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J Korean Soc Laryngol Phoniatr Logop > Volume 27(2); 2016 > Article
Journal of The Korean Society of Laryngology, Phoniatrics and Logopedics 2016;27(2): 108-113.
doi: https://doi.org/10.22469/jkslp.2016.27.2.108
반회후두신경 손상을 동반하지 않은 갑상선 절제술 환자에서 수술 초기의 음성 및 연하 기능의 변화에 대한 분석
김희진, 금보람, 김근희, 전승식, 김혜진, 김성균, 홍석진, 홍석민, 김용복, 박일석
한림대학교 의과대학 동탄성심병원 이비인후과학교실
Analysis of Voice and Swallowing Symptoms after Thyroidectomy in Patients without Recurrent Laryngeal Nerve Injury in Early Postoperative Period
Heejin Kim, Bo-Ram Keum, Geun Hee Kim, Seung Sik Jeon, Hyejeen Kim, Sung Kyun Kim, Seok Jin Hong, Seok-Min Hong, Yong-Bok Kim, Il-Seok Park
Department of Otolaryngology-Head & Neck Surgery, Dongtan Sacred Heart Hospital, Hallym University, Hwaseong, Korea
Correspondence  Il-Seok Park ,Tel: (031) 8086-2892, Fax: (031) 8086-2681, Email: ispark@hallym.or.kr
Received: 13 October 2016; Revised: October 13, 2016   Accepted: 28 October 2016.  Published online: 30 December 2016.
ABSTRACT
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.
KEY WORDS: ThyroidectomyVoice disordersDysphagia
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