Journal of Pediatric Cardiology and Cardiac Surgery

Online ISSN: 2433-1783 Print ISSN: 2433-2720
Japanese Society of Pediatric Cardiology and Cardiac Surgery
Japanese Society of Pediatric Cardiology and Cardiac Surgery Academy Center, 358-5 Yamabuki-cho, Shinju-ku, Tokyo 162-0801, Japan
Journal of Pediatric Cardiology and Cardiac Surgery 5(1): 7-11 (2021)
doi:10.24509/jpccs.19-011

Case ReportCase Report

A Case of Atresia of Left Coronary Artery Ostium with Rare Myocardial Scintigraphy Findings

Department of Pediatrics Kindai University School of Medicine ◇ Osaka, Japan

受付日:2019年12月18日Received: December 18, 2019
受理日:2020年7月22日Accepted: July 22, 2020
発行日:2021年3月1日Published: March 1, 2021
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The coronary blood flow in cases of atresia of the left coronary artery ostium is supplied through collateral vessels from the right coronary artery. Therefore, the severity of symptoms depends on the condition of this vessel. We experienced a seven-year-old girl who complained of chest pain during exercise. We performed myocardial scintigraphy using techenetium-99m-tetrofosmin and observed the rare reverse redistribution phenomenon. We suspected myocardial ischemia. We performed coronary angiography and diagnosed her with atresia of the left coronary artery ostium. As there was no stenosis in the coronary artery in this case, the coronary artery was successfully dilated by adenosine loading, thereby increasing the coronary blood flow and thus the blood flow in the myocardium. Our findings may help prevent cardiac accident.

Key words: left coronary artery; atresia; myocardial scintigraphy; reverse redistribution phenomenon; myocardial ischemia

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