Regression of Q waves following acute myocardial infarction.
The predictors and effects of Q wave regression following acute Q wave myocardial infarction were examined in 1965-1982 in 127 Japanese-American men who participated in a prospective epidemiologic study of cardiovascular disease. Of these 127 men, 53 (42%) showed total regression of Q waves, 17 (13%) showed partial regression, and 57 (45%) showed no Q wave regression following acute myocardial infarction. Age at myocardial infarction and location of myocardial infarction did not predict which men would undergo Q wave regression. Q wave status after myocardial infarction (total, partial, or no regression) did not predict survival or recurrence of myocardial infarction. This study found that a substantial proportion of acute myocardial infarction cases undergo Q wave regression, indicating that clinicians and investigators alike require additional evidence to identify people with previous myocardial infarction.
Marcus
E B
EB
Honolulu Heart Program, Kuakini Medical Center, HI 96817.
Yano
K
K
MacLean
C J
CJ
D004562:Electrocardiography; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000503:physiopathology*; D011446:Prospective Studies