Obstructive Sleep Apnea and Acute Coronary Syndromes: Etiology,Risk, and Management

Growing evidence highlights the important role of post-hospitalization care (i.e., secondary prevention) for patients with an acute coronary syndrome (ACS). While secondary prevention therapies are available that improve patient outcomes, receipt of those treatments by patients is suboptimal. Cardiac rehabilitation/secondary prevention (CR/SP) services are systematic, effective models of care that improve delivery of preventive therapies and patient outcomes after ACS, but unfortunately, patient participation in CR/SP has been suboptimal, due to patient-, provider-, and system-based barriers. Systematic processes, including automatic referral processes, help reduce these barriers and improve CR/SP participation, along with the associated health benefits. Strength of physician endorsement of CR/SP participation is another key step in improving CR/SP participation and patient outcomes following ACS. Accountability measures for CR/SP referral and enrollment, including performance measures and other quality of care methods, may help improve CR/SP delivery. Early evidence suggests that these measures have helped improve referral of eligible patients to CR/SP programs.     

Digital home-based multidisciplinary cardiac rehabilitation: How to counteract physical inactivity during the COVID-19 pandemic

Introduction and ObjectivesCenter-based cardiac rehabilitation (CR) programs have been forced to close due to COVID-19. Alternative delivery models to maintain access to CR programs and to avoid physical inactivity should be considered. The aim of this study was to assess physical activity (PA) levels after completing a home-based digital CR program.MethodsA total of 116 cardiovascular disease (CVD) patients (62.6±8.9 years, 95 male) who had been attending a face-to-face CR program were recruited and assessed (baseline and at three months) on the following parameters: PA, sedentary behavior, adherence, cardiovascular and non-cardiovascular symptoms, feelings toward the pandemic, dietary habits, risk factor control, safety and adverse events. The intervention consisted of a multidisciplinary digital CR program, including regular patient assessment, and exercise, educational and psychological group sessions.ResultsNinety-eight CVD patients successfully completed all the online assessments (15.5% drop-out rate). A favorable main effect of time was an increase in moderate to vigorous PA and a decrease in sedentary time at three months. Almost half of the participants completed at least one online exercise training session per week and attended at least one of the online educational sessions. No major adverse events were reported and only one minor event occurred.ConclusionDuring the pandemic, levels of moderate to vigorous PA improved after three months of home-based CR in CVD patients with previous experience in a face-to-face CR model. Diversified CR programs with a greater variety of content tailored to individual preferences are needed to meet the motivational and clinical requirements of CVD patients.     

Barriers to participation in and adherence to cardiac rehabilitation programs: a critical literature review

Despite the documented evidence of the benefits of cardiac rehabilitation (CR) in enhancing recovery and reducing mortality following a myocardial infarction, only about one third of patients participate in such programs. Adherence to these programs is an even bigger problem, with only about one third maintaining attendance in these programs after 6 months. This review summarizes research that has investigated barriers to participation and adherence to CR programs. Some consistent factors found to be associated with participation in CR programs include lack of referral by physicians, associated illness, specific cardiac diagnoses, reimbursement, self-efficacy, perceived benefits of CR, distance and transportation, self-concept, self-motivation, family composition, social support, self-esteem, and occupation. Factors associated with non-adherence include being older, female gender, having fewer years of formal education, perceiving the benefits of CR, having angina, and being less physically active during leisure time. However, many of the studies have methodologic flaws, with very few controlled, randomized studies, making the findings tentative. Problems in objectively measuring adherence to unstructured, non-hospital-based programs, which are an increasingly popular alternative to traditional programs, are discussed. Suggestions for reducing barriers to participation and adherence to CR programs, as well as for future research aimed at clearly identifying these barriers, are discussed.     

Underutilization of cardiac rehabilitation: Unique challenges for women

Underutilization of cardiac rehabilitation/secondary prevention programs (CR) has been well documented in women despite studies demonstrating improved outcomes and decreased mortality. Barriers to participation in CR are categorized as provider, environmental, and patient related. Provider barriers include a historically male and middle-aged referral population, physician misconceptions regarding who should be referred to and who can benefit from CR, lack of geographically accessible programs, and miscommunication between physicians and facilities. Environmental barriers include financial and transportation issues. Patient barriers mirror some provider barriers, including misconceptions as to whether women should participate in and can benefit from CR. Because women have many responsibilities at work and home, CR may be a low priority, and various issues can preclude participation in group exercise. This review addresses sex-specific issues in relation to CR utilization and explores potential solutions to these barriers.     

Cardiovascular Disease Prevention and Implications for Worksite Health Promotion Programs in Brazil

Economic growth, an aging population, and changes in lifestyle patterns have contributed to the rise in cardiovascular disease (CVD) in Brazil. Worksite health and wellness programs are viewed as a potentially viable means to address the increase in disease burden in Brazil. The purpose of the present review is to investigate actions proposed by the Brazilian Government for CVD prevention and the current state of worksite health promotion. Our review of literature found that the Brazilian Government has been showing a growing interest in developing and promoting CVD preventive strategies, primarily through better control of known risk factors (i.e. smoking, obesity, physical inactivity, high cholesterol, high blood pressure, and high blood glucose). Current initiatives are considered positive steps toward better CVD prevention in Brazil. With respect to worksite health and wellness, additional work is needed to determine optimal program delivery models, financial implications and individual/population compliance with healthier lifestyle choices.     

Physician Factors Affecting Cardiac Rehabilitation Referral and Patient Enrollment: A Systematic Review

Physicians play an important role in CR referral and enrollment. Despite established benefits and recommendations, cardiac rehabilitation (CR) enrollment rates are pervasively low. The reasons cardiac patients are missing from CR programs are multifactorial and include provider factors. A number of studies have now investigated physician factors associated with referral to CR programs and patient enrollment. The objective of this study was to qualitatively and systematically review this literature. A literature search of MEDLINE, PsycINFO, CINAHL, Embase, and EBM was conducted for published articles from database inception to October 2011. Overall, 17 articles were included following a process of independent review of each article by 2 authors. Seven (41.2%) were graded as good quality according to Downs and Black criteria. There were no randomized controlled trials. Results showed that medical specialty (ie, cardiac specialists more likely to refer; n = 8 studies) and other physician‐reported reasons (eg, physician report of their reasons for CR referral and physician sex) were related to referral. Physician factors related to patient enrollment in CR were physician endorsement, medical specialty, being referred, and physician attitudes toward CR. Physician factors are consistently related to CR referral and enrollment. The role of physician endorsements in promoting patient enrollment should be optimized and exploited.     

Gender differences in referral to cardiac rehabilitation programs after revascularization

BACKGROUND: This study examines the influence of gender on the healthcare provider's secondary prevention instruction and cardiac rehabilitation (CR) referral after coronary revascularization procedures such as balloon angioplasty/coronary stenting and coronary bypass surgery (CABG). Cardiac rehabilitation decreases mortality and morbidity, yet only a small percentage of women and men are referred to these programs. The patient population of our university-affiliated CR program consisted of 88% men and 12% women. METHODS: In a matched case observational study, 80 patients (40 men, 40 women) who had undergone coronary revascularization procedures between 1997 and 1998 completed a questionnaire on secondary prevention instruction and written referral to CR programs. Patients were matched for age and coronary revascularization procedure. RESULTS: Women were less likely to be instructed on secondary prevention strategies and CR or referred to CR as compared to men despite being matched for age and undergoing the same procedure. The data demonstrate a gender difference in hospital teaching and referral information for CR after revascularization (P < 0.001). Being a woman was associated with a decreased likelihood of receiving a physician referral to CR after revascularization (P < 0.001). CONCLUSION: The instruction of patients concerning secondary prevention and CR postrevascularization procedures is poor. Within that group, women were far less likely to have CR discussed or referrals made by healthcare professionals. This study demonstrates the need for education initiatives of all healthcare providers on the comprehensive nature and benefits of CR in the secondary prevention of cardiovascular disease, with a particular emphasis on women.     

Cardiac Rehabilitation in the United States

Coronary heart disease (CHD) is a significant cause of morbidity and mortality in the United States (US). In addition to this, many of the risk factors of CHD, such as obesity, sedentary lifestyle, diabetes mellitus, and poor nutrition, are disproportionately high in the US. Despite the many known benefits of cardiac rehabilitation (CR), referral and participation rates in these programs are paradoxically low. Over the course of this review, we will discuss some of the many benefits of CR, some of the risk factors for CHD in the US, and factors that affect referral and participation in these programs.     

The need for long-term personalized management of frail CVD patients by rehabilitation and telemonitoring: A framework

Due to advances in cardiovascular medicine and preventive cardiology, patients benefit from a better prognosis, even in case of significant disease burden such as acute and chronic coronary syndromes, advanced valvular heart disease and chronic heart failure. These advances have allowed CVD patients to increase their life expectancy, but on the other hand also experience aging-related syndromes such as frailty. Despite being underrecognized, frailty is a critical, common, and co-existent condition among older CVD patients, leading to exercise intolerance and compromised adherence to cardiovascular rehabilitation (CR). Moreover, frail patients need a different approach for CR and are at very high risk for adverse events, but yet are underrepresented in conventional CR. Fortunately, recent advances have been made in technology, allowing remote monitoring, coaching and supervision of CVD patients in secondary prevention programs with promising benefits. Similarly, we hypothesized that such programs should also be implemented to treat frailty in CVD patients. However, considering frail patients’ particular needs and challenges, telerehabilitation interventions should thus be appropriately adapted. Our purpose is to provide, for the first time and based on expert opinions, a framework of how such a cardiac telerehabilitation program could be developed and implemented to manage a prevention and rehabilitation program for CVD patients with frailty.     

Cardiac rehabilitation: the forgotten intervention.

OBJECTIVE: To examine the influence of cardiac patients' demographic and health characteristics on physicians' cardiac rehabilitation (CR) referral practice and patients' attendance at such programs. DESIGN: A retrospective, systematic review of consecutive health records. SETTING: A tertiary care centre and the two associated CR programs in a Western Canadian city. PATIENTS: One thousand, three hundred and twenty-eight adult patients (21 years of age or older) discharged following acute myocardial infarction, percutaneous transluminal coronary angioplasty (PTCA) and/or coronary artery bypass graft surgery between September 1, 1996 and August 31, 1997. MAIN RESULTS: There were 1245 surviving patients. Evidence of attendance at a CR program was 28.4%, while auditable evidence of referral to a CR program was 23.9%. Stepwise logistic regression revealed that ability to speak English (OR 9.56) living in a city (OR 3.97) and current smoking (OR 1.51) were associated with an increased likelihood, whereas having a history of chronic obstructive pulmonary disease or asthma (OR 0.53), being 70 years of age or older (OR 0.42), having a current admission for PTCA (OR 0.32) and having a history of neurological or cognitive impairment (OR 0.26) were associated with a decreased likelihood of CR attendance. Sex, nature of coronary artery disease risk factors, incidence of postevent complications and pre-event cardiac status (including New York Heart Association status and number of previous events) were not associated with patients' CR attendance. CONCLUSIONS: This study suggests that there is an inconsistent and poorly documented approach to referral of patients to CR programs for reasons that remain unclear. These findings provide a foundation for development and testing of enhanced referral mechanisms and of innovative means to provide rehabilitation services to patients who are at risk for not being referred to or attending CR programs.     

Cardiac Rehabilitation in India

Cardiovascular diseases (CVDs) are the leading cause of death and disability in India. Moreover, mortality following an acute myocardial infarction is high, which may be due to gaps in secondary prevention in general and a lack of cardiac rehabilitation (CR) services in particular. This review discusses the availability of CR in India, its putative role in reducing adverse outcomes over the long-term and suggests a road map for future research to enhance CR in this country. Currently, there is limited evidence, conducted in India, demonstrating CR efficacy. Moreover, there is currently limited availability of outpatient CR programs in India. Even so, there is consensus that CR is effective and essential in the CVD population. Therefore, efforts are needed to continue CR research in India and facilitate clinical implementation.     

Effect of an American Heart Association Get With the Guidelines program-based clinical pathway on referral and enrollment into cardiac rehabilitation after acute myocardial infarction

Cardiac rehabilitation (CR)/secondary prevention programs are an important part of patient care after acute myocardial infarction (AMI). However, only 10% to 15% of eligible patients enroll in such programs. The purpose of this study was to evaluate the effect of an American Heart Association Get With the Guidelines (GWTG)-based clinical pathway on referral and enrollment into CR after AMI. Patients (n = 780) admitted to a single center during an 18-month period with AMI and discharged to home were evaluated retrospectively for referral and enrollment into CR programs. A total of 714 patients (92%) were on the GWTG pathway; 392 (55%) were referred and 135 (19%) were enrolled into CR. Higher referral was associated with pathway use (odds ratio [OR] 2.3, 95% confidence interval [CI] 1.1 to 4.9, p = 0.03), percutaneous coronary intervention (OR 3.1, 95% CI 1.9 to 5.2, p <0.0001), and in-patient physical therapy consultation (OR 13, 95% CI 8.2 to 20.5, p <0.0001). Ethnicity did not affect referral, but was the only variable associated with lower enrollment. Hispanic and black patients had 92% (OR 0.08, 95% CI 0.01 to 0.55, p = 0.02) and 57% (OR 0.43, 95% CI 0.19 to 1.05, p = 0.06) lower odds to enroll compared with white patients, respectively. In conclusion, use of the American Heart Association GWTG pathway showed a significantly higher referral rate to CR after AMI than previously reported in the literature. Nonetheless, most referred patients did not enroll. Strategies to bridge the gap between referral and enrollment in CR should be incorporated into AMI clinical pathways, with special emphasis on increasing enrollment in ethnic minorities.     

National survey of cardiac rehabilitation programs in Portugal--situation in 1999.

In order to study the status of Cardiac Rehabilitation (CR) in Portugal in 1998 and 1999, a questionnaire was drafted and sent to all the heads of the CR centres in Portugal, with questions about their nature, location, staff, type of activity, movement, diagnosis leading to patient referral and funding. The rate of coronary patients admitted to the programs existing in the cities of Lisbon and Oporto was calculated. The total number of patients included in all the CR centres in both cities was subtracted from the total number of public hospital discharges of coronary patients in 1998, patients admitted due to acute ischaemic coronary syndrome or for revascularization in Portugal and in each of the two cities. We found that there were CR centres in only the two main cities (Lisbon and Oporto), with organization and types of activity in accordance with international guidelines and recommendations. The overall admission rate of coronary patients in Portugal in 1998 was 0.7%, with 0.9% and 1.9% in Lisbon and Oporto, respectively. These rates are well below the figures for countries of the European Union and for the USA. It is very important to increase the establishment and spread of CR centres throughout the country, creating the financial conditions and promoting a change in culture regarding physical activity and CR on the part of the Portuguese population, patients and health care providers responsible for the referral of cardiac patients to a therapeutic intervention that can increase quality of life and longevity. Doctors should be involved in programs that will train them to recognize the benefits of physical activity and secondary prevention.     

Cardiac Rehabilitation Series: Canada

Cardiovascular disease is among the leading causes of mortality and morbidity in Canada. Cardiac rehabilitation (CR) has a long robust history here, and there are established clinical practice guidelines. While the effectiveness of CR in the Canadian context is clear, only 34% of eligible patients participate, and strategies to increase access for under-represented groups (e.g., women, ethnic minority groups) are not yet universally applied. Identified CR barriers include lack of referral and physician recommendation, travel and distance, and low perceived need. Indeed there is now a national policy position recommending systematic inpatient referral to CR in Canada. Recent development of 30 CR quality indicators and the burgeoning national CR registry will enable further measurement and improvement of the quality of CR care in Canada. Finally, the Canadian Association of CR is one of the founding members of the International Council of Cardiovascular Prevention and Rehabilitation, to promote CR globally.     

Impacts of the COVID-19 Pandemic on Cardiac Rehabilitation Delivery around the World

Background:We investigated impacts of COVID-19 on cardiac rehabilitation (CR) delivery around the globe, including virtual delivery, as well as effects on providers and patients.Methods:In this cross-sectional study, a piloted survey was administered to CR programs globally via REDCap from April to June 2020. The 50 members of the International Council of Cardiovascular Prevention and Rehabilitation (ICCPR) and personal contacts facilitated program identification.Results:Overall, 1062 (18.3% program response rate) responses were received from 70/111 (63.1% country response rate) countries in the world with existent CR programs. Of these, 367 (49.1%) programs reported they had stopped CR delivery, and 203 (27.1%) stopped temporarily (mean = 8.3 ± 2.8 weeks). Alternative models were delivered in 322 (39.7%) programs, primarily through low-tech modes (n = 226,19.3%). Furthermore, 353 (30.2%) respondents were re-deployed, and 276 (37.3%) felt the need to work due to fear of losing their job, despite the perceived risk of contracting COVID-19 (mean = 30.0% ± 27.4/100). Also, 266 (22.5%) reported anxiety, 241(20.4%) were concerned about exposing their family, 113 (9.7%) reported increased workload to transition to remote delivery, and 105 (9.0%) were juggling caregiving responsibilities during business hours. Patients were often contacting staff regarding grocery shopping for heart-healthy foods (n = 333, 28.4%), how to use technology to interact with the program (n = 329, 27.9%), having to stop their exercise because they have no place to exercise (n = 303, 25.7%), and their risk of death from COVID-19 due to pre-existing cardiovascular disease (n = 249, 21.2%). Respondents perceived staff (n = 488, 41.3%) and patient (n = 453, 38.6%) personal protective equipment, as well as COVID-19 screening (n = 414, 35.2%), and testing (n = 411, 35.0%) as paramount to in-person service resumption.Conclusion:Given the estimated number of CR programs globally, these results suggest approximately 4400 CR programs globally have ceased or temporarily stopped service delivery. Those that remain open are implementing new technologies to ensure their patients receive CR safely, despite the challenges.Highlights:

• – COVID-19 has impacted cardiac rehabilitation (CR) delivery around the globe.
• – In this cross-sectional study, a survey was completed by 1062 (18.3%) CR programs from 70 (63.1%) countries.
• – The pandemic has resulted in at least temporary cessation of ~75% of CR programs, with others ceasing initiation of new patients, reducing components delivered, and/or changing of mode delivery with little opportunity for planning and training.
• – There is also significant psychosocial and economic impact on CR providers.
• – Alternative CR model (e.g., home-based, virtual) reimbursement advocacy is needed, to ensure safe, accessible secondary prevention delivery.

     

Cardiac rehabilitation in Portugal--developments between 1998 and 2004.

INTRODUCTION: Cardiac rehabilitation (CR) has recognized value in cardiovascular disease. However, according to the 1998 survey of the Portuguese Study Group on Exercise Pathophysiology and Cardiac Rehabilitation, it was still underused in Portugal, with much lower referral rates than other European countries. The aim of the present work was to assess developments in CR in Portugal between 1998 and 2004. METHODS: A form requesting information on general characteristics, technical staff, program phases and components, and funding, was sent to all CR centers. The rate of referral to CR was calculated by comparing these data with official data from hospital discharges for acute coronary syndromes in 2004. RESULTS: There was a twofold increase in the number of CR centers, mainly because of new public hospitals. The programs are well organized and have actually been improved in recent years. The overall admission rate in 2004 was 1.5%, which, despite representing an increase compared to 1998, is still much lower than the rates of other European countries. Most of the problems previously reported, including the size and location of centers, training, funding and educational and cultural issues, have not been overcome. CONCLUSION: Although there have been some improvements, the number of patients who are referred to CR in Portugal is still too low. It is essential to address and to resolve most of the issues that are limiting patients' access to this treatment.     

Current role and future perspectives of cardiac rehabilitation in coronary heart disease

Ischaemic heart disease (IHD) is a major cause of morbidity and mortality worldwide. While there have been major advances in this field, these patients are still a higher risk subgroup. As such, strategies to mitigate risk and tailor secondary prevention measures are of the utmost relevance. Cardiac rehabilitation (CR), encompassing several domains including exercise training, cardiovascular risk factor optimization, nutritional and psychological assessments, as well as other ancillary interventions has shown to be one of the pillars in the contemporary management of patients with IHD. Indeed, CR is associated with several benefits in this population, ranging from functional capacity to improvements in outcomes. Whilst this, there are still several issues concerning the optimal application of CR which are still not fully ascertained, such as lack of referral and completion, as well as questions related to programme design (particularly among patients with multiple comorbidities). In this review, we aim at presenting a pragmatic overview on the current role of CR in the management of individuals with IHD, while also discussing some of the caveats in the current data, as well as future concepts which could help improve the uptake and personalization of this pivotal time-tested intervention.     

Cardiac Rehabilitation in Europe

Cardiovascular disease (CVD) remains the main cause of death for men in most European countries, and in all for women. While mortality rates have been declining in most countries, hospital discharge for CVD has been stable since 2004, increasing the pool of patients eligible for cardiac rehabilitation (CR). The physical rehabilitation of patients with CVD has been practiced in Europe to varying degrees since the early 1970s with most countries now engaged in Phase I through Phase III programs. Funding for CR comes from a variety of sources including patient pay, private insurance, retirement and/or obligatory and governmental subsidy. CR is practiced based on best available evidence but participation rates range between 30–50% of eligible patients. Participation rates present one of several challenges and opportunities for future research in Europe, along with assessment of long-term CR outcomes and better extension to primary prevention.     

Referral rate and outcomes of cardiac rehabilitation after cardiac catheterization in a large Canadian city

PURPOSE: The benefits of cardiac rehabilitation (CR) for patients with coronary artery disease are extensive and compelling, demonstrating reductions in mortality. However, some reports suggest that only 10% to 20% of eligible patients currently participate in formal CR programs. The purpose of this study was to identify the proportion of patients referred to CR in a large Canadian city, and to determine their statistically adjusted survival rates relative to patients not referred to CR. METHODS: Subjects eligible for this study included all adult residents with coronary artery disease from 1995 to 1999 in the Alberta Provincial Project for Outcome Assessment in Coronary Heart Disease registry. All 5,081 patients who survived 6 months or more after catheterization were included in the analysis. Survival data were adjusted using a Cox proportional hazards model. RESULTS: Referral to a CR program (28.9% of patients) was significantly more likely for young male patients who had undergone a prior revascularization procedure, presented with an ejection fraction exceeding 50%, and did not report cerebrovascular, peripheral vascular, or renal disease. Crude hazard ratios indicated that referral to a CR program remained significantly associated with lower mortality after control was used for clinical, anatomic, treatment and comorbid conditions recorded at catheterization (hazard ratio, 0.68; 95% confidence interval, 0.51-0.90; P = .005). CONCLUSIONS: Despite the proven efficacy of CR in clinical trials, fewer than one third of the patients undergoing cardiac catheterization are referred to a CR program. The better survival outcomes noted for patients referred to CR suggests that there is an opportunity to improve care and outcomes through increased referral of patients to such programs.