Reasons for pacing leads abandonment during pacemaker replacement: a single center experience with 235 cases / 中华心血管病杂志

ABSTRACT

<p><b>OBJECTIVE</b>To analyse the reasons for pacing lead abandonment during pacemaker replacement.</p><p><b>METHOD</b>Clinical data of patients underwent permanent pacemaker replacement between Jan 1st, 1976 to Dec 31st 2006 in Fuwai Hospital were obtained and the reasons for pacing leads abandonment were analyzed.</p><p><b>RESULTS</b>Pacemaker was replaced in 1023 patients during this period and 235 pacing leads were abandoned, 131 leads (55.7%) were abandoned for leads malfunction, including leads body fracture (35, 14.9%), isolation defects (10, 4.3%), dislocations (10, 4.3%) and excessively high threshold values (76, 32.3%). Other reasons for leads abandonment were infection (50, 21.3%), incompatibility between the leads and new generator (30, 12.8%), need to degrade the pacing system (13, 5.5%) and other rare reasons (11, 4.7%).</p><p><b>CONCLUSION</b>The most often reason for leads abandonment during pacemaker replacement is lead malfunction, including lead body fracture, isolation defect, dislocation and excessively high threshold value of the leads.</p>