scholarly journals Turning to Thyroid Disease in Pregnant Women

2020 ◽  
Vol 9 (5) ◽  
pp. 225-233 ◽  
Author(s):  
Stine Linding Andersen ◽  
Stig Andersen

Thyroid disease in pregnant women needs attention from a clinical and scientific standpoint due to the potential severe adverse consequences. It is well-established that overt thyroid disease in pregnant women should be treated to prevent maternal and fetal complications, but routine testing for overt thyroid function test abnormalities has not been implemented. In contrast, the scientific focus has shifted towards smaller aberrations in maternal thyroid function including subclinical thyroid disease and isolated deviations in maternal thyroxine. In this focused review, we touch upon the assessment of maternal thyroid function in pregnancy and how the historical advancements in thyroid function tests parallel with the thyroid function test abnormalities described. Furthermore, we discuss how the scientific focus has evolved and how the field could turn in view of the existing discrepancies between results of observational studies and randomized controlled trials.

Author(s):  
Elif Çelik ◽  
Ayşe Anık

INTRODUCTION: Thyroid function tests are among the most frequently implemented laboratory tests in primary, and secondary healthcare institutions. The aim of the present study was to investigate the demographic and clinical characteristics and final diagnosis of children referred by primary and secondary healthcare institutions with the suspicion of an abnormality in thyroid function test and/or with the initial diagnosis of specific thyroid disease. METHODS: A total of two hundred eighty-nine pediatric patients, aged between 4 and 18 years admitted to the outpatient clinics of Behçet Uz Children’s Health and Diseases Hospital between January 2018 and January 2020, were included in the study. The patient data were obtained retrospectively from the hospital records. RESULTS: A total of 66% of the patients who were included in the study were female with a median age of 12 years (8.7-14.4), while 64% of them were pubertal; and 78% of the cases were referred by secondary healthcare institutions. The most common reason for referral was isolated elevation of thyroid stimulating hormone (TSH). A total of 56% of the patients were asymptomatic at the time of admission, and thyroid function test results of 75% of them were within normal limits. When evaluated according to their final diagnoses, the children were normal/healthy (64%), diagnosed with Hashimoto thyroiditis (30%), nodular thyroid disease (3%), Graves disease (2%) and isolated increase of TSH was related to obesity in 5 patients (1%). DISCUSSION AND CONCLUSION: It is essential to evaluate children with abnormal thyroid function test results with detailed history and physical examination. Besides, the thyroid function tests should be performed with reliable and sensitive methods in standardized laboratories to reach the correct diagnosis in these children.


Author(s):  
Andersen Stine Linding ◽  
Christensen Peter Astrup ◽  
Louise Knøsgaard ◽  
Stig Andersen ◽  
Aase Handberg ◽  
...  

2007 ◽  
Vol 157 (4) ◽  
pp. 509-514 ◽  
Author(s):  
Rt Stricker ◽  
M Echenard ◽  
R Eberhart ◽  
M-C Chevailler ◽  
V Perez ◽  
...  

Background: Maternal thyroid dysfunction has been associated with a variety of adverse pregnancy outcomes. Laboratory measurement of thyroid function plays an important role in the assessment of maternal thyroid health. However, occult thyroid disease and physiologic changes associated with pregnancy can complicate interpretation of maternal thyroid function tests (TFTs). Objective and methods: To 1) establish the prevalence of laboratory evidence for autoimmune thyroid disease (AITD) in pregnant women; 2) establish gestational age-specific reference intervals for TFTs in women without AITD; and 3) examine the influence of reference intervals on the interpretation of TFT in pregnant women. Serum samples were collected from 2272 pregnant women, and TFT performed. Gestational age-specific reference intervals were determined in women without AITD, and then compared with the non-pregnant assay-specific reference intervals for interpretation of testing results. Results: Thyroid peroxidase antibodies (TPO-Ab) and thyroglobulin antibodies (Tg-Ab) were positive in 10.4 and 15.7% of women respectively. TPO-Ab level was related to maternal age, but TPO-Ab status, Tg-Ab status, and Tg-Ab level were not. Women with TSH > 3.0 mIU/l were significantly more likely to be TPO-Ab positive. Gestational age-specific reference intervals for TFT were significantly different from non-pregnant normal reference intervals. Interpretation of TFT in pregnant women using non-pregnant reference intervals could potentially result in misclassification of a significant percentage of results (range: 5.6–18.3%). Conclusion: Laboratory evidence for thyroid dysfunction was common in this population of pregnant women. Accurate classification of TFT in pregnant women requires the use of gestational age-specific reference intervals.


2008 ◽  
Vol 04 (01) ◽  
pp. 100
Author(s):  
N Pearce Elizabeth ◽  
M Leung Angela

The spectrum of thyroid disease in pregnancy has implications for both the mother and the developing fetus. Here we review the interpretation of thyroid function test values, thyrotoxicosis, hypothyroidism, iodine requirements, autoimmune thyroid disease, and thyroid screening recommendations as they pertain to pregnant women. It should be noted that the management of thyroid dysfunction in pregnancy should be closely co-ordinated with obstetricians and other providers.


2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. A925-A926
Author(s):  
Rujuta Baban Katkar

Abstract Introduction: Coronavirus disease 2019 (COVID-19) has caused significant health burden across the world. Identification of factors contributing to severe disease is important to enable stratification of risk, optimize the reallocation of hospital resources, and guide public health recommendations and interventions. Subacute thyroiditis is an inflammatory thyroid disease characterized by neck pain and is usually preceded by an upper respiratory tract infection. It may be caused by a viral infection or a post-viral inflammatory reaction, and many viruses have been linked to the disease. We present case of atypical thyroiditis associated with COVID-19 infection. Case Report: 27-year-old female with no significant past medical history apart from recent COVID-19 infection is referred to endocrinology for evaluation of abnormal thyroid function test. Patient states around three months ago she was experiencing the symptoms like unintentional weight loss, nausea, palpitation, insomnia, anxiety, fatigue similar to symptoms she experienced 9 years ago while she was pregnant with her daughter so she thought she is pregnant again and visited her gynecologist. But patient had pregnancy test was done and she was found to be negative but her thyroid function test showed low TSH 0.32mIU/ml (0.47-4.68mIU/ml). Patient states around same time she was diagnosed with COVID-19 infection and she lost 5 pounds during that time but even after recovery from the infection she continued to lose weight and lost a total of 18 pounds in 3 months. Patient states during the time of COVID-19 infection she was having difficulty swallowing and painful swallowing but following infection patient denied any current difficulty swallowing or breathing, headache, vision changes, cold or heat intolerance, diarrhea or constipation, tremors, proximal muscle weakness, bulging of her eyes. Patient continue to have regular monthly menstrual cycles. Three months following infection patients repeat thyroid function tests were done and it showed normal TSH 0.56mIU/ml(0.47-4.68mIU/ml),free T4 1.05ng/dL(0.78-2.19ng/dL) and negative thyroid antibodies like TSI index<1.0, Thyroid peroxidase Antibodies 1.4 IU/mL, Thyrotropin Receptor Ab <1.00 IU/L. Patient also had normal thyroid ultrasound. Patient had complete resolution of hyperthyroid symptoms and did not require any medications. Conclusion: In conclusion, physicians should be engaged in close monitoring of thyroid disease in patients with suspected COVID-19, for timely detecting signs of disease progression. Finally, the presence of thyroid disease shall be regarded as an important factor in future risk stratification models for COVID-19.


Author(s):  
Ying Guo ◽  
Bin Wei ◽  
Wei Dai ◽  
Hongjian Xie

Objective A series of physiological changes in thyroid function occur during pregnancy and differ from those non-pregnant women. This study aimed to establish the pregnancy-specific reference intervals of TSH and FT4 using an indirect method based on the healthy pregnant women from southwest China population. Methods Thyroid function test results which available on the Laboratory Information System (LIS) were collected from the pregnancies who visited the Obstetric Clinic or the Department of Gynecology between 1 January 2015, and 30 December 2020. We grouped the data by trimesters to establish the reference intervals (RIs) based on the clinical consensus of different levels of TSH and FT4 at different weeks of gestation. All arrangements were referenced to the document CLSI EP28-A3C. Results A total of 33,040 thyroid function test results of pregnant women, aged 31 (28,33) years were statistical analyzed. Estimated RIs for TSH and FT4 in the first, second and third trimesters corresponding to the 2.5th and 97.5th percentiles in TPOAb negative were 0.02–5.23, 0.03–5.24, 0.37–5.68 mIU/L, 11.66–20.69, 10.1–18.59, 9.85–16.86pmol/L, respectively. Conclusion This study provides trimester-specific RIs for TSH and FT4 among healthy pregnant women in southwest China which guides clinicians to diagnosis and screen for thyroid disorders in this region.


Author(s):  
Maimoona Rasool ◽  
Sarah Maryam ◽  
M. Sohail Anjum Noor ◽  
Mehreen Fatima ◽  
Sultan Ayaz ◽  
...  

Background: Pregnancy has great influence on maternal thyroid gland. It induces significant physiological as well as hormonal changes that alters the maternal thyroid function. Our goal was to determine this pregnancy associated changes in thyroid gland. Objective: To correlate the sonographic findings of maternal thyroid gland with thyroid function tests during pregnancy. Material and methods: 135 pregnant women were recruited in this study, data of TSH, T3 and T4 was obtained and correlated it with the sonographic findings of maternal thyroid gland in each trimester of pregnancy. Results: In the 135 sampled pregnant women, mean thyroid gland volume was 4.08±1.19 cm3. The mean levels of T3, T4 and TSH were v3.37±.44 pmol/L, 14.96±2.49 pmol/L and 1.21±.92 mIU/L respectively. A remarkable correlation between thyroid hormones and thyroid volume was observed. Conclusion: It is concluded that the ultra-sonographic findings is correlated with the thyroid function tests during pregnancy.


2012 ◽  
Vol 9 (2) ◽  
pp. 7-10
Author(s):  
K Subba ◽  
D Karn ◽  
R Khatri

BackgroundVitiligo is a common pigmentary disorder of the skin, affecting individuals globally. Not only is this ailment psychologically incapacitating, it also has a high incidence of autoimmunity, signifying that its manifestations may be the portrayal of dysfunction of immune system. ObjectiveThe aim of this study is to find out the situations of abnormal thyroid function test (TFT) in vitiligo patients. MethodsA prospective cross sectional study was conducted at the Dhulikhel Hospital, KUTH, Dhulikhel during November 2008 to January 2011 with the objective to assess the thyroid function tests in vitiligo patients. ResultsTotal 66 vitiligo patients with male 30 (45%) and female 36 (55%). Total 26 (39.39%) vitiligo patients have been found to have abnormal thyroid function test. Among them 10 had abnormal T3, seven had abnormal T4 and 12 had abnormal TSH level. Thyroid function test were normal in other vitiligo patients. Total seven vitiligo had high level of T3 than normal value, four male and three female. Two had higher level of T4 above 2.0 ng/dl and all were male, while five had abnormally low level of T4 with three male and two female. There were seven vitiligo patient with increased T3 level and three with decreased T3 level, among them six were males and four were females, the age group was ranged from seven to 68 years old. The T4 level were found abnormal in seven vitiligo patients among which five were males and two were females with the age group ranging from 7 to 51 years. ConclusionsThere has been significant association of thyroid disorder in the patient with vitiligo. Therefore, patient with vitiligo need to undergo thyroid function test to rule out the thyroid disorder and prevent from long-term complications.DOI: http://dx.doi.org/10.3126/kumj.v9i2.6279Kathmandu Univ Med J 2011;9(2):7-10 


2020 ◽  
Author(s):  
Regea Dabsu Hirpa ◽  
Worku Dechassa Heyi ◽  
Elias Merdassa Roro

Abstract Introduction: Thyroid function testing in pregnancy is an area of concern for pregnant women, doctors and laboratories. Some women are known to have thyroid disease before pregnancy and require monitoring to ensure no harm comes to them or their baby. Thyroid disorders can have adverse reproductive and pregnancy implications. Thus, the aim of this study was to assess blood level of thyroid function test during early gestation and assess associated factors among pregnant women attending antenatal care clinic in Nekemte Referral Hospital.Methods: Facility-based Cross-sectional study design was deployed to collect information from 300 Pregnant women (<20 gestation weeks) attending antenatal clinic from March to May, 2017. Interviewer-administered structured questionnaire was used to obtain information and blood samples were collected from pregnant women for estimation of thyroid function test after getting written consent. Data was entered to Epi info version 3.5.3, cleaned and analyzed using SPSS version 24 and Multivariable analysis were used to examine the association between dependent and independent variables. Odds ratios (ORs) and their 95% confidence intervals (CIs) were calculated. Significance was declared at P-value 0.05.Result: A total of 300 pregnant women were interviewed and blood sample collected from them for thyroid function test with a response rate of 90.1%. Among the study subjects 14(4.7%) have Subclinical Hypothyroidism (SCH). Husband occupation, presence of Radio in the household, presence of television in their house and treating drinking water at household level were among factors associated with development of Hypothyroidism.Conclusion and Recommendation: In this study, Subclinical Hypothyroidism (SCH) among pregnant women in early gestation is significant 14(4.7%) above the expected 2.5% of American thyroid association cut point. Husband occupation, Presence of media for information and treatment of drinking water were the associated factors. So, health workers should always update pregnant women on importance of consuming proper utilization of iodized salt. Health workers shall also teach pregnant women on personal and environmental hygiene.


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