Subjective and Objective Evaluation of Voice Quality in Patients With Asthma |
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Authors: | Muzeyyen Dogan Emel Eryuksel Ismail Kocak Turgay Celikel Mehmet Ali Sehitoglu |
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Institution: | Marmara University School of Medicine, Department of Otorhinolaryngology Head and Neck Surgery, Istanbul, Turkey. muzo657@yahoo.com |
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Abstract: | OBJECTIVES: To evaluate the voice quality in patients with mild-to-moderate asthma by subjective and objective methods. STUDY DESIGN: Comparative, controlled, cross-sectional study. METHODS: Patients with mild-to-moderate asthma (n=40) and age- and sex-matched healthy controls (n=40) were included. Acoustic analyses were performed by the Multi-Dimensional Voice Program (MDVP; Kay Elemetrics Corporation, Lincoln Park, NJ) and the movements of the vocal cords were examined by videolaryngostroboscopy (VLS). In addition, the duration of illness, maximum phonation time, "s/z" values, and vital capacity were evaluated. Voice Handicap Index (VHI) and GRB scales were used for subjective evaluations. RESULTS: Maximum phonation time values were significantly shorter both in male and female asthma patients compared with controls (P<0.0001). Also, average shimmer values in MDVP were higher for both sexes in the patient group compared with controls (P=0.002 and P=0.04, respectively). There was a significant difference between female patients and sex-matched controls with regard to mean noise-to-harmonic ratio values (P=0.006). Female patients with asthma had higher average jitter values compared with sex-matched controls (P<0.0001). A significant difference was noted between asthma and control groups with regard to GRB scale (P<0.0001, P<0.001, and P<0.0001, respectively). The VHI score was above the normal limit in 16 (40%), and VLS findings were abnormal in 39 (97.5%) asthmatics. CONCLUSION: In asthmatic patients, maximum phonation time, frequency, and amplitude perturbation parameters were impaired, but the vital capacity and the duration of illness did not correlate with these findings. |
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Keywords: | Asthma Dysphonia Acoustic analysis |
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