Citation

Babuty D, Fauchier L, Cosnay P. Heart 1999; 81(1): 94-96.

Affiliation

Cardiology B Department, Hospital Trousseau, 37044 Tours, France.

Copyright

(Copyright © 1999, BMJ Publishing Group)

DOI

unavailable

PMID

10220554

PMCID

PMC1728919

Abstract

Two cases are reported (both men, one 72 and one 54 years old) of inappropriate shocks delivered by an implantable cardiac defibrillator (ICD) device, which oversensed the myopotentials induced by deep breathing and Valsalva manoeuvre. No damage to leads was associated with the oversensing of myopotentials. The mechanism of the inappropriate shocks was determined using real time electrograms. Modification of the duration of ventricular detection and decrease in sensitivity made it possible to avoid the oversensing of myopotentials and to deliver ICD treatment.

Language: en