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Abstract

Background

Cold dry air provocation is useful for evaluating nonspecific nasal hyperreactivity. However, there is no research on nasal volume and dimensions after cold dry air provocation. In this respect, acoustic rhinometry is a useful tool in objectively assessing nasal cavity volume and dimension. The goal of this study was to evaluate nonspecific hyperreactivity using cold dry air provocation with acoustic rhinometry.

Methods

Cold dry air provocation with acoustic rhinometry was performed on 21 healthy volunteers (group A), 24 patients with allergic rhinitis (group B), and 32 patients with nonallergic rhinitis (group C). The change in symptoms using a visual analog scale (VAS), amount of rhinorrhea, and change of total nasal volume (TNV) and minimal cross-sectional area (MCA) were measured in all three groups.

Results

The two patient groups showed greater change in nasal symptoms (VAS, 2.0 ± 2.3 in group C versus 0.9 ± 1.8 in group A), more rhinorrhea (0.4 ± 0.7 g in group B and 0.3 ± 0.3 g in group C versus 0.1 ± 0.1 g in group A), and greater change in total nasal volume (TNV) and MCA. The patient group with history of nonspecific hyperreactivity showed more rhinorrhea (0.5 ± 0.7 g versus 0.1 ± 0.2 g) and greater change in TNV and MCA (TNV, 56.8 ± 39.5% versus 18.0 ± 17.0%; MCA, 86.6 ± 81.0% versus 11.5 ± 9.7%).

Conclusion

Cold dry air provocation with acoustic rhinometry could be a useful adjunct tool for detecting nonspecific hyperreactivity.

Keywords

Acoustic rhinometry cold dry air dimension minimal cross-sectional area nasal cavity nasal volume nonallergic nonspecific hyperreactivity provocation rhinorrhea

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Use of Cold Dry Air Provocation with Acoustic Rhinometry in Detecting Nonspecific Nasal Hyperreactivity

Abstract

Background

Methods

Results

Conclusion

Keywords

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References