% 0期刊文章% Anagnostopoulou, Pinelopi % Latzin,菲利普%詹森,蕾妮%斯塔尔,Mirjam %哈珀,阿拉娜% Yammine,苏菲% Usemann, Jakob % Foong,雷切尔·e·% Spycher,本%一个大厅,格雷厄姆•l . %歌手Florian % Stanojevic, Sanja %一个商场,马库斯A % Ratjen,菲利克斯%拉姆齐,凯瑟琳A % T规范数据为多个呼吸冲刷结果学龄白人儿童% D 2020% R 10.1183/13993003.01302 -2019% J欧洲呼吸杂志% P 1901302 % V 55% N 4% X背景多呼吸氮冲刷(N2MBW)技术正越来越多地用于评估通风的程度不均匀性在学龄儿童肺病。然而,参考价值健康儿童目前不可用。本研究的目的是为N2MBW生成引用值结果在一群健康的白人学龄儿童。方法N2MBW数据从健康白种人学龄儿童6 - 18岁收集从四个经验丰富的中心。使用超声波流量计进行测量(Exhalyzer D, Eco医生AG) Duernten,瑞士)和分析商业软件(Spiroware 3.2.1版本,Eco医生AG)。规范性价值观和正常(ULN)的上限为肺间隙生成指数(LCI) 2.5% (LCI2.5%)和5% (LCI5%)初始氮浓度和时间比率(M1 / M0和M2 / M0)。一个预测方程生成的功能余气量(FRC)。结果分析使用485次试验从180年健康白种人的孩子年龄在6到18岁。虽然LCI随着年龄的增加,这种增加是可以忽略不计(0.04单位LCI2.5%·1年),因此固定ULN定义这个年龄段。LCI2.5%这些限制是7.91,5.73 LCI5%, 1.75 M1 / M0和6.15平方米/ M0,分别。 Height and weight were found to be independent predictors of FRC.Conclusion We report reference values for N2MBW outcomes measured on a commercially available ultrasonic flowmeter device (Exhalyzer D, Eco Medics AG) in healthy school-aged children to allow accurate interpretation of ventilation distribution outcomes and FRC in children with lung disease.This study provides reference values for nitrogen multiple breath washout outcomes in healthy Caucasian children from 6 to 18 years old, measured with a commercially available device http://bit.ly/2rsab8v %U //www.qdcxjkg.com/content/erj/55/4/1901302.full.pdf