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KMID : 1036820190240020525
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Communication Sciences & Disorders
2019 Volume.24 No. 2 p.525 ~ p.534
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Effect of Voice Therapy for Persistent Dysphonia Following Laryngeal Microsurgery
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Kim Ji-Sung
Choi Seong-Hee
Choi Chul-Hee
Lee Dong-Wook
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Abstract
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Objectives: There are multidisciplinary and collaborative approaches for management of benign vocal fold lesions. Laryngeal microsurgery is one of the management procedures for treatment of dysphonia with medication and voice therapy. Laryngeal microsurgery, in particular, has been implemented when there is no vocal improvement after medication or voice therapy. However, voice problems often persist following surgery. The aim of this study was to investigate the effect of voice therapy in the treatment of postoperative functional dysphonia.
Methods: Indirect and direct voice therapy consisting of laryngeal massage and semi-occluded vocal tract exercises (SOVTE) were performed on 14 female patients with dysphonia. Auditory-perceptual, acoustic analysis and the Korean version of Voice Handicap Index-10 (K-VHI-10) were compared before and after voice therapy.
Results: In acoustic analysis, standard deviation of F0 (STD), Jitter, pitch perturbation quotient (PPQ), fundamental frequency variation (vF0), Shimmer, amplitude perturbation quotient (APQ), peak to peak amplitude variation (vAm), noise-to-harmonic ratio (NHR), degree of sub-harmonic (DSH) were significantly lower after voice therapy. Significantly lower levels of ‘grade’, ‘breathiness’, and ‘strain’ in GRBAS were revealed following voice therapy. In addition, K-VHI-10 was also significantly reduced after voice therapy.
Conclusion: SOVTE and laryngeal massage were effective for patients with persists dysphonia by modifying or eliminating inappropriate vocal patterns that lead to voice dysfunction. Therefore, voice therapy following laryngeal surgery can be useful to recover vocal fold functions that cannot be solved by voice rest or vocal hygiene alone.
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KEYWORD
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Laryngeal microsurgery, Dysphonia, Voice therapy, Wound healing
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