August 1, 1991Pacing and Clinical Electrophysiology
Paced Beats Following Single Nonsensed Complexes in a “Codependent” Cardioverter Defibrillator and Bradycardia Pacing System: Potential for Ventricular Tachycardia Induction
Population
37 patients with an implanted combined cardioverter defibrillator and bradycardia pacing system
Design
Case_series
Follow-up
short-term
Authors
Discussion
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Member takes
Implication
May induce VT via undersensing after premature beats in combined devices; hypothesis-generating for sensing algorithm validation.
Structured PICO
P
Population
37 patients with an implanted combined cardioverter defibrillator and bradycardia pacing system
I
Intervention
Combined cardioverter defibrillator and bradycardia pacing system with "codependent" algorithms for sensing bradycardia and tachycardia
O
Outcome
Ventricular tachycardia inductionsafety
Codependent bradycardia and antitachycardia devices may fail to sense low-amplitude signals after large-amplitude premature beats, potentially inducing ventricular tachycardia.
Cite This Study
Callans et al. (1991) studied this question.