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Clinical Features of Obstructive Sleep Apnea That Determine Its High Prevalence in Resistant Hypertension

Authors
 Hyun Jin Min ; Yang-Je Cho ; Hyung-Ju Cho ; Sungha Park ; Jeung-Gweon Lee ; Ji In Choi ; Ha Yan Kim ; Da Hee Kim ; Chang-Hoon Kim 
Citation
 Yonsei Medical Journal, Vol.56(5) : 1258~1265, 2015 
Journal Title
 Yonsei Medical Journal 
ISSN
 0513-5796 
Issue Date
2015
Abstract
PURPOSE: Resistant hypertension (HTN) occurs in 15-20% of treated hypertensive patients, and 70-80% of resistant hypertensive patients have obstructive sleep apnea (OSA). The characteristics of resistant HTN that predispose patients to OSA have not been reported. Therefore, we aimed to determine the clinical, laboratory, and polysomnographic features of resistant HTN that are significantly associated with OSA. MATERIALS AND METHODS: Hypertensive patients (n=475) who underwent portable polysomnography were enrolled. The patients were categorized into controlled (n=410) and resistant HTN (n=65) groups. The risk factors for the occurrence of OSA in controlled and resistant hypertensive patients were compared, and independent risk factors that are associated with OSA were analyzed. RESULTS: Out of 475 patients, 359 (75.6%) were diagnosed with OSA. The prevalence of OSA in resistant HTN was 87.7%, which was significantly higher than that in controlled HTN (73.7%). Age, body mass index, neck circumference, waist circumference, and hip circumference were significantly higher in OSA. However, stepwise multivariate analyses revealed that resistant HTN was not an independent risk factor of OSA. CONCLUSION: The higher prevalence and severity of OSA in resistant HTN may be due to the association of risk factors that are common to both conditions.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/140846
DOI
10.3349/ymj.2015.56.5.1258
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Otorhinolaryngology
1. 연구논문 > 1. College of Medicine > Yonsei Biomedical Research Center
1. 연구논문 > 1. College of Medicine > Dept. of Neurology
1. 연구논문 > 1. College of Medicine > Dept. of Internal Medicine
Yonsei Authors
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