B型利钠肽是一种主要由心室肌细胞分泌的肽类激素,在体液平衡的调节中发挥关键作用。大量研究证实,血浆利钠肽水平在急性心肌梗死时升高,而且心肌梗死范围越大,血浆利钠肽水平越高,还与心肌梗死后心室重构、心力衰竭及预后等密切相关。因此,血浆利钠肽可以用于心肌梗死的诊断和预后的评估。 B-type natriuretic peptide, a peptide hormone secreted mainly by ventricular myocytes, plays a key role in the regulation of body fluid balance. Numerous studies have shown that plasma levels of natriuretic peptide in patients with acute myocardial infarction increased, and the greater the scope of myocardial infarction, the plasma level of natriuretic peptide is higher, but also with myocardial infarction after ventricular remodeling, heart failure and prognosis are closely related. Therefore, plasma natriuretic peptide can be used in the diagnosis and prognosis of myocardial infarction.