ArticleOtolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery2025
"Active Larynx": Preliminary Evaluation of the Reliability of Visual Assessments of Laryngeal Inflammation.
Article in Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveThe term "active larynx" is a nonspecific and subjective term used by otolaryngologists to describe laryngeal inflammation that can influence the timing of airway reconstruction. We sought to measure the reliability of visual assessments of laryngeal inflammation for later scale development. STUDY
designA cross-sectional study.
settingPediatric tertiary care center.
methodsWe created an image library from a direct laryngoscopy and bronchoscopy database. Blinded judges were asked to rate the characteristics of laryngeal inflammation (edema, erythema, cobblestoned appearance, and ventricular eversion; 5-point Likert scale), the overall "activeness" of the larynx (10-point scale), and whether laryngeal inflammation would influence a delay in reconstructive surgery (yes/no). A tentative scale was also constructed. Intraclass correlations with 2-way random effects, and Fleiss's κ were used to evaluate interrater reliability. The convergent and discriminant validity of the tentative scale were measured.
resultsThree pediatric otolaryngologists reviewed 15 larynges for a total of 45 image ratings. Intraclass coefficients indicated substantial agreement for edema (0.76) and erythema (0.83) and moderate agreement for ventricular eversion (0.58). Cobblestoning had low agreement (intraclass correlation coefficient [ICC] < 0.20). The agreement was substantial for overall "activeness" (ICC 0.76) and moderate for whether inflammation would delay surgery (ICC 0.47). By Fleiss's κ, edema and erythema had moderate agreement (0.50 and 0.61, respectively), whereas all others had poor agreement. The convergent and discriminant validity of the tentative scale were reassuring.
conclusionWhile the reliability of laryngeal inflammation by visual assessment is variable, the creation of an active larynx scale appears feasible.
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