期刊
EUROPEAN JOURNAL OF ENDOCRINOLOGY
卷 165, 期 1, 页码 107-114出版社
BIOSCIENTIFICA LTD
DOI: 10.1530/EJE-11-0062
关键词
-
资金
- European Collaborative project [247945-FP7-ICT-2009-4]
Objective: This study investigated whether changes in thyroid hormone (TH) in plasma are associated with the recovery of cardiac function in patients with acute myocardial infarction (AMI). Previous experimental studies have provided evidence of potential implication of TH signaling in post-ischemic recovery of cardiac function. Methods: A total of 47 patients with AMI and early reperfusion therapy were included in this study. Myocardial injury was analyzed by peak creatinine kinase-MB(CKMB) and cardiac function was assessed by echocardiographic left ventricular ejection fraction (LVEF%). Recovery of function (Delta EF%) was estimated as the difference of LVEF% between 48 h and 6 months (6 mo) after AMI. Total triiodothyronine (T-3), thyroxine (T-4), and TSH were measured in plasma at different time points (24 h, 48 h, 5 d, and 6 mo). Results: A significant correlation between LVEF% and T-3 (r=0.5, P=0.0004) was found early after AMI (48 h), whereas no correlation was observed between CKMB and T-3 (r=-0.04, P=0.81). A strong correlation was found between Delta EF% and total T-3 (r=0.64, P=10(-6)) at 6 mo after AMI. Furthermore, multivariate regression analysis revealed that T-3 at 6 mo (r=0.64, r(2)=0.41, P=10(-6)) was an independent determinant of Delta EF%. Conclusion: Changes in T3 levels in plasma are closely correlated with the early and late recovery of cardiac function after AMI. T-3 levels at 6 mo appear to be an independent predictor of late functional recovery.
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