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Background and Aims High sensitivity cardiac troponin-T (hs-cTnT) are prognostic markers in patients with stable cardiovascular (CV) disease but limited study investigated the CV outcome association in asymptomatic patients receiving hemodialysis (HD). We evaluated the prognostic value of hs-cTnT in predicting CV events in stable HD patients. Method A total of 341 stable HD patients was included in this prospective cohort study. Baseline hs-cTnT was measured by Roche hs-cTnT assays. Patients were followed up for 3 years or until first CV event, which was defined a composite endpoint of acute coronary syndrome, ischemic stroke, or hospitalization for heart failure. Cox proportional hazards model was used to determine independent predictors of CV events. The importance of hs-cTnT compared to other clinical parameters was evaluated by random forests algorithm in Gini index. Results The HD patients enrolled in this study was 59.2 ± 11.5 87 years old, 53.4% male, 42.5% had diabetes, 76.8% had hypertension, 17.6% had coronary artery disease, and 9.1% had cerebrovascular disease. In multivariate Cox regression analysis, the circulating hs-cTnT levels were independent associated with CV events (HR 2.31; 95% CI 1.21-4.40; p-value=0.011) after adjusting for confounders. Multivariable model showed prognostic significance, with the c-statistics of 0.75. The addition of baseline hs-cTnT to established risk factors improved risk prediction of CV events (c-statistics of 0.76; integrated discrimination improvement = 0.02, P = 0.049). Gini index demonstrated hs-cTnT was more important than other clinical parameters for CV events prediction. Conclusion Circulating hs-cTnT levels independently predicted CV events in chronic HD patients. CV risk in HD patients could be stratified according to hs-cTnT levels. The results suggest the useful property of hs-cTnT as an end-organ damage marker reflecting subclinical cardiac injury.

P1289CIRCULATING HIGH SENSITIVITY CARDIAC TROPONIN-T WAS AN IMPORTANT PREDICTIVE MARKER FOR CARDIOVASCULAR EVENTS IN HEMODIALYSIS PATIENTS