Abstract
Anomalous origin of coronary artery is rare and important reason of chest pain, syncope, and sudden death in young and middle-aged patients. This case reported a patient with interarterial anomalous right coronary artery and chest pain, which was confirmed to be the result of severe vasospasm of the proximal left anterior descending artery. The patient had reoccurred spontaneous chest pain and the dynamic ST segment and T wave changes at anterior walls. Coronary angiography confirmed left coronary artery spasm. Chest pain was controlled by diltiazem and isosorbide mononitrate. During 3 months of follow-up after discharge, the patient did not have chest pain anymore.
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