Clinical characteristics of COPD patients with tidal expiratory flow limitation

被引:28
作者
Dean, James [1 ]
Kolsum, Umme [1 ,2 ,3 ]
Hitchen, Paul [1 ]
Gupta, Vandana [1 ]
Singh, Dave [1 ,2 ,3 ]
机构
[1] Med Evaluat Unit, Manchester, Lancs, England
[2] Univ Manchester, Div Infect Immun & Resp Med, Sch Biol Sci,Fac Biol Med & Hlth, Manchester Acad Hlth Sci Ctr, Manchester, Lancs, England
[3] Manchester NHS Fdn Trust, Univ Hosp South, Manchester, Lancs, England
关键词
COPD; expiratory flow limitation; IOS; small airway; reactance; OBSTRUCTIVE PULMONARY-DISEASE; STANDARDIZATION; LUNG; HYPERINFLATION;
D O I
10.2147/COPD.S137865
中图分类号
R56 [呼吸系及胸部疾病];
学科分类号
摘要
We have used impulse oscillometry to identify COPD patients with tidal expiratory flow limitation (EFL), which is a measurement related to small airway disease. We report that 37.4% of COPD patients had EFL; these patients had multiple clinical characteristics of more severe disease including lower forced expiratory volume in 1 second values, greater hyperinflation, reduced exercise performance, and increased small airway impairment. We highlight that EFL can be used to identify a subgroup of COPD patients with distinct characteristics associated with small airway disease.
引用
收藏
页码:1503 / 1506
页数:4
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