Abstract
A 49 year old man had severe refractory Prinzmetal's variant angina and angiographically documented coronary arterial spasm of a dominant circumflex artery. The spasm was provoked by methergine (an ergot alkaloid) and seemed resistant to various forms of medical therapy including administration of nitrates, nifedlpine, verapamll, diltiazem and amiodarone. The attacks of angina at rest persisted at the rate of 7 to 15/day and were frequently associated with atrioventricular (A-V) block. After unsuccessful plexectomy performed in another Institution, the patient underwent complete cardiac denervatlon (produced by auto-transplantation). The follow-up data have interesting implications in relation to treatment of refractory variant angina, as well as possible mechanisms of coronary arterial spasm.
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