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Background  Cardiac autonomic dysfunction caused by ischemic stroke might lead to an adverse outcome. Elevated high sensitivity cardiac troponin (hs-cTnT) is a marker of cardiac disease, it can elevate in acute stroke patients. The aim of the present study was to investigate association between serum hs-cTnT with prognosis among patients with acute ischemic stroke.    Methods  Five hundred and sixteen patients (mean age 66.19 ± 10.11) with acute ischemic stroke underwent a comprehensive clinical investigation and serum hs-cTnT activity test. All patients were followed up for 3 months. The prognosis was death or major disability (modified Rankin Scale score ≥ 3) at 3 months after acute ischemic stroke.    Results  22.87% (118/516) of patients had serum hs-cTnT elevation (≥14 ng/l). Compared with normal hs-TnT group, the incidence of insular stroke (adjusted odds ratio, 2.84; 95% confidence interval, 1.48–4.17;  P  = 0.001) were more likely in patients with hs-cTnT elevation. In fully adjusted models, there was an association between serum hs-cTnT elevation and death (adjusted odds ratio, 3.14; 95% confidence interval, 1.16–8.49;  P  = 0.02) and major disability(adjusted odds ratio, 2.07; 95% confidence interval, 1.04–4.51;  P  = 0.04), and composite outcome(adjusted odds ratio,2.22;95% confidence interval,1.10–4.48;  P  = 0.03).    Conclusions  Higher levels of serum hs-cTnT were independently associated with increased risk of death or major disability after stroke onset, suggesting that serum hs-cTnT may have prognostic value in poor outcomes of ischemic stroke.

The clinical prognostic significance of hs-cTnT elevation in patients with acute ischemic stroke