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Year : 2021  |  Volume : 67  |  Issue : 3  |  Page : 171-173

Severe myocardial bridge presenting as paroxysmal atrioventricular block

1 Division of Cardiology, Department of Internal Medicine, Taichung Armed Forces General Hospital, Taichung City, Taiwan
2 Division of Cardiology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei City, Taiwan

Correspondence Address:
C S Lin
Division of Cardiology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei City
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jpgm.JPGM_1027_20

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Chest pain complicated with electrocardiographic changes is not an uncommon scenario in emergency departments, which should be examined cautiously. We describe a 51-years-old man with a myocardial bridge of coronary artery presenting with simultaneous Mobitz type I atrioventricular block on electrocardiography. Echocardiography excluded valvular abnormality and systolic/diastolic dysfunction. Coronary angiography confirmed the diagnosis of a myocardial bridge at the middle segment of the left anterior descending artery, involving the most dominant septal perforator branch with marked systolic compression. The patient underwent coronary artery bypass grafting surgery and was followed up uneventfully at the outpatient department with medical treatment of diltiazem and clopidogrel. The present case is being reported to highlight that clinicians should be alert to such a congenital abnormality as a potential cause of repeated myocardial infarction and conduction abnormality.


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Online since 12th February '04
2004 - Journal of Postgraduate Medicine
Official Publication of the Staff Society of the Seth GS Medical College and KEM Hospital, Mumbai, India
Published by Wolters Kluwer - Medknow