Clinical study on treating hydrocephalus by ventriculo - hepatoportal shunt operation via round ligament of liver

经肝圆韧带 侧 脑室 -门静脉分流术治疗脑积水的临床研究

The ventriculo - atrial ( VA ) interval and TCL were measured just before pacing .

测量右 心室起搏之前的 心室心房（VA）间期和TCL。