[The evaluation of nasal ventilation in allergic rhinitis patients after nasal provocation].

Objective: To evaluate nasal ventilation in allergic rhinitis patients after nasal provocation with acoustic rhinometry.

Method: Twenty AR cases were selected. Each one was assessed for the nasal cavity volumes (NCV), nasal airway resistance (NR), nasal minimal cross-section area (NMCA) and distance of nasal minimal cross-section area from nostril (DCAN) by using acoustic rhinometry before and after nasal provocation 1 hour and 6 hours later.