Prevalence of myocardial bridge in angiographic population-A study from rural part of western India

Sunil K Karna; Mahendra Chourasiya; Rohan P Parikh; Tanvi Chaudhari; Utsav Patel

doi:10.4103/jfmpc.jfmpc_1075_19

Prevalence of myocardial bridge in angiographic population-A study from rural part of western India

J Family Med Prim Care. 2020 Apr 30;9(4):1963-1966. doi: 10.4103/jfmpc.jfmpc_1075_19. eCollection 2020 Apr.

Authors

Sunil K Karna¹, Mahendra Chourasiya², Rohan P Parikh³, Tanvi Chaudhari⁴, Utsav Patel⁴

Affiliations

¹ Consultant Cardiologist, Shree Krishna Hospital and Pramukh Swami Medical College, Karamsad, Gujarat, India.
² Assistant Professor, Department of Cardiology, MGM Medical College, Indore, Madhya Pradesh, India.
³ Interventional and Consultant Cardiologist, Olympus Heart Center, Akanksha Hospital and Research Institute, Anand, Gujarat, India.
⁴ Clinical Research Assistant, Shree Krishna Hospital and Pramukh Swami Medical College, Karamsad, Gujarat, India.

Abstract

Introduction: Intramural course of coronary artery is known as myocardial bridge (MB). Its prevalence is highly variable. Very few studies have been conducted in India, mostly from southern state and that too covering urban population. There are no studies from western India. In this study we aimed to estimate the prevalence of MB in coronary angiogram from rural part of western India.

Methods and results: A total of 4,438 patients underwent coronary angiography for various indications during the study period of 69 months. Mean age of the study population was 53.6 ± 11.2 years. MB was found in 212 (4.77%) of patients, predominantly in males. Unstable angina was the most common presentation among males (28.7%), whereas chronic stable angina was being the most common presentation among females (22.6%). Majority of MBs were seen in left anterior descending artery in its mid part (61%). Mean diameter compression of the affected segment was 32.6% ± 11.8%, with no significant difference seen among males and females or between mid and distal left anterior descending artery.

Conclusion: Our study showed the prevalence of MB similar to other Indian studies. Left anterior descending artery was most common artery involved. Mean compression was not statistically significant among either sex.

Keywords: Left anterior descending coronary artery; milking effect; myocardial bridge.