RESUMEN
BACKGROUND AND OBJECTIVE: Posthemithyroidectomy hypothyroidism (PHH) is a relatively common complication (22%-30%) for which we have no published information from our country. The objective of the study is to determine the prevalence of PHH and evaluate its predictive markers by comparing patients who had euthyroidism with those who had hyperthyroidism before hemithyroidectomy. PATIENTS AND METHOD: Retrospective observational cross-sectional study on 106 patients, 88 euthyroid before hemithyroidectomy and 18 hyperthyroid. RESULTS: Prevalence of PHH in euthyroid patients 42% (89.2% subclinical hypothyroidism; 10.8% manifest hypothyroidism) and in hyperthyroid patients 50% (77.8% subclinical hypothyroidism; 22.2% manifest hypothyroidism). Predictive markers in euthyroid patients: preoperative thyrotropin ≥ 2.2 mIU/L (OR: 4.278, 95% CI: 1.689-10.833; sensitivity: 54.1%, 95% CI: 38%-70.1%; specificity: 78.4%, 95% CI: 67.1%-89.7%), age ≥50 years (OR: 3.509, 95% CI: 1.438-8.563; sensitivity: 64.9%, 95% CI: 49.5%-80.3%; specificity: 64.7%, 95% CI: 51.6%-77.8%) and percentage of remainder lobe ≤ 19.6% (OR: 1.024, 95%: 1.002-1.046; sensitivity: 70.2%, 95% CI: 55.5%-84.9%; specificity: 48.6%, 95% CI: 34.9%-62.3%). Predictive marker in hyperthyroid patients: weight >70 kg (OR: 28, 95% CI: 2.067-379.247; sensitivity: 88.9%, 95% CI: 68.4%-100%; specificity: 88.9%, 95% CI: 68.4%-100%). CONCLUSIONS: This is the first study in our country that demonstrates a prevalence of PHH above the average in euthyroid patients, which is slightly higher and more intense in hyperthyroid patients, and that recognizes the classic predictive markers in euthyroid patients but highlights a novel predictive marker marker in hyperthyroid patients, useful to assess a different risk of PHH when indicating hemithyroidectomy and to establish closer control of postoperative hormonal evolution.
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Bocio Nodular , Hipertiroidismo , Hipotiroidismo , Tiroidectomía , Humanos , Estudios Transversales , Femenino , Masculino , Estudios Retrospectivos , Persona de Mediana Edad , Hipotiroidismo/epidemiología , Hipotiroidismo/sangre , Hipotiroidismo/etiología , Prevalencia , Bocio Nodular/cirugía , Bocio Nodular/epidemiología , Hipertiroidismo/epidemiología , Hipertiroidismo/sangre , Hipertiroidismo/cirugía , Adulto , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Complicaciones Posoperatorias/sangre , Anciano , Biomarcadores/sangre , Tirotropina/sangreRESUMEN
PURPOSE: Worldwide, incidence of thyroid malignancy is increasing. The purpose of this study was to evaluate the pattern and magnitude of nodule types. METHODS: A cross-sectional retrospective study was performed at Saint Paul's Hospital Millennium Medical College, Addis Ababa, Ethiopia, among patients who underwent thyroidectomy from May 2018 to June 2022. Data were extracted using a structured format. Descriptive statistics were performed using SPSS version 26 software. Results were presented in terms of percentages and frequencies. RESULTS: During a 4-year period, 1,476 patients had thyroidectomies and histopathologic information of 212 malignant cases was studied. Within multinodular goiter (MNG), thyroid cancer accounted for 69.8% (n = 148) of patients, whereas in solitary nodules, it accounted for 30.2%. From the total, 160 participants (75.5%) were female, and the female:male ratio was 3.1 (mean, 41.72; ± standard deviation [SD], 16.44) years, and age range of 12-88 years versus men, who have a mean of 44.71 (±SD, 14.91) years and an age range of 21-78 years. The mean age of male cases with solitary nodule and MNG was 40.6 and 46.5 years, respectively. The most frequent cancer in both types of nodules, accounting for 59% of patients, was papillary carcinoma, which was found in 64% of solitary nodules and 57.4% of multinodular nodules. Overall, 14.1% of tumors had multiple centers (17.4% in multinodular nodules and 6.9% in solitary nodules). In 7.1% of patients, microcarcinoma (<1 cm) was found, with papillary carcinoma accounting for 91.7% of the total. CONCLUSION: Compared with men, women with cancer typically manifested at a younger age. Males with malignancy in solitary nodules had a lower mean age than those with MNGs. The most frequent and significant cause of multicentric presentation is papillary carcinoma.
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Bocio Nodular , Neoplasias de la Tiroides , Nódulo Tiroideo , Tiroidectomía , Humanos , Femenino , Masculino , Adulto , Persona de Mediana Edad , Nódulo Tiroideo/cirugía , Nódulo Tiroideo/patología , Nódulo Tiroideo/epidemiología , Estudios Retrospectivos , Neoplasias de la Tiroides/cirugía , Neoplasias de la Tiroides/patología , Neoplasias de la Tiroides/epidemiología , Anciano , Adolescente , Bocio Nodular/cirugía , Bocio Nodular/patología , Bocio Nodular/epidemiología , Estudios Transversales , Adulto Joven , Anciano de 80 o más Años , Niño , Etiopía/epidemiologíaRESUMEN
Introducción: Un bocio se considera intratorácico cuando más de un 50 por ciento de la glándula tiroides está en el mediastino, o sea, por debajo del nivel del estrecho torácico superior. Se trata de una enfermedad poco frecuente que padece aproximadamente el 3 por ciento de los pobladores del mundo. La incidencia del bocio nodular ha disminuido debido a la ingestión en algunos países de sal yodada y alimentos ricos en yodo. Esta enfermedad alcanza alrededor del 10 por ciento de las masas mediastínicas. Objetivo: Presentar el caso de un paciente masculino, operado de bocio endotorácico en la provincia de Cienfuegos. Presentación de caso: Se presenta un paciente masculino, de 48 años de edad, que acude a consulta y refiere aumento de volumen del cuello en la región anterior, que se acompaña de decaimiento y en ocasiones disfagia tanto a los alimentos líquidos como a los sólidos. Además, refiere ligera disnea que tolera adecuadamente cuando realiza las actividades de la vida diaria. Por tratarse de una enfermedad poco frecuente, se considera de interés científico publicar el caso para conocimiento de los profesionales dedicados al estudio y tratamiento de las afecciones tiroideas. Conclusiones: El bocio endotorácico es una entidad poco frecuente y en todos los casos requiere de intervención quirúrgica(AU)
Introduction: A goiter is considered intrathoracic when more than 50 percent of the thyroid gland is in the mediastinum; in other words, below the level of the superior thoracic outlet. It is a rare disease that affects approximately 3 percent of the world's population. The incidence of nodular goiter has decreased due to the ingestion of iodized salt and iodine-rich foods in some countries. This disease accounts for about 10 percent of mediastinal masses. Objective: To present the case of a male patient operated on for endothoracic goiter in the province of Cienfuegos. Case presentation: The case is presented of a 48-year-old male patient who comes for consultation referring a volume increase in the anterior neck region, accompanied by decay and sometimes dysphagia to both liquid and solid food. In addition, he reports slight dyspnea that he tolerates adequately when performing daily living activities. Since this is a rare disease, it is considered of scientific interest to publish the case for the knowledge of professionals dedicated to studying and treating thyroid disorders. Conclusions: Endothoracic goiter is a rare entity and, in all cases, requires surgical intervention(AU)
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Humanos , Masculino , Persona de Mediana Edad , Bocio Nodular/epidemiologíaRESUMEN
Metabolic syndrome (MetS) is considered very important because of the increased risk for cardiovascular diseases. Identifying modifiable factors may help prevent MetS. We aimed to investigate the relationship between iodine intake as a dietary factor and MetS in euthyroid adult in an iodine-replete area. A total of 4,277 adult aged ≥19 years from the Korea National Health and Nutrition Examination Survey VI (2013-2015) with urinary iodine concentration (UIC) results and normal thyroid function were included. Participants were grouped according to their iodine nutrition status based on the WHO recommendations and modifications: insufficient (<100 µg/L), adequate (100-299 µg/L), and excessive (≥300 µg/L) iodine intake. We estimated the odds ratios (ORs) for MetS according to the UIC groups using logistic regression models. Of the study participants, 27.2% men and 23.9% women had MetS. Men with excessive iodine intake had a significantly lower risk of elevated triglycerides [OR 0.733, 95% confidence interval (CI) 0.603-0.890, p = 0.010], as compared to those with adequate iodine intake. Women with insufficient iodine intake had a significantly greater risk of elevated blood glucose (OR 1.519, 95% CI 1.011-2.282, p = 0.044), as compared to those with adequate iodine intake. In women, insufficient iodine intake was a significant risk factor for MetS compared to adequate iodine intake, even after adjusting for confounding variables including age, smoking, alcohol consumption, walking activity, serum thyroid-stimulating hormone, free thyroxine, and anti-thyroid peroxidase antibody (OR 1.544, 95% CI 1.031-2.311, p = 0.035). There was no association between iodine intake and risk of MetS in men. In conclusion, insufficient iodine intake was associated with an increased risk of MetS only in euthyroid adult women. Our data support that sex differences may influence the relationship between iodine intake as a dietary pattern and MetS.
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Bocio Nodular , Yodo , Síndrome Metabólico , Yodo/administración & dosificación , Síndrome Metabólico/epidemiología , Estado Nutricional , Factores de Riesgo , Encuestas Nutricionales , Humanos , Masculino , Femenino , Adulto , Bocio Nodular/epidemiología , República de Corea/epidemiología , Prevalencia , Persona de Mediana EdadRESUMEN
BACKGROUND: Nowadays, the Republic of Belarus belongs to the countries with sufficient iodine supply, which made it possible to reduce the incidence of non-toxic goiter and congenital hypothyroidism. However, even a slight change in iodine consumption influences the pattern of thyroid diseases. In addition to iodine deficiency, other environmental conditions, as well as genetic factors, play a significant role in the etiology of thyroid diseases. AIM: To analyze the dynamics of the main epidemiological indicators of benign thyroid diseases from 2009 to 2019 in the adult population of the Republic of Belarus, using the data of official state statistics. MATERIALS AND METHODS: The indicators of the incidence and prevalence of benign thyroid diseases were studied on the basis of state statistics for 2009-2019. To analyze the dynamics of the studied indicators, regression analysis was used with the construction of linear and polynomial models. RESULTS: A decrease in the incidence and prevalence of diffuse euthyroid goiter and an increase in the incidence and prevalence of nodular euthyroid goiter, thyroiditis, acquired hypothyroidism, Graves' disease, as well as the incidence of nodular toxic goiter were revealed. CONCLUSION: Obtained data indicate, that there is an increase in the prevalence of most of the studied thyroid diseases, despite the adequate iodine supply. The above justifies the need for further study of the causes of the identified trends, as well as the necessity of developing new methods of diagnosis and treatment of thyroid diseases.
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Bocio Endémico , Bocio Nodular , Enfermedad de Graves , Yodo , Neoplasias de la Tiroides , Tiroiditis , Bocio Endémico/complicaciones , Bocio Endémico/epidemiología , Bocio Nodular/complicaciones , Bocio Nodular/epidemiología , Enfermedad de Graves/complicaciones , Humanos , República de Belarús/epidemiología , Neoplasias de la Tiroides/epidemiología , Neoplasias de la Tiroides/etiología , Tiroiditis/complicacionesRESUMEN
Background: Although hyperfunctioning thyroid disorders were thought to be protective against malignancy, some recent studies reported a high incidence of incidentally discovered cancer in patients with hyperfunctioning benign thyroid disorders. We performed this study to estimate the incidence and predictors of malignant thyroid disease in patients with toxic nodular goiter (TNG). Patients and Methods. The data of 98 patients diagnosed with TNG were reviewed (including toxic multinodular goiter SMNG and single toxic nodule STN). The collected data included patients age, gender, systemic comorbidities, family history of thyroid malignancy, previous neck radiation, type of disease (multinodular or single), size of the dominant nodule by the US, operative time, and detection of significant lymph nodes during operation. Based on the histopathological analysis, the cases were allocated into benign and malignant groups. Results: Malignancy was detected in 21 patients (21.43%). Although age distribution was comparable between the two groups, males showed a significant increase in association with malignancy. Medical comorbidities and family history of cancer did not differ between the two groups. However, TMNG showed a statistically higher prevalence in the malignant group. Operative data, including operative time and lymph node detection, were comparable between the two groups. On regression analysis, both male gender and TMNG were significant predictors of malignancy. Conclusion: The presence of thyroid hyperfunction is not a protective factor against malignancy, as malignancy was detected in about 1/5 of cases. Male gender and TMNG were significant risk factors of malignancy in such patients.
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Bocio Nodular , Hipertiroidismo , Neoplasias de la Tiroides , Bocio Nodular/complicaciones , Bocio Nodular/epidemiología , Bocio Nodular/cirugía , Humanos , Hipertiroidismo/etiología , Hipertiroidismo/patología , Hipertiroidismo/cirugía , Incidencia , Masculino , Factores de Riesgo , Neoplasias de la Tiroides/epidemiología , Neoplasias de la Tiroides/etiologíaRESUMEN
BACKGROUND: The incidence rates of thyroid tumors and nodular goiter show an upward trend worldwide. There are limited reports on the risk of perchlorate and iodine on thyroid tumors, but evidence from population studies is scarce, and their impact on thyroid function is still uncertain. Therefore, the objective of this study was to investigate the association of perchlorate and iodine with the risk of nodular goiter (NG), papillary thyroid microcarcinoma (PTMC), and papillary thyroid carcinoma (PTC) and to assess the correlation between perchlorate and iodine with thyroid function indicators. METHODS: A case-control population consisting of 184 pairs of thyroid tumors and nodular goiter matched by gender and age (±2 years) was recruited in this study. Serum and urine samples were collected from each participant. Thyroid function indicators in serum were tested by automatic chemical immunofluorescence, and perchlorate and iodine levels in urine were determined by ultra-high performance liquid chromatography tandem-mass spectrometry and inductively coupled plasma-mass spectrometry, respectively. Conditional logistic regressions and multiple linear regressions were used to analyze the associations. RESULTS: Urinary perchlorate concentration was significantly higher in total cases, NG and PTC than in the corresponding controls (P < 0.05). Perchlorate was positively associated with PTC (OR = 1.058, 95% CI: 1.009, 1.110) in a non-linear dose-response relationship, but there was no association between perchlorate and NG or PTMC. Iodine was not associated with the risk of thyroid tumors and NG and did not correlate with the thyroid function indicators. Furthermore, perchlorate showed a positive correlation with thyroid stimulating hormone (TSH) at iodine adequate levels (P < 0.05), and a negative correlation with free triiodothyronine (FT3) and a positive correlation with thyroglobulin antibody (TgAb) at iodine more than adequate or excess levels (P < 0.05). CONCLUSIONS: Perchlorate can increase the risk of PTC in a non-linear dose-response relationship and disturb the thyroid hormone homeostasis and thyroid autoantibody levels.
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Bocio Nodular , Yodo , Neoplasias de la Tiroides , Estudios de Casos y Controles , China/epidemiología , Bocio Nodular/epidemiología , Humanos , Incidencia , Percloratos , Neoplasias de la Tiroides/epidemiología , TirotropinaRESUMEN
Background: The standard treatment of hypothyroidism is levothyroxine (LT-4). However, there are several controversies regarding treatment of hypothyroid patients. Aim: To investigate the Swedish endocrinologists' use of thyroid hormones in hypothyroid and euthyroid individuals. Methods: Physician members of the Swedish Endocrine Society (SEF) were invited by e-mail to participate in an online survey investigating this topic. Results: Out of the eligible 411 members, 116 (28.2%) responded. The majority (98.9%) stated that L-T4 is the treatment of choice. However, around 50% also prescribed liothyronine (L-T3) or a combination of L-T4+L-T3 in their practice. Combination therapy was mostly (78.5%) used in patients with persistent hypothyroid symptoms despite biochemical euthyroidism on L-T4 treatment. Most respondents prescribed L-T4 tablets and did not expect any major changes with alternative formulations such as soft-gel capsules or liquid formulations in situations influencing the bioavailability of L-T4. In euthyroid patients, 49.5% replied that treatment with thyroid hormones was never indicated, while 47.3% would consider L-T4 for euthyroid infertile women with high thyroid peroxidase (TPO) antibody levels. Conclusion: The treatment of choice for hypothyroidism in Sweden is L-T4 tablets. Combination therapy with L-T4+L-T3 tablets was considered for patients with persistent symptoms despite biochemical euthyroidism. Soft-gel capsules and liquid solutions of L-T4 were infrequently prescribed. Swedish endocrinologists' deviation from endocrine society guidelines merits further study.
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Bocio Nodular/tratamiento farmacológico , Hipotiroidismo/tratamiento farmacológico , Médicos/tendencias , Sociedades Médicas/tendencias , Encuestas y Cuestionarios , Hormonas Tiroideas/uso terapéutico , Adulto , Anciano , Quimioterapia Combinada , Femenino , Bocio Nodular/sangre , Bocio Nodular/epidemiología , Humanos , Hipotiroidismo/sangre , Hipotiroidismo/epidemiología , Masculino , Persona de Mediana Edad , Suecia/epidemiología , Tiroxina/uso terapéutico , Triyodotironina/uso terapéutico , Adulto JovenRESUMEN
Pendred syndrome (PDS) is the most common form of syndromic Hearing Loss (HL), characterized by sensorineural HL, inner ear malformations, and goiter, with or without hypothyroidism. SLC26A4 is the major gene involved, even though ~50% of the patients carry only one pathogenic mutation. This study aims to define the molecular diagnosis for a cohort of 24 suspected-PDS patients characterized by a deep radiological and audiological evaluation. Whole-Exome Sequencing (WES), the analysis of twelve variants upstream of SLC26A4, constituting the "CEVA haplotype" and Multiplex Ligation Probe Amplification (MLPA) searching for deletions/duplications in SLC26A4 gene have been carried out. In five patients (20.8%) homozygous/compound heterozygous SLC26A4 mutations, or pathogenic mutation in trans with the CEVA haplotype have been identified, while five subjects (20.8%) resulted heterozygous for a single variant. In silico protein modeling supported the pathogenicity of the detected variants, suggesting an effect on the protein stabilization/function. Interestingly, we identified a genotype-phenotype correlation among those patients carrying SLC26A4 mutations, whose audiograms presented a characteristic slope at the medium and high frequencies, providing new insights into PDS. Finally, an interesting homozygous variant in MYO5C has been identified in one patient negative to SLC26A4 gene, suggesting the identification of a new HL candidate gene.
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Bocio Nodular/genética , Pérdida Auditiva Sensorineural/genética , Miosina Tipo V/genética , Transportadores de Sulfato/genética , Adolescente , Adulto , Niño , Preescolar , Femenino , Estudios de Asociación Genética , Predisposición Genética a la Enfermedad , Bocio Nodular/epidemiología , Bocio Nodular/patología , Haplotipos/genética , Pérdida Auditiva Sensorineural/epidemiología , Pérdida Auditiva Sensorineural/patología , Humanos , Lactante , Masculino , Mutación , Secuenciación del Exoma , Adulto JovenRESUMEN
Introduction: DICER1 syndrome encompasses a variety of benign and malignant manifestations including multinodular goitre, which is the most common manifestation among individuals carrying pathogenic DICER1 variants. This is the first study estimating the prevalence of pathogenic DICER1 variants in young individuals with multinodular goitre. Methods: Danish individuals diagnosed with nodular goitre based on thyroidectomy samples in 2001-2016 with the age limit at time of operation being ≤ 25 years were offered germline DICER1 gene testing. Results: Six of 46 individuals, 13% (CI [3.3;22.7], p <0.05), diagnosed with nodular goitre on the basis of thyroidectomy samples under the age of 25 years had pathogenic germline variants in DICER1. They were found in different pathoanatomical nodular goitre cohorts i.e. nodular goitre (n=2), colloid nodular goitre (n=3) and hyperplastic nodular goitre (n=1). Conclusions: We recommend referral of patients thyroidectomised due to goitre aged <21 years and patients thyroidectomised due to goitre aged <25 years with a family history of goitre to genetic counselling. Patients of all ages thyroidectomised due to goitre, who are affected by another DICER1 manifestation should be referred to genetic counselling.
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ARN Helicasas DEAD-box/genética , Bocio Nodular/epidemiología , Bocio Nodular/genética , Ribonucleasa III/genética , Adulto , Estudios de Cohortes , Dinamarca/epidemiología , Femenino , Frecuencia de los Genes , Predisposición Genética a la Enfermedad , Mutación de Línea Germinal , Bocio Nodular/cirugía , Humanos , Masculino , Prevalencia , Nódulo Tiroideo/epidemiología , Nódulo Tiroideo/genética , Nódulo Tiroideo/cirugía , Tiroidectomía , Adulto JovenRESUMEN
BACKGROUND: Thyrotoxicosis is the state of thyroid hormone excess. But, in sub-Saharan Africa (SSA), specifically Northern Ethiopia, scientific evidence about thyrotoxicosis and its cardiac complications like dilated cardiomyopathy is limited. Therefore, this study aimed to explore the thyrotoxicosis presentation and management and identify factors associated with dilated cardiomyopathy in a tertiary hospital in Northern Ethiopia. METHODS: An institution-based cross-sectional study was conducted in Ayder Comprehensive Specialized Hospital from 2017 to 2018. Data from 200 thyrotoxicosis cases were collected using a structured questionnaire. After describing variables, logistic regression was conducted to identify independent predictors of dilated cardiomyopathy. Statistical significance was declared at p < 0.05. RESULTS: Mean age at presentation of thyrotoxicosis was 45 years and females accounted for 89 % of the cases. The most frequent etiology was multinodular toxic goiter (51.5 %). As well, the most common symptoms and signs were palpitation and goiter respectively. Thyroid storm occurred in 6 % of the cases. Out of 89 patients subjected to echocardiography, 35 (39.3 %) of them had dilated cardiomyopathy. And, the odds of dilated cardiomyopathy were higher in patients who had atrial fibrillation (AOR = 15.95, 95 % CI:5.89-38.16, p = 0.001) and tachycardia (AOR = 2.73, 95 % CI:1.04-7.15, p = 0.040). All patients took propylthiouracil and 13.0 % of them experienced its side effects. Concerning ß-blockers, propranolol was the most commonly (78.5 % of the cases) used drug followed by atenolol (15.0 %). Six patients underwent surgery. CONCLUSIONS: In developing countries like Ethiopia, patients with thyrotoxicosis have no access to methimazole which is the first-line anti-thyroid drug. Besides, they greatly suffer from dilated cardiomyopathy (due to late presentation) and side effects of propylthiouracil. Therefore, we recommend that patients should get adequate health information about thyrotoxicosis and anti-thyroid drugs including their side effects. Additionally, hospitals and other concerned bodies should also avail of TSH tests and methimazole at an affordable cost. Furthermore, community awareness about iodized salt and iodine-rich foods should be enhanced.
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Cardiomiopatía Dilatada/economía , Cardiomiopatía Dilatada/epidemiología , Países en Desarrollo/economía , Tirotoxicosis/economía , Tirotoxicosis/epidemiología , Adolescente , Adulto , Antitiroideos/uso terapéutico , Cardiomiopatía Dilatada/terapia , Estudios Transversales , Etiopía/epidemiología , Femenino , Bocio Nodular/economía , Bocio Nodular/epidemiología , Bocio Nodular/terapia , Humanos , Yodo/administración & dosificación , Masculino , Metimazol/uso terapéutico , Persona de Mediana Edad , Cloruro de Sodio Dietético/administración & dosificación , Tirotoxicosis/terapia , Adulto JovenRESUMEN
BACKGROUND: Toxic nodular goiter (TNG) is a rare disease in which the cause of hyperthyroidism is the presence of a node or nodes that autonomously secrete thyroid hormones. With children and adolescents this condition is extremely rare - in 5-7.5% of all cases of nodular goiter. Therapy of toxic nodular goiter is aimed at relieving the symptoms of hyperthyroidism taking into account the malignant potential of the nodular formation. In the available literature, there are no data on the clinical course, comparative results of cytological and histological data in patients with toxic nodular goiter, which debuted in their childhood. AIM: Analysis of the features of the clinical course, comparison of the results of cytological and histological studies of toxic nodular goiter in children and adolescents. MATERIALS AND METHODS: A retrospective, single-center study of 21 patients with single-nodular toxic goiter, hospitalized at the Endocrinology Research Centre in the period from January 2016 to December 2019. RESULTS: The mean age at the time of the survey was 13.9 years. Thirteen patients (65%) had manifest thyrotoxicosis, and seven (35%) had subclinical hyperthyroidism. More than half of children - 57.1% (n = 12) did not receive thyreostatic therapy. The cytological picture in 11 patients (61.1%) corresponded to benign changes (nodular colloid goiter or adenomatous goiter) - Bethesda II, in 4 patients - follicular tumor - Bethesda IV, in 4 children the study was not informative. 19 patients (90.5%) underwent surgical treatment (hemithyroidectomy). According to the results of histological examination, follicular adenoma was found in 44.4% of children with nodular toxic goiter with benign results of TAB (Bethesda II) and was found in 50% with revealing follicular neoplasia (Bethesda IV). CONCLUSION: For the first time in the Russian Federation was carried out a comparative analysis of the characteristics of cytological and histological studies in children with toxic nodular goiter. It is significant that only in 10.5% (n=2) cytological and morphological results were consistent. The choice of radical treatment tactics should take into account the high frequency of mismatches between histological and morphological studies.
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Bocio Nodular , Hipertiroidismo , Tirotoxicosis , Adolescente , Niño , Bocio Nodular/epidemiología , Humanos , Estudios Retrospectivos , Tiroidectomía , Tirotoxicosis/epidemiologíaRESUMEN
BACKGROUND: Rates of thyroid cancer in patients with multinodular goitre (MNG) vary widely, from 3 per cent in older studies to 35 per cent in more recent studies. The purpose of the present study was to evaluate the prevalence of thyroid cancer in patients operated on for MNG, and to determine risk factors for incidental thyroid malignancy. METHODS: A prospectively developed database of all patients who underwent thyroidectomy for a benign MNG at the high-volume endocrine surgery unit of a tertiary referral university hospital was interrogated. RESULTS: A total of 3233 patients were analysed, separated into three groups according to their functional thyroid status (hypothyroid, hyperthyroid or euthyroid). There were 2788 women (86.2 per cent); the mean patient age was 56.4 years and mean preoperative disease duration was 106.2 months. Incidental thyroid cancer was identified in 1026 patients (31.7 per cent), of which 917 (89.4 per cent) were papillary cancers. Multivariable regression analysis identified functional thyroid status, younger age, male sex, smaller adenoma size, smaller thyroid glands, Hashimoto's thyroiditis and chronic non-specific thyroiditis as independent risk factors for thyroid cancer. CONCLUSION: MNG was associated with a considerable rate of incidental thyroid cancer, which has been underestimated. A variety of factors should be taken into account when considering the malignant potential of a presumed benign MNG.
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Bocio Nodular/epidemiología , Neoplasias de la Tiroides/epidemiología , Adenoma Oxifílico/diagnóstico , Adenoma Oxifílico/epidemiología , Carcinoma Papilar/diagnóstico , Carcinoma Papilar/epidemiología , Comorbilidad , Femenino , Bocio Nodular/cirugía , Humanos , Hallazgos Incidentales , Masculino , Persona de Mediana Edad , Prevalencia , Estudios Prospectivos , Análisis de Regresión , Factores de Riesgo , Neoplasias de la Tiroides/diagnóstico , TiroidectomíaRESUMEN
Importance: Genetic disorders are historically defined through phenotype-first approaches. However, risk estimates derived from phenotype-linked ascertainment may overestimate severity and penetrance. Pathogenic variants in DICER1 are associated with increased risks of rare and common neoplasms and thyroid disease in adults and children. This study explored how effectively a genome-first approach could characterize the clinical traits associated with germline DICER1 putative loss-of-function (pLOF) variants in an unselected clinical cohort. Objective: To examine the prevalence, penetrance, and phenotypic characteristics of carriers of germline DICER1 pLOF variants via genome-first ascertainment. Design, Setting, and Participants: This cohort study classifies DICER1 variants in germline exome sequence data from 92 296 participants of the Geisinger MyCode Community Health Initiative. Data for each MyCode participant were used from the start of the Geisinger electronic health record to February 1, 2018. Main Outcomes and Measures: Prevalence of germline DICER1 variation; penetrance of malignant tumors and thyroid disease in carriers of germline DICER1 variation; structured, manual review of electronic health records; and DICER1 sequencing of available tumors from an associated cancer registry. Results: A total of 92â¯296 adults (mean [SD] age, 59 [18] years; 98% white; 60% female) participated in the study. Germline DICER1 pLOF variants were observed in 1 in 3700 to 1 in 4600 participants, more than double the expected prevalence. Malignant tumors (primarily thyroid carcinoma) were observed in 4 of 25 participants (16%) with DICER1 pLOF variants, which is comparable (by 50 years of age) to the frequency of neoplasms in the largest registry- and clinic-based (phenotype-first) DICER1 studies published to date. DICER1 pLOF variants were significantly associated with risks of thyroidectomy (odds ratio [OR], 6.0; 95% CI, 2.2-16.3; P = .007) and thyroid cancer (OR, 9.2; 95% CI, 2.1-34.7; P = .02) compared with controls, but there was not a significant increase in the risk of goiter (OR, 1.8; 95% CI, 0.7-4.9). A female patient in her 80s who was a carrier of a germline DICER1 hotspot variant was apparently healthy on electronic health record review. The term DICER1 did not appear in any of the medical records of the 25 participants with a pLOF DICER1 variant, even in those affected with a known DICER1-associated tumor or thyroid phenotype. Conclusions and Relevance: This cohort study was able to ascertain individuals with germline DICER1 variants based on a genome-first approach rather than through a previously established DICER1-related phenotype. Use of the genome-first approach may complement more traditional approaches to syndrome delineation and may be an efficient approach for risk estimation.
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ARN Helicasas DEAD-box/genética , Penetrancia , Fenotipo , Ribonucleasa III/genética , Enfermedades de la Tiroides/genética , Neoplasias de la Tiroides/genética , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Femenino , Genoma , Mutación de Línea Germinal , Bocio Nodular/epidemiología , Bocio Nodular/genética , Enfermedad de Graves/epidemiología , Enfermedad de Graves/genética , Heterocigoto , Humanos , Hipotiroidismo/epidemiología , Hipotiroidismo/genética , Neoplasias Renales/epidemiología , Neoplasias Renales/genética , Mutación con Pérdida de Función , Masculino , Persona de Mediana Edad , Neoplasias/epidemiología , Neoplasias/genética , Neoplasias Ováricas/epidemiología , Neoplasias Ováricas/genética , Prevalencia , Blastoma Pulmonar/epidemiología , Blastoma Pulmonar/genética , Sarcoma/epidemiología , Sarcoma/genética , Tumor de Células de Sertoli-Leydig/epidemiología , Tumor de Células de Sertoli-Leydig/genética , Tumores de los Cordones Sexuales y Estroma de las Gónadas/epidemiología , Tumores de los Cordones Sexuales y Estroma de las Gónadas/genética , Neoplasias Testiculares/epidemiología , Neoplasias Testiculares/genética , Enfermedades de la Tiroides/epidemiología , Neoplasias de la Tiroides/epidemiología , Nódulo Tiroideo/epidemiología , Nódulo Tiroideo/genética , Tiroidectomía/estadística & datos numéricos , Tirotoxicosis/epidemiología , Tirotoxicosis/genética , Tumor de Wilms/epidemiología , Tumor de Wilms/genética , Adulto JovenRESUMEN
Background: This study aims to reveal the features of lymph node metastasis (LNM) and recurrence in papillary thyroid carcinoma (PTC) tumors located in the upper portion of the thyroid. Methods: A total of 1075 PTC patients were retrospectively reviewed, including 314 patients with a tumor in the upper portion of the thyroid. Another 103 PTC patients with upper portion diagonsis from three clinical centers were included for external validation. Results: The results showed no difference between the patients with a tumor in the upper portion of the thyroid and those with a tumor in the non-upper portion in terms of overall LNM rates. However, patients with a tumor in the upper portion were significantly more prone to LLNM and exhibited a significantly worse recurrence outcome than those with a tumor in other subregions. Multivariate analysis showed that four factors-age no more than 40, maximum tumor diameter no less than1.0 cm, the presence of thyroid capsular invasion, and tumor with ipsilateral nodular goiter-were independent risk factors for LLNM of the tumor in the upper thyroid. A predictive risk-scoring model was established based on these factors. Conclusions: Patients with PTC located in the upper portion may have an exclusive lymphatic drainage pathway to the lateral neck region and are more prone to suffer from LLNM and tumor recurrence than those with a tumor located in other subregions. A new postoperative strategy selection flow chart was established based on our newly created risk-scoring model that can effectively predict the individualized possibility of LLNM for PTC patients with a tumor in the upper portion.
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Ganglios Linfáticos/patología , Recurrencia Local de Neoplasia/patología , Cáncer Papilar Tiroideo/patología , Neoplasias de la Tiroides/patología , Adulto , Factores de Edad , Estudios de Cohortes , Supervivencia sin Enfermedad , Femenino , Bocio Nodular/epidemiología , Bocio Nodular/patología , Humanos , Metástasis Linfática , Masculino , Análisis Multivariante , Disección del Cuello , Invasividad Neoplásica , Recurrencia Local de Neoplasia/epidemiología , Estudios Retrospectivos , Cáncer Papilar Tiroideo/epidemiología , Neoplasias de la Tiroides/epidemiología , Tiroidectomía , Carga TumoralRESUMEN
BACKGROUND: At the time of seeking medical help, some patients have nodular/multinodular goiter of large and gigantic sizes, which leads to compression of the neck organs. In the structure of benign diseases, neck compression is diagnosed in 10% of cases, and tracheal narrowing is found in 84% of patients in this group. It was experimentally established that narrowing of the trachea leads to the development of hypertension in the pulmonary circulation. Patients with nodular/multinodular goiter with compression of the neck organs belong to the age group of 50 years and older, the peculiarity of which is comorbidity of varying severity. Cardiopulmonary syndromes may mask compression of the organs of the neck by the thyroid gland. As a rule, patients come and/or go to a cardiologist, pulmonologist, gastroenterologist and other specialists, as a result of which the timelines for timely surgical treatment are missed. Often, patients are delivered to the endocrine surgeon urgently due to the development of asphyxiation. The symptoms of impaired external respiration and the initial manifestations of pulmonary hypertension, as a result of compression syndrome, preceding this condition are evaluated only retrospectively. AIMS: To study the frequency of tracheal compression and symptoms of chronic hypoxia in the structure of benign thyroid diseases requiring surgical treatment, as well as an assessment of the nature of comorbid pathology and the results of surgical treatment. METHODS: A retrospective analysis of the results of surgical treatment of benign thyroid diseases for the period from March to August 2019 was carried out (100 observations). RESULTS: Toxic goiter prevailed in the structure of benign thyroid diseases (74%). Tracheal compression was observed in 69% of cases. When trachea was compressed, arterial hypertension statistically significantly prevailed (χ2, p≤0.01). The appearance of «wheezing» on inhalation/exhalation and an increase in its frequency were detected when the trachea narrowed to the thyroid gland to 10 mm or less in 10 cases (10%) with a statistically significant prevalence of pulmonary hypertension (χ2, p≤0.01). Thyroidectomy prevailed in the structure of operations (80%). There was no statistically significant increase in surgical complications depending on the severity of tracheal compression, age, and concomitant pathology. There were no fatal outcomes. CONCLUSIONS: Surgical treatment of patients with benign thyroid diseases complicated by compression of the neck organs is also shown safely regardless of age and associated pathology.
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Bocio Nodular , Comorbilidad , Bocio Nodular/epidemiología , Humanos , Persona de Mediana Edad , Estudios Retrospectivos , TiroidectomíaRESUMEN
Background: Dementia is an increasing burden to the health care system. It is currently debated whether hyperthyroidism is associated with a risk of dementia. Our aim was to determine the risk of dementia in hyperthyroid individuals and whether this was associated with duration of hyperthyroidism. Methods: Risk of dementia in hyperthyroid individuals was evaluated in two cohorts and matched reference populations. The Danish National Patient Registry (DNPR) cohort is a registry-based Danish nationwide cohort followed for a median of 7.2 years (from 1995 to 2013), whereas the OPENTHYRO registry cohort comprises 235,547 individuals who had at least one serum thyrotropin (TSH) measurement in the period from 1995 to 2011 and was followed for a median of 7.3 years. Each hyperthyroid case was matched with four controls according to age and sex using density sampling. Hyperthyroidism was defined as either an International Classification of Diseases Version 10 (ICD-10) diagnosis of toxic nodular goiter (TNG) or Graves' disease (GD), or two measurements of a TSH below 0.3 mU/L in the DNPR and OPENTHYRO registry cohort, respectively. The primary outcome was all-cause dementia, defined as either an ICD-10 code of dementia or prescription of medicine for dementia, with subgroup analyses of vascular dementia and Alzheimer's disease. Results: The DNPR cohort had 56,128 patients with hyperthyroidism, 2689 of whom were registered with dementia. The reference population had 224,512 individuals, of whom 10,199 had dementia (hazard ratio 1.17; 95% confidence interval [CI]: 1.12-1.23). Risk of dementia, whether Alzheimer's or vascular, was higher in both GD and TNG. The OPENTHYRO registry cohort constituted 2688 hyperthyroid individuals and 10,752 euthyroid control individuals of whom 190 and 473 individuals, respectively, were subsequently diagnosed with dementia (HR 1.06; 95% CI: 0.89-1.26). For each 6 months of decreased TSH, the risk of all-cause dementia was significantly higher (HR 1.16; 95% CI: 1.12-1.22). Conclusions: Using large-scale registry-based data, we found increased risk of dementia in hyperthyroid individuals. Every 6 months of decreased TSH was associated with increased risk of dementia by 16%, compared with individuals with normal TSH. Our data support early diagnosis and intervention in patients with hyperthyroidism.
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Enfermedad de Alzheimer/epidemiología , Demencia Vascular/epidemiología , Bocio Nodular/epidemiología , Enfermedad de Graves/epidemiología , Adulto , Anciano , Estudios de Cohortes , Comorbilidad , Dinamarca/epidemiología , Femenino , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Sistema de Registros , RiesgoRESUMEN
CONTEXT: Nodular goiter in patients from areas of iodine deficiency is due to the growth of follicular and endothelial cells, involving different vascular-related growth factors in its pathogenesis. OBJECTIVE: The aim of our study was to examine the association of known single polymorphisms of vascular endothelial growth factor-A [VEGF-A], VEGF receptor-2 [VEGFR-2] and hypoxia-inducible factor-1α [HIF-1α] genes or their genetic interactions with the risk of nodular goiter development. PATIENTS AND METHODS: 116 normal subjects, without any thyroid disease, and 108 subjects with nodular goiter [subjects with goiter and at least one thyroid nodule of > 1 cm of maximum size and in absence of signs of autoimmunity] were selected from a homogeneous population living in a mild iodine deficiency geographic area. Analyses were performed on germline DNA obtained from blood samples and VEGF-A rs3025039, VEGFR-2 rs2071559, and HIF-1αrs11549465 SNPs were investigated by real-time PCR technique. The multifactor dimensionality reduction [MDR] methodology was applied to investigate the genetic interaction between SNPs. Hardy-Weinberg equilibrium was performed. RESULTS: None of the studied polymorphisms were individually associated with a higher risk to develop nodular goiter [P > 0.05]. The combination of the VEGF-A rs3025039 and VEGFR-2 rs2071559 polymorphisms had the highest accuracy of 0.58 [P = 0.018] and the interaction of some genotypes was significantly associated with the risk of nodular goiter development. CONCLUSIONS: Our results support a genetic interaction between the VEGF-A rs3025039 and VEGFR-2 rs2071559 polymorphisms as a predictor of the risk to develop nodular goiter in subjects coming from an area with mild iodine deficiency.
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Epistasis Genética/genética , Predisposición Genética a la Enfermedad/genética , Perfil Genético , Bocio Nodular/genética , Factor A de Crecimiento Endotelial Vascular/genética , Receptor 2 de Factores de Crecimiento Endotelial Vascular/genética , Adulto , Anciano , Femenino , Predisposición Genética a la Enfermedad/epidemiología , Bocio Nodular/diagnóstico , Bocio Nodular/epidemiología , Humanos , Italia/epidemiología , Masculino , Persona de Mediana Edad , Factores de RiesgoRESUMEN
Abstract Background: Metabolic syndrome is a cluster of metabolic abnormalities and abdominal obesity; its pathophysiologic basis, insulin resistance, has been shown to act as agent in thyroid cell proliferation. Few studies analyze the relationship between metabolic syndrome and thyroid nodular disease, with a substantial knowledge gap. Objective: Determine the association between metabolic syndrome and nodular thyroid disease in a region with adequate iodine intake. Methods: Case-control study. A total of 182 patients referred to radiology to undergo thyroid ultrasonography due to suspicion of thyroid disease. Cases had at least one thyroid nodule greater than 3 mm (n= 91). Controls did not have evidence of thyroid nodules (n= 91). Results: Bivariate analysis showed a significant association between metabolic syndrome and the presence of thyroid nodule (OR 2.56, 95% CI: 1.41-4.66, p <0.05). Low levels of HDL (OR 2.81, 95% CI: 1.54-5.12, p <0.05) and impaired fasting glucose (OR 2.05, 95%CI 1.10 to 3.78, p <0.05) were significantly associated with the presence of thyroid nodule, independent of the presence of metabolic syndrome. Multivariate analysis maintained the association between metabolic syndrome and thyroid nodule with an OR of 2.96 (95%CI 1.47 to 5.95, p <0.05); similarly, the associations of low levels of HDL (OR 2.77, 95%CI 1.44 to 5.3, p <0.05) and impaired fasting glucose (OR 2.23, 95%CI 1.14 to 4.34, p<0.05) with thyroid nodule remained significant. Conclusion: The thyroid nodular disease is associated with increased risk of metabolic syndrome, specifically decreased HDL and impaired fasting glucose levels were the factors that increased association was found.
Resumen Antecedentes: el síndrome metabólico es un conjunto de anormalidades metabólicas y obesidad abdominal; Se ha demostrado que su base fisiopatológica, la resistencia a la insulina, actúa como agente en la proliferación de las células tiroideas. Pocos estudios analizan la relación entre el síndrome metabólico y la enfermedad nodular tiroidea, con una brecha de conocimiento sustancial. Objetivo: determinar la asociación entre el síndrome metabólico y la enfermedad tiroidea nodular en una región con una ingesta adecuada de yodo. Métodos: estudio de casos y controles. Un total de 182 pacientes remitidos a radiología para someterse a una ecografía tiroidea debido a la sospecha de enfermedad tiroidea. Los casos tenían al menos un nódulo tiroideo mayor de 3 mm (n = 91). Los controles no tenían evidencia de nódulos tiroideos (n = 91). Resultados: El análisis bivariado mostró una asociación significativa entre el síndrome metabólico y la presencia de nódulo tiroideo (OR 2.56, IC 95%: 1.41-4.66, p <0.05). Los niveles bajos de HDL (OR 2.81, IC 95%: 1.54-5.12, p <0.05) y glucosa en ayunas alterada (OR 2.05, IC 95% 1.10 a 3.78, p <0.05) se asociaron significativamente con la presencia de nódulo tiroideo, independiente de la presencia de síndrome metabólico. El análisis multivariado mantuvo la asociación entre el síndrome metabólico y el nódulo tiroideo con un OR de 2.96 (IC 95% 1.47 a 5.95, p <0.05); de manera similar, las asociaciones de niveles bajos de HDL (OR 2.77, IC 95% 1.44 a 5.3, p <0.05) y glucosa en ayunas alterada (OR 2.23, IC 95% 1.14 a 4.34, p <0.05) con nódulo tiroideo permanecieron significativas. Conclusión: la enfermedad nodular tiroidea se asocia con un mayor riesgo de síndrome metabólico, específicamente la disminución de HDL y los niveles de glucosa en ayunas alterados fueron los factores que aumentaron la asociación.
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Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Nódulo Tiroideo/epidemiología , Síndrome Metabólico/epidemiología , Bocio Nodular/epidemiología , Glucemia/metabolismo , Estudios de Casos y Controles , HDL-Colesterol/sangreRESUMEN
OBJECTIVE: To compare the haemogram parameters of patients with thyroid papillary cancer and nodular goiter. METHODS: The retrospective comparative study was conducted at Van Training and Research Regional Hospital, Van, Turkey, and comprised data of patients who underwent thyroidectomy from 2011 to 2015. The data was compared between patients with papillary thyroid cancer (group 1) and those with nodular hyperplasia (group 2) in terms of age, gender and thyroid stimulating hormone level as well as haemogram parameters, neutrophil-lymphocyte ratio and platelet-lymphocyte ratio. SPSS 20 was used for statistical analysis. RESULTS: Of the 90 patients, 53(59%) were in group 1 with papillary thyroid cancer and 37(%) in group 2 with nodular hyperplasia. Platelet-lymphocyte ratio was significantly higher in group 1 (p=0.015). Mean platelet volume was significantly higher in group 1 patients with a diameter of 1cm or more (p<0.05). Within group 1, lymphocyte count was significantly high in patients with invasion (p<0.05). In correlation analysis, group 1 patients with a tumour diameter of 1cm or more showed a significant correlation in mean platelet volume, tumour multicentricity, lymphocyte count, vascular invasion, thyroglobulin, platelet distribution width, platelet number and tumour multicentricity (p<0.05). CONCLUSION: Only platelet-lymphocyte ratio could assist in distinguishing benign goiter from thyroid cancer. Also, mean platelet volume, lymphocyte count, and platelet distribution width appeared to be effective prognostic markers for papillary thyroid cancer.