646-52.

After years of relative stability, firearm-related mortality in the United States rose sharply starting in 2015, according to analysis of a national mortality database.

U.S. firearm mortality was 10.4 per 100,000 person-years during 1999-2014, with the high in that period occurring in 2012 and dropping each of the next 2 years – compared with 11.8 per 100,000 during 2015-2017, an increase of 13.8%, Jason E. Goldstick, PhD, and associates wrote Oct. 8 in Health Affairs.

The majority of the 612,310 firearm deaths over the entire study period were suicides, with the proportion rising slightly from 58.6% in 1999-2014 to 60.0% in 2015-2017. Homicides made up 38.5% of deaths in 1999-2014 and 37.9% in 2015-2017, while the combined share of unintentional and undetermined deaths dropped from 2.9% to 2.1%, the investigators reported.

“What we can see is a worsening epidemic of firearm mortality that is geographically and demographically broad,” Dr. Goldstick of the University of Michigan, Ann Arbor, said in a separate written statement.

The geographic broadness can be seen when the change in mortality from 1999-2014 to 2015-2017 was calculated for each locale: 29 states had an increase of more than 20% and only 3 states (California, New York, and Rhode Island) and the District of Columbia had a decrease of at least 12.5%, they said. The data came from the Centers for Disease Control and Prevention’s Wide-ranging Online Data for Epidemiologic Research tool.

The different trends among states and subpopulations make it difficult to offer policy-based interventions. “The epidemiology of firearm violence is complex and varies based on the mechanism of death, demographic group under study, and regionally specific culture, making a one-size-fits-all solution inappropriate,” Dr. Goldstick and associates wrote.

The study was funded mainly by a grant from the National Institute of Child Health and Human Development. The investigators did not provide any information on conflicts of interest.

[email protected]

SOURCE: Goldstick JE et al. Health Aff. 2019;38(10):1646-52.