Pacing failure caused by automatic pacing threshold adjustment system

Publication date: Available online 13 October 2017 Source:Journal of Arrhythmia Author(s): Jun Kishihara, Shinichi Niwano, Hidehira Fukaya, Ryo Nishinarita, Ai Horiguchi, Hironori Nakamura, Tazuru Igarashi, Naruya Ishizue, Tamami Fujiishi, Tomoharu Yoshizawa, Jun Oikawa, Akira Satoh, Masami Murakami, Junya Ako Ventricular capture management is an automatic pacing threshold adjustment algorithm that automatically measures pacing threshold through detection of the evoked response after a pacing stimulus. Although it is principally designed to save device battery under the maintenance of the patient׳s safety, we experienced a rare case with serious pacing failure due to a weakness of this algorithm. This pacing failure might be explained by a large variation in the ventricular pacing threshold depending on the atrioventricular interval and daily variation of pacing threshold and concomitant steroid use in this patient.

Source: Journal of Arrhythmia - October 14, 2017 Category: Cardiology Source Type: research