title: [Measurement of blood flow in nasal mucosa].
abstract: OBJECTIVE
  To determine the amount of blood flow in the human nasal mucosa and its change in patients with nasal polyps and allergic rhinitis.
  
  
  METHODS
  Using the Ameflow-H2, the amount of blood flow in nasal mucosa was examined in 98 normal adults, 18 cases of nasal polyps and 14 cases of allergic rhinitis before and after application of the vaso constrictor.
  
  
  RESULTS
  Before the application of the vaso constrictor, blood flow of nasal mucosa of patients with nasal polyps and allergic rhinitis was lower than that of healthy people (P < 0.01). After using the vaso constrictor, the amount of blood flow was decreased in all cases with a significant decrease in patients with nasal polyps.
  
  
  CONCLUSIONS
  Ameflow-H2 may be the best tool to measure nasal blood flow than other devices. The method is technically simple, less traumatic, and repeatable.
authors.affiliation: Third Clinical College of Bethune University of Medical Sciences, Changchun 130031.
authors.forename: S
authors.initials: S
authors.lastname: Li
authors.forename: Q
authors.initials: Q
authors.lastname: Zhang
authors.forename: Z
authors.initials: Z
authors.lastname: Yang
mesh_terms: D000293:Adolescent; D000328:Adult; D004809:Ephedrine / Q000494:pharmacology; D006801:Humans; D008297:Male; D008833:Microcirculation / Q000187:drug effects; D009297:Nasal Mucosa / Q000098:blood supply*; D009298:Nasal Polyps / Q000503:physiopathology*; D012852:Sinusitis / Q000503:physiopathology*; D014662:Vasoconstrictor Agents / Q000494:pharmacology
chemical_list: D014662:Vasoconstrictor Agents; D004809:Ephedrine