Tara S. Rogers-Soeder, PhD, MS, RDN

Hospital in Home (HIH) is the delivery of acute care services in a patient’s home as an alternative to hospitalization.¹ Compared with traditional inpatient care, HIH programs have been associated with reduced costs, as well as patient and caregiver satisfaction, diseasespecific outcomes, and mortality rates that were similar or improved compared with inpatient admissions.^1-4

The US Department of Veterans Affairs (VA) Veterans Health Administration (VHA) and other hospital systems are increasingly adopting HIH models.^2-4 At the time of this writing, there were 12 HIH programs in VHA (personal communication, D. Cooper, 2/28/2022). In addition to physicians and nurses, the interdisciplinary HIH team may include a pharmacist, social worker, and registered dietitian nutritionist (RDN).^2,5 HIH programs have been shown to improve nutritional status as measured by the Mini Nutritional Assessment Score, but overall, there is a paucity of published information regarding the provision of nutrition care in HIH.⁶ The role of the RDN has varied within VHA. Some sites, such as the Sacramento VA Medical Center in California, include a distinct RDN position on the HIH team, whereas others, such as the Spark M. Matsunaga VA Medical Center in Honolulu, Hawaii, and the James A. Haley Veterans’ Hospital in Tampa, Florida, consult clinic RDNs.

Since HIH programs typically treat conditions for which diet is an inherent part of the treatment (eg, congestive heart failure [CHF]), there is a need to precisely define the role of the RDN within the HIH model.^2,3,7 Drawing from my experience as an HIH RDN, I will describe how the inclusion of an RDN position within the HIH team is optimal for health care delivery and how HIH practitioners can best utilize RDN services.

RDN Role in HIH Team

Delegating nutrition services to an RDN enhances patient care by empowering HIH team members to function at the highest level of their scope of practice. RDNs have been recognized by physicians as the most qualified health care professionals to help patients with diet-related conditions, such as obesity, and physicians also have reported a desire for additional training in nutrition.⁸ Although home-health nurses have frequently performed nutrition assessments and interventions, survey results have indicated that many nurses do not feel confident in teaching complex nutritional information^.9 In my experience, many HIH patients are nutritionally complex, with more than one condition requiring nutrition intervention. For example, patients may be admitted to HIH for management of CHF, but they may also have diabetes mellitus (DM), obesity, and low socioeconomic status. The HIH RDN can address the nutrition aspects of these conditions, freeing time for physicians and nurses to focus on their respective areas of expertise.^9,10 Moreover, the RDN can also provide dietary education to the HIH team to increase their knowledge of nutritional topics and promote consistent messaging to patients.

Including an RDN on the HIH team enables patients to have comprehensive, personalized nutrition care. Rather than merely offering generalized nutrition education, RDNs are trained to provide medical nutrition therapy (MNT), which has been shown to improve health outcomes and be cost-effective for conditions such as type 2 DM, chronic kidney disease, hypertension, and obesity.^10,11 In MNT, RDNs use the standardized 4-stepnutrition care process (NCP).¹² The Table shows examples of how the NCP can be applied in HIH settings. Furthermore, in my experience, MNT from an RDN also contributes to patient satisfaction. Subjective observations from my team have indicated that patients often express more confidence in managing their diets by the time of HIH discharge.

RDNs can guide physicians and pharmacists in ordering oral nutrition supplements (ONS). Within the VHA, a “food first” approach is preferred to increase caloric intake, and patients must meet specific criteria for prescription of an ONS.¹³ Furthermore, ONS designed for specific medical conditions (eg, chronic kidney disease) are considered nonformulary and require an RDN evaluation.¹³ Including an RDN on the HIH team allows this evaluation process to begin early in the patient’s admission to the program and ensures that provision of ONS is clinically appropriate and cost-effective.

Care Coordination

HIH is highly interdisciplinary. Team members perform their respective roles and communicate with the team throughout the day. RDNs can help monitor patients and alert physicians for changes in blood glucose, gastrointestinal concerns, and weight. This is especially helpful for patients who do not have a planned nursing visit on the day of an RDN evaluation. The HIH RDN can also collaborate with other team members to address patient needs. For example, for patients with limited financial resources, the HIH RDN can provide nutrition education regarding cooking on a budget, and the HIH social worker can arrange free or low-cost meal services.

Tips

When hiring an HIH RDN, seek candidates with experience in inpatient, outpatient, and home care settings. As a hybrid of these 3 areas, the HIH RDN position requires a unique combination of acute care skills and health coaching. Additionally, in my experience, the HIH RDN interacts more frequently with the HIH team than other RDN colleagues, so it is important that candidates can work independently and take initiative. This type of position would not be suitable for entry-level RDNs.

Stagger HIH team visits to prevent overwhelming the patient and caregivers. Early in our program, my team quickly learned that patients and caregivers can feel overwhelmed with too many home visits upon admission to HIH. After seeing multiple HIH team members the same day, they were often too tired to focus well on diet education during my visit. Staggering visits (eg, completing the initial nutrition assessment 1 day to 1 week after the initial medical and pharmacy visits) has been an effective strategy to address this problem. Furthermore, some patients prefer that the initial RDN appointment is conducted by telephone, with an inperson reassessment the following week. In my experience, HIH workflow is dynamic by nature, so it is crucial to remain flexible and accommodate individual patient needs as much as possible.

Dietary behavior change is a long-term process, and restrictive hospital diets can be challenging to replicate at home. In a hospital setting, clinicians can order a specialized diet (eg, low sodium with fluid restriction for CHF patients), whereas efforts to implement these restrictions in the home setting can be cumbersome and negatively impact quality of life.^7,14 Nevertheless, the effectiveness of medical treatment is compromised when patients do not adhere to dietary recommendations. Meal delivery services that offer specialized diets can be a useful resource for patients and caregivers who are unable to cook, and the HIH RDN can assist patients in ordering these services.

HIH patients may vary in terms of readiness to make dietary changes, and in addition to nutrition education, nutrition counseling is usually needed to effect behavior change. My team has found that consideration of the transtheoretical/ stages of change model can be a helpful approach. ¹⁵ The HIH RDN can tailor nutrition interventions to the patient’s stage of change. For example, for patients in the precontemplation stage, the HIH RDN would focus on providing information and addressing emotional aspects of dietary change. In contrast, for patients in the action stage of change, the HIH RDN might emphasize behavioral skill training and social support.¹⁵ Particularly for patients in the early stages of change, it may be unrealistic to expect full adoption of the recommended diet within the 30 days of the HIH program. However, by acknowledging the reality of the patient’s stage of change, the HIH RDN and team can then collaborate to support the patient in moving toward the next stage. Patients who are not ready for dietary behavior change during the 30 days of HIH may benefit from longer-term support, and the HIH RDN can arrange followup care with an outpatient RDN.

Conclusions

As the HIH model continues to be adopted across the VHA and other health care systems, it is crucial to consider the value and expertise of an RDN for guiding nutrition care in the HIH setting. The HIH RDN contributes to optimal health care delivery by leading nutritional aspects of patient care, offering personalized MNT, and coordinating and collaborating with team members to meet individual patient needs. An RDN can serve as a valuable resource for nutrition information and enhance the team’s overall services, with the potential to impact clinical outcomes and patient satisfaction.

Hospital in Home (HIH) is the delivery of acute care services in a patient’s home as an alternative to hospitalization.¹ Compared with traditional inpatient care, HIH programs have been associated with reduced costs, as well as patient and caregiver satisfaction, diseasespecific outcomes, and mortality rates that were similar or improved compared with inpatient admissions.^1-4

The US Department of Veterans Affairs (VA) Veterans Health Administration (VHA) and other hospital systems are increasingly adopting HIH models.^2-4 At the time of this writing, there were 12 HIH programs in VHA (personal communication, D. Cooper, 2/28/2022). In addition to physicians and nurses, the interdisciplinary HIH team may include a pharmacist, social worker, and registered dietitian nutritionist (RDN).^2,5 HIH programs have been shown to improve nutritional status as measured by the Mini Nutritional Assessment Score, but overall, there is a paucity of published information regarding the provision of nutrition care in HIH.⁶ The role of the RDN has varied within VHA. Some sites, such as the Sacramento VA Medical Center in California, include a distinct RDN position on the HIH team, whereas others, such as the Spark M. Matsunaga VA Medical Center in Honolulu, Hawaii, and the James A. Haley Veterans’ Hospital in Tampa, Florida, consult clinic RDNs.

Since HIH programs typically treat conditions for which diet is an inherent part of the treatment (eg, congestive heart failure [CHF]), there is a need to precisely define the role of the RDN within the HIH model.^2,3,7 Drawing from my experience as an HIH RDN, I will describe how the inclusion of an RDN position within the HIH team is optimal for health care delivery and how HIH practitioners can best utilize RDN services.

RDN Role in HIH Team

Delegating nutrition services to an RDN enhances patient care by empowering HIH team members to function at the highest level of their scope of practice. RDNs have been recognized by physicians as the most qualified health care professionals to help patients with diet-related conditions, such as obesity, and physicians also have reported a desire for additional training in nutrition.⁸ Although home-health nurses have frequently performed nutrition assessments and interventions, survey results have indicated that many nurses do not feel confident in teaching complex nutritional information^.9 In my experience, many HIH patients are nutritionally complex, with more than one condition requiring nutrition intervention. For example, patients may be admitted to HIH for management of CHF, but they may also have diabetes mellitus (DM), obesity, and low socioeconomic status. The HIH RDN can address the nutrition aspects of these conditions, freeing time for physicians and nurses to focus on their respective areas of expertise.^9,10 Moreover, the RDN can also provide dietary education to the HIH team to increase their knowledge of nutritional topics and promote consistent messaging to patients.

Including an RDN on the HIH team enables patients to have comprehensive, personalized nutrition care. Rather than merely offering generalized nutrition education, RDNs are trained to provide medical nutrition therapy (MNT), which has been shown to improve health outcomes and be cost-effective for conditions such as type 2 DM, chronic kidney disease, hypertension, and obesity.^10,11 In MNT, RDNs use the standardized 4-stepnutrition care process (NCP).¹² The Table shows examples of how the NCP can be applied in HIH settings. Furthermore, in my experience, MNT from an RDN also contributes to patient satisfaction. Subjective observations from my team have indicated that patients often express more confidence in managing their diets by the time of HIH discharge.

RDNs can guide physicians and pharmacists in ordering oral nutrition supplements (ONS). Within the VHA, a “food first” approach is preferred to increase caloric intake, and patients must meet specific criteria for prescription of an ONS.¹³ Furthermore, ONS designed for specific medical conditions (eg, chronic kidney disease) are considered nonformulary and require an RDN evaluation.¹³ Including an RDN on the HIH team allows this evaluation process to begin early in the patient’s admission to the program and ensures that provision of ONS is clinically appropriate and cost-effective.

Care Coordination

HIH is highly interdisciplinary. Team members perform their respective roles and communicate with the team throughout the day. RDNs can help monitor patients and alert physicians for changes in blood glucose, gastrointestinal concerns, and weight. This is especially helpful for patients who do not have a planned nursing visit on the day of an RDN evaluation. The HIH RDN can also collaborate with other team members to address patient needs. For example, for patients with limited financial resources, the HIH RDN can provide nutrition education regarding cooking on a budget, and the HIH social worker can arrange free or low-cost meal services.

Tips

When hiring an HIH RDN, seek candidates with experience in inpatient, outpatient, and home care settings. As a hybrid of these 3 areas, the HIH RDN position requires a unique combination of acute care skills and health coaching. Additionally, in my experience, the HIH RDN interacts more frequently with the HIH team than other RDN colleagues, so it is important that candidates can work independently and take initiative. This type of position would not be suitable for entry-level RDNs.

Stagger HIH team visits to prevent overwhelming the patient and caregivers. Early in our program, my team quickly learned that patients and caregivers can feel overwhelmed with too many home visits upon admission to HIH. After seeing multiple HIH team members the same day, they were often too tired to focus well on diet education during my visit. Staggering visits (eg, completing the initial nutrition assessment 1 day to 1 week after the initial medical and pharmacy visits) has been an effective strategy to address this problem. Furthermore, some patients prefer that the initial RDN appointment is conducted by telephone, with an inperson reassessment the following week. In my experience, HIH workflow is dynamic by nature, so it is crucial to remain flexible and accommodate individual patient needs as much as possible.

Dietary behavior change is a long-term process, and restrictive hospital diets can be challenging to replicate at home. In a hospital setting, clinicians can order a specialized diet (eg, low sodium with fluid restriction for CHF patients), whereas efforts to implement these restrictions in the home setting can be cumbersome and negatively impact quality of life.^7,14 Nevertheless, the effectiveness of medical treatment is compromised when patients do not adhere to dietary recommendations. Meal delivery services that offer specialized diets can be a useful resource for patients and caregivers who are unable to cook, and the HIH RDN can assist patients in ordering these services.

HIH patients may vary in terms of readiness to make dietary changes, and in addition to nutrition education, nutrition counseling is usually needed to effect behavior change. My team has found that consideration of the transtheoretical/ stages of change model can be a helpful approach. ¹⁵ The HIH RDN can tailor nutrition interventions to the patient’s stage of change. For example, for patients in the precontemplation stage, the HIH RDN would focus on providing information and addressing emotional aspects of dietary change. In contrast, for patients in the action stage of change, the HIH RDN might emphasize behavioral skill training and social support.¹⁵ Particularly for patients in the early stages of change, it may be unrealistic to expect full adoption of the recommended diet within the 30 days of the HIH program. However, by acknowledging the reality of the patient’s stage of change, the HIH RDN and team can then collaborate to support the patient in moving toward the next stage. Patients who are not ready for dietary behavior change during the 30 days of HIH may benefit from longer-term support, and the HIH RDN can arrange followup care with an outpatient RDN.

Conclusions

As the HIH model continues to be adopted across the VHA and other health care systems, it is crucial to consider the value and expertise of an RDN for guiding nutrition care in the HIH setting. The HIH RDN contributes to optimal health care delivery by leading nutritional aspects of patient care, offering personalized MNT, and coordinating and collaborating with team members to meet individual patient needs. An RDN can serve as a valuable resource for nutrition information and enhance the team’s overall services, with the potential to impact clinical outcomes and patient satisfaction.

Hospital in Home (HIH) is the delivery of acute care services in a patient’s home as an alternative to hospitalization.¹ Compared with traditional inpatient care, HIH programs have been associated with reduced costs, as well as patient and caregiver satisfaction, diseasespecific outcomes, and mortality rates that were similar or improved compared with inpatient admissions.^1-4

The US Department of Veterans Affairs (VA) Veterans Health Administration (VHA) and other hospital systems are increasingly adopting HIH models.^2-4 At the time of this writing, there were 12 HIH programs in VHA (personal communication, D. Cooper, 2/28/2022). In addition to physicians and nurses, the interdisciplinary HIH team may include a pharmacist, social worker, and registered dietitian nutritionist (RDN).^2,5 HIH programs have been shown to improve nutritional status as measured by the Mini Nutritional Assessment Score, but overall, there is a paucity of published information regarding the provision of nutrition care in HIH.⁶ The role of the RDN has varied within VHA. Some sites, such as the Sacramento VA Medical Center in California, include a distinct RDN position on the HIH team, whereas others, such as the Spark M. Matsunaga VA Medical Center in Honolulu, Hawaii, and the James A. Haley Veterans’ Hospital in Tampa, Florida, consult clinic RDNs.

Since HIH programs typically treat conditions for which diet is an inherent part of the treatment (eg, congestive heart failure [CHF]), there is a need to precisely define the role of the RDN within the HIH model.^2,3,7 Drawing from my experience as an HIH RDN, I will describe how the inclusion of an RDN position within the HIH team is optimal for health care delivery and how HIH practitioners can best utilize RDN services.

RDN Role in HIH Team

Delegating nutrition services to an RDN enhances patient care by empowering HIH team members to function at the highest level of their scope of practice. RDNs have been recognized by physicians as the most qualified health care professionals to help patients with diet-related conditions, such as obesity, and physicians also have reported a desire for additional training in nutrition.⁸ Although home-health nurses have frequently performed nutrition assessments and interventions, survey results have indicated that many nurses do not feel confident in teaching complex nutritional information^.9 In my experience, many HIH patients are nutritionally complex, with more than one condition requiring nutrition intervention. For example, patients may be admitted to HIH for management of CHF, but they may also have diabetes mellitus (DM), obesity, and low socioeconomic status. The HIH RDN can address the nutrition aspects of these conditions, freeing time for physicians and nurses to focus on their respective areas of expertise.^9,10 Moreover, the RDN can also provide dietary education to the HIH team to increase their knowledge of nutritional topics and promote consistent messaging to patients.

Including an RDN on the HIH team enables patients to have comprehensive, personalized nutrition care. Rather than merely offering generalized nutrition education, RDNs are trained to provide medical nutrition therapy (MNT), which has been shown to improve health outcomes and be cost-effective for conditions such as type 2 DM, chronic kidney disease, hypertension, and obesity.^10,11 In MNT, RDNs use the standardized 4-stepnutrition care process (NCP).¹² The Table shows examples of how the NCP can be applied in HIH settings. Furthermore, in my experience, MNT from an RDN also contributes to patient satisfaction. Subjective observations from my team have indicated that patients often express more confidence in managing their diets by the time of HIH discharge.

RDNs can guide physicians and pharmacists in ordering oral nutrition supplements (ONS). Within the VHA, a “food first” approach is preferred to increase caloric intake, and patients must meet specific criteria for prescription of an ONS.¹³ Furthermore, ONS designed for specific medical conditions (eg, chronic kidney disease) are considered nonformulary and require an RDN evaluation.¹³ Including an RDN on the HIH team allows this evaluation process to begin early in the patient’s admission to the program and ensures that provision of ONS is clinically appropriate and cost-effective.

Care Coordination

HIH is highly interdisciplinary. Team members perform their respective roles and communicate with the team throughout the day. RDNs can help monitor patients and alert physicians for changes in blood glucose, gastrointestinal concerns, and weight. This is especially helpful for patients who do not have a planned nursing visit on the day of an RDN evaluation. The HIH RDN can also collaborate with other team members to address patient needs. For example, for patients with limited financial resources, the HIH RDN can provide nutrition education regarding cooking on a budget, and the HIH social worker can arrange free or low-cost meal services.

Tips

When hiring an HIH RDN, seek candidates with experience in inpatient, outpatient, and home care settings. As a hybrid of these 3 areas, the HIH RDN position requires a unique combination of acute care skills and health coaching. Additionally, in my experience, the HIH RDN interacts more frequently with the HIH team than other RDN colleagues, so it is important that candidates can work independently and take initiative. This type of position would not be suitable for entry-level RDNs.

Stagger HIH team visits to prevent overwhelming the patient and caregivers. Early in our program, my team quickly learned that patients and caregivers can feel overwhelmed with too many home visits upon admission to HIH. After seeing multiple HIH team members the same day, they were often too tired to focus well on diet education during my visit. Staggering visits (eg, completing the initial nutrition assessment 1 day to 1 week after the initial medical and pharmacy visits) has been an effective strategy to address this problem. Furthermore, some patients prefer that the initial RDN appointment is conducted by telephone, with an inperson reassessment the following week. In my experience, HIH workflow is dynamic by nature, so it is crucial to remain flexible and accommodate individual patient needs as much as possible.

Dietary behavior change is a long-term process, and restrictive hospital diets can be challenging to replicate at home. In a hospital setting, clinicians can order a specialized diet (eg, low sodium with fluid restriction for CHF patients), whereas efforts to implement these restrictions in the home setting can be cumbersome and negatively impact quality of life.^7,14 Nevertheless, the effectiveness of medical treatment is compromised when patients do not adhere to dietary recommendations. Meal delivery services that offer specialized diets can be a useful resource for patients and caregivers who are unable to cook, and the HIH RDN can assist patients in ordering these services.

HIH patients may vary in terms of readiness to make dietary changes, and in addition to nutrition education, nutrition counseling is usually needed to effect behavior change. My team has found that consideration of the transtheoretical/ stages of change model can be a helpful approach. ¹⁵ The HIH RDN can tailor nutrition interventions to the patient’s stage of change. For example, for patients in the precontemplation stage, the HIH RDN would focus on providing information and addressing emotional aspects of dietary change. In contrast, for patients in the action stage of change, the HIH RDN might emphasize behavioral skill training and social support.¹⁵ Particularly for patients in the early stages of change, it may be unrealistic to expect full adoption of the recommended diet within the 30 days of the HIH program. However, by acknowledging the reality of the patient’s stage of change, the HIH RDN and team can then collaborate to support the patient in moving toward the next stage. Patients who are not ready for dietary behavior change during the 30 days of HIH may benefit from longer-term support, and the HIH RDN can arrange followup care with an outpatient RDN.

Conclusions

As the HIH model continues to be adopted across the VHA and other health care systems, it is crucial to consider the value and expertise of an RDN for guiding nutrition care in the HIH setting. The HIH RDN contributes to optimal health care delivery by leading nutritional aspects of patient care, offering personalized MNT, and coordinating and collaborating with team members to meet individual patient needs. An RDN can serve as a valuable resource for nutrition information and enhance the team’s overall services, with the potential to impact clinical outcomes and patient satisfaction.

While cardiovascular mortality rates have declined, heart disease continues to be the leading cause of death in the US, and the number of people with cardiovascular disease (CVD) is rising.¹ CVD is more prevalent among military veterans than it is among nonveterans aged ≥ 25 years, and veteran status is associated with higher risk of incident heart disease after controlling for socioeconomic status, other medical diseases, depression, and lifestyle.^2-4 Combat exposure, posttraumatic stress disorder (PTSD), and Purple Heart commendation are associated with higher rates of CVD, including adverse cardiovascular events.^5-7 Many patients seeking care in the Veterans Health Administration (VHA), including those who undergo cardiac catheterization, meet the criteria for multimorbidity (defined as having ≥ 2 chronic diseases⁸), which is common among veterans.^9,10 Multimorbidity presents a challenge for lifestyle intervention, as different diets may be prescribed to treat different conditions, such as Dietary Approaches to Stop Hypertension, and low-glycemic diet for diabetes mellitus (DM). Veterans with CVD are often clinically complex and may require more multifaceted secondary prevention programs.

During the coronavirus 2019 (COVID-19) pandemic, effective secondary prevention intervention is needed more than ever. Older age, CVD, and common comorbidities, including hypertension, DM, and obesity, place patients at the highest risk for severe COVID-19 infection.¹¹ COVID-19 social distancing encourages vulnerable populations to stay home, which can make engaging in any levels of physical activity more challenging. The International Food Council found that 85% of adults have made a change to their food consumption pattern, including eating more, during the COVID-19 pandemic.¹² Thus, secondary CVD prevention programs for veterans need to provide treatment that addresses these specific challenges and can be delivered via telehealth for continuity of care after disruption of traditional services.

Nutrition may be the most powerful Ornish ICR component. The initial RCT conducted by Ornish and colleagues included only stress management training and a whole-food, plant-based (WFPB) diet, including grains, legumes, vegetables, fruits, nuts, and seeds. The trial found 91% of participants experienced reduced angina after only 24 days.¹⁵ The only single-component intervention study resulting in partial reversal of atherosclerosis was a WFPB diet-only study, which documented regression of atherosclerotic plaques after 5 years, using coronary angiography in 73% of participants, with arrested progression in the other 27%.²² Participants reported no cardiovascular AEs after 12 years.²³ Furthermore, a number of other recent studies have demonstrated the benefits of WFPB diet-only interventions for type 2 DM (T2DM), hypertension, and obesity.^24-27 The Heart Disease Reversal Program (HDRP) was developed to create an interdisciplinary lifestyle intervention that emphasized nutrition for a broad population of veterans with atherosclerotic CVD, of varying levels of functional ability, to promote comprehensive CVD risk reduction and bring heart disease reversal intervention into routine clinical practice.

Program Description 

The Mental Health, Cardiology, and Nutrition and Food services all approved the launch of HDRP. We contacted veterans by mail, and 11% expressed interest (Figure). Among patients who received the initial mailed letter (prior to our accepting staff referrals), only 5% of patients who enrolled in HDRP reported previously being told about or prescribed a WFPB diet by any health care provider (HCP). Currently, patients are primarily referred to HDRP by Cardiology, Primary Care, and Mental Health services.

Design

HDRP is an adaptation of interdisciplinary lifestyle interventions that have resulted in regression of atherosclerotic blockages confirmed with invasive coronary angiography.^15-17,22,28 HDRP currently is offered in a Behavioral Medicine Clinic at the Sacramento US Department of Veterans Affairs (VA) Medical Center (VAMC) in California. Program staff include a clinical health psychologist who organizes, coordinates, and act as the lead facilitator of the program; registered dietitians; clinical pharmacists; and a consulting physician. Patients engage in the 4-month core HDRP program in small cohorts (ie, 6-10 patients), and spouses/partners are highly encouraged to attend all sessions.

Components

Telephone screening. Patients are screened for the inclusion and exclusion criteria (Table 1). Patients engaging in a traditional CR program are included in the screening. Patients are informed that the program consists of lifestyle intervention, including emphasis on following a WFPB diet.

A psychologist delivers the physical activity component. Patients are encouraged to meet the American Heart Association/American College of Cardiology recommendations for aerobic exercise (at least 150 minutes of moderate intensity physical activity per week) through a walking program.³⁵ Patients with medical contraindications (eg, severe pain, mobility restrictions) are encouraged to follow the exercise/activity recommendations they had been given by their primary care provider (PCP), physical therapist, or other HCP.

A psychologist provides evidence-based cognitive behavioral stress management (CBSM) training, adapted from models developed for patients with stable ischemic heart disease, HIV/AIDS, and cancer.^36-38 CBSM is a psychotherapy grounded in stress/coping theory and cognitive behavioral theory of psychopathology that integrates cognitive restructuring, coping skills training, communication/assertiveness training, anger management, and mindfulness/acceptance-based approaches. Additional emphasis is placed on assisting patients’ adjustment to the lifestyle challenges for following a plant-based diet, dealing with food cravings and emotional eating, and connecting lifestyle change to patients’ deepest values and goals.

A clinical pharmacist conducts a medication reconciliation for each patient at baseline. The pharmacist consults with each patient’s PCP, cardiologist, and HDRP consulting physician, as needed, to ensure safe adjustments to medications. Pharmacists also provide education on medications at group sessions.

After completion of the 12-week core program, graduates are encouraged to attend the monthly graduates’ group indefinitely, and as often as they desire to promote maintenance of the disease reversal lifestyle. Patients are encouraged to complete our recommended fasting laboratory work every 3 to 6 months to facilitate maintenance of treatment gains.

Program Evaluation

Patients frequently reported that the group format was vital to their success. Patients requested a cooking class, yet we lacked a full teaching kitchen. Integrating plant-based meal samples at every session and cooking videos helped. Patients reported that 100% adherence to the WFPB diet led to significant changes in their food preferences, including a loss of interest in meat.³⁹ Patients encouraged us to keep the “disease reversal” language and focus. One veteran stated: “Disease reversal, that is the reason I called you when I got your letter.” Showing before and after images of coronary angiograms and cardiac positron emission tomography scans depicting regression of atherosclerotic plaque and restored myocardial perfusion were described as highly motivating and generated willingness to commit to a more aggressive lifestyle change.³¹

Patients routinely stated that they lacked understanding of their laboratory test results, which HDRP remedied. Some patients reported their adult children followed a plant-based diet, and our program resulted in a new commonality and source of bonding that was highly valued. Some patients reported that HDRP was helpful for controlling their COVID-19 anxiety and feeling in control of their health. Satisfaction surveys were completed by participants at the end of the core program, which demonstrated very high satisfaction with and acceptability of HDRP (Table 3).

COVID-19 Response

Face-to-face group appointments were converted to videoconferencing as a result of the COVID-19 pandemic. While HDRP always promoted the use of technology and mHealth tools, the pandemic led us to develop novel technology-based interventions.⁴⁰ One cohort transitioned from in-person to videoconferencing sessions, and 2 cohorts recently started this format and are ongoing. We have successfully used videoconferencing with Cisco Webex, the VA-approved backup platform, as we encountered technical barriers when using VA Video Connect. Program materials were shared electronically, and participants sent blood pressure/sugar logs by secure messaging. Guidance for online grocery shopping with home delivery was provided, and research on the benefits of the HDRP lifestyle on immune function was incorporated.

The stress management component incorporated coping with COVID-19, including normalizing common emotional difficulties with sheltering-in-place and quarantine, acknowledging and processing fear and anxiety related to being at very high risk for severe COVID-19. We presented heart disease reversal as an urgent and feasible goal during the pandemic both reducing risk of premature death and major adverse cardiovascular events in the long-term and also reducing personal risk of severe COVID complications. The new VA COVID Coach app was also presented as a resource. Reputable sources of COVID-19 and public health information were shared. Walking continued to be the primary recommended form of exercise, while indoor home exercise options were promoted during the periods of very poor air quality due to the widespread California fires and smoke.

Considering the research suggesting benefits of our intervention for treating T2DM,promoting sustained weight loss, and promoting comprehensive cardiometabolic risk reduction, we have begun accepting referrals for patients with any type of atherosclerotic CVD (eg, peripheral artery disease, carotid artery disease), patients with T2DM (without CVD), and patients with only a history of ischemic stroke or transient ischemic attack.^24-27 Vascular surgery has become a new referral source, primarily for patients with peripheral and carotid artery diseases. Finally, we are leveraging videoconferencing and accepting referrals across the VA Northern California Health Care System (VANCHCS)catchment (from the California-Oregon state border to the San Francisco Bay Area). This also helps address a long-standing problem with reaching the many rural veterans who live far from a VA clinic. We successfully implemented a consult/referral process within the EHR that is available to providers across VANCHCS.

Discussion

The efficacy and effectiveness of reversal programs are well established in intensive programs (eg, ICR), yet such programs have yet to be streamlined and disseminated broadly into routine clinical care. HDRP has endeavored to address this by emphasizing nutrition relative to other program components. We have learned that the words “disease reversal” are very often the reason patients initially reach out or accept referral to our program.

Consistent with past research on plant-based nutrition interventions, the group format was indispensable.⁴¹ Individual sessions with a clinical health psychologist enabled tailored feedback and education on how behavior changes could impact laboratory results and how certain psychosocial factors could support success. Participants reported that seeing significantly favorable laboratory results was highly motivating and confirmed the power of their lifestyle changes. Furthermore, a psychosocial health assessment with individual sessions promoted a tailored treatment plan with targeted clinical interventions, such as behavioral health education, motivational interviewing, and advanced methods, including cognitive behavioral therapy and techniques drawn from dialectical behavior therapy and acceptance and commitment therapy.

Veterans with multimorbidity face the difficult task of learning and maintaining a complex disease self-management program and implementing a lifestyle approach that is feasible, effective, promotes weight loss, and treats multiple conditions. HDRP is a model approach for this population, as demonstrated by a recent case report of a 65-year-old male veteran with atherosclerotic CVD, T2DM, hypertension, and myasthenia gravis who had 2 heart attacks within 2 months.⁴² His neurologic disease precluded significant physical activity. Although he achieved some initial weight loss through lifestyle changes, he continued to have daily angina despite optimal and aggressive cardiology management. After enrolling in HDRP and adopting the WFPB diet, the patient reported almost complete resolution of angina within 1 month, similar to that found in other studies.¹⁵

The literature suggests that concern over the acceptability of plant-based diets and patients’ ability to adhere to them long-term may be misplaced. A review paper on dietary interventions lasting > 1 year found that 51 to 61% of vegetarian and vegan study participants had maintained dietary adherence, while 20 to 55% of omnivorous diet intervention participants adhered to their study diets.⁴³ Remarkably, there were no statistically significant differences in the acceptability of the vegan, vegetarian, or omnivorous diets in the studies reviewed.⁴³ Recent dietary research also suggests that providing patients with higher goals (eg, adopting a vegan diet instead of only moderate dietary changes) results in greater weight loss and maintenance.²⁶ HDRP provides training on consumption of whole plant foods, which may offer patients a unique advantage for maximizing results and higher adherence over time.

Limitations

Hands-on cooking instruction was not provided at our VAMC. The total time of the intervention was significantly less in HDRP (25 hours) than it was for the Ornish ICR program (72 hours), which may hinder long-term adherence. Without an exercise facility, we were not able to provide more detailed exercise instruction and supervised exercise.

Program Improvements Planned

There are a number of improvements that are planned for HDRP. First, the program anticipates requesting medical clearance at the telephone screening stage for self-referred patients. Second, HDRP will provide regular presentations on the program to VAMC clinics and community-based outpatient clinics, including reminders about inclusion/exclusion criteria and the referral process, and to solicit feedback on processes. Third, we hope to routinely provide education and address common questions and concerns of HCPs, including expected results. Fourth, we would like to lengthen the patient commitment to HDRP (eg, 1- to 2-year commitment to the graduate group), consistent with other HDRPs.²⁸ Fifth, we hope to further integrate technology-based components to promote behavior change/maintenance, such as automated text messaging.

Conclusions

Although our patient population was self-selected for participation, early program evaluation demonstrates high acceptability. Very few patients had ever been told about a heart disease reversing lifestyle, and we found direct-to-patient clinical outreach an effective method for launching a disease reversal program (optimally timed with HCP presentations). Furthermore, the program is adaptable to current restrictions on in-person appointments due to the COVID-19 pandemic, and much more convenient for rural veterans who live far from any VA clinic. Being able to offer sustainable health care for individuals during unexpected public health crises is critically important. Additionally, treating veterans who are most vulnerable to pandemic illness due to existing medical conditions, such as CVD, should be a high priority. Last, HDRP also may represent a novel integrated treatment for COVID-19 anxiety and secondary CVD prevention, as lifestyle habits are optimized to improve chronic diseases that elevate risk for severe COVID-19 infection and mortality, as well as including coping strategies consistent with evidence-based psychotherapies for anxiety disorders.⁴⁴

We believe that beyond the clinical benefits to patients, there is significant value and benefit added to the health care system by offering an intervention within the “disease reversal” paradigm. Efforts of the health care team to reverse a disease can be considered the highest aim of medicine and health care.⁴⁵

Acknowledgments

This work was supported by the US Department of Veterans Affairs. We give special thanks to David M. Gellerman, MD, PhD, and David W. Schafer, PsyD, for providing Mental Health Service support for initiating the Heart Disease Reversal Program, and to Joseph Giorgio, PsyD (Program Manager, Integrated Care Program) for sustaining it. We thank Amogh Bhat, MD, Chief of Cardiology, for his continued support and partnership with the Cardiology Department. We express thanks to Stephanie Mohney, RDN (Chief, Nutrition and Food Service), Amy Klotz, RDN (Supervisory Dietician), Sian M. Carr-Lopez, PharmD (Associate Chief of Pharmacy, Primary Care), and Michelle Rand, PharmD, CACP (Anticoagulation Clinical Pharmacist-Supervisor) for their staff support of this interdisciplinary program. We thank the patients and their families for their participation in the program and commitment to the lifestyle changes. We also thank the following individuals for their contributions to this program: Lisa Wagaman, RDN, Karen Soong, PharmD, Sara S. Ali, PharmD, Suzan Hua, PharmD, and Stephen Cooperman.

While cardiovascular mortality rates have declined, heart disease continues to be the leading cause of death in the US, and the number of people with cardiovascular disease (CVD) is rising.¹ CVD is more prevalent among military veterans than it is among nonveterans aged ≥ 25 years, and veteran status is associated with higher risk of incident heart disease after controlling for socioeconomic status, other medical diseases, depression, and lifestyle.^2-4 Combat exposure, posttraumatic stress disorder (PTSD), and Purple Heart commendation are associated with higher rates of CVD, including adverse cardiovascular events.^5-7 Many patients seeking care in the Veterans Health Administration (VHA), including those who undergo cardiac catheterization, meet the criteria for multimorbidity (defined as having ≥ 2 chronic diseases⁸), which is common among veterans.^9,10 Multimorbidity presents a challenge for lifestyle intervention, as different diets may be prescribed to treat different conditions, such as Dietary Approaches to Stop Hypertension, and low-glycemic diet for diabetes mellitus (DM). Veterans with CVD are often clinically complex and may require more multifaceted secondary prevention programs.

During the coronavirus 2019 (COVID-19) pandemic, effective secondary prevention intervention is needed more than ever. Older age, CVD, and common comorbidities, including hypertension, DM, and obesity, place patients at the highest risk for severe COVID-19 infection.¹¹ COVID-19 social distancing encourages vulnerable populations to stay home, which can make engaging in any levels of physical activity more challenging. The International Food Council found that 85% of adults have made a change to their food consumption pattern, including eating more, during the COVID-19 pandemic.¹² Thus, secondary CVD prevention programs for veterans need to provide treatment that addresses these specific challenges and can be delivered via telehealth for continuity of care after disruption of traditional services.

Nutrition may be the most powerful Ornish ICR component. The initial RCT conducted by Ornish and colleagues included only stress management training and a whole-food, plant-based (WFPB) diet, including grains, legumes, vegetables, fruits, nuts, and seeds. The trial found 91% of participants experienced reduced angina after only 24 days.¹⁵ The only single-component intervention study resulting in partial reversal of atherosclerosis was a WFPB diet-only study, which documented regression of atherosclerotic plaques after 5 years, using coronary angiography in 73% of participants, with arrested progression in the other 27%.²² Participants reported no cardiovascular AEs after 12 years.²³ Furthermore, a number of other recent studies have demonstrated the benefits of WFPB diet-only interventions for type 2 DM (T2DM), hypertension, and obesity.^24-27 The Heart Disease Reversal Program (HDRP) was developed to create an interdisciplinary lifestyle intervention that emphasized nutrition for a broad population of veterans with atherosclerotic CVD, of varying levels of functional ability, to promote comprehensive CVD risk reduction and bring heart disease reversal intervention into routine clinical practice.

Program Description 

The Mental Health, Cardiology, and Nutrition and Food services all approved the launch of HDRP. We contacted veterans by mail, and 11% expressed interest (Figure). Among patients who received the initial mailed letter (prior to our accepting staff referrals), only 5% of patients who enrolled in HDRP reported previously being told about or prescribed a WFPB diet by any health care provider (HCP). Currently, patients are primarily referred to HDRP by Cardiology, Primary Care, and Mental Health services.

Design

HDRP is an adaptation of interdisciplinary lifestyle interventions that have resulted in regression of atherosclerotic blockages confirmed with invasive coronary angiography.^15-17,22,28 HDRP currently is offered in a Behavioral Medicine Clinic at the Sacramento US Department of Veterans Affairs (VA) Medical Center (VAMC) in California. Program staff include a clinical health psychologist who organizes, coordinates, and act as the lead facilitator of the program; registered dietitians; clinical pharmacists; and a consulting physician. Patients engage in the 4-month core HDRP program in small cohorts (ie, 6-10 patients), and spouses/partners are highly encouraged to attend all sessions.

Components

Telephone screening. Patients are screened for the inclusion and exclusion criteria (Table 1). Patients engaging in a traditional CR program are included in the screening. Patients are informed that the program consists of lifestyle intervention, including emphasis on following a WFPB diet.

A psychologist delivers the physical activity component. Patients are encouraged to meet the American Heart Association/American College of Cardiology recommendations for aerobic exercise (at least 150 minutes of moderate intensity physical activity per week) through a walking program.³⁵ Patients with medical contraindications (eg, severe pain, mobility restrictions) are encouraged to follow the exercise/activity recommendations they had been given by their primary care provider (PCP), physical therapist, or other HCP.

A psychologist provides evidence-based cognitive behavioral stress management (CBSM) training, adapted from models developed for patients with stable ischemic heart disease, HIV/AIDS, and cancer.^36-38 CBSM is a psychotherapy grounded in stress/coping theory and cognitive behavioral theory of psychopathology that integrates cognitive restructuring, coping skills training, communication/assertiveness training, anger management, and mindfulness/acceptance-based approaches. Additional emphasis is placed on assisting patients’ adjustment to the lifestyle challenges for following a plant-based diet, dealing with food cravings and emotional eating, and connecting lifestyle change to patients’ deepest values and goals.

A clinical pharmacist conducts a medication reconciliation for each patient at baseline. The pharmacist consults with each patient’s PCP, cardiologist, and HDRP consulting physician, as needed, to ensure safe adjustments to medications. Pharmacists also provide education on medications at group sessions.

After completion of the 12-week core program, graduates are encouraged to attend the monthly graduates’ group indefinitely, and as often as they desire to promote maintenance of the disease reversal lifestyle. Patients are encouraged to complete our recommended fasting laboratory work every 3 to 6 months to facilitate maintenance of treatment gains.

Program Evaluation

Patients frequently reported that the group format was vital to their success. Patients requested a cooking class, yet we lacked a full teaching kitchen. Integrating plant-based meal samples at every session and cooking videos helped. Patients reported that 100% adherence to the WFPB diet led to significant changes in their food preferences, including a loss of interest in meat.³⁹ Patients encouraged us to keep the “disease reversal” language and focus. One veteran stated: “Disease reversal, that is the reason I called you when I got your letter.” Showing before and after images of coronary angiograms and cardiac positron emission tomography scans depicting regression of atherosclerotic plaque and restored myocardial perfusion were described as highly motivating and generated willingness to commit to a more aggressive lifestyle change.³¹

Patients routinely stated that they lacked understanding of their laboratory test results, which HDRP remedied. Some patients reported their adult children followed a plant-based diet, and our program resulted in a new commonality and source of bonding that was highly valued. Some patients reported that HDRP was helpful for controlling their COVID-19 anxiety and feeling in control of their health. Satisfaction surveys were completed by participants at the end of the core program, which demonstrated very high satisfaction with and acceptability of HDRP (Table 3).

COVID-19 Response

Face-to-face group appointments were converted to videoconferencing as a result of the COVID-19 pandemic. While HDRP always promoted the use of technology and mHealth tools, the pandemic led us to develop novel technology-based interventions.⁴⁰ One cohort transitioned from in-person to videoconferencing sessions, and 2 cohorts recently started this format and are ongoing. We have successfully used videoconferencing with Cisco Webex, the VA-approved backup platform, as we encountered technical barriers when using VA Video Connect. Program materials were shared electronically, and participants sent blood pressure/sugar logs by secure messaging. Guidance for online grocery shopping with home delivery was provided, and research on the benefits of the HDRP lifestyle on immune function was incorporated.

The stress management component incorporated coping with COVID-19, including normalizing common emotional difficulties with sheltering-in-place and quarantine, acknowledging and processing fear and anxiety related to being at very high risk for severe COVID-19. We presented heart disease reversal as an urgent and feasible goal during the pandemic both reducing risk of premature death and major adverse cardiovascular events in the long-term and also reducing personal risk of severe COVID complications. The new VA COVID Coach app was also presented as a resource. Reputable sources of COVID-19 and public health information were shared. Walking continued to be the primary recommended form of exercise, while indoor home exercise options were promoted during the periods of very poor air quality due to the widespread California fires and smoke.

Considering the research suggesting benefits of our intervention for treating T2DM,promoting sustained weight loss, and promoting comprehensive cardiometabolic risk reduction, we have begun accepting referrals for patients with any type of atherosclerotic CVD (eg, peripheral artery disease, carotid artery disease), patients with T2DM (without CVD), and patients with only a history of ischemic stroke or transient ischemic attack.^24-27 Vascular surgery has become a new referral source, primarily for patients with peripheral and carotid artery diseases. Finally, we are leveraging videoconferencing and accepting referrals across the VA Northern California Health Care System (VANCHCS)catchment (from the California-Oregon state border to the San Francisco Bay Area). This also helps address a long-standing problem with reaching the many rural veterans who live far from a VA clinic. We successfully implemented a consult/referral process within the EHR that is available to providers across VANCHCS.

Discussion

The efficacy and effectiveness of reversal programs are well established in intensive programs (eg, ICR), yet such programs have yet to be streamlined and disseminated broadly into routine clinical care. HDRP has endeavored to address this by emphasizing nutrition relative to other program components. We have learned that the words “disease reversal” are very often the reason patients initially reach out or accept referral to our program.

Consistent with past research on plant-based nutrition interventions, the group format was indispensable.⁴¹ Individual sessions with a clinical health psychologist enabled tailored feedback and education on how behavior changes could impact laboratory results and how certain psychosocial factors could support success. Participants reported that seeing significantly favorable laboratory results was highly motivating and confirmed the power of their lifestyle changes. Furthermore, a psychosocial health assessment with individual sessions promoted a tailored treatment plan with targeted clinical interventions, such as behavioral health education, motivational interviewing, and advanced methods, including cognitive behavioral therapy and techniques drawn from dialectical behavior therapy and acceptance and commitment therapy.

Veterans with multimorbidity face the difficult task of learning and maintaining a complex disease self-management program and implementing a lifestyle approach that is feasible, effective, promotes weight loss, and treats multiple conditions. HDRP is a model approach for this population, as demonstrated by a recent case report of a 65-year-old male veteran with atherosclerotic CVD, T2DM, hypertension, and myasthenia gravis who had 2 heart attacks within 2 months.⁴² His neurologic disease precluded significant physical activity. Although he achieved some initial weight loss through lifestyle changes, he continued to have daily angina despite optimal and aggressive cardiology management. After enrolling in HDRP and adopting the WFPB diet, the patient reported almost complete resolution of angina within 1 month, similar to that found in other studies.¹⁵

The literature suggests that concern over the acceptability of plant-based diets and patients’ ability to adhere to them long-term may be misplaced. A review paper on dietary interventions lasting > 1 year found that 51 to 61% of vegetarian and vegan study participants had maintained dietary adherence, while 20 to 55% of omnivorous diet intervention participants adhered to their study diets.⁴³ Remarkably, there were no statistically significant differences in the acceptability of the vegan, vegetarian, or omnivorous diets in the studies reviewed.⁴³ Recent dietary research also suggests that providing patients with higher goals (eg, adopting a vegan diet instead of only moderate dietary changes) results in greater weight loss and maintenance.²⁶ HDRP provides training on consumption of whole plant foods, which may offer patients a unique advantage for maximizing results and higher adherence over time.

Limitations

Hands-on cooking instruction was not provided at our VAMC. The total time of the intervention was significantly less in HDRP (25 hours) than it was for the Ornish ICR program (72 hours), which may hinder long-term adherence. Without an exercise facility, we were not able to provide more detailed exercise instruction and supervised exercise.

Program Improvements Planned

There are a number of improvements that are planned for HDRP. First, the program anticipates requesting medical clearance at the telephone screening stage for self-referred patients. Second, HDRP will provide regular presentations on the program to VAMC clinics and community-based outpatient clinics, including reminders about inclusion/exclusion criteria and the referral process, and to solicit feedback on processes. Third, we hope to routinely provide education and address common questions and concerns of HCPs, including expected results. Fourth, we would like to lengthen the patient commitment to HDRP (eg, 1- to 2-year commitment to the graduate group), consistent with other HDRPs.²⁸ Fifth, we hope to further integrate technology-based components to promote behavior change/maintenance, such as automated text messaging.

Conclusions

Although our patient population was self-selected for participation, early program evaluation demonstrates high acceptability. Very few patients had ever been told about a heart disease reversing lifestyle, and we found direct-to-patient clinical outreach an effective method for launching a disease reversal program (optimally timed with HCP presentations). Furthermore, the program is adaptable to current restrictions on in-person appointments due to the COVID-19 pandemic, and much more convenient for rural veterans who live far from any VA clinic. Being able to offer sustainable health care for individuals during unexpected public health crises is critically important. Additionally, treating veterans who are most vulnerable to pandemic illness due to existing medical conditions, such as CVD, should be a high priority. Last, HDRP also may represent a novel integrated treatment for COVID-19 anxiety and secondary CVD prevention, as lifestyle habits are optimized to improve chronic diseases that elevate risk for severe COVID-19 infection and mortality, as well as including coping strategies consistent with evidence-based psychotherapies for anxiety disorders.⁴⁴

We believe that beyond the clinical benefits to patients, there is significant value and benefit added to the health care system by offering an intervention within the “disease reversal” paradigm. Efforts of the health care team to reverse a disease can be considered the highest aim of medicine and health care.⁴⁵

Acknowledgments

This work was supported by the US Department of Veterans Affairs. We give special thanks to David M. Gellerman, MD, PhD, and David W. Schafer, PsyD, for providing Mental Health Service support for initiating the Heart Disease Reversal Program, and to Joseph Giorgio, PsyD (Program Manager, Integrated Care Program) for sustaining it. We thank Amogh Bhat, MD, Chief of Cardiology, for his continued support and partnership with the Cardiology Department. We express thanks to Stephanie Mohney, RDN (Chief, Nutrition and Food Service), Amy Klotz, RDN (Supervisory Dietician), Sian M. Carr-Lopez, PharmD (Associate Chief of Pharmacy, Primary Care), and Michelle Rand, PharmD, CACP (Anticoagulation Clinical Pharmacist-Supervisor) for their staff support of this interdisciplinary program. We thank the patients and their families for their participation in the program and commitment to the lifestyle changes. We also thank the following individuals for their contributions to this program: Lisa Wagaman, RDN, Karen Soong, PharmD, Sara S. Ali, PharmD, Suzan Hua, PharmD, and Stephen Cooperman.

While cardiovascular mortality rates have declined, heart disease continues to be the leading cause of death in the US, and the number of people with cardiovascular disease (CVD) is rising.¹ CVD is more prevalent among military veterans than it is among nonveterans aged ≥ 25 years, and veteran status is associated with higher risk of incident heart disease after controlling for socioeconomic status, other medical diseases, depression, and lifestyle.^2-4 Combat exposure, posttraumatic stress disorder (PTSD), and Purple Heart commendation are associated with higher rates of CVD, including adverse cardiovascular events.^5-7 Many patients seeking care in the Veterans Health Administration (VHA), including those who undergo cardiac catheterization, meet the criteria for multimorbidity (defined as having ≥ 2 chronic diseases⁸), which is common among veterans.^9,10 Multimorbidity presents a challenge for lifestyle intervention, as different diets may be prescribed to treat different conditions, such as Dietary Approaches to Stop Hypertension, and low-glycemic diet for diabetes mellitus (DM). Veterans with CVD are often clinically complex and may require more multifaceted secondary prevention programs.

During the coronavirus 2019 (COVID-19) pandemic, effective secondary prevention intervention is needed more than ever. Older age, CVD, and common comorbidities, including hypertension, DM, and obesity, place patients at the highest risk for severe COVID-19 infection.¹¹ COVID-19 social distancing encourages vulnerable populations to stay home, which can make engaging in any levels of physical activity more challenging. The International Food Council found that 85% of adults have made a change to their food consumption pattern, including eating more, during the COVID-19 pandemic.¹² Thus, secondary CVD prevention programs for veterans need to provide treatment that addresses these specific challenges and can be delivered via telehealth for continuity of care after disruption of traditional services.

Nutrition may be the most powerful Ornish ICR component. The initial RCT conducted by Ornish and colleagues included only stress management training and a whole-food, plant-based (WFPB) diet, including grains, legumes, vegetables, fruits, nuts, and seeds. The trial found 91% of participants experienced reduced angina after only 24 days.¹⁵ The only single-component intervention study resulting in partial reversal of atherosclerosis was a WFPB diet-only study, which documented regression of atherosclerotic plaques after 5 years, using coronary angiography in 73% of participants, with arrested progression in the other 27%.²² Participants reported no cardiovascular AEs after 12 years.²³ Furthermore, a number of other recent studies have demonstrated the benefits of WFPB diet-only interventions for type 2 DM (T2DM), hypertension, and obesity.^24-27 The Heart Disease Reversal Program (HDRP) was developed to create an interdisciplinary lifestyle intervention that emphasized nutrition for a broad population of veterans with atherosclerotic CVD, of varying levels of functional ability, to promote comprehensive CVD risk reduction and bring heart disease reversal intervention into routine clinical practice.

Program Description 

The Mental Health, Cardiology, and Nutrition and Food services all approved the launch of HDRP. We contacted veterans by mail, and 11% expressed interest (Figure). Among patients who received the initial mailed letter (prior to our accepting staff referrals), only 5% of patients who enrolled in HDRP reported previously being told about or prescribed a WFPB diet by any health care provider (HCP). Currently, patients are primarily referred to HDRP by Cardiology, Primary Care, and Mental Health services.

Design

HDRP is an adaptation of interdisciplinary lifestyle interventions that have resulted in regression of atherosclerotic blockages confirmed with invasive coronary angiography.^15-17,22,28 HDRP currently is offered in a Behavioral Medicine Clinic at the Sacramento US Department of Veterans Affairs (VA) Medical Center (VAMC) in California. Program staff include a clinical health psychologist who organizes, coordinates, and act as the lead facilitator of the program; registered dietitians; clinical pharmacists; and a consulting physician. Patients engage in the 4-month core HDRP program in small cohorts (ie, 6-10 patients), and spouses/partners are highly encouraged to attend all sessions.

Components

Telephone screening. Patients are screened for the inclusion and exclusion criteria (Table 1). Patients engaging in a traditional CR program are included in the screening. Patients are informed that the program consists of lifestyle intervention, including emphasis on following a WFPB diet.

A psychologist delivers the physical activity component. Patients are encouraged to meet the American Heart Association/American College of Cardiology recommendations for aerobic exercise (at least 150 minutes of moderate intensity physical activity per week) through a walking program.³⁵ Patients with medical contraindications (eg, severe pain, mobility restrictions) are encouraged to follow the exercise/activity recommendations they had been given by their primary care provider (PCP), physical therapist, or other HCP.

A psychologist provides evidence-based cognitive behavioral stress management (CBSM) training, adapted from models developed for patients with stable ischemic heart disease, HIV/AIDS, and cancer.^36-38 CBSM is a psychotherapy grounded in stress/coping theory and cognitive behavioral theory of psychopathology that integrates cognitive restructuring, coping skills training, communication/assertiveness training, anger management, and mindfulness/acceptance-based approaches. Additional emphasis is placed on assisting patients’ adjustment to the lifestyle challenges for following a plant-based diet, dealing with food cravings and emotional eating, and connecting lifestyle change to patients’ deepest values and goals.

A clinical pharmacist conducts a medication reconciliation for each patient at baseline. The pharmacist consults with each patient’s PCP, cardiologist, and HDRP consulting physician, as needed, to ensure safe adjustments to medications. Pharmacists also provide education on medications at group sessions.

After completion of the 12-week core program, graduates are encouraged to attend the monthly graduates’ group indefinitely, and as often as they desire to promote maintenance of the disease reversal lifestyle. Patients are encouraged to complete our recommended fasting laboratory work every 3 to 6 months to facilitate maintenance of treatment gains.

Program Evaluation

Patients frequently reported that the group format was vital to their success. Patients requested a cooking class, yet we lacked a full teaching kitchen. Integrating plant-based meal samples at every session and cooking videos helped. Patients reported that 100% adherence to the WFPB diet led to significant changes in their food preferences, including a loss of interest in meat.³⁹ Patients encouraged us to keep the “disease reversal” language and focus. One veteran stated: “Disease reversal, that is the reason I called you when I got your letter.” Showing before and after images of coronary angiograms and cardiac positron emission tomography scans depicting regression of atherosclerotic plaque and restored myocardial perfusion were described as highly motivating and generated willingness to commit to a more aggressive lifestyle change.³¹

Patients routinely stated that they lacked understanding of their laboratory test results, which HDRP remedied. Some patients reported their adult children followed a plant-based diet, and our program resulted in a new commonality and source of bonding that was highly valued. Some patients reported that HDRP was helpful for controlling their COVID-19 anxiety and feeling in control of their health. Satisfaction surveys were completed by participants at the end of the core program, which demonstrated very high satisfaction with and acceptability of HDRP (Table 3).

COVID-19 Response

Face-to-face group appointments were converted to videoconferencing as a result of the COVID-19 pandemic. While HDRP always promoted the use of technology and mHealth tools, the pandemic led us to develop novel technology-based interventions.⁴⁰ One cohort transitioned from in-person to videoconferencing sessions, and 2 cohorts recently started this format and are ongoing. We have successfully used videoconferencing with Cisco Webex, the VA-approved backup platform, as we encountered technical barriers when using VA Video Connect. Program materials were shared electronically, and participants sent blood pressure/sugar logs by secure messaging. Guidance for online grocery shopping with home delivery was provided, and research on the benefits of the HDRP lifestyle on immune function was incorporated.

The stress management component incorporated coping with COVID-19, including normalizing common emotional difficulties with sheltering-in-place and quarantine, acknowledging and processing fear and anxiety related to being at very high risk for severe COVID-19. We presented heart disease reversal as an urgent and feasible goal during the pandemic both reducing risk of premature death and major adverse cardiovascular events in the long-term and also reducing personal risk of severe COVID complications. The new VA COVID Coach app was also presented as a resource. Reputable sources of COVID-19 and public health information were shared. Walking continued to be the primary recommended form of exercise, while indoor home exercise options were promoted during the periods of very poor air quality due to the widespread California fires and smoke.

Considering the research suggesting benefits of our intervention for treating T2DM,promoting sustained weight loss, and promoting comprehensive cardiometabolic risk reduction, we have begun accepting referrals for patients with any type of atherosclerotic CVD (eg, peripheral artery disease, carotid artery disease), patients with T2DM (without CVD), and patients with only a history of ischemic stroke or transient ischemic attack.^24-27 Vascular surgery has become a new referral source, primarily for patients with peripheral and carotid artery diseases. Finally, we are leveraging videoconferencing and accepting referrals across the VA Northern California Health Care System (VANCHCS)catchment (from the California-Oregon state border to the San Francisco Bay Area). This also helps address a long-standing problem with reaching the many rural veterans who live far from a VA clinic. We successfully implemented a consult/referral process within the EHR that is available to providers across VANCHCS.

Discussion

The efficacy and effectiveness of reversal programs are well established in intensive programs (eg, ICR), yet such programs have yet to be streamlined and disseminated broadly into routine clinical care. HDRP has endeavored to address this by emphasizing nutrition relative to other program components. We have learned that the words “disease reversal” are very often the reason patients initially reach out or accept referral to our program.

Consistent with past research on plant-based nutrition interventions, the group format was indispensable.⁴¹ Individual sessions with a clinical health psychologist enabled tailored feedback and education on how behavior changes could impact laboratory results and how certain psychosocial factors could support success. Participants reported that seeing significantly favorable laboratory results was highly motivating and confirmed the power of their lifestyle changes. Furthermore, a psychosocial health assessment with individual sessions promoted a tailored treatment plan with targeted clinical interventions, such as behavioral health education, motivational interviewing, and advanced methods, including cognitive behavioral therapy and techniques drawn from dialectical behavior therapy and acceptance and commitment therapy.

Veterans with multimorbidity face the difficult task of learning and maintaining a complex disease self-management program and implementing a lifestyle approach that is feasible, effective, promotes weight loss, and treats multiple conditions. HDRP is a model approach for this population, as demonstrated by a recent case report of a 65-year-old male veteran with atherosclerotic CVD, T2DM, hypertension, and myasthenia gravis who had 2 heart attacks within 2 months.⁴² His neurologic disease precluded significant physical activity. Although he achieved some initial weight loss through lifestyle changes, he continued to have daily angina despite optimal and aggressive cardiology management. After enrolling in HDRP and adopting the WFPB diet, the patient reported almost complete resolution of angina within 1 month, similar to that found in other studies.¹⁵

The literature suggests that concern over the acceptability of plant-based diets and patients’ ability to adhere to them long-term may be misplaced. A review paper on dietary interventions lasting > 1 year found that 51 to 61% of vegetarian and vegan study participants had maintained dietary adherence, while 20 to 55% of omnivorous diet intervention participants adhered to their study diets.⁴³ Remarkably, there were no statistically significant differences in the acceptability of the vegan, vegetarian, or omnivorous diets in the studies reviewed.⁴³ Recent dietary research also suggests that providing patients with higher goals (eg, adopting a vegan diet instead of only moderate dietary changes) results in greater weight loss and maintenance.²⁶ HDRP provides training on consumption of whole plant foods, which may offer patients a unique advantage for maximizing results and higher adherence over time.

Limitations

Hands-on cooking instruction was not provided at our VAMC. The total time of the intervention was significantly less in HDRP (25 hours) than it was for the Ornish ICR program (72 hours), which may hinder long-term adherence. Without an exercise facility, we were not able to provide more detailed exercise instruction and supervised exercise.

Program Improvements Planned

There are a number of improvements that are planned for HDRP. First, the program anticipates requesting medical clearance at the telephone screening stage for self-referred patients. Second, HDRP will provide regular presentations on the program to VAMC clinics and community-based outpatient clinics, including reminders about inclusion/exclusion criteria and the referral process, and to solicit feedback on processes. Third, we hope to routinely provide education and address common questions and concerns of HCPs, including expected results. Fourth, we would like to lengthen the patient commitment to HDRP (eg, 1- to 2-year commitment to the graduate group), consistent with other HDRPs.²⁸ Fifth, we hope to further integrate technology-based components to promote behavior change/maintenance, such as automated text messaging.

Conclusions

Although our patient population was self-selected for participation, early program evaluation demonstrates high acceptability. Very few patients had ever been told about a heart disease reversing lifestyle, and we found direct-to-patient clinical outreach an effective method for launching a disease reversal program (optimally timed with HCP presentations). Furthermore, the program is adaptable to current restrictions on in-person appointments due to the COVID-19 pandemic, and much more convenient for rural veterans who live far from any VA clinic. Being able to offer sustainable health care for individuals during unexpected public health crises is critically important. Additionally, treating veterans who are most vulnerable to pandemic illness due to existing medical conditions, such as CVD, should be a high priority. Last, HDRP also may represent a novel integrated treatment for COVID-19 anxiety and secondary CVD prevention, as lifestyle habits are optimized to improve chronic diseases that elevate risk for severe COVID-19 infection and mortality, as well as including coping strategies consistent with evidence-based psychotherapies for anxiety disorders.⁴⁴

We believe that beyond the clinical benefits to patients, there is significant value and benefit added to the health care system by offering an intervention within the “disease reversal” paradigm. Efforts of the health care team to reverse a disease can be considered the highest aim of medicine and health care.⁴⁵

Acknowledgments

This work was supported by the US Department of Veterans Affairs. We give special thanks to David M. Gellerman, MD, PhD, and David W. Schafer, PsyD, for providing Mental Health Service support for initiating the Heart Disease Reversal Program, and to Joseph Giorgio, PsyD (Program Manager, Integrated Care Program) for sustaining it. We thank Amogh Bhat, MD, Chief of Cardiology, for his continued support and partnership with the Cardiology Department. We express thanks to Stephanie Mohney, RDN (Chief, Nutrition and Food Service), Amy Klotz, RDN (Supervisory Dietician), Sian M. Carr-Lopez, PharmD (Associate Chief of Pharmacy, Primary Care), and Michelle Rand, PharmD, CACP (Anticoagulation Clinical Pharmacist-Supervisor) for their staff support of this interdisciplinary program. We thank the patients and their families for their participation in the program and commitment to the lifestyle changes. We also thank the following individuals for their contributions to this program: Lisa Wagaman, RDN, Karen Soong, PharmD, Sara S. Ali, PharmD, Suzan Hua, PharmD, and Stephen Cooperman.