心力衰竭是一种复杂的临床综合征,由心脏疾患使心排血量减少,静脉压力增高,导致全身性病理生理反应(神经、体液、肾脏及其他)症状及体征,并伴有分子异常,使衰竭的心脏进行性恶化。心力衰竭是小儿常见的急症,如不及时处理,可危及生命。然而,心力衰竭患儿尤其是早期,尚缺乏简单、经济、实用的检测手段。目前国内外公认的脑钠肽 Heart failure is a complex clinical syndrome characterized by reduced cardiac output and increased venous pressure due to heart disease, leading to symptoms and signs of systemic pathophysiological reactions (neurological, body fluids, kidneys and others) accompanied by molecular abnormalities, The failure of the heart progressive deterioration. Heart failure is a common emergency in children, if not treated in time, can be life-threatening. However, children with heart failure, especially in the early stage, lack simple, economical and practical testing methods. Currently recognized brain natriuretic peptide