Tsvetkova A S, Nuzhny V P, Kibler N A, Azarov Ya E, Shmakov D N
Institute of Physiology, Komi Research Center, Ural Division of Russian Academy of Sciences, Syktyvkar, Russia.
Bull Exp Biol Med. 2008 Aug;146(2):168-71. doi: 10.1007/s10517-008-0239-7.
The duration of ventricular myocardium excitation increases during atrioventricular stimulation of dog heart and the sequence of depolarization of the right and left ventricles is desynchronized. Significant shortening of the activation-recovery interval in the intramural and subendocardial layers of the left ventricular base leads to modification of the repolarization sequence in this area and to an increase of total dispersion of activation-recovery intervals in the cardiac ventricles, as a result of which repolarization sequence starts partially repeating the depolarization sequence.
在犬心房室刺激期间，心室心肌兴奋的持续时间增加，左右心室的去极化顺序不同步。左心室底部壁内和心内膜下层激活-恢复间期的显著缩短导致该区域复极化顺序的改变以及心室激活-恢复间期总离散度的增加，结果复极化顺序开始部分重复去极化顺序。
