Association of central sleep apnea and nocturnal CO2 exhalation volume under oxygen inhalation in patients with chronic heart failure

Autor:	Sugimura Hiroyuki, Harasawa Hiroshi, Suzuki Hidehiko, Kaneko Noboru, Kawasaki Ryuichi, Oda Kazuhiko, Nakamoto Takaaki, Toyoda Shigeru, Arikawa Takuo, Hoshi Toshiyasu
Rok vydání:	2004
Předmět:	Ejection fraction Central sleep apnea Inhalation business.industry Sleep apnea Exhalation medicine.disease Anesthesia Heart failure Respiration medicine Room air distribution Cardiology and Cardiovascular Medicine business
Zdroj:	Journal of Cardiac Failure. 10:S188
ISSN:	1071-9164
DOI:	10.1016/j.cardfail.2004.08.133
Popis:	We investigated impacts of O2 on sleep apnea and nocturnal CO2 exhalation volume in stable/severe CHF.Subjects were 7 patients with stable CHF (LVEF = 23.2 ± 7.6%, NYHA class = III). Nocturnal SaO2 and sleep data were analyzed using PSG, with single breath CO2 exhalation volume(SBCO2) using a monitoring device.1. All of the patients had central sleep apnea (CSA). 2. SaO24%ODI decreased with O2 inhalation (7.9 ± 3.8 vs. 0.6 ± 0.5 times/hour, p < 0.01). 3. AHI was reduced with O2 (19.7 ± 2.3 vs. 2.4 ± ;3.6 times/hour, p < 0.01). 4. SBCO2 during sleep were: in room air, 44.0 ± 4.8ml during regular respiration and 119 ± 9.8ml at onset of CSA; in O2, 90.8 ± 4.0ml during regular respiration. An increased level of the SBCO2 was attained with O2.In CHF with CSA, a low level of SBCO2 was observed. It was suggested that O2 improved this low value and suppressed CSA.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c260b3f6543ffd0311d06217b9b220cd https://doi.org/10.1016/j.cardfail.2004.08.133 Zobrazit plný text záznamu Full Text from ScienceDirect