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Abstract Objective To investigate the association of tri odothyronine (T3) with ST- segment resolution (STR) and clinical outcome in patients with ST segment elevated myocardial infarction (STEMI) underwent percutaneous coronary intervention (PCI). Methods Data of 205 consecutive patients with STEMI underwent primary PCI were retrospectively analyzed. Multiple logistic regression analysis was used to determine the relationship between serum T3 level and STR index and in- hospital cardiovascular events. Results Low T3 was an independent predictor of incomplete STR post PCI and in- hospital acute heart failure attack. Other risk factors for incomplete STR included troponin I, left ventricular ejection fraction and TIMI grade post PCI. Renal failure, elevated brain natriuretic peptide and incomplete STR were risk factors for in- hospital heart failure. Conclusion Low T3 is associated with incomplete STR after primary PCI as wel as in- hospital acute heart failure in patients with STEMI.
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