¸ñÀû: No standard study protocol or diagnostic criteria based on nasal
provocation test (NPT) and acoustic rhinometry (AR) results are
available for allergic rhinitis. We aimed to evaluate the
usefulness of NPT plus AR for the differential diagnosis of local
allergic rhinitis (LAR), allergic, and vasomotor rhinitides. ¹æ¹ý:The medical records and skin prick test (SPT) and NPT results of
262 patients with symptoms of chronic rhinitis were reviewed.
Patients were allocated to one of three groups, that is, Group A
(n=110, negative SPT result for Dermatophagoides pteronyssinus DP),
Group B (n=53, weakly positive result), or Group C (n=99, strongly
positive result). °á°ú:Twelve patients had a negative SPT result and provoked response in NPT (> 29% decrease of minimal cross-sectional area (MCA) after DP challenge) and were diagnosed to have LAR. After DP challenge, Group C showed significant aggravation of nasal symptoms and a greater decrease in acoustic parameters than Groups A and B (P<0.01). In patients with more than 2 Visual Analogue Scale (VAS) increase in nasal obstruction after DP challenge, the criterion 'a change of total nasal symptom score TNSS > 6.5' had 90.6% sensitivity and 77.4% specificity for the diagnosis of allergic rhinitis, whereas the diagnostic criterion 'a TNV change at 30 minutes after DP challenge of 27.6%' had 73.4% sensitivity and 58.1% specificity. °á·Ð:NPT with AR could be a useful tool for the differential diagnosis
of allergic, non-allergic, and local allergic rhinitis. |