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Duarte FB, Faro FN, Ward LS, Cury AN, Ferraz C, Padovani RDP. Impact of a simple informative leaflet on Brazilian doctors' attitudes towards active surveillance of thyroid microcarcinomas. Heliyon 2024; 10:e37300. [PMID: 39296249 PMCID: PMC11409082 DOI: 10.1016/j.heliyon.2024.e37300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 08/17/2024] [Accepted: 08/30/2024] [Indexed: 09/21/2024] Open
Abstract
Introduction Active surveillance (AS) is increasingly recognized as an appropriate strategy for selected patients with papillary thyroid microcarcinomas (PTMC). However, some factors, including physician-related ones, hinder its widespread adoption. Methods To explore the prevailing barriers and the impact of information on attitudes towards AS implementation, we developed a questionnaire that was completed before and after reading a simple information leaflet by 317 doctors working in different work environments. This leaflet provides information about the overdiagnosis of PTMC, the concept of AS, results of early studies, and main advantages and disadvantages of AS. Results We observed a greater resistance to AS among male physicians who were more likely to maintain the initial recommendation for surgery or referral to a head and neck surgeon than female physicians (77 % vs. 46 %, p = 0.01), regardless of their medical specialty. Fear of disease progression and of the patient losing follow-up were the main concerns. Reading the educational material significantly increased the number of physicians who endorsed AS as an initial approach to PTMC without risk factors from 14 % to 34 % (p < 0,001). This change in attitude was even more significant when doctors were confronted with a case of PTMC in an elderly patient. Gender, medical specialty, age range and academic environment were the factors that were determinants on the influence of the informative leaflet on the decision-making. The leaflet also increased the number of doctors who considered themselves capable of dealing with this patient profile; however, 17 % declared that the place where they worked would not be able to meet the need for periodic assessments and necessary examinations. This was particularly true for the 20 % of the professionals working in rural areas. Conclusion A simple educational leaflet with basic information presented via social media increased the number of Brazilian physicians who endorsed AS for PTMC management and proved to be a facilitating tool for understanding and accepting it. Our results suggest that this method can be easily extended to larger population.
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Affiliation(s)
- Fernanda Barbosa Duarte
- Thyroid Diseases Unit - Division of Endocrinology, Department of Medicine/ Irmandade da Santa Casa de Misericórdia de São Paulo, São Paulo, SP, Brazil
| | - Fernanda Nascimento Faro
- Thyroid Diseases Unit - Division of Endocrinology, Department of Medicine/ Irmandade da Santa Casa de Misericórdia de São Paulo, São Paulo, SP, Brazil
| | - Laura Sterian Ward
- Medical Sciences University, State University of Campinas (FCM/Unicamp), Campinas, SP, Brazil
| | - Adriano Namo Cury
- Thyroid Diseases Unit - Division of Endocrinology, Department of Medicine/ Irmandade da Santa Casa de Misericórdia de São Paulo, São Paulo, SP, Brazil
| | - Carolina Ferraz
- Thyroid Diseases Unit - Division of Endocrinology, Department of Medicine/ Irmandade da Santa Casa de Misericórdia de São Paulo, São Paulo, SP, Brazil
| | - Rosália do Prado Padovani
- Thyroid Diseases Unit - Division of Endocrinology, Department of Medicine/ Irmandade da Santa Casa de Misericórdia de São Paulo, São Paulo, SP, Brazil
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Sanabria A, Ferraz C, Ku CHC, Padovani R, Palacios K, Paz JL, Roman A, Smulever A, Vaisman F, Pitoia F. Implementing active surveillance for low-risk thyroid carcinoma into clinical practice: collaborative recommendations for Latin America. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2024; 68:e230371. [PMCID: PMC11192484 DOI: 10.20945/2359-4292-2023-0371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 02/08/2024] [Indexed: 08/03/2024]
Abstract
The incidence of thyroid cancer is increasing globally, but mortality rates have remained steady. Many patients with thyroid cancer have low-risk, nonmetastatic intrathyroidal tumors smaller than 2 cm. Active surveillance has shown benefits in these patients, but the adoption of this approach remains below standard in Latin America. The purpose of this article is to identify ways to improve the incorporation of active surveillance into clinical practice for patients with low-risk thyroid carcinoma in Latin America, taking into consideration cultural and geographic factors. Current recommendations include three steps involving patient participation. The first step, which consists of the initial clinical examination, has eight factors requiring special attention. Anxiety must be managed while considering individual, disease-related, cognitive, and environmental aspects. Terms like "overdiagnosis", "incidentaloma," and "overtreatment" must be explained to the patient. Implementing precise terminology contributes to adequate disease perception, substantially reducing stress and anxiety. Clarifying the nonprogressive nature of thyroid cancer helps dispel myths surrounding the disease. The second step includes advice about procedures and guidelines for patients who choose active surveillance. Flexible monitoring techniques should be implemented, with regular check-ins scheduled based on patient needs. Reasons for adjusting treatment must be clearly communicated to the patient, and changes in preference regarding active surveillance should be considered in advance. The third step includes assistance during follow-up. Patients must be educated about ultrasound results and receive surgical indications from specialized physicians. The effectiveness of active surveillance can be reinforced by explaining to the patients the dynamics of changes in nodule size using clear and concise visual aids.
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Affiliation(s)
- Alvaro Sanabria
- Universidad de AntioquiaFacultad de MedicinaDepartamento de CirugíaMedellínColombiaDepartamento de Cirugía, Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia
- Centro de Excelencia en Enfermedades de Cabeza y CuelloMedellínColombiaCentro de Excelencia en Enfermedades de Cabeza y Cuello (CEXCA), Medellín, Colombia
| | - Carolina Ferraz
- Irmandade da Santa Casa de Misericórdia de São PauloDivisão de EndocrinologiaDepartamento de MedicinaSão PauloSPBrasilDivisão de Endocrinologia, Departamento de Medicina, Irmandade da Santa Casa de Misericórdia de São Paulo, São Paulo, SP, Brasil
| | - Chih Hao Chen Ku
- Universidad de Costa RicaDepartamento de Farmacología Clínica y ToxicologíaSan JoséCosta RicaDepartamento de Farmacología Clínica y Toxicología, Universidad de Costa Rica, Clínica Los Yoses, San José, Costa Rica
| | - Rosalia Padovani
- Irmandade da Santa Casa de Misericórdia de São PauloDivisão de EndocrinologiaDepartamento de MedicinaSão PauloSPBrasilDivisão de Endocrinologia, Departamento de Medicina, Irmandade da Santa Casa de Misericórdia de São Paulo, São Paulo, SP, Brasil
| | - Karen Palacios
- Clínica Diagnóstica Especializada VIDDivisión de EndocrinologíaMedellínColombiaDivisión de Endocrinología, Clínica Diagnóstica Especializada VID, Medellín, Colombia
| | - José Luis Paz
- Universidad Nacional Mayor de San MarcosHospital Nacional Edgardo Rebagliati MartinsFacultad de MedicinaLimaPerúDivisión de Endocrinología, Hospital Nacional Edgardo Rebagliati Martins, Departamento de Medicina, Facultad de Medicina, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Alejandro Roman
- Universidad de AntioquiaHospital Universitario San Vicente FundaciónFacultad de MedicinaMedellínColombiaSección de Endocrinología, Departamento de Medicina, Facultad de Medicina, Universidad de Antioquia, Hospital Universitario San Vicente Fundación, Medellín, Colombia
| | - Anabella Smulever
- Universidad de Buenos AiresHospital de ClínicasDivisión de EndocrinologíaBuenos AiresArgentinaDivisión de Endocrinología, Hospital de Clínicas, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Fernanda Vaisman
- Universidade Federal do Rio de JaneiroInstituto Nacional do CâncerFaculdade de MedicinaRio de JaneiroRJBrasilServiço de Oncoendocrinologia, Serviço de Endocrinologia, Faculdade de Medicina, Instituto Nacional do Câncer (Inca), Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - Fabian Pitoia
- Universidad de Buenos AiresHospital de ClínicasDivisión de EndocrinologíaBuenos AiresArgentinaDivisión de Endocrinología, Hospital de Clínicas, Universidad de Buenos Aires, Buenos Aires, Argentina
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3
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Dora JM, Scheffel RS. Cervical lymph node metastases in patients with differentiated thyroid cancer: A new (and more relevant) indication of active surveillance? ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2024; 68:e230436. [PMID: 38709152 PMCID: PMC11081043 DOI: 10.20945/2359-4292-2023-0436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 02/17/2024] [Indexed: 05/07/2024]
Affiliation(s)
- Jose Miguel Dora
- Unidade de Tireoide, Hospital de Clínicas de Porto Alegre, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 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
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4
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Sawka AM, Ghai S, Rotstein L, Irish JC, Pasternak JD, Monteiro E, Chung J, Zahedi A, Su J, Xu W, Jones JM, Gafni A, Baxter NN, Goldstein DP. Decision Regret Following the Choice of Surgery or Active Surveillance for Small, Low-Risk Papillary Thyroid Cancer: A Prospective Cohort Study. Thyroid 2024; 34:626-634. [PMID: 38481111 PMCID: PMC11296158 DOI: 10.1089/thy.2023.0634] [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] [Indexed: 04/10/2024]
Abstract
Background: It is important to understand cancer survivors' perceptions about their treatment decisions and quality of life. Methods: We performed a prospective observational cohort study of Canadian patients with small (<2 cm) low-risk papillary thyroid cancer (PTC) who were offered the choice of active surveillance (AS) or surgery (Clinicaltrials.gov NCT03271892). Participants completed a questionnaire one year after their treatment decision. The primary intention-to-treat analysis compared the mean decision regret scale total score between patients who chose AS or surgery. A secondary analysis examined one-year decision regret score according to treatment status. Secondary outcomes included quality of life, mood, fear of disease progression, and body image perception. We adjusted for age, sex, and follow-up duration in linear regression analyses. Results: The overall questionnaire response rate was 95.5% (191/200). The initial treatment choices of respondents were AS 79.1% (151/191) and surgery 20.9% (40/191). The mean age was 53 years (standard deviation [SD] 15 years) and 77% (147/191) were females. In the AS group, 7.3% (11/151) of patients crossed over to definitive treatment (two for disease progression) before the time of questionnaire completion. The mean level of decision regret did not differ significantly between patients who chose AS (mean 22.4, SD 13.9) or surgery (mean 20.9, SD 12.2) in crude (p = 0.730) or adjusted (p = 0.29) analyses. However, the adjusted level of decision regret was significantly higher in patients who initially chose AS and crossed over to surgery (beta coefficient 10.1 [confidence interval; CI 1.3-18.9], p = 0.02), compared with those remaining under AS. In secondary adjusted analyses, respondents who chose surgery reported that symptoms related to their cancer or its treatment interfered with life to a greater extent than those who chose AS (p = 0.02), but there were no significant group differences in the levels of depression, anxiety, fear of disease progression, or overall body image perception. Conclusions: In this study of patients with small, low-risk PTC, the mean level of decision regret pertaining to the initial disease management choice was relatively low after one year and it did not differ significantly for respondents who chose AS or surgery.
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Affiliation(s)
- Anna M. Sawka
- Division of Endocrinology, University Health Network and University of Toronto, Toronto, Canada
| | - Sangeet Ghai
- Joint Department of Medical Imaging, University Health Network-Mt Sinai Hospital-Women's College Hospital, University of Toronto, Toronto, Canada
| | - Lorne Rotstein
- Department of Surgery, University Health Network and University of Toronto, Toronto, Canada
| | - Jonathan C. Irish
- Department of Otolaryngology-Head and Neck Surgery/Surgical Oncology, Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Jesse D. Pasternak
- Department of Surgery, University Health Network and University of Toronto, Toronto, Canada
| | - Eric Monteiro
- Department of Otolaryngology and Head and Neck Surgery, Mount Sinai Hospital and University of Toronto, Toronto, Canada
| | - Janet Chung
- Department of Otolaryngology and Head and Neck Surgery, Trillium Health Partners and University of Toronto, Toronto, Canada
| | - Afshan Zahedi
- Division of Endocrinology, Women's College Hospital and University of Toronto, Toronto, Canada
| | - Jie Su
- Department of Biostatistics, Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Wei Xu
- Department of Biostatistics, Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
- Department of Biostatistics, Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
| | - Jennifer M. Jones
- Department of Psychosocial Oncology, University Health Network and University of Toronto, Toronto, Canada
| | - Amiram Gafni
- Centre for Health Economics and Policy Analysis, Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Canada
| | - Nancy N. Baxter
- Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Australia
| | - David P. Goldstein
- Department of Otolaryngology-Head and Neck Surgery/Surgical Oncology, Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
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5
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Abelleira E, Jerkovich F. Dynamic risk assessment in patients with differentiated thyroid cancer. Rev Endocr Metab Disord 2024; 25:79-93. [PMID: 38015344 DOI: 10.1007/s11154-023-09857-7] [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] [Accepted: 11/20/2023] [Indexed: 11/29/2023]
Abstract
The current approach for patients with differentiated thyroid carcinoma should be individualized according to the risk of recurrence, and this stratification could be used to identify the risk of persistent/recurrent disease in three scenarios: preoperatively, immediately postoperatively, and during long-term follow-up. The initial risk of recurrence will tailor the management of the patient in the preoperative and immediate postoperative settings, while the dynamic risk, which considers the responses to treatment, could guide the decision-making process for remnant ablation and long-term management.This review provides a summary of the existing information regarding the dynamic risk of recurrence and recommended management for patients with differentiated thyroid cancer. The application of this approach is essential to avoid unnecessary treatments for most patients who will have a favorable prognosis. On the other hand, it allows specific therapeutic interventions for those patients at high risk of recurrence. In the future, analysis of tumor biology and prospective studies will surely improve the accuracy of recurrence risk prediction.
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Affiliation(s)
- Erika Abelleira
- Division of Endocrinology, Hospital de Clínicas José de San Martín (UBA), University of Buenos Aires, Córdoba 2351, 5th floor, Buenos Aires, C 1120, Argentina.
| | - Fernando Jerkovich
- Division of Endocrinology, Hospital de Clínicas José de San Martín (UBA), University of Buenos Aires, Córdoba 2351, 5th floor, Buenos Aires, C 1120, Argentina
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6
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Smulever A, Pitoia F. Thirty years of active surveillance for low-risk thyroid cancer, lessons learned and future directions. Rev Endocr Metab Disord 2024; 25:65-78. [PMID: 37833520 DOI: 10.1007/s11154-023-09844-y] [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] [Accepted: 10/05/2023] [Indexed: 10/15/2023]
Abstract
Active Surveillance is a non-invasive strategy designed to identify a minority of patients with low-risk papillary thyroid carcinoma who might experience clinical progression and benefit from additional definitive treatments. Global experience suggests that these tumors typically show minimal changes in size during active surveillance, often demonstrating very slow growth or even size reduction. Moreover, the rate of lymph node metastases is low and can be effectively managed through rescue surgery, without impacting cancer-related mortality. However, despite 30 years of experience demonstrating the safety and feasibility of active surveillance for appropriately selected patients, this approach seems to have limited adoption in specific contexts. This limitation can be attributed to various barriers, including disparities in access to accurate information about the indolent nature of this disease and the prevalence of a maximalist mindset among certain patients and medical settings. This review aims to revisit the experience from the last three decades, provide current insights into the clinical outcomes of active surveillance trials, and propose a systematic approach for its implementation. Furthermore, it intends to emphasize the importance of precise patient selection and provides new perspectives in the field.
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Affiliation(s)
- Anabella Smulever
- Division of Endocrinology, Hospital de Clínicas, University of Buenos Aires, Córdoba, Buenos Aires, 2351, Argentina.
- Division of Endocrinology, Instituto de Investigaciones Médicas A. Lanari, University of Buenos Aires, Buenos Aires, Argentina.
| | - Fabian Pitoia
- Division of Endocrinology, Hospital de Clínicas, University of Buenos Aires, Córdoba, Buenos Aires, 2351, Argentina
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7
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Kim MJ, Moon JH, Lee EK, Song YS, Jung KY, Lee JY, Kim JH, Kim K, Park SK, Park YJ. Active Surveillance for Low-Risk Thyroid Cancers: A Review of Current Practice Guidelines. Endocrinol Metab (Seoul) 2024; 39:47-60. [PMID: 38356210 PMCID: PMC10901665 DOI: 10.3803/enm.2024.1937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 01/19/2024] [Accepted: 01/22/2024] [Indexed: 02/16/2024] Open
Abstract
The indolent nature and favorable outcomes associated with papillary thyroid microcarcinoma have prompted numerous prospective studies on active surveillance (AS) and its adoption as an alternative to immediate surgery in managing low-risk thyroid cancer. This article reviews the current status of AS, as outlined in various international practice guidelines. AS is typically recommended for tumors that measure 1 cm or less in diameter and do not exhibit aggressive subtypes on cytology, extrathyroidal extension, lymph node metastasis, or distant metastasis. To determine the most appropriate candidates for AS, factors such as tumor size, location, multiplicity, and ultrasound findings are considered, along with patient characteristics like medical condition, age, and family history. Moreover, shared decision-making, which includes patient-reported outcomes such as quality of life and cost-effectiveness, is essential. During AS, patients undergo regular ultrasound examinations to monitor for signs of disease progression, including tumor growth, extrathyroidal extension, or lymph node metastasis. In conclusion, while AS is a feasible and reliable approach for managing lowrisk thyroid cancer, it requires careful patient selection, effective communication for shared decision-making, standardized follow-up protocols, and a clear definition of disease progression.
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Affiliation(s)
- Min Joo Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Jae Hoon Moon
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Eun Kyung Lee
- Department of Internal Medicine, National Cancer Center, Goyang, Korea
| | - Young Shin Song
- Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea
| | - Kyong Yeun Jung
- Department of Internal Medicine, Nowon Eulji Medical Center, Eulji University, Seoul, Korea
| | - Ji Ye Lee
- Department of Radiology, Seoul National University Hospital, Seoul, Korea
- Deparment of Radiology, Seoul National University College of Medicine, Seoul, Korea
| | - Ji-hoon Kim
- Department of Radiology, Seoul National University Hospital, Seoul, Korea
- Deparment of Radiology, Seoul National University College of Medicine, Seoul, Korea
| | - Kyungsik Kim
- Deparment of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Sue K. Park
- Deparment of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
- Integrated Major in Innovative Medical Science, Seoul National University College of Medicine, Seoul, Korea
| | - Young Joo Park
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, Korea
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Smulever A, Pitoia F. Conservative management of low-risk papillary thyroid carcinoma: a review of the active surveillance experience. Thyroid Res 2023; 16:6. [PMID: 36907911 PMCID: PMC10009928 DOI: 10.1186/s13044-023-00148-6] [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: 10/12/2022] [Accepted: 01/22/2023] [Indexed: 03/14/2023] Open
Abstract
The detection of low-risk thyroid carcinoma has increased in recent decades, although disease-specific mortality remained without changes. The high prevalence of occult carcinomas in autopsy studies, and hence the underlying indolent course of this entity, prompted the emergence of active surveillance as an alternative approach to these tumors. This strategy aims to recognize the minority group of patients who will develop clinical progression and probably benefit from deferred surgery. Experience around the world has shown that during active surveillance these tumors are mostly unchanged in size, with very-slow growth and even a decrease in diameter. Moreover, the rates of lymph node metastases were low and easily handled by rescue surgery, and distant metastases have not been reported. Given the high prevalence of small thyroid carcinomas and the excellent outcomes for observation, active surveillance provides a safe and feasible alternative in properly selected patients with low-risk thyroid cancer.
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Affiliation(s)
- Anabella Smulever
- Division of Endocrinology, Hospital de Clínicas, University of Buenos Aires, Córdoba 2351, 5th floor, Buenos Aires, Argentina
| | - Fabian Pitoia
- Division of Endocrinology, Hospital de Clínicas, University of Buenos Aires, Córdoba 2351, 5th floor, Buenos Aires, Argentina.
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9
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Gaunt A, Moore AR, Huvenne C, Dhami A, Eades M, Balasubramanian SP. Is conservative management of the indeterminate thyroid nodule [Thy3f or Bethesda category IV] safe? Eur Arch Otorhinolaryngol 2022; 279:5905-5911. [PMID: 35881191 DOI: 10.1007/s00405-022-07541-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 07/04/2022] [Indexed: 01/04/2023]
Abstract
PURPOSE The histological diagnosis after diagnostic thyroidectomy for indeterminate thyroid nodules is often non-malignant and some cancers detected are considered 'indolent'. The safety and effectiveness of conservative management in these patients are unclear. The aim of this study was to determine the safety of conservative management of indeterminate thyroid nodules and to explore association between clinical features and pathology in patients undergoing surgery. METHODS This is a retrospective cohort study of patients presenting to a single centre over a 4-year period (2013-2016) with thyroid nodules that were considered indeterminate (thy3f in the UK RCPath classification) on cytology. Demographic data, ultrasound features, follow-up details (in those undergoing conservative management) and histology details (in those undergoing surgery) were collected. RESULTS Of 164 patients that had Thy3f cytology, 34 were initially managed conservatively; however, 4 of these eventually had surgery (due to patient preference). No patient on conservative management had significant disease progression on ultrasound at a median (interquartile range) of 27 (16-40) months. Of the 134 patients that underwent surgery, 26 had thyroid malignancy. The BTA 'U' classification, gender and age (> 55) were not associated with malignancy in these nodules, but larger nodules (> 40 mm) were more likely to be malignant (p = 0.042). CONCLUSIONS Conservative management of indeterminate (Thy3f or Bethesda stage IV) thyroid nodules is safe in the short term and may be indicated in selected cases after appropriate discussion of risks and benefits of surgery.
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Affiliation(s)
- A Gaunt
- Endocrine Surgery Unit, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK.
| | - A R Moore
- Sheffield Medical School, University of Sheffield, Sheffield, UK
| | - C Huvenne
- Sheffield Medical School, University of Sheffield, Sheffield, UK
| | - A Dhami
- Department of Diabetes and Endocrinology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - M Eades
- Endocrine Surgery Unit, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - S P Balasubramanian
- Endocrine Surgery Unit, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
- Department of Oncology and Metabolism, University of Sheffield, Sheffield, UK
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10
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Assessing mPTC Progression during Active Surveillance: Volume or Diameter Increase? J Clin Med 2021; 10:jcm10184068. [PMID: 34575179 PMCID: PMC8471696 DOI: 10.3390/jcm10184068] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 09/02/2021] [Accepted: 09/05/2021] [Indexed: 11/17/2022] Open
Abstract
Active surveillance (AS) is considered an alternative to immediate surgery in micropapillary thyroid carcinoma (mPTC). However, the definition of clinical mPTC progression during AS is controversial. We evaluated changes in tumor size using both tumor diameters and volume in 109 patients with mPTC followed in an AS protocol for a mean period of 31 ± 18 months. At the time of data lock, 19/109 (17.4%) mPTC reached and maintained a volume increase of ≥50%. However, only 3/19 (15.7%) showed progression, according to the diameter increase. The remaining 16 showed a slight diameter growth without reaching the original protocol progression criteria. The mean mPTC growth rate in stable cases was 0.37 mm3/month, while it was significantly greater in the mPTC, which achieved a volume change ≥50% with respect to the other. The two mPTC that developed a significant diameter increase had a growth rate of 41 and 18 mm3/month. Instead, the growth rates of the three mPTC that developed lymph node metastases were 0, 2.5 and 16 mm3/month. The ≥50% volume increase appears to be a too sensitive marker of disease progression, with a downstream higher surgery rate. The assessment of growth rate could distinguish mPTC with high and low growth rates, which would allow us to tailor the algorithm of the evaluations to a more appropriate timing.
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11
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Horiguchi K, Yoshida Y, Iwaku K, Emoto N, Kasahara T, Sato J, Shimura H, Shindo H, Suzuki S, Nagano H, Furuya F, Makita N, Matsumoto F, Manaka K, Mitsutake N, Miyakawa M, Yokoya S, Sugitani I. Position paper from the Japan Thyroid Association task force on the management of low-risk papillary thyroid microcarcinoma (T1aN0M0) in adults. Endocr J 2021; 68:763-780. [PMID: 33762511 DOI: 10.1507/endocrj.ej20-0692] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The incidence of thyroid carcinoma has been increasing worldwide. This is interpreted as an increase in the incidental detection of papillary thyroid microcarcinomas (PTMCs). However, mortality has not changed, suggesting overdiagnosis and overtreatment. Prospective clinical trials of active surveillance for low-risk PTMC (T1aN0M0) have been conducted in two Japanese institutions since the 1990s. Based on the favorable outcomes of these trials, active surveillance has been gradually adopted worldwide. A task force on the management of PTMC in adults organized by the Japan Thyroid Association therefore conducted a systematic review and has produced the present position paper based on the scientific evidence concerning active surveillance. This paper indicates evidence for the increased incidence of PTMC, favorable surgical outcomes for low-risk PTMC, recommended criteria for diagnosis using fine needle aspiration cytology, and evaluation of lymph node metastasis (LNM), extrathyroidal extension (ETE) and distant metastasis. Active surveillance has also been reported with a low incidence of disease progression and no subsequent recurrence or adverse events on survival if conversion surgery was performed at a slightly advanced stage. Active surveillance is a safe and valid strategy for PTMC, because it might preserve physical quality of life and reduce 10-year medical costs. However, some points should be noted when performing active surveillance. Immediate surgery is needed for PTMC showing high-risk features, such as clinical LNM, ETE or distant metastasis. Active surveillance should be performed under an appropriate medical team and should be continued for life.
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Affiliation(s)
- Kazuhiko Horiguchi
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan
| | - Yusaku Yoshida
- Department of Breast and Endocrine Surgery, Tokyo Women's Medical University, Tokyo 162-8666, Japan
| | - Kenji Iwaku
- Sapporo Thyroid Clinic (Ito Hospital), Sapporo 060-0042, Japan
| | - Naoya Emoto
- Diabetes & Thyroid Clinic, Sakura Chuo Hospital, Sakura 285-0014, Japan
| | | | - Junichiro Sato
- Department of Nephrology and Endocrinology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Hiroki Shimura
- Department of Laboratory Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Hisakazu Shindo
- Department of Surgery, Yamashita Thyroid Hospital, Fukuoka 812-0034, Japan
| | - Satoru Suzuki
- Department of Thyroid and Endocrinology, Division of Internal Medicine, Fukushima Medical University Hospital, Fukushima 960-1295, Japan
| | - Hidekazu Nagano
- Department of Molecular Diagnosis, Graduate school of Medicine, Chiba University, Chiba 260-8670, Japan
| | - Fumihiko Furuya
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi 409-3998, Japan
| | - Noriko Makita
- Department of Nephrology and Endocrinology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Fumihiko Matsumoto
- Department of Otorhinolaryngology, Juntendo University Faculty of Medicine, Tokyo 113-8421, Japan
| | - Katsunori Manaka
- Department of Nephrology and Endocrinology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Norisato Mitsutake
- Department of Radiation Medical Sciences, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki 852-8523, Japan
| | - Megumi Miyakawa
- Department of Internal Medicine, Miyakawa Hospital, Kawasaki 210-0802, Japan
| | - Susumu Yokoya
- Thyroid and Endocrine Center, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Iwao Sugitani
- Department of Endocrine Surgery, Nippon Medical School Graduate School of Medicine, Tokyo 113-8603, Japan
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12
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Sugitani I, Ito Y, Takeuchi D, Nakayama H, Masaki C, Shindo H, Teshima M, Horiguchi K, Yoshida Y, Kanai T, Hirokawa M, Hames KY, Tabei I, Miyauchi A. Indications and Strategy for Active Surveillance of Adult Low-Risk Papillary Thyroid Microcarcinoma: Consensus Statements from the Japan Association of Endocrine Surgery Task Force on Management for Papillary Thyroid Microcarcinoma. Thyroid 2021; 31:183-192. [PMID: 33023426 PMCID: PMC7891203 DOI: 10.1089/thy.2020.0330] [Citation(s) in RCA: 194] [Impact Index Per Article: 64.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Background: The question of how to manage patients with low-risk papillary thyroid microcarcinoma (PTMC; T1aN0M0) has recently become an important clinical issue. Two Japanese centers have conducted prospective clinical trials of active surveillance (AS) for low-risk PTMC since the 1990s, reporting favorable outcomes. This policy has thus seen gradual adoption worldwide to avoid overtreatment. Not all PTMCs are suitable for AS, however, and many physicians still hesitate to apply the management policy in daily clinical practice. A task force on management for PTMC created by the Japan Association of Endocrine Surgery collected and analyzed bibliographic evidence and has produced the present consensus statements regarding indications and concrete strategies for AS to facilitate the management of adult patients diagnosed with low-risk PTMC. Summary: These statements provide indications for AS in adult patients with T1aN0M0 low-risk PTMC. PTMCs with clinical lymph node metastasis, distant metastasis, recurrent laryngeal nerve (RLN) paralysis due to carcinoma invasion, or protrusion into the tracheal lumen warrant immediate surgery. Tumors suspected of aggressive subtypes on cytology are recommended for immediate surgery. Immediate surgery is also recommended for tumors adherent to the trachea or located along the course of the RLN. Practical strategies include diagnosis, decision-making, follow-up, and monitoring related to the implementation of AS. The rate of low-risk PTMC progression is lower in older patients. However, we recommend continuing AS as long as circumstances permit. Future tasks in optimizing management for low-risk PTMC are also described, including molecular markers and patient-reported outcomes. Conclusions: An appropriate multidisciplinary team is necessary to accurately evaluate primary tumors and lymph nodes at the beginning of and during AS, and to adequately reach a shared-decision with individual patients. If appropriately applied, AS of low-risk PTMC is a safe management strategy offering favorable outcomes and preserves quality of life at low cost.
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Affiliation(s)
- Iwao Sugitani
- Department of Endocrine Surgery, Nippon Medical School Graduate School of Medicine, Tokyo, Japan
- Address correspondence to: Iwao Sugitani, MD, PhD, Department of Endocrine Surgery, Nippon Medical School Graduate School of Medicine, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, Japan
| | - Yasuhiro Ito
- Department of Surgery, Kuma Hospital, Kobe, Japan
| | - Dai Takeuchi
- Department of Breast and Endocrine Surgery, Nagoya University, Nagoya, Japan
| | | | - Chie Masaki
- Department of Surgery, Ito Hospital, Tokyo, Japan
| | - Hisakazu Shindo
- Department of Surgery, Yamashita Thyroid Hospital, Fukuoka, Japan
| | - Masanori Teshima
- Department of Otolaryngology, Head and Neck Surgery, Kobe University, Kobe, Japan
| | - Kazuhiko Horiguchi
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Gunma University, Maebashi, Japan
| | - Yusaku Yoshida
- Department of Breast and Endocrine Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Toshiharu Kanai
- Division of Breast and Endocrine Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | | | | | - Isao Tabei
- Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan
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13
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Decision-making in Surgery or Active Surveillance for Low Risk Papillary Thyroid Cancer During the COVID-19 Pandemic. Cancers (Basel) 2021; 13:cancers13030371. [PMID: 33498497 PMCID: PMC7864172 DOI: 10.3390/cancers13030371] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 01/13/2021] [Accepted: 01/18/2021] [Indexed: 01/12/2023] Open
Abstract
Simple Summary In March of 2020, the World Health Organization declared a COVID-19 pandemic, which had dramatic implications for thyroid cancer clinical care and research. Beginning early in the pandemic, at the University Health Network in Toronto, cancer care rapidly transitioned from in-person to virtual outpatient cancer care. Elective surgeries were also restricted, particularly for low risk malignancies. We herein discuss our experience conducting an ongoing study on decision-making regarding surgery or active surveillance for small, low risk papillary thyroid cancer (PTC) during the COVID-19 pandemic. Our study protocol was adapted due to safety considerations, including adopting virtual telephone/video teleconferencing patient visits and verbal consent procedures, and allowing for increased flexibility in appointment scheduling. We discuss some preliminary observations on our study process and outcomes during the pandemic. Abstract We describe our experience conducting a prospective observational cohort study on the management of small, low risk papillary thyroid cancer during the COVID-19 pandemic. Our study participants are given the choice of active surveillance (AS) or surgery, and those in the AS arm are followed at the study center, whereas surgical patients undergo usual care. During the pandemic we have transitioned from in-person research patient visits to largely virtual care of patients under AS. As of 30 October 2020, we had enrolled 181 patients enrolled in our study (including 25 during the pandemic), of which 92.3% (167/181) consented to telephone communication and 79.0% (143/181) consented to secure videoconferencing communication. Prior to the pandemic, 74.5% (117/157) of our patients chose AS over surgery, whereas during the pandemic, 96.0% (24/25) chose AS. Of the 133 study patients who were under AS within the timeframe from 12 March 2020, to 30 October 2020, the percentage of patients who missed appointments was 8.3% (11/133, for neck ultrasound and physician visits, respectively) and delayed appointments was 23.3% (31/133). This preliminary data suggests that prospective observational research on AS of thyroid cancer can safely continue during the pandemic.
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14
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Huang C, Cong S, Shang S, Wang M, Zheng H, Wu S, An X, Liang Z, Zhang B. Web-Based Ultrasonic Nomogram Predicts Preoperative Central Lymph Node Metastasis of cN0 Papillary Thyroid Microcarcinoma. Front Endocrinol (Lausanne) 2021; 12:734900. [PMID: 34557165 PMCID: PMC8453195 DOI: 10.3389/fendo.2021.734900] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 08/18/2021] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Many clinicians are facing the dilemma about whether they should apply the active surveillance (AS) strategy for managing Clinically Node-negative (cN0) PTMC patients in daily clinical practice. This research plans to construct a dynamic nomogram based on network, connected with ultrasound characteristics and clinical data, to predict the risk of central lymph node metastasis (CLNM) in cN0 PTMC patients before surgery. METHODS A retrospective analysis of 659 patients with cN0 PTMC who had underwent thyroid surgery and central compartment neck dissection. Patients were randomly (2:1) divided into the development cohort (439 patients) and validation cohort (220 patients). The group least absolute shrinkage and selection operator (Group Lasso) regression method was used to select the ultrasonic features for CLNM prediction in the development cohort. These features and clinical data were screened by the multivariable regression analysis, and the CLNM prediction model and web-based calculator were established. Receiver operating characteristic, calibration curve, Clinical impact curve and decision curve analysis (DCA) were used to weigh the performance of the prediction model in the validation set. RESULTS Multivariable regression analysis showed that age, tumor size, multifocality, the number of contact surface, and real-time elastography were risk factors that could predict CLNM. The area under the curve of the prediction model in the development and validation sets were 0.78 and 0.77, respectively, with good discrimination and calibration. A web-based dynamic calculator was built. DCA proved that the prediction model had excellent net benefits and clinical practicability. CONCLUSIONS The web-based dynamic nomogram incorporating US and clinical features was able to forecast the risk of preoperative CLNM in cN0 PTMC patients, and has good predictive performance. As a new observational indicator, NCS can provide additional predictive information.
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Affiliation(s)
- Chunwang Huang
- Department of Ultrasound, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Shuzhen Cong
- Department of Ultrasound, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Shiyao Shang
- Department of Ultrasound, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Manli Wang
- Department of Ultrasound, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Huan Zheng
- Department of Ultrasound, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Suqing Wu
- Department of Ultrasound, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xiuyan An
- Department of Ultrasound, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Zhaoqiu Liang
- Department of Ultrasound, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Bo Zhang
- Department of Ultrasonic Imaging, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Bo Zhang,
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15
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Kawano S, Miyauchi A, Ito Y. Routine Chest Computed Tomography at Presentation Does Not Identify Distant Metastasis in cT1aN0 Papillary Thyroid Carcinoma. Thyroid 2020; 30:1620-1624. [PMID: 32368954 PMCID: PMC7692892 DOI: 10.1089/thy.2020.0073] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Background: Active surveillance is accepted as a first-line management for patients with low-risk papillary thyroid microcarcinoma (PTMC) without metastasis or extrathyroid extension. While the lung is the most frequent site of distant metastasis of papillary thyroid carcinomas (PTCs), it is unclear if chest computed tomography (CT) is necessary at the initiation of active surveillance. In our institution, we usually did not perform chest CT for candidates identified for active surveillance. However, routine preoperative chest CT for patients with thyroid cancers, including PTMCs, was standard practice. The present study aimed to evaluate the clinical value of chest CT for patients with PTMCs. Methods: We retrospectively reviewed preoperative chest CT images from 1000 consecutive patients (88.5% women; median age, 55 years) with cT1aN0 PTC who underwent surgery between January 2006 and May 2012 in our hospital. The median maximum size of PTMCs was 8 mm. Results: Abnormal findings were detected in 326 (32.6%) of the 1000 patients. Of these, 290 patients had presumed benign or inflammatory lesions of no clinical importance. In total, 36 patients (3.6%) were referred to specialized departments for further evaluation of the lesions, and 9 patients (0.9%) received invasive tests and/or treatments. Five patients (0.5%) benefited from the chest CT (lung cancer was detected in four, and a cardiac lesion was detected and treated in one), while the lesions in the other four patients were benign, not necessarily requiring treatment. The remaining 27 patents were followed for presumed benign or inflammatory lesions. Thus, none of the present 1000 patients was found with distant metastasis of thyroid cancer. Conclusions: Routine chest CT did not detect thyroid cancer lung metastasis in patients with PTMC. Thus, routine chest CT at the time of presentation is not required for patients with cT1aN0 PTCs.
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Affiliation(s)
| | - Akira Miyauchi
- Department of Surgery, Kuma Hospital, Kobe, Japan
- Address correspondence to: Akira Miyauchi, MD, PhD, Department of Surgery, Kuma Hospital, 8-2-35 Shimoyamate-dori, Chuo-Ku, Kobe 650-0011, Hyogo, Japan
| | - Yasuhiro Ito
- Department of Surgery, Kuma Hospital, Kobe, Japan
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16
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Abstract
In 1993, active surveillance of low-risk papillary thyroid microcarcinomas (PTMCs) started in Kuma Hospital, Kobe, Japan. It has spread globally after the publishing of American Thyroid Association (ATA) guidelines. During our hospital's active surveillance program, few patients (8.0%) showed tumor size enlargement ≥3 mm or the new appearance of node metastasis (3.8%) at 10-year follow-up. Conversion surgery was recommended for patients with disease progression. To date, no patients showed significant recurrence or metastasis or died with thyroid carcinoma when patients underwent active surveillance or after surgery due to PTMC progression. Unlike clinical papillary thyroid carcinoma (PTC), elderly patients' PTMCs were less progressive compared to those of young and middle-aged patients, indicating that elderly patients are strong candidates for the active surveillance of their PTMC. Although young patients' PTMCs are the most progressive, >50% and >75% of patients in their 20s and 30s would avoid conversion surgical treatment in their lifetime, respectively (according to estimated lifetime probability), indicating that such young patients are still candidates for active surveillance. It can thus be concluded that active surveillance is appropriate to be first management for PTMCs, based on the accumulation of favorable outcomes of PTMC patients who have undergone active surveillance, as well as the lower incidences of unfavorable events and lower medical cost than immediate surgery.
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Affiliation(s)
- Yasuhiro Ito
- Department of Surgery, Kuma Hospital, Kobe, Japan
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17
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Smulever A, Pitoia F. High rate incidence of post-surgical adverse events in patients with low-risk papillary thyroid cancer who did not accept active surveillance. Endocrine 2020; 69:587-595. [PMID: 32328966 DOI: 10.1007/s12020-020-02310-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Accepted: 04/06/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE To describe the outcomes and the incidence of adverse events following active surveillance (AS) versus immediate surgery in patients with low-risk papillary thyroid carcinoma (PTC). METHODS We prospectively evaluated 286 patients who attended the Hospital de Clínicas, with a single thyroid nodule <1.5 cm classified as Bethesda category V or VI (PTC). Those patients with no aggressive features were considered as harboring a low-risk PTC and were offered AS or immediate surgery. For patients who opted for AS, surgery was recommended if tumor progression was observed. Post-operative adverse events were recorded for those patients treated with surgery (after AS or immediate surgery). RESULTS From 286 eligible patients, 164 harbored a low-risk PTC. Among these, 75% (n = 123) underwent immediate surgery and 25% (n = 41) opted for AS. Within the last group, increase in tumor size more than 3 mm was observed in 14.6 and 4.8% was diagnosed with lymph-node metastases after a median of 37.5 months (range, 12-65) of follow-up. One hundred and thirty five patients underwent surgery: in 123, it was immediate after diagnosis and in 12 after a median of 35 months (range, 12-65) of AS. Both groups had excellent oncological outcomes. The frequency of postoperative adverse events was 24.4%, which was permanent in 9.6% of cases. The immediate-surgery group presented higher incidence of permanent vocal cord paralysis (2.4 vs. 0%); permanent hypoparathyroidism (5.7 vs. 0%) and local complications (4 vs. 2.4%) compared with the AS group, all non-statistically significant. CONCLUSIONS The high incidence of postoperative complications observed in our media could be avoided if AS was performed as the initial approach in patients with low-risk PTCs. The frequency of tumor growth and LN metastases during AS was similar to other series.
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Affiliation(s)
- Anabella Smulever
- Division of Endocrinology, Hospital de Clínicas, University of Buenos Aires, Buenos Aires, Argentina
| | - Fabián Pitoia
- Division of Endocrinology, Hospital de Clínicas, University of Buenos Aires, Buenos Aires, Argentina.
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18
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Pitoia F, Smulever A. Active surveillance in low risk papillary thyroid carcinoma. World J Clin Oncol 2020; 11:320-336. [PMID: 32874948 PMCID: PMC7450818 DOI: 10.5306/wjco.v11.i6.320] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 04/07/2020] [Accepted: 05/05/2020] [Indexed: 02/06/2023] Open
Abstract
In recent decades, while the incidence of thyroid cancer has increased exponentially around the world, mortality has remained stable. The vast majority of this increase is attributable to the identification of intrathyroidal papillary microcarcinomas, which exhibit slow growth rates with indolent courses. A diagnosis of thyroid cancer based upon the presence of these small tumors could be considered as an overdiagnosis, as the majority of these tumors would not likely result in death if left untreated. Although surgical resection was the classical standard therapy for papillary microcarcinomas, active surveillance (AS) has emerged over the last three decades as an alternative approach that is aimed to recognize a minority group of patients who will clinically progress and would likely benefit from rescue surgery. Despite the encouraging results of AS, its implementation in clinical practice is strongly influenced by psychosocial factors. The aim of this review is to describe the epidemiology, clinical evolution, prognostic factors, and mortality of papillary thyroid microcarcinomas. We also summarize the AS strategy according to published evidence, characterize the criteria for selecting patients for AS according to risk factors and environmental characteristics, as well as analyze the current limitations for AS implementation.
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Affiliation(s)
- Fabian Pitoia
- Division of Endocrinology, Hospital de Clínicas, University of Buenos Aires, Buenos Aires 1120, Argentina
| | - Anabella Smulever
- Division of Endocrinology, Hospital de Clínicas, University of Buenos Aires, Buenos Aires 1120, Argentina
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