title: Relationship between myocardial bridges and arrhythmic complications.
abstract: Myocardial bridge (MB) is defined as compression of coronary artery during systole while it is normal in diastole. In angiographic series, the prevalence of this anomaly was reported between 0.5% and 2.5%. It is occasionally seen in the middle segment of the left anterior descending coronary artery. Although MB is considered to be a benign anomaly, the association of MB with ischemia, systolic dysfunction, conduction abnormality, arrhythmias, and sudden cardiac death were reported. Herein, we report 3 cases of MB that were diagnosed with coronary angiography and were associated with arrhythmic complications. In 2 patients, complete atrioventricular block was present, and another patient was diagnosed with sick sinus syndrome with the help of an electrophysiological study. All patients underwent permanent cardiac pacemaker implantation.
authors.affiliation: Konya Universitesi, Meram Tip Fakultesi, Kardiyoloji Sekreterligi, Meram, Konya, Turkey. drhalilibrahimerdogan@gmail.com
authors.forename: Halil Ibrahim
authors.initials: HI
authors.lastname: Erdogan
authors.forename: Enes Elvin
authors.initials: EE
authors.lastname: Gul
authors.forename: Hasan
authors.initials: H
authors.lastname: Gok
mesh_terms: D000368:Aged; D001145:Arrhythmias, Cardiac / Q000209:etiology* / Q000503:physiopathology* / Q000628:therapy; D017023:Coronary Angiography; D003330:Coronary Vessel Anomalies / Q000000981:diagnostic imaging; D005260:Female; D006329:Heart Conduction System / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D054084:Myocardial Bridging / Q000150:complications* / Q000503:physiopathology*; D010138:Pacemaker, Artificial; D013599:Systole / Q000502:physiology; D016896:Treatment Outcome