Inappropriate shocks from implanted cardioverter defibrillators caused by sensing of diaphragmatic myopotentials

Citation
Rw. Peters et al., Inappropriate shocks from implanted cardioverter defibrillators caused by sensing of diaphragmatic myopotentials, J INTERV C, 2(4), 1998, pp. 367-370
Citations number
7
Categorie Soggetti
Cardiovascular & Respiratory Systems
Journal title
JOURNAL OF INTERVENTIONAL CARDIAC ELECTROPHYSIOLOGY
ISSN journal
1383875X → ACNP
Volume
2
Issue
4
Year of publication
1998
Pages
367 - 370
Database
ISI
SICI code
1383-875X(199812)2:4<367:ISFICD>2.0.ZU;2-0
Abstract
Inappropriate shocks remain one of the major problems associated with the u se of implantable cardioverter defibrillators (ICD). We describe 3 patients who had inappropriate shocks due to oversensing of diaphragmatic myopotent ials. In all 3, oversensing could be demonstrated during deep inspiration o r Valsalva maneuver. The problem was remedied in one by insertion of a sepa rate rate sensing lead in the right ventricular outflow tract, in the secon d by decreasing the rate of antibradycardia pacing of the ICD, and in the t hird by decreasing the sensitivity of the ICD. We conclude that the possibi lity of sensed diaphragmatic myopotentials should be considered at the time of ICD implant so that appropriate preventive measures can be taken.