Temporal Trends and Factors Associated With Cardiac Rehabilitation Referral Among Patients Hospitalized With Heart Failure: Findings From Get With The Guidelines-Heart Failure Registry

Artificial intelligence approaches for phenotyping heart failure in U.S. Veterans Health Administration electronic health record

AIMS

Heart failure (HF) is a clinical syndrome with no definitive diagnostic tests. HF registries are often based on manual reviews of medical records of hospitalized HF patients identified using International Classification of Diseases (ICD) codes. However, most HF patients are not hospitalized, and manual review of big electronic health record (EHR) data is not practical. The US Department of Veterans Affairs (VA) has the largest integrated healthcare system in the nation, and an estimated 1.5 million patients have ICD codes for HF (HF ICD-code universe) in their VA EHR. The objective of our study was to develop artificial intelligence (AI) models to phenotype HF in these patients.

METHODS AND RESULTS

The model development cohort (n = 20 000: training, 16 000; validation 2000; testing, 2000) included 10 000 patients with HF and 10 000 without HF who were matched by age, sex, race, inpatient/outpatient status, hospital, and encounter date (within 60 days). HF status was ascertained by manual chart reviews in VA's External Peer Review Program for HF (EPRP-HF) and non-HF status was ascertained by the absence of ICD codes for HF in VA EHR. Two clinicians annotated 1000 random snippets with HF-related keywords and labelled 436 as HF, which was then used to train and test a natural language processing (NLP) model to classify HF (positive predictive value or PPV, 0.81; sensitivity, 0.77). A machine learning (ML) model using linear support vector machine architecture was trained and tested to classify HF using EPRP-HF as cases (PPV, 0.86; sensitivity, 0.86). From the 'HF ICD-code universe', we randomly selected 200 patients (gold standard cohort) and two clinicians manually adjudicated HF (gold standard HF) in 145 of those patients by chart reviews. We calculated NLP, ML, and NLP + ML scores and used weighted F scores to derive their optimal threshold values for HF classification, which resulted in PPVs of 0.83, 0.77, and 0.85 and sensitivities of 0.86, 0.88, and 0.83, respectively. HF patients classified by the NLP + ML model were characteristically and prognostically similar to those with gold standard HF. All three models performed better than ICD code approaches: one principal hospital discharge diagnosis code for HF (PPV, 0.97; sensitivity, 0.21) or two primary outpatient encounter diagnosis codes for HF (PPV, 0.88; sensitivity, 0.54).

CONCLUSIONS

These findings suggest that NLP and ML models are efficient AI tools to phenotype HF in big EHR data to create contemporary HF registries for clinical studies of effectiveness, quality improvement, and hypothesis generation.

Cardiac Rehabilitation Use After Heart Failure Hospitalization Associated With Advanced Heart Failure Center Status

PURPOSE

Cardiac rehabilitation (CR) is an evidence-based, guideline-endorsed therapy for patients with heart failure with reduced ejection fraction (HFrEF) but is broadly underutilized. Identifying structural factors contributing to increased CR use may inform quality improvement efforts. The objective here was to associate hospitalization at a center providing advanced heart failure (HF) therapies and subsequent CR participation among patients with HFrEF.

METHODS

A retrospective analysis was performed on a 20% sample of Medicare beneficiaries primarily hospitalized with an HFrEF diagnosis between January 2008 and December 2018. Outpatient claims were used to identify CR use (no/yes), days to first session, number of attended sessions, and completion of 36 sessions. The association between advanced HF status (hospitals performing heart transplantation or ventricular assist device implantations) and CR participation was evaluated with logistic regression, accounting for patient, hospital, and regional factors.

RESULTS

Among 143 392 Medicare beneficiaries, 29 487 (20.6%) were admitted to advanced HF centers (HFCs) and 5317 (3.7%) attended a single CR session within 1 yr of discharge. In multivariable analysis, advanced HFC status was associated with significantly greater relative odds of participating in CR (OR = 2.20: 95% CI, 2.08-2.33; P < .001) and earlier initiation of CR participation (-8.5 d; 95% CI, -12.6 to 4.4; P < .001). Advanced HFC status had little to no association with the intensity of CR participation (number of visits or 36 visit completion).

CONCLUSIONS

Medicare beneficiaries hospitalized for HF were more likely to attend CR after discharge if admitted to an advanced HFC than a nonadvanced HFC.

Temporal Trends in Cardiac Rehabilitation Participation and Its Core Components: A Nationwide Cohort Study From the Netherlands

PURPOSE

Patient- and disease-specific data on cardiac rehabilitation (CR) participation and changes over time are limited. The objective of this study was to describe time trends in CR participation between 2013 and 2019 and provides insights into the utilization of CR components.

METHODS

Patients with cardiovascular disease (CVD) with an indication for CR were enrolled between 2013 and 2019. Dutch health insurance claims data were used to identify CR participation and its components.

RESULTS

In total, 106 212 patients with CVD were included of which 37% participated in CR. Participation significantly increased from 28% in 2013 to 41% in 2016 but remained unchanged thereafter. Participation was highest in the youngest age groups (<50 yrs 52%; 50-65 yrs 50%), men (48%), patients with ST-segment elevation myocardial infarction (73%), non-ST-segment elevation myocardial infarction (59%), and coronary artery bypass grafting (82%). In contrast, it was the lowest in the oldest age group (≥85 yrs 8%), women (30%), and in patients with heart failure (11%). Most participants in CR received referral plus an admission session (97%) and exercise training (82%), whereas complementary services related to dietary (14%) and mental health counseling (10%) had a low utilization.

CONCLUSIONS

CR participation rates increased to 41% in 2016 but remained unchanged thereafter. Participation modulators included age, sex, CVD diagnosis, and undergoing a cardiothoracic procedure. Education and exercise sessions were frequently adopted, but dietary and mental health counseling had a low utilization rate. These findings suggest the need for reinvigorated referral and novel enrollment strategies in specific CVD subgroups to further promote CR participation and its associated underutilized adjunctive services.

Exercise-based cardiac rehabilitation for adults with heart failure

BACKGROUND

People with heart failure experience substantial disease burden that includes low exercise tolerance, poor health-related quality of life (HRQoL), increased risk of mortality and hospital admission, and high healthcare costs. The previous 2018 Cochrane review reported that exercise-based cardiac rehabilitation (ExCR) compared to no exercise control shows improvement in HRQoL and hospital admission amongst people with heart failure, as well as possible reduction in mortality over the longer term, and that these reductions appear to be consistent across patient and programme characteristics. Limitations noted by the authors of this previous Cochrane review include the following: (1) most trials were undertaken in patients with heart failure with reduced (< 45%) ejection fraction (HFrEF), and women, older people, and those with heart failure with preserved (≥ 45%) ejection fraction (HFpEF) were under-represented; and (2) most trials were undertaken in a hospital or centre-based setting.

OBJECTIVES

To assess the effects of ExCR on mortality, hospital admission, and health-related quality of life of adults with heart failure.

SEARCH METHODS

We searched CENTRAL, MEDLINE, Embase, CINAHL, PsycINFO and Web of Science without language restriction on 13 December 2021. We also checked the bibliographies of included studies, identified relevant systematic reviews, and two clinical trials registers.

SELECTION CRITERIA

We included randomised controlled trials (RCTs) that compared ExCR interventions (either exercise only or exercise as part of a comprehensive cardiac rehabilitation) with a follow-up of six months or longer versus a no-exercise control (e.g. usual medical care). The study population comprised adults (≥ 18 years) with heart failure - either HFrEF or HFpEF.

DATA COLLECTION AND ANALYSIS

We used standard Cochrane methods. Our primary outcomes were all-cause mortality, mortality due to heart failure, all-cause hospital admissions, heart failure-related hospital admissions, and HRQoL. Secondary outcomes were costs and cost-effectiveness. We used GRADE to assess the certainty of the evidence.

MAIN RESULTS

We included 60 trials (8728 participants) with a median of six months' follow-up. For this latest update, we identified 16 new trials (2945 new participants), in addition to the previously identified 44 trials (5783 existing participants). Although the existing evidence base predominantly includes patients with HFrEF, with New York Heart Association (NYHA) classes II and III receiving centre-based ExCR programmes, a growing body of trials includes patients with HFpEF with ExCR undertaken in a home-based setting. All included trials employed a usual care comparator with a formal no-exercise intervention as well as a wide range of active comparators, such as education, psychological intervention, or medical management. The overall risk of bias in the included trials was low or unclear, and we mostly downgraded the certainty of evidence of outcomes upon GRADE assessment. There was no evidence of a difference in the short term (up to 12 months' follow-up) in the pooled risk of all-cause mortality when comparing ExCR versus usual care (risk ratio (RR) 0.93, 95% confidence interval (CI) 0.71 to 1.21; absolute effects 5.0% versus 5.8%; 34 trials, 36 comparisons, 3941 participants; low-certainty evidence). Only a few trials reported information on whether participants died due to heart failure. Participation in ExCR versus usual care likely reduced the risk of all-cause hospital admissions (RR 0.69, 95% CI 0.56 to 0.86; absolute effects 15.9% versus 23.8%; 23 trials, 24 comparisons, 2283 participants; moderate-certainty evidence) and heart failure-related hospital admissions (RR 0.82, 95% CI 0.49 to 1.35; absolute effects 5.6% versus 6.4%; 10 trials; 10 comparisons, 911 participants; moderate-certainty evidence) in the short term. Participation in ExCR likely improved short-term HRQoL as measured by the Minnesota Living with Heart Failure (MLWHF) questionnaire (lower scores indicate better HRQoL and a difference of 5 points or more indicates clinical importance; mean difference (MD) -7.39 points, 95% CI -10.30 to -4.77; 21 trials, 22 comparisons, 2699 participants; moderate-certainty evidence). When pooling HRQoL data measured by any questionnaire/scale, we found that ExCR may improve HRQoL in the short term, but the evidence is very uncertain (33 trials, 37 comparisons, 4769 participants; standardised mean difference (SMD) -0.52, 95% CI -0.70 to -0.34; very-low certainty evidence). ExCR effects appeared to be consistent across different models of ExCR delivery: centre- versus home-based, exercise dose, exercise only versus comprehensive programmes, and aerobic training alone versus aerobic plus resistance programmes.

AUTHORS' CONCLUSIONS

This updated Cochrane review provides additional randomised evidence (16 trials) to support the conclusions of the previous 2018 version of the review. Compared to no exercise control, whilst there was no evidence of a difference in all-cause mortality in people with heart failure, ExCR participation likely reduces the risk of all-cause hospital admissions and heart failure-related hospital admissions, and may result in important improvements in HRQoL. Importantly, this updated review provides additional evidence supporting the use of alternative modes of ExCR delivery, including home-based and digitally-supported programmes. Future ExCR trials need to focus on the recruitment of traditionally less represented heart failure patient groups including older patients, women, and those with HFpEF.

Exercise-based cardiac rehabilitation for adults with heart failure - 2023 Cochrane systematic review and meta-analysis

AIMS

Despite strong evidence, access to exercise-based cardiac rehabilitation (ExCR) remains low across global healthcare systems. We provide a contemporary update of the Cochrane review randomized trial evidence for ExCR for adults with heart failure (HF) and compare different delivery modes: centre-based, home-based (including digital support), and both (hybrid).

METHODS AND RESULTS

Databases, bibliographies of previous systematic reviews and included trials, and trials registers were searched with no language restrictions. Randomized controlled trials, recruiting adults with HF, assigned to either ExCR or a no-exercise control group, with follow-up of ≥6 months were included. Two review authors independently screened titles for inclusion, extracted trial and patient characteristics, outcome data, and assessed risk of bias. Outcomes of mortality, hospitalization, and health-related quality of life (HRQoL) were pooled across trials using meta-analysis at short-term (≤12 months) and long-term follow-up (>12 months) and stratified by delivery mode. Sixty trials (8728 participants) were included. In the short term, compared to control, ExCR did not impact all-cause mortality (relative risk [RR] 0.93; 95% confidence interval [CI] 0.71-1.21), reduced all-cause hospitalization (RR 0.69; 95% CI 0.56-0.86, number needed to treat: 13, 95% CI 9-22), and was associated with a clinically important improvement in HRQoL measured by the Minnesota Living with Heart Failure Questionnaire (MLWHF) overall score (mean difference: -7.39; 95% CI -10.30 to -4.47). Improvements in outcomes with ExCR was seen across centre, home (including digitally supported), and hybrid settings. A similar pattern of results was seen in the long term (mortality: RR 0.87, 95% CI 0.72-1.04; all-cause hospitalization: RR 0.84, 95% CI 0.70-1.01, MLWHF: -9.59, 95% CI -17.48 to -1.50).

CONCLUSIONS

To improve global suboptimal levels of uptake for HF patients, global healthcare systems need to routinely recommend ExCR and offer a choice of mode of delivery, dependent on an individual patient's level of risk and complexity.

Effects of Comprehensive Outpatient Cardiac Rehabilitation on Exercise Capacity, Functional Status, and Quality of Life in People With Heart Failure: A Systematic Review and Meta-Analysis

PURPOSE

The purpose of this study was to systematically review and conduct a meta-analysis to examine the impact of comprehensive outpatient cardiac rehabilitation on exercise capacity, functional status, and quality of life in patients with heart failure.

METHODS

PubMed, Embase, and CINAHL were searched using keywords and MeSH terms on heart failure and cardiac rehabilitation. Randomized clinical trials published in English using outpatient exercise-based cardiac rehabilitation in patients with heart failure were included. The Grading of Recommendations Assessment, Development, and Evaluation was utilized for quality appraisal. Pooled estimates were computed using standardized mean differences (SMDs) and 95% CIs. Primary outcomes were functional status (6-minute walk distance, quality of life, exercise capacity using peak oxygen consumption, muscle strength, and endurance).

RESULTS

Eleven randomized controlled trials including 1523 participants ranging from 45 to 80 years old and an intervention duration ranging from 2 to 26 weeks were analyzed. Pooled results indicated significant improvements with comprehensive cardiac rehabilitation on 6-minute walk distance (SMD = 0.30; 95% CI = 0.06 to 0.54) and oxygen consumption (SMD = 0.23; 95% CI = 0.06 to 0.40). However, there was no additional benefit for the quality of life beyond that seen in the comparison groups.

CONCLUSION

Results of this study suggest that comprehensive outpatient cardiac rehabilitation is associated with significantly better clinical outcomes than single-component exercise programs in cardiac rehabilitation settings, multicomponent exercise in noncardiac rehabilitation settings, or no exercise.

IMPACT

Heart failure is significantly associated with an increased risk of poor exercise tolerance. Despite the proven benefit of cardiac rehabilitation on exercise tolerance and physical activities from individual randomized clinical trials, questions regarding its impact on clinical outcomes such as exercise capacity, functional status, and quality of life remain inadequate. This systematic review and meta-analysis provides strong evidence supporting comprehensive outpatient cardiac rehabilitation for improving clinical outcomes in heart failure.

Exercise-based cardiac rehabilitation in women with heart failure: a review of enrollment, adherence, and outcomes

Exercise-based cardiac rehabilitation (CR) is an evidence-based recommendation for patients with stable heart failure (HF). Less clear is how effective exercise-based CR is for women with HF. The aim of this review was to synthesize the evidence for the effects of exercise-based CR on mortality, hospitalizations, exercise capacity, and quality of life (QOL) among women with HF. We identified 18 studies comprising 4917 patients, of which 1714 were women. The interventions evaluated consisted of various combinations of supervised in-hospital and out-patient sessions as well as home-based programs that included aerobic (walking, treadmill, bicycle) and resistance training. The interventions ranged from 12 to 54 weeks, with a frequency of 2-7 sessions per week, lasting from 30 to 105 min per session. Because of a paucity of sex-specific analyses of the outcomes, it was not possible to draw conclusions for women. There was limited evidence for mortality benefit for men or women participating in exercise-based CR. There was more substantial evidence for reductions in hospitalizations for the participants. Generally, exercise training improved exercise capacity. The effects of exercise-based CR on QOL were mixed with most studies favoring CR at 3 months but not at 4, 5, and 12 months. Moreover, generally, the physical dimension of QOL but not the mental dimensions improved. Recommendations for future research to reduce the gap in knowledge about the effects of exercise-based CR for women are offered.

Frailty and heart failure: State-of-the-art review

At least half of all patients with heart failure (HF) are affected by frailty, a syndrome that limits an individual ability to recover from acute stressors. While frailty affects up to 90% of patients with HF with preserved ejection fraction, it is also seen in ~30-60% of patients with HF with reduced ejection fraction, with ~26% higher prevalence in women compared with men. The relationship between frailty and HF is bidirectional, with both conditions exacerbating the other. Frailty is further complicated by a higher prevalence of sarcopenia (by ~20%) in HF patients compared with patients without HF, which negatively affects outcomes. Several frailty assessment methods have been employed historically including the Fried frailty phenotype and Rockwood Clinical Frailty Scale to classify HF patients based on the severity of frailty; however, a validated HF-specific frailty assessment tool does not currently exist. Frailty in HF is associated with a poor prognosis with a 1.5-fold to 2-fold higher risk of all-cause death and hospitalizations compared to non-frail patients. Frailty is also highly prevalent in patients with worsening HF, affecting >50% of patients hospitalized for HF. Such patients with multiple readmissions for decompensated HF have markedly poor outcomes compared to younger, non-frail cohorts, and it is hypothesized that it may be due to major physical and functional limitations that limit recovery from an acute episode of worsening HF, a care aspect that has not been addressed in HF guidelines. Frail patients are thought to confer less benefit from therapeutic interventions due to an increased risk of perceived harm, resulting in lower adherence to HF interventions, which may worsen outcomes. Multiple studies report that <40% of frail patients are on guideline-directed medical therapy for HF, of which most are on suboptimal doses of these medications. There is a lack of evidence generated from randomized trials in this incredibly vulnerable population, and most current practice is governed by post hoc analyses of trials, observational registry-based data and providers' clinical judgement. The current body of evidence suggests that the treatment effect of most guideline-based interventions, including medications, cardiac rehabilitation and device therapy, is consistent across all age groups and frailty subgroups and, in some cases, may be amplified in the older, more frail population. In this review, we discuss the characteristics, assessment tools, impact on prognosis and impact on therapeutic interventions of frailty in patients with HF.

Patterns of Referral and Postdischarge Utilization of Cardiac Rehabilitation Among Patients Hospitalized With Heart Failure: An Analysis From the GWTG-HF Registry

BACKGROUND

Coverage for cardiac rehabilitation (CR) for patients with heart failure with reduced ejection fraction was expanded in 2014, but contemporary referral and participation rates remain unknown.

METHODS

Patients hospitalized for heart failure with reduced ejection fraction (≤35%) in the American Heart Association Get With The Guidelines-Heart Failure registry from 2010 to 2020 were included, and CR referral status was described as yes, no, or not captured. Temporal trends in CR referral were assessed in the overall cohort. Patient and hospital-level predictors of CR referral were assessed using multivariable-adjusted logistic regression models. Additionally, CR referral and proportional utilization of CR within 1-year of referral were evaluated among patients aged >65 years with available Medicare administrative claims data who were clinically stable for 6-weeks postdischarge. Finally, the association of CR referral with the risk of 1-year death and readmission was evaluated using multivariable-adjusted Cox models.

RESULTS

Of 69,441 patients with heart failure with reduced ejection fraction who were eligible for CR (median age 67 years; 33% women; 30% Black), 17,076 (24.6%) were referred to CR, and referral rates increased from 8.1% in 2010 to 24.1% in 2020 (Ptrend<0.001). Of 8310 patients with Medicare who remained clinically stable 6-weeks after discharge, the CR referral rate was 25.8%, and utilization of CR among referred patients was 4.1% (mean sessions attended: 6.7). Patients not referred were more likely to be older, of Black race, and with a higher burden of comorbidities. In adjusted analysis, eligible patients with heart failure with reduced ejection fraction who were referred to CR (versus not referred) had a lower risk of 1-year death (hazard ratio, 0.84 [95% CI, 0.70-1.00]; P=0.049) without significant differences in 1-year readmission.

CONCLUSIONS

CR referral rates have increased from 2010 to 2020. However, only 1 in 4 patients are referred to CR. Among eligible patients who received CR referral, participation was low, with <1 of 20 participating in CR.

Global trends and frontiers in research on exercise training for heart failure: a bibliometric analysis from 2002 to 2022

Background

Heart failure is a common cardiovascular disease that imposes a heavy clinical and economic burden worldwide. Previous research and guidelines have supported exercise training as a safe, effective, and cost-efficient treatment to intervene in heart failure. The aim of this study was to analyze the global published literature in the field of exercise training for heart failure from 2002 to 2022, and to identify hot spots and frontiers within this research field.

Methods

Bibliometric information on literature on the topic of exercise training for heart failure published between 2002 and 2022 was searched and collected in the Web of Science Core Collection. CiteSpace 6.1.R6 (Basic) and VOSviewer (1.6.18) were applied to perform bibliometric and knowledge mapping visualization analyses.

Results

A total of 2017 documents were retrieved, with an upward-stable trend in the field of exercise training for heart failure. The US authors were in the first place with 667 documents (33.07%), followed by Brazilian authors (248, 12.30%) and Italian authors (182, 9.02%). The Universidade de São Paulo in Brazil was the institution with the highest number of publications (130, 6.45%). The top 5 active authors were all from the USA, with Christopher Michael O'Connor and William Erle Kraus publishing the most documents (51, 2.53%). The International Journal of Cardiology (83, 4.12%) and the Journal of Applied Physiology (78, 3.87%) were the two most popular journals, while Cardiac Cardiovascular Systems (983, 48.74%) and Physiology (299, 14.82%) were the two most popular categories. Based on the results of keyword co-occurrence network and co-cited reference network, the hot spots and frontiers of research in the field of exercise training for heart failure were high-intensity interval training, behaviour therapy, heart failure with preserved ejection fraction, and systematic reviews.

Conclusion

The field of exercise training for heart failure has experienced two decades of steady and rapid development, and the findings of this bibliometric analysis provide ideas and references for relevant stakeholders such as subsequent researchers for further exploration.

Cardiac rehabilitation for heart failure: 'Cinderella' or evidence-based pillar of care?

Cardiac rehabilitation remains the 'Cinderella' of treatments for heart failure. This state-of-the-art review provides a contemporary update on the evidence base, clinical guidance, and status of cardiac rehabilitation delivery for patients with heart failure. Given that cardiac rehabilitation participation results in important improvements in patient outcomes, including health-related quality of life, this review argues that an exercise-based rehabilitation is a key pillar of heart failure management alongside drug and medical device provision. To drive future improvements in access and uptake, health services should offer heart failure patients a choice of evidence-based modes of rehabilitation delivery, including home, supported by digital technology, alongside traditional centre-based programmes (or combinations of modes, 'hybrid') and according to stage of disease and patient preference.

Primary care Adherence To Heart Failure guidelines IN Diagnosis, Evaluation and Routine management (PATHFINDER): a randomised controlled trial protocol

INTRODUCTION

General practitioners (GPs) routinely provide care for patients with heart failure (HF); however, adherence to management guidelines, including titrating medication to optimal dose, can be challenging in this setting. This study will evaluate the effectiveness of a multifaceted intervention to support adherence to HF management guidelines in primary care.

METHODS AND ANALYSIS

We will undertake a multicentre, parallel-group, randomised controlled trial of 200 participants with HF with reduced ejection fraction. Participants will be recruited during a hospital admission due to HF. Following hospital discharge, the intervention group will have follow-up with their GP scheduled at 1 week, 4 weeks and 3 months with the provision of a medication titration plan approved by a specialist HF cardiologist. The control group will receive usual care. The primary endpoint, assessed at 6 months, will be the difference between groups in the proportion of participants being prescribed five guideline-recommended treatments; (1) ACE inhibitor/angiotensin receptor blocker/angiotensin receptor neprilysin inhibitor at least 50% of target dose, (2) beta-blocker at least 50% of target dose, (3) mineralocorticoid receptor antagonist at any dose, (4) anticoagulation for patients diagnosed with atrial fibrillation, (5) referral to cardiac rehabilitation. Secondary outcomes will include functional capacity (6-minute walk test); quality of life (Kansas City Cardiomyopathy Questionnaire); depressive symptoms (Patient Health Questionnaire-2); self-care behaviour (Self-Care of Heart Failure Index). Resource utilisation will also be assessed.

ETHICS AND DISSEMINATION

Ethical approval was granted by the South Metropolitan Health Service Ethics Committee (RGS3531), with reciprocal approval at Curtin University (HRE2020-0322). Results will be disseminated via peer-reviewed publications and conferences.

TRIAL REGISTRATION NUMBER

ACTRN12620001069943.

The Role of Exercise-based Cardiac Rehabilitation in Heart Failure

Exercise-based cardiac rehabilitation (EBCR) is a treatment modality for patients with heart failure (HF) that has withstood the test of time. It has continued to show benefits even in the current era of pharmacotherapeutics for HF. Participation in a multidisciplinary comprehensive EBCR programme reduces mortality and morbidity, has a multitude of physiological benefits, and improves cardiovascular risk factor control and quality of life. Despite this, historical barriers to enrolment and uptake remain. Strategies to overcome these, as well as alternative delivery methods of EBCR in HF patients, are emerging and include telerehabilitation, focus on special groups and emphasis on behavioural change. This review provides oversight on the modalities of exercise training in HF as well as their benefits and gives an overview of barriers to the utilisation of EBCR along with future progress in the field.

Factors Associated With Participation Rate and Predictive of Improvement After Cardiac Rehabilitation in Patients With Heart Failure

PURPOSE

Patients with heart failure (HF) are often limited in their ability to perform exercise. Cardiac rehabilitation (CR) improves aerobic capacity and quality of life (QOL) and is recommended for patients with clinically stable HF; however, it is underutilized. The aim of this study was to investigate the factors associated with participation and completion rates and predictive of improvement after phase II CR in patients with HF.

METHODS

Participation and completion rates were calculated for all patients with HF enrolled in a multidisciplinary management program from October 2008 to December 2018. Functional capacity and QOL were estimated. In patients undergoing CR, changes in peak oxygen uptake (V˙ o2peak ) were measured.

RESULTS

Of 662 patients enrolled, 448 (68%) completed the cardiopulmonary exercise test (CPX). Phase II CR was recommended in 411 patients, of whom 291 (71%) participated in CR. Participation was significantly related to sex and the time interval in days between hospital discharge and the CPX. Overall, 171 patients completed 36 sessions of CR (with a completion rate of 59%). During CR, there were 18 (6%) adverse events. Cardiac rehabilitation was associated with improvement in V˙ o2peak from 1153 ± 393 to 1342 ± 470 mL/min (a 16% improvement; P < .001) and in QOL. The independent predictors of increase in V˙ o2peak included sex, age, diabetes mellitus, and entry V˙ o2peak .

CONCLUSIONS

In patients with HF, factors associated with CR participation rate included sex and days between hospital discharge and the CPX. Participation in CR improved V˙ o2peak and QOL. The improvement was related to male sex, younger age, no diabetes mellitus, and higher entry V˙ o2peak .

Trends and Factors Associated With Cardiac Rehabilitation Participation - Data From Japanese Nationwide Databases

BACKGROUND

Few studies have comprehensively evaluated the trends and factors associated with CR participation across major cardiovascular diseases in Japan.

METHODS AND RESULTS

This study performed a nationwide cross-sectional study using the National Database of Health Insurance Claims and Specific Health Checkups of Japan and the Japanese Registry of All Cardiac and Vascular Diseases and the Diagnosis Procedure Combination database. This study described the nationwide trends and evaluated patient- and hospital-level associated factors of CR participation for patients with acute heart failure (AHF), acute coronary syndrome (ACS), acute aortic dissection (AAD), peripheral artery disease (PAD), and after cardiovascular surgery using mixed-effect logistic regression analysis. Although the annual number of patients who underwent CR has increased during the study period, the total number of patients participating in outpatient CR was lower than that of inpatient CR. The outpatient CR participation rate was lower for patients with AHF (3.5%), AAD (3.2%), and PAD (1.7%), compared with ACS (7.9%) and after surgery (9.4%). Age, sex, body mass index, Barthel index, Charlson comorbidity index, and institutional capacity were identified as significant associated factors of CR participation in inpatient and outpatient settings.

CONCLUSIONS

Participation in outpatient CR was still low, and higher age, multi-comorbidity, and low institutional capacity contributed to the lower outpatient CR participation rate. Identification of the associated factors may help cardiologists to increase CR participation.

Cardiac rehabilitation for patients with heart failure: association with readmission and mortality risk

AIMS

To examine the temporal trends and factors associated with national cardiac rehabilitation (CR) referral and compare the risk of hospital readmission and mortality in those referred for CR versus no referral.

METHODS AND RESULTS

This cohort study includes all adult patients alive 120 days from incident heart failure (HF) identified by the Danish Heart Failure Registry (n = 33 257) between 2010 and 2018. Multivariable logistic regression models were used to assess the association between CR referral and patient factors and acute all-cause hospital readmission and mortality at 1 year following HF admission. Overall, 46.7% of HF patients were referred to CR, increasing from 31.7% in 2010 to 52.2% in 2018. Several factors were associated with lower odds of CR referral: male sex [odds ratio (OR): 0.85; 95% confidence interval: 0.80-0.89], older age, unemployment, retirement, living alone, non-Danish ethnic origin, low educational level, New York Heart Association (NYHA) class IV vs. I (OR: 0.75; 0.60-0.95), left ventricular ejection fraction >40%, and comorbidity (stroke, chronic kidney disease, atrial fibrillation/flutter, and diabetes). Myocardial infarction, arthritis, coronary artery bypass grafting, percutaneous coronary intervention, valvular surgery, NYHA class II, and use of angiotensin-converting enzyme inhibitors were associated with higher odds of CR referral. CR referral was associated with lower risk of acute all-cause readmission (OR: 0.92; 0.87-0.97) and all-cause mortality (OR: 0.65; 0.58-0.72).

CONCLUSION

Although increased over time, only one in two HF patients in Denmark were referred to CR in 2018. Strategies are needed to reduce referral disparities, focusing on subgroups of patients at highest risk of non-referral.

Physicians' Perceptions of and Barriers to Cardiopulmonary Rehabilitation for Heart Failure Patients in Saudi Arabia: A Cross-Sectional Study

BACKGROUND

Cardiopulmonary rehabilitation (CR) serves as a core component of the management strategy for patients with heart failure (HF). CR is administered by multidisciplinary healthcare providers, but their perceptions toward delivering CR to HF patients, and the factors and barriers that might influence referral, have not been studied. This study aims to assess physicians' perceptions toward delivering CR programs to HF patients and identify factors and barriers that might influence their referral decisions.

METHODS

Between 15 February and 5 June 2022, a cross-sectional online survey with ten multiple-choice items was distributed to all general and cardiac physicians in Saudi Arabia. The characteristics of the respondents were described using descriptive statistics. Percentages and frequencies were used to report categorical variables. The statistical significance of the difference between categorical variables was determined using the chi-square (2) test. Logistic regression was used to identify referral factors.

RESULTS

Overall, 513 physicians (general physicians (78%) and cardiac doctors (22%)) completed the online survey, of which 65.0% (n = 332) were male. Of the general physicians, 236 (59%) had referred patients with HF to CR. Sixty-six (58%) of the cardiac doctors had referred patients with HF to CR. A hospital-supervised program was the preferred mode of delivering CR programs among 315 (79%) general physicians, while 84 (74%) cardiac doctors preferred to deliver CR programs at home. Apart from the exercise component, information about HF disease was perceived by 321 (80%) general physicians as the essential component of a CR program, while symptom management was perceived by 108 (95%) cardiac doctors as the essential component of a CR program. The most common patient-related factor that strongly influenced referral decisions was "fatigue related to disease" (63.40%). The availability of CR centers (48%) was the most common barrier preventing the referral of patients to CR.

CONCLUSIONS

CR is an effective management strategy for HF patients, but the lack of CR centers is a major barrier to the referral of patients. A hospital-supervised program is the preferred method of delivering CR from the general physicians' perspective, while cardiac doctors prefer home-based CR programs. Apart from the exercise component, information about HF disease and symptom management is essential components of CR programs from general physicians' and cardiac doctors' perspectives, respectively.

Early Cardiac Rehabilitation to Reduce Heart Failure Readmissions

PURPOSE

This research was conducted to determine whether early participation in cardiac rehabilitation (CR) reduces readmissions following heart failure (HF) hospitalization.

METHODS

A retrospective quasiexperimental comparison group design was used. Electronic medical records were abstracted for HF patients discharged between March 2013 and December 2017. The treatment group was defined as patients with HF who attended ≥1 CR session within 6 wk following discharge. The comparison group was defined as patients with HF without additional HF hospitalizations during the previous year, discharged to home/self-care, and did not attend CR within 6 wk. Readmission rates at 30 d and 6 wk were compared between groups using χ 2 analysis and logistic regression.

RESULTS

Out of 8613 patients with HF, 205 (2.4%) attended ≥1 CR within 6 wk post-discharge. The treatment group had lower, but not statistically significant, readmission rates than the comparison group for 30-d readmissions for HF ( P = .13), and 6-wk readmission rates for HF ( P = .05). The treatment group had lower all-cause readmissions at 30 d (P < .01) and 6 wk ( P < .01) than the comparison group. Multivariable logistic regression revealed that early CR attendance was associated with reduced 30-d all-cause readmissions (adjusted OR = 0.4: 95% CI, 0.2-0.7) and 6-wk all-cause readmissions (adjusted OR = 0.5: 95% CI, 0.3-0.8).

CONCLUSIONS

This study contributes to the existing evidence for allowing early unrestricted CR participation with the aim of improving the health of patients with HF and reducing rehospitalization rates.

Barriers and facilitators to implementation of a home-based cardiac rehabilitation programme for patients with heart failure in the NHS: a mixed-methods study

OBJECTIVES

This study aimed to identify barriers to, and facilitators of, implementation of the Rehabilitation EnAblement in CHronic Heart Failure (REACH-HF) programme within existing cardiac rehabilitation services, and develop and refine the REACH-HF Service Delivery Guide (an implementation guide cocreated with healthcare professionals). REACH-HF is an effective and cost-effective 12-week home-based cardiac rehabilitation programme for patients with heart failure.

SETTING/PARTICIPANTS

In 2019, four early adopter 'Beacon Sites' were set up to deliver REACH-HF to 200 patients. In 2020, 5 online REACH-HF training events were attended by 85 healthcare professionals from 45 National Health Service (NHS) teams across the UK and Ireland.

DESIGN

Our mixed-methods study used in-depth semi-structured interviews and an online survey. Interviews were conducted with staff trained specifically for the Beacon Site project, identified by opportunity and snowball sampling. The online survey was later offered to subsequent NHS staff who took part in the online REACH-HF training. Normalisation Process Theory was used as a theoretical framework to guide data collection/analysis.

RESULTS

Seventeen healthcare professionals working at the Beacon Sites were interviewed and 17 survey responses were received (20% response rate). The identified barriers and enablers included, among many, a lack of resources/commissioning, having interest in heart failure and working closely with the clinical heart failure team. Different implementation contexts (urban/rural), timing (during the COVID-19 pandemic) and factors outside the healthcare team/system (quality of the REACH-HF training) were observed to negatively or positively impact the implementation process.

CONCLUSIONS

The findings are highly relevant to healthcare professionals involved in planning, delivering and commissioning of cardiac rehabilitation for patients with heart failure. The study's main output, a refined version of the REACH-HF Service Delivery Guide, can guide the implementation process (eg, designing new care pathways) and provide practical solutions to overcoming common implementation barriers (eg, through early identification of implementation champions).

Racial and Ethnic Differences in Cardiac Rehabilitation Participation: Effect Modification by Household Income

Background

Cardiac rehabilitation (CR) is associated with improved cardiovascular outcomes. Racial and ethnic differences in CR have been identified, but whether income may attenuate these disparities remains unknown. We evaluated (1) racial/ethnic differences in CR participation in a contemporary sample of insured US adults, and (2) assessed how household income modifies associations between race or ethnicity and CR participation.

Methods and Results

We identified 107 199 individuals with a CR‐qualifying diagnosis between January 1, 2016 and December 31, 2018 in Optum’s de‐identified Clinformatics database. We evaluated associations between race or ethnicity and participation in CR, and assessed interaction between race or ethnicity and annual household income. The mean±SD age of all participants was 70.4±11.6 years; 37.4% were female and 76.0% were White race. Overall, 28 443 (26.5%) attended ≥1 CR sessions. After adjustment, compared with White individuals, the probability of attending CR was 31% lower for Asian individuals (95% CI, 27%–36%), 19% lower for Black individuals (95% CI, 16%–22%), and 43% lower for Hispanic individuals (95% CI, 40%–45%), all P<0.0001. The time to CR attendance was also significantly longer for Asian, Black, and Hispanic individuals. Associations between race or ethnicity and attendance at CR differed significantly across household income categories (P interaction=0.0005); however, Asian, Black, and Hispanic individuals were less likely to attend CR at all incomes.

Conclusions

In a geographically and racially diverse cohort, participation in CR was low overall, and was lowest among Asian, Black, and Hispanic candidates. Household income may impact the link between race or ethnicity and attendance at CR, but substantial racial and ethnic disparities exist across incomes.

A pragmatic effectiveness-implementation study comparing trial evidence with routinely collected outcome data for patients receiving the REACH-HF home-based cardiac rehabilitation programme

BACKGROUND

Cardiac rehabilitation for heart failure continues to be greatly underused worldwide despite being a Class I recommendation in international clinical guidelines and uptake is low in women and patients with mental health comorbidities.

METHODS

Rehabilitation EnAblement in CHronic Heart Failure (REACH-HF) programme was implemented in four UK National Health Service early adopter sites ('Beacon Sites') between June 2019 and June 2020. Implementation and patient-reported outcome data were collected across sites as part of the National Audit of Cardiac Rehabilitation. The change in key outcomes before and after the supervised period of REACH-HF intervention across the Beacon Sites was assessed and compared to those of the intervention arm of the REACH-HF multicentre trial.

RESULTS

Compared to the REACH-HF multicentre trial, patients treated at the Beacon Site were more likely to be female (33.8% vs 22.9%), older (75.6 vs 70.1), had a more severe classification of heart failure (26.5% vs 17.7%), had poorer baseline health-related quality of life (MLHFQ score 36.1 vs 31.4), were more depressed (HADS score 6.4 vs 4.1) and anxious (HADS score 7.2 vs 4.7), and had lower exercise capacity (ISWT distance 190 m vs 274.7 m). There appeared to be a substantial heterogeneity in the implementation process across the four Beacon Sites as evidenced by the variation in levels of patient recruitment, operationalisation of the REACH-HF intervention and patient outcomes. Overall lower improvements in patient-reported outcomes at the Beacon Sites compared to the trial may reflect differences in the population studied (having higher morbidity at baseline) as well as the marked challenges in intervention delivery during the COVID-19 pandemic.

CONCLUSION

The results of this study illustrate the challenges in consistently implementing an intervention (shown to be clinically effective and cost-effective in a multicentre trial) into real-world practice, especially in the midst of a global pandemic. Further research is needed to establish the real-world effectiveness of the REACH-HF intervention in different populations.

Evolving therapeutic strategies for patients hospitalized with new or worsening heart failure across the spectrum of left ventricular ejection fraction

Heart failure (HF) is a chronic, progressive, and increasingly prevalent syndrome characterized by stepwise declines in health status and residual lifespan. Despite significant advancements in both pharmacologic and nonpharmacologic management approaches for chronic HF, the burden of HF hospitalization-whether attributable to new-onset (de novo) HF or worsening of established HF-remains high and contributes to excess HF-related morbidity, mortality, and healthcare expenditures. Owing to a paucity of evidence to guide tailored interventions in this heterogeneous group, management of acute HF events remains largely subject to clinician discretion, relying principally on alleviation of clinical congestion, as-needed correction of hemodynamic perturbations, and concomitant reversal of underlying trigger(s). Following acute stabilization, the subsequent phase of care primarily involves interventions known to improve long-term outcomes and rehospitalization risk, including initiation and optimization of disease-modifying pharmacotherapy, targeted use of adjunctive therapies, and attention to contributing comorbid conditions. However, even with current standards of care many patients experience recurrent HF hospitalization, or after admission incur worsening clinical trajectories. These patterns highlight a persistent unmet need for evidence-based approaches to inform in-hospital HF care and call for renewed focus on urgent implementation of interventions capable of ameliorating risk of worsening HF. In this review, we discuss key contemporary and emerging therapeutic strategies for patients hospitalized with de novo or worsening HF.

Predictors of Referral to Cardiac Rehabilitation in Patients following Hospitalisation with Heart Failure: A Multivariate Regression Analysis

Background: This exploratory observational case−control study investigated the rate of referral to cardiac rehabilitation (CR) among patients hospitalised with heart failure (HF) and identified factors associated with referral. Methods: Patients hospitalised with HF as identified by the Victorian Cardiac Outcomes Registry HF study were included. Factors found to be univariately associated with referral were selected for multivariate logistic regression. Results: Among 1281 patients (mean age: 76.9 years; 32.8% HFrEF and 33.9% HfpEF), 125 (9.8%) were referred to CR. Patients referred were younger (73.6 (2.7, 81.5) vs. 80.2 (71.1, 86.5) p < 0.001) and were more likely to be men (72%, p < 0.001). Factors associated with referral included inpatient percutaneous coronary intervention (OR, 3.31; 95% CI, 1.04−10.48; p = 0.04), an aetiology of ischaemic or rhythm-related cardiomyopathy, and anticoagulants prescribed on discharge. Factors that lowered the likelihood of referral included older age, female, receiving inpatient oxygen therapy, and the presence of chronic obstructive pulmonary disease (COPD) or anaemia. Conclusions: The rate of referral to CR following hospitalisation with HF is low. Shortfalls are particularly evident among females, older patients, and in those with COPD or anaemia. Future studies should focus on improving referral processes and translating proven strategies that increase referrals to CR into practice.

Heart Disease and Stroke Statistics-2022 Update: A Report From the American Heart Association

BACKGROUND

The American Heart Association, in conjunction with the National Institutes of Health, annually reports the most up-to-date statistics related to heart disease, stroke, and cardiovascular risk factors, including core health behaviors (smoking, physical activity, diet, and weight) and health factors (cholesterol, blood pressure, and glucose control) that contribute to cardiovascular health. The Statistical Update presents the latest data on a range of major clinical heart and circulatory disease conditions (including stroke, congenital heart disease, rhythm disorders, subclinical atherosclerosis, coronary heart disease, heart failure, valvular disease, venous disease, and peripheral artery disease) and the associated outcomes (including quality of care, procedures, and economic costs).

METHODS

The American Heart Association, through its Statistics Committee, continuously monitors and evaluates sources of data on heart disease and stroke in the United States to provide the most current information available in the annual Statistical Update. The 2022 Statistical Update is the product of a full year's worth of effort by dedicated volunteer clinicians and scientists, committed government professionals, and American Heart Association staff members. This year's edition includes data on the monitoring and benefits of cardiovascular health in the population and an enhanced focus on social determinants of health, adverse pregnancy outcomes, vascular contributions to brain health, and the global burden of cardiovascular disease and healthy life expectancy.

RESULTS

Each of the chapters in the Statistical Update focuses on a different topic related to heart disease and stroke statistics.

CONCLUSIONS

The Statistical Update represents a critical resource for the lay public, policymakers, media professionals, clinicians, health care administrators, researchers, health advocates, and others seeking the best available data on these factors and conditions.

Physical Inactivity Is Associated With Post-discharge Mortality and Re-hospitalization Risk Among Swedish Heart Failure Patients—The HARVEST-Malmö Study

Background

Several studies have examined the role of physical activity as a predictor of heart failure (HF) mortality and morbidity. Here, we aimed to evaluate the role of self-reported physical activity as an independent risk factor of post-discharge mortality and re-hospitalization in patients hospitalized for HF, as well as study the association between physical activity and 92 plasma proteins associated with cardiovascular disease (CVD).

Methods

Four-hundred-and-thirty-four patients hospitalized for HF (mean age 75 years; 32% women) were screened for physical activity derived from questionnaires in the Swedish national public health survey. The median follow-up time to death and re-hospitalization was 835 (interquartile range, 390–1,432) and 157 (43–583) days, respectively. Associations between baseline reported physical activity, mortality and re-hospitalization risk were analyzed using multivariable Cox regression analysis. Plasma samples from 295 study participants were analyzed with a proximity extension assay consisting of 92 proteins. Associations between proteins and physical activity were explored using a false discovery rate of <5%, and significant associations were taken forward to multivariate analyses.

Results

In the multivariate Cox regression model, physical inactivity, defined as physical activity time <1 h throughout the week was associated with increased risk of all-cause mortality (HR 1.71; CI95% 1.26–2.31; p = 5.9 × 10⁻⁴) as well as all-cause re-hospitalization (HR 1.27; CI95% 1.01–1.60; p = 0.038). Further, physical inactivity was associated with elevated plasma levels of Metalloproteinase inhibitor 4, Soluble interleukin 1 receptor-like 1, Elafin and Transferrin receptor protein 1, which are implicated in myocardial fibrosis, migration and apoptosis.

Conclusions

Self-reported low weekly physical activity is associated with increased risk of mortality and re-hospitalization in patients hospitalized for HF independent of traditional risk factors. Furthermore, physical inactivity was associated with elevated levels of 4 proteins linked to cardiovascular disease.

Association of adherence to a 3 month cardiac rehabilitation with long-term clinical outcomes in heart failure patients

Aims

Although comprehensive cardiac rehabilitation (CCR) is recommended for patients with heart failure (HF), participants often show low adherence. The aim of this study was to evaluate the association of CCR completion and response with long‐term clinical outcomes.

Methods and results

We screened 824 HF patients who participated in a 3 month CCR programme and underwent baseline assessment, including cardiopulmonary exercise testing (CPX). After excluding 52 participants who experienced all‐cause death or HF hospitalization within 180 days, long‐term outcomes were compared between those who attended 3 month follow‐up assessment including CPX (completers) and those who did not (non‐completers). We also compared the prognostic value of the changes in peak oxygen uptake (VO₂) vs. quadriceps muscle strength (QMS) during the 3 month CCR programme. Among the 772 study patients, there were no significant differences in baseline characteristics, including left ventricular ejection fraction, B‐type natriuretic peptide levels, and peak VO₂, between the completers (n = 561) and non‐completers (n = 211), except for a higher age (63.2 ± 14.2 vs. 59.4 ± 16.2 years; P = 0.0015) and proportion of females (27% vs. 17%; P = 0.0030) among the completers. During a median follow‐up of 55.4 months, the completers had lower rates of the composite of all‐cause death or HF hospitalization (34.4% vs. 44.6%; P = 0.0015) and all‐cause death (16.9% vs. 24.6%; P = 0.0037) than the non‐completers. After adjustment for prognostic baseline characteristics, including age and sex, CCR completion was associated with 34% and 44% reductions in the composite outcome and all‐cause death, respectively. Among the completers, peak VO₂ and QMS increased significantly (8.9 ± 15.8% and 10.5 ± 17.9%, respectively) over 3 months. Patients who had an increase in peak VO₂ ≥ 6.3% (median value) during the CCR programme had significantly lower rates of the composite outcome (27.0% vs. 33.8%; P = 0.048) and all‐cause mortality (10.0% vs. 17.4%; P = 0.0069) than those who did not. No statistically significant difference was observed in the composite outcome (30.5% vs. 30.4%; P = 0.76) or all‐cause mortality (13.0% vs. 14.4%; P = 0.39) between those with and without an increase in QMS ≥8.3% (median value).

Conclusions

In HF patients who participated in a 3 month CCR programme, its completion was associated with lower risks of subsequent HF hospitalization and death. Within the group of patients who completed the programme, the improvement in exercise capacity, but not in skeletal muscle strength, over the 3‐month period was associated with better outcomes. These findings highlight the importance of the post‐CCR follow‐up assessment, including CPX, to identify a patient's adherence and response to the CCR programme.

Relationship between physical capacity and depression in heart failure patients undergoing hybrid comprehensive telerehabilitation vs. usual care: subanalysis from the TELEREH-HF Randomized Clinical Trial

AIMS

The hybrid comprehensive telerehabilitation (HCTR) consisting of telecare (with psychological telesupport), telerehabilitation, and remote monitoring of cardiovascular implantable electronic devices might be an option to improve both physical capacity and depressive symptoms. The aim of the study was to investigate the influence of HCTR on depressive symptoms and physical capacity in heart failure (HF) patients in comparison with usual care (UC).

METHODS AND RESULTS

The present analysis formed part of a multicentre, randomized trial that enrolled 850 HF patients (New York Heart Association I-III, left ventricular ejection fraction ≤ 40%). Patients were randomized 1:1 to HCTR or UC. Patients underwent an HCTR programme (1 week in hospital and 8 weeks at home; exercise training 5 times weekly) or UC with observation. The Beck Depression Inventory II (BDI-II) score (cut point for depression ≥ 14) was used to assess depression and the physical capacity was measured by peak oxygen consumption (peak VO2; mL/kg/min). Measurements were made before and after 9-week intervention/observation (HCTR/UC group). Both groups were comparable in terms of demographic and clinical characteristics. In HCTR group, at entry, 23% of the sample obtained BDI-II scores ≥14 vs. 27.5% in UC group. There were no significant differences between groups regarding ΔBDI-II score (P = 0.992) after 9-week HCTR/UC. There was a significant improvement in physical capacity only in the HCTR group in both patients with (P = 0.033) and without (P < 0.001) depression.

CONCLUSIONS

In HF patients, HCTR provided similar reduction of depressive symptoms as UC. HCTR resulted in a significant improvement in physical capacity in patients with and without depression.

Effects of home-based Baduanjin combined with elastic band exercise in patients with chronic heart failure

AIMS 

Many studies show that aerobic exercise combined with resistance training is beneficial for patients with chronic heart failure (CHF). The benefits of traditional Chinese exercise Baduanjin combined with an elastic band in this population are not known. To evaluate the effects of Baduanjin in conjunction with an elastic band on exercise capacity, physical function, muscle strength of the upper and lower extremities, quality of life (QoL), and exercise self-efficacy among CHF patients in a home-based setting.

METHODS AND RESULTS 

A prospective randomized controlled trial was conducted in this study. A total of 136 CHF patients were randomly assigned to the exercise or the control group. Chronic heart failure patients in the exercise group received Baduanjin combined with elastic band and CHF community care, while those in the control group accepted CHF community care. The duration of the interventions was 24 weeks. The measured outcomes included exercise capacity, physical function, muscle strength of the upper and lower extremities, QoL, and exercise self-efficacy. A generalized estimating equation model was employed to examine the effects of Baduanjin combined with the elastic band on the outcome variables. Chronic heart failure patients showed significant improvements in physical performance testing (PPT) (P = 0.023), 30-s arm curl test (30ACT) (P = 0.035), 10 sit-stand-to-sit tests (STS10) (P = 0.017), 6-min walk test (6MWT) (P < 0.001), QoL (P < 0.001), and exercise self-efficacy (P = 0.009) in the exercise group, while these variables did not differ in the control group. There were also significant differences in these variables between the two groups at Weeks 12 and 24 (P < 0.05). There were significant group-by-time interactions in the exercise group, with enhancements in PPT (F = 5.40, P = 0.032), 6MWT (F = 9.04, P < 0.001), muscle strength in the 30ACT and STS10 (F = 5.32, P = 0.037; F = 6.69, P = 0.005), QoL (F = 6.69, P < 0.001), and self-efficacy (F = 4.60, P = 0.038) revealed in CHF patients in this group from baseline to Week 24.

CONCLUSION

Baduanjin combined with elastic band exercise may improve exercise capacity, physical function, muscle strength, QoL, and exercise self-efficacy for CHF patients in a home-based setting, which may be a complementary exercise model for home-based CHF patients who are clinically stable and cannot participate in centre-based exercise-based cardiac rehabilitation programmes.

Does tai chi improve psychological well-being and quality of life in patients with cardiovascular disease and/or cardiovascular risk factors? A systematic review

BACKGROUND

Psychological risk factors have been recognised as potential, modifiable risk factors in the development and progression of cardiovascular disease (CVD). Tai Chi, a mind-body exercise, has the potential to improve psychological well-being and quality of life. We aim to assess the effects and safety of Tai Chi on psychological well-being and quality of life in people with CVD and/or cardiovascular risk factors.

METHODS

We searched for randomised controlled trials evaluating Tai Chi for psychological well-being and quality of life in people with CVD and cardiovascular risk factors, from major English and Chinese databases until 30 July 2021. Two authors independently conducted study selection and data extraction. Methodological quality was evaluated using the Cochrane Risk of Bias tool. Review Manager software was used for meta-analysis.

RESULTS

We included 37 studies (38 reports) involving 3525 participants in this review. The methodological quality of the included studies was generally poor. Positive effects of Tai Chi on stress, self-efficacy, and mood were found in several individual studies. Meta-analyses demonstrated favourable effects of Tai Chi plus usual care in reducing anxiety (SMD - 2.13, 95% confidence interval (CI): - 2.55, - 1.70, 3 studies, I2 = 60%) and depression (SMD -0.86, 95% CI: - 1.35, - 0.37, 6 studies, I2 = 88%), and improving mental health (MD 7.86, 95% CI: 5.20, 10.52, 11 studies, I2 = 71%) and bodily pain (MD 6.76, 95% CI: 4.13, 9.39, 11 studies, I2 = 75%) domains of the 36-Item Short Form Survey (scale from 0 to 100), compared with usual care alone. Tai Chi did not increase adverse events (RR 0.50, 95% CI: 0.21, 1.20, 5 RCTs, I2 = 0%), compared with control group. However, less than 30% of included studies reported safety information.

CONCLUSIONS

Tai Chi seems to be beneficial in the management of anxiety, depression, and quality of life, and safe to practice in people with CVD and/or cardiovascular risk factors. Monitoring and reporting of safety information are highly recommended for future research. More well-designed studies are warranted to determine the effects and safety of Tai Chi on psychological well-being and quality of life in this population.

SYSTEMATIC REVIEW REGISTRATION

International Prospective Register for Systematic Reviews (PROSPERO), CRD42016042905. Registered on 26 August 2016.

Cardiac rehabilitation for older adults: current evidence and future potential

INTRODUCTION

Growth of the older adult demographic has resulted in an increased number of older patients with cardiovascular disease (CVD) in combination with comorbid diseases and geriatric syndromes. Cardiac rehabilitation (CR) is utilized to promote recovery and improve outcomes, but remains underutilized, particularly by older adults. CR provides an opportunity to address the distinctive needs of older adults, with focus on CVD as well as geriatric domains that often dominate management and outcomes.

AREAS COVERED

Utility of CR for CVD in older adults as well as pertinent geriatric syndromes (e.g. multimorbidity, frailty, polypharmacy, cognitive decline, psychosocial stress, and diminished function) that affect CVD management.

EXPERT OPINION

Mounting data substantiate the importance of CR as part of recovery for older adults with CVD. The application of CR as a standard therapy is especially important as the combination of CVD and geriatric syndromes catalyzes functional decline and can trigger progressive clinical deterioration and dependency. While benefits of CR for older adults with CVD are already evident, further reengineering of CR is necessary to better address the needs of older candidates who may be frail, especially as remote and hybrid formats of CR are becoming more widespread.

Hybrid cardiac rehabilitation - The state of the science and the way forward

Cardiac rehabilitation (CR) improves exercise capacity and health-related quality of life (HRQoL) in a broad range of patients, including those with coronary artery disease, heart failure (HF), after heart valve surgery, and after heart transplantation. Unfortunately, in traditional center-based CR programs participation and adherence are low. A hybrid model of CR, combining center-based and home-based CR services, has been proposed and is currently being studied as a potential way to help bridge the participation gap, while maintaining the beneficial patient outcomes from CR. However, the ideal composition of a hybrid CR program has not been universally agreed upon. In the present review, we define hybrid CR as any combination of supervised center-based and monitored home-based exercise, where at least two of the core components of CR are addressed. Using this definition, we searched for studies comparing hybrid CR with: (1) traditional center-based CR among CAD patients, (2) usual care among CAD patients, and (3) usual care among HF patients. We found nine studies which fit both our definition and comparison groups. The structure of the hybrid CR programs differed for each study, but typically began with a center-based component lasting 2-11 weeks and transitioned to a home-based component lasting 10-22 weeks, with 3-5 exercise sessions per week composed of either walking (usually with a treadmill) or cycling for 25-35 min at 60-75% maximal heart rate. Patients recorded data from home exercise sessions, via either a digital heart rate monitor or accelerometer, into logbooks which were reviewed by a therapist at specified intervals (often via telephone). Counseling on risk factor management was predominantly provided during the center-based component. In these studies, hybrid CR led to similar short-term outcomes compared to traditional CR in patients with coronary artery disease (CAD), as well as increased adherence and reduced delivery costs. Compared with usual care, in patients with CAD, hybrid CR reduced cardiovascular events, and improved lipid profiles, exercise capacity, and HRQoL. In patients with HF, compared with usual care, hybrid CR improved physical function, exercise capacity, and HRQoL. Ongoing studies may clarify the combination of center-based and home-based CR which produces superior outcomes, and may also better define the role that technology should play in CR interventions.

Relationship between high-sensitivity cardiac troponin T, B-type natriuretic peptide, and physical function in patients with heart failure

AIMS

High-sensitivity cardiac troponin T (hs-cTnT) and B-type natriuretic peptide (BNP) are associated with prognosis and severity in patients with heart failure (HF); however, their association with physical function is unclear. This study aimed to investigate whether hs-cTnT and BNP levels are associated with physical function in patients with HF.

METHODS AND RESULTS

Hs-cTnT, BNP, and physical function (maximal quadriceps isometric strength [QIS], usual gait speed, and 6-min walk distance [6MWD]) were evaluated in 363 consecutive patients with HF (median age, 70 [60-78] years). Patients were divided into four groups according to their median hs-cTnT and BNP levels. After adjusting for demographic characteristics, laboratory levels, and HF severity, higher hs-cTnT and BNP levels were significantly associated with lower physical function (log hs-cTnT, β = -0.162, P = 0.001, for maximal QIS; β = -0.175, P = 0.002, for usual gait speed, and β = -0.129, P = 0.004, for 6MWD; log BNP, β = -0.090, P = 0.092, for maximal QIS, β = 0.038, P = 0.516, for usual gait speed, and β = -0.108, P = 0.023, for 6MWD). In addition, the high hs-cTnT and high BNP group had significantly lower physical function (all P < 0.05) than the low hs-cTnT and low BNP group.

CONCLUSIONS

Higher hs-cTnT and BNP levels are both associated with lower physical function in patients with HF, but hs-cTnT levels showed a more consistent association. The combination of hs-cTnT and BNP may be effective for the stratification of physical function in patients with HF.

A systematic review of provider-and system-level factors influencing the delivery of cardiac rehabilitation for heart failure

BACKGROUND

There is a longstanding research-to-practice gap in the delivery of cardiac rehabilitation for patients with heart failure. Despite adequate evidence confirming that comprehensive cardiac rehabilitation can improve quality of life and decrease morbidity and mortality in heart failure patients, only a fraction of eligible patients receives it. Many studies and reviews have identified patient-level barriers that might contribute to this disparity, yet little is known about provider- and system-level influences.

METHODS

A systematic review using narrative synthesis. The aims of the systematic review were to a) determine provider- and system-level barriers and enablers that affect the delivery of cardiac rehabilitation for heart failure and b) juxtapose identified barriers with possible solutions reported in the literature. A comprehensive search strategy was applied to the MEDLINE, Embase, PsycINFO, CINAHL Plus, EThoS and ProQuest databases. Articles were included if they were empirical, peer-reviewed, conducted in any setting, using any study design and describing factors influencing the delivery of cardiac rehabilitation for heart failure patients. Data were synthesised using inductive thematic analysis and a triangulation protocol to identify convergence/contradiction between different data sources.

RESULTS

Seven eligible studies were identified. Thematic analysis identified nine overarching categories of barriers and enablers which were classified into 24 and 26 themes respectively. The most prevalent categories were 'the organisation of healthcare system', 'the organisation of cardiac rehabilitation programmes', 'healthcare professional' factors and 'guidelines'. The most frequent themes included 'lack of resources: time, staff, facilities and equipment' and 'professional's knowledge, awareness and attitude'.

CONCLUSIONS

Our systematic review identified a wide range of provider- and system-level barriers impacting the delivery of cardiac rehabilitation for heart failure, along with a range of potential solutions. This information may be useful for healthcare professionals to deliver, plan or commission cardiac rehabilitation services, as well as future research.

Differential Effects of Cardiac Rehabilitation in Obese and Non-Obese Population

Background Cardiac rehabilitation (CR) improves outcomes in patients with heart disease. We investigated the differences in outcomes of comprehensive phase II CR in obese and non-obese patients. Methods We performed a retrospective analysis of functional outcomes including metabolic equivalents (METS), heart rate (chronotropic competence - CC), and blood pressure response (BPR) in 178 patients undergoing CR based on underlying body mass index (BMI). Demographic and clinical variables were assessed for age, gender, race, smoking, hypertension, hyperlipidemia, diabetes mellitus, coronary artery disease, stroke, heart failure, medication use, and several sessions attended. Results Initial CC and METS were impaired in majority of patients attending CR, whereas BPR to exercise was mostly preserved. Significant improvement occurred in CC (non-obese: 0.71 ± 0.11 vs 0.76 ± 0.11, p < 0.001; obese: 0.72 ± 0.10 vs 0.75 ± 0.12, p = 0.0010) and METS (non-obese: 4.96 ± 1.98 vs 7.33 ± 2.94, p < 0.001; obese: 4.39 ± 1.81 vs 6.79 ± 3.34, p < 0.001). Post-CR obese patients were able to reach similar level of physical activity as non-obese patients (6.79 ± 3.34 vs 7.33 ± 2.94; p = 0.2). Improvement in BPR was only seen in non-obese patients (24.02 ± 20.07 vs 30.18 ± 21.93; p = 0.019). Improvement in functional variables occurred despite increase in BMI in non-obese (25.91 ± 2.85 vs 26.21 ± 2.96; p = 0.031), and there was no significant change in BMI in obese (35.30 ± 5.60 vs 34.93 ± 5.42; p > 0.05). Conclusion CR concurrently improves functional outcomes in both obese and non-obese patients despite no associated weight loss. The difference in BPR, however, is seen in only non-obese individuals. Future studies are needed to validate the role of weight-optimized CR protocols as a potential target for improving cardiac outcomes.

Referral and access to heart function clinics: A realist review

RATIONALE, AIM, AND OBJECTIVES

Heart failure (HF) clinics are highly effective, yet not optimally utilized. A realist review was performed to identify contexts (eg, health system characteristics, clinic capacity, and siting) and underlying mechanisms (eg, referring provider knowledge of clinics and referral criteria, barriers in disadvantaged patients) that influence utilization (provider referral [ie, of all appropriate and no inappropriate patients] and access [ie, patient attends ≥1 visit]) of HF clinics.

METHODS

Following an initial scoping search and field observation in a HF clinic, we developed an initial program theory in conjunction with our expert panel, which included patient partners. Then, a literature search of seven databases was searched from inception to December 2019, including Medline; Grey literature was also searched. Studies of any design or editorials were included; studies regarding access to cardiac rehabilitation, or a single specialist for example, were excluded. Two independent reviewers screened the abstracts, and then full-texts. Relevant data from included articles were used to refine the program theory.

RESULTS

A total of 29 papers from five countries (three regions) were included. There was limited information to support or refute many elements of our initial program theory (eg, referring provider knowledge/beliefs, clinic inclusion/exclusion criteria), but refinements were made (eg, specialized care provided in each clinic, lack of patient encouragement). Lack of capacity, geography, and funding arrangements were identified as contextual factors, explaining a range of mechanistic processes, including patient clinical characteristics and social determinants of health as well as clinic characteristics that help to explain inappropriate and low use of HF clinics (outcome).

CONCLUSION

Given the burden of HF and benefit of HF clinics, more research is needed to understand, and hence overcome sub-optimal use of HF clinics. In particular, an understanding from the perspective of referring providers is needed.

Acute heart failure in elderly patients: a review of invasive and non-invasive management

Acute heart failure (AHF) is a major cause of unplanned hospitalisations in the elderly and is associated with high mortality. Its prevalence has grown in the last years due to population aging and longer life expectancy of chronic heart failure patients. Although international societies have provided guidelines for the management of AHF in the general population, scientific evidence for geriatric patients is often lacking, as these are underrepresented in clinical trials. Elderly have a different risk profile with more comorbidities, disability, and frailty, leading to increased morbidity, longer recovery time, higher readmission rates, and higher mortality. Furthermore, therapeutic options are often limited, due to unfeasibility of invasive strategies, mechanical circulatory support and cardiac transplantation. Thus, the in-hospital management of AHF should be tailored to each patient's clinical situation, cardiopulmonary condition and geriatric assessment. Palliative care should be considered in some cases, in order to avoid unnecessary diagnostics and/or treatments. After discharge, a strict follow-up through outpatient clinic or telemedicine is can improve quality of life and reduce rehospitalisation rates. The aim of this review is to offer an insight on current literature and provide a clinically oriented, patient-tailored approach regarding assessment, treatment and follow-up of elderly patients admitted for AHF.

Current concept in the diagnosis, treatment and rehabilitation of patients with congestive heart failure

Heart failure (HF) is a major public health problem with a prevalence of 1%-2% in developed countries. The underlying pathophysiology of HF is complex and as a clinical syndrome is characterized by various symptoms and signs. HF is classified according to left ventricular ejection fraction (LVEF) and falls into three groups: LVEF ≥ 50% - HF with preserved ejection fraction (HFpEF), LVEF < 40% - HF with reduced ejection fraction (HFrEF), LVEF 40%-49% - HF with mid-range ejection fraction. Diagnosing HF is primarily a clinical approach and it is based on anamnesis, physical examination, echocardiogram, radiological findings of the heart and lungs and laboratory tests, including a specific markers of HF - brain natriuretic peptide or N-terminal pro-B-type natriuretic peptide as well as other diagnostic tests in order to elucidate possible etiologies. Updated diagnostic algorithms for HFpEF have been recommended (H2FPEF, HFA-PEFF). New therapeutic options improve clinical outcomes as well as functional status in patients with HFrEF (e.g., sodium-glucose cotransporter-2 - SGLT2 inhibitors) and such progress in treatment of HFrEF patients resulted in new working definition of the term “HF with recovered left ventricular ejection fraction”. In line with rapid development of HF treatment, cardiac rehabilitation becomes an increasingly important part of overall approach to patients with chronic HF for it has been proven that exercise training can relieve symptoms, improve exercise capacity and quality of life as well as reduce disability and hospitalization rates. We gave an overview of latest insights in HF diagnosis and treatment with special emphasize on the important role of cardiac rehabilitation in such patients.

Temporal Trends and Factors Associated With Cardiac Rehabilitation Participation Among Medicare Beneficiaries With Heart Failure

OBJECTIVES

The purpose of this study was to assess temporal trends and factors associated with cardiac rehabilitation (CR) enrollment and participation among Medicare beneficiaries after the 2014 Medicare coverage expansion.

BACKGROUND

CR improves exercise capacity, quality of life, and clinical outcomes in heart failure (HF) with reduced ejection fraction (HFrEF). In 2014, Medicare coverage for CR was expanded to include chronic HFrEF.

METHODS

Among Medicare beneficiaries from quarter (Q) 1 2014 to Q2 2016, 11,696 patients from 14,258 hospitalizations with primary discharge diagnosis of HF were identified. Patients with HF with preserved ejection fraction were excluded. Quarterly CR participation rates among hospitalized HF patients within 6 months of discharge were identified through outpatient administrative claims. The predictors of CR participation were assessed with the use of a multivariable logistic regression model that included patient- and hospital-level characteristics. A secondary analysis to assess participation rates of CR after outpatient encounters for HF was performed.

RESULTS

Overall, only 611 (4.3%) and 349 (2.2%) eligible patients participated CR after primary hospitalization or outpatient visit for HF, respectively. There was a modest, statistically significant increase in CR participation after HF admissions (2.8% in Q1 2014; 5.0% in Q2 2016; p < 0.001) without significant increase after outpatient visits for HF (2.6% to 3.8%; p = 0.21). Younger age, male sex, nonblack race, previous cardiovascular procedures, and hospitalization at hospitals with available CR facilities were all independently associated with CR participation.

CONCLUSIONS

CR participation among eligible Medicare beneficiaries with HFrEF was low with minimal increase since 2014 Medicare coverage decision. Sex, race, and institution-dependent variables were independent predictors of CR participation.

The use of clinical decision support in reducing readmissions for patients with heart failure: a quasi-experimental study

BACKGROUND

Heart failure is a chronic, progressive condition which affects over six million Americans and 26 million people worldwide. Evidence-based guidelines, protocols, and decision-support tools are available to enhance the quality of care delivery but are not implemented consistently.

AIMS

To examine the effect of clinical decision-making support during patient discharge on 30-day hospital readmission among patients admitted with heart failure and evaluate provider utilization and satisfaction of clinical decision support tool.

DESIGN

A quasi-experimental study.

METHODS

An intervention group of hospitalized patients (N = 55) with heart failure were provided the intervention over a 3-month period and compared to the pre-intervention comparison group (N = 109) of patients who did not receive the intervention. An evidence-based discharge checklist and a pocket guide was implemented by an advanced practice nurse to assist health providers with clinical decision making. Descriptive statistics among samples, 30-day readmission rates, and provider utilization and satisfaction were examined.

RESULTS

Readmission rates slightly decreased (N = 109, 9.2% vs. N = 55, 9.1%) in the post-intervention period, but no significant difference. Heterogeneity between the two groups were minimal related to use of specific medications, age, length-of-stay and comorbidities. Descriptively, there was a significant difference the use of diuretics among each group (p = .002).The discharge checklist was used regularly by 67% of (N = 15) providers, and 93% expressed satisfaction with use.

CONCLUSION

There was no significant reduction in 30-day readmission rates between both groups. However, a slight reduction was noted which indicates the need for further examination into how the use of checklists for clinical decision support can reduce readmissions. A well-designed evidence-based discharge plan remains a critical component of the patient discharge process. Advance practice nurses are uniquely qualified to implement evidence-based interventions that promote practice change among health care providers and improve health outcomes.

Development of a Novel Intervention (Mindful Steps) to Promote Long-Term Walking Behavior in Chronic Cardiopulmonary Disease: Protocol for a Randomized Controlled Trial

BACKGROUND

Despite current rehabilitation programs, long-term engagement in physical activity remains a significant challenge for patients with chronic obstructive pulmonary disease (COPD) and heart failure (HF). Novel strategies to promote physical activity in these populations are greatly needed. Emerging literature on the benefits of both mind-body interventions and web-based interventions provide the rationale for the development of the Mindful Steps intervention for increasing walking behavior.

OBJECTIVE

This study aims to develop a novel multimodal mind-body exercise intervention through adaptation of an existing web-based physical activity intervention and incorporation of mind-body exercise, and to pilot test the delivery of the new intervention, Mindful Steps, in a randomized controlled feasibility trial in older adults with COPD and/or HF.

METHODS

In phase 1, guided by a theoretical conceptual model and review of the literature on facilitators and barriers of physical activity in COPD and HF, we convened an expert panel of researchers, mind-body practitioners, and clinicians to inform development of the novel, multimodal intervention. In phase 2, we are conducting a pilot randomized controlled feasibility trial of the Mindful Steps intervention that includes in-person mind-body exercise classes, an educational website, online mind-body videos, and a pedometer with step-count feedback and goals to increase walking behavior in patients with COPD and/or HF. Outcomes include feasibility measures as well as patient-centered measures.

RESULTS

The study is currently ongoing. Phase 1 intervention development was completed in March 2019, and phase 2 data collection began in April 2019.

CONCLUSIONS

Through the integration of components from a web-based physical activity intervention and mind-body exercise, we created a novel, multimodal program to impact long-term physical activity engagement for individuals with COPD and HF. This developmental work and pilot study will provide valuable information needed to design a future clinical trial assessing efficacy of this multimodal approach.

TRIAL REGISTRATION

ClinicalTrials.gov NCT03003780; https://clinicaltrials.gov/ct2/show/NCT03003780.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

DERR1-10.2196/27826.

Racial/Ethnic and Gender Disparities in Heart Failure with Reduced Ejection Fraction

PURPOSE OF REVIEW

This review highlights variability in prescribing of nonpharmacologic heart failure with reduced ejection fraction (HFrEF) therapies by race, ethnicity, and gender. The review also explores the evidence underlying these inequalities as well as potential mitigation strategies.

RECENT FINDINGS

There have been major advances in HF therapies that have led to improved overall survival of HF patients. However, racial and ethnic groups of color and women have not received equitable access to these therapies. Patients of color and women are less likely to receive nonpharmacologic therapies for HFrEF than White patients and men. Therapies including exercise rehabilitation, percutaneous transcatheter mitral valve repair, cardiac resynchronization therapy, heart transplant, and ventricular assist devices all have proven efficacy in patients of color and women but remain underprescribed. Outcomes with most nonpharmacologic therapy are similar or better among patients of color and women than White patients and men. System-level changes are urgently needed to achieve equity in access to nonpharmacologic HFrEF therapies by race, ethnicity, and gender.

Heart Disease and Stroke Statistics-2021 Update: A Report From the American Heart Association

BACKGROUND

The American Heart Association, in conjunction with the National Institutes of Health, annually reports the most up-to-date statistics related to heart disease, stroke, and cardiovascular risk factors, including core health behaviors (smoking, physical activity, diet, and weight) and health factors (cholesterol, blood pressure, and glucose control) that contribute to cardiovascular health. The Statistical Update presents the latest data on a range of major clinical heart and circulatory disease conditions (including stroke, congenital heart disease, rhythm disorders, subclinical atherosclerosis, coronary heart disease, heart failure, valvular disease, venous disease, and peripheral artery disease) and the associated outcomes (including quality of care, procedures, and economic costs).

METHODS

The American Heart Association, through its Statistics Committee, continuously monitors and evaluates sources of data on heart disease and stroke in the United States to provide the most current information available in the annual Statistical Update. The 2021 Statistical Update is the product of a full year's worth of effort by dedicated volunteer clinicians and scientists, committed government professionals, and American Heart Association staff members. This year's edition includes data on the monitoring and benefits of cardiovascular health in the population, an enhanced focus on social determinants of health, adverse pregnancy outcomes, vascular contributions to brain health, the global burden of cardiovascular disease, and further evidence-based approaches to changing behaviors related to cardiovascular disease.

RESULTS

Each of the 27 chapters in the Statistical Update focuses on a different topic related to heart disease and stroke statistics.

CONCLUSIONS

The Statistical Update represents a critical resource for the lay public, policy makers, media professionals, clinicians, health care administrators, researchers, health advocates, and others seeking the best available data on these factors and conditions.

Review of Trials on Exercise-Based Rehabilitation Interventions Following Acute Decompensated Heart Failure: OBSERVATIONS FROM THE WHO INTERNATIONAL CLINICAL TRIALS REGISTRY PLATFORM

PURPOSE

Cardiac rehabilitation is an important intervention for patients with heart failure. However, its clinical application in acute decompensated heart failure (ADHF) remains underutilized with limited research available. An assessment of current research in this area will help guide future investigations. The aim of this review is to summarize the current research focusing on rehabilitation interventions following recovery from ADHF.

REVIEW METHODS

A systematic search was carried out on all trials registered in the clinical trial registry database of the World Health Organization-International Clinical Trial Registry Platform (WHO-ICTRP). Studies focusing on ADHF and utilizing any exercise and rehabilitation-based intervention were included.

RESULTS

A majority of 11 trial protocols, including 3827 participants with low ejection fraction (<40%), were identified from the WHO-ICTRP database. Majority of the protocols (64%) focused on exercise-based interventions with approximately one-quarter (29%) focusing on neuromuscular electrical stimulation and one on noninvasive ventilation during exercise. Irrespective of the mode of exercise, all protocols employed low-moderate intensity training with outcomes focusing on physical function and quality of life.

CONCLUSION

Studies on rehabilitative interventions for ADHF are still in their early stages. More research is needed using innovative methodologies and testing for feasibility and fidelity.

Exercise-Based Cardiac Rehabilitation Programs in Heart Failure Patients

Exercise training is recommended for patients with heart failure by major societies' guidelines. It improves exercise capacity and quality of life, reduces symptoms of depression, can improve survival, and reduce the risk for hospitalizations. Exercise-based cardiac rehabilitation can be offered with different modalities, such as continuous or interval aerobic training, resistance, and inspiratory muscle training. The intervention must follow an accurate evaluation of the patient's cardiovascular conditions and functional capacity. Despite the multiple benefits of exercise training, there is a lack of adherence to exercise-based programs, due to socioeconomic factors, patients' characteristics, and lack of referral.

Feasibility of home-based cardiac rehabilitation using an integrated telerehabilitation platform in elderly patients with heart failure: A pilot study

BACKGROUND

Cardiac rehabilitation (CR) is a widely recommended evidence-based intervention for patients with cardiovascular disease. However, the participation rate in CR has been reported to be low globally, mainly due to barriers in access to the CR center. We evaluated the feasibility and safety of a new remote real-time monitoring system for supervising home-based CR among elderly patients with heart failure (HF).

METHODS

Hospitalized patients or outpatients followed for HF were enrolled. Patients received 12-week home-based CR under remote supervision using an integrated platform for telerehabilitation. Feasibility was evaluated by the participation and completion rates of the home-based CR sessions. Safety was assessed by adverse events during the sessions. All patients underwent baseline and 12-week assessment of exercise tolerance and lower extremity muscle strength.

RESULTS

All 10 patients (mean age 76 ± 7 years; 60% male) who participated in the study completed the program without withdrawal during the study period. Median participation rate in the exercise sessions was 94.4% (interquartile range: 88.9-97.9%). While fatigue, common cold, and palpitation were observed, no serious cardiovascular events were reported. Six-minute walk distance significantly improved from 383 ± 94 m to 432 ± 83 m (p=0.003).

CONCLUSIONS

Home-based CR under real-time supervision was feasible and safe among elderly HF patients. Our study suggests that home-based CR using an integrated telerehabilitation platform may be a potential option for patients who are unable to participate in center-based CR due to geographic or social accessibility and physical barrier issues.