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目的:探讨高敏肌钙蛋白T(high sensitivity troponin T,hs-cTnT),血清可溶性人基质裂解素2(soluble suppression of tumorigenicity 2,sST2)及B型利钠肽(BNP)对伴有射血分数降低的慢性心力衰竭(heart failure with reduced ejection fraction,HFrEF)危险分层及预后评估的价值。方法:收集左室射血分数(left ventricular ejection fraction,LVEF)≤40