儿童用力通气肺功能与脉冲振荡肺功能检查

摘要

Routine pulmonary function tests are common in clinical practice to reflect lung ventilation function; and the flow-loop spirometry can specifically assess small airway function in particular. Impulse oscillometry pulmonary function is different from conventional pulmonary function tests in mechanism; its advantage is no special respiratory movements required thus suitable for children. Children over age of 3 can complete test independently. The parameters, like lung resistance and lung compliance, can be directly obtained. Large and small airway dysfunction can be distinguished. These two methods are with different mechanisms but when being implemented in combination they are complementary to each other to facilitate clinical diagnosis.%用力通气肺功能检查是临床医师最为熟知的肺功能检查方法,其常用指标可以反映肺的通气功能,特别是流速-容量曲线可以形象、具体地评估小气道功能.脉冲振荡肺功能检查在原理上区别于常规肺功能检查,其最大优势是不需要特殊呼吸动作的配合,3岁以上儿童均可完成,各项指标可以直接反应肺阻力和肺顺应性的信息,并能区分大小气道病变.尽管两种肺功能检查的方法、原理不同,但综合分析,判断各项指标,相互补充,可以更好地为临床诊断提供依据.