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Long-Term Prognosis of Patients with an Implantable Cardioverter-Defibrillator in Korea

 Jae-Sun Uhm  ;  Tae-Hoon Kim  ;  In-Cheol Kim  ;  Young-Ah Park  ;  Dong Geum Shin  ;  Yeong-Min Lim  ;  Hee-Tae Yu  ;  Pil-Sung Yang  ;  Hui-Nam Pak  ;  Seok-Min Kang  ;  Moon-Hyoung Lee  ;  Boyoung Joung 
 YONSEI MEDICAL JOURNAL, Vol.58(3) : 514-520, 2017 
Journal Title
Issue Date
Adult ; Female ; Hamstring Muscles/physiopathology* ; Healthy Volunteers ; High-Energy Shock Waves/therapeutic use* ; Humans ; Leg ; Male ; Muscle Spasticity/etiology ; Muscle Spasticity/therapy* ; Muscle, Skeletal* ; Outcome Assessment (Health Care) ; Pilot Projects
ESWT ; hamstring tightness ; spasticity ; stretching
PURPOSE: The objective of this study was to elucidate the long-term prognosis of patients with implantable cardioverter-defibrillators (ICDs) in Korea.

MATERIALS AND METHODS: We enrolled 405 patients (age, 57.7±16.7 years; 311 men) who had undergone ICD implantation. The patients were divided into three groups: heart failure (HF) and ICD for primary (group 1, n=118) and secondary prevention (group 2, n=93) and non-HF (group 3, n=194). We compared appropriate and inappropriate ICD therapy delivery among the groups and between high- (heart rate ≥200 /min) and low-rate (<200 /min) ICD therapy zones.

RESULTS: During the follow-up period (58.9±49.8 months), the annual appropriate ICD therapy rate was higher in group 2 (10.4%) than in groups 1 and 3 (6.1% and 5.9%, respectively, p<0.001). There were no significant differences in annual inappropriate ICD therapy rate among the three groups. In group 1, the annual appropriate ICD therapy rate was significantly lower in patients with a high-rate versus a low-rate therapy zone (4.5% and 9.6%, respectively, p=0.026). In group 3, the annual inappropriate ICD therapy rate was significantly lower in patients with a high-rate versus a low-rate therapy zone (3.1% and 4.0%, respectively, p=0.048).

CONCLUSION: Appropriate ICD therapy rates are not low in Korean patients with ICD, relative to prior large-scale studies in Western countries. Appropriate and inappropriate ICD therapy could be reduced by a high-rate therapy zone in patients with HF and ICD for primary prevention, as well as non-HF patients, respectively.
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kang, Seok Min(강석민) ORCID logo https://orcid.org/0000-0001-9856-9227
Kim, In Cheol(김인철)
Kim, Tae-Hoon(김태훈) ORCID logo https://orcid.org/0000-0003-4200-3456
Park, Young Ah(박영아)
Pak, Hui Nam(박희남) ORCID logo https://orcid.org/0000-0002-3256-3620
Shin, Dong Geum(신동금)
Yang, Pil Sung(양필성)
Uhm, Jae Sun(엄재선) ORCID logo https://orcid.org/0000-0002-1611-8172
Yu, Hee Tae(유희태) ORCID logo https://orcid.org/0000-0002-6835-4759
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
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