新生儿肺部超声在早产儿肺部感染评价中的价值

目的 探讨新生儿肺部超声在早产儿肺部感染评价中的价值。 方法 选取肺部感染早产儿80例为观察组，无肺部感染的早产儿80例为对照组，均给予新生儿肺部超声检查，比较2组肺部超声评分、氧合指数、呼吸指数，比较观察组不同病情、预后患儿肺部超声评分、氧合指数、呼吸指数,分析肺部超声评分和氧合指数、呼吸指数的相关性。 结果 观察组肺部超声评分、氧合指数低于对照组，呼吸指数高于对照组，差异有统计学意义（P＜0.05）。观察组极危重患儿肺部超声评分、氧合指数低于危重和非危重患儿，呼吸指数高于危重和非危重患儿，危重患儿肺部超声评分、氧合指数低于非危重患儿，呼吸指数高于非危重患儿，差异有统计学意义（P＜0.05）。肺部超声评分与呼吸指数呈负相关（r=-0.455，P＜0.05），与氧合指数呈正相关（r=0.470，P＜0.05）。观察组死亡患儿肺部超声评分、氧合指数低于存活患儿，呼吸指数高于存活患儿，差异有统计学意义（P＜0.05）。肺部超声评分预测患儿预后的ROC曲线下面积为0.874，高于呼吸指数和氧合指数（P＜0.05），其截断值为20分时，敏感度和特异度为88.50%和75.00%。 结论 新生儿肺部超声在早产儿肺部感染评价中有较好的效果，值得临床使用。

The value of neonatal lung ultrasound in the evaluation of pulmonary infection in premature infants

ObjectiveTo explore the value of neonatal pulmonary ultrasound in the evaluation of pulmonary infection in premature infants.MethodsIn total, 80 preterm infants with pulmonary infection were selected as the observation group, and 80 preterm infants without pulmonary infection were selected as the control group. All of them were given neonatal pulmonary ultrasound examination. The pulmonary ultrasound score, oxygenation index and respiratory index of the two groups were compared. The pulmonary ultrasound score, oxygenation index and respiratory index of the children with different conditions and prognosis in the observation group were compared, and the correlation between the pulmonary ultrasound score, oxygenation index and respiratory index was analyzed.ResultsThe pulmonary ultrasound score and oxygenation index of the observation group were lower than those of the control group, and the respiratory index was higher than that of the control group(P＜0.05). In the observation group, the pulmonary ultrasound score and oxygenation index of extremely critical children were lower than those of critical and non-critical children, and the respiratory index was higher than that of critical and non-critical children. The pulmonary ultrasound score and oxygenation index of critical children were lower than those of non-critical children, while the respiratory index was higher than that of non-critical children, suggesting significant differences(P＜0.05). The pulmonary ultrasound score was negatively correlated with respiratory index(r=-0.455, P＜0.05) and positively correlated with oxygenation index(r=0.470, P＜0.05). In the observation group, the pulmonary ultrasound score and oxygenation index of the dead children were lower than those of the surviving children, and the respiratory index was higher than that of the surviving children, with a significant difference(P＜0.05). The area under receiver operating characteristic(ROC) curve of pulmonary ultrasound score for predicting prognosis of children was 0.874, which was higher than that of respiratory index and oxygenation index(P＜0.05). When the cutoff value was 20 points, the sensitivity and specificity were 88.50% and 75.00% respectively.ConclusionNeonatal pulmonary ultrasound has a good effect in the evaluation of premature infants with pulmonary infection, which is worthy of clinical application.