The suspended endoscopy technique (SET) for intra-operative assessment in awake type I thyroplasty—how I do it

Lau, Joshua; Loizou, Peter; Riffat, Faruque

doi:10.21037/ajo.2018.05.04

Cited by 1 publication

(2 citation statements)

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“…16 The grade, roughness, breathiness, asthenia, strain scale is a simple, reliable and established method of perceptual voice assessment. 17 However, intra-operative phonation is affected by factors such as the level of sedation, position and oedema, which makes on-table phonatory feedback unreliable 7,18 (hence the relevance of this study in identifying an independent pre-operative determinant for arytenoid adduction).…”

Section: Discussionmentioning

confidence: 90%

“…In order to help improve functional and anatomical optimisation, intra-operative flexible laryngoscopic examination has been advocated to confirm vocal fold alignment, 18 as was performed in our institution. In our study, both groups showed a significant improvement in maximum phonation time and grade, roughness, breathiness, asthenia, strain scale score following surgical intervention as outcome measures Fig.…”

Section: Discussionmentioning

confidence: 99%

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Arytenoid asymmetry: Is it the most predictive parameter for arytenoid adduction in unilateral vocal fold paralysis?

2021

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Objective The aim of this study was to establish arytenoid asymmetry as a pre-operative predictive parameter for arytenoid adduction surgery in unilateral vocal fold paralysis and thereafter identify the most predictive parameter for arytenoid adduction among the established parameters. Methods A retrospective comparative study was undertaken. The ‘arytenoid asymmetry angle’ formed between skewed ‘glottic’ and ‘interarytenoid’ axes (traced along the plane of closure of the membranous and cartilaginous glottis, respectively) was quantified in pre-operative laryngoscopic images of 85 adults with unilateral vocal fold paralysis who underwent either type 1 thyroplasty (group 1) or type 1 thyroplasty with arytenoid adduction (group 2). The need for arytenoid adduction was determined intra-operatively based on subjective voice improvement and laryngoscopic results. Results Arytenoid asymmetry (p < 0.0001), posterior phonatory gap (p = 0.001) and vertical level difference (p = 0.004) were significantly greater in group 2 (descending order of parameters). Arytenoid asymmetry angle showed a significant positive correlation with the latter two parameters. Conclusion Arytenoid asymmetry is the most predictive parameter for arytenoid adduction. An arytenoid asymmetry angle of more than or equal to 33.9⁰ is an indication for arytenoid adduction. This aids in pre-operative planning of arytenoid adduction.

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Section: Discussionmentioning

confidence: 90%

Section: Discussionmentioning

confidence: 99%