Permanent damage to implantable cardioverter-defibrillators during left-sided septal ventricular tachycardia ablation using a lattice-tip catheter: A case series

Heart Rhythm 2026 Open access

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Authors: Celina V. Malyar, Boldizsar Kovacs, Bakhtawar K. Mahmoodi, Andreas Haeberlin, Tobias Reichlin, Sing‐Chien Yap
DOI: 10.1016/j.hrthm.2026.01.028
Cited by: 11
References: 13

Abstract

A novel dual-energy lattice-tip catheter (Sphere-9, AFFERA, Medtronic) has shown promising results for the treatment of refractory ventricular arrhythmias. The multicenter AFFERA Ventricular Arrhythmia Ablation (AVAAR) registry demonstrated the feasibility and safety of ventricular tachycardia (VT) ablation using the lattice-tip catheter.1 However, there is limited data on the safety of the AFFERA system in patients with cardiac implantable electronic devices (CIED). There is emerging data that both radiofrequency ablation (RFA) and pulsed field ablation (PFA) delivered with the lattice-tip catheter may cause inadvertent effects during VT ablation.

Fields of Study & Subjects

Cardiac Arrhythmias and Treatments Atrial Fibrillation Management and Outcomes Cardiac pacing and defibrillation studies

Publication details

Journal / source
Heart Rhythm
Publisher
Elsevier BV
Volume
23
Issue
5
Pages
1035–1039
Publication date
24 January 2026
Language
EN