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Updated: Aug 30, 2025

Minimally Invasive Murine Laryngoscopy for Close-Up Imaging of Laryngeal Motion During Breathing and Swallowing
Published on: December 1, 2023
Presbylarynx: validation of a classification based on morphological characteristics
Mariline Santos1, Susana Vaz Freitas2,3, Cecília Almeida E Sousa2
1Serviço de Otorrinolaringologia do Centro Hospitalar Universitário do Porto e Instituto Ciências Biomédicas Abel Salazar, Universidade do Porto, Largo Professor Abel Salazar, 4100-099, Porto, Portugal. marilinesantos2910@gmail.com.
Purpose:
Validation of a classification to stratify presbylarynx into three types.
Methods:
Evaluate the reproducibility of this classification. 30 video recordings of rigid laryngostroboscopies were presented to 20 otorhinolaryngologists from five tertiary hospitals: 10 residents and 10 specialists. Specialists with different differentiations were included.
Results:
Among 1200 evaluations performed (30 video recordings × 20 raters, twice), average intra-rater agreement rate was 0.847 (p < 0.001). The average inter-rater reliability was 0.67 ± 0.179 on the first evaluation, and 0.691 ± 0.131 on the second evaluation.
Conclusions:
This study presented the validation of a classification that allows stratifying laryngeal endoscopic signs in elderly patients with presbyphonia. We believe that this classification will enrich the diagnostic protocol of the aging voice and will improve the documentation of treatment outcomes.
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