title: Pulmonary hypertension in patients with severe obstructive sleep apnea.
abstract: Thirty-seven patients (35 men and two women) with obstructive sleep apnea-hypopnea syndrome (OSAHS) without any known cardiovascular and lung diseases were examined by Doppler echocardiography. Eight of the 37 (21.6%) patients experienced daytime pulmonary hypertension (PH), and all of them had severe OSAHS with an apnea-hypopnea index of > 30. The study suggested that one-third of patients with severe OSAHS had daytime PH.
authors.affiliation: Sleep Disorders Center, Department of Medicine, Aichi Medical University School of Medicine, Japan. sas@amugw.aichi-med-u.ac.jp
authors.forename: Hiroki
authors.initials: H
authors.lastname: Yamakawa
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Shiomi
authors.forename: Ryuujirou
authors.initials: R
authors.lastname: Sasanabe
authors.forename: Rika
authors.initials: R
authors.lastname: Hasegawa
authors.forename: Kazuo
authors.initials: K
authors.lastname: Ootake
authors.forename: Katsuhisa
authors.initials: K
authors.lastname: Banno
authors.forename: Hideo
authors.initials: H
authors.lastname: Wakayama
authors.forename: Masako
authors.initials: M
authors.lastname: Katada
authors.forename: Tadashi
authors.initials: T
authors.lastname: Kobayashi
mesh_terms: D004452:Echocardiography; D005260:Female; D006801:Humans; D006976:Hypertension, Pulmonary / Q000150:complications / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D020181:Sleep Apnea, Obstructive / Q000150:complications*