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Resultados funcionales de voz en pacientes con parálisis cordal unilateral en abducción tratados con tiroplastia de medialización.

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Title: Resultados funcionales de voz en pacientes con parálisis cordal unilateral en abducción tratados con tiroplastia de medialización.
Alternate Title: Functional voice outcomes in patients with unilateral vocal fold paralysis in abduction treated with medialization thyroplasty.
Authors: Akaki Caballero, Matsuharu1, Ayala Correa, Alberto2, Martínez Alarcón, Diana Sofía2 soff.mt@gmail.com
Source: Anales de Otorrinolaringología Mexicana. abr-jun2026, Vol. 71 Issue 2, p85-94. 10p.
Subjects: Laryngoplasty, Vocal cords, Iatrogenic diseases, Speech therapy, Laryngeal nerve palsy
Abstract (English): OBJECTIVE: To evaluate and report functional voice outcomes using maximum phonation time and the Voice Handicap Index (VHI-30) in patients with unilateral vocal fold paralysis in abduction of various causes who underwent medialization thyroplasty. MATERIALS AND METHODS: Observational, retrospective, longitudinal cohort study was done in patients with a diagnosis of unilateral vocal fold paralysis in abduction treated with medialization thyroplasty from January 1st, 2015 to December 31, 2023. Pre- and one-month postoperative assessments of VHI-30 and maximum phonation time were analyzed using paired t-tests and Wilcoxon signed-rank tests according to data distribution. RESULTS: Forty-six patients were included, from which 38 were female; mean age was 53.83 years. The left vocal fold was affected in 27 cases. The most common etiology was iatrogenic (39/46). The mean VHI-30 score decreased from 85.97 preoperatively to 35.89 postoperatively (mean difference: 50.08 points, p < 0.0001). Maximum phonation time improved from 5.09 to 9.67 seconds (mean difference: 4.58 seconds, p < 0.0001). Both findings showed large effect sizes. CONCLUSIONS: Medialization thyroplasty significantly improves voice-related quality of life and glottic function in patients with unilateral vocal fold paralysis in abduction. The high prevalence of iatrogenic etiology highlights the need for stricter postoperative surveillance and early referral for voice rehabilitation. [ABSTRACT FROM AUTHOR]
Abstract (Spanish): OBJETIVO: Evaluar los resultados funcionales de voz mediante el índice de discapacidad vocal (VHI-30) y el tiempo máximo fonatorio en pacientes con parálisis cordal unilateral en abducción tratados con tiroplastia tipo 1. MATERIALES Y MÉTODOS: Estudio observacional, retrospectivo y longitudinal, en el que se analizaron pacientes intervenidos de tiroplastia tipo 1 entre 2015 y 2023. Se compararon el tiempo máximo fonatorio y el VHI-30 antes y un mes después de la cirugía. Se aplicó t de Student y prueba de Wilcoxon según la distribución de los datos. RESULTADOS: Se incluyeron 46 pacientes, de los que 38 eran mujeres. La edad media fue de 53.83 años; 27 pacientes tenían parálisis izquierda. La causa más frecuente fue la iatrogénica (39 de 46). El VHI-30 disminuyó de 85.97 a 35.89 puntos (p < 0.0001, d = 2.4) y el tiempo máximo fonatorio aumentó de 5.09 a 9.67 segundos (p < 0.0001, r = 0.99). CONCLUSIONES: La tiroplastia de medialización es una técnica efectiva para restaurar la función vocal y mejorar la calidad de vida en pacientes con parálisis cordal unilateral en abducción. Destaca la alta proporción de causa iatrogénica, lo que subraya la importancia del seguimiento posquirúrgico oportuno. [ABSTRACT FROM AUTHOR]
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Database: MedicLatina
Description
Abstract:OBJECTIVE: To evaluate and report functional voice outcomes using maximum phonation time and the Voice Handicap Index (VHI-30) in patients with unilateral vocal fold paralysis in abduction of various causes who underwent medialization thyroplasty. MATERIALS AND METHODS: Observational, retrospective, longitudinal cohort study was done in patients with a diagnosis of unilateral vocal fold paralysis in abduction treated with medialization thyroplasty from January 1st, 2015 to December 31, 2023. Pre- and one-month postoperative assessments of VHI-30 and maximum phonation time were analyzed using paired t-tests and Wilcoxon signed-rank tests according to data distribution. RESULTS: Forty-six patients were included, from which 38 were female; mean age was 53.83 years. The left vocal fold was affected in 27 cases. The most common etiology was iatrogenic (39/46). The mean VHI-30 score decreased from 85.97 preoperatively to 35.89 postoperatively (mean difference: 50.08 points, p < 0.0001). Maximum phonation time improved from 5.09 to 9.67 seconds (mean difference: 4.58 seconds, p < 0.0001). Both findings showed large effect sizes. CONCLUSIONS: Medialization thyroplasty significantly improves voice-related quality of life and glottic function in patients with unilateral vocal fold paralysis in abduction. The high prevalence of iatrogenic etiology highlights the need for stricter postoperative surveillance and early referral for voice rehabilitation. [ABSTRACT FROM AUTHOR]
ISSN:16655672
DOI:10.24245/aorl.v71i2.10662