Major Racial Differences in Coronary Constrictor Response Between Japanese and Caucasians With Recent Myocardial Infarction

Abstract

Soon after AMI, Japanese patients exhibited a 3-fold-greater incidence of spasm and greater vasoconstriction of nonspastic segments after acetylcholine than Caucasians. The causes of such differences warrant further investigation because they may have relevant pathophysiological and therapeutic implications.