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November 1, 1992Pacing and Clinical Electrophysiology

Electrocardiographically Documented Unnecessary, Spontaneous Shocks in 241 Patients With Implantable Cardioverter Defibrillators

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Population

241 patients who underwent implantable cardioverter defibrillator implantation between March 1983 and…

Design

Cohort

Follow-up

24 ± 20 months

Authors

WGWolfram GrimmBFBelinda F. FloresFMFrancis E. Marchlinski

Discussion

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Overview

AF commonly triggers unnecessary ICD shocks; leaves open whether enhanced detection algorithms reduce events.

Structured PICO

P
Population
241 patients who underwent implantable cardioverter defibrillator (ICD) implantation between March 1983 and November 1991
I
Intervention
Implantable Cardioverter Defibrillator (ICD)
O
Outcome
Incidence and cause of electrocardiographically documented spontaneous ICD discharges for a rhythm other than ventricular tachycardia (VT) or fibrillation (VF) (unnecessary shocks)safety

Unnecessary ICD shocks are a frequent complication occurring in at least 22% of patients, primarily driven by atrial fibrillation, and can be better diagnosed with electrogram storage capabilities.

Cite This Study

Grimm et al. (1992) studied this question.

synapsesocial.com/papers/6a10fb3fcfa01e990d9ff30fhttps://doi.org/10.1111/j.1540-8159.1992.tb02953.x
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