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1.
EBioMedicine ; 82: 104137, 2022 Aug.
Article in English | MEDLINE | ID: mdl-35785619

ABSTRACT

BACKGROUND: The diagnosis of cancer in Bethesda III/IV thyroid nodules is challenging as fine-needle aspiration (FNA) has limitations, and these cases usually require diagnostic surgery. As approximately 77% of these nodules are not malignant, a diagnostic test accurately identifying benign thyroid nodules can reduce "potentially unnecessary" surgery rates. We have previously reported the development and validation of a microRNA-based thyroid classifier (mir-THYpe) with high sensitivity and specificity, which could be performed directly from FNA smear slides. We sought to evaluate the performance of this test in real-world clinical routine to support clinical decisions and to reduce surgery rates. METHODS: We designed a real-world, prospective, multicentre study. Molecular tests were performed with FNA samples prepared at 128 cytopathology laboratories. Patients were followed-up from March 2018 until surgery or until March 2020 (patients with no indication for surgery). The final diagnosis of thyroid tissue samples was retrieved from postsurgical anatomopathological reports. FINDINGS: A total of 435 patients (440 nodules) classified as Bethesda III/IV were followed-up. The rate of avoided surgeries was 52·5% for all surgeries and 74·6% for "potentially unnecessary" surgeries. The test achieved 89·3% sensitivity, 81·65% specificity, 66·2% positive predictive value, and 95% negative predictive value. The test supported 92·3% of clinical decisions. INTERPRETATION: The reported data demonstrate that the use of the microRNA-based classifier in the real-world can reduce the rate of thyroid surgeries with robust performance and support clinical decision-making. FUNDING: The São Paulo Research-Foundation (FAPESP) and Onkos.


Subject(s)
Decision Support Systems, Clinical , MicroRNAs , Thyroid Neoplasms , Thyroid Nodule , Brazil , Humans , MicroRNAs/genetics , Prospective Studies , Retrospective Studies , Thyroid Neoplasms/diagnosis , Thyroid Neoplasms/genetics , Thyroid Neoplasms/surgery , Thyroid Nodule/diagnosis , Thyroid Nodule/genetics , Thyroid Nodule/pathology
2.
Endocr J ; 68(5): 573-581, 2021 May 28.
Article in English | MEDLINE | ID: mdl-33473070

ABSTRACT

Thyroid nodules (TN) are common in the general population, and the clinical importance of diagnosing thyroid nodules is based on excluding the possibility of thyroid cancer, which occurs in 7-15% of cases. The thyroid gland, owing to its superficial location, is easily accessible via thermography, a noninvasive method of recording body temperature that measures infrared radiation emitted by the body surface. Therefore, this study aimed to evaluate the temperature differences between benign and malignant TN by using thermography. We conducted a cross-sectional study where 147 TN were divided into two groups: the first group included 120 benign nodules and the other included 27 malignant nodules. All the nodules were subjected to ultrasound, fine needle aspiration biopsy, and thermography. On analyzing the thermography results, the benign nodules had a higher temperature at the beginning of the thermography evaluation, and the malignant nodules showed a higher temperature in the middle and at the end (Ft). Using the relationships, it was observed that the temperature delta (ΔT), ΔT nodule/ΔT healthy, ΔT nodule minus ΔT healthy, and nodule Ft minus Ft of the healthy region were higher in malignant nodules. The ROC curve analysis of ΔT demonstrated a cutoff point of 2.38°C, with a sensitivity of 0.963 and specificity of 0.992. Malignant nodules have higher temperatures than benign nodules on thermographic evaluation. This finding suggests that thermography can be a useful tool in the diagnosis of thyroid nodules.


Subject(s)
Thermography/methods , Thyroid Neoplasms/diagnosis , Thyroid Nodule/diagnosis , Adult , Cross-Sectional Studies , Diagnosis, Differential , Female , Humans , Male , Middle Aged , Sensitivity and Specificity , Temperature
3.
Arq. bras. med ; 71(4): 155-6, jul.-ago. 1997. ilus
Article in Portuguese | LILACS | ID: lil-242420

ABSTRACT

O presente trabalho refere-se a um tumor em coxa esquerda, assentado em paciente do sexo masculino, e que teve evoluçäo de aproximadamente 30 anos. Em grande parte deste tempo, mostrou-se assintomático, fato que näo mais ocorreu quando o tumor alcançou o seu maior diâmetro. O paciente foi submetido a tratamento cirúrgico no HUAP.


Subject(s)
Humans , Male , Middle Aged , Hemangioma/diagnosis , Hemangioma/surgery , Hip/surgery , Giant Cell Tumors/surgery
4.
Niterói; s.n; 1997. 46 p. ilus, tab.
Thesis in Portuguese | LILACS | ID: lil-658684

ABSTRACT

Foi realizado estudo retrospectivo, no Hospital Universitário Antonio Pedro, dos pacientes com pseudocisto de pâncreas, submetidos a drenagem externa percutânea, no período compreendido entre dezembro de 1984 a outubro de 1995. Foram tratados 12 pacientes que apresentavam um total de 14 pseudocistos pancreáticos nos quais foram realizadas 18 drenagens externas percutâneas. Dez pacientes eram do sexo masculino e dois do feminino. A idade mínima foi de 13 anos e a máxima de 59. O tempo transcorrido de acompanhamento dos pacientes foi de até seis meses e não verificamos durante este período evidências de recidiva. O tratamento cirúrgico por laparotomia foi indicado em dois casos, por insucesso da drenagem externa percutânea. As complicações observadas e atribuídas ao método foram: abscesso subfrenico, abscessos entre alças intestinais, septicemia e erosão de vaso sanguíneo da parede abdominal. A mortalidade foi nula. Concluímos que o método analisado foi eficaz em dez pacientes e apresentou baixo índice de complicações


Subject(s)
Humans , Male , Female , Adolescent , Young Adult , Middle Aged , Laparotomy/adverse effects , Laparotomy , Pancreatic Pseudocyst , Public Health , Sepsis , Subphrenic Abscess , Suction
5.
Folha méd ; 103(3): 111-2, set. 1991.
Article in Portuguese | LILACS | ID: lil-176617

ABSTRACT

Os autores relatam sua experiência com 12 pacientes que foram operados no Hospital Universitário Antonio Pedro em um período de 14 anos, com tumores carcinóides no tubo digestivo. Sete pacientes eram do sexo masculino e cinco do feminino. A idade variou entre nove e 74 anos. O tumor foi único em todos os casos e sua localização era apendicular em oito pacientes, ileal em três, e de cólon direito em um. As cirurgias realizadas foram: apendicectomia em oito casos, hemicolectomia diretia em três casos e ressecção ileal em um, sem mortalidade operatória


Subject(s)
Humans , Male , Female , Child , Adolescent , Adult , Middle Aged , Appendectomy , Carcinoid Tumor/pathology , Carcinoid Tumor/surgery , Carcinoid Tumor/therapy , Digestive System Neoplasms/pathology , Digestive System Neoplasms/therapy
6.
Rev. bras. cir ; 79(5): 249-51, set.-out. 1989. tab
Article in Portuguese | LILACS | ID: lil-80669

ABSTRACT

Foram operados no Hospital Universitário Antonio Pedro, entre 1972 e 1986, 26 pacientes adultos com invaginaçäo intestinal. Os dados revistos revelaram que todos os pacientes apresentavam invaginaçäo anterógrada e que sua sede preferencial foi a regiäo íleo-ceco-cólica (12 casos). Os tumores foram a causa mais comum (11 casos) e entre eles o lipoma intestinal foi o mais encontrado (seis casos). A invaginaçäo intestinal idiopática ocorreu em nove casos. O tratamento cirúrgico onsistiu basicamente em reduçäo do segmento intestinal para melhor analisar a causa e a viabilidade da alça, a fim de indicar ou näo a ressecçäo intestinal. A evoluçäo pós-operatória foi excelente em 17 pacientes. Cinco apresentaram complicaçöes leve e quatro evoluíram para o óbito, por complicaçöes sépticas relacionadas com a presença de necrose intestinal a laparotomia


Subject(s)
Adolescent , Adult , Middle Aged , Humans , Male , Female , Intestinal Neoplasms/surgery , Intussusception/surgery , Lipoma/surgery , Brazil , Postoperative Period
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