The Relativity Of Ventricular Repolarization And Other Index Signs For The Acute Myocardial Infarction Patients With The Ventricular Malignant Arrhythmias

Objective We want to obtain some newly index signs to predict malignant ventricular arrhythmias(VA) by comparing between acute myocardial infarction(AMI)patients and health persons also among the AMI patients themselves. Methods 50 patients have been diagnosed exactly as AMI in hospital, at the same time 50 health persons are collected as control. According the degree of VA, AMI patients are marked by a content number. We collect the basic information, dynamic electrocardiogram and the Ultrasonic Cardiogram of those subjects, and draw out three kind of information such as basic information, heart electrophysiology index signs, heart morphology signs etc. Results ⑴The QTV(20.57±8.07ms VS 29.50±9.44ms,P<0.01), QTCV(5.528%±2.247% VS 7.803%±2.415% P<0.01) of the AMI patients are significantly lower than those of the control group, that is the HRV, LVEF, QTV, QTCV are different between them. ⑵The occurrence frequency and serious degrees of the VA are related with HRV, LVd, LVEF, QTV, QTCV. ⑶The highest diagnosis efficiency is QTV and QTCV, and both are more positive value than the HRV, LVEF, LVd. ⑷Sex, QTCV, LVd all contribute to the happening of the VA of the post-AMI patients. Conclusion The QTV, QTCV are so difference between the case and the control and their diagnose value are not less than those classical signs' so we maybe draw such a conclusion that QTV, QTCV will be the newly independent index sign to MVA and sudden cordial death (SCD) of AMI patients.