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Thursday, December 31, 2020

Surgical interventions for pediatric unilateral vocal fold paralysis: A systematic review and meta-analysis.

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Surgical interventions for pediatric unilateral vocal fold paralysis: A systematic review and meta-analysis.

Int J Pediatr Otorhinolaryngol. 2020 Dec 11;141:110553

Authors: Aires MM, Marinho CB, Vasconcelos SJ

Abstract
OBJECTIVE: To evaluate outcomes of injection laryngoplasty (IL) and laryngeal reinnervation for the treatment of pediatric Unilateral Vocal Fold Paralysis (UVFP), especially on swallowing and quality of voice.
METHODS: A literature review was performed in Medline/PubMed and Cochrane Library, following PRISMA guidelines, with no constraints on publication date. We included studies in English, Portuguese or Spanish about surgical treatment for UVFP on the pediatric population (0-21 years) that documented outcomes for one of the following techniques: IL or laryngeal reinnervation. Study characteristics, patient demographics, technical aspects of each procedure, complications, and outcomes for voice and swallowing were extracted. A meta-analysis with inverse variance, random-effects model was performed.
RESULTS: The PRISMA approach yielded 22 studies, totaling 267 patients. Seven reinnervation articles were included in meta-analysis for maximum phonation time (MPT) and quality of voice measured by Grade, Roughness, Breathiness, Asthenia and Strain (GRBAS) scale. Cardiac surgery had caused UVFP in 62.8% (142/226) of the cases. The main indication for IL was aspiration and for reinnervation was dysphonia. For IL, there was an improvement of 84.5% (confidence interval [CI] 82.6-88.4%) in swallowing and 81.4% (CI 74.6-88.1%) in voice. For reinnervation, there was an improvement of 91.6% (CI 88.2-94.9%) in swallowing and 96.8% (CI 95.5-98.0%) in voice. We found an increase of 6.19 s (CI 1.00 to 11.38) in MPT and a mean difference in GRBAS sum of -3.53 points (CI -6.15 to -0.91) after reinnervation.
CONCLUSION: Retrospective cohort studies suggest that injection laryngoplasty and reinnervation are both effective in improving swallowing and voice in children with UVFP. There was clinical evidence of improvement in the MPT and GRBAS scale meta-analysis in patients undergoing reinnervation.

PMID: 33333340 [PubMed - as supplied by publisher]

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