Svenonius E, Lecerof H, Lilja B, Arborelius M, Kautto R
Acta Paediatr Scand. 1978 Sep;67(5):583-9. doi: 10.1111/j.1651-2227.1978.tb17806.x.
The volume of trapped gas (VTG) was measured at the end of a nitrogen multiple breath wash out procedure in 16 asthmatic and 10 healthy children before and after exercise. When compared to conventional spirometric variables VTG was the most sensitive test for detection of exercise-induced asthma (EIA). The VTG was significantly higher before exercise in the asthmatic children and increased significantly after exercise, while it did not change in the healthy controls. The significance of changes caused by EIA increased if VTG/TLC % or VTG/VC % wer used. Salbutamol inhalation normalized the VTG in all the asthmatic children.
在16名哮喘儿童和10名健康儿童运动前后,通过氮多次呼吸冲洗程序测量了潴留气体量(VTG)。与传统肺量计变量相比,VTG是检测运动诱发性哮喘(EIA)最敏感的测试。哮喘儿童运动前的VTG显著更高,运动后显著增加,而健康对照组则无变化。如果使用VTG/TLC%或VTG/VC%,EIA引起的变化的显著性会增加。沙丁胺醇吸入使所有哮喘儿童的VTG恢复正常。