Background Cardiac troponin provides diagnostic and prognostic information in acute coronary syndromes, but its role in acute decompensated heart failure is unclear.

• 背景：心肌肌钙蛋白为急性冠脉综合症提供诊断和预后信息，但是它在失代偿性心力衰竭中的地位尚不清楚。