:: Volume 7, Issue 4 (12-2005) ::
2005, 7(4): 321-324 Back to browse issues page
The study of voice disorders in patients suffering from Hypothyroidism
A Mohammadzadeh , E Heydari, F Azizi
Abstract:   (19809 Views)
Introduction: Hypothyroidism is a common disease in Iran. It can interfere with the normal function of some of the systems in the human body one of the symptoms it is associated with is hoarseness, a of dysfunction that may occur in such patients. This study has been performed to determine the details of voice disorders in hypothyroidism. Materials and methods: Hypothyroidism was confirmed in fifteen patients examined by an endocrinologist, using hormone laboratory tests. In all patients T4 level was less than 5 mg[d] and TSH level was over 10 mu/L. the vocalization and speech quality of all the cases were recorded and analyzed using the MDVP program by Visipitch system. Results: The result of this study indicates that the majority of cases suffer from some degrees of dysphonia dryness of pharynx & larynx, hoarseness & the feeling of having a lump in their larynx are among the common complaints of these patients. Fundamental frequency (FO) in their voices with mean & SD (200  47 Hz) indicates a meaningful difference with normal values (P<0/01). Jitter parameter in studied patients with mean & SD (1/79  1/31) also indicates a meaningful difference with normal values (p<0/01). This is also the case with the Shimmer parameter in the studied patients with mean & SD (6/15  4.66) implying a meaningful difference with normal values (p<0/01). Conclusion: This study indicates that voice problems are very common in hypothyroidism.
Keywords: Hypothyroid, Voice parameters and Dysphonia
Full-Text [PDF 231 kb]   (2655 Downloads)    
Type of Study: Original | Subject: Endocrinology
Received: 2006/11/13 | Published: 2005/12/15

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Volume 7, Issue 4 (12-2005) Back to browse issues page