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- Title
Long-Term Prognosis of Patients with an Implantable Cardioverter-Defibrillator in Korea.
- Authors
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
- Abstract
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.
- Subjects
IMPLANTABLE cardioverter-defibrillators; HEART failure; CARDIAC arrest; DEFIBRILLATORS; IMPLANTED cardiovascular instruments
- Publication
Yonsei Medical Journal, 2017, Vol 58, Issue 3, p514
- ISSN
0513-5796
- Publication type
Article
- DOI
10.3349/ymj.2017.58.3.514