Kinoshita S, Konishi G, Kawasaki T
Health Administration Center, Hokkaido University, Sapporo, Japan.
Cardiology. 1988;75(6):440-3. doi: 10.1159/000174414.
A 67-year-old man with interpolated ventricular extrasystoles is reported in whom alternate sinus QRS complexes were followed by interpolated ventricular extrasystoles with progressively lengthening coupling intervals until one of these alternate sinus complexes failed to be followed by an extrasystole. This is the first report to suggest the presence of type A alternating Wenckebach periodicity in the reentrant pathway of interpolated ventricular extrasystoles. It is suggested that 2:1 block occurred at a proximal level in the reentrant pathway, while Wenckebach block occurred at a distal level in the pathway.
报告了一名67岁患有插入性室性期前收缩的男性，其窦性QRS波群交替出现，随后是插入性室性期前收缩，联律间期逐渐延长，直到其中一个交替出现的窦性波群后未跟随期前收缩。这是首次报告提示插入性室性期前收缩折返途径中存在A型交替性文氏周期。提示在折返途径的近端水平发生了2:1阻滞，而在该途径的远端水平发生了文氏阻滞。
