Village-Based Management of Chronic Cardiovascular Disease in Qu Jiang Elderly Population Registry: The BOUQUET Cohort Study

Atrial Fibrillation (AF), Coronary Heart Disease (CHD), Heart Failure, Hypertension

This is a prospective observational cohort study conducted in Qujiang District, Zhejiang Province, China, aiming to evaluate the effectiveness of a comprehensive management program for elderly patients with chronic cardiovascular diseases (CVDs). The program integrates pharmacological treatment, lifestyle modification, health education, and long-term follow-up, with enhanced monitoring using 7-day ECG recording. The study focuses on major chronic CVDs including hypertension, coronary artery disease, atrial fibrillation, and heart failure. Approximately 30,000 participants aged ≥60 years will be enrolled and followed for up to 10 years.

With the acceleration of global population aging, older adults have become the primary population at high risk for chronic cardiovascular diseases (CVD). Cardiovascular disease is one of the leading causes of mortality and disability worldwide, and its prevalence and associated disability are markedly higher among the elderly compared to younger age groups. According to data from the World Health Organization (WHO), CVD accounts for approximately 31% of global deaths, with older adults carrying a substantial proportion of this burden. Due to age-related physiological changes, the presence of multiple comorbidities, and lifestyle factors, elderly individuals often face more complex health challenges. In this population, chronic hypertension, coronary artery disease, heart failure, and diabetes are highly prevalent and frequently coexist. These conditions tend to be chronic, progressive, and involve multiple organ systems, further complicating disease management. Moreover, elderly patients often experience poor drug tolerance, multiple complications, and impaired quality of life, which necessitate not only more refined clinical interventions but also individualized management strategies tailored to patient-specific needs. Traditional single-disease treatment strategies are often insufficient to address the multifaceted needs of elderly patients with chronic cardiovascular diseases. Existing evidence suggests that comprehensive management models-integrating multidisciplinary collaboration, personalized treatment, long-term follow-up, and health education-can significantly improve cardiovascular outcomes, reducing hospitalization rates, mortality, and other adverse events. However, systematic research on comprehensive management in elderly populations remains limited. Most current studies focus on specific diseases or therapeutic approaches, lacking multidimensional assessment and intervention strategies. Therefore, the present study aims to establish a comprehensive management cohort for chronic cardiovascular diseases in elderly populations, in order to explore how integrated management strategies influence cardiovascular health in real-world settings. This study will evaluate the effectiveness of such approaches in reducing cardiovascular events and mortality, thereby providing scientific evidence and guidance for future clinical practice. The Qujiang Project Team of the National Clinical Research Center for Cardiovascular Diseases will undertake this study.

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