Jaschke W
Chirurg. 1981 Mar;52(3):164-7.
Persistent left superior vena cava is a rare malformation that causes no functional disturbance. In one case of this anomaly associated with dextropositio ventriculi cardiac pacing was necessary using the approach from the left vena cephalica because of a variety of preceding problems and severe complications. The electrode could be stably positioned in the coronary vein, vena cordis media. The evidence of pacemaker malfunction conditioned by increase of threshold, of the occurrence of electrode perforation or electrode-induced coronary vein thrombosis has not been observed. The electrocardiogram during stimulation shows the feature of right bundle-branch block. The described method was used to avoid a repetitive intervention.
永存左上腔静脉是一种罕见的畸形，不引起功能障碍。在1例伴有心脏右位的该畸形病例中，由于先前存在多种问题和严重并发症，需经左头静脉途径进行心脏起搏。电极能够稳定地置于冠状静脉（心中静脉）内。未观察到因阈值升高、电极穿孔或电极诱发的冠状静脉血栓形成导致起搏器功能障碍的情况。刺激期间的心电图显示右束支传导阻滞的特征。采用所述方法避免了重复干预。
