Voice Characteristics of Adductor Spasmodic Dysphonia before and after Botulinum Toxin-A Injection / 대한이비인후과학회지
Korean Journal of Otolaryngology - Head and Neck Surgery
;
: 148-153, 2011.
Artículo
en Coreano
| WPRIM
| ID: wpr-652214
ABSTRACT
BACKGROUND AND OBJECTIVES:
Botulinum toxin type A (BTX-A) injection is well known for its effectiveness in the treatment of "Spasmodic dysphonia". However, studies on the efficacy of BTX-A injection have not been attempted in Korea. Therefore, this study was carried out to investigate the effects of BTX-A. SUBJECTS ANDMETHOD:
The study examined 12 female patients with 'adductor spasmodic dysphonia'. Objective assesments included aerodynamic analysis and electoroglottography (EGG) of each patient before and after BTX-A. Subjective assessments included using the Korean-version of Voice Handicap Index-30 (KVHI-30) and a patient self-rating scale.RESULTS:
Aerodynamic analysis revealed that only maximum phonation time (MPT) was significantly shortened after the injection of BTX-A (p<0.05). In the EGG, the mean frequency distribution was significantly increased, while the mean amplitude and the mean closed quotient distribution were significantly decreased (p<0.05). The KVHI-30 and patient self-rating scale scores were significantly decreased (p<0.01) as well, demonstrating the effects of BTX-A on the quality of life.CONCLUSION:
Our results show the effects of BTX-A objectively by comparing voice characteristics, which were measured through EGG before and after BTX-A injection, as well as by determining aerodynamic characteristics. The subjective self-assessment on the quality of life is significant as it may serve as a clinically relevant measure. This study may be helpful in elucidating treatment efficacy of BTX-A in many ways.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Óvulo
/
Fonación
/
Calidad de Vida
/
Autoevaluación (Psicología)
/
Voz
/
Toxinas Botulínicas
/
Resultado del Tratamiento
/
Equidae
/
Toxinas Botulínicas Tipo A
/
Disfonía
Límite:
Femenino
/
Humanos
País/Región como asunto:
Asia
Idioma:
Coreano
Revista:
Korean Journal of Otolaryngology - Head and Neck Surgery
Año:
2011
Tipo del documento:
Artículo
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