The Value Of Lung Ultrasound In Patients With Neonatal Infectious Pneumonia

Objective: By the control study of lung ultrasound and bedside chest X-ray in diagnosing infectious pneumonia of the newborn, to analyze the consistency of them in diagnosing the neonatal infectious pneumonia. To discuss the correlation of lung ultrasound score and clinical severity in infectious pneumonia of the newborn, and study the assessing value of lung ultrasound score.Methods: From May 2016 to Norvember 2016, 103 neonates admitted to the neonatal intensive care unit of the Second Affiliated Hospital of Kunming Medical University,were divided into two groups: 77 neonates (experimental group)with clinical diagnosis of infectious pneumonia, and 30 neonates with no lung disease (control group). Of all the research object 32 were received lung ultrasound and bedside chest X-ray within 36h, the positive findings were interstitial syndrome, lung consolidation,pleural line abnormalities, A lines disappearing, pleural effusion, collect the results of bedside CXR, and regarding clinical diagnosis of infectious pneumonia of the newborn as the "gold standard",to analyze the consistency of lung ultrasound and bedside chest X-ray in diagnosing the neonatal infectious pneumonia. Collecting relevant laboratory data and image data of 77 cases with infectious pneumonia,and according to the neonatal critical illness score divided them into the control group、non-critical group and critical group, all the studying object received lung ultrasound score. Analyzing the correlation of lung ultrasound score and neonatal critical illness score by Pearson correlation analysis; after testing the three groups by multiple samples rank sum tests, each two groups of the three groups respectively test by two samples rank sum test to analysis of differences between them. The software SPSS 19.0 is employed to analyze all the datas.Results:1.32 cases of all the newborns with infectious pneumonia had received bedside chest X-ray, the result of the chest X-ray is: 5 cases are negative, 27 cases are positive. The result of the lung ultrasound is: 3 cases are negative,29 cases are positive. What’s more, the lung ultrasonographic findings are: interstitial syndrome 29 ( 96%)、lung consolidation 13 (40%)、A lines disappearing 29(96%)、pleura lines abnormal 27(84%)、pleural effusion 2 (0.6%)。2.The results of bedside chest X-ray and lung ultrasound for diagnosing neonatal infectious pneumonia are test by Matching chi-square test(Sig=0.687), the two have a good consistency for diagnosing infectious pneumonia of the newborn in neonatal intensive care unit.3.The Pearson correlation analysis between lung ultrasound score and neonatal critical illness score indicated that lung ultrasound score was negatively correlated with neonatal critical illness score(r=-0.705, P<0.05).4. Lung ultrasound score of the control group、non-critical group and critical group has statistical difference by multiple samples rank sum tests (P < 0.05), the score of the critical group was higher than the non-critical group. Each two groups of the three groups respectively test by two samples rank sum test, lung ultrasound score has statistical difference between each two groups after Bonferroni correction (P<0.0167).Conclusions:1. The consistency of lung ultrasound and bedside chest X-ray in diagnosing the infectious pneumonia of the newborn is good.2. Lung ultrasound score effectively can estimate the severity of the neonatal infectious pneumonia. The condition of neonatal infectious pneumonia is more severity, lung ultrasound score is higher.