Increased precordial QTc dispersion predicts ventricular fibrillation during acute myocardial infarction.
Electrocardiograms of 19 consecutive patients with acute myocardial infarction complicated by early ventricular fibrillation were compared with those in 19 case-matched patients with acute myocardial infarction not complicated by ventricular fibrillation. The mean precordial QTc interval dispersion in patients with ventricular fibrillation was greater than that of patients without ventricular fibrillation (73 +/- 28 ms vs 30 +/- 12 ms, p < 0.001).
Yunus
A
A
Division of Cardiology, Foothills Hospital, Calgary, Alberta, Canada.
Gillis
A M
AM
Duff
H J
HJ
Wyse
D G
DG
Mitchell
L B
LB
D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D009203:Myocardial Infarction / Q000150:complications* / Q000503:physiopathology*; D011237:Predictive Value of Tests; D014693:Ventricular Fibrillation / Q000209:etiology / Q000503:physiopathology*; D016276:Ventricular Function