婴幼儿肺炎引致重症原因,主要为合并急性心力衰竭(下称心衰)、急性呼吸衰竭(呼衰)等,今就其诊断问题进行讨论。合并急性心衰的诊断1.病理生理改变:小儿重症肺炎,由于严重缺氧引起肺动脉痉挛和全身微循环障碍,终于招致肺动脉高压。当肺动脉高压时,引起右心室舒张终末期血容 Infants and young children cause severe pneumonia, mainly for the merger of acute heart failure (hereinafter referred to as heart failure), acute respiratory failure (respiratory failure), etc., to discuss its diagnosis. Diagnosis of acute heart failure 1. Pathophysiological changes: Severe pneumonia in children, due to severe hypoxia caused by pulmonary vasospasm and systemic microcirculation, and finally lead to pulmonary hypertension. When pulmonary hypertension, diastolic right ventricular end-stage caused by blood volume