Lobectomy in follicular thyroid neoplasms' treatment

• Type: Article in International Scientific Journal
• Date: 2013

Authors

Antunes, CM (Author) Other; Gomes AT (Author) FMUP

Journal

Title: International Journal of Surgery

Vol. 11

Pages: 928-931

ISSN: 1743-9191

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 10 Citations

Scopus - 12 Citations

Other information

Authenticus ID: P-008-G7V

DOI: 10.1016/j.ijsu.2013.07.004

Abstract (EN): Background: The purpose of this study is to evaluate the suitability of lobectomy with isthmectomy (LwI) in treatment of Follicular Thyroid Neoplasms (FTN), considering malignancy incidence and postoperative complications. Methods: 192 patients (165 females; 27 males) who underwent LwI for FTN from 01/2005 to 12/2007 were retrospectively evaluated: clinical and pathological features, surgical complications and five year outcome. Inclusion criteria were cytological Bethesda category III and IV or histological follicular adenoma/ carcinoma or follicular variant of papillary carcinoma). Metastatic disease or previous thyroidal surgery patients were excluded. Results: Mean age was 48.68 +/- 14.93 yrs. Overall malignancy occurred in 88 patients (45.83%) and 80 (41.67%) underwent thyroidectomy completion (TC), mainly by index lesion's malignancy. Forty-one (21.35%) in LwI and 31 (38.75%) in TC specimens had associated malignancy, mainly papillary microcarcinomas. High preoperative Thyroid-Stimulating Hormone (TSH), histological multinodularity and, in cytology category IV, younger age, were significantly associated to malignancy. Permanent recurrent laryngeal nerve lesion occurred in 0.58% in Lwl and 1.52% in TC, and temporary dysphonia occurred in 9.25% and 6.06% (LwI and TC respectively). No LwI patients presented hypoparathyroidism whereas 3.03% in TC had temporary symptoms. In LwI, 36.70% developed hypothyroidism. Higher preoperative TSH was associated with hypothyroidism development. Conclusions: LwI was inappropriate in 40.10% patients with malignancy who required TC and 23.12% had no functional benefit because post-LwI hypothyroidism. Nodular relapse was reported in at least 23/113 LwI patients (20.35%). We propose total thyroidectomy for patients with FTN preoperative TSH higher than 2.16 mU/L and, in Bethesda category IV, less than 39.5 yrs.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4