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Comparison between two assessment methods for exercise-induced laryngeal obstructions.

Katarina Norlander1, Pernille M Christensen2, Robert C Maat3

  • 1Department of Surgical Sciences, Otorhinolaryngology and Head and Neck Surgery, Uppsala University, Akademiska Sjukhuset, 751 85, Uppsala, Sweden.

European Archives of Oto-Rhino-Laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery
|September 10, 2015
PubMed
Summary
This summary is machine-generated.

The continuous laryngoscopy exercise (CLE) score and EILOMEA software both assess exercise-induced laryngeal obstructions (E-ILOs). While EILOMEA correlates with higher CLE scores, it doesn't differentiate mild obstructions.

Keywords:
CLE scoreContinuous laryngoscopy exercise testE-ILOEILOMEAExercise-induced respiratory difficulties

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Area of Science:

  • Respiratory Medicine
  • Diagnostic Imaging
  • Exercise Physiology

Background:

  • Exercise-induced laryngeal obstructions (E-ILOs) are crucial differential diagnoses for exercise-induced asthma.
  • The continuous laryngoscopy exercise (CLE) test is the standard diagnostic tool for E-ILOs.
  • Two methods, the CLE score and EILOMEA, evaluate E-ILO severity from CLE recordings.

Purpose of the Study:

  • To investigate the consistency between the CLE score and EILOMEA for assessing E-ILO severity.
  • To determine if EILOMEA can reliably differentiate between different grades of E-ILOs.

Main Methods:

  • Sixty laryngoscopic recordings from patients with E-ILOs were evaluated by the developers of both the CLE score and EILOMEA.
  • The CLE score uses a 4-grade scale for glottic and supraglottic obstruction.
  • EILOMEA software calculates obstruction severity using continuous scales and three parameters.

Main Results:

  • EILOMEA measures showed significant differences between CLE scores 1 vs. 2 and 2 vs. 3 for both glottic and supraglottic obstructions.
  • EILOMEA did not significantly differentiate between CLE scores 0 and 1.
  • The two methods demonstrated correlation, except for the distinction between CLE scores 0 and 1.

Conclusions:

  • The EILOMEA method generally correlates with the CLE score in evaluating E-ILOs.
  • EILOMEA's inability to distinguish between CLE scores 0 and 1 is not clinically significant, as only scores 2 and 3 are considered clinically important.
  • Both methods aid in the medical evaluation of exercise-induced laryngeal obstructions.