ACOUSTIC DIFFERENCE IN VOICE OF THE PATIENTS WITH AND WITHOUT ORGANIC LESION IN FUNCTIONAL VOICE DISORDERS

Ministry of Health, Izmir Training and Research Hospital, Department of Otolaryngology & Head and Neck Surgery, Izmir, Turkey In this article, the objective and subjective differences of voices in functional voice disorders with and without organic lesion were discussed. 72 functional voice disorders without any organic lesion and 77 functional voice disorders with an organic lesion were included to this study. Organic lesions were 25 kissing nodules, 29 vocal cord polyp, 15 Reinke edema and 8 vocal cord cyst. Control group consist of 74 nondysphonic volunteers. The diagnosis of voice disorders was established by videolaryngoscopy using a 70º rigid scope. Auditive and acoustic analysis, voice range profile, maximum phonation time and the Disphonia Severity Index (DSI) were measured. Statistical analysis was performed using paired sample T-Test and ANOVA. There was a statistically significant difference in RBH, jitter% and DSI scores of the 3 groups. The voice quality of the FVD without any organic lesion was relatively better than FVD with any organic lesion group. A mass lesion over the vocal folds makes the voices worser in functional voice disorders. Keywords : Functional voice disorders, vocal fold lesion, acoustic analysis