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Effects of continuous positive airway pressure therapy on left ventricular diastolic function: a randomised, sham-controlled clinical trial

Authors
 Chi Young Shim  ;  Darae Kim  ;  Sungha Park  ;  Chan Joo Lee  ;  Hyung-Ju Cho  ;  Jong-Won Ha  ;  Yang-Je Cho  ;  Geu-Ru Hong 
Citation
 EUROPEAN RESPIRATORY JOURNAL, Vol.51(2) : 1701774, 2018 
Journal Title
 EUROPEAN RESPIRATORY JOURNAL 
ISSN
 0903-1936 
Issue Date
2018
Abstract
Continuous positive airway pressure (CPAP) therapy may decrease left ventricular (LV) loads and improve myocardial oxygenation. In this study, we investigated the effect of CPAP on LV diastolic function compared with sham treatment in patients with severe obstructive sleep apnoea (OSA).This 3-month prospective single-centre randomised sham-controlled trial analysed 52 patients with severe OSA. Patients were randomly assigned (1:1) to receive either CPAP or sham treatment for 3 months. The main investigator and patients were masked to the trial randomisation. The primary end-point was change of early diastolic mitral annular (e') velocity over the 3-month period. Secondary end-points were pulse wave velocity (PWV), 24-h ambulatory blood pressure (BP) and variables of ventricular-vascular coupling at 3 months.After 3 months of follow-up, CPAP treatment significantly increased the e' velocity, and was greater than the sham treatment (0.65+/-1.70 versus -0.61+/-1.85 cm.s(-1), p=0.014). The PWV, 24-h mean diastolic BP, night-time diastolic BP, arterial elastance index and ventricular-vascular coupling index after 3 months of follow-up decreased significantly in the CPAP group.In patients with severe OSA, CPAP treatment for 3 months improved LV diastolic function more than sham treatment, and was accompanied by improvements in arterial stiffness and ventricular-vascular coupling.
Full Text
http://erj.ersjournals.com/content/51/2/1701774
DOI
10.1183/13993003.01774-2017
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Neurology (신경과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Otorhinolaryngology (이비인후과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Da Rae(김다래)
Park, Sung Ha(박성하) ORCID logo https://orcid.org/0000-0001-5362-478X
Shim, Chi Young(심지영) ORCID logo https://orcid.org/0000-0002-6136-0136
Cho, Yang Je(조양제)
Cho, Hyung Ju(조형주) ORCID logo https://orcid.org/0000-0002-2851-3225
Ha, Jong Won(하종원) ORCID logo https://orcid.org/0000-0002-8260-2958
Hong, Geu Ru(홍그루) ORCID logo https://orcid.org/0000-0003-4981-3304
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/162038
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