Prognostic impact of newly detected atrial fibrillation in patients with hypertrophic cardiomyopathy following cardiac i
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ORIGINAL ARTICLE
Prognostic impact of newly detected atrial fibrillation in patients with hypertrophic cardiomyopathy following cardiac implantable electronic device implantation Hiroshi Hayashi1 · Yu‑ki Iwasaki1 · Toshiki Arai1 · Rei Mimuro1 · Masato Hachisuka1 · Yujin Maru1 · Yuhi Fujimoto1 · Eiichiro Oka1 · Kanako Hagiwara1 · Yoichi Imori1 · Teppei Yamamoto1 · Hiroshige Murata1 · Kenji Yodogawa1 · Hitoshi Takano1 · Wataru Shimizu1 Received: 1 June 2020 / Accepted: 6 November 2020 © Springer Japan KK, part of Springer Nature 2020
Abstract Atrial fibrillation (AF) is the most common arrhythmia in patients with hypertrophic cardiomyopathy (HCM). The present study aimed to investigate the incidence and prognostic impact of newly detected AF after cardiac implantable electronic device (CIED) implantation with HCM patients. Fifty-six patients (33 men, age 57 ± 17 years) with HCM who underwent CIED implantations with no previous history of AF at the time of implantation (ICD n = 46, Pacemaker n = 10) were retrospectively enrolled. During 5.7 ± 3.6 years of follow-up, AF was newly detected in 20 (36%) of 56 patients after the CIED implantation (AF group) and the rest of the patients had no newly detected AF (non-AF group). The presence of mitral regurgitation (HR 8.49; 95% CI 2.29–30.6 P
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