Knowledge, attitudes, and practices of patients with coronary artery disease and their families regarding coronary artery bypass grafting, multimodal imaging examinations, and postoperative daily management

Objective To assess the knowledge, attitudes, and practices (KAP) of patients with coronary artery disease (CAD) and their families regarding coronary artery bypass grafting (CABG), multimodal imaging examinations, and postoperative daily management. Methods A cross-sectional study was conducted on patients with CAD and their families between January and April 2025, at TEDA International Cardiovascular Hospital, using a self-designed, validated questionnaire. Results A total of 512 (96.24%) valid responses were obtained. Among the participants, 338 (66.0%) were CAD patients and 174 (34.0%) were family members. A total of 322 (62.9%) participants were male, and 205 (40.0%) had undergone coronary stenting prior to the current hospitalization. The mean scores for knowledge, attitudes, and practices were 6.26 ± 5.34 (range: 0–26), 28.89 ± 4.10 (range: 8–40), and 32.49 ± 6.23 (range: 10–50), respectively. Multivariable analysis revealed that among patients, higher education, retirement/self-employment, higher income, prior MI hospitalization, and longer CAD duration (3 years) were associated with better knowledge, which correlated with attitude. Among family members, higher income predicted better knowledge. Better practice was associated with attitude in patients and with attitude, knowledge, female sex, absence of hypertension, and prior MI in family members. Conclusion Significant knowledge deficits and suboptimal practices were identified among CAD patients and their families regarding CABG and postoperative management, despite generally positive attitudes. Clinicians and radiologists should prioritize educational programs that address gaps in knowledge and emphasize the interplay between attitudes and practices to enhance postoperative management and long-term outcomes for CAD patients and their families.