title: [A case of obstructive sleep apnea syndrome with increased lung water during sleep].
abstract: A 22-year-old man was admitted to the department of plastic surgery in our university with diagnosis of ankylosis and microgeniea. His complaints were snoring and somnolence in the daytime, so we performed a Respigraph (Chest) that showed obstructive apnea during sleep. We diagnosed obstructive sleep apnea syndrome. So we observed pulmonary circulation and measured lung water using the double indicator dilution method (Nihon Koden, MTV-1100) during sleep. During the period of apnea, arterial oxygen pressure and mixed venous saturation decreased, reversely, mean pulmonary arterial pressure rose, lung water (ETV) and central blood volume increased. We considered that the increase of lung water during sleep apnea is caused by hemodynamic change due to hypoxia and increase of venous return. After operation, the value of blood gas assay and apnea index were improved.
authors.affiliation: Department of 2nd Internal Medicine, Nagasaki University.
authors.forename: S
authors.initials: S
authors.lastname: Ikeda
authors.forename: T
authors.initials: T
authors.lastname: Imamura
authors.forename: T
authors.initials: T
authors.lastname: Sawai
authors.forename: T
authors.initials: T
authors.lastname: Naitoh
authors.forename: M
authors.initials: M
authors.lastname: Ohta
authors.forename: S
authors.initials: S
authors.lastname: Hata
authors.forename: S
authors.initials: S
authors.lastname: Hamabe
authors.forename: Y
authors.initials: Y
authors.lastname: Miyahara
authors.forename: T
authors.initials: T
authors.lastname: Yamasa
authors.forename: K
authors.initials: K
authors.lastname: Hara
mesh_terms: D000328:Adult; D015633:Extravascular Lung Water / Q000378:metabolism*; D006801:Humans; D008297:Male; D011652:Pulmonary Circulation; D012890:Sleep; D012891:Sleep Apnea Syndromes / Q000378:metabolism* / Q000503:physiopathology