Document Detail

Effect of Weight Loss on Voice After Bariatric Surgery.
MedLine Citation:
PMID:  24954040     Owner:  NLM     Status:  Publisher    
OBJECTIVE: To investigate the effect of weight loss on voice.
STUDY DESIGN: Prospective study.
SUBJECTS: A total of 15 subjects undergoing bariatric surgery were investigated. Six subjects were lost to follow-up, and nine subjects were evaluated preoperatively and 3-6 months postoperatively. The evaluation included a questionnaire on voice quality filled by the patient, laryngeal examination, perceptual evaluation, and acoustic analysis. The questionnaire consisted of four questions: change in vocal pitch, change in vocal loudness, increase or decrease in phonatory effort, and the presence or absence of vocal fatigue. For the perceptual evaluation, a simplified version of the Grade, Roughness, Breathiness, Asthenia, Strain scale classification was used. These parameters were rated using a score ranging from zero to three where zero stands for none and three for severe. For the acoustic analysis, the following variables were measured: fundamental frequency, habitual pitch, jitter, shimmer, noise-to-harmonics ratio, voice turbulence index, and maximum phonation time.
RESULTS: The mean age was 35.56 ± 9.93 years. The mean weight preoperatively and postoperatively was 112.17 and 83.61 kg, respectively. The body mass index dropped by eight points from 38.06 to 30.83. Only three of the nine patients have reported change in voice quality. The latter was described as an increase in vocal pitch in the three cases, reduced loudness and increased phonatory effort in two, and the presence of vocal fatigue in one. There was no significant difference in the mean score of any of the perceptual parameters in patients preoperatively versus postoperatively. There was also no significant difference in any of the acoustic parameters or in the laryngeal findings before and after surgery.
CONCLUSION: One-third of the patients with weight loss reported change in voice quality that was not documented acoustically. The laryngeal examination is nonrevealing.
Abdul-Latif Hamdan; Bassem Safadi; Ghassan Chamseddine; Maher Kasty; Zaahir A Turfe; Georges Ziade
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-6-18
Journal Detail:
Title:  Journal of voice : official journal of the Voice Foundation     Volume:  -     ISSN:  1873-4588     ISO Abbreviation:  J Voice     Publication Date:  2014 Jun 
Date Detail:
Created Date:  2014-6-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8712262     Medline TA:  J Voice     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2014 The Voice Foundation. Published by Mosby, Inc. All rights reserved.
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