The effect of posture on airway caliber with the sleep-apnea/hypopnea syndrome.

摘要: Snoring and sleep apnea are more common in the supine than seated position. We therefore studied effect of posture on upper-airway caliber normal subjects, snorers, subjects with sleep-apnea/hypopnea syndrome (SAHS). measured cross-sectional area by acoustic reflection 110 SAHS patients (apnea/hypopnea index [AHI] > 15), 70 snorers without (AHI < 40 male controls matched for body-mass (BMI) to patients. position had smaller areas at orophyngeal junction (OPJ) either (p 0.01) or 0.02), but there were no differences between groups airway lateral recumbent positions. significantly decreases OPJ from 0.001) positions did snorers. also 0.05) upon lying down BMI-matched subjects. These data compatible defending their upper do