
Cardiovascular disease (CVD) is the leading cause of morbidity and mortality worldwide, accounting for one-third of global deaths.1 The rapid evolution of digital health technologies has transformed CVD prevention and management by expanding access to supporting self-management and enabling personalized health behavior change.(2,3) Digital health interventions (DHIs) range from low-intensity approaches that provide information or reminders (e.g., text messaging and web-based educational programs) to interactive technologies that support self-monitoring (e.g., mobile applications and wearable devices), and to higher-intensity interventions that facilitate ongoing clinical management and decision-making (e.g., remote monitoring systems and telemedicine).(2,4)
Digital Health Interventions for CVD Prevention and Management
Evidence supporting DHIs for CVD continues to expand, demonstrating benefits for health behavior change, self-management support, and care coordination. A recent systematic review and meta-analysis of 52 randomized controlled trials (n=15,430) found that DHIs significantly reduced systolic blood pressure (mean difference: -3.74 mmHg), LDL cholesterol (-7.00 mg/dL), and body mass index (-0.86 kg/m²) compared to usual care, with hybrid interventions combining digital tools and human support showing the largest effects.2 However, the effectiveness of DHIs depends largely on their integration of behavioral medicine principles, such as goal setting, self-monitoring, feedback, motivational strategies, and social support, rather than technology features alone.5 Behavioral medicine provides the foundation for addressing the complex lifestyle and psychosocial determinants of CVD, including diet, physical activity, stress, depression, anxiety, and social isolation. By embedding theory-driven, evidence-based behavioral approaches into digital platforms, DHIs can enhance engagement, personalization, adherence, and ultimately cardiovascular outcomes.6
Emerging Innovations
Emerging innovations in artificial intelligence, machine learning, remote monitoring, and adaptive interventions are advancing personalized cardiovascular care. Just-In-Time Adaptive Interventions (JITAIs) tailor the timing, intensity, and content of support in response to an individual's changing behaviors, needs, and context to promote sustained behavior change.7 Applied in the context of CVD care to address physical inactivity, diet and medication adherence, JITAIs can be optimized via microrandomized trials (MRTs) to maximize user engagement while minimizing user fatigue. Additionally, co-design approaches and hybrid models combining digital tools alongside human support ensure scalable user-centered technological interventions. For example, the REHEARSE-AF trial demonstrated that smartphone-based ECG screening combined with clinical follow-up significantly increased atrial fibrillation detection compared to routine care,8 while the TIM-HF2 study showed that remote patient monitoring integrated with telemedical center support reduced mortality and hospitalizations among heart failure patients.9 These advances underscore the potential for technology-supported, human-centered interventions to enhance cardiovascular disease prevention and management.
Implementation Challenges
Despite significant progress, persistent implementation challenges limit widespread adoption of DHIs. Barriers include digital literacy gaps, inequitable access, fragmented technology platforms, privacy concerns, limited interoperability, inconsistent reimbursement models, and difficulties maintaining long-term user engagement.10 Successful implementation requires provider training, integration into clinical workflows, stakeholder engagement (e.g., patient and family members), and equity-focused design to ensure digital innovations reduce rather than widen health disparities.
Recommendations for Researchers, Clinicians, and Policymakers
Future efforts should focus on developing equitable, scalable, sustainable, and personalized DHIs that complement traditional cardiovascular care.(11,12) Priorities include rigorous evaluation of long-term outcomes, implementation strategies that address technological and social barriers, investment in digital literacy and infrastructure, interoperability standards, sustainable funding and reimbursement models for DHI delivery, and policies supporting sustainable delivery.(10,11) Collaborative efforts among researchers, clinicians, technology developers, policymakers, funders and communities will be essential to maximize the impact of digital health while advancing cardiovascular health equity.
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