Effectiveness of an Antiplatelet Agent for Coronary Artery Ectasia Associated with Silent Myocardial Ischemia
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概要
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A 74-year-old Japanese male was referred to our hospital because of an abnormal electrocardiogram. The electrocardiogram revealed tall P waves in leads II, III, and aVF. Echocardiography disclosed hypokinesis extending from the anteroseptal region to the apex. Iodine-123 15-(p-iodophenyl)-3-(R,S)-methylpentadecanoic acid (123I-BMIPP) scintigraphy revealed reduced uptake from the anteroseptal region to the apex. Coronary arteriography demonstrated diffuse dilatation of the right and left coronary arteries without organic stenosis, and left ventriculography showed hypokinesis at the same area. Furthermore, the coronary flow reserve in the left anterior descending artery was decreased. He was treated with an antiplatelet agent. Ten months later, the left ventriculography, 123I-BMIPP scintigraphy findings and coronary flow reserve were normalized. These findings demonstrate that antiplatelet therapy may be useful in the preservation of left ventricular function in patients with coronary artery ectasia.
著者
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Katoh Shuji
Division Of Cardiovascular Medicine Murakami Memorial Hospital Asahi University
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ITO Kazuki
Division of Cardiology, Murakami Memorial Hospital, Asahi University
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OKANO Akira
Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicin
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KAWASAKI Tatsuya
Division of Cardiology, Murakami Memorial Hospital, Asahi University
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Katoh Shuji
Division of Cardiovascular Medicine, Murakami Memorial Hospital, Asahi University
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Yoneyama Satoshi
Division of Cardiovascular Medicine, Murakami Memorial Hospital, Asahi University
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Nagata Kazuhiro
Division of Cardiovascular Medicine, Murakami Memorial Hospital, Asahi University
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Okamoto Akio
Division of Cardiovascular Medicine, Murakami Memorial Hospital, Asahi University
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