title: Relation of triiodothyronine to subclinical myocardial injury in patients with chest pain.
abstract: Heart dysfunctions have been shown to be associated with altered concentrations of thyroid hormones. However, the relation between thyroid hormones and subclinical myocardial injury in those without clinically apparent coronary heart disease is not well-established. We examined the correlation between altered levels of thyrotropin, free thyroxine, and triiodothyronine (T3) and high-sensitivity cardiac troponin T (hs-cTnT) in 250 patients (mean age 60 years; 42% men) with chest pain, who were free of coronary heart disease and heart failure. These patients were examined in the emergency room or outpatient department of the cardiovascular center of Chosun University Hospital. Multivariate logistic regression models were used for statistical analysis. The baseline values of T3 were associated with elevated hs-cTnT levels (r = -0.428, p <0.001), a significantly negative correlation. We did not observe any significant correlation between the thyrotropin or free thyroxine and hs-cTnT levels. When the T3 cutoff was set at 74.6 ng/dl using the receiver operating characteristic curve, the sensitivity and specificity was 70% and 69%, respectively, for differentiating between groups with and without myocardial injury. After adjusting for traditional risk factors, the odds ratio for an elevated hs-cTnT level (≥0.014 ng/ml) for patients with T3 <74.6 ng/dl was 6.95 (95% confidence interval 3.09 to 15.66) compared to patients with T3 ≥74.6 ng/dl. In conclusion, the T3 levels were negatively related to hs-cTnT levels among patients without clinically obvious coronary heart disease.
authors: Department of Internal Medicine, Chosun University School of Medicine, Gwangju, Republic of Korea.
authors: Bo-Bae
authors: BB
authors: Kim
authors: Yo-Han
authors: YH
authors: Ku
authors: Jung-Yeon
authors: JY
authors: Han
authors: Jung-Min
authors: JM
authors: Ha
authors: Geon
authors: G
authors: Park
authors: Dong-Hyun
authors: DH
authors: Choi
authors: Heesang
authors: H
authors: Song
mesh_terms: D000368:Aged; D019540:Area Under Curve; D015415:Biomarkers / Q000097:blood*; D002637:Chest Pain / Q000097:blood*; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000097:blood*; D012372:ROC Curve; D012307:Risk Factors; D012680:Sensitivity and Specificity; D013972:Thyrotropin / Q000097:blood; D013974:Thyroxine / Q000097:blood; D014284:Triiodothyronine / Q000097:blood*; D020107:Troponin T / Q000097:blood
chemical_list: D015415:Biomarkers; D020107:Troponin T; D014284:Triiodothyronine; D013972:Thyrotropin; D013974:Thyroxine