Differences in glottal closure and visibility of the anterior commissure during rigid-90 °, rigid-70° and flexible laryngostroboscopy

Conclusion We found mainly corresponding results in both rigid-90° and rigid-70° endoscopic techniques which can be explained by the same transoral approach with the tongue pulled out, whereas the flexible transnasal endoscopy mainly gives a better view on the anterior commissure. The influence of transorally or transnasally guided endoscopic techniques need to be considered in interpretation of laryngostroboscopic parameters like vocal fold closure and supraglottal hyperactivity.
Source: Folia Phoniatrica et Logopaedica - Category: Speech-Language Pathology Source Type: research