Vibratory capacity and voice outcome in patients with scarred vocal folds treated with collagen injections--case studies

This prospective case study evaluates the effect of collagen injections on vibratory capacity and voice outcome in four patients with vocal fold scarring. The minimum follow-up time was 6 months. We studied the effect of the injections on the vibratory capacity in a multidimensional way, using compu...

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Bibliographic Details
Published in:Logopedics, phoniatrics, vocology phoniatrics, vocology, 2002, Vol.27 (1), p.4-11
Main Authors: Björck, G., D'Agata, L., Hertegård, S.
Format: Article
Language:English
Subjects:
Acoustic Analysis
Aged
Aged, 80 and over
Cicatrix - physiopathology
Cicatrix - therapy
Collagen
Collagen - administration & dosage
Collagen - therapeutic use
Female
Humans
Injections
Male
Middle Aged
Perceptual Analysis Of Voice Quality
Treatment Outcome
Vibratory Capacity
Videostroboscopy
Vocal Cords - physiopathology
Vocal Fold Scarring
Voice Disorders - physiopathology
Voice Disorders - therapy
Voice Quality - physiology
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Summary:This prospective case study evaluates the effect of collagen injections on vibratory capacity and voice outcome in four patients with vocal fold scarring. The minimum follow-up time was 6 months. We studied the effect of the injections on the vibratory capacity in a multidimensional way, using computerized image analysis of videostroboscopy, acoustic and perceptual analysis of voice recordings, as well as patients' self-evaluations. Subjective voice ratings from the patients showed improvement in two patients, while two patients had no change in voice function. None of the patients experienced any side effects from the treatment. The documented acoustic and perceptual changes were marginal, but the videostroboscopic findings suggest some improvement in vibratory capacity.
ISSN:1401-5439
1651-2022
DOI:10.1080/140154302760146925