据近年调查,小儿肺炎患者人数占小儿住院总人数的24.5～56.2%,其中2岁以内的婴幼儿患者最多,占85.4～92.6%。婴幼儿肺炎常累及心功能,甚至导致心力衰竭。据统计,约有1/3的小儿肺炎患者并发心力衰竭。并发心力衰竭的机理为:①严重缺氧和酸中毒使心肌收缩力减弱,心率减慢,心律失常甚 According to recent surveys, the number of pediatric pneumonia patients accounts for 24.5% to 56.2% of the total pediatric hospitalization, of which infants and young children within 2 years of age are the most, accounting for 85.4% to 92.6%. Infantile pneumonia often involves heart function, and even lead to heart failure. According to statistics, about 1/3 of children with pneumonia complicated by heart failure. Concurrent heart failure mechanism: ① severe hypoxia and acidosis so that myocardial contractility weakened, slow heart rate, arrhythmia