Journal of voice : official journal of the Voice Foundation · 2020
Contribution of Weight and Volume of the Extirpated Thyroid Gland on Voice Alterations After Total Thyroidectomy in Patients With Papillary Carcinoma of the Thyroid.
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Jain Prateek Vijay, Roy Dipanwita, Manikantan Kapila, Sharan Rajeev, Tshering Phub, Arun Pattatheyil
Аннотация
PURPOSE: Voice change after thyroid surgery is common despite preservation of laryngeal nerves. In this study, we sought to find if the change in voice after total thyroidectomy is related to the weight and volume of the removed thyroid gland.
METHODS: This is a prospective cohort study of 50 patients of papillary carcinoma of the thyroid treated with total thyroidectomy from December 2016 through May 2018. Both objective and subjective voice parameters were analyzed preoperatively and at 1 and 3 months following surgery.
RESULTS: A cohort of 29 patients, with a median age of 31 years (18-64 years), comprising 22 women were eligible for final analysis. Speaking fundamental frequency showed a mean change of 17.21 Hz (SD 34.49) while the mean intensity change was 5.54 dB (SD 18.21). The mean weight and volume of thyroid gland was 18.99 g (SD 8.93) and 15.67 ml (SD 8.70), respectively. On multivariate analysis, both weight and volume affected the range of frequency (P = 0.002 and 0.035, respectively) and range of intensity (P = 0.014 and 0.008, respectively).
CONCLUSION: Larger thyroid tumors are more likely to be associated with transient change in voice quality following their surgical removal despite physical preservation of external and recurrent laryngeal nerves, which may persist up to 3 months. This study affirms that perturbations in voice after thyroidectomy can still exist in spite of clinical demonstration of integrity of neuromuscular function.
METHODS: This is a prospective cohort study of 50 patients of papillary carcinoma of the thyroid treated with total thyroidectomy from December 2016 through May 2018. Both objective and subjective voice parameters were analyzed preoperatively and at 1 and 3 months following surgery.
RESULTS: A cohort of 29 patients, with a median age of 31 years (18-64 years), comprising 22 women were eligible for final analysis. Speaking fundamental frequency showed a mean change of 17.21 Hz (SD 34.49) while the mean intensity change was 5.54 dB (SD 18.21). The mean weight and volume of thyroid gland was 18.99 g (SD 8.93) and 15.67 ml (SD 8.70), respectively. On multivariate analysis, both weight and volume affected the range of frequency (P = 0.002 and 0.035, respectively) and range of intensity (P = 0.014 and 0.008, respectively).
CONCLUSION: Larger thyroid tumors are more likely to be associated with transient change in voice quality following their surgical removal despite physical preservation of external and recurrent laryngeal nerves, which may persist up to 3 months. This study affirms that perturbations in voice after thyroidectomy can still exist in spite of clinical demonstration of integrity of neuromuscular function.