Children With Cystic Fibrosis May Be Performing Oscillating Positive Expiratory Pressure Therapy?Incorrectly

摘要

Figures Figure?1 Scatter plot of peak flow and pressure for all expirations. Target therapeutic range of 10 to 20?cmHsub2/subO, at a flow rate of 10 to 20 L/min is shown in the shaded box. For more than 40 years, chest physiotherapy has been the primary mechanism to remove excess secretions and break the cycle of obstruction, infection, inflammation, and damage to pulmonary tissue in patients with cystic fibrosis (CF). Oscillating positive expiratory pressure (OPEP) devices have become ubiquitous internationally as aids to remove excess secretions and trapped gas for patients with hypersecretory conditions.sup1/sup During OPEP therapy, patients are instructed to inspire slightly more deeply than normal, to hold their breath briefly, and then to exhale with the help of abdominal muscles through the device to below their functional residual capacity level but not all the way to residual volume.sup/supsub/subsup/sup