European Journal of Molecular & Clinical Medicine

Background: Myocardial bridging can occasionally generate clinically important complications, despite usually being a benign condition. Myocardial bridging can be associated with stable and unstable angina, myocardial infarction, myocardial stunning, atrioventricular nodal block, ventricular tachycardia and sudden death. Present study was aimed to study clinical, angiographic profile and follow-up of patients with myocardial bridges at a tertiary hospital.
Material and Methods: Present study was single-center, prospective, observational study, conducted in patients, >18 years, of both sexes, who underwent diagnostic conventional coronary angiography. Myocardial bridge (MB) was identified based on narrowing of coronary artery in systolic phase resulting in at least 50% reduction of luminal diameter in comparison with the diastolic phase.
Results: During study period, out of 1962 diagnostic conventional coronary angiography procedures satisfying study criteria, myocardial bridge (MB) was noticed in 81 cases, incidence was 4.13 %. Common indications for diagnostic conventional coronary angiography among patients of myocardial bridge (MB) were unstable angina (USA) (19.75 %), STEIWMI (18.52 %), chronic stable angina (CSA) (16.05 %), STEAWMI (13.58 %), atypical chest pain (9.88 %), Others (8.64 %), pre-surgery (8.64 %) & NSTEMI (4.94 %). In patients of myocardial bridge (MB) on follow up symptoms noted were atypical chest pain (38.27 %), dyspnoea on exertion (27.16 %) & chest pain (23.46 %). On follow up, myocardial bridge (MB) was associated with 2 cases of acute myocardial infarction, no major adverse cardiac events, myocardial ischemia or cardiovascular death noted.
Conclusion: Clinical suspicion of Myocardial bridges should be considered in young patients with acute coronary syndrome with typical or atypical chest pain, though casual association needs further studies with larger sample size & longer follow up.