心力衰竭是一种临床综合征,由心脏疾病使心排血量减少,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。小儿心力衰竭的病因、发病机制与成人心力衰竭存 Heart failure is a clinical syndrome characterized by reduced cardiac output and increased venous pressure from heart disease, resulting in systemic pathophysiological responses (neurological, body fluids, kidneys and others), symptoms and signs, and associated molecular abnormalities. Degenerative heart progressive deterioration. Heart failure is a common emergency in children, if not treated in time, can be life-threatening. The etiology and pathogenesis of pediatric heart failure and adult heart failure