Vorob'ev L P, Maev I V, V'iuchnova E S
Kardiologiia. 1992 Jul;32(7-8):28-31.
A complex Doppler echocardiographic study was performed in 134 patients with complete block of the left bundle branch, its anterior branch or with concurrence of these two types of intraventricular conduction disturbance. The authors identified 5 types of paradoxical ventricular septal motion, which were related to the specific features of intraventricular asynchronism and ventricular electric systole. Type I shows the greatest decrease in left ventricular contractility, left atrial overload and phasic destruction of left ventricular systole, which reflects the processes of depolarization and repolarization propagation in the myocardium. Type IV is characterized by the lowest number of hemodynamic abnormalities. Cardiac hemodynamics is also related to the type of intraventricular block, being the least changed in isolated anterior left bundle-branch and the most changed in concurrent anterior branch and entire left bundle-branch block.
对134例左束支完全阻滞、左束支前分支阻滞或合并这两种类型室内传导障碍的患者进行了复杂的多普勒超声心动图研究。作者确定了5种矛盾性室间隔运动类型，这些类型与室内不同步和心室电收缩的特定特征有关。I型显示左心室收缩力下降最大、左心房负荷过重以及左心室收缩的阶段性破坏，这反映了心肌中去极化和复极化传播的过程。IV型的血流动力学异常数量最少。心脏血流动力学也与室内阻滞类型有关，在孤立的左束支前分支阻滞中变化最小，在合并前分支阻滞和整个左束支阻滞中变化最大。
