Correlation Between Peak Nasal Flow Reversibility and Mucociliary Clearance in Allergic Rhinitis

The Laryngoscope
Virat KirtsreesakulSuwalee Ruttanaphol

Abstract

Reversibility of nasal airflow after decongestion measured by rhinomanometry is associated with the severity of allergic inflammation. Peak nasal flow is a simpler alternative method for assessing nasal patency. The aim of this study was to evaluate the correlation between changes in peak nasal expiratory and inspiratory flows (PNEFs and PNIFs) after decongestion and nasal mucociliary clearance times (NMCCTs). Single-center, prospective cross-sectional study. One hundred one allergic rhinitis patients were enrolled. Nasal symptoms and NMCCTs were assessed. PNEF and PNIF were performed before and after decongestion. Correlations between changes in PNEF and PNIF after decongestion and NMCCTs were analyzed. One-half the standard deviation of baseline peak nasal flows was used to estimate the minimal clinically important differences (MCIDs) and discriminate between patients with reversible mucosa and with irreversible mucosa. PNEF showed more peak flow improvements after decongestion compared to PNIF. Changes in PNEF had better negative correlations with NMCCTs than PNIF (ρ = -0.49, P < .001 and ρ = -0.34, P < .001, respectively). The MCID values of the PNEF and PNIF were 27.93 and 19.74, respectively. In comparisons of NMCCTs betw...Continue Reading

References

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Apr 11, 2014·American Journal of Rhinology & Allergy·Virat KirtsreesakulSuwalee Ruttanaphol
Sep 12, 2015·American Journal of Rhinology & Allergy·Virat KirtsreesakulSuwalee Ruttanaphol

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