PERMANENT PACING SYSTEM MALFUNCTION DUE TO HIDDEN ADJACENT FRACTURES OF ATRIAL AND VENTRICULAR LEADS

Authors
Citation
Lx. Wang et Mje. Davis, PERMANENT PACING SYSTEM MALFUNCTION DUE TO HIDDEN ADJACENT FRACTURES OF ATRIAL AND VENTRICULAR LEADS, International journal of cardiology, 59(1), 1997, pp. 85-87
Citations number
3
Categorie Soggetti
Cardiac & Cardiovascular System
ISSN journal
01675273
Volume
59
Issue
1
Year of publication
1997
Pages
85 - 87
Database
ISI
SICI code
0167-5273(1997)59:1<85:PPSMDT>2.0.ZU;2-D
Abstract
Periods of failure of ventricular pacing and atrial sensing were disco vered on Holter recording in a 10-year-old boy 4 years after the impla ntation of a dual-chamber pacemaker with endocardial bipolar leads bro ught out through the right atrial wall. The old generator was explante d and the old leads tested. There was considerable atrial oversensing of an electrical artefact. The pacing threshold of ventricular lead wa s 1.8 V compared with 0.3 V 6 days post implantation. Post-operative l ateral chest X-ray disclosed fractures of both atrial and ventricular leads at the approximate site of exit from the right atriotomy. Review of the preoperative lateral film showed that the fractures had been h idden by an ECG electrode. (C) 1997 Elsevier Science Ireland Ltd.