Primary Prevention Implantable Cardioverter Defibrillator Recipients: The Need for Defibrillator Back-Up After an Event-Free First Battery Service-Life

Jan 11 • Artículos, Estimulación Cardíaca y Resincronización • 1074 Views • No Comments on Primary Prevention Implantable Cardioverter Defibrillator Recipients: The Need for Defibrillator Back-Up After an Event-Free First Battery Service-Life

Extraido de J. Cardiovasc Electrophysiol, Vol. 22, pp. 1346-1350, December 2011

GUIDO H. VAN WELSENES, M.S.,∗ JOHANNES B. VAN REES, M.D.,∗ JOEP THIJSSEN, M.D.,SERGE A. TRINES, M.D., Ph.D.,
LIESELOT VAN ERVEN, M.D., Ph.D.,MARTIN J. SCHALIJ, M.D., Ph.D., and C.J.W. BORLEFFS, M.D., Ph.D

From the Department of Cardiology, Leiden
University Medical Center, Leiden, the Netherlands

ICD Replacement After a Therapy-Free First
Service-Life.

Introduction: In primary prevention implantable
cardioverter defibrillator (ICD) patients, the relatively low incidence of
ventricular arrhythmias (VA) combined with the limited battery service-life
potentially results in a large group of patients who have had no benefit of the
ICD during first service-life. Data on the occurrence of VA after device
replacement remain scarce. The purpose of this study was to give clinicians
better insight in the dilemma whether or not to replace an ICD after an
event-free first battery service-life.

 Methods and Results: All patients treated with an ICD for
primary prevention who had a replacement because of battery depletion and who
did not receive appropriate therapy before device replacement were included in
this analysis. Of 154 primary prevention ICD patients needing replacement
because of battery depletion, 114 (74%) patients (mean age 61 ± 11 years, 80% male) had not received appropriate ICD therapy
for VA. Follow-up was 71 ± 24 months after the initial implantation
and 25 ± 21 months after device replacement.
Following replacement, 3-year cumulative incidence of appropriate therapy in
response to ventricular tachycardia or ventricular fibrillation was 14% (95% CI
5–22%).

 Conclusion: The majority of primary prevention ICD
patients do not experience VA during first battery service-life. However, a substantial
part of these patients does experience appropriate ICD therapy after replacement.

 Descargar articulo completo 

Related Posts

« »