Ianushkevichus Z I, Zabela P V
Kardiologiia. 1981 Oct;21(10):43-6.
Results are given of the rhythmographic study of the frequency of extrasystole at rest, in the orthostatic position and during exercise in 236 patients with chronic ischaemic disease of the heart. The frequency dependence of extrasystole (the rate dependence of premature beats) was seen in 75.4% of cases. In the absence of the rate dependence of extrasystole, novocainamide, propranolol and atropine exerted marked antiarrhythmic effect less frequently than when such a dependence was present.
给出了对236例慢性缺血性心脏病患者在静息、直立位及运动时的早搏频率进行节律描记研究的结果。75.4%的病例可见早搏频率依赖性（早搏的心率依赖性）。在不存在早搏心率依赖性的情况下，与存在这种依赖性时相比，利多卡因、普萘洛尔和阿托品发挥显著抗心律失常作用的频率较低。
