title: [The critical point in laryngeal and tracheal obstruction (author's transl)].
abstract: Laryngeal and tracheal obstruction can be more fully assessed using plethysmography. Experiences with 46 patients show that airway resistances exceeding 150 mm H2O/l/s always indicate a critical situation and these patients require urgent tracheostomy or intubation. - Three patients with glottic tumours and one patient with glottic oedema were tracheotomized because of the danger of asphyxiation. In these, resistances of between 107.4 and 150 mm H2O/l/s were found. Airway resistance exceeding 100 mm H2O/l/s are therefore critical indicators in patients with glottic oedema and laryngeal tumours.
mesh_terms: D000403:Airway Resistance; D006801:Humans; D007822:Laryngeal Neoplasms / Q000150:complications; D007829:Laryngostenosis / Q000175:diagnosis* / Q000209:etiology; D010243:Paralysis / Q000150:complications; D010991:Plethysmography; D012009:Recurrent Laryngeal Nerve; D014135:Tracheal Stenosis / Q000175:diagnosis*; D014140:Tracheotomy
vernacular_title: Zur kritischen Enge bei Kehlkopf- und Luftröhrenstenosen.