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Intrinsic antitachycardia pacing (iATP) is a novel, automated antitachycardia pacing (ATP) algorithm that provides individualized therapy to terminate ventricular tachycardia (VT). If the first ATP attempt is unsuccessful, the algorithm analyzes the tachycardia cycle length and the postpacing interval and adjusts the subsequent sequence to successfully terminate VT. This algorithm was effective in a single clinical study without a comparator arm. However, iATP failure has not been well-documented in the literature. This publication represents the first case series with episode analysis of iATP failure, including a demonstration of its proarrhythmic effect. Copyright © 2023 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.


Anvi Raina, Martin van Zyl, Mark Henrich, Abhishek J Deshmukh, Gurukripa N Kowlgi. Failure of Intrinsic Antitachycardia Pacing to Terminate Ventricular Tachycardia and Potential Proarrhythmic Effects. JACC. Clinical electrophysiology. 2023 May;9(5):697-700

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PMID: 37204352

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