RT Journal Article
SR Electronic
T1 Inappropriate shocks delivered by implantable cardiac defibrillators during oversensing of activity of diaphagmatic muscle
JF Heart
JO Heart
FD BMJ Publishing Group Ltd and British Cardiovascular Society
SP 94
OP 96
DO 10.1136/hrt.81.1.94
VO 81
IS 1
A1 D Babuty
A1 L Fauchier
A1 P Cosnay
YR 1999
UL http://heart.bmj.com/content/81/1/94.abstract
AB 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.