Restrictive impairment in patients with asthma.

  title={Restrictive impairment in patients with asthma.},
  author={Albert Miller and Agnes Palecki},
  journal={Respiratory medicine},
  volume={101 2},
BACKGROUND Patients with asthma have intermittent or persistent airflow obstruction, most often manifested spirometrically by reduced forced expiratory volume in 1s (FEV(1)) and FEV(1)/vital capacity (VC) ratio. In some patients, the VC may be reduced by air trapping, with an increase in functional residual capacity (FRC) and residual volume (RV) (pseudorestriction). We have reported 12 asthmatic patients with reduced VC and no increase in RV, i.e., a true restrictive impairment [Gill et al… CONTINUE READING
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