PART 1. Post - thyroidectomy syndrome(PTS) 1 01 Anatomical perspectives 3 02 Hormonal perspectives 25 03 Neuropsychological perspectives of PTS 33
PART 2. Role of the thyroid gland related structures in phonation 43 04 Role of the neck muscles in phonation -animal study- 45 05 Role of vertical laryngeal movements in pitch control -human study- 67 06 Roles of two bellies of cricothyroid muscle in pitch control -animal study- 81 07 Role of two bellies of cricothyroid muscles in speech production -human study- 97 08 Role of cricopharyngeus muscle in speech production -human study- 109
PART 3. Phonetic characteristics of thyroidectomized patients without laryngeal nerve injury 123 09 Phonetic features of hypothyroidism after thyroidectomy 125 10 Phonetic features of speech after thyroidectomy 147 11 Changes of oral vowel sounds and hyoid bone movements after thyroidectomy 163 12 Evaluation of swallowing function after thyroidectomy 179 13 Cepstral analysis of voice in patients with thyroidectomy 193
PART 4. Phonetic characteristics of thyroidectomized patients with laryngeal nerve injury 207 14 Endoscopic features of unilateral vocal fold paralysis 209 15 Diplophonia in unilateral vocal fold paralysis 225 16 Antero-posterior medialization thyroplastyfor unilateral vocal fold paralysis 245 17 Phonetic features in patients with bilateral vocal fold paralysis without tracheotomy 259
PART 5. Non-recurrent laryngeal nerves 275 18 Travelling characteristics of the non-recurrent laryngeal nerves 277 19 Coexistence of non-recurrent laryngeal nerves with inferior laryngeal nerves 295
PART 6. Others 307 20 Phonetic characteristics of patients with an ectopic lingual thyroid 309 21 Chyle leakages and characteristics of lymphatics in the central neck area after thyroidectomy 325 22 New diagnostic tool for thyroid cancer using Electrical Impedance Spectroscopy(EIS) 337