Abstract
Spasm of the proximal right coronary artery was arteriographically demonstrated during an episode of chest pain in a patient with Prinzmetal's variant form of angina. A right aortocoronary saphenous vein bypass procedure was performed but, despite a patent graft, the angina recurred and the patient died. The only significant finding at autopsy was an eccentric atherosclerotic plaque that narrowed the right coronary artery by 75 percent at the site of the spasm. These findings support Prinzmetal's hypothesis that this variant form of angina is produced by spasm of a coronary artery with a seriously compromised lumen.
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