Expiratory resistive loading in patients with severe chronic air-flow limitation. An evaluation of ventilatory mechanics and compensatory responses.

In order to estimate the extent of dynamic compression in patients with COPD who were flow-limited at rest, we measured tidal expiratory flows before and after application of small expiratory resistive loads (ERL). We sought also to evaluate the compensatory strategies available to such patients during ERL by measuring steady-state ventilatory responses… CONTINUE READING