Decay-Delay Technology for Management of Defibrillator T-wave Oversensing

Abstract

Appropriate sensing is indispensable for appropriate functioning of implantable cardioverter-defibrillator (ICD). Oversensing is a major clinical dilemma in patients with ICD leading to inappropriate ventricular arrhythmia detection and therapy. T-wave oversensing is an important clinical problem leading to QRS double counting with inappropriate therapy, in particular. We present a patient with dilated cardiomyopathy and intermittent T wave oversensing by an ICD which could be resolved by device reprogramming.