Increased QTc dispersion predicts lethal ventricular arrhythmias complicating coronary angioplasty.
This study found that increased QT dispersion just before angioplasty is an useful marker to predict the risk for lethal ventricular arrhythmias during angioplasty. The fact that successful coronary revascularization decreased QT dispersion suggested that a part of increased QT dispersion is related to myocardial ischemia.
Department of Cardiology, Yokohama Minami Kyosai Hospital, Japan.
T
T
Ashikaga
M
M
Nishizaki
M
M
Arita
N
N
Yamawake
Y
Y
Kishi
F
F
Numano
M
M
Hiraoka
D000368:Aged; D015906:Angioplasty, Balloon, Coronary / Q000009:adverse effects*; D004562:Electrocardiography; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D015588:Observer Variation; D011379:Prognosis; D017180:Tachycardia, Ventricular / Q000209:etiology / Q000401:mortality / Q000503:physiopathology*