PMID- 32026467 OWN - NLM STAT- MEDLINE DCOM- 20201225 LR - 20201225 IS - 1365-2168 (Electronic) IS - 0007-1323 (Linking) VI - 107 IP - 6 DP - 2020 May TI - Recurrence following hemithyroidectomy in patients with low- and intermediate-risk papillary thyroid carcinoma. PG - 687-694 LID - 10.1002/bjs.11430 [doi] AB - BACKGROUND: This study evaluated the incidence, patterns and risk factors for recurrence after hemithyroidectomy in patients with low- and intermediate-risk papillary thyroid carcinoma (PTC), and verified the predictive role of the risk staging systems in current use. METHODS: The clinicopathological characteristics and risk categories were analysed according to recurrence in patients who underwent hemithyroidectomy for low- and intermediate-risk conventional PTC, and were followed up for at least 24 months. Five risk staging systems were used to stratify risk: the 2015 American Thyroid Association (ATA) system; Age, Metastases, Extent and Size (AMES) system; Metastases, Age, Complete resection, Invasion and Size (MACIS) system; Grade, Age, Metastases, Extent and Size (GAMES) system; and the eighth AJCC system. RESULTS: The study included 561 patients; 93.9 per cent of the study population (527 of 561) had a papillary thyroid microcarcinoma 1 cm or smaller in size. At a mean follow-up of 83 months, 25 patients (4.5 per cent) had recurrence; among these patients, 23 (92%) presented with a remaining thyroid lobe. Multifocality was significantly associated with recurrence in univariable and multivariable analyses (adjusted hazard ratio 3.16, 95 per cent c.i. 1.25 to 7.98; P = 0.015). Disease-free survival (DFS) varied according to multifocality (P = 0.010). The five risk staging systems were not associated with recurrence, and their Harrell's C-index ranged from 0.500 to 0.531. DFS rates did not differ between the risk categories in each system. CONCLUSION: Although the recurrence rate after hemithyroidectomy in patients with low- and intermediate-risk PTC was low, meticulous follow-up focusing on the remaining thyroid lobe is needed for early detection and timely management of recurrence. The risk scoring systems in current use have no predictive role in these patients. CI - (c) 2020 BJS Society Ltd Published by John Wiley & Sons Ltd. FAU - Ahn, D AU - Ahn D AUID- ORCID: 0000-0002-4977-7406 AD - Department of Otolaryngology - Head and Neck Surgery, Kyungpook National University, 130 Dongdeok-ro, Jung-gu, Daegu, 41944, Korea. FAU - Lee, G J AU - Lee GJ AD - Department of Otolaryngology - Head and Neck Surgery, Kyungpook National University, 130 Dongdeok-ro, Jung-gu, Daegu, 41944, Korea. FAU - Sohn, J H AU - Sohn JH AD - Department of Otolaryngology - Head and Neck Surgery, Kyungpook National University, 130 Dongdeok-ro, Jung-gu, Daegu, 41944, Korea. LA - eng PT - Journal Article DEP - 20200205 PL - England TA - Br J Surg JT - The British journal of surgery JID - 0372553 SB - IM MH - Adolescent MH - Adult MH - Aged MH - Clinical Decision Rules MH - Follow-Up Studies MH - Humans MH - Incidence MH - Male MH - Middle Aged MH - *Neoplasm Recurrence, Local/diagnosis/epidemiology/etiology/pathology MH - Neoplasm Staging MH - Predictive Value of Tests MH - Retrospective Studies MH - Risk Assessment MH - Risk Factors MH - Survival Analysis MH - Thyroid Cancer, Papillary/mortality/pathology/*surgery MH - Thyroid Neoplasms/mortality/pathology/*surgery MH - *Thyroidectomy/methods MH - Treatment Outcome MH - Young Adult EDAT- 2020/02/07 06:00 MHDA- 2020/12/29 06:00 CRDT- 2020/02/07 06:00 PHST- 2019/07/08 00:00 [received] PHST- 2019/10/01 00:00 [revised] PHST- 2019/10/19 00:00 [accepted] PHST- 2020/02/07 06:00 [pubmed] PHST- 2020/12/29 06:00 [medline] PHST- 2020/02/07 06:00 [entrez] AID - 10.1002/bjs.11430 [doi] PST - ppublish SO - Br J Surg. 2020 May;107(6):687-694. doi: 10.1002/bjs.11430. Epub 2020 Feb 5.