Correlating voice handicap index and quantitative videostroboscopy following injection laryngoplasty for unilateral vocal paralysis

Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
David Pang Cheng LauYiong Huak Chan

Abstract

1) Determine the correlation between voice handicap index and quantitative videostroboscopy for patients undergoing injection laryngoplasty for unilateral vocal paralysis; 2) assess which videostroboscopy measurements correlate best with voice handicap index in patients demonstrating progressive improvement beyond six months following injection laryngoplasty. Case series with chart review. Patients undergoing outpatient injection laryngoplasty with hyaluronic acid between 2005 and 2007. Twenty-eight patients were assessed preoperatively and postoperatively using voice handicap index and videostroboscopy. Various videostroboscopy measurements were quantified: glottic open area (ratio of open to total glottic area during closed phase of phonation), glottic closed phase (frame ratio of closed phase to total glottic cycle), supraglottic compression (percent encroachment of supraglottis onto best-fit ellipse around glottis), wave amplitude (difference in glottic open area between open and closed phases), and wave duration (number of frames per glottic cycle). Correlation coefficients were calculated using Spearman's r. One hundred seventeen separate recordings were analyzed. Correlation coefficients between voice handicap index (nor...Continue Reading

References

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Citations

May 20, 2014·Journal of Voice : Official Journal of the Voice Foundation·Liliana CastelblancoJacob Pieter Noordzij
Oct 17, 2013·Journal of Voice : Official Journal of the Voice Foundation·Virgilijus UlozaViktoras Saferis
Nov 14, 2012·Acta Oto-laryngologica·Enrique Cantillo-BañosLeopoldo Ariza-Vargas
Jul 8, 2015·Journal of Voice : Official Journal of the Voice Foundation·Carly J Hosbach-CannonRaymond H Colton
Dec 8, 2019·Journal of Voice : Official Journal of the Voice Foundation·Seung Jin LeeHyangHee Kim

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Software Mentioned

Kay Elemetrics videostroboscopy
SPSS
Adobe Photoshop Creative Suite

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