Abstract
Cardiac rehabilitation (CR) has been categorized as a class Ia recommendation for secondary prevention after major cardiac interventions or in patients with certain cardiac comorbidities. The benefits of CR have been established and range from reducing readmissions to improving quality of life. Given the increasing amount of literature on CR over the past few years and the evolution of this field, there is a need to synthesize these data. Thus, this review aims to combine the latest research findings to provide a comprehensive review of CR literature. We discuss the components needed to create a successful CR program, including individualized training plans, routine clinical assessments, exercise supervision, and nutritional assessments. Overall rates of CR utilization remain low. Therefore, we explore potential reasons for this underutilization observed in the literature, including CR deserts, under-referral, and the lack of education on benefits, time, and transportation. Moreover, we discuss solutions for underutilization that have been analyzed in the literature, including motivational interviewing, gender-specific regimens, transportation assistance, and automatic referrals. Realizing the underutilization of CR, we also assess virtual CR (VCR) and variations in various regimens within the programs. We compare exercise and body metrics, patient outcomes, feasibility, and patient preferences between VCR and traditional CR published in the literature. VCR does not appear to be inferior to conventional CR in many metrics, although more research is needed to compare the two modalities. We recommend that providers explain the outcomes of the two modalities and allow patients to choose the regimen that works best for them. We discuss how VCR may be better suited to patient populations with specific barriers to care. We also discuss the ongoing current CR trials, many of which are focused on solutions to underutilization. Lastly, we further discuss the remaining gaps in the CR literature and areas where future research could be beneficial, such as establishing large-scale VCR studies and studies focused on expanding CR indications.