Tachycardia detection in implantable antitachycardia devices.

Current approaches and future developments in automatic tachycardia detection and diagnosis.

Implantable automatic cardioverter/defibrillators are now commonly used to treat malignant ventricular arrhythmias.' Early models simply detected a rapid heart rate and delivered a defibrillation shock, but more modem devices can deliver treatment as a tiered strategy of antitachycardia pacing, synchronised low energy cardioversion, and high energy defibrillation.2' Accurate detection and diagn...

Implantable Cardioverter Defibrillator Shock Despite Termination of Ventricular Tachycardia by Antitachycardia Pacing During Charging

self-adapting autodecremental overdrive pacing

The efficacy and safety of a new antitachycardia pacing technique, self-adapting decremental overdrive pacing, was assessed in patients with clinical ventricular tachyarrhythmias who underwent programmed ventricular stimulation and serial drug testing. The three phases of this study involved a learning/experience phase, followed by intrapatient comparison of decremental overdrive pacing with co...

Reducing cardioverter-defibrillator shock administration by antitachycardia pacing during device charging.

Programming of antitachycardia pacing in implantable cardioverter-defibrillators (ICDs) has reduced inappropriate device shocks to terminate ventricular arrhythmia. This implies reductions in distress and pain for the patient and prolongs the useful life of the device. Arrhythmia detection and treatment with ICDs can be programmed according to the arrhythmia ventricular rate, discriminating bet...

Incidence and clinical relevance of slow ventricular tachycardia in implantable cardioverter-defibrillator recipients: an international multicenter prospective study.

BACKGROUND This study aims to assess the incidence and clinical relevance of slow ventricular tachycardia (VT) and the effectiveness and/or deleterious effects of antitachycardia pacing in slow VT in implantable cardioverter-defibrillator recipients. METHODS AND RESULTS This multicenter prospective randomized study included 374 patients (326 men) without prior history of slow VT (<148 bpm) im...