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

AbstractAn 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.

Source: Pacing and Clinical Electrophysiology : PACE - May 24, 2023 Category: Cardiology Authors: Yasunobu Yamagishi, Yasushi Oginosawa, Nozomu Ishii, Yuki Nakamura, Keishiro Yagyu, Taro Miyamoto, Hisaharu Ohe, Ritsuko Kohno, Masaharu Kataoka, Haruhiko Abe Tags: CASE REPORT Source Type: research