Neither measure is particularly accurate in characterizing severity, and neither measure is superior to the other.CLINICAL IMPLICATIONS: Spirometry must be used with caution when grading the severity of restrictive pulmonary disease.DISCLOSURE: The following authors have nothing to disclose: Sean Roark, ...
FEV1FEV6是替代FEV1FVC诊断阻塞性通气功能障碍的良好指标.pdf,·中文论著摘要· 碍的良好指标 目的, FEVl/FVC诊断阻塞性通气功能障碍,及其相应的诊断截点。 方法 来自辽宁地区的940名受试者,年龄在18岁以上,可完成合格的肺功能测试 过程,并且呼气时间至少是6秒。数
Moreover, the Obstructive Index, defined as a ratio of FVC to the volume-difference between two points of half of the peak expiratory flow rate (PEFR) on the MEFV curve, has been recently associated with the extent of emphysema, independently of other spirometric indices44. Peak expiratory ...
Restrictive spirometry (RS) and preserved ratio impairment spirometry (PRISm) are widely used conditions, assumed to be characterized by proportionate reductions in FEV1 (PRISm) and FVC (RS) in the presence of a non-obstructive FEV1/FVC ratio. Limited data are available to assess the assumption ...