Seasonal, weekly, and circadian distribution of ventricular fibrillation in patients with J-wave syndrome from the J-PREVENT registry

Shingo Maeda, MD; Yoshihide Takahashi, MD; Akihiko Nogami, MD; Yasuteru Yamauchi, MD; Yuki Osaka, MD; Yasuhiro Shirai, MD; Kensuke Ihara, MD; Yasuhiro Yokoyama, MD; Makoto Suzuki, MD; Kaoru Okishige, MD; Mitsuhiro Nishizaki, MD; Kenzo Hirao, MD

doi:10.1016/j.joa.2015.01.004

Journal of Arrhythmia (Oct 2015)

Seasonal, weekly, and circadian distribution of ventricular fibrillation in patients with J-wave syndrome from the J-PREVENT registry

Shingo Maeda, MD,
Yoshihide Takahashi, MD,
Akihiko Nogami, MD,
Yasuteru Yamauchi, MD,
Yuki Osaka, MD,
Yasuhiro Shirai, MD,
Kensuke Ihara, MD,
Yasuhiro Yokoyama, MD,
Makoto Suzuki, MD,
Kaoru Okishige, MD,
Mitsuhiro Nishizaki, MD,
Kenzo Hirao, MD

Affiliations

Shingo Maeda, MD: Heart Rhythm Center, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
Yoshihide Takahashi, MD: Department of Cardiology, National Disaster Medical Center, Tokyo, Japan
Akihiko Nogami, MD: Department of Heart Rhythm Management, Yokohama Rosai Hospital, Yokohama, Japan
Yasuteru Yamauchi, MD: Department of Cardiology, Musashino Red Cross Hospital, Tokyo, Japan
Yuki Osaka, MD: Department of Cardiology, Yokosuka Kyosai Hospital, Yokosuka, Japan
Yasuhiro Shirai, MD: Heart Rhythm Center, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
Kensuke Ihara, MD: Heart Rhythm Center, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
Yasuhiro Yokoyama, MD: Heart Rhythm Center, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
Makoto Suzuki, MD: Department of Cardiovascular Medicine, Kameda General Hospital, Kamogawa, Japan
Kaoru Okishige, MD: Heart Center, Yokohama City Bay Red Cross Hospital, Yokohama, Japan
Mitsuhiro Nishizaki, MD: Department of Cardiology, Yokohama Minami Kyosai Hospital, Yokohama, Japan
Kenzo Hirao, MD: Heart Rhythm Center, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan

DOI: https://doi.org/10.1016/j.joa.2015.01.004
Journal volume & issue: Vol. 31, no. 5
pp. 268 – 273

Abstract

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Background: Ventricular fibrillation (VF) in Brugada syndrome (BrS) is known to occur more frequently during nighttime and from spring to early summer. In this study, we investigated whether early repolarization syndrome (ERS) has the same seasonal, weekly, and circadian distribution of VF events as BrS using data from the “J-wave associated with prior cardiac event” (J-PREVENT) registry. Methods: The study included 90 consecutive patients with BrS and 31 patients with ERS during a mean follow-up of 49±37 months. Follow-up data from implantable cardioverter-defibrillators were evaluated in all cases. Results: In patients with ERS, the circadian distribution of VF episodes differed among the four 6-h periods, with a significant peak from midnight to 6:00 am (p<0.01) similar to that observed in BrS patients. However, VF occurred more frequently on weekends in patients with ERS, whereas on weekdays in patients with BrS (p<0.01). The months of peak VF occurrence also differed between the groups, with the frequency of VF episodes at peak between December and March in ERS patients and between March and June in BrS patients. In ERS patients, VF events had an inverse correlation with air temperature (r=−0.726, p<0.01). Conclusions: ERS and BrS patients show similar nighttime increases in the occurrence of VF, but different seasonal and weekly distributions, suggesting a pathophysiological difference between the two syndromes.

Published in Journal of Arrhythmia

ISSN: 1880-4276 (Print); 1883-2148 (Online)
Publisher: Wiley
Country of publisher: Australia
LCC subjects: Medicine: Internal medicine: Specialties of internal medicine: Diseases of the circulatory (Cardiovascular) system
Website: https://onlinelibrary.wiley.com/journal/18832148

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