Utility of transtelephonic ECG monitoring in evaluating discharges from a third-generation implantable cardioverter defibrillator

Abstract

The authors report the case of a 60-year-old man with a third-generation implantable cardioverter defibrillator whose rate-sensing lead malfunction was diagnosed only after surface loop electrocardiographic (ECG) monitor recording. The stored R-R intervals suggested an irregular ventricular rhythm, but the loop ECG monitor demonstrated inappropriate shocks delivered during sinus rhythm.