1.A myocardial sling in proximal right coronary artery.
Ok Young PARK ; Myung Ho JEONG ; Soeng Hyun LEE ; Young Jun HONG ; Woo Gon JEONG ; Sang Rok LEE ; Won KIM ; Joo Hyub YUM ; Ju Han KIM ; Jay Young RHEW ; Jeong Gwan CHO ; Jong Chun PARK ; Jung Chaee KANG
Korean Journal of Medicine 2002;62(6):675-679
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.
Adult
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Atrioventricular Block
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Constriction
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Coronary Vessels*
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Electrocardiography
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Humans
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Myocardium
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Perfusion
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Thorax
;
Tomography, Emission-Computed, Single-Photon
Result Analysis
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