Oral airway resistance during wakefulness in eucapnic and hypercapnic sleep apnea syndrome.

@article{Lin2004OralAR,
  title={Oral airway resistance during wakefulness in eucapnic and hypercapnic sleep apnea syndrome.},
  author={Ching-Chi Lin and Kun-Ming Wu and Chon-Shin Chou and Shwu-Fang Liaw},
  journal={Respiratory physiology & neurobiology},
  year={2004},
  volume={139 2},
  pages={215-24}
}
The purpose of this study was to evaluate whether there was an abnormal increase of upper airway resistance in the sitting and supine positions in hypercapnic obstructive sleep apnea syndrome (OSAS) patients compared with eucapnic OSAS or normal controls as measured by impulse oscillometry (IOS) while awake. Twenty subjects without OSAS served as controls (group I), and 20 patients with moderate or severe eucapnic OSAS (group II) and another eight hypercapnic severe OSAS patients (group III… CONTINUE READING