TY - JOUR T1 - Laryngeal and vocal alterations after thyroidectomy JO - Brazilian Journal of Otorhinolaryngology (English Edition) T2 - AU - Iyomasa,Renata Mizusaki AU - Tagliarini,José Vicente AU - Rodrigues,Sérgio Augusto AU - Tavares,Elaine Lara Mendes AU - Martins,Regina Helena Garcia SN - 18088694 M3 - 10.1016/j.bjorl.2017.08.015 DO - 10.1016/j.bjorl.2017.08.015 UR - http://www.bjorl.org.br/en-laryngeal-vocal-alterations-after-thyroidectomy-articulo-S1808869417301581 AB - IntroductionDysphonia is a common symptom after thyroidectomy. ObjectiveTo analyze the vocal symptoms, auditory-perceptual and acoustic vocal, videolaryngoscopy, the surgical procedures and histopathological findings in patients undergoing thyroidectomy. MethodsProspective study. Patients submitted to thyroidectomy were evaluated as follows: anamnesis, laryngoscopy, and acoustic vocal assessments. Moments: pre-operative, 1st post (15 days), 2nd post (1 month), 3rd post (3 months), and 4th post (6 months). ResultsAmong the 151 patients (130 women; 21 men). Type of surgery: lobectomy+isthmectomy n=40, total thyroidectomy n=88, thyroidectomy+lymph node dissection n=23. Vocal symptoms were reported by 42 patients in the 1st post (27.8%) decreasing to 7.2% after 6 months. In the acoustic analysis, f0 and APQ were decreased in women. Videolaryngoscopies showed that 144 patients (95.3%) had normal exams in the preoperative moment. Vocal fold palsies were diagnosed in 34 paralyzes at the 1st post, 32 recurrent laryngeal nerve (lobectomy+isthmectomy n=6; total thyroidectomy n=17; thyroidectomy+lymph node dissection n=9) and 2 superior laryngeal nerve (lobectomy+isthmectomy n=1; Total thyroidectomy+lymph node dissection n=1). After 6 months, 10 patients persisted with paralysis of the recurrent laryngeal nerve (6.6%). Histopathology and correlation with vocal fold palsy: colloid nodular goiter (n=76; palsy n=13), thyroiditis (n=8; palsy n=0), and carcinoma (n=67; palsy n=21). ConclusionVocal symptoms, reported by 27.8% of the patients on the 1st post decreased to 7% in 6 months. In the acoustic analysis, f0 and APQ were decreased. Transient paralysis of the vocal folds secondary to recurrent and superior laryngeal nerve injury occurred in, respectively, 21% and 1.3% of the patients, decreasing to 6.6% and 0% after 6 months. ER -