Awake Measures of Nasal Resistance and Upper Airway Resistance on CPAP during Sleep
نویسندگان
چکیده
منابع مشابه
Effect of nasal or oral breathing route on upper airway resistance during sleep.
Healthy subjects with normal nasal resistance breathe almost exclusively through the nose during sleep. This study tested the hypothesis that a mechanical advantage might explain this preponderance of nasal over oral breathing during sleep. A randomised, single-blind, crossover design was used to compare upper airway resistance during sleep in the nasal and oral breathing conditions in 12 (seve...
متن کاملUpper airway muscle activity and upper airway resistance in young adults during sleep.
To determine the relationship between upper airway muscle activity and upper airway resistance in nonsnoring and snoring young adults, 17 subjects were studied during sleep. Genioglossus and alae nasi electromyogram activity were recorded. Inspiratory and expiratory supraglottic resistance (Rinsp and Rexp, respectively) were measured at peak flow, and the coefficients of resistance (Kinsp and K...
متن کاملGender differences in airway resistance during sleep.
At the onset of non-rapid-eye-movement (NREM) sleep there is a fall in ventilation and an increase in upper airway resistance (UAR). In healthy men there is a progressive increase in UAR as NREM sleep deepens. This study compared the pattern of change in UAR and ventilation in 14 men and 14 women (aged 18-25 yr) both during sleep onset and over the NREM phase of a sleep cycle (from wakefulness ...
متن کاملEffects of topical anesthesia on upper airway resistance during wake-sleep transitions.
Deformation of the upper airway (UA) by negative transmural pressure alters the activity of UA mechanoreceptors, causing a reflex increase in UA muscle activity. Topical anesthesia of the UA mucosa, which greatly reduces this reflex response, causes an increase in UA resistance during stage 2 sleep. We hypothesized that topical anesthesia of the UA mucosa would predispose to UA instability at s...
متن کاملUpper-airway resistance syndrome.
Upper-airway resistance syndrome (UARS) was first recognized in children in 1982 (Guilleminault et al., 1982). The term UARS, however, was not used until adult cases were reported in 1993 (Guilleminault et al., 1993). The description of UARS brought the attention of clinicians to a group of patients that was left undiagnosed and untreated despite severe impairment. The authors indicated that th...
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ژورنال
عنوان ژورنال: Journal of Clinical Sleep Medicine
سال: 2011
ISSN: 1550-9389,1550-9397
DOI: 10.5664/jcsm.28039