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Vasospastic total occlusion at the left main tract in a single coronary artery.

Yasuhiro Maejima, Sciprofile linkTakanori Yasu, Naoki Fujiwara, Takeshi Ishida, Yasuyuki Kobayashi, Masatoshi Kuroki, Norifumi Kubo, Mikihisa Fujii, Muneyasu Saito
Published: 1 December 2001
Japanese Circulation Journal , Volume 65, pp 1091-1092; doi:10.1253/jcj.65.1091

Abstract: A 64-year-old man was admitted to hospital under the suspicion of unstable angina pectoris. Coronary angiography showed that he has a single coronary artery originating from the right coronary artery (RCA) without significant fixed stenosis. Acetylcholine was superselectively infused into the left main coronary artery (LMCA), and confirmed the coronary vasospastic occlusion associated with chest pain and elevation of the ST-segment in the precordial leads. This is the first report of the induction of a totally occlusive spasm of the LMCA of a patient with a RCA type single coronary artery, and this case suggests that spasm of the aberrant coronary artery is a potential mechanism for sudden death in patients with a single coronary artery.
Keywords: occlusion / spasm / Lmca / Single Coronary Artery / Vasospastic / Totally Occlusive

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