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KMID : 1004320160270020108
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Journal of the Korean Society of Logopedics and Phoniatrics
2016 Volume.27 No. 2 p.108 ~ p.113
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Analysis of Voice and Swallowing Symptoms after Thyroidectomy in Patients without Recurrent Laryngeal Nerve Injury in Early Postoperative Period
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Kim Hee-Jin
Keum Bo-Ram
Kim Geun-Hee
Jeon Seung-Sik
Kim Hye-Jeen
Kim Sung-Kyun
Hong Seok-Jin
Hong Seok-Min
Kim Yong-Bok
Park Il-Seok
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Abstract
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Background and Objectives：After thyroidectomy, many patients experience problems report such things as reduced voice range and vocal fatigue, swallowing problems without superior and recurrent laryngeal nerve injury. The purpose of this study was to evaluate voice and swallowing problems before and after thyroid surgery without laryngeal nerve injury.
Materials and Methods：Ninety-three patients who underwent thyroidectomy without laryngeal nerve injury and completed the follow-up evaluations were studied between June 2013 and December 2015. Each evaluation was performed preoperatively, as well as 1 week, 1 month postoperatively. Analysis was performed including voice handicap index (VHI), dysphagia handicap index (DHI), and acoustic voice analysis.
Results：Patients show significant variation of parameters in the fundamental frequency (F), maximal phonation time (MPT), shimmer, jitter and soft phonation index (SPI) early after operation, and most of them showed recovery of parameters after 1month of operation. Perceptive complaint of voice and swallowing also showed significant decreased after operation (p＜0.005). After 1month of operation, MPT, highest frequency and frequency ranges still showed significant decreased parameters. Comparing acoustic and perceptive parameters of total thyroidectomy and lobectomy, there was no significant changes between them except highest frequency (p=0.042).
Conclusion：The results from both subjective and objective evaluations show voice and swallowing disturbance after thyroidectomy even in the absence of laryngeal nerve and provide patients information about the recovery process after surgery. Highest frequency parameter showed most significant changes after operation.
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KEYWORD
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Thyroidectomy, Voice disorders, Dysphagia
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