Patients assigned to the control group underwent routine nursing care based on the standardized medical treatment, including admission health education (PCI postoperative risk management and medication instructions), psychological counseling, dietary and exercise guidance, individualized rehabilitation planning, and discharge instructions. After discharge, patients attended routine outpatient follow-up visits, including laboratory testing of blood lipids, blood pressure, and blood glucose, without structured follow-up or WeChat-based education. Routine outpatient education and guidance were provided only.

Patients in the observation group received a 3-month TCM intervention delivered by specially trained nurses, in addition to routine nursing care.

Patients assigned to the control group underwent routine nursing care based on the standardized medical treatment, including admission health education (PCI postoperative risk management and medication instructions), psychological counseling, dietary and exercise guidance, individualized rehabilitation planning, and discharge instructions. After discharge, patients attended routine outpatient follow-up visits, including laboratory testing of blood lipids, blood pressure, and blood glucose, without structured follow-up or WeChat-based education. Routine outpatient education and guidance were provided only.

Medication adherence will be assessed using the Medication Adherence Report Scale-5 (MARS-5). The scale consists of 5 items that evaluate nonadherent behaviors (e.g., forgetting to take medications, altering dosages). Each item is scored on a 5-point Likert scale (1="always" to 5="never"), with total scores ranging from 5 to 25. A higher total score indicates better medication adherence.

Self-efficacy will be assessed using the General Self-Efficacy Scale (GSS). The GSS is a validated 16-item instrument, with each item scored from 0 to 4. Higher total scores reflect greater self-efficacy in managing health and adhering to treatment recommendations.