Efficacy Analysis of Pace/Sense Lead Implantation in Management of Cardioverter-Defibrillator Lead Malfunction
YU Hai-bo
WANG Dong-mei
LIANG Yan-chun
XU Guo-qing
LIU Rong
WANG Zu-lu
HAN Ya-ling
Abstract：Objective To evaluate the efficacy and safety of pace/sense lead implantation in management of implant-able cardioverter defibrillator ( ICD) lead failure. Methods 4 patients were implanted with pace/sense lead to manage defib-rillation lead malfunction. Cause of the lead failure was analyzed, and the efficacy and safety of pace/sense lead replacement were evaluated. Results 4 patients with defibrillation lead malfunction in the right ventricle underwent inappropriate detec-tion and shocks. Among them, the high voltage impedance of defibrillation leads of all the patients were in the normal range. 3 cases experienced inappropriate force on the operation side. The cause of lead malfunction might be fraction of pace/sense lead in 3 patients and early abrasion of pace/sense in 1 patient. An additional pace/sense lead was implanted through trans-axillary venous for 4 patients, and the patients were then followed up for 7-70 months and no more inappropriate sense and shocks recurred, and all the changes of lead parameters were within the normal range. Conclusion A possible main cause for lead malfunction is the inappropriate force in the operation side. An additional pace/sense lead implantation can manage leads malfunction in ICD under normal condition of defibrillation.
Keywords：DefibrillatorimplantableCardiovascular diseaseElectrodeimplantedEquipment failure
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 86-89 )