title: [Use of acoustic rhinometry for determining segmental airway geometry with nasal positive or negative pressure].
abstract: The investigations show an application of nasal acoustic rhinometry for determination of segmental naso- and oropharyngeal airway cross-section during negative or positive pressure breathing. The investigations show in 16 patients with obstructive sleep apnoea (AI = 21.5), that negative pressure produces a segmentally different reduction of naso-oropharyngeal cross-section which is weakly correlated to the Broca index. But the amount of cross-sectional reduction is highly significantly correlated to the apnoea index (r = 0.64). The functional relationship between pressure load of the airways during wakefulness and the severe nature of the disease reveals the possibility of diagnostic use.
authors.affiliation: Institut für Rehaforschung, Klinik Norderney.
authors.forename: F
authors.initials: F
authors.lastname: Raschke
authors.forename: J
authors.initials: J
authors.lastname: Fischer
mesh_terms: D000328:Adult; D000402:Airway Obstruction / Q000175:diagnosis / Q000503:physiopathology* / Q000534:rehabilitation; D006801:Humans; D008297:Male; D008365:Manometry; D008875:Middle Aged; D015508:Nasal Obstruction / Q000175:diagnosis / Q000503:physiopathology* / Q000534:rehabilitation; D010614:Pharynx / Q000503:physiopathology; D011175:Positive-Pressure Respiration; D012123:Pulmonary Ventilation / Q000502:physiology*; D012891:Sleep Apnea Syndromes / Q000175:diagnosis / Q000503:physiopathology* / Q000534:rehabilitation
vernacular_title: Anwendung der akustischen Rhinometrie zur Ermittlung der segmentalen Atemwegsgeometrie bei nasalem Uber- und Unterdruck.