Occhetta Eraldo, Bortnik Miriam, Marino Paolo
Divisione Clinicizzata di Cardiologia, Facoltà di Medicina e Chirurgia di Novara, Università degli Studi del Piemonte Orientale, Azienda Ospedaliera Maggiore della Carità, Corso Mazzini 18, 28100 Novara, Italy.
Europace. 2006 May;8(5):385-7. doi: 10.1093/europace/eul013. Epub 2006 Mar 23.
This report describes the case of an 86-year-old male with syncopal paroxysmal 2:1 atrioventricular block and a single chamber VVI pacemaker programmed to bipolar sensing and unipolar pacing. After recurrence of syncope, a complete loss of ventricular capture with regular ventricular sensing was observed on ECG; fluoroscopic examination suggested perforation of the right ventricle by the helix of the implanted screw-in lead. Reprogramming the pacemaker to bipolar pacing/sensing resulted in regular ventricular capture and sensing, suggesting effective anodal stimulation from the ring electrode permitting complete non-invasive palliation.
本报告描述了一例86岁男性患者，其患有阵发性晕厥伴2:1房室传导阻滞，植入了单腔VVI起搏器，编程为双极感知和单极起搏。晕厥复发后，心电图显示心室完全不能夺获但心室感知正常；透视检查提示植入的旋入式导线螺旋体穿破右心室。将起搏器重新编程为双极起搏/感知后，心室夺获和感知恢复正常，提示环状电极进行有效的阳极刺激可实现完全的非侵入性缓解。
