Risk factors and prognosis of voice disorders after surgical treatment of thyroid and parathyroid diseases.

AIM To analyze risk factors and prognosis of voice disorders after surgical treatment of thyroid and parathyroid diseases. MATERIAL AND METHODS There were 1272 patients who were operated in the endocrine surgery department for the period from January 1, 2016 to April 30, 2017. We studied the incidence of VF paresis, VF paralysis, and persistent dysphonia as clinical outcomes. Potential risk factors have to be analyzed were sex and age of patients, BMI, diagnosis, surgical technique, thyroid volume, experience of the surgeon and assistant, use of intraoperative neuromonitoring, etc. RESULTS: Significant relationships of risk factors with various complications of thyroid surgery were found. In logistic regression analysis, the independent predictors of complications were the following: 1) for VF paresis - extent of surgery and thyroid volume; 2) for VF paralysis - sex, extent of surgery and thyroid volume; 3) for persistent postoperative dysphonia - age and thyroid volume. CONCLUSION The correlation of various risk factors with development of VF paresis, VF paralysis and persistent dysphonia were identified in patients undergoing thyroid and parathyroid surgery.