De Backer G, Jacobs D, Prineas R, Crow R, Vilandre J, Blackburn H
Cardiology. 1978;63(1):53-63. doi: 10.1159/000169881.
The yield and reproducibility of various methods of ventricular premature beat (VPB) detection are examined in otherwise healthy middle-aged men first found to have VPB in a 2-min lead I ECG rhythm strip. With a combination of an isometric and treadmill exercise test, VPB were repeatedly detected in 83%. Test-retest reliability in classifying the subjects by frequency of VPB was 67%. The reliability of detecting complex VPB was 47% for multiform VPB, 35% for pairs of VPB, 17% for runs and 36% for VPB showing the R-on-T phenomenon. These data suggest that simple and complex VPB detected by the described methods among normal men are poorly reproducible in the individual. Taking the VPB reproducibility for the group as a whole, the proportion of subjects having different frequency or kinds of ectopic beats is reasonably stable for the different test occasions.
在最初于2分钟标准肢体导联I心电图节律条中发现室性早搏（VPB）的健康中年男性中，对各种室性早搏检测方法的检出率和可重复性进行了研究。通过等长运动试验和跑步机运动试验相结合的方式，83%的受试者反复检测到室性早搏。根据室性早搏频率对受试者进行分类的重测信度为67%。对于多形性室性早搏，检测复杂室性早搏的信度为47%；对于成对室性早搏，信度为35%；对于室性早搏连发，信度为17%；对于表现为R波落在T波上现象的室性早搏，信度为36%。这些数据表明，通过所述方法在正常男性中检测到的简单和复杂室性早搏在个体中重现性较差。就整个群体的室性早搏重现性而言，不同检测场合下具有不同频率或类型异位搏动的受试者比例相当稳定。
