Worsening Heart Failure due to AV Dissociation From Safety Mode in CRT ‐P: A Case Requiring Urgent Generator Replacement

Annals of Noninvasive Electrocardiology 2026 Open access

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Authors: Yuki Osada, Nobuhiko Ueda, T Nakamura, Kohei Ishibashi, Kengo Kusano
DOI: 10.1111/anec.70167
Cited by: 0

Abstract

Boston Scientific reported that dual chamber INGENIO family pacemakers or cardiac resynchronization therapy pacemakers (CRT-P) may initiate safety mode. Once Safety Mode is activated, telemetry with the programmer becomes unavailable. This case highlights worsening heart failure due to loss of atrioventricular synchronization associated with transition to Safety Mode and VVI pacing. Urgent admission for generator replacement was necessary because mode adjustment was not possible.

Fields of Study & Subjects

Cardiac pacing and defibrillation studies Cardiac electrophysiology and arrhythmias Cardiovascular Syncope and Autonomic Disorders

Publication details

Journal / source
Annals of Noninvasive Electrocardiology
Volume
31
Issue
2
Pages
e70167–e70167
Publication date
1 March 2026
Language
EN