Surgical strategies and outcomes for myocardial bridges coexisting with other cardiac conditions

• Published in: European journal of medical research 2023-11, Vol.28 (1), p.1-488, Article 488
• Main Authors: Zhang, Mingkui, Xu, Xiruo, Wu, Qingyu, Li, Hongyin, Xu, Zhonghua, Xue, Hui, Jin, Yongqiang, Fan, Lixin, Li, Lina
• Format: Article
• Language: English
• Subjects: Angina pectoris; Atherosclerosis; Cardiac arrhythmia; Cardiac patients; Cardiomyopathy; Cardiovascular disease; Care and treatment; Congenital diseases; Coronary artery bypass; Coronary artery bypass grafting; Coronary vessels; Follow-up; Genetic disorders; Heart attacks; Heart failure; Ischemia; Medical imaging; Medical records; Medical research; Medicine, Experimental; Mortality; Myocardial bridging; Myotomy; Patient outcomes; Patients; Quality of life; Questionnaires; Statistical analysis; Surgery; Surgical outcomes; Surgical treatment
• ISSN: 2047-783X; 0949-2321; 2047-783X
• DOI: 10.1186/s40001-023-01478-9

Background Myocardial bridges are congenital coronary artery anomalies. There are still many controversies surrounding surgical treatment strategies for myocardial bridges combined with other heart disorders. The purpose of this study was to evaluate the surgical treatment strategies and outcomes in patients with these conditions. Methods Between March 2004 and October 2021, our institution witnessed 77 patients diagnosed with myocardial bridging who underwent surgical intervention. According to the myocardial bridge and combined heart disorder, four groups were identified: 1. isolated LAD supra-arterial myotomy group, 2. LAD CABG and(or not) myotomy group, 3. LAD supra-arterial myotomy and grafting of other branches group, and 4. LAD supra-arterial myotomy and other cardiac surgery group. The perioperative outcomes, symptoms, life quality, mortality, and major adverse cardiac events (MACEs) were analyzed. Results There were no deaths during hospitalization and no rethoractomy for postoperative bleeding or major adverse cardiac events (MACEs). The follow-up period ranged from 2 months to 199.2 months (55.61 [+ or -] 10.21) months, the 10-year cumulative survival rates for the four groups of patients were 95.0%, 100%, 100% and 74.1%, and the 10-year freedom rates from the MACEs were 83.9%, 92.0%, 87.5% and 76.2%, respectively. Conclusions Supra-arterial myotomy is preferred in patients with isolated myocardial bridge, and acceptable results can be achieved by choosing supra-arterial myotomy in combination with CABG or other cardiac surgery simultaneously for patients with myocardial bridges and other heart disorders. Keywords: Myocardial bridging, Myotomy, Coronary artery bypass grafting, Surgical treatment, Follow-up