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European Archives of Oto-Rhino-Laryngology
Published in: European Archives of Oto-Rhino-Laryngology 11/2018

Open Access 01-11-2018 | Rhinology

The internal nasal valve: a validated grading system and operative guide

Authors: B. Patel, J. S. Virk, P. S. Randhawa, P. J. Andrews

Published in: European Archives of Oto-Rhino-Laryngology | Issue 11/2018

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Abstract

Purpose

Nasal obstruction is a highly subjective and commonly reported symptom. The internal nasal valve (INV) is the rate limiting step to nasal airflow. A static INV grading score was devised with regard to visibility of the middle turbinate.

Methods

A prospective study of all patients who underwent primary external functional septorhinoplasty in 2017 for nasal obstruction. All patients’ INV score was assessed pre- and postoperatively in a blinded and independent fashion by surgeons of varying seniority.

Results

Twenty-eight patients were studied, with mean age 30.9 years and follow-up 18.8 weeks. Inter-rater and test–retest reliability of INV grading were excellent, with Cronbach’s alpha 0.936 and 0.920, respectively. There was also statistically significant improvement in both subjective and objective postoperative outcome measures including nasal inspiratory peak flows.

Conclusions

We demonstrate a novel, easy to interpret, clinically valuable grading system of the static internal nasal valve that is reliable and reproducible.
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Metadata
Title
The internal nasal valve: a validated grading system and operative guide
Authors
B. Patel
J. S. Virk
P. S. Randhawa
P. J. Andrews
Publication date
01-11-2018
Publisher
Springer Berlin Heidelberg
Published in
European Archives of Oto-Rhino-Laryngology / Issue 11/2018
Print ISSN: 0937-4477
Electronic ISSN: 1434-4726
DOI
https://doi.org/10.1007/s00405-018-5142-x

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