Unusual atrial pacing induced by type II far-field p-wave sensing in a patient with complete atrioventricular block

Yasunobu Yamagishi; Yasushi Oginosawa; Nozomu Ishii; Yuki Nakamura; Keishiro Yagyu; Taro Miyamoto; Hisaharu Ohe; Ritsuko Kohno; Masaharu Kataoka; Haruhiko Abe

doi:10.1111/pace.14743

Unusual atrial pacing induced by type II far-field p-wave sensing in a patient with complete atrioventricular block

Pacing Clin Electrophysiol. 2024 Mar;47(3):433-436. doi: 10.1111/pace.14743. Epub 2023 May 24.

Affiliations

¹ The Second Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.
² Department of Heart Rhythm Management, University of Occupational and Environmental Health, Kitakyushu, Japan.

PMID: 37221929
DOI: 10.1111/pace.14743

Abstract

An 88-year-old Japanese woman underwent DDD pacemaker (MicroPort KORA 250 DR, V lead: VEGA R52) implantation for complete atrioventricular block. A 12-lead electrocardiogram for a routine examination showed atrial pacing within the intrinsic P wave, followed by inhibition of ventricular pacing. Pacemaker interrogation revealed no abnormalities in the basic parameters; however, ventricular pacing was inhibited by far-field sensing of intrinsic atrial waves before atrial events; type II far-field P-wave sensing. As a result, unusual atrial pacing occurred due to the pause suppression algorithm, which is the one of the functions that prevent atrial fibrillation development.

Keywords: complete atrioventricular block; crosstalk; far-field P-wave (FFPW) sensing; pause suppression; type II far-field.

Publication types

Case Reports

MeSH terms

Aged, 80 and over
Atrioventricular Block* / diagnosis
Atrioventricular Block* / therapy
Cardiac Pacing, Artificial
Female
Heart Atria
Heart Ventricles
Humans
Pacemaker, Artificial*