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Violetis O, Konstantakou P, Spyroglou A, Xydakis A, Kekis PB, Tseleni S, Kolomodi D, Konstadoulakis M, Mastorakos G, Theochari M, Aller J, Alexandraki KI. The Long Journey towards Personalized Targeted Therapy in Poorly Differentiated Thyroid Carcinoma (PDTC): A Case Report and Systematic Review. J Pers Med 2024; 14:654. [PMID: 38929875 PMCID: PMC11205159 DOI: 10.3390/jpm14060654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 06/01/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024] Open
Abstract
BACKGROUND Poorly differentiated thyroid carcinoma (PDTC) has an intermediate prognosis between indolent well-differentiated thyroid carcinoma (TC) and anaplastic carcinoma. Herein, we present a case report with a PDTC component, along with a systematic review of the literature. CASE REPORT We report a case of a 45-year-old man diagnosed with a PDTC component, along with hobnail and tall-cell variant features positive for BRAFV600E mutation, after a total thyroidectomy and neck dissection. Radioactive iodine (RAI)-131 therapy was applied, but an early recurrence led to complementary surgeries. The anti-Tg rise, the presence of new lymph nodes, and the negative whole-bodyradioiodine scan were suggestive of a radioiodine-resistant tumor. Lenvatinib, sorafenib, dabrafenib/trametinib, cabozantinib and radiotherapy were all administered, controlling the tumor for a period of time before the patient ultimately died post-COVID infection. Systematic Review: We searched PubMed, Scopus, and WebofScience to identify studies reporting clinicopathological characteristics, molecular marker expression, and management of non-anaplastic TC with any proportion of PDTC in adult patients. Of the 2007 records retrieved, 82were included in our review (PROSPERO-ID545847). CONCLUSIONS Our case, together with the systematic review, imply that a combination of molecular-targetedtreatments may be safe and effective in patients with RAI-resistantBRAF-mutated advanced PDTC when surgery has failed to control tumor progression.
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Affiliation(s)
- Odysseas Violetis
- 2nd Department of Surgery, Aretaieio Athens Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece (A.S.)
| | - Panagiota Konstantakou
- 2nd Department of Surgery, Aretaieio Athens Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece (A.S.)
| | - Ariadni Spyroglou
- 2nd Department of Surgery, Aretaieio Athens Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece (A.S.)
| | - Antonios Xydakis
- 2nd Department of Surgery, Aretaieio Athens Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece (A.S.)
| | | | - Sofia Tseleni
- Department of Pathology, Medical School, University of Athens, 11527 Athens, Greece;
| | - Denise Kolomodi
- European Neuroendocrine Tumor Society (ENETS) Center of Excellence, Ekpa-Laiko Center, 11527 Athens, Greece;
- IATROPOLIS Private Medical Center, 11521 Athens, Greece
| | - Manousos Konstadoulakis
- 2nd Department of Surgery, Aretaieio Athens Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece (A.S.)
| | - George Mastorakos
- 2nd Department of Surgery, Aretaieio Athens Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece (A.S.)
| | - Maria Theochari
- Department of Oncology, Ippokrateio Athens General Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece;
| | - Javier Aller
- Endocrinology Department, Hospital Universitario Puerta de Hierro Majadahonda, 28222 Madrid, Spain;
| | - Krystallenia I. Alexandraki
- 2nd Department of Surgery, Aretaieio Athens Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece (A.S.)
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Boucai L, Zafereo M, Cabanillas ME. Thyroid Cancer: A Review. JAMA 2024; 331:425-435. [PMID: 38319329 DOI: 10.1001/jama.2023.26348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
Importance Approximately 43 720 new cases of thyroid carcinoma are expected to be diagnosed in 2023 in the US. Five-year relative survival is approximately 98.5%. This review summarizes current evidence regarding pathophysiology, diagnosis, and management of early-stage and advanced thyroid cancer. Observations Papillary thyroid cancer accounts for approximately 84% of all thyroid cancers. Papillary, follicular (≈4%), and oncocytic (≈2%) forms arise from thyroid follicular cells and are termed well-differentiated thyroid cancer. Aggressive forms of follicular cell-derived thyroid cancer are poorly differentiated thyroid cancer (≈5%) and anaplastic thyroid cancer (≈1%). Medullary thyroid cancer (≈4%) arises from parafollicular C cells. Most cases of well-differentiated thyroid cancer are asymptomatic and detected during physical examination or incidentally found on diagnostic imaging studies. For microcarcinomas (≤1 cm), observation without surgical resection can be considered. For tumors larger than 1 cm with or without lymph node metastases, surgery with or without radioactive iodine is curative in most cases. Surgical resection is the preferred approach for patients with recurrent locoregional disease. For metastatic disease, surgical resection or stereotactic body irradiation is favored over systemic therapy (eg, lenvatinib, dabrafenib). Antiangiogenic multikinase inhibitors (eg, sorafenib, lenvatinib, cabozantinib) are approved for thyroid cancer that does not respond to radioactive iodine, with response rates 12% to 65%. Targeted therapies such as dabrafenib and selpercatinib are directed to genetic mutations (BRAF, RET, NTRK, MEK) that give rise to thyroid cancer and are used in patients with advanced thyroid carcinoma. Conclusions Approximately 44 000 new cases of thyroid cancer are diagnosed each year in the US, with a 5-year relative survival of 98.5%. Surgery is curative in most cases of well-differentiated thyroid cancer. Radioactive iodine treatment after surgery improves overall survival in patients at high risk of recurrence. Antiangiogenic multikinase inhibitors and targeted therapies to genetic mutations that give rise to thyroid cancer are increasingly used in the treatment of metastatic disease.
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Affiliation(s)
- Laura Boucai
- Department of Medicine, Division of Endocrinology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Mark Zafereo
- Department of Head and Neck Surgery, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Maria E Cabanillas
- Department of Endocrine Neoplasia and Hormonal Disorders, University of Texas MD Anderson Cancer Center, Houston, Texas
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Ilera V, Califano I, Cavallo A, Faure E, Vázquez A, Pitoia F. Is radioiodine ablation with 1.1 GBq (30 mCi) 131I necessary in low-risk thyroid cancer patients? Results from a long-term follow-up prospective study. Endocrine 2023; 80:606-611. [PMID: 36988853 DOI: 10.1007/s12020-023-03306-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 01/10/2023] [Indexed: 03/30/2023]
Abstract
BACKGROUND In patients with low-risk differentiated thyroid cancer (DTC), remnant ablation with radioiodine (RA) after total thyroidectomy (TT) is controversial. No benefits have been demonstrated in terms of mortality or disease-free survival. Recent evidence found that RA did not improve mid-term outcomes. PURPOSE To evaluate initial response to treatment and long-term follow-up status in low-risk DTC patients after TT vs. TT + RA with 131I 1.11 GBq (30 mCi). METHODS Prospective multicenter non-randomized study; 174 low-risk DTC that underwent TT were recruited an divided in two groups according to RA (87 ablated and 87 non-ablated). Response to treatment was evaluated at 6-18 months after thyroidectomy and at the end of follow-up with measurements of thyroglobulin, and anti-thyroglobulin antibodies levels, and neck ultrasonography. RESULTS Baseline characteristics of both groups were similar. Ablated patients: median age 45.5 years, 84% females, 95.4% papillary thyroid carcinoma (PTC), mean tumor size 16 mm; non-ablated: median age 45 years, 88.5% females, 96.6% PTC, mean tumor size 14 mm. Response to initial treatment was similar between both groups, with < 2% of structural incomplete response. Final status was evaluated in 139 cases (median follow-up of 60 months). Among ablated patients, 82.8% had no evidence of disease (NED), 12% had an indeterminate response (IR) and 5% a biochemical incomplete response (BIR). Non-ablated patients had NED in 90%, IR in 8.7% and BIR in 1.2%. No statistical difference was found between groups (p = 0.29). No patient had evidence of structural disease at the end of follow-up. CONCLUSIONS Our findings support the recommendation against routine RA in low-risk DTC patients.
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Affiliation(s)
- Verónica Ilera
- Thyroid Department of Sociedad Argentina de Endocrinología y Metabolismo, Díaz Vélez 3889, (C1200AAF), Ciudad Autónoma de Buenos Aires, Argentina
| | - Inés Califano
- Thyroid Department of Sociedad Argentina de Endocrinología y Metabolismo, Díaz Vélez 3889, (C1200AAF), Ciudad Autónoma de Buenos Aires, Argentina
| | - Andrea Cavallo
- Thyroid Department of Sociedad Argentina de Endocrinología y Metabolismo, Díaz Vélez 3889, (C1200AAF), Ciudad Autónoma de Buenos Aires, Argentina
| | - Eduardo Faure
- Thyroid Department of Sociedad Argentina de Endocrinología y Metabolismo, Díaz Vélez 3889, (C1200AAF), Ciudad Autónoma de Buenos Aires, Argentina
| | - Adriana Vázquez
- Thyroid Department of Sociedad Argentina de Endocrinología y Metabolismo, Díaz Vélez 3889, (C1200AAF), Ciudad Autónoma de Buenos Aires, Argentina
| | - Fabián Pitoia
- Thyroid Department of Sociedad Argentina de Endocrinología y Metabolismo, Díaz Vélez 3889, (C1200AAF), Ciudad Autónoma de Buenos Aires, Argentina.
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Valerio L, Maino F, Castagna MG, Pacini F. Radioiodine therapy in the different stages of differentiated thyroid cancer. Best Pract Res Clin Endocrinol Metab 2023; 37:101703. [PMID: 36151009 DOI: 10.1016/j.beem.2022.101703] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Differentiated thyroid cancer is the most frequent type of thyroid cancer with an increasing incidence in the last decades. The initial management is represented by surgical treatment followed by radioactive iodine therapy that includes remnant ablation, adjuvant treatment or treatment of metastatic disease. Radioactive iodine treatment is performed only in selected cases based on the risk of recurrence and mortality during follow up, according to American Joint Committee on Cancer Union for international Cancer Control Tumor, Node, Metastasis (AJCC/TNM) staging system and the 2015 American Thyroid Association (ATA) risk stratification system. This article will review the key factors to consider when planning radioactive iodine therapy in differentiated thyroid cancer patients after surgery and during follow up.
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Affiliation(s)
- Laura Valerio
- Department of Medical, Surgical and Neurological Sciences, University of Siena, Siena, Italy - Viale Bracci 16, 53100, Siena, Italy.
| | - Fabio Maino
- Department of Medical, Surgical and Neurological Sciences, University of Siena, Siena, Italy - Viale Bracci 16, 53100, Siena, Italy.
| | - Maria Grazia Castagna
- Department of Medical, Surgical and Neurological Sciences, University of Siena, Siena, Italy - Viale Bracci 16, 53100, Siena, Italy.
| | - Furio Pacini
- Department of Medical, Surgical and Neurological Sciences, University of Siena, Siena, Italy - Viale Bracci 16, 53100, Siena, Italy.
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Ward LS, Scheffel RS, Hoff AO, Ferraz C, Vaisman F. Treatment strategies for low-risk papillary thyroid carcinoma: a position statement from the Thyroid Department of the Brazilian Society of Endocrinology and Metabolism (SBEM). ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2022; 66:522-532. [PMID: 36074944 PMCID: PMC10697645 DOI: 10.20945/2359-3997000000512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 07/21/2022] [Indexed: 06/15/2023]
Abstract
Increasingly sensitive diagnostic methods, better understanding of molecular pathophysiology, and well-conducted prospective studies have changed the current approach to patients with thyroid cancer, requiring the implementation of individualized management. Most patients with papillary thyroid carcinoma (PTC) are currently considered to have a low risk of mortality and disease persistence/recurrence. Consequently, current treatment recommendations for these patients include less invasive or intensive therapies. We used the most recent evidence to prepare a position statement providing guidance for decisions regarding the management of patients with low-risk PTC (LRPTC). This document summarizes the criteria defining LRPTC (including considerations regarding changes in the TNM staging system), indications and contraindications for active surveillance, and recommendations for follow-up and surgery. Active surveillance may be an appropriate initial choice in selected patients, and the criteria to recommend this approach are detailed. A section is dedicated to the current evidence regarding lobectomy versus total thyroidectomy and the potential pitfalls of each approach, considering the challenges during long-term follow-up. Indications for radioiodine (RAI) therapy are also addressed, along with the benefits and risks associated with this treatment, patient preparation, and dosage. Finally, this statement presents the best follow-up strategies for LRPTC after lobectomy and total thyroidectomy with or without RAI.
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Affiliation(s)
- Laura Sterian Ward
- Laboratório de Genética Molecular do Câncer, Faculdade de Ciências Médicas, Universidade Estadual de Campinas (Unicamp), Campinas, SP, Brasil
| | - Rafael Selbach Scheffel
- Unidade de Tireoide, Hospital de Clínicas de Porto Alegre, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
- Departamento de Farmacologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - Ana O Hoff
- Unidade de Oncologia Endócrina, Instituto do Câncer do Estado de São Paulo (Icesp), Universidade de São Paulo (USP), São Paulo, SP, Brasil
| | - Carolina Ferraz
- Divisão de Endocrinologia, Departamento de Medicina, Irmandade da Santa Casa de Misericórdia de São Paulo, São Paulo, SP, Brasil; Faculdade de Ciências Médicas da Santa Casa, São Paulo, SP, Brasil
| | - Fernanda Vaisman
- Serviço de Oncologia Endócrina, Instituto Nacional do Câncer do Rio de Janeiro (Inca), Rio de Janeiro, RJ, Brasil,
- Faculdade de Medicina, Serviço de Endocrinologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
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Ahmadi S, Coleman A, de Morais NS, Landa I, Pappa T, Kang A, Kim MI, Marqusee E, Alexander EK. Clinical experience following implementation of routine SPECT-CT imaging following 131-iodine administration for thyroid cancer. Endocr Connect 2022; 11:e210371. [PMID: 35521806 PMCID: PMC9175585 DOI: 10.1530/ec-21-0371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 04/22/2022] [Indexed: 11/18/2022]
Abstract
Background Planar scintigraphy has long been indicated in patients receiving I-131 therapy for thyroid cancer to determine the anatomic location of metastases. We studied our experience upon implementing additional single-photon emission (SPECT)-CT scanning in these patients. Method We performed a retrospective study of consecutive adult patients with newly diagnosed thyroid cancer treated with I-131 between 2011 and 2017. Radiologic findings detected with planar scintigraphy alone vs those identified with SPECT-CT scanning were primary endpoints. Result In this study, 212 consecutive patients with thyroid cancer were analyzed in two separate cohorts (107 planar scintigraphy alone and 105 planar scintigraphy with SPECT-CT). The addition of SPECT-CT resulted in more findings, both thyroid-related and incidental. However, we identified only 3 of 21 cases in which SPECT-CT provided an unequivocal additional benefit by changing clinical management beyond planar scintigraphy alone. No difference in the detection of distant metastatic disease or outcome was identified between cohorts. Conclusion Synergistic SPECT-CT imaging in addition to planar nuclear scintigraphy adds limited clinical value to thyroid cancer patients harboring a low risk of distant metastases, while frequently identifying clinically insignificant findings. These data from a typical cohort of patients receiving standard thyroid cancer care provide insight into the routine use of SPECT-CT in such patients.
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Affiliation(s)
- Sara Ahmadi
- Thyroid Section Brigham & Women’s Hospital & Harvard Medical School, Boston, Massachusetts, USA
| | - Alexandra Coleman
- Thyroid Section Brigham & Women’s Hospital & Harvard Medical School, Boston, Massachusetts, USA
| | - Nathalie Silva de Morais
- Thyroid Section Brigham & Women’s Hospital & Harvard Medical School, Boston, Massachusetts, USA
- Endocrinology Service, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - Iñigo Landa
- Thyroid Section Brigham & Women’s Hospital & Harvard Medical School, Boston, Massachusetts, USA
| | - Theodora Pappa
- Thyroid Section Brigham & Women’s Hospital & Harvard Medical School, Boston, Massachusetts, USA
| | - Alex Kang
- Thyroid Section Brigham & Women’s Hospital & Harvard Medical School, Boston, Massachusetts, USA
| | - Matthew I Kim
- Thyroid Section Brigham & Women’s Hospital & Harvard Medical School, Boston, Massachusetts, USA
| | - Ellen Marqusee
- Thyroid Section Brigham & Women’s Hospital & Harvard Medical School, Boston, Massachusetts, USA
| | - Erik K Alexander
- Thyroid Section Brigham & Women’s Hospital & Harvard Medical School, Boston, Massachusetts, USA
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Pasqual E, Schonfeld S, Morton LM, Villoing D, Lee C, Berrington de Gonzalez A, Kitahara CM. Association Between Radioactive Iodine Treatment for Pediatric and Young Adulthood Differentiated Thyroid Cancer and Risk of Second Primary Malignancies. J Clin Oncol 2022; 40:1439-1449. [PMID: 35044839 PMCID: PMC9061144 DOI: 10.1200/jco.21.01841] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
PURPOSE Since the 1980s, both the incidence of differentiated thyroid cancer (DTC) and use of radioactive iodine (RAI) treatment increased markedly. RAI has been associated with an increased risk of leukemia, but risks of second solid malignancies remain unclear. We aimed to quantify risks of second malignancies associated with RAI treatment for DTC in children and young adults, who are more susceptible than older adults to the late effects of radiation. METHODS Using nine US SEER cancer registries (1975-2017), we estimated relative risks (RRs) for solid and hematologic malignancies associated with RAI (yes v no or unknown) using Poisson regression among ≥ 5- and ≥ 2-year survivors of nonmetastatic DTC diagnosed before age 45 years, respectively. RESULTS Among 27,050 ≥ 5-year survivors (median follow-up = 15 years), RAI treatment (45%) was associated with increased risk of solid malignancies (RR = 1.23; 95% CI, 1.11 to 1.37). Risks were increased for uterine cancer (RR = 1.55; 95% CI, 1.03 to 2.32) and nonsignificantly for cancers of the salivary gland (RR = 2.15; 95% CI, 0.91 to 5.08), stomach (RR = 1.61; 95% CI, 0.70 to 3.69), lung (RR = 1.42; 95% CI, 0.97 to 2.08), and female breast (RR = 1.18; 95% CI, 0.99 to 1.40). Risks of total solid and female breast cancer, the most common cancer type, were highest among ≥ 20-year DTC survivors (RRsolid = 1.47; 95% CI, 1.24 to 1.74; RRbreast = 1.46; 95% CI, 1.10 to 1.95). Among 32,171 ≥ 2-year survivors, RAI was associated with increased risk of hematologic malignancies (RR = 1.51; 95% CI, 1.08 to 2.01), including leukemia (RR = 1.92; 95% CI, 1.04 to 3.56). We estimated that 6% of solid and 14% of hematologic malignancies in pediatric and young adult DTC survivors may be attributable to RAI. CONCLUSION In addition to leukemia, RAI treatment for childhood and young-adulthood DTC was associated with increased risks of several solid cancers, particularly more than 20 years after exposure, supporting the need for long-term surveillance of these patients.
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Affiliation(s)
- Elisa Pasqual
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD
| | - Sara Schonfeld
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD
| | - Lindsay M. Morton
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD
| | | | - Choonsik Lee
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD
| | | | - Cari M. Kitahara
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD,Cari M. Kitahara, PhD, MHS, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Dr, Rm. 7E-456, Bethesda, MD 20892; e-mail:
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8
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Juweid ME, Rabadi NJ, Tulchinsky M, Aloqaily M, Al-Momani A, Arabiat M, Abu Ain G, Al Hawari H, Al-Momani M, Mismar A, Abulaban A, Taha I, Alhouri A, Zayed A, Albsoul N, Al-Abbadi MA. Assessing potential impact of 2015 American Thyroid Association guidelines on community standard practice for I-131 treatment of low-risk differentiated thyroid cancer: case study of Jordan. Endocrine 2021; 73:633-640. [PMID: 33772746 DOI: 10.1007/s12020-021-02698-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Accepted: 03/12/2021] [Indexed: 12/24/2022]
Abstract
OBJECTIVES The 2015 American Thyroid Association (ATA) guidelines called for significantly more selective 131I therapy in patients with low-risk differentiated thyroid cancer (DTC). We hypothesized that application of these guidelines would significantly reduce the 131I activity utilized by an academic tertiary hospital in Jordan. METHODS All DTC patients managed at Jordan University Hospital (JUH) between 1/2009 and 6/2019 were classified according to the 2015 ATA risk category and 131I activity was assigned accordingly. The actual 131I activity administered was compared with that recommended by the 2015 ATA guidelines. RESULTS In total, 135/182 DTC patients (74.2%) managed at JUH underwent 131I therapy. Of those, 58 (43%) had ATA low-, 58 (43%) intermediate-, and 19 (14%) high-risk disease. The low-, intermediate-, and high-risk DTC patients received an average (±SD) initial 131I activity of 3.53 ± 0.95, 4.40 ± 1.49, and 5.06 ± 2.52 GBq, respectively. Withholding 131I therapy altogether in the 2015 ATA low-risk patients would result in decreasing the 131I activity in the overall patient population by 37%. Withholding 131I therapy only in low-risk papillary thyroid microcarcinomas while administering 1.11 GBq of 131I to other low-risk patients would result in 28% reduction of 131I. CONCLUSION This study demonstrates a significant reduction in 131I therapeutic activity that would be given to DTC patients in an academic tertiary setting in Jordan, following acceptance of the 2015 ATA recommendations. Institutions that adopted the 2015 ATA guidance should measure outcomes in comparison to their historical controls and report those findings, while long-term results of randomized controlled trials are forthcoming.
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Affiliation(s)
- Malik E Juweid
- Division of Nuclear Medicine/Department of Radiology and Nuclear Medicine, University of Jordan, Amman, Jordan
| | - Nidal J Rabadi
- Division of Nuclear Medicine/Department of Radiology and Nuclear Medicine, University of Jordan, Amman, Jordan
| | - Mark Tulchinsky
- Department of Radiology, Penn State Health, Hershey, PA, USA.
| | - Mohammed Aloqaily
- Division of Nuclear Medicine/Department of Radiology and Nuclear Medicine, University of Jordan, Amman, Jordan
| | - Ahmad Al-Momani
- Division of Nuclear Medicine/Department of Radiology and Nuclear Medicine, University of Jordan, Amman, Jordan
| | - Majd Arabiat
- Division of Endocrinology, Department of Medicine, University of Jordan, Amman, Jordan
| | - Gassem Abu Ain
- Division of Nuclear Medicine/Department of Radiology and Nuclear Medicine, University of Jordan, Amman, Jordan
| | - Hussam Al Hawari
- Division of Endocrinology, Department of Medicine, University of Jordan, Amman, Jordan
| | - Munther Al-Momani
- Division of Endocrinology, Department of Medicine, University of Jordan, Amman, Jordan
| | - Ayman Mismar
- Department of Special Surgery, University of Jordan, Amman, Jordan
| | - Amr Abulaban
- Division of Nuclear Medicine/Department of Radiology and Nuclear Medicine, University of Jordan, Amman, Jordan
| | - Ibrahim Taha
- Division of Nuclear Medicine/Department of Radiology and Nuclear Medicine, University of Jordan, Amman, Jordan
| | - Abdullah Alhouri
- Division of Nuclear Medicine/Department of Radiology and Nuclear Medicine, University of Jordan, Amman, Jordan
| | - Ayman Zayed
- Division of Endocrinology, Department of Medicine, University of Jordan, Amman, Jordan
| | - Nader Albsoul
- Department of Special Surgery, University of Jordan, Amman, Jordan
| | - Mousa A Al-Abbadi
- Department of Histopathology, Microbiology and Forensic Medicine, University of Jordan, Amman, Jordan
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Albano D, Dondi F, Zilioli V, Panarotto MB, Galani A, Cappelli C, Bertagna F, Giubbini R, Casella C. The role of Hashimoto thyroiditis in predicting radioiodine ablation efficacy and prognosis of low to intermediate risk differentiated thyroid cancer. Ann Nucl Med 2021; 35:1089-1099. [PMID: 34152569 PMCID: PMC8408084 DOI: 10.1007/s12149-021-01644-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 06/13/2021] [Indexed: 12/31/2022]
Abstract
OBJECTIVE The baseline treatment of differentiated thyroid cancer (DTC) consists of thyroidectomy followed by postoperative risk-adapted radioiodine therapy (RAIT) when indicated. The choice of most appropriate RAI activities to administer with the aim to reach an efficient remnant ablation and reduce the risk of recurrence is yet an open issue and the detection of basal factors that may predict treatment response seems fundamental. The aim of this study was to investigate the potential role of Hashimoto thyroiditis (HT) in predicting 1-year and 5-year treatment response after RAIT and prognosis. METHODS We retrospectively included 314 consecutive patients (174 low-risk and 140 intermediate-risk) who received thyroidectomy plus RAIT. One-year and 5-year disease status was evaluated according to 2015 ATA categories response based upon biochemical and structural findings. RESULTS HT was reported histopathologically in 120 patients (38%). DTC patients with concomitant HT received a higher number of RAITs and cumulative RAI activities. Initial RAIT reached an excellent response in 63% after one year and 84% after 5 years. The rate of excellent response one year and 5-year after first RAIT was significantly lower in HT groups, compared to not HT (p < 0.001). Instead, HT did not have a prognostic role considering PFS and OS; while stimulate thyroglobulin (sTg) at ablation was significantly related to survival. CONCLUSIONS HT may affect the efficacy of RAIT in low to intermediate risk DTC, particularly reducing the successful rate of excellent response after RAIT. Instead, HT did not have a prognostic impact such as stimulated sTg.
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Affiliation(s)
- Domenico Albano
- Nuclear Medicine, University of Brescia and ASST Spedali Civili Brescia, Brescia, Italy.
| | - Francesco Dondi
- Nuclear Medicine, University of Brescia and ASST Spedali Civili Brescia, Brescia, Italy
| | - Valentina Zilioli
- Nuclear Medicine Department, ASST Spedali Civili Brescia, Brescia, Italy
| | | | - Alessandro Galani
- Department of Clinical and Experimental Sciences, Surgical Clinic, University of Brescia, Brescia, Italy
| | - Carlo Cappelli
- Department of Clinical and Experimental Sciences, SSd Medicina ad Indirizzo Endocrino-Metabolico, University of Brescia, Brescia, Italy
| | - Francesco Bertagna
- Nuclear Medicine, University of Brescia and ASST Spedali Civili Brescia, Brescia, Italy
| | - Raffaele Giubbini
- Nuclear Medicine, University of Brescia and ASST Spedali Civili Brescia, Brescia, Italy
| | - Claudio Casella
- Department of Molecular and Translation Medicine, Surgical Clinic, University of Brescia, Brescia, Italy
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10
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Lubitz CC, Kiernan CM, Toumi A, Zhan T, Roth MY, Sosa JA, Tuttle RM, Grubbs EG. Patient Perspectives on the Extent of Surgery and Radioactive Iodine Treatment for Low-Risk Differentiated Thyroid Cancer. Endocr Pract 2021; 27:383-389. [PMID: 33840638 PMCID: PMC10028733 DOI: 10.1016/j.eprac.2021.01.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Accepted: 01/07/2021] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To understand patient perspective regarding recommended changes in the 2015 American Thyroid Association (ATA) guidelines. Specifically, in regard to active surveillance (AS) of some small differentiated thyroid cancer (DTC), performance of less extensive surgery for low-risk DTC, and more selective administration of radioactive iodine (RAI). METHODS An online survey was disseminated to thyroid cancer patient advocacy organizations and members of the ATA to distribute to the patients. Data were collected on demographic and treatment information, and patient experience with DTC. Patients were asked "what if" scenarios on core topics, including AS, extent of surgery, and indications for RAI. RESULTS Survey responses were analyzed from 1546 patients with DTC: 1478 (96%) had a total thyroidectomy, and 1167 (76%) underwent RAI. If there was no change in the overall cancer outcome, 606 (39%) of respondents would have considered lobectomy over total thyroidectomy, 536 (35%) would have opted for AS, and 638 (41%) would have chosen to forego RAI. Moreover, (774/1217) 64% of respondents wanted more time with their clinicians when making decisions about the extent of surgery. A total of 621/1167 of patients experienced significant side effects with RAI, and 351/1167 of patients felt that the risks of treatment were not well explained. 1237/1546 (80%) of patients felt that AS would not be overly burdensome, and quality of life was the main reason cited for choosing AS. CONCLUSION Patient perspective regarding choice in the management of low-risk DTC varies widely, and a large proportion of DTC patients would change aspects of their care if oncologic outcomes were equivalent.
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Affiliation(s)
- Carrie C Lubitz
- Massachusetts General Hospital Institute for Technology Assessment, Boston, Massachusetts; Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts.
| | - Colleen M Kiernan
- Division of Surgical Oncology and Endocrine Surgery, Vanderbilt University, Nashville, Tennessee
| | - Asmae Toumi
- Massachusetts General Hospital Institute for Technology Assessment, Boston, Massachusetts
| | - Tiannan Zhan
- Massachusetts General Hospital Institute for Technology Assessment, Boston, Massachusetts
| | - Mara Y Roth
- Department of Medicine, Division of Metabolism, Endocrinology, and Nutrition, University of Washington, Seattle Cancer Care Alliance, Seattle, Washington
| | - Julie A Sosa
- Department of Surgery, University of California San Francisco, San Francisco, California
| | - R Michael Tuttle
- Endocrinology Service, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Elizabeth G Grubbs
- Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas
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Kim K, Bae JS, Kim JS. Long-Term Oncological Outcome Comparison between Intermediate- and High-Dose Radioactive Iodine Ablation in Patients with Differentiated Thyroid Carcinoma: A Propensity Score Matching Study. Int J Endocrinol 2021; 2021:6642971. [PMID: 33708253 PMCID: PMC7929686 DOI: 10.1155/2021/6642971] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 02/09/2021] [Accepted: 02/17/2021] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Radioactive iodine (RAI) ablation is recommended for most patients with differentiated thyroid carcinoma (DTC) after total thyroidectomy (TT). We aimed to compare long-term outcomes between intermediate-dose (100 mCi) and high-dose (150 mCi) RAI ablation therapy in patients with DTC using propensity score matching analysis. METHODS This was a retrospective study of 1448 patients with DTC who underwent RAI ablation after TT. Propensity score matching was performed using the extent of operation, tumor size, extrathyroidal extension, multifocality, lymphatic invasion, vascular invasion, perineural invasion, number of positive lymph nodes (LNs), ATA risk stratification system, T stage, N stage, TNM stage, preoperative serum Tg and TgAb levels, and post-RAI serum Tg and TgAb levels. RESULTS Recurrence rates in the intermediate- and high-dose groups were 3.1% and 5.6%, respectively. After propensity score matching, LN ratio >0.22 (HR, 2.915; 95% CI, 1.228-6.918; p=0.015) and serum Tg >10 ng/mL after RAI (HR, 3.976; 95% CI, 1.839-8.595; p < 0.001) were significant predictors of recurrence. Kaplan-Meier analysis showed no significant difference in DFS before or after propensity score matching (p=0.074 and p=0.378, respectively). CONCLUSIONS Intermediate-dose RAI ablation for the adjuvant treatment of DTC is sufficient as compared to high-dose RAI ablation. Further prospective or multicenter studies should be conducted to clarify the prognosis of intermediate-dose RAI ablation.
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Affiliation(s)
- Kwangsoon Kim
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Ja Seong Bae
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jeong Soo Kim
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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12
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Forleo R, Fralassi N, Maino F, Capezzone M, Brilli L, Pilli T, Cantara S, Castagna MG. Indication for radioiodine remnant ablation in differentiated thyroid cancer patients: does 2018 Italian consensus change anything? J Endocrinol Invest 2021; 44:139-144. [PMID: 32388842 DOI: 10.1007/s40618-020-01283-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 04/28/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE We speculated that radioiodine remnant ablation (RRA) could be performed less frequently in differentiated thyroid cancer (DTC) patients, if the recommendations of the 2018 Italian Consensus (ITA) were applied in clinical practice. Therefore, we compared the ITA indications for RRA with the recommendations by the 2015 American Thyroid Association guidelines (ATA). METHODS We retrospectively evaluated 380 consecutive DTC patients treated with surgery and RRA, followed at the Section of Endocrinology, University of Siena, Italy from January 2006 to December 2019. RESULTS Using ITA a significant increase of DTC patients classified as low or high risk and a significant decrease of patients defined at intermediate risk were observed (p < 0.0001). Consequently, the percentage of patients without routinary indication for RRA (47.4%, versus 38.2%, p < 0.0001) and those with a definite indication for RRA (8.2 versus 1.8%, p < 0.0001) was significantly higher compared to ATA. Moreover, using ITA the percentage of patients with a selective use of RRA was lower in comparison to ATA (44.7% versus 60%, p < 0.0001). Nevertheless, the prevalence of distant metastases, at post-ablative whole body scan, in patients without indication for RRA, was not different using either ATA or ITA (2.1% and 1.1% respectively, p = 0.37). CONCLUSION The use of ITA Consensus, in clinical practice, increases significantly the number of patients for whom RRA is not routinely indicated in comparison to ATA guidelines but without differences in delaying the diagnosis of distant metastatic disease.
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Affiliation(s)
- R Forleo
- Department of Medical Sciences, University of Siena, Viale Bracci 16, 53100, Siena, Italy
| | - N Fralassi
- Department of Medical Sciences, University of Siena, Viale Bracci 16, 53100, Siena, Italy
| | - F Maino
- Department of Medical Sciences, University of Siena, Viale Bracci 16, 53100, Siena, Italy
| | - M Capezzone
- Department of Medical Sciences, University of Siena, Viale Bracci 16, 53100, Siena, Italy
| | - L Brilli
- Department of Medical Sciences, University of Siena, Viale Bracci 16, 53100, Siena, Italy
| | - T Pilli
- Department of Medical Sciences, University of Siena, Viale Bracci 16, 53100, Siena, Italy
| | - S Cantara
- Department of Medical Sciences, University of Siena, Viale Bracci 16, 53100, Siena, Italy
| | - M G Castagna
- Department of Medical Sciences, University of Siena, Viale Bracci 16, 53100, Siena, Italy.
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13
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Zhang Y, Sun X. Letter to the editor: Is it reasonable to prescribe RAI for all DTC patients with a primary tumor diameter exceeding 1 cm? Eur J Nucl Med Mol Imaging 2020; 47:2505-2506. [DOI: 10.1007/s00259-020-04858-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 05/04/2020] [Indexed: 11/29/2022]
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14
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Is Less More? A Microsimulation Model Comparing Cost-effectiveness of the Revised American Thyroid Association's 2015 to 2009 Guidelines for the Management of Patients With Thyroid Nodules and Differentiated Thyroid Cancer. Ann Surg 2020; 271:765-773. [PMID: 30339630 DOI: 10.1097/sla.0000000000003074] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
OBJECTIVE To assess relative clinical and economic performance of the revised American Thyroid Association (ATA) thyroid cancer guidelines compared to current standard of care. BACKGROUND Diagnosis of thyroid cancer in the United States has tripled whereas mortality has only marginally increased. Most patients present with small papillary carcinomas and have historically received at least a total thyroidectomy as a treatment. In 2015, the ATA released the revised guidelines recommending an option for active surveillance (AS) of small papillary thyroid carcinoma and thyroid lobectomy for larger unifocal tumors. METHODS We created a Markov microsimulation model to evaluate the performance of the ATA's 2015 guidelines compared to the ATA's 2009 guidelines. We modeled a cohort of simulated patients with demographic and thyroid nodule characteristics representative of those presenting clinically in the United States. Outcome measures include life expectancy, quality-adjusted life years, costs, and frequency of surgical adverse events. RESULTS In our base case analysis, the ATA 2015 strategy dominates the ATA 2009 strategy. The ATA 2015 strategy delivers greater discounted average quality-adjusted life years (13.09 vs 12.43) at a lower discounted average cost ($14,752 vs $20,126). Deaths due to thyroid cancer under the 2015 strategy are higher than the 2009 strategy but this is offset by a reduction in surgical deaths, leading to greater average life expectancy under the ATA 2015 strategy. The optimal strategy is sensitive to patients who experience a greater decrement in quality of life while undergoing AS. CONCLUSIONS The ATA 2015 Guidelines represent a cost-effective strategy regarding AS and extent of surgery.
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15
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Juweid ME, Tulchinsky M, Mismar A, Momani M, Zayed AA, Al Hawari H, Albsoul N, Mottaghy FM. Contemporary considerations in adjuvant radioiodine treatment of adults with differentiated thyroid cancer. Int J Cancer 2020; 147:2345-2354. [PMID: 32319676 DOI: 10.1002/ijc.33020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 03/14/2020] [Accepted: 04/09/2020] [Indexed: 12/19/2022]
Abstract
Differentiated thyroid cancer (DTC) is the most common endocrine malignancy with a growing incidence worldwide. The initial conventional management is surgery, followed by consideration of 131 I treatment that includes three options. These are termed remnant ablation (targeting benign thyroid remnant), adjuvant (targeting presumed microscopic DTC) and known disease (targeting macroscopic DTC) treatments. Some experts mostly rely on clinicopathologic assessment for recurrence risk to select patients for the 131 I treatment. Others, in addition, apply radioiodine imaging to guide their treatment planning, termed theranostics (aka theragnostics or radiotheragnostics). In patients with low-risk DTC, remnant ablation rather than adjuvant treatment is generally recommended and, in this setting, the ATA recommends a low 131 I activity. 131 I adjuvant treatment is universally recommended in patients with high-risk DTC (a primary tumor of any size with gross extrathyroidal extension) and is generally recommended in intermediate-risk DTC (primary tumor >4 cm in diameter, locoregional metastases, microscopic extrathyroidal extension, aggressive histology or vascular invasion). The optimal amount of 131 I activity for adjuvant treatment is controversial, but experts reached a consensus that the 131 I activity should be greater than that for remnant ablation. The main obstacles to establishing timely evidence through randomized clinical trials for 131 I therapy include years-to-decades delay in recurrence and low disease-specific mortality. This mini-review is intended to update oncologists on the most recent clinical, pathologic, laboratory and imaging variables, as well as on the current 131 I therapy-related definitions and management paradigms, which should optimally equip them for individualized patient guidance and treatment.
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Affiliation(s)
- Malik E Juweid
- Division of Nuclear Medicine/Department of Radiology and Nuclear Medicine, University of Jordan, Amman, Jordan
| | - Mark Tulchinsky
- Department of Radiology, Penn State University Hershey Medical Center, Hershey, Pennsylvania, USA
| | - Ayman Mismar
- Department of General Surgery, University of Jordan, Amman, Jordan
| | - Munther Momani
- Division of Endocrinology, Department of Medicine, University of Jordan, Amman, Jordan
| | - Ayman A Zayed
- Division of Endocrinology, Department of Medicine, University of Jordan, Amman, Jordan
| | - Hussam Al Hawari
- Division of Endocrinology, Department of Medicine, University of Jordan, Amman, Jordan
| | - Nader Albsoul
- Department of General Surgery, University of Jordan, Amman, Jordan
| | - Felix M Mottaghy
- Department of Nuclear Medicine, University of Aachen, Aachen, Germany
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16
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Albano D, Bonacina M, Durmo R, Bertagna F, Giubbini R. Efficacy of low radioiodine activity versus intermediate-high activity in the ablation of low-risk differentiated thyroid cancer. Endocrine 2020; 68:124-131. [PMID: 31784881 DOI: 10.1007/s12020-019-02148-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 11/20/2019] [Indexed: 01/08/2023]
Abstract
PURPOSE The aim of our study was to compare the efficacy of thyroid remnant ablation using low (1.1 GBq) and intermediate-high radioiodine (RAI) activity (1.85-3.7 GBq) in low-risk differentiated thyroid carcinoma (DTC) and to evaluate the staging role of the whole body scan (WBS) in detection extrathyroidal disease. MATERIALS AND METHODS We retrospectively included 277 patients who underwent total thyroidectomy and RAI for low-risk DTC and divided them in two groups according to RAI activity at ablation: group 1 (n = 174) treated with low activity (1.1 GBq), and group 2 (n = 103) with intermediate-high activity (1.85-3.7 GBq). To evaluate the successful ablation rate, the WBS 1 year after RAI was visually interpreted using a three-point scale: score 0 in case of absence of visible RAI uptake in thyroid bed; score 1 in presence of faint uptake in the thyroid bed; and score 2 in case of significant RAI uptake in thyroid bed. RESULTS The success ablation rate was significantly higher in group 2 than group 1 (p < 0.001) with the presence of a positive WBS (score 1-2) in 65% low-activity group and 33% in intermediate-high group. Considering response to therapy categories, excellent response rate was significantly higher in group 2 (p = 0.020), while indeterminate response was higher in group 1 (p value = 0.005). Post RAI imaging revealed extrathyroidal uptake in 27 cases: 17 laterocervical nodal and 10 distant metastases. In both groups similar detection rate of nodal and distant metastases were recognized without any statistical difference. CONCLUSIONS The ablation rate with intermediate-high RAI activity (1.85-3.7 GBq) was better than with a low activity (1.1 GBq). First WBS may help to recognize nodal and distant metastases in about 10% of cases changing clinical stage and subsequent management.
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Affiliation(s)
- Domenico Albano
- Nuclear Medicine, University of Brescia, Brescia, Italy.
- Nuclear Medicine, Spedali Civili Brescia, P.le Spedali Civili 1, 25123, Brescia, Italy.
| | - Mattia Bonacina
- Nuclear Medicine, Spedali Civili Brescia, P.le Spedali Civili 1, 25123, Brescia, Italy
| | - Rexhep Durmo
- Nuclear Medicine, Spedali Civili Brescia, P.le Spedali Civili 1, 25123, Brescia, Italy
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Nixon IJ, Shah JP, Zafereo M, Simo RS, Hay ID, Suárez C, Zbären P, Rinaldo A, Sanabria A, Silver C, Mäkitie A, Vander Poorten V, Kowalski LP, Shaha AR, Randolph GW, Ferlito A. The role of radioactive iodine in the management of patients with differentiated thyroid cancer - An oncologic surgical perspective. Eur J Surg Oncol 2020; 46:754-762. [PMID: 31952928 DOI: 10.1016/j.ejso.2020.01.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 11/16/2019] [Accepted: 01/06/2020] [Indexed: 12/18/2022] Open
Abstract
With improved understanding of the biology of differentiated thyroid carcinoma its management is evolving. The approach to surgery for the primary tumour and elective nodal surgery is moving from a "one-size-fits-all" recommendation to a more personalised approach based on risk group stratification. With this selective approach to initial surgery, the indications for adjuvant radioactive iodine (RAI) therapy are also changing. This selective approach to adjuvant therapy requires understanding by the entire treatment team of the rationale for RAI, the potential for benefit, the limitations of the evidence, and the potential for side-effects. This review considers the evidence base for the benefits of using RAI in the primary and recurrent setting as well as the side-effects and risks from RAI treatment. By considering the pros and cons of adjuvant therapy we present an oncologic surgical perspective on selection of treatment for patients, both following pre-operative diagnostic biopsy and in the setting of a post-operative diagnosis of malignancy.
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Affiliation(s)
- I J Nixon
- Department of Otolaryngology, Head and Neck Surgery, NHS Lothian, University of Edinburgh, UK.
| | - J P Shah
- Head and Neck Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - M Zafereo
- Head and Neck Surgery, MD Anderson Cancer Center, Houston, TX, USA
| | - R S Simo
- Department of Otorhinolaryngology Head and Neck Surgery, Head, Neck and Thyroid Oncology Unit, Guy's and St Thomas' Hospital NHS Foundation Trust, London, UK
| | - I D Hay
- Division of Endocrinology and Internal Medicine, Mayo Clinic School of Medicine, Rochester, MN, USA
| | - C Suárez
- Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain; Instituto Universitario de Oncología del Principado de Asturias, Universidad de Oviedo, Oviedo, Spain
| | - P Zbären
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital, Bern, Switzerland
| | - A Rinaldo
- University of Udine School of Medicine, Udine, Italy
| | - A Sanabria
- Department of Surgery, School of Medicine, Universidad de Antioquia, Centro de Excelencia en Cirugia de Cabeza y Cuello-CEXCA, Medellin, Colombia
| | - C Silver
- Department of Surgery, University of Arizona College of Medicine, Phoenix, AZ, USA
| | - A Mäkitie
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Helsinki and Helsinki University Hospital, Finland; Research Program in Systems Oncology, Faculty of Medicine, University of Helsinki, Helsinki, Finland; Division of Ear, Nose and Throat Diseases, Department of Clinical Sciences, Intervention and Technology, Karolinska Institute and Karolinska Hospital, Stockholm, Sweden
| | - V Vander Poorten
- Department of Oncology, section Head and Neck Oncology, KU Leuven, and Otorhinolaryngology, Head and Neck Surgery, University Hospitals Leuven, Leuven Cancer Institute, Leuven, Belgium
| | - L P Kowalski
- Department of Head and Neck Surgery and Otorhinolaryngology, A.C. Camargo Cancer Center, and Head and Neck Surgery Department, Faculty of Medicine, University of Sao Paulo, São Paulo, Brazil
| | - A R Shaha
- Head and Neck Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - G W Randolph
- Division of Thyroid and Parathyroid Endocrine Surgery, Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Boston, MA, USA
| | - A Ferlito
- Coordinator of the International Head and Neck Scientific Group, Padua, Italy
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18
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Initial treatment of pediatric differentiated thyroid cancer: a review of the current risk-adaptive approach. Pediatr Radiol 2019; 49:1391-1403. [PMID: 31620841 DOI: 10.1007/s00247-019-04457-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/07/2019] [Accepted: 06/18/2019] [Indexed: 10/25/2022]
Abstract
Differentiated thyroid cancer in children is a rare disease, accounting for only 1.4% of all pediatric malignancies. The diagnosis, biological behavior and treatment of differentiated thyroid cancer in children is different from that in adults. While there are many unresolved issues regarding approaches to management of differentiated thyroid cancer in the pediatric population, there is near universal consensus that treatment of this disease, which includes total thyroidectomy, central lymph node dissection at the time of initial surgery in those with nodal metastases, and the possible use of iodine-131 radiotherapy, is best performed by specialists including high-volume endocrine surgeons and experts with experience in calculating and administering radioactive iodine in children, when deemed appropriate.
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19
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Krajewska J, Jarzab M, Kukulska A, Czarniecka A, Roskosz J, Puch Z, Wygoda Z, Paliczka-Cieslik E, Kropinska A, Krol A, Handkiewicz-Junak D, Jarzab B. Postoperative Radioiodine Treatment within 9 Months from Diagnosis Significantly Reduces the Risk of Relapse in Low-Risk Differentiated Thyroid Carcinoma. Nucl Med Mol Imaging 2019; 53:320-327. [PMID: 31723361 PMCID: PMC6821904 DOI: 10.1007/s13139-019-00608-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 08/13/2019] [Accepted: 08/20/2019] [Indexed: 11/24/2022] Open
Abstract
Purpose Although postoperative radioiodine (RAI) therapy has been used in patients with differentiated thyroid carcinoma (DTC) for many years, there is still lack of data defining the timing of RAI administration. A retrospective analysis was carried out to answer the question whether the time of postoperative RAI treatment demonstrated any impact on long-term outcomes, particularly in low-risk DTC. Material The analyzed group involved 701 DTC patients staged pT1b-T4N0-N1M0, who underwent total thyroidectomy and postoperative RAI therapy. According to the time interval between DTC diagnosis and RAI administration, patients were allocated to one of three groups: up to 9 months (N = 150), between 9 and 24 months (N = 323), and > 24 months (N = 228). Median follow-up was 12.1 years (1.5–15.2). Results Based on an initial DTC advancement and postoperative stimulated thyroglobulin concentration patients were stratified as a low-, intermediate-, and high-risk group. Low-risk patients, who received RAI therapy up to 9 months, demonstrated significantly lower risk of relapse comparing to those, in whom RAI was administered between 9 and 24 months and after 24 months since DTC diagnosis: 0%, 5.5%, and 7.1%, respectively. Regarding intermediate- and high-risk groups, the differences in the timing of postoperative RAI treatment were not significant. Conclusion If postoperative RAI treatment is considered in low-risk DTC, any delay in RAI administration above 9 months since diagnosis may be related to poorer long-term outcomes.
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Affiliation(s)
- Jolanta Krajewska
- Nuclear Medicine and Endocrine Oncology Department, M.Sklodowska-Curie Institute-Oncology Center, Gliwice Branch, Wybrzeze AK 15, 44-101 Gliwice, Poland
| | - Michal Jarzab
- IIIrd Radiotherapy Clinic, M.Sklodowska-Curie Institute-Oncology Center, Gliwice Branch, Gliwice, Poland
| | - Aleksandra Kukulska
- Nuclear Medicine and Endocrine Oncology Department, M.Sklodowska-Curie Institute-Oncology Center, Gliwice Branch, Wybrzeze AK 15, 44-101 Gliwice, Poland
| | - Agnieszka Czarniecka
- The Oncologic and Reconstructive Surgery Clinic, M.Sklodowska-Curie Institute-Oncology Center, Gliwice Branch, Gliwice, Poland
| | - Jozef Roskosz
- Nuclear Medicine and Endocrine Oncology Department, M.Sklodowska-Curie Institute-Oncology Center, Gliwice Branch, Wybrzeze AK 15, 44-101 Gliwice, Poland
| | - Zbigniew Puch
- Nuclear Medicine and Endocrine Oncology Department, M.Sklodowska-Curie Institute-Oncology Center, Gliwice Branch, Wybrzeze AK 15, 44-101 Gliwice, Poland
| | - Zbigniew Wygoda
- Nuclear Medicine and Endocrine Oncology Department, M.Sklodowska-Curie Institute-Oncology Center, Gliwice Branch, Wybrzeze AK 15, 44-101 Gliwice, Poland
| | - Ewa Paliczka-Cieslik
- Nuclear Medicine and Endocrine Oncology Department, M.Sklodowska-Curie Institute-Oncology Center, Gliwice Branch, Wybrzeze AK 15, 44-101 Gliwice, Poland
| | - Aleksandra Kropinska
- Nuclear Medicine and Endocrine Oncology Department, M.Sklodowska-Curie Institute-Oncology Center, Gliwice Branch, Wybrzeze AK 15, 44-101 Gliwice, Poland
| | - Aleksandra Krol
- Nuclear Medicine and Endocrine Oncology Department, M.Sklodowska-Curie Institute-Oncology Center, Gliwice Branch, Wybrzeze AK 15, 44-101 Gliwice, Poland
| | - Daria Handkiewicz-Junak
- Nuclear Medicine and Endocrine Oncology Department, M.Sklodowska-Curie Institute-Oncology Center, Gliwice Branch, Wybrzeze AK 15, 44-101 Gliwice, Poland
| | - Barbara Jarzab
- Nuclear Medicine and Endocrine Oncology Department, M.Sklodowska-Curie Institute-Oncology Center, Gliwice Branch, Wybrzeze AK 15, 44-101 Gliwice, Poland
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Low-Risk Thyroid Cancer in Elderly: Total Thyroidectomy/RAI Predominates but Lacks Survival Advantage. J Surg Res 2019; 243:189-197. [PMID: 31185435 DOI: 10.1016/j.jss.2019.05.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 03/12/2019] [Accepted: 05/15/2019] [Indexed: 11/23/2022]
Abstract
BACKGROUND Papillary thyroid cancer (PTC) is the fastest increasing cancer in the United States; incidence increases with age. It generally has a favorable prognosis but may behave more aggressively in older patients. This study aims to describe national treatment patterns for low-risk PTC in older adults. MATERIALS AND METHODS The Surveillance, Epidemiology, and End Results-Medicare database was used to identify patients ≥66 y treated for clinical T1N0M0 PTC between 1996 and 2011. Multivariable logistic regression was used to identify factors associated with extent of surgery (total thyroidectomy versus lobectomy) and radioactive iodine (RAI) administration. Cox proportional hazards modeling was used to estimate the effect of treatment type on disease-specific survival (DSS). RESULTS Three thousand two hundred and fourteen patients met inclusion criteria; 77.6% were women, median age was 72 y, and mean tumor size was 0.7 cm. 42.7% had preoperatively diagnosed PTC (versus incidental). 65.4% underwent total thyroidectomy, 29.0% lobectomy, and 5.6% lobectomy followed by completion thyroidectomy; 33.4% received postoperative RAI. Five- and 10-year DSS were 98.9% and 98.3%, respectively. After adjustment, larger tumor size (1.1-2 cm), multifocality, and a preoperative PTC diagnosis were associated with greater odds of undergoing more extensive surgery and receiving RAI (P < 0.0001). DSS was not associated with extent of surgery or RAI administration (P > 0.05). CONCLUSIONS Most older adults with PTC underwent total thyroidectomy and a third received RAI; neither treatment improved DSS. In the growing elderly population, less extensive interventions for PTC may reduce morbidity and improve quality of life while preserving an excellent prognosis.
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Matrone A, Campopiano MC, Nervo A, Sapuppo G, Tavarelli M, De Leo S. Differentiated Thyroid Cancer, From Active Surveillance to Advanced Therapy: Toward a Personalized Medicine. Front Endocrinol (Lausanne) 2019; 10:884. [PMID: 31998228 PMCID: PMC6961292 DOI: 10.3389/fendo.2019.00884] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 12/03/2019] [Indexed: 12/22/2022] Open
Abstract
Differentiated thyroid cancer (DTC) is the most frequent endocrine malignancy and represents the most rapidly increasing cancer diagnosis worldwide. In the last 20 years, this increase has been mostly due to a higher detection of small papillary thyroid cancers, with doubtful effects on patients' outcome. In fact, despite this growth, cancer-related death remained stable over the years. The growing detection of microcarcinomas associated to the indolent behavior of these cancers led to the development of strategies of active surveillance in selected centers of different countries. Moreover, toward a more personalized approach in the management of DTC patients, surgical treatments became more conservative, favoring less extensive options in patients at low risk of recurrence. The rise in lobectomy in low-risk cases and the need to avoid further therapies, with controversial impact on recurrences and cancer-related death in selected intermediate risk cases, led to reconsider the use of radioiodine treatment, too. Since clinicians aim to treat different patients with different modalities, the cornerstone of DTC follow-up (i.e., thyroglobulin, thyroglobulin autoantibodies, and neck ultrasound) should be interpreted consistently with this change of paradigm. The introduction of novel molecular target therapies (i.e., tyrosine kinase inhibitors), as well as a better understanding of the mechanisms of immune checkpoint inhibitor therapies, is radically changing the management of patients with advanced DTC, in whom no treatment option was available. The aim of this review is to analyze the most recent developments of the management of DTC, focusing on several key issues: active surveillance strategies, initial treatment, dynamic risk re-stratification, and therapeutic options in advanced DTC.
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Affiliation(s)
- Antonio Matrone
- Endocrinology Unit 1, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
- *Correspondence: Antonio Matrone
| | - Maria Cristina Campopiano
- Endocrinology Unit 1, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Alice Nervo
- Oncological Endocrinology Unit, Department of Medical Sciences, School of Medicine, Cittá della Salute e della Scienza Hospital, University of Turin, Turin, Italy
| | - Giulia Sapuppo
- Division of Endocrinology, Department of Clinical and Experimental Medicine, Garibaldi-Nesima Medical Center, University of Catania, Catania, Italy
| | - Martina Tavarelli
- Division of Endocrinology, Department of Clinical and Experimental Medicine, Garibaldi-Nesima Medical Center, University of Catania, Catania, Italy
| | - Simone De Leo
- Division of Endocrine and Metabolic Diseases, IRCCS, Istituto Auxologico Italiano, Milan, Italy
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Gartland RM, Lubitz CC. Impact of Extent of Surgery on Tumor Recurrence and Survival for Papillary Thyroid Cancer Patients. Ann Surg Oncol 2018; 25:2520-2525. [PMID: 29855833 PMCID: PMC6070400 DOI: 10.1245/s10434-018-6550-2] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Indexed: 12/25/2022]
Abstract
BACKGROUND The extent of surgery for low-risk papillary thyroid cancer (PTC) has been the subject of debate among experts for decades. OBJECTIVE In this paper, we aimed to systematically review whether thyroid lobectomy versus total thyroidectomy for PTC patients with tumors measuring 1.0-4.0 cm impacts tumor recurrence and survival. RESULTS A systematic review of the literature from January 1990 to February 2018 yielded 13 relevant studies, including eight national cancer registry database studies, one multi-institutional thyroid cancer-specific database, three large-scale institutional series, and one meta-analysis. Data from these studies demonstrate that total thyroidectomy for the treatment of PTC measuring 1.0-4.0 cm does not confer a clinically significant improvement in disease-specific survival compared with thyroid lobectomy. Four of six studies also reported that total thyroidectomy is associated with a small but statistically significant improvement in disease-free survival, although it is argued whether this difference is clinically significant. CONCLUSIONS While the quality of the data limit the strength of our conclusions, and while tumor characteristics, patient risk factors, and preferences should be considered, most data support that lobectomy and total thyroidectomy yield comparable oncologic outcomes for PTC measuring 1.0-4.0 cm.
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Affiliation(s)
- Rajshri M Gartland
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Carrie C Lubitz
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
- Institute for Technology Assessment, Boston, MA, USA.
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Dhir M, McCoy KL, Ohori NP, Adkisson CD, LeBeau SO, Carty SE, Yip L. Correct extent of thyroidectomy is poorly predicted preoperatively by the guidelines of the American Thyroid Association for low and intermediate risk thyroid cancers. Surgery 2017; 163:81-87. [PMID: 29128185 DOI: 10.1016/j.surg.2017.04.029] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 03/22/2017] [Accepted: 04/05/2017] [Indexed: 11/19/2022]
Abstract
BACKGROUND Recent guidelines from the American Thyroid Association recommend thyroid lobectomy for intrathyroidal differentiated thyroid cancers <4 cm. Our aim was to examine histology from patients with cytologic results that were positive or suspicious for malignancy to assess the extent of initial thyroidectomy based on criteria from the 2015 American Thyroid Association guidelines. METHODS We studied consecutive patients who had either a positive or suspicious for malignancy cytologic diagnosis and under prior American Thyroid Association guidelines underwent initial total thyroidectomy ± lymphadenectomy. RESULTS Among 447 patients, high-risk features necessitating total thyroidectomy were present in 19% (72/380) of positive and 15% (10/67) of suspicious for malignancy patients (P = .5). Intermediate-risk features on histology were identified postoperatively in 46% (175/380) with positive and 15% (18/67) with suspicious for malignancy fine-needle aspiration results. In multivariable analysis, preoperative factors associated with intermediate-risk disease included age ≥45 years, women, larger tumor size, positive fine-needle aspiration cytology, and BRAF V600E or RET/PTC positivity. CONCLUSION When patients are considered for lobectomy under the 2015 American Thyroid Association guidelines, ~ 60% with positive and 30% with suspicious for malignancy cytology would need completion thyroidectomy based on intermediate-risk disease. The cost and risk implications of the new American Thyroid Association strategy were substantial and better tools are needed to improve preoperative risk stratification.
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Affiliation(s)
- Mashaal Dhir
- Division of Endocrine Surgery, Department of Surgery, University of Pittsburgh, PA
| | - Kelly L McCoy
- Division of Endocrine Surgery, Department of Surgery, University of Pittsburgh, PA
| | - N Paul Ohori
- Department of Pathology, University of Pittsburgh, PA
| | - Cameron D Adkisson
- Division of Endocrine Surgery, Department of Surgery, University of Pittsburgh, PA
| | - Shane O LeBeau
- Division of Diabetes, Endocrinology, and Metabolism, Department of Medicine, University of Pittsburgh, PA
| | - Sally E Carty
- Division of Endocrine Surgery, Department of Surgery, University of Pittsburgh, PA
| | - Linwah Yip
- Division of Endocrine Surgery, Department of Surgery, University of Pittsburgh, PA.
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24
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Nabhan F, Porter K, Senter L, Ringel MD. Anti-thyroglobulin antibodies do not significantly increase the risk of finding iodine avid metastases on post-radioactive iodine ablation scan in low-risk thyroid cancer patients. J Endocrinol Invest 2017; 40:1015-1021. [PMID: 28510122 PMCID: PMC7102497 DOI: 10.1007/s40618-017-0685-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 05/03/2017] [Indexed: 11/24/2022]
Abstract
OBJECTIVE Post-operative thyroglobulin (Tg) levels can predict the likelihood of residual cancer, including distant metastases, thereby influencing postsurgical treatment strategies even in patients with low-risk disease. Circulating anti-thyroglobulin antibodies (anti-Tg Abs) interfere with Tg measurement preventing this clinical use. It is not known if the presence of anti-Tg Abs predicts metastatic disease on post-therapy scan in patients with low-risk disease or if they should influence the use or dose of I-131 therapy. In the present study, we compare post-therapy scans in low-risk patients with and without anti-Tg Abs. METHODS This is a single-institution retrospective study. The study population (Group A) included all patients with low-risk differentiated thyroid cancer (DTC) who underwent total thyroidectomy and RAI between 1/1/2006 to 9/11/2015 with intrathyroidal T1-T2, Nx, N0 or N1a (≤5 nodes all measuring, when reported, <2 mm) that had anti-thyroglobulin antibodies. Patients were excluded if they had known distant metastases and/or extensive vascular invasion. A second group of patients (Group B) treated during the same period but without anti-Tg antibodies was selected to match group A by propensity core matching with a logistic regression model. RESULTS Each group included 37 patients. In group A: Median age was 40 years, 86% female and 76% PTC. Median tumor size was 2 cm (0.2-3.8), 32% had multifocal disease, 16% were N1a and 4% had vascular invasion. Parameters in group B were not statistically different from Group A, as expected based on the selection criteria, except being less likely to have Hashimoto's thyroiditis on pathology (p < 0.001). Post-therapy scan results were compared by Chi-square test with 86% negative post therapy scan frequency in group A and 92% in group B without evidence of a difference (p = 0.45). CONCLUSION In patients with low-risk DTC, anti-Tg Abs did not significantly predict metastatic disease on post-therapy scan. If confirmed, these data suggest that the presence of anti-Tg Abs alone should not influence initial therapy in patients with low-risk DTC.
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Affiliation(s)
- F Nabhan
- Division of Endocrinology, Diabetes, and Metabolism, The Ohio State University Medical Center, The Ohio State University and Arthur G. James Cancer Center, 575 McCampbell Hall, 1581 Dodd Dr, Columbus, OH, 43210, USA.
| | - K Porter
- Center for Biostatistics, Department of Biomedical Informatics, The Ohio State University College of Medicine, Columbus, OH, 43235, USA
| | - L Senter
- Division of Human Genetics, The Ohio State University and Arthur G. James Cancer Center, Columbus, OH, 43235, USA
| | - M D Ringel
- Division of Endocrinology, Diabetes, and Metabolism, The Ohio State University Medical Center, The Ohio State University and Arthur G. James Cancer Center, 575 McCampbell Hall, 1581 Dodd Dr, Columbus, OH, 43210, USA
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Andresen NS, Buatti JM, Tewfik HH, Pagedar NA, Anderson CM, Watkins JM. Radioiodine Ablation following Thyroidectomy for Differentiated Thyroid Cancer: Literature Review of Utility, Dose, and Toxicity. Eur Thyroid J 2017; 6:187-196. [PMID: 28868259 PMCID: PMC5567113 DOI: 10.1159/000468927] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 03/03/2017] [Indexed: 11/19/2022] Open
Abstract
Management recommendations for differentiated thyroid cancer are evolving. Total thyroidectomy is the backbone of curative-intent therapy, with radioiodine ablation (RAI) of the thyroid remnant routinely performed, in order to facilitate serologic surveillance and reduce recurrence risk. Several single-institution series have identified patient subsets for whom recurrence risk is sufficiently low that RAI may not be indicated. Further, the appropriate dose of RAI specific to variable clinicopathologic presentations remains poorly defined. While recent randomized trials demonstrated equivalent thyroid remnant ablation rates between low- and high-dose RAI, long-term oncologic endpoints remain unreported. While RAI may be employed to facilitate surveillance following total thyroidectomy, cancer recurrence risk reduction is not demonstrated in favorable-risk patients with tumor size ≤1 cm without high-risk pathologic features. When RAI is indicated, in patients without macroscopic residual disease or metastasis, the evidence suggests that the rate of successful remnant ablation following total thyroidectomy is equivalent between doses of 30-50 mCi and doses ≥100 mCi, with fewer acute side effects; however, in the setting of subtotal thyroidectomy or when preablation diagnostic scan uptake is >2%, higher doses are associated with improved ablation rates. Historical series demonstrate conflicting findings of long-term cancer control rates between dose levels; long-term results from modern series have yet to be reported. For high-risk patients, including those with positive surgical margins, gross extrathyroidal extension, lymph node involvement, subtotal thyroidectomy, or >5% uptake, higher-dose RAI therapy appears to provide superior rates of ablation and cancer control.
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Affiliation(s)
| | - John M. Buatti
- Department of Radiation Oncology, University of Iowa, Iowa City, Iowa, USA
| | | | - Nitin A. Pagedar
- Department of Otolaryngology-Head and Neck Surgery, University of Iowa, Iowa City, Iowa, USA
| | - Carryn M. Anderson
- Department of Radiation Oncology, University of Iowa, Iowa City, Iowa, USA
| | - John M. Watkins
- Department of Radiation Oncology, University of Iowa, Iowa City, Iowa, USA
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Al-Qurayshi Z, Bu Ali D, Srivastav S, Kandil E. Financial Implication of Radioactive Iodine Therapy for Early-Stage Papillary Thyroid Cancer. Oncology 2017; 93:122-126. [DOI: 10.1159/000466700] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 02/14/2017] [Indexed: 11/19/2022]
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27
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Kwon H, Jeon MJ, Kim WG, Park S, Kim M, Kim TY, Han M, Song DE, Sung TY, Yoon JH, Hong SJ, Ryu JS, Shong YK, Kim WB. Lack of Efficacy of Radioiodine Remnant Ablation for Papillary Thyroid Microcarcinoma: Verification Using Inverse Probability of Treatment Weighting. Ann Surg Oncol 2017; 24:2596-2602. [PMID: 28600731 DOI: 10.1245/s10434-017-5910-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Indexed: 11/18/2022]
Abstract
BACKGROUND Most of the increase in thyroid cancer in recent decades has been due to papillary thyroid microcarcinoma (PTMC). We evaluated the efficacy of radioiodine remnant ablation (RRA) in patients with PTMC. METHODS This historical cohort study included 1932 PTMC patients without lateral cervical lymph node (LN) or distant metastasis who underwent total thyroidectomy (TT) during the median 8.3 years of follow-up. The clinical outcomes of patients with or without RRA were compared using weighted logistic regression models with the inverse probability of treatment weighting (IPTW) method and considering risk factors, including age, sex, primary tumor size, extrathyroidal extension, multifocality, and central cervical LN metastasis. RESULTS The median primary tumor size of the RRA group was significantly larger than that of the no-RRA group (0.7 vs. 0.5 cm, P < 0.001). There were significantly more patients with multifocality, extrathyroidal extension, and cervical LN metastasis in the RRA group compared with the no-RRA group. There was no significant difference in recurrence-free survival between the two groups (P = 0.11). Cox proportional-hazard analysis with IPTW by adjusting for clinicopathological risk factors demonstrated no significant difference in recurrence of PTMC according to RRA treatment (hazard ratio [HR] 2.02; 95% confidence interval [CI] 0.65-6.25; P = 0.2). CONCLUSIONS RRA had no therapeutic effect on the clinical outcomes of patients with PTMC who underwent TT. Surgical treatment without RRA could be applicable for patients with PTMC if there is no evidence of lateral cervical LN metastasis or distant metastasis.
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Affiliation(s)
- Hyemi Kwon
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.,Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Min Ji Jeon
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Won Gu Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Suyeon Park
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Mijin Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Tae Yong Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Minkyu Han
- Department of Clinical Epidemiology and Biostatistics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Dong Eun Song
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Tae-Yon Sung
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jong Ho Yoon
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Suck Joon Hong
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jin-Sook Ryu
- Department of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Young Kee Shong
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Won Bae Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
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28
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Melo M, Vicente N, Ventura M, Gaspar Da Rocha A, Soares P, Carrilho F. The role of ablative treatment in differentiated thyroid cancer management. Expert Rev Endocrinol Metab 2017; 12:109-116. [PMID: 30063427 DOI: 10.1080/17446651.2017.1289839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The role of ablative treatment in differentiated thyroid cancer management has been evolving over the years. After its introduction in clinical practice, the use of postsurgical radioiodine treatment was generalized to almost every patient with differentiated thyroid cancer, with the exception of unifocal microcarcinomas. However, in the last decade several studies questioned its benefit in low- and intermediate-risk patients. Areas covered: In this review we discuss the role of postsurgical radioiodine treatment at the present time. Expert commentary: Although there is general consensus about the recommendation for very low-risk (microcarcinomas) and high-risk patients - no indication for routine postoperative radioiodine and clear indication for radioiodine treatment, respectively, the recommendation for low- and intermediate-risk patients is still under debate. The most recent guidelines from the American Thyroid Association make a statement against routine postoperative radioiodine in both low- and intermediate-risk cases, recommending an individualized approach that takes into consideration the risk of disease persistence or recurrence after surgery. We consider that these recommendations are in accordance with the best evidence available today, and we would like to emphasize that radioiodine is generally favored for most intermediate-risk patients, especially in the presence of extensive lymph node disease or older age.
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Affiliation(s)
- Miguel Melo
- a Department of Endocrinology, Diabetes and Metabolism , Centro Hospitalar e Universitário de Coimbra , Coimbra , Portugal
- b i3S - Instituto de Investigação e Inovação em Saúde , University of Porto , Porto , Portugal
- c Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP) , Porto , Portugal
- d University Clinic of Endocrinology, Diabetes and Metabolism, Faculty of Medicine , University of Coimbra , Coimbra , Portugal
| | - Nuno Vicente
- a Department of Endocrinology, Diabetes and Metabolism , Centro Hospitalar e Universitário de Coimbra , Coimbra , Portugal
| | - Mara Ventura
- a Department of Endocrinology, Diabetes and Metabolism , Centro Hospitalar e Universitário de Coimbra , Coimbra , Portugal
| | - Adriana Gaspar Da Rocha
- b i3S - Instituto de Investigação e Inovação em Saúde , University of Porto , Porto , Portugal
- c Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP) , Porto , Portugal
| | - Paula Soares
- b i3S - Instituto de Investigação e Inovação em Saúde , University of Porto , Porto , Portugal
- c Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP) , Porto , Portugal
- e Department of Pathology and Oncology, Medical Faculty , University of Porto , Porto , Portugal
| | - Francisco Carrilho
- a Department of Endocrinology, Diabetes and Metabolism , Centro Hospitalar e Universitário de Coimbra , Coimbra , Portugal
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29
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Parisi MT, Eslamy H, Mankoff D. Management of Differentiated Thyroid Cancer in Children: Focus on the American Thyroid Association Pediatric Guidelines. Semin Nucl Med 2016; 46:147-64. [PMID: 26897719 DOI: 10.1053/j.semnuclmed.2015.10.006] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
First introduced in 1946, radioactive iodine (I-131) produces short-range beta radiation with a half-life of 8 days. The physical properties of I-131 combined with the high degree of uptake in the differentiated thyroid cancers (DTCs) led to the use of I-131 as a therapeutic agent for DTC in adults. There are two indications for the potential use of I-131 therapy in pediatric thyroid disorders: nonsurgical treatment of hyperthyroidism owing to Graves' disease and the treatment of children with intermediate- and high-risk DTC. However, children are not just miniature adults. Not only are children and the pediatric thyroid gland more sensitive to radiation than adults but also the biologic behavior of DTC differs between children and adults as well. As opposed to adults, children with DTC typically present with advanced disease at diagnosis; yet, they respond rapidly to therapy and have an excellent prognosis that is significantly better than that in adult counterparts with advanced disease. Unfortunately, there are also higher rates of local and distant disease recurrence in children with DTC compared with adults, mandating lifelong surveillance. Further, children have a longer life expectancy during which the adverse effects of I-131 therapy may become manifest. Recognizing the differences between adults and children with DTC, the American Thyroid Association commissioned a task force of experts who developed and recently published a guideline to address the unique issues related to the management of thyroid nodules and DTC in children. This article reviews the epidemiology, diagnosis, staging, treatment, therapy-related effects, and suggestions for surveillance in children with DTC, focusing not only on the differences between adults and children with this disease but also on the latest recommendations from the inaugural pediatric management guidelines of the American Thyroid Association.
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Affiliation(s)
- Marguerite T Parisi
- Department of Radiology, Seattle Children's Hospital, University of Washington School of Medicine, Seattle, WA; Department of Pediatrics, Seattle Children's Hospital, University of Washington School of Medicine, Seattle, WA.
| | - Hedieh Eslamy
- Department of Radiology, Seattle Children's Hospital, University of Washington School of Medicine, Seattle, WA
| | - David Mankoff
- Department of Nuclear Medicine, University of Pennsylvania, Philadelphia, PA
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Castagna MG, Cantara S, Pacini F. Reappraisal of the indication for radioiodine thyroid ablation in differentiated thyroid cancer patients. J Endocrinol Invest 2016; 39:1087-94. [PMID: 27350556 DOI: 10.1007/s40618-016-0503-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 06/08/2016] [Indexed: 02/05/2023]
Abstract
Radioactive iodine therapy is administered to patients with differentiated thyroid cancer (DTC) for eradication of thyroid remnant after total thyroidectomy or, in patients with metastatic disease, for curative or palliative treatment. In past years, thyroid remnant ablation was indicated in almost every patient with a diagnosis of DTC. Nowadays, careful revision of patients' outcome has introduced the concept of risk-based selection of patients candidate to thyroid remnant ablation. The present review aims to underline the indications for thyroid remnant ablation and to address methodologies to be employed.
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Affiliation(s)
- M G Castagna
- Department of Medical, Surgical and Neurological Sciences, University of Siena, Viale Bracci 1, 53100, Siena, Italy.
| | - S Cantara
- Department of Medical, Surgical and Neurological Sciences, University of Siena, Viale Bracci 1, 53100, Siena, Italy
| | - F Pacini
- Department of Medical, Surgical and Neurological Sciences, University of Siena, Viale Bracci 1, 53100, Siena, Italy
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31
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Ruel E, Thomas S, Dinan MA, Perkins JM, Roman SA, Sosa JA. Knowledge of pathologically versus clinically negative lymph nodes is associated with reduced use of radioactive iodine post-thyroidectomy for low-risk papillary thyroid cancer. Endocrine 2016; 52:579-86. [PMID: 26708045 PMCID: PMC4880494 DOI: 10.1007/s12020-015-0826-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Accepted: 12/07/2015] [Indexed: 10/22/2022]
Abstract
Cervical lymph node metastases are common in papillary thyroid cancer (PTC). Clinically negative lymph nodes confer uncertainty about true lymph node status, potentially prompting empiric postoperative radioactive iodine (RAI) administration even in low-risk patients. We examined the association of clinically (cN0) versus pathologically negative (pN0) lymph nodes with utilization of RAI for low-risk PTC. Using the National Cancer Database 1998-2011, adults with PTC who underwent total thyroidectomy for Stage I/II tumors 1-4 cm were evaluated for receipt of RAI based on cN0 versus pN0 status. Cut-point analysis was conducted to determine the number of pN0 nodes associated with the greatest decrease in the odds of receipt of RAI. Survival models and multivariate analyses predicting RAI use were conducted separately for all patients and patients <45 years. 64,980 patients met study criteria; 39,778 (61.2 %) were cN0 versus 25,202 (38.8 %) pN0. Patients with pN0 nodes were more likely to have negative surgical margins and multifocal disease (all p < 0.001). The mean negative nodes reported in surgical pathology specimens was 4; ≥5 pathologically negative lymph nodes provided the best cut-point associated with reduced RAI administration (OR 0.91, CI 0.85-0.97). After multivariable adjustment, pN0 patients with ≥5 nodes examined were less likely to receive RAI compared to cN0 patients across all ages (OR 0.89, p < 0.001) and for patients aged <45 years (0R 0.86, p = 0.001). Patients with <5 pN0 nodes did not differ in RAI use compared to cN0 controls. Unadjusted survival was improved for pN0 versus cN0 patients across all ages (p < 0.001), but not for patients <45 years (p = 0.11); adjusted survival for all ages did not differ (p = 0.13). Pathological confirmation of negative lymph nodes in patients with PTC appears to influence the decision to administer postoperative RAI if ≥5 negative lymph nodes are removed. It is possible that fewer excised lymph nodes may be viewed by clinicians as incidentally resected and thus may suboptimally represent the true nodal status of the central neck. Further research is warranted to determine if there is an optimal number of lymph nodes that should be resected to standardize pathological diagnosis.
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Affiliation(s)
- Ewa Ruel
- Division of Endocrinology, Metabolism and Nutrition, Department of Medicine, Duke University Medical Center, DUMC 3924, 201 Trent Drive, Baker House 227, Durham, NC 27710, USA
| | - Samantha Thomas
- Department of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, NC, USA
- Duke Cancer Institute, Durham, NC, USA
| | - Michaela A. Dinan
- Duke Clinical Research Institute, Duke University, 2400 Pratt St, Durham, NC 27705, USA
- Duke Cancer Institute, Durham, NC, USA
| | - Jennifer M. Perkins
- Division of Endocrinology, Metabolism and Nutrition, Department of Medicine, Duke University Medical Center, DUMC 3924, 201 Trent Drive, Baker House 227, Durham, NC 27710, USA
| | - Sanziana A. Roman
- Section of Endocrine Surgery, Department of Surgery, Duke University Medical Center, DUMC #2945, Durham, NC 27710, USA
- Duke Cancer Institute, Durham, NC, USA
| | - Julie Ann Sosa
- Duke Clinical Research Institute, Duke University, 2400 Pratt St, Durham, NC 27705, USA
- Section of Endocrine Surgery, Department of Surgery, Duke University Medical Center, DUMC #2945, Durham, NC 27710, USA
- Duke Cancer Institute, Durham, NC, USA
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32
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Buffet C, Ghander C, le Marois E, Leenhardt L. Indications for radioiodine administration in follicular-derived thyroid cancer. ANNALES D'ENDOCRINOLOGIE 2016; 76:1S2-7. [PMID: 26826479 DOI: 10.1016/s0003-4266(16)30008-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Indications for radioiodine administration after thyroid cancer surgery have shifted in recent years toward personalized management, adapted to the individual risk of tumor progression. The most recent guidelines and studies favor de-escalation in indications for administration, dosage and means of preparation with exogenous recombinant TSH stimulation as treatment of choice. Radioiodine administration has 3 possible objectives: • ablation of normal thyroid tissue remnants in patients with low risk of progression, using low radioiodine activity levels, with the advantage of completing disease staging on whole-body scintigraphy performed after administration of the radioiodine capsule, and of facilitating follow-up by thyroglobulin assay; • adjuvant treatment for suspected microscopic metastases in patients with intermediate or high risk of progression, using higher activity levels, with the theoretic aim of limiting recurrence and mortality; • curative treatment in high-risk patients with proven metastases, using exclusively high activity levels, with a view to improving specific survival. In future, indications for ablation and/or activity prescription may be governed by an algorithm incorporating individual baseline progression risk (essentially founded of pTNM staging) and postoperative data such as thyroglobulin level and neck ultrasound results.
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Affiliation(s)
- C Buffet
- Unité thyroïde-tumeurs endocrines, Institut d'endocrinologie E3M et Service de médecine nucléaire, Hôpital Pitié-Salpêtrière, Université Pierre-et-Marie-Curie/Institut Universitaire du Cancer, 83, boulevard de L'Hôpital, 75013 Paris, France
| | - C Ghander
- Unité thyroïde-tumeurs endocrines, Institut d'endocrinologie E3M et Service de médecine nucléaire, Hôpital Pitié-Salpêtrière, Université Pierre-et-Marie-Curie/Institut Universitaire du Cancer, 83, boulevard de L'Hôpital, 75013 Paris, France
| | - E le Marois
- Unité thyroïde-tumeurs endocrines, Institut d'endocrinologie E3M et Service de médecine nucléaire, Hôpital Pitié-Salpêtrière, Université Pierre-et-Marie-Curie/Institut Universitaire du Cancer, 83, boulevard de L'Hôpital, 75013 Paris, France
| | - L Leenhardt
- Unité thyroïde-tumeurs endocrines, Institut d'endocrinologie E3M et Service de médecine nucléaire, Hôpital Pitié-Salpêtrière, Université Pierre-et-Marie-Curie/Institut Universitaire du Cancer, 83, boulevard de L'Hôpital, 75013 Paris, France.
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Yi KH, Lee EK, Kang HC, Koh Y, Kim SW, Kim IJ, Na DG, Nam KH, Park SY, Park JW, Bae SK, Baek SK, Baek JH, Lee BJ, Chung KW, Jung YS, Cheon GJ, Kim WB, Chung JH, Rho YS. 2016 Revised Korean Thyroid Association Management Guidelines for Patients with Thyroid Nodules and Thyroid Cancer. ACTA ACUST UNITED AC 2016. [DOI: 10.11106/ijt.2016.9.2.59] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Ka Hee Yi
- Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Korea
| | - Eun Kyung Lee
- Department of Internal Medicine, Center for Thyroid Cancer, National Cancer Center, Korea
| | - Ho-Cheol Kang
- Department of Internal Medicine, Chonnam National University Medical School, Korea
| | - Yunwoo Koh
- Department of Otorhinolaryngology, College of Medicine, Yonsei University, Korea
| | - Sun Wook Kim
- Department of Medicine, Thyroid Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Korea
| | - In Joo Kim
- Department of Internal Medicine, College of Medicine, Pusan National University, Korea
| | - Dong Gyu Na
- Department of Radiology, Human Medical Imaging and Intervention Center, Korea
| | - Kee-Hyun Nam
- Department of Surgery, College of Medicine, Yonsei University, Korea
| | - So Yeon Park
- Department of Pathology, Seoul National University College of Medicine, Korea
| | - Jin Woo Park
- Department of Surgery, College of Medicine, Chungbuk National University, Korea
| | - Sang Kyun Bae
- Department of Nuclear Medicine, Inje University College of Medicine, Korea
| | - Seung-Kuk Baek
- Department of Otorhinolaryngology, College of Medicine, Korea University, Korea
| | - Jung Hwan Baek
- Department of Radiology, University of Ulsan College of Medicine, Korea
| | - Byung-Joo Lee
- Department of Otorhinolaryngology, College of Medicine, Pusan National University, Korea
| | - Ki-Wook Chung
- Department of Surgery, University of Ulsan College of Medicine, Korea
| | - Yuh-Seog Jung
- Department of Otorhinolaryngology, Center for Thyroid Cancer, National Cancer Center, Korea
| | - Gi Jeong Cheon
- Department of Nuclear Medicine, Seoul National University College of Medicine, Korea
| | - Won Bae Kim
- Department of Internal Medicine, University of Ulsan College of Medicine, Korea
| | - Jae Hoon Chung
- Department of Medicine, Thyroid Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Korea
| | - Young-Soo Rho
- Department of Otorhinolaryngology, Hallym University College of Medicine, Korea
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Haugen BR, Alexander EK, Bible KC, Doherty GM, Mandel SJ, Nikiforov YE, Pacini F, Randolph GW, Sawka AM, Schlumberger M, Schuff KG, Sherman SI, Sosa JA, Steward DL, Tuttle RM, Wartofsky L. 2015 American Thyroid Association Management Guidelines for Adult Patients with Thyroid Nodules and Differentiated Thyroid Cancer: The American Thyroid Association Guidelines Task Force on Thyroid Nodules and Differentiated Thyroid Cancer. Thyroid 2016; 26:1-133. [PMID: 26462967 PMCID: PMC4739132 DOI: 10.1089/thy.2015.0020] [Citation(s) in RCA: 8402] [Impact Index Per Article: 1050.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Thyroid nodules are a common clinical problem, and differentiated thyroid cancer is becoming increasingly prevalent. Since the American Thyroid Association's (ATA's) guidelines for the management of these disorders were revised in 2009, significant scientific advances have occurred in the field. The aim of these guidelines is to inform clinicians, patients, researchers, and health policy makers on published evidence relating to the diagnosis and management of thyroid nodules and differentiated thyroid cancer. METHODS The specific clinical questions addressed in these guidelines were based on prior versions of the guidelines, stakeholder input, and input of task force members. Task force panel members were educated on knowledge synthesis methods, including electronic database searching, review and selection of relevant citations, and critical appraisal of selected studies. Published English language articles on adults were eligible for inclusion. The American College of Physicians Guideline Grading System was used for critical appraisal of evidence and grading strength of recommendations for therapeutic interventions. We developed a similarly formatted system to appraise the quality of such studies and resultant recommendations. The guideline panel had complete editorial independence from the ATA. Competing interests of guideline task force members were regularly updated, managed, and communicated to the ATA and task force members. RESULTS The revised guidelines for the management of thyroid nodules include recommendations regarding initial evaluation, clinical and ultrasound criteria for fine-needle aspiration biopsy, interpretation of fine-needle aspiration biopsy results, use of molecular markers, and management of benign thyroid nodules. Recommendations regarding the initial management of thyroid cancer include those relating to screening for thyroid cancer, staging and risk assessment, surgical management, radioiodine remnant ablation and therapy, and thyrotropin suppression therapy using levothyroxine. Recommendations related to long-term management of differentiated thyroid cancer include those related to surveillance for recurrent disease using imaging and serum thyroglobulin, thyroid hormone therapy, management of recurrent and metastatic disease, consideration for clinical trials and targeted therapy, as well as directions for future research. CONCLUSIONS We have developed evidence-based recommendations to inform clinical decision-making in the management of thyroid nodules and differentiated thyroid cancer. They represent, in our opinion, contemporary optimal care for patients with these disorders.
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Affiliation(s)
| | - Erik K. Alexander
- Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | | | | | - Susan J. Mandel
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | | | | | - Gregory W. Randolph
- Massachusetts Eye and Ear Infirmary, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Anna M. Sawka
- University Health Network, University of Toronto, Toronto, Ontario, Canada
| | | | | | | | - Julie Ann Sosa
- Duke University School of Medicine, Durham, North Carolina
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McLeod DS, Jonklaas J, Brierley JD, Ain KB, Cooper DS, Fein HG, Haugen BR, Ladenson PW, Magner J, Ross DS, Skarulis MC, Steward DL, Xing M, Litofsky DR, Maxon HR, Sherman SI. Reassessing the NTCTCS Staging Systems for Differentiated Thyroid Cancer, Including Age at Diagnosis. Thyroid 2015. [PMID: 26203804 PMCID: PMC4589102 DOI: 10.1089/thy.2015.0148] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND Thyroid cancer is unique for having age as a staging variable. Recently, the commonly used age cut-point of 45 years has been questioned. OBJECTIVE This study assessed alternate staging systems on the outcome of overall survival, and compared these with current National Thyroid Cancer Treatment Cooperative Study (NTCTCS) staging systems for papillary and follicular thyroid cancer. METHODS A total of 4721 patients with differentiated thyroid cancer were assessed. Five potential alternate staging systems were generated at age cut-points in five-year increments from 35 to 70 years, and tested for model discrimination (Harrell's C-statistic) and calibration (R(2)). The best five models for papillary and follicular cancer were further tested with bootstrap resampling and significance testing for discrimination. RESULTS The best five alternate papillary cancer systems had age cut-points of 45-50 years, with the highest scoring model using 50 years. No significant difference in C-statistic was found between the best alternate and current NTCTCS systems (p = 0.200). The best five alternate follicular cancer systems had age cut-points of 50-55 years, with the highest scoring model using 50 years. All five best alternate staging systems performed better compared with the current system (p = 0.003-0.035). There was no significant difference in discrimination between the best alternate system (cut-point age 50 years) and the best system of cut-point age 45 years (p = 0.197). CONCLUSIONS No alternate papillary cancer systems assessed were significantly better than the current system. New alternate staging systems for follicular cancer appear to be better than the current NTCTCS system, although they require external validation.
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Affiliation(s)
- Donald S.A. McLeod
- Department of Endocrinology and Diabetes, Royal Brisbane and Women's Hospital, Herston, Australia
- Population Health Department, QIMR Berghofer Medical Research Institute, Herston, Australia
- School of Medicine, University of Queensland, Herston, Australia
| | - Jacqueline Jonklaas
- Division of Endocrinology, Department of Medicine, Georgetown University Medical Center, Washington, District of Columbia
| | - James D. Brierley
- Department of Radiation Oncology, Princess Margaret Hospital, Toronto, Canada
| | - Kenneth B. Ain
- Department of Internal Medicine, Veterans Affairs Medical Center and University of Kentucky, Lexington, Kentucky
| | - David S. Cooper
- Division of Endocrinology, Diabetes, and Metabolism, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Henry G. Fein
- Division of Endocrinology and Metabolism, Sinai Hospital, Baltimore, Maryland
| | - Bryan R. Haugen
- Division of Endocrinology, Metabolism, and Diabetes, University of Colorado School of Medicine, Aurora, Colorado
| | - Paul W. Ladenson
- Division of Endocrinology, Diabetes, and Metabolism, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - James Magner
- Genzyme, a Sanofi Company, Cambridge, Massachusetts
| | - Douglas S. Ross
- Thyroid Unit, Massachusetts General Hospital, Boston, Massachusetts
| | - Monica C. Skarulis
- Diabetes, Endocrinology, Obesity Branch, National Institutes of Health, Bethesda, Maryland
| | - David L. Steward
- Department of Head and Neck Surgery, University of Cincinnati Medical Center, Cincinnati, Ohio
| | - Mingzhao Xing
- Division of Endocrinology, Diabetes, and Metabolism, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Danielle R. Litofsky
- Department of Endocrine Neoplasia and Hormonal Disorders, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Harry R. Maxon
- Department of Nuclear Medicine, University of Cincinnati Medical Center, Cincinnati, Ohio
| | - Steven I. Sherman
- Department of Endocrine Neoplasia and Hormonal Disorders, The University of Texas MD Anderson Cancer Center, Houston, Texas
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Zaman MU, Fatima N, Padhy AK, Zaman U. Controversies about radioactive iodine-131 remnant ablation in low risk thyroid cancers: are we near a consensus? Asian Pac J Cancer Prev 2015; 14:6209-13. [PMID: 24377506 DOI: 10.7314/apjcp.2013.14.11.6209] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Well differentiated thyroid cancers (WDTC), including papillary (80%) and follicular (10%) types, are the most common endocrine cancers globally. Over the last few decades most the diagnosed cases have fallen into low risk categories. Radioactive iodine-131 (RAI) has an established role in reducing recurrence and improving the survival in high risk patients. In patients with primary tumor size <1 cm, RAI is not recommended by many thyroid societies. However, low risk WDTC has been an arena of major controversies, most importantly the role and dose of adjuvant RAI for remnant ablation to minimize chances of recurrence and improving survival. This review is an attempt to update readers about the previous and existing practice based on results of non- randomized trials and evolving trends fueled by recently published randomized studies.
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Affiliation(s)
- Maseeh Uz Zaman
- Department of Radiology, The Aga Khan University Hospital, Karachi, Pakistan E-mail :
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Díez JJ, Grande E, Iglesias P. Ablación posquirúrgica con radioyodo en pacientes con carcinoma diferenciado de tiroides de bajo riesgo. Med Clin (Barc) 2015; 144:35-41. [DOI: 10.1016/j.medcli.2014.01.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Accepted: 01/15/2014] [Indexed: 10/25/2022]
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Kiernan CM, Parikh AA, Parks LL, Solórzano CC. Use of radioiodine after thyroid lobectomy in patients with differentiated thyroid cancer: does it change outcomes? J Am Coll Surg 2014; 220:617-25. [PMID: 25667136 DOI: 10.1016/j.jamcollsurg.2014.12.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Accepted: 12/09/2014] [Indexed: 11/25/2022]
Abstract
BACKGROUND Radioiodine (RAI) lobe ablation in lieu of completion thyroidectomy is not recommended. This study describes RAI use patterns and outcomes in patients with well-differentiated thyroid cancer (DTC) after thyroid lobectomy (TL). STUDY DESIGN A total of 170,330 patients diagnosed with DTC between 1998 and 2011 were identified using the National Cancer Database. Demographic, tumor, and treatment variables were analyzed using both univariate and multivariate regression. RESULTS A total of 32,119 patients (20%) underwent TL as the definitive procedure. Mean age at diagnosis was 48 years, median tumor size was 1 cm, 4% had extrathyroidal extension, 4% had positive lymph nodes, and <1% distant metastases. Radioiodine was administered to 24% of patients in the TL cohort and represented 10% of the overall RAI use. In multivariate analysis, RAI use was associated with age younger than 45 years (odds ratio [OR] = 1.51), community facilities (OR = 1.26), ≥ 1 cm tumors (OR = 5.67), stage II (OR = 1.54) or III (OR = 2.05), positive lymph nodes (OR = 1.78), and extrathyroidal extension (OR = 1.36). On both univariate and multivariate analysis, RAI after TL was associated with improved survival at both 5 and 10 years follow-up (97% vs 95% and 91% vs 89%, respectively; hazard ratio = 0.53; 95% CI, 0.38-0.72; p < 0.001) CONCLUSIONS: Nearly one quarter of TL patients received RAI. The strongest predictors of RAI use were larger cancers and advanced stage. Use of RAI in these patients was associated with improved overall survival. Future studies and guidelines will need to more clearly address this practice and educate providers about the appropriate use of RAI in TL patients.
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Affiliation(s)
- Colleen M Kiernan
- Division of Surgical Oncology/Endocrine Surgery, Vanderbilt University, Nashville, TN
| | - Alexander A Parikh
- Division of Surgical Oncology/Endocrine Surgery, Vanderbilt University, Nashville, TN
| | - Lee L Parks
- Division of Diabetes, Endocrinology, and Metabolism, Vanderbilt University, Nashville, TN
| | - Carmen C Solórzano
- Division of Surgical Oncology/Endocrine Surgery, Vanderbilt University, Nashville, TN.
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Lepoutre-Lussey C, Deandreis D, Leboulleux S, Schlumberger M. Postoperative radioactive iodine administration for differentiated thyroid cancer patients. Curr Opin Endocrinol Diabetes Obes 2014; 21:363-71. [PMID: 25119656 DOI: 10.1097/med.0000000000000100] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW Radioactive iodine (RAI) is administered postoperatively to the majority of thyroid cancer patients. No available study has demonstrated any benefit in low-risk patients. RECENT FINDINGS RAI should be used selectively in low and intermediate-risk patients, based on the surgical and pathological reports and on postoperative serum thyroglobulin level and neck ultrasonography. When used, a low activity (30 mCi) is administered following recombinant human thyrotropin stimulation. High-risk patients are treated with a high activity of RAI (100 mCi or more). SUMMARY RAI is not administered in many low-risk patients who can be reliably followed up with serum thyroglobulin determination on L-thyroxine treatment and neck ultrasonography. RAI may be administered in case of abnormality, and this delay will not reduce the chance of cure.
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Tsirona S, Vlassopoulou V, Tzanela M, Rondogianni P, Ioannidis G, Vassilopoulos C, Botoula E, Trivizas P, Datseris I, Tsagarakis S. Impact of early vs late postoperative radioiodine remnant ablation on final outcome in patients with low-risk well-differentiated thyroid cancer. Clin Endocrinol (Oxf) 2014; 80:459-63. [PMID: 23895145 DOI: 10.1111/cen.12301] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2013] [Revised: 07/10/2013] [Accepted: 07/21/2013] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Postoperative radioiodine remnant ablation (RRA) represents an adjunctive therapeutic modality in patients with differentiated thyroid cancer (DTC). The impact of late vs early RRA on the outcome of DTC is currently unclear. The aim of the study was to evaluate the outcome of patients with DTC according to RRA timing. DESIGN RETROSPECTIVE STUDY PATIENTS A total of 107 TNM stage 1 DTC patients were divided into two groups. In group A (n = 50), RRA was administered in less than 4·7 months median 3·0 (range 0·8-4·7), while in group B (n = 57) in more than 4·7 months median 6 (4·8-30·3) after thyroidectomy. Remission was achieved when stimulated serum Tg levels were undetectable, in the absence of local recurrence or cervical lymph node metastases on the neck ultrasound. RESULTS All patients underwent near-total thyroidectomy. The mean age at diagnosis was 49·3 years (range: 18-79 years). There were no statistically significant differences in the histological subtype, the TNM stage, the dose of radioiodine and the time of follow-up, between the two groups. After the RRA treatment, 44 group A patients (88%) were in remission and 6 (12%) in persistence; while in group B, 52 (91·2%) were in remission, 1 (1·8%) in persistence and 4 (7%) in recurrence. At their latest follow-up median 87·3 (23·3-251·6 months), all patients were in remission, either as a result of further iodine radioiodine therapy (in 11 patients) or watchful monitoring. CONCLUSIONS The timing of RRA seems to have no effect on the long-term outcome of the disease. Therefore, urgency for radioiodine ablation in patients with low-risk thyroid cancer is not recommended.
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MESH Headings
- Adolescent
- Adult
- Aged
- Carcinoma, Papillary, Follicular/epidemiology
- Carcinoma, Papillary, Follicular/pathology
- Carcinoma, Papillary, Follicular/radiotherapy
- Carcinoma, Papillary, Follicular/surgery
- Combined Modality Therapy
- Female
- Humans
- Iodine Radioisotopes/therapeutic use
- Male
- Middle Aged
- Neoplasm Staging
- Neoplasm, Residual
- Postoperative Period
- Radiotherapy, Adjuvant
- Retrospective Studies
- Thyroid Neoplasms/epidemiology
- Thyroid Neoplasms/pathology
- Thyroid Neoplasms/radiotherapy
- Thyroid Neoplasms/surgery
- Thyroidectomy
- Time Factors
- Treatment Outcome
- Young Adult
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Affiliation(s)
- Sofia Tsirona
- Department of Endocrinology, Diabetes and Metabolism, Evangelismos Hospital, Athens, Greece
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McLeod DSA, Cooper DS, Ladenson PW, Ain KB, Brierley JD, Fein HG, Haugen BR, Jonklaas J, Magner J, Ross DS, Skarulis MC, Steward DL, Maxon HR, Sherman SI. Prognosis of differentiated thyroid cancer in relation to serum thyrotropin and thyroglobulin antibody status at time of diagnosis. Thyroid 2014; 24:35-42. [PMID: 23731273 PMCID: PMC3887423 DOI: 10.1089/thy.2013.0062] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Serum thyrotropin (TSH) concentration and thyroid autoimmunity may be of prognostic importance in differentiated thyroid cancer (DTC). Preoperative serum TSH level has been associated with higher DTC stage in cross-sectional studies; data are contradictory on the significance of thyroid autoimmunity at the time of diagnosis. OBJECTIVE We sought to assess whether preoperative serum TSH and perioperative antithyroglobulin antibodies (TgAb) were associated with thyroid cancer stage and outcome in DTC patients followed by the National Thyroid Cancer Treatment Cooperative Study, a large multicenter thyroid cancer registry. METHODS Patients registered after 1996 with available preoperative serum TSH (n=617; the TSH cohort) or perioperative TgAb status (n=1770; the TgAb cohort) were analyzed for tumor stage, persistent disease, recurrence, and overall survival (OS; median follow-up, 5.5 years). Parametric tests assessed log-transformed TSH, and categorical variables were tested with chi square. Disease-free survival (DFS) and OS was assessed with Cox models. RESULTS Geometric mean serum TSH levels were higher in patients with higher-stage disease (Stage III/IV=1.48 vs. 1.02 mU/L for Stages I/II; p=0.006). The relationship persisted in those aged ≥45 years after adjusting for sex (p=0.01). Gross extrathyroidal extension (p=0.03) and presence of cervical lymph node metastases (p=0.003) were also significantly associated with higher serum TSH. Disease recurrence and all-cause mortality occurred in 37 and 38 TSH cohort patients respectively, which limited the power for survival analysis. Positive TgAb was associated with lower stage on univariate analysis (positive TgAb in 23.4% vs. 17.8% of Stage I/II vs. III/IV patients, respectively; p=0.01), although the relationship lost significance when adjusting for age and sex (p=0.34). Perioperative TgAb was not an independent predictor of DFS (hazard ratio=1.12 [95% confidence interval=0.74-1.69]) or OS (hazard ratio=0.98 [95% confidence interval=0.56-1.72]). CONCLUSIONS Preoperative serum TSH level is associated with higher DTC stage, gross extrathyroidal extension, and neck node metastases. Perioperative TgAb is not an independent predictor of DTC prognosis. A larger cohort is required to assess whether preoperative serum TSH level predicts recurrence or mortality.
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Affiliation(s)
- Donald S A McLeod
- 1 Department of Internal Medicine & Aged Care, Royal Brisbane and Women's Hospital , Herston, Australia
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Nascimento C, Borget I, Troalen F, Al Ghuzlan A, Deandreis D, Hartl D, Lumbroso J, Chougnet CN, Baudin E, Schlumberger M, Leboulleux S. Ultrasensitive serum thyroglobulin measurement is useful for the follow-up of patients treated with total thyroidectomy without radioactive iodine ablation. Eur J Endocrinol 2013; 169:689-93. [PMID: 23939918 DOI: 10.1530/eje-13-0386] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
CONTEXT Thyroglobulin (Tg) measurement is a major tool for the follow-up of differentiated thyroid cancer (DTC) patients; however, in patients who do not undergo radioactive iodine (RAI) ablation, normal ultrasensitive Tg levels measured under levothyroxine treatment (usTg/l-T4) are not well defined. OBJECTIVE AND DESIGN This single-center retrospective study assessed usTg/l-T4 level in 86 consecutive patients treated with total thyroidectomy without RAI ablation for low-risk DTC (n=77) or for tumors of uncertain malignant potential (TUMP) (n=9). RESULTS DTCS were classified as PT1, PT2, and PT3 in 75, 1, and 1 case respectively and PN0, PN1, and PNX in 40, 6, and 31 respectively. following surgery, ten patients had TG antibodieS (TGAB). Among those without TGAB, the first USTG/L-T4 determination obtained at a mean time of 9 months after surgery was 0.1NG/ML in 62% of cases, 0.3NG/ML in 82% of cases, 1NG/ML in 91%, and 2NG/ML in 96% of cases. after a median follow-up of 2.5 years (range: 0.6-7.2 years), one patient had persistent disease with an usTg/l-T4 at 11 ng/ml and an abnormal neck ultrasonography (US) and two patients had usTg/l-T4 level >2 ng/ml (3.9 and 4.9 ng/ml) with a normal neck US. Within the first 2 years following total thyroidectomy without RAI ablation, usTg/l-T4 level is ≤2 ng/ml in 96% of the cases. CONCLUSION After total thyroidectomy, sensitive serum Tg/l-T4 level is ≤2 ng/ml in most patients and can be used for patient follow-up.
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Affiliation(s)
- C Nascimento
- Departments of Nuclear Medicine and Endocrine Oncology
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Abstract
Substantial developments have occurred in the past 5-10 years in clinical translational research of thyroid cancer. Diagnostic molecular markers, such as RET-PTC, RAS, and BRAF(V600E) mutations; galectin 3; and a new gene expression classifier, are outstanding examples that have improved diagnosis of thyroid nodules. BRAF mutation is a prognostic genetic marker that has improved risk stratification and hence tailored management of patients with thyroid cancer, including those with conventionally low risks. Novel molecular-targeted treatments hold great promise for radioiodine-refractory and surgically inoperable thyroid cancers as shown in clinical trials; such treatments are likely to become a component of the standard treatment regimen for patients with thyroid cancer in the near future. These novel molecular-based management strategies for thyroid nodules and thyroid cancer are the most exciting developments in this unprecedented era of molecular thyroid-cancer medicine.
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Affiliation(s)
- Mingzhao Xing
- Laboratory for Cellular and Molecular Thyroid Research, Division of Endocrinology and Metabolism, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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Haymart MR, Muenz DG, Stewart AK, Griggs JJ, Banerjee M. Disease severity and radioactive iodine use for thyroid cancer. J Clin Endocrinol Metab 2013; 98:678-86. [PMID: 23322816 PMCID: PMC3565122 DOI: 10.1210/jc.2012-3160] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT Although variation in radioactive iodine (RAI) use for thyroid cancer has been demonstrated, the role of region and nonclinical correlates of use within risk groups has not been investigated. OBJECTIVE The objective of the study was to determine the correlates of RAI use within risk groups. DESIGN/SETTING/PATIENTS Use of RAI was evaluated across 9 US regions in 85 948 patients with well-differentiated thyroid cancer diagnosed between 2004 and 2008 at 986 hospitals associated with the US National Cancer Database. Cancers were then categorized as low risk (tumor size ≤ 1 cm and American Joint Committee on Cancer stage I disease), medium risk (neither low nor high-risk), and high risk (American Joint Committee on Cancer stage III or IV). Within each risk stratum, the role of region and nonclinical correlates of RAI use were evaluated using hierarchical logistic regression. MAIN OUTCOME MEASURE Use of RAI was measured. RESULTS Rates of RAI use varied across geographic regions from 49% to 66%. Regional differences persisted after controlling for patient and hospital characteristics and evaluating less vs more intensive regions within low-risk [odds ratio (OR) 0.36 (95% confidence interval [CI] 0.25-0.53)], medium-risk [OR 0.23 (95% CI 0.16-0.34)], and high-risk cancers [OR 0.30 (95% CI 0.19-0.49)]. Patterns of RAI use were similar in medium- and high-risk patients. The most nonclinical correlates of use were in low-risk patients. CONCLUSION Similar treatment patterns for the heterogeneous medium-risk thyroid cancer patients compared with the high-risk patients suggest more intensive management in patients with medium-risk disease. The large number of nonclinical correlates of RAI use, including region, imply controversy over indications for RAI.
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Affiliation(s)
- M R Haymart
- Department of Medicine, University of Michigan, North Campus Research Complex, 2800 Plymouth Road Building 16, Room 408E, Ann Arbor, Michigan 48109-2800, USA.
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To treat or not to treat: the role of adjuvant radioiodine therapy in thyroid cancer patients. JOURNAL OF ONCOLOGY 2012. [PMID: 23193402 PMCID: PMC3502018 DOI: 10.1155/2012/707156] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Radioactive iodine (RAI) is used in treatment of patients with differentiated papillary and follicular thyroid cancer. It is typically used after thyroidectomy, both as a means of imaging to detect residual thyroid tissue or metastatic disease, as well as a means of treatment by ablation if such tissue is found. In this paper, we discuss the indications for and the mechanisms of RAI in the treatment of patients with thyroid cancer. We discuss the attendant risks and benefits that come with its use, as well as techniques used to optimize its effectiveness as an imaging tool and a therapeutic modality.
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Avram AM. Radioiodine scintigraphy with SPECT/CT: an important diagnostic tool for thyroid cancer staging and risk stratification. J Nucl Med 2012; 42:170-80. [PMID: 22550280 DOI: 10.2967/jnumed.111.104133] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Staging and risk stratification predicate the postoperative management of thyroid cancer patients, determining not only the need for (131)I therapy or alternative options (conservative management without ablation, surgical reintervention, or external-beam radiation therapy) but also the long-term follow-up strategy. This paper presents the progress made in the field of thyroid cancer imaging by application of SPECT/CT technology to radioiodine scintigraphy in both diagnostic and post-therapy settings and reviews the impact of fusion radioiodine imaging on staging, risk stratification, and clinical management of patients with thyroid cancer. In addition, this paper addresses the role of preablation radioiodine imaging and provides nuclear medicine physicians with the background knowledge required for integrating information from fusion imaging into the clinical and histopathologic risk stratification for developing an individualized treatment plan for patients with thyroid cancer.
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Affiliation(s)
- Anca M Avram
- Division of Nuclear Medicine/Radiology, University of Michigan Medical Center, Ann Arbor, Michigan 48109-5028, USA.
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