• Clinical and Experimental Pediatrics
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• 제58권6호
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• pp.224-229
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• 2015

Purpose: Thyroid dysfunction is common in preterm infants. Congenital hypothyroidism causes neurodevelopmental impairment, which is preventable if properly treated. This study was conducted to describe the characteristics of thyroid dysfunction in very low birth weight infants (VLBWIs), evaluate risk factors of hypothyroidism, and suggest the reassessment of thyroid function with an initially normal thyroid-stimulating hormone (TSH) as part of a newborn screening test. Methods: VLBWIs (January 2010 to December 2012) were divided into two groups according to dysfunction-specific thyroid hormone replacement therapy, and associated factors were evaluated. Results: Of VLBWIs, 246 survivors were enrolled. Only 12.2% (30/246) of enrolled subjects exhibited thyroid dysfunction requiring thyroid hormone replacement. Moreover, only one out of 30 subjects who required thyroid hormone treatment had abnormal thyroid function in the newborn screening test with measured TSH. Most of the subjects in the treatment group (22/30) exhibited delayed TSH elevation. Gestational age, Apgar score, antenatal steroids therapy, respiratory distress syndrome, patent ductus arteriosus, sepsis, intraventricular hemorrhage, postnatal steroids therapy, and duration of mechanical ventilation did not differ between the two groups. Birth weight was smaller and infants with small for gestational age were more frequent in the treatment group. Conclusion: Physicians should not rule out suggested hypothyroidism, even when thyroid function of a newborn screening test is normal. We suggest retesting TSH and free thyroxine in high risk preterm infants with an initially normal TSH level using a newborn screening test.

• 대한핵의학회지
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• 제23권1호
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• pp.1-6
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• 1989

The occurrence of thyroid disorders is connected with iodine deficiency, defective synthesis or releasing of thyroid hormone and endemicity. Genetic factors are known as a single gene defects, interaction of multiple genes with environmental factors, as well as chromosomal aberrations. Diofnosis thyroid disorders is enforced by I-131 uptake test, thyroid scanning with I-131 or Tc-99 m and serum radioimmunoassays of T3, T4, free T4 and TSH. They were largely classified as hypothyroidism, hyperthyroidism, simple goiter and normal. The pedigree of 58 families was drawn by propositus, and then the correlation between thyroid disorders and TSH levels was analyzed. The results are as follows: 1) The offsprings and their mothers of 15 families were hypothyroidism, THS level was 5 folds for offsprings and 4 folds for mothers in comparison with control group. 2) 13 families were hyperthyyroidism in siblings but their mothers were normal in thyroid function, TSH level of the siblings was lower than control group. 3) Though the offsprings and their mothers of 10 families were similar to TSH level of control group, they are all simple goiter, familial thyroid disorders, in other thyroid function test. The familial thyroid disorders suggested that these transmitted from mothers to offsprings with X-linked dominant or autosomal dominant inheritance.

• 대한기관식도과학회지
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• 제5권1호
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• pp.55-61
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• 1999

The authors recently experienced a case of ectopic thyroid. A 15-year-old female patient visited to ENT department with the complaint of the submental neck mass. On physical examination, the mass was relatively firm, non tender and 3$\times$2cm in size. Oral cavity examination revealed 0.5$\times$0.5cm sized pink colored mass near the foramen cecum area. Suspecting ectopic thyroid, thyroid function test, thyroid scan, neck computed tomogram scan were performed. Thyroid scan revealed a functioning thyroid on the lingual and submental area without normal uptake in the anterior neck area. Thyroid (unction test was normal. Pre-contrast computed tomogram scan revealed an ectopic thyroid in the lingual and submental area. A review of literature concerning ectopic thyroid was discussed.

• Clinical and Experimental Pediatrics
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• 제63권2호
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• pp.52-55
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• 2020

Background: Immunomodulatory properties of interferon (IFN) have been documented. It may induce autoimmune diseases such as autoimmune thyroiditis with hypo- or hyperthyroidism. In addition, it may impair thyroid hormone synthesis through affecting iodide organification in thyroid gland. Purpose: The aim of this study was to describe thyroid function tests disturbances in children with chronic hepatitis C (CHC) receiving pegylated interferon-alpha (PEG IFN-α) plus ribavirin. Methods: Fifty children with CHC virus infection who received combined pegylated interferon-alpha with ribavirin were selected. Other 50 apparently healthy children of matched age and sex (considered as control group) were selected. All children (100) were subject to liver function tests, virological studies, and follow-up of thyroid function test during and after the treatment course. Results: Our study showed that 28% of children received combined PEG IFN-α plus ribavirin showed subclinical hypothyroidism. After 24 weeks treatment with combined therapy of IFN plus ribavirin, the mean level of thyroid stimulating hormone (TSH) was 3.23±88 mU/mL, while TSH was 1.16±0.77 mU/mL before starting treatment. On the other hand, mean TSH was 1.09±0.92 mU/mL in normal control group. Conclusion: This study revealed an association between subclinical thyroid dysfunction and treatment with IFN-alpha and ribavirin in children. Further studies on larger number of patients and longer follow-up duration are recommended for further confirmation.

• 한국방사선학회논문지
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• 제16권5호
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• pp.545-551
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• 2022

본 연구는 심박변이도(HRV) 신호를 통해 산출된 스트레스 측정치와 갑상선 기능 검사(TFT) 항목 간의 상관관계를 분석하였다. K 의원에 내원한 질병이 없는 건강한 성인 181명을 연구대상으로 하였다. 획득한 심박변이도(HRV) 신호를 이용하여 스트레스 저항도(SR)와 스트레스 지수(SI)를 산출하였으며 갑상선 기능검사(TFT) 항목으로는 TSH, Free T4, T3를 이용하였다. 측정된 값은 pearson 상관분석을 통해 각 항목 간의 관계를 통계 분석 하였다. 결과에서 Free T4와 스트레스 저항도(SR)는 양의 상관관계(r=0.18)를, 스트레스지수(SI)와는 음의 상관관계(r=-0.16)를 가졌음을 확인하였다. 이를 통해 갑상선 기능과 HRV 신호 간에 유의한 관계가 있음을 확인하였다.

• 생물정신의학
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• 제14권1호
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• pp.68-71
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• 2007

Quetiapine is an atypical antipsychotic drug with a benign side effect profile. However, recent studies have reported that thyroid dysfunction is associated with quetiapine treatment. The authors report a patient with DSM-IV bipolar I disorder who developed subclinical hypothyroidism during quetiapine treatment. The patient showed no significant clinical symptoms, but only abnormal thyroid function test findings including antithyroglobulin antibody. The abnormal thyroid function test findings were normalized after discontinuation of quetiapine. The subclinical hypothyroidism developed during quetiapine treatment may be associated with autoimmune process.

• 대한핵의학회지
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• 제27권2호
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• pp.183-190
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• 1993

저자들은 이소갑상선이 의심되어 갑상선신티그라피로 확진된 19명의 환자를 대상으로 갑상선 스캔과 갑상선 기능검사의 결과 및 임상증상등을 조사하여 다음과 같은 결과를 얻었다. 1) 이소갑상선의 성별분포는 여자 16명, 남자3명으로 여자가 남자의 5.3배였고, 30세 이전인 경우가 97%였다. 2) 이소갑상선이 발견된 위치는 설근부 10예, 설하부1예, 전 후두부 5예 그리고 Combined form이 3예였다. 3) 갑상선기능검사를 시행한 16예에서 갑상선기능저하증이 7예, 준임상적 갑상선기능저하증이 4예 그리고 갑상선기능 정상이 5예였다. 4) 설갑상선의 경우는 갑상선기능저하증이 90%에서 나타났으나, 이보다 아래로 내려온 경우에는 33%로 갑상선 기능이상은 이소갑상선의 위치에 따라 유의한 차이가 있었다(p<0.05). 5) 갑상선의 주된 임상증상은 설근부의 인후이물감, 연하곤란이었고, 이보다 아래에 위치한 경우는 전경부의 종괴가 주된 임상증상이었다. 6) 갑상선기능저하증으로 진단된 7예와 준임상적 갑상선 기능저하증 4예중 3예에서는 갑상선호르몬을 투여하였고 갑상선 기능이 정상인 2예에서 이소갑상선 제거술이 시행되었으며 그 나머지는 추적관찰하였다. 7) 설근부나 전경부에 종괴가 있을 경우에는 반드시 갑상선스캔을 시행하여 이소갑상선의 가능성을 배제하여야 한다. 또한 이소갑상선의 기능이 정상인 환자에서도 갑상선기능저하증으로 진행될 수 있으므로 추적관찰이 필요하다.

• 대한핵의학회지
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• 제9권1호
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• pp.3-4
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• 1975

• 대한핵의학회지
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• 제9권1호
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• pp.5-9
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• 1975

• 생물정신의학
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• 제26권1호
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• pp.14-21
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• 2019

Objectives Thyroid hormone deficiency during the neurodevelopmental period can impair brain development and induce psychiatric symptoms. This study examined the association between thyroid dysfunction and the severity of symptoms in schizophrenia patients, and the treatment response of patients with schizophrenia. Methods Three hundred thirty-eight schizophrenia patients, with no prior history of thyroid disease or taking medication associated with it, were studied. We assessed the blood thyroid hormone level, the Brief Psychiatric Rating Scale (BPRS) scores on the day of admission and discharge, admission period, dose of administered antipsychotics, and the number of antipsychotic combinations. The collected data were subsequently analyzed using the Kruskal-Wallis test and Pearson's chi-square test. Results The percentage of schizophrenia patients who presented with abnormal thyroid hormone level was 24.6%. High total triiodothyronine (TT3) (p = 0.003), low TT3 (p = 0.001), and high free thyroxine (fT4) (p < 0.001) groups showed a higher BPRS score on admission than did the normal thyroid hormone group, while thyroid stimulating hormone (TSH) levels were not significantly correlated with the severity of symptoms. Furthermore, thyroid hormone was not associated with the treatment response assessed by the rate of BPRS score reduction, admission days, use of clozapine, and dose of antipsychotics. Conclusions The TT3 and fT4 hormone levels were significantly associated with the severity of symptoms in schizophrenia patients. These relations suggested that thyroid dysfunction may be associated with the severity of schizophrenia. And hence, further analysis of the results of the thyroid function test, which is commonly used in cases of psychiatric admission, is required.