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对象为首次心肌梗塞(简称心梗)者174(男 159,女 15)例,平均年龄 54±8岁。分常规治疗组(68例)溶栓治疗组(106例),于症状出现6小时内给予静脉溶栓治疗(链激酶1.5 万U 58例,尿激酶 1.5～2万U 17例,重组纤维蛋白溶解酶原活化素31例)。病人均作二维心超,极量运动试验:Holter EKG及体表信号平均心电图检查。在选带滤波范围40～250Hz,溶栓治疗组非Q型梗塞和左室晚电位(LP)发生率明显低于常规治疗组。体表信号平均心电图中经滤波的QRS时限,QRS终末40ms平方根电压(RMS_(40))及 QRS终末高频低振幅信
Subjects for the first time myocardial infarction (referred to as myocardial infarction) 174 (159, 15 female) cases, with an average age of 54 ± 8 years old. Patients in the conventional treatment group (n = 68) received thrombolytic therapy (n = 106). Intravenous thrombolysis was given within 6 hours after symptom onset (streptokinase 15,000 U in 58 cases, urokinase 1.5 to 20,000 U in 17 cases, recombinant fibrin 31 cases of lysozyme activator). Patients were made two-dimensional heart ultra, extreme exercise test: Holter EKG and body surface signal average ECG. In the band with filtering range of 40 ~ 250Hz, the incidence of non-Q infarction and left ventricular late potentials (LP) in the thrombolysis group was significantly lower than that in the conventional treatment group. The filtered QRS duration, the square root of QRS terminal 40ms (RMS_ (40)) and QRS terminal high frequency low amplitude amplitude signal