Alert tone perceptibility and MRI-associated dysfunction in S-ICDs: A prospective multicenter study

Heart Rhythm 2026 Open access

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Authors: Jonas Wörmann, Clarissa Hausmann, Yuri Bocchini, Thomas Fink, Stjepan Jurisic, Alexander Breitenstein, Philipp Sommer, Vanessa Sciacca, Sebastian Dittrich, Henning Guthoff, Oliver Wilson, Jan Grobecker
+7 more Theodoros Maximidou, Jana Ackmann, Friederike Pavel, Jan‐Hendrik van den Bruck, Jan-Hendrik Schipper, Daniel Steven, J Luker
DOI: 10.1016/j.hrthm.2026.04.040
Cited by: 1
References: 4

Abstract

The subcutaneous implantable cardioverter-defibrillator (S-ICD) uses an audible alert tone (AT) to notify patients of device abnormalities such as battery depletion or oversensing issues.1 Effective patient notification requires both reliable tone generation and the patient’s ability to perceive the alert.2–4 However, data on AT perceptibility in recipients of S-ICD remain limited. In addition, manufacturer safety communications have reported potential loss of AT volume after magnetic resonance imaging (MRI).

Fields of Study & Subjects

Neurological disorders and treatments Advanced MRI Techniques and Applications Epilepsy research and treatment

Publication details

Journal / source
Heart Rhythm
Publisher
Elsevier BV
Publication date
1 April 2026
Language
EN