scholarly journals Subclinical Thyroid Function and Cardiovascular Events in patients with Atrial Fibrillation

2021 ◽  
Author(s):  
Elisavet Moutzouri ◽  
Christina Lyko ◽  
Martin Feller ◽  
Manuel Raphael Blum ◽  
Luise Adam ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Subclinical Hypothyroidism ◽  
Thyroid Dysfunction ◽  
Total Mortality ◽  
Composite Endpoint ◽  
Community Dwelling ◽  
Sensitivity Analyses ◽  
Subclinical Hyperthyroidism ◽  
Increased Risk ◽  
Multivariable Adjustment

Objective: To evaluate if subclinical thyroid dysfunction is associated with cardiovascular (CV) risk in patients with atrial fibrillation (AF). Methods: Swiss-AF is a prospective cohort of community-dwelling participants aged ≥ 65 years with AF. Primary outcome was a composite endpoint of CV events (myocardial infarctions, stroke/transitory ischemic events, systemic embolism, heart failure (HF) hospitalizations, CV deaths). Secondary outcomes were component endpoints, total mortality and AF-progression. Exposures were thyroid dysfunction categories, TSH and fT4. Sensitivity analyses were performed for amiodarone use, thyroid hormones use and competing events. Results: 2415 patients were included (mean age 73.2 years; 27% women). 196 (8.4%) had subclinical hypothyroidism and 53 (2.3%) subclinical hyperthyroidism. Subclinical thyroid dysfunction was not associated with CV events, during a median follow-up of 2.1 years (max 5 years): age- and sex- adjusted hazard ratio (adjHR) of 0.99 (95% confidence interval (CI) 0.69-1.41) for subclinical hypothyroidism; and 0.55 (95%CI 0.23-1.32) for subclinical hyperthyroidism. Results remained robust following multivariable adjustment and sensitivity analyses. In euthyroid patients, fT4 levels were associated with an increased risk for the composite endpoint and HF (adjHR 1.46 95%CI 1.04- 2.05; adjHR 1.70 95%CI 1.08-2.66, respectively, for the highest quintile versus the middle quintile). Results remained similar following multivariable adjustment. Results remained significant for HF in sensitivity analyses. No association between subclinical thyroid dysfunction and total mortality or AF-progression was found. Conclusions: Subclinical hypothyroidism was not associated with increased CV risk in AF patients. Higher levels of fT4 with normal TSH were associated with higher risk for HF.

scholarly journals Relationship between Subclinical Thyroid Dysfunction and the Risk of Cardiovascular Outcomes: A Systematic Review and Meta-Analysis of Prospective Cohort Studies

2017 ◽  
Vol 2017 ◽  
pp. 1-15 ◽  
Author(s):  
Jing Sun ◽  
Liang Yao ◽  
Yuan Fang ◽  
Ruifei Yang ◽  
Yaolong Chen ◽  
...  
Keyword(s):  
Cardiovascular Mortality ◽  
Subclinical Hypothyroidism ◽  
Thyroid Dysfunction ◽  
Meta Analysis ◽  
Total Mortality ◽  
Cardiovascular Outcomes ◽  
Cochrane Library ◽  
Subclinical Hyperthyroidism ◽  
Estimation Risk ◽  
Increased Risk

Background. Evidence on the association between subclinical thyroid dysfunction and the risk of cardiovascular outcomes are conflicting. Methods and Results. PubMed, EMbase, Web of Science, Cochrane Library, and China Biology Medicine (CBM) databases were searched from inception to July 10, 2016. A total of 16 studies were included for meta-analysis. We found that subclinical hypothyroidism was not correlated with coronary heart disease (CHD) (RR = 1.17; 95% CI, 0.91–1.52), total mortality (RR = 1.02; 95% CI, 0.93–1.13), cardiovascular mortality (RR = 1.06; 95% CI, 0.77–1.45), heart failure (RR = 1.17; 95% CI, 0.87–1.57), and atrial fibrillation (RR = 1.05; 95% CI, 0.91–1.21), except CHD mortality (RR = 1.37; 95% CI, 1.03–1.84). Subgroup analysis indicated a higher estimation risk in CHD (RR = 1.54; 95% CI, 1.00–2.39), cardiovascular mortality (RR = 2.14; 95% CI, 1.43–3.22), and CHD mortality (RR = 1.54; 95% CI, 1.11–2.15) among participants < 65 years. Furthermore, subclinical hyperthyroidism was found to be associated with CHD (RR = 1.20; 95% CI, 1.02–1.42), total mortality (RR = 1.27; 95% CI, 1.07–1.51), and CHD mortality (RR = 1.45; 95% CI, 1.12–1.86). Conclusions. Subclinical hypothyroidism is likely associated with an increased risk of CHD mortality, and subclinical hyperthyroidism is likely associated with increased risk of CHD, CHD mortality, and total mortality.

Association between systemic lupus erythematosus and thyroid dysfunction: a meta-analysis

Lupus ◽  
2018 ◽  
Vol 27 (13) ◽  
pp. 2120-2128 ◽  
Author(s):  
W Luo ◽  
P Mao ◽  
L Zhang ◽  
Z Yang
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Lupus Erythematosus ◽  
Subclinical Hypothyroidism ◽  
Thyroid Dysfunction ◽  
Meta Analysis ◽  
Healthy Controls ◽  
Subclinical Hyperthyroidism ◽  
Systemic Lupus ◽  
Increased Risk ◽  
Chronic Autoimmune Disease

Introduction Systemic lupus erythematosus (SLE) is a chronic autoimmune disease, the pathogenesis of which remains elusive. The deficiency or excess of thyroid hormone is defined as thyroid dysfunction, including (subclinical) hypothyroidism and (subclinical) hyperthyroidism. Autoimmune factors are likely to be relevant to the development of SLE and thyroid dysfunction. Recently, many studies have indicated that the prevalence of thyroid dysfunction is higher in SLE patients than in the general population. The objective of our study was to perform a systematic review and meta-analysis to find out the relationship between SLE and thyroid dysfunction. Methods Literature databases were searched, including PubMed, Embase, Web of science, Cochrane, CNKI, CHINESE WANFANG, China Science and Technology Database (VIP). Studies comparing presence of thyroid dysfunction in SLE patients to healthy controls were extracted. All the statistical analyses were performed with STATA 12.0 software. Results Ten studies with 10,500 SLE patients and 44,170 healthy controls were included in this study. The meta-analysis results showed that the prevalence of (subclinical) hypothyroidism in SLE patients was higher than in the healthy controls (hypothyroidism: OR = 2.93, 95% CI = 1.81–4.75; subclinical hypothyroidism: OR = 5.67, 95% CI = 3.50–9.18). No statistical difference of (subclinical) hyperthyroidism was found between SLE patients and controls. Conclusion Our meta-analysis suggests that SLE is significantly associated with increased risk of (subclinical) hypothyroidism, but it has little influence on (subclinical) hyperthyroidism.

scholarly journals Subclinical thyroid dysfunction and incident atrial fibrillation - a systematic review and meta-analysis

EP Europace ◽  
2021 ◽  
Vol 23 (Supplement_3) ◽  
Author(s):  
H Singh ◽  
MZ Shahid ◽  
SL Harrison ◽  
DA Lane ◽  
GYH Lip ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Systematic Review ◽  
Subgroup Analysis ◽  
Subclinical Hypothyroidism ◽  
Thyroid Dysfunction ◽  
Meta Analysis ◽  
Risk Of Bias ◽  
Subclinical Hyperthyroidism ◽  
Quality Of Evidence

Abstract Funding Acknowledgements Type of funding sources: Other. Main funding source(s): This project was supported by the MRes programme in the Institute of Life Course and Medical Sciences at The University of Liverpool. Thyroid hormones can act directly and indirectly on the cardiovascular system and studies have demonstrated associations between overt and subclinical thyroid dysfunction and adverse cardiovascular outcomes including heart failure, myocardial infarction, and coronary heart disease. The aim of this study was to assess the association between subclinical thyroid dysfunction and atrial fibrillation (AF).  The protocol was registered on PROSPERO (CRD42020221565). MEDLINE and Scopus were searched from inception to 13th November 2020 for studies investigating subclinical thyroid dysfunction and incident AF. Risk of bias was assessed using the Risk of Bias Assessment Tool (RoBANS). The quality of evidence was assessed using the Grading of Recommendations, Assessment, Development, and Evaluations (GRADE) tool. Subgroup analysis was performed for post-operative and non-post-operative AF. 5413 records were identified. Nine cohort studies were suitable for inclusion in the systematic review, of which seven studies were included in the meta-analysis. The meta-analysis comprised 595,058 patients. Subclinical hyperthyroidism was associated with a 99% increase in the risk of incident AF (Risk ratio (RR): 1.99; 95% confidence intervals (CI); 1.43 to 2.77; p &lt; 0.0001; I² = 67%). Subclinical hypothyroidism was also associated with a greater risk of AF (RR: 1.24; 95% CI; 1.05 to 1.47; p = 0.01; I² = 65%). Subgroup analysis demonstrated a 76% increase in the risk of post-operative AF in patients with subclinical hypothyroidism compared to euthyroid post-operative patients (RR: 1.76; 95% CI; 1.36 to 2.28; p &lt; 0.0001; I² = 0%). Six studies were rated as low risk of bias and three as medium risk of bias according to the RoBANS tool. The quality of evidence for AF in subclinical hyper- and hypothyroid patients was low. Subclinical hyperthyroidism and subclinical hypothyroidism were associated with a higher risk of incident AF and post-operative AF, respectively. The quality of the current evidence is low and ideally a randomised controlled trial should be conducted to confirm these associations and assess impacts of treatments. Abstract Figure.

scholarly journals Association between Sleep Duration and Subclinical Thyroid Dysfunction Based on Nationally Representative Data

2019 ◽  
Vol 8 (11) ◽  
pp. 2010 ◽  
Author(s):  
Woojun Kim ◽  
Jeongmin Lee ◽  
Jeonghoon Ha ◽  
Kwanghoon Jo ◽  
Dong-Jun Lim ◽  
...  
Keyword(s):  
Sleep Duration ◽  
Thyroid Function ◽  
Subclinical Hypothyroidism ◽  
Thyroid Dysfunction ◽  
Multiple Logistic Regression Analysis ◽  
Subclinical Hyperthyroidism ◽  
Free T4 ◽  
Representative Data ◽  
Increased Risk ◽  
The Impact

Background: Sleep duration is an identified risk factor for adverse health outcomes. As the endocrine system is closely intertwined with sleep duration and quality, the association between endocrine dysfunction and sleep has been evaluated. Thyroid function, particularly that related to thyrotropin (TSH), is also known to be influenced by the sleep/awake status and circadian rhythm. Additionally, a link between sleep duration and autoimmunity, which is a common cause of thyroid dysfunction, has been suggested; however, depending on the sleep deprivation method used in studies, the effects of sleep on thyroid function vary. The relationship between subclinical thyroid dysfunction and sleep duration is poorly documented. Thus, to elucidate the impact of sleep on thyroid function, we investigated the association of subclinical thyroid dysfunction with sleep duration using representative data from the sixth Korea National Health and Nutrition Examination Survey, conducted from 2013 to 2015. Methods: In all, 4945 participants (2543 male and 2402 female) were included after excluding subjects using the following criteria: <19 years of age, free T4 level outside the normal range, history of thyroid disease, or incomplete data. The population was classified into three groups: short sleeper (<7 h/day), normal sleeper (7–8 h/day), and long sleeper (>8 h/day). The odds ratio (OR) for subclinical hypothyroidism or hyperthyroidism according to sleep duration was evaluated. Results: The short, normal, and long sleeper groups consisted of 2097, 2514, and 334 subjects, respectively. On multiple logistic regression analysis, compared to normal sleepers, short sleepers showed a significantly increased risk of subclinical hyperthyroidism (OR 1.37, 95% confidential interval (CI) 1.02–1.84, p = 0.036), while the risk of subclinical hypothyroidism in short sleepers was not elevated. Comparing long sleepers to normal sleepers, the OR for subclinical hyperthyroidism and hypothyroidism was 1.79 (95% CI 1.12–2.86, p = 0.015) and 1.91 (95% CI 1.03–3.53, p = 0.039), respectively. Conclusions: Both shorter and longer sleep durations were associated with an increase in the risk of subclinical thyroid dysfunction compared to the optimal sleep duration. This analysis of representative population data shows that sleep duration could intertwine with thyroid function resulting in increased risk of subclinical thyroid dysfunction.

scholarly journals The Relation Between Thyroid Function and Anemia: A Pooled Analysis of Individual Participant Data

2018 ◽  
Vol 103 (10) ◽  
pp. 3658-3667 ◽  
Author(s):  
Daisy M Wopereis ◽  
Robert S Du Puy ◽  
Diana van Heemst ◽  
John P Walsh ◽  
Alexandra Bremner ◽  
...  
Keyword(s):  
Thyroid Function ◽  
Subclinical Hypothyroidism ◽  
Sensitivity Analyses ◽  
Overt Hypothyroidism ◽  
Individual Participant Data ◽  
Subclinical Hyperthyroidism ◽  
Thyroid Status ◽  
Increased Risk ◽  
Individual Participant ◽  
Overt Hyperthyroidism

Abstract Context Anemia and thyroid dysfunction often co-occur, and both increase with age. Human data on relationships between thyroid disease and anemia are scarce. Objective To investigate the cross-sectional and longitudinal associations between clinical thyroid status and anemia. Design Individual participant data meta-analysis. Setting Sixteen cohorts participating in the Thyroid Studies Collaboration (n = 42,162). Main Outcome Measures Primary outcome measure was anemia (hemoglobin &lt;130 g/L in men and &lt;120 g/L in women). Results Cross-sectionally, participants with abnormal thyroid status had an increased risk of having anemia compared with euthyroid participants [overt hypothyroidism, pooled OR 1.84 (95% CI 1.35 to 2.50), subclinical hypothyroidism 1.21 (1.02 to 1.43), subclinical hyperthyroidism 1.27 (1.03 to 1.57), and overt hyperthyroidism 1.69 (1.00 to 2.87)]. Hemoglobin levels were lower in all groups compared with participants with euthyroidism. In the longitudinal analyses (n = 25,466 from 14 cohorts), the pooled hazard ratio for the risk of development of anemia was 1.38 (95% CI 0.86 to 2.20) for overt hypothyroidism, 1.18 (1.00 to 1.38) for subclinical hypothyroidism, 1.15 (0.94 to 1.42) for subclinical hyperthyroidism, and 1.47 (0.91 to 2.38) for overt hyperthyroidism. Sensitivity analyses excluding thyroid medication or high levels of C-reactive protein yielded similar results. No differences in mean annual change in hemoglobin levels were observed between the thyroid hormone status groups. Conclusion Higher odds of having anemia were observed in participants with both hypothyroid function and hyperthyroid function. In addition, reduced thyroid function at baseline showed a trend of increased risk of developing anemia during follow-up. It remains to be assessed in a randomized controlled trial whether treatment is effective in reducing anemia.

scholarly journals Subclinical thyroid dysfunction and autoantibodies in acute ischemic and hemorrhagic stroke patients: relation to long term stroke outcome

2022 ◽  
Vol 58 (1) ◽  
Author(s):  
Rania S. Nageeb ◽  
Amr M. Azmy ◽  
Heba F. Tantawy ◽  
Ghada S. Nageeb ◽  
Alaa A. Omran
Keyword(s):  
Atrial Fibrillation ◽  
Subclinical Hypothyroidism ◽  
Thyroid Dysfunction ◽  
Hemorrhagic Stroke ◽  
Thyroid Autoantibodies ◽  
Stroke Outcome ◽  
Subclinical Hyperthyroidism ◽  
Stroke Patients ◽  
Nihss Score

Abstract Background Data regarding the relation between both subclinical thyroid dysfunction, thyroid autoantibodies and clinical outcomes in stroke patients are limited. This study aimed to evaluate subclinical thyroid dysfunction and thyroid autoantibodies production in acute stroke patients and their relation to long term stroke outcome. We recruited 138 patients who were subjected to thorough general, neurological examination and brain imaging. Blood samples were collected for measurement of levels of serum thyroid function [free tri-iodothyronine (FT3), free thyroxin (FT4), thyroid stimulating hormone (TSH)], thyroid autoantibodies within 48 h after hospital admission. FT4 and TSH after 1 year were done. The stroke severity was assessed at admission by the National Institutes of Health Stroke Scale (NIHSS). The stroke outcome was assessed at 3 months and after 1 year by the modified Rankin Scale (mRS). We divided the patients into two groups according to thyroid autoantibodies (positive and negative groups). Results Subclinical hyperthyroidism was found in 23% of patients, and subclinical hypothyroidism in 10% of patients. Euthyroidism was detected in 67% of patients. 34% patients had positive thyroid autoantibody. Positive thyroid autoantibodies were commonly found in those with subclinical hyperthyroidism (28%), followed by subclinical hypothyroidism (21%) and euthyroidism (14%). 73% and 59% of stroke patients had poor outcomes (mRS was > 2) at 3 months and 1 year respectively with no significant difference between ischemic and hemorrhagic stroke patients. In the positive group final TSH level, NIHSS score at admission, and disability at 1 year were significantly higher compared with the negative group. Poor outcome was significantly associated with higher NIHSS score at admission, positive thyroid autoantibodies, subclinical hyperthyroidism, and atrial fibrillation. Conclusions Subclinical thyroid dysfunction could be found in stroke patients with positive thyroid autoantibodies. Subclinical hyperthyroidism and thyroid autoantibodies were associated with a poor outcome at 1 year in first-ever acute stroke patients especially in those presented with atrial fibrillation and higher NIHSS score at admission.

Health inequalities in hospitalisation and mortality in patients diagnosed with heart failure in a universal healthcare coverage system

2018 ◽  
Vol 72 (9) ◽  
pp. 845-851 ◽  
Author(s):  
Raquel Garcia ◽  
Rosa Abellana ◽  
Jordi Real ◽  
José-Luis del Val ◽  
Jose Maria Verdú-Rotellar ◽  
...  
Keyword(s):  
Heart Failure ◽  
Total Mortality ◽  
Community Dwelling ◽  
Socioeconomic Groups ◽  
Universal Healthcare ◽  
Cox Proportional Hazard ◽  
Increased Risk ◽  
Healthcare Coverage ◽  
Cox Proportional Hazard Models ◽  
Universal Healthcare Coverage

BackgroundInformation regarding the effect of social determinants of health on heart failure (HF) community-dwelling patients is scarce. We aimed to analyse the presence of socioeconomic inequalities, and their impact on hospitalisations and mortality, in patients with HF attended in a universal healthcare coverage system.MethodsA retrospective cohort study carried out in patients with HF aged >40 and attended at the 53 primary healthcare centres of the Institut Català de la Salut in Barcelona (Spain). Socioeconomic status (SES) was determined by an aggregated deprivation index (MEDEA). Cox proportional hazard models and competing-risks regression based on Fine and Gray’s proportional subhazards were performed to analyse hospitalisations due to of HF and total mortality that occurred between 1 January 2009 and 31 December 2012.ResultsMean age was 78.1 years (SD 10.2) and 56% were women. Among the 8235 patients included, 19.4% died during the 4 years of follow-up and 27.1% were hospitalised due to HF. A gradient in the risk of hospitalisation was observed according to SES with the highest risk in the lowest socioeconomic group (sHR 1.46, 95% CI 1.27 to 1.68). Nevertheless, overall mortality did not differ among the socioeconomic groups.ConclusionsIn spite of finding a gradient that linked socioeconomic deprivation to an increased risk of hospitalisation, there were no differences in mortality regarding SES in a universal healthcare coverage system.

scholarly journals Evaluation of thyroid dysfunction among type 2 diabetic patients

2014 ◽  
Vol 6 (3) ◽  
pp. 33-37
Author(s):  
Pranav Kumar Raghuwanshi ◽  
Devendra Pratap Singh Rajput ◽  
Bhupendra Kumar Ratre ◽  
Roopesh Jain ◽  
Narmada Patel ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Type 2 Diabetes Mellitus ◽  
Subclinical Hypothyroidism ◽  
Thyroid Dysfunction ◽  
Diabetic Patients ◽  
Subclinical Hyperthyroidism ◽  
Type 2 Diabetic Patients ◽  
Type 2 Diabetic

Background: Diabetes mellitus is a very common endocrinal disorders and incidence of thyroid dysfunction also rising in India and world over. Thyroid hormones directly control insulin secretion and insulin clearance. Diabetes also may affect the thyroid function to variable extent first at the level of hypothalamic control of TSH release and second at peripheral tissue by converting T4 to T3. Aims and Objectives: The present study was carried out aiming to evaluate thyroid dysfunction among type 2 diabetes mellitus patients. Material and Methods: Study included total 80 subjects. Thyroid dysfunction was evaluated by investigating the subjects for Total tri-iodo-thyronine (T3), Total thyroxine (T4) and thyroid stimulating hormone (TSH). Plasma glucose was estimated by- GOD-POD method and Thyroid profile was estimated by- CLIA (chemiluminescence immunoassay) system. Statistical analysis was performed using software statistical package for social sciences (SPSS) version 20, unpaired T test, Pearson’s correlation. Results: In type 2 diabetic patients the prevalence of hypothyroidism and subclinical hypothyroidism was found to be 4(10.00%) and 6(15.00%) respectively, while the prevalence of subclinical hyperthyroidism and hyperthyroidism was found to be 0(0.0%) and 1(2.5%) respectively. In non diabetic healthy subjects the prevalence of hypothyroidism and subclinical hypothyroidism was found to be 1(2.5%) and 3(7.5%) respectively while the prevalence of subclinical hyperthyroidism and hyperthyroidism was found to be 0(0.0%) and 0(0.0%) respectively. Conclusion: The prevalence of thyroid dysfunction was found to be higher in type 2 diabetes mellitus subjects as compared to non-diabetic subjects. DOI: http://dx.doi.org/10.3126/ajms.v6i3.10814Asian Journal of Medical Sciences Vol.6(3) 2015 33-37  

scholarly journals The Association with Subclinical Thyroid Dysfunction and Uric Acid

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Yuling Xing ◽  
Linlin Yang ◽  
Jing Liu ◽  
Huijuan Ma
Keyword(s):  
Uric Acid ◽  
Subclinical Hypothyroidism ◽  
Thyroid Dysfunction ◽  
Meta Analysis ◽  
Serum Levels ◽  
Subclinical Hyperthyroidism ◽  
Funnel Plot ◽  
Different Types ◽  
Standardized Mean Difference ◽  
The Relationship

The relationship between subclinical thyroid dysfunction and uric acid was not well established. This study aimed to determine if subclinical thyroid dysfunction is associated with hyperuricemia risk and to evaluate the levels of uric acid in patients with different forms of subclinical thyroid dysfunction. A systematic search was conducted in 4 databases to obtain relevant studies on subclinical thyroid dysfunction (subclinical hyperthyroidism and subclinical hypothyroidism) and uric acid. The standardized mean difference (SMD) or odds ratio (OR) and 95% confidence interval (95% CI) were used for evaluation, and the sensitivity analysis was conducted. Publication bias was estimated by funnel plot, Egger’s test, and Begg’s test. A total of 73 studies were included in this meta-analysis. The results demonstrated that serum levels of uric acid in patients with subclinical hypothyroidism were significantly higher than those of controls and patients with subclinical hyperthyroidism. Patients with subclinical thyroid dysfunction had a higher prevalence of hyperuricemia compared with normal clinical thyroid function. Subclinical thyroid dysfunction was associated with the prevalence of hyperuricemia. Different types of subclinical thyroid dysfunction had varied effects on serum levels of uric acid.

scholarly journals Clinical Implication of TSH Screening in Venous Thromboembolism Patients

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. A826-A827
Author(s):  
Siroj Dejhansathit ◽  
Ana Marcella Rivas Mejia ◽  
Kenneth Nugent
Keyword(s):  
Cohort Study ◽  
Venous Thromboembolism ◽  
Thyroid Dysfunction ◽  
Chart Review ◽  
Medical Center ◽  
Prior History ◽  
Subclinical Hyperthyroidism ◽  
Multicenter Cohort Study ◽  
Increased Risk ◽  
History Of

Abstract Background: Venous thromboembolism (VTE) that have significant morbidity and mortality for patients in the community and hospital. A recent meta-analysis found a significantly increased risk of incidence VTE among patients with hyperthyroidism compared to patients without hyperthyroidism. To our knowledge, no study has attempted to explore whether screening for TSH levels in VTE patients leads to a diagnosis of undiagnosed thyroid dysfunction as VTE could be the first presenting symptom. Method: We conducted a retrospective cohort study and analyzed data of all patients treated at University Medical Center, Lubbock, Texas in 18-85 years of age with a diagnosis of DVT and/or PE in 2019. Qualitative chart review to identify cases of clinically significant TSH screening in VTE patients that leads to thyroid dysfunction diagnosis. Associations between variables tested using Student’s t-test, chi-square, and Fisher’s exact test. Results: Of total of 533 participants with diagnosis of VTE in 2019, 85 participants were included in the study. Seven participants (8.24%) were found to have high TSH level (&gt;4.2 mIU/mL). None of them was found to have low level of TSH. Participants in high TSH group were more likely to be female (71.43%) and Caucasian (71.43%). In high TSH group patients tended to have both PE and DVT diagnosis at the same admission (71.43%). Weight and BMI were significance higher than those with normal TSH level. Segna et al conducted a prospective multicenter cohort study on association between thyroid dysfunction and venous thromboembolism. The study measure thyroid hormones and thrombophilic biomarkers at 1 year after the acute VTE and follow for the recurrent VTE (rVTE). They found that after 20.8 months of follow-up, 9% developed rVTE. However, none of them was found in subclinical hyperthyroidism group. Furthermore, in their multi-variate analyses, the hazard ratio for rVTE was 0.80 (95%CI 0.23-2.81) subclinical hyperthyroidism compared with euthyroid participants. They concluded that subclinical hyperthyroidism may be associated with lower rVTE risks. Similarly, with Liviu study found hyperthyroidism was not associated with an increased risk of VTE. Qualitative chart review in our patients with high TSH resulted that none of them had history of tobacco use. One participant was on birth control pills with the history of cervical carcinoma. Conclusion:The association of thyroid dysfunction and the development of VTE is debated on the literature review. In our study we found multiple patients with high TSH level (8.24%) in VTE patients with no prior history of thyroid dysfunction. TSH could play an important role in hypercoagulable state. Subclinical hypothyroidism and/or hypothyroidism may induce a prothrombotic event. However, larger cohort studies with higher prevalence of high TSH participants are needed to prove a relationship between TSH level and VTE events.

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