Korean J Med.
2002 Jun;62(6):675-679.
A myocardial sling in proximal right coronary artery
- Affiliations
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- 1The Heart Center, Chonnam National University Hospital, Korea. myungho@chollian.net
- 2The Research Institute of Medical Sciences of Chonnam National University, Gwangju, Korea.
Abstract
- Myocardial bridge is characterized by systolic compression of a portion of the coronary artery by a segment of overlying myocardium, commonly involves the middle segment of left anterior descending coronary artery. We present a case report of coronary angiographic evidence of systolic short segmental constriction in the proximal right coronary artery (RCA). A 42 year-old man presented with atypical chest discomfort and palpitation. Electrocardiography showed complete AV block with complete AH block on intracardiac electrocardiogram. Myocardial SPECT imaging demonstrated a mild reversible anterior and inferior wall perfusion defect. Diagnostic coronary angiogram revealed short segmental myocardial sling with wedge-shaped systolic compression in the proximal RCA.
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