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Journal of The Korean Society of Laryngology, Phoniatrics and Logopedics 2012;23(1): 48-51. |
| 성대낭종과 성대폴립 간의 고음발성 양상의 차이 |
| 이종익, 정고은, 김성태, 김상연, 남순열, 김상윤, 노종렬, 최승호 |
| 울산대학교 의과대학 서울아산병원 이비인후과학교실 |
| Differentiation of Vocal Cyst and Polyp by High-Piched Phonation Characteristics |
| Jong-Ik Lee, Go-Eun Jeong, Seong-Tae Kim, Sang-Yeon Kim, Soon-Yuhl Nam, Sang-Yoon Kim, Jong-Lyel Roh, Seung-Ho Choi |
| Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine |
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| ABSTRACT |
Background and Objectives
: Vocal fold cyst is generally treated by surgical resection, it has a difference with vocal fold polyp, treated by conservative management first. Decrease in mucosal waves is known as main diagnostic criteria of vocal fold cyst. Sometimes there is a difficulty for diffrential diagnosis between cyst and polyp only by endoscopic examination. The purpose of the study is to identify the objective features of vocal cyst and polyp on the basis of voice analysis for the proper differential diagnosis, especially at high pitched phonation.
Materials and Method
: The voice analysis was done in 15 focal fold cyst patients and 42 vocal fold polyp. Parameters of perceptual assessment, acoustic and aerodynamic measure, and voice range profile were compared between two groups.
Results
: Vocal fold cyst patients showed significantly reduced MPT by acoustic and aerodynamic analysis, narrowed frequency-range and low maximun frequency by voice range profile analysis compared with vocal fold polyp patient. Maximun frequency 381 Hz is established for cut off value, differential diagnosis between cyst and polyp (ROC analysis, sensitivity 60%, specificity 68%).
Conclusion
: Voice analysis is helpful for differential diagnosis between vocal fold cyst and polyp, especially there is a difficulty for distinguish cyst from polyp at clinical situation by endoscopic examination. The result of decreased maximum frequncy at vocal fold cyst supports incomplete high-pitched phonation and falsetto regester at vocal fold cyst patients due to decreased mucosal wave, compared with vocal fold polyp patients. |
| KEY WORDS：
Vocal fold cyst;Vocal fold polyp;Falsetto register; |
| 중심 단어：
성대낭종;성대폴립;가성구 발성; |
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