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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): 102-107.
doi: https://doi.org/10.22469/jkslp.2016.27.2.102
후두미세수술 전후 성대 용종의 크기 및 위치가 음성의 질의 변화에 미치는 영향
한원규1, 김민수1, 오경호1, 우정수2, 정광윤3, 권순영1
1고려대학교 의과대학 안산병원 이비인후과학교실
2고려대학교 의과대학 구로병원 이비인후과학교실
3고려대학교 의과대학 안암병원 이비인후과학교실
The Correlation between The Size and Location of Vocal Polyp and Voice Quality, Before and After Laryngeal Microsurgery
Won Gue Han1, Min-Su Kim1, Kyung Ho Oh1, Jeung Soo Woo2, Kwang Yoon Jung3, Soon Young Kwon1
1Department of Otorhinolaryngology-Head and Neck Surgery, Ansan Hospital, Korea University College of Medicine, Ansan, Korea
2Department of Otorhinolaryngology-Head and Neck Surgery, Guro Hospital, Korea University College of Medicine, Seoul, Korea
3Department of Otorhinolaryngology-Head and Neck Surgery, Anam Hospital, Korea University College of Medicine, Seoul, Korea
Correspondence  Soon Young Kwon ,Tel: (031) 412-5170, Fax: (031) 412-5174, Email: entkwon@korea.ac.kr
Received: 18 May 2016; Revised: May 18, 2016   Accepted: 15 June 2016.  Published online: 30 December 2016.
ABSTRACT
Background and Objectives
Vocal polyps are caused by inflammation induced by stress or irritation. Many patients with vocal polyps complain voice discomfort. For vocal polyps, surgery such as laryngeal microsurgery has been the mainstay of management. We analyzed the clinical features of vocal polyps, and how the size and location of vocal polyps affect the outcomes of surgery. Methods:We retrospectively reviewed 42 patients from March 2014 to December 2015, who were diagnosed as unilateral single vocal polyp. When we operated on a vocal polyp with laryngeal microscopy, we measured their size and location. The quality of voice was evaluated by GRABS scale, jitter, shimmer, NHR (noise to harmonic ratio), MPT (maximum phonation time), and VHI (voice handicap index) before operation and 4 weeks after operation.
Results
When we divided the patients into large-sized vocal polyp group (the longest length >3 mm) and small-sized vocal polyp group (the longest length ≤3 mm), all parameter differences tend to be greater at large sized vocal polyp. However, these differences were not statistically significant (p>0.05). When we divided into two groups depending on the volume of vocal polyp, no distinct tendency was found. When we compared the location (anterior, mid and posterior) of vocal polyp with the improvement of voice quality, more change was found at mid portion vocal polyp, except the difference of VHI. However, these differences were also not statistically significant (p>0.05).
Conclusion
All parameter differences tend to be greater at large vocal polyp and polyp of the mid location.
KEY WORDS: Vocal polypLaryngeal microsurgeryAerodynamic analysisAcoustic analysisVoice handicap index
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