检测右室切开术后小儿与健康小儿的心室晚电位发生率。 方法 33例病儿与38例健康儿(对照组)均作标准12导联心电图(ECG)与信号平均心电图(SAECG)。病例组平均年龄8.3岁(1～17岁),术时平均年龄3岁(1～9岁),术后平均随访6年(1个月～15年)。18例为典型法乐四联症,其中10例切除右室流出道异 Detection of ventricular late ventricular tachycardia in children and healthy children after the occurrence of potential. Methods Standard 12-lead electrocardiogram (ECG) and signal average electrocardiogram (SAECG) were obtained from 33 healthy children and 38 healthy children (control group). The average age of patients in group A was 8.3 years (range, 1 to 17 years). The mean age was 3 years (range 1 to 9 years). The average follow-up time was 6 years (ranged from 1 month to 15 years). 18 cases were typical tetralogy of Fallot, of which 10 cases of right ventricular outflow tract abnormalities