Kovaleva L I
Kardiologiia. 1980 Dec;20(12):95-8.
Fifty patients with arrhythmia of the extrasystole type were examined by means of functional tests (atropine and physical exertion). Parasystole was revealed in 40 and extrasystole in 10 patients. The diagnosis of arrhythmia was based on determining the relative value of the longest pre-ectopic interval (R--R1, P--P1) and the relative value of the preceding cardiac cycle (R--R, P--P) prior to and after the functional tests. Reduction of the relative value of the longest pre-ectopic interval or increase of this interval by less than 10 per cent in the test was observed in extrasystole, an increase of the relative value of this interval by more than 10 per cent was encountered in parasystole. In cases with bigeminal rhythm, reduction of the absolute value of the longest pre-ectopic interval in the tests was characteristic of extrasystole while its increase was characteristic of parasystole.
对50例早搏型心律失常患者进行了功能试验（阿托品试验和体力活动试验）检查。40例患者发现有并行心律，10例患者有早搏。心律失常的诊断基于测定功能试验前后最长异位前间期（R-R1、P-P1）的相对值以及前一心搏周期（R-R、P-P）的相对值。早搏时，试验中最长异位前间期的相对值降低或该间期增加不到10%；并行心律时，该间期的相对值增加超过10%。在二联律病例中，试验中最长异位前间期绝对值的降低是早搏的特征，而其增加则是并行心律的特征。
