Application of Case Management Model in Cardiac Rehabilitation of Elderly Coronary Heart Disease Patients after Coronary Artery Bypass Grafting

To investigate the impact of case management model on cardiac rehabilitation in elderly coronary heart disease (CHD) patients undergoing coronary artery bypass grafting (CABG). Sixty-four elderly CHD patients who underwent CABG at our hospital from June 2023 to October 2024 were selected and randomly divided into two groups. One group received conventional nursing care (32 cases, control group), while the other group underwent a case management model (32 cases, observation group). Cardiac function levels, exercise endurance, and myocardial injury biomarkers were compared between the two groups. Post-intervention, the observation group exhibited significantly higher cardiac function levels and exercise endurance, along with lower myocardial injury biomarker levels compared to the control group (all P