Objective To investigate the kidney blood dynamic change in babies with severe pneumonia under echocardiography. Methods Color Doppler and power Doppler were used to detect the change of renal hemodynamics in 38 cases of severe pneumonia children and 24 normal control groups. Multi-samples test was used to measure the values of normal control group and self-recovery group. Results For children with severe pneumonia in acute phase the main renal artery, stenotic renal artery interlobar renal artery, and the peak systolic velocity branch, end diastolic minimum velocity of arcuate renal arterie were significantly decreased (P <0.05), while resistance index, pulaatility index was significantly raised (P <0.05). There was no distinct difference with the data of control group in recovery stage. Conclusion Doppler ultrasound monitoring renal artery flow is one of sensitive indices to test severe pneumonia children with kidney damage and it is significant in improving the prognosis of patients and therapeutic evaluation.%目的 探讨彩超检测重症肺炎患儿的肾血液动力学变化的意义.方法 应用彩色多普勒与能量多普勒相结合的方法测定38例不同病程小儿重症肺炎及24例正常对照组的肾血流动力学变化,测定值与正常对照组及恢复期进行多标本t检验分析.结果 重症肺炎患儿急性期肾门部肾动脉主干、肾段动脉、叶间动脉、弓状动脉收缩期峰值流速、舒张末期流速较正常对照组均下降(P＜0.05),阻力指数、搏动指数明显增高(P＜0.05),恢复期与正常对照组各项测定值比较,差异无统计学意义.结论 多普勒超声检测肾动脉血流参数变化是评价重症肺炎患儿肾脏损害的敏感指标之一,对改善患儿的预后及评价疗效有重要的意义.
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