Vinodh Kumaran, D (2020) A Comparative cross sectional study of Videostroboscopy findings & acoustic voice analysis among males with voice related symptoms in non smokers Versus chronic smokers. Masters thesis, Stanley Medical College, Chennai.
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Abstract
In videostroboscopic parameters, � In the symmetry 30 cases studied in each group, among chronic smokers 13 cases (43.3%) had asymmetry while in non-smokers 4 cases (13.3%) had asymmetry. Statistically significant. � Regarding mucosal wave among the chronic smokers, 6 cases (20%) had bilaterally small wave, whereas among non-smokers no case (0%) had it; while small wave present in 6 cases (20%) in chronic smokers, it is present only in 2 cases (6.6%) in non-smokers. Statistically insignificant. � On observing the periodicity, it was absent in 1 case (3.3%) among chronic smokers & not absent in any case (0%) among non-smokers. Statistically insignificant. � On observing the glottic closure patterns, among chronic smokers 17 cases (56.7%) had complete complete while in the non-smokers it was 24 cases (80%). Statistically significant. In acoustic voice analysis, � With the observed data, the fundamental frequency (F0) among chronic smokers is 203.13Hz & in non-smokers is 164.22Hz. & it is highly significant. � Of the observed data, the standard deviation of fundamental frequency among chronic smokers is 5.59 & among non-smokers is 4.49. & it is insignificant. � Of the observed data, jitter among chronic smoker is 102.81US & among nonsmoker is 154.30US. & it is insignificant. � Of the observed value, shimmer among the chronic smoker is 1.74 & among non-smoker is 0.79. & it is significant. � Of the observed data, noise to harmonic ratio of chronic smokers is 0.17 & among non-smoker it is 0.13.& it is insignificant. GRBAS SCALE: � Of observed data, using GRBAS scale, In smoker GRADE abnormal in 25 cases and normal in 5 cases. And in non smokers GRADE abnormal in 12 cases & normal in 18 cases. � Of observed data, using GRBAS scale, In smoker ROUGHNESS abnormal in 18 cases and normal in 12 cases. And in non smokers BREATHINESS abnormal in 8 cases & normal in 22 cases. � Of observed data, using GRBAS scale, In smoker BREATHINESS abnormal in 5 cases and normal in 25 cases. And in non smokers BREATHINESS abnormal in 12 cases & normal in 18 cases. � Of observed data, using GRBAS scale, In smoker ASTHENICITY abnormal in 13 cases and normal in 17 cases. And in non smokers ASTHENICITY abnormal in 6 cases & normal in 24 cases. � Of observed data, using GRBAS scale, In smoker STRAIN abnormal in 21 cases and normal in 9 cases. And in non smokers BREATHINESS abnormal in 14 cases & normal in 16 cases. In our study, among videostroboscopy parameter symmetry and mucosal wave are significant and other parameters are insignificant. In acoustic voice analysis, the parameters -fundamental frequency and shimmer are significant and others are insignificant. In GRBAS scale, GRADE & ROUGHNESS are significant and others are insignificant. Using videostroboscopy and acoustic voice analysis, though some parameter are insignificant, these two modalities in combination is useful to find out & evaluate the early mucosal lesion of the vocal folds.
| Item Type: | Thesis (Masters) |
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| Uncontrolled Keywords: | Videostroboscopy, acoustic voice analysis, voice related symptoms, non smokers, chronic smokers. |
| Subjects: | MEDICAL > Otolaryngology |
| Depositing User: | Subramani R |
| Date Deposited: | 15 Feb 2021 03:25 |
| Last Modified: | 15 Feb 2021 03:25 |
| URI: | http://repository-tnmgrmu.ac.in/id/eprint/14221 |
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