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Objective measures for functional diagnostic of the upper airways: practical aspects
Objective:
To review the main papers published on the main available tests to obtain objective values of nasal patency and to demonstrate aspects of their use in medical practice.
Methodology:
We performed a non-systematic review of the MEDLINE and LILACS databases, and the most relevant articles were selected.
Results:
Objective evaluations are important in epidemiological studies and in monitoring of patients with nasal obstruction. There is a wide variety of objective tests of nasal function; among them acoustic rhinometry, rhinomanometry, and peak nasal inspiratory flow (PNIF) are currently the most used tests.
Conclusion:
The choice of the method to evaluate nasal function depends on the conditions of each health service. PNIF has been highlighted as a simple and reliable alternative that provides easy-to-interpret results, and is thus an attractive method for clinical practice.
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