Inappropriate shock: a failure of SVT discriminators in a dual chamber ICD?
Inappropriate shock remains a major issue in patients with implantable cardioverter defibrillators. We examine an inappropriate shock delivered in a patient with atrial tachycardia that conducted 1:1. We reconstruct the device algorithms that led to therapy delivery and discuss programming changes that could be considered.
Al-Ahmad
Amin
A
Cardiac Arrhythmia Service, Stanford University School of Medicine, Stanford, California 94305, USA. aalahmad@cvmed.stanford.edu
Tsiperfal
Angela
A
Hsia
Henry H
HH
Wang
Paul J
PJ
D000368:Aged; D017147:Defibrillators, Implantable / Q000009:adverse effects*; D016002:Discriminant Analysis; D004554:Electric Countershock / Q000009:adverse effects*; D004868:Equipment Failure; D019544:Equipment Failure Analysis; D006801:Humans; D008297:Male; D013612:Tachycardia, Ectopic Atrial / Q000209:etiology* / Q000517:prevention & control*; D013813:Therapy, Computer-Assisted / Q000295:instrumentation* / Q000379:methods*