KMID : 0384020080190020142
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Journal of the Korean Society of Logopedics and Phoniatrics 2008 Volume.19 No. 2 p.142 ~ p.145
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Change of Acoustic Parameter and Voice Handicap Index after Laryngeal Microsurgery
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Kim Bum-Suk
Tae Kyung Lee Yong-Seop Kim Kyung-Rae Shin Ji-Hoon Kim Ki-Yong
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Abstract
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Background and Object: The aim of this study is to evaluate the change of patient¡¯s subjective voice handicap index (VHI) and acoustic parameters before and after laryngeal microsurgery for benign vocal cord disease. Materials and
Method: We analyzed 78 patients who received laryngeal microsurgery for benign vocal cord disease from January 2004 to February 2007 retrospectively. There were 28 vocal polyp, 40 vocal nodule, 5 intracordal cyst and 5 Reinke¡¯s edema. Jitter, shimmer, harmony to noise ratio (HNR) were analyzed before surgery and 2-3months after surgery using the Doctor¡¯s speech science program. The voice handicap index introduced by the Pittsburgh Voice Center was used to examine patient¡¯s subjective change of voice quality.
Results: Acoustic parameters of jitter, shimmer and HNR were improved in patients with vocal polyp and vocal nodule after surgery. The acoustic parameters were not improved in patients with Reinke¡¯s edema, statistically. Only jitter was improved significantly in patients with intracordal cyst (p<0.05). The VHI was significantly improved after surgery. The change of jitter and shimmer was significantly correlated with the change of VHI after surgery.
Conclusion: The acoustic parameters and VHI were significantly improved in patients with benign vocal disease after laryngeal microsurgery.
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KEYWORD
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Acoustic parameer, Laryngeal microsurgery, Voice handicap index
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