Widening of posterior glottis through rotation of the arytenoid on its axis: Report of nine cases

Tintinago, Luis Fernando; Victoria, William; Candelo, Estephanía; Diaz, Juan Camilo; Arce, Juan Carlos; Aristizabal, Luis Miguel; Sanz, Claudia; Montes, María Claudia; Velez-Esquivia, Maria A.

doi:10.1016/j.amjoto.2018.06.005

Cited by 1 publication

(2 citation statements)

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“…25 In addition, previous work has shown that PROMs are useful in assessing airway disorders such as idiopathic subglottic stenosis. [26][27] In the current study, there was a moderate correlation between AGA and dyspnea-related quality of life, as well as statistically significant difference between voice and dyspnea symptoms in BVFI patients requiring operative intervention. These results suggest further validation of AGATI for measuring BVFI.…”

Section: Discussionsupporting

confidence: 45%

“…In laryngology, PROMs are critical in the assessment of patient health, not only because of the relationship between voice and swallowing with quality of life 24 but also because patient reports do not always correlate with physical exam or objective findings 25 . In addition, previous work has shown that PROMs are useful in assessing airway disorders such as idiopathic subglottic stenosis 26–27 . In the current study, there was a moderate correlation between AGA and dyspnea‐related quality of life, as well as statistically significant difference between voice and dyspnea symptoms in BVFI patients requiring operative intervention.…”

Section: Discussionmentioning

confidence: 52%

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Predictive Outcomes of Deep Learning Measurement of the Anterior Glottic Angle in Bilateral Vocal Fold Immobility

et al. 2022

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Objective(1) To compare maximum glottic opening angle (anterior glottic angle, AGA) in patients with bilateral vocal fold immobility (BVFI), unilateral vocal fold immobility (UVFI) and normal larynges (NL), and (2) to correlate maximum AGA with patient‐reported outcome measures.MethodsPatients wisth BVFI, UVFI, and NL were retrospectively studied. An open‐source deep learning‐based computer vision tool for vocal fold tracking was used to analyze videolaryngoscopy. Minimum and maximum AGA were calculated and correlated with three patient‐reported outcomes measures.ResultsTwo hundred and fourteen patients were included. Mean maximum AGA was 29.91° (14.40° SD), 42.59° (12.37° SD), and 57.08° (11.14° SD) in BVFI (N = 70), UVFI (N = 70), and NL (N = 72) groups, respectively (p < 0.001). Patients requiring operative airway intervention for BVFI had an average maximum AGA of 24.94° (10.66° SD), statistically different from those not requiring intervention (p = 0.0001). There was moderate negative correlation between Dyspnea Index scores and AGA (Spearman r = −0.345, p = 0.0003). Maximum AGA demonstrated high discriminatory ability for BVFI diagnosis (AUC 0.92, 95% CI 0.81–0.97, p < 0.001) and moderate ability to predict need for operative airway intervention (AUC 0.77, 95% CI 0.64–0.89, p < 0.001).ConclusionsA computer vision tool for quantitative assessment of the AGA from videolaryngoscopy demonstrated ability to discriminate between patients with BVFI, UVFI, and normal controls and predict need for operative airway intervention. This tool may be useful for assessment of other neurological laryngeal conditions and may help guide decision‐making in laryngeal surgery.Level of EvidenceIII Laryngoscope, 133:2285–2291, 2023

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Section: Discussionsupporting

confidence: 45%