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Posterior glottic gap and age as factors predicting voice outcome of injection laryngoplasty in patients with unilateral vocal fold paralysis

Published online by Cambridge University Press:  06 October 2011

J Choi
Affiliation:
Department of Otorhinolaryngology – Head and Neck Surgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, South Korea
Y-I Son*
Affiliation:
Department of Otorhinolaryngology – Head and Neck Surgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, South Korea
Y K So
Affiliation:
Department of Otorhinolaryngology – Head and Neck Surgery, Inje University Haeundae Paik Hospital, Busan, South Korea
H Byun
Affiliation:
Department of Otorhinolaryngology – Head and Neck Surgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, South Korea
E-K Lee
Affiliation:
Department of Otorhinolaryngology – Head and Neck Surgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, South Korea
Y-S Yun
Affiliation:
Department of Otorhinolaryngology – Head and Neck Surgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, South Korea
*
Address for correspondence: Dr Young-Ik Son, Department of Otorhinolaryngology – Head and Neck Surgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, 50 Ilwon-dong, Gangnam-gu, 135-710 Seoul, South Korea Fax: +82 2 3410 3879 E-mail: yison@skku.edu

Abstract

Objectives:

This study aimed to analyse demographic profiles and pre-injection stroboscopic findings for patients with unilateral vocal fold paralysis, to investigate possible predictive factors for voice outcomes of injection laryngoplasty.

Materials and methods:

Fifty-nine unilateral vocal fold paralysis patients underwent vocal fold augmentation, using transcutaneous Artecoll (polymethyl methacrylate microspheres plus bovine collagen) injection into the paralysed vocal fold via the cricothyroid space. Three months later, patients were divided into improved (n = 44) and unimproved (n = 15) groups, using the perceptual grade-roughness-breathiness-asthenia-strain scale, and their clinical characteristics and pre-operative stroboscopic findings compared.

Results:

The improved group were significantly younger than the unimproved group (p = 0.000). The size of the posterior gap on phonation was closely associated with the outcome of injection laryngoplasty (p = 0.015).

Conclusion:

Younger patients with a smaller posterior glottic gap on phonation can be expected to have a more favourable outcome following injection laryngoplasty for correction of glottic insufficiency due to unilateral vocal fold paralysis.

Information

Type
Main Articles
Copyright
Copyright © JLO (1984) Limited 2011

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