Gas Mask and Chronic Obstructive Pulmonary Disease (COPD): New Understanding on the Respiratory Index Impact?

We have been evaluating breathing patterns, index of respiratory efforts and blood gases in all randomized conditions. Airway pressure, inspiratory and expiratory flows have been measured. An esophageal catheter has been introduced at the beginning of the study to measure esophageal pressure (Peso) and calculate indexes of respiratory effort (PTPeso, WOB). SpO2 has been continuously measured and capillary blood bases were drawn at the end of each condition. Comfort has also been assessed. FreeO2 System has been used and pre-programmed in accordance with the patient SpO2 target zone for potential correction of the hypoxemia occurrences. Differences among randomized conditions are one without gas mask as for the baseline and two with gas masks but different canisters.

Differences among randomized conditions are one without gas mask as for the baseline and two with gas masks but different canisters.