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Circadian and seasonal variations of ventricular tachyarrhythmias in patients with early repolarization syndrome and Brugada syndrome: analysis of patients with implantable cardioverter defibrillatoranalysis of patients with implantable cardioverter defibrillator.

Authors
 SUNG-HWAN KIM  ;  GI-BYOUNG NAM  ;  SEUNGHEE BAEK  ;  HYUNG OH CHOI  ;  KI HUN KIM  ;  KEE-JOON CHOI  ;  BOYOUNG JOUNG  ;  HUI-NAM PAK  ;  MOON-HYOUNG LEE  ;  SUNG SOON KIM  ;  SEUNG-JUNG PARK  ;  YOUNG KEUN ON  ;  JUNE SOO KIM  ;  IL-YOUNG OH  ;  EUE KEUN CHOI  ;  SEIL OH  ;  YUN-SHIK CHOI  ;  JONG IL CHOI  ;  SANG WEON PARK  ;  YOUNG-HOON KIM  ;  MAN YOUNG LEE  ;  HONG EUY LIM  ;  YOUNG-SOO LEE  ;  YONGKEUN CHO  ;  JUN KIM  ;  DONG-IL LEE  ;  DAE KYOUNG CHO  ;  YOU-HO KIM 
Citation
 Journal of Cardiovascular Electrophysiology, Vol.23(7) : 757-763, 2012 
Journal Title
 Journal of Cardiovascular Electrophysiology 
ISSN
 1045-3873 
Issue Date
2012
MeSH
Adult ; Arrhythmias, Cardiac/diagnosis ; Arrhythmias, Cardiac/physiopathology ; Arrhythmias, Cardiac/therapy* ; Brugada Syndrome/diagnosis ; Brugada Syndrome/physiopathology ; Brugada Syndrome/therapy* ; Chi-Square Distribution ; Circadian Rhythm* ; Death, Sudden, Cardiac/prevention & control* ; Defibrillators, Implantable* ; Electric Countershock/adverse effects ; Electric Countershock/instrumentation* ; Electrocardiography ; Electrophysiologic Techniques, Cardiac ; Equipment Failure ; Female ; Humans ; Male ; Middle Aged ; Republic of Korea ; Retrospective Studies ; Seasons* ; Tachycardia, Ventricular/diagnosis ; Tachycardia, Ventricular/physiopathology ; Tachycardia, Ventricular/therapy* ; Time Factors ; Treatment Outcome ; Ventricular Fibrillation/diagnosis ; Ventricular Fibrillation/physiopathology ; Ventricular Fibrillation/therapy*
Keywords
Adult ; Arrhythmias, Cardiac/diagnosis ; Arrhythmias, Cardiac/physiopathology ; Arrhythmias, Cardiac/therapy* ; Brugada Syndrome/diagnosis ; Brugada Syndrome/physiopathology ; Brugada Syndrome/therapy* ; Chi-Square Distribution ; Circadian Rhythm* ; Death, Sudden, Cardiac/prevention & control* ; Defibrillators, Implantable* ; Electric Countershock/adverse effects ; Electric Countershock/instrumentation* ; Electrocardiography ; Electrophysiologic Techniques, Cardiac ; Equipment Failure ; Female ; Humans ; Male ; Middle Aged ; Republic of Korea ; Retrospective Studies ; Seasons* ; Tachycardia, Ventricular/diagnosis ; Tachycardia, Ventricular/physiopathology ; Tachycardia, Ventricular/therapy* ; Time Factors ; Treatment Outcome ; Ventricular Fibrillation/diagnosis ; Ventricular Fibrillation/physiopathology ; Ventricular Fibrillation/therapy*
Abstract
INTRODUCTION: The circadian and seasonal patterns of ventricular tachyarrhythmia (VTA) in patients with early repolarization syndrome (ERS) have not been determined. We compared the timing of VTAs in patients with ERS and Brugada syndrome (BS). METHODS AND RESULTS: We enrolled patients with ERS (n = 14) and BS (n = 53) who underwent implantable cardioverter defibrillator (ICD) implantation. The timing of VTAs, including cardiac arrest and appropriate shocks, was determined. During follow up of 6.4 ± 3.6 years in the ERS group and 5.0 ± 3.3 years in the BS group, 5 of 14 (36%) ERS and 10 of 53 (19%) BS patients experienced appropriate shocks (P = 0.37). Cardiac arrest showed a trend of nocturnal distribution peaking from midnight to early morning (P = 0.14 in ERS, P = 0.16 in BS). Circadian distribution of appropriate shocks showed a significant nocturnal peak in patients with ERS (P < 0.0001) but a trend toward a nocturnal peak in patients with BS (P = 0.08). There were no seasonal differences in cardiac arrest in patients with ERS and BS. However, patients with ERS showed a seasonal peak in appropriate shocks from spring to summer (P < 0.0001). There was no significant seasonal peak in patients with BS. The timing of VTAs (cardiac arrest plus appropriate shock) showed significant nocturnal distributions in patients with ERS and BS (P < 0.01, respectively). A significant clustering of VTAs was noted from spring to summer (P < 0.01) in patients with ERS, but not in patients with BS (P = 0.42). CONCLUSIONS: Incidence of VTAs showed marked circadian variations with night-time peaks in patients with ERS and BS.
Full Text
http://onlinelibrary.wiley.com/doi/10.1111/j.1540-8167.2011.02287.x/abstract
DOI
22353358
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Sung Soon(김성순)
Pak, Hui Nam(박희남) ORCID logo https://orcid.org/0000-0002-3256-3620
Lee, Moon Hyoung(이문형) ORCID logo https://orcid.org/0000-0002-7268-0741
Joung, Bo Young(정보영) ORCID logo https://orcid.org/0000-0001-9036-7225
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/90652
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