Mazur N A, Sumarokov A B
Kardiologiia. 1978 Apr;18(4):36-44.
Monomorphic ventricular extrasystoles, no less than 30 within an hour, were revealed in 89 of 300 patients with chronic ischemic heart disease during continuous 24-hour ECG recording on magnetic tape. A fixed type of the linkage interval (oscillations of no more than 0.1 sec) was established in 58 (62%) and the variable tupe (oscillations of more than 0.1 sec) in 31 (38%) patients. Oscillations in the linkage interval of more than 0.1 sec gave grounds to suspect parasystole. A deeper analysis revealed parasystole in 8 cases (2.6% of the total number of patients), the remaining cases were included in the group of extrasystoles with a variable non-parasystolic type of the linkage interval. This group of extrasystoles occupies an intermediate position between para- and extrasystole. The large number of transitional forms between extra- and parasystole suggests their common origin.
在300例慢性缺血性心脏病患者中，89例在连续24小时磁带心电图记录过程中出现单形性室性期前收缩，每小时不少于30次。58例（62%）患者的联律间期固定（波动不超过0.1秒），31例（38%）患者的联律间期可变（波动超过0.1秒）。联律间期波动超过0.1秒有理由怀疑并行心律。进一步分析发现8例并行心律（占患者总数的2.6%），其余病例归入联律间期可变的非并行心律型期前收缩组。这组期前收缩处于并行心律和期前收缩之间的中间位置。期前收缩和并行心律之间大量的过渡形式提示它们有共同的起源。
