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Voice and throat dysfunction may occur in patients after thyroidectomy, even in the absence of apparent laryngeal nerve injury. We evaluated the impact of thyroid surgery on voice and throat function using perceptive, objective, and subjective measurements in a prospectively enrolled and serially followed cohort of thyroid cancer patients. We assessed the impact of surgical extent and intensity of postoperative treatment, including addition radioactive iodine treatment (RIT), on these functions.

Consenting patients undergoing thyroid lobectomy (TL; n = 33), total thyroidectomy (TT; n = 41), or TT plus RIT (n = 81), none of whom had laryngeal nerve dysfunction perioperatively, were enrolled prospectively. All underwent comprehensive functional evaluations, including perceptive voice quality using the grade, roughness, breathiness, asthenia, strain (GRBAS) scale and acoustic voice analysis with …