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小儿肺炎并发心力衰竭非常多见,且为重症肺炎死亡的主要原因之一。我科1978～1982年统计364例重症肺炎,其中病毒性肺炎并发心力衰竭者为60.1％,细菌性肺炎并发心力衰竭者为39.7％。死亡率为9.83％。因此,小儿肺炎并发心力衰竭的早期诊断和及时地抢救治疗极为重要。一、婴幼儿肺炎并发心力衰竭的发病机制由于肺部炎症妨碍通气和换气功能,常导致缺氧和二氧化碳储留,肺微循环障碍,因而产生肺动脉高压,引起右心负荷增加。缺氧和微生物毒素直接作用于心肌,使心肌能量代谢降低;能量的产生和储存减少,使心脏功能受损,另外还有一部分病人由于同时发生了心肌炎,使心脏的收缩力减弱。再加上小儿左右心胜的解剖生理特点不同,当肺循
Infantile pneumonia complicated by heart failure is very common, and one of the major causes of death from severe pneumonia. Our department from 1978 to 1982, 364 cases of severe pneumonia statistics, including viral pneumonia in patients with heart failure was 60.1%, bacterial pneumonia complicated with heart failure were 39.7%. The death rate was 9.83%. Therefore, early diagnosis of pneumoconiosis complicated with heart failure and prompt rescue treatment is extremely important. First, the pathogenesis of infant pneumonia complicated with heart failure due to pulmonary inflammation prevent ventilation and ventilation, often lead to hypoxia and carbon dioxide storage, pulmonary microcirculation, resulting in pulmonary hypertension, causing increased right heart load. Hypoxia and microbial toxins directly on the myocardium, myocardial energy metabolism decreased; energy production and storage reduction, impaired cardiac function, in addition there are some patients due to the simultaneous occurrence of myocarditis, the contraction of the heart weakened. Coupled with the heart of children around the different anatomical and physiological characteristics, when the lungs