Document Classification

Section Type: RESULTS

Text: At baseline pressure-support ventilation, the insertion of both heat and moisture exchangers induced in all patients a significant increase in the following parameters : minute ventilation (12. 4 + / - 3. 2 to 15. 0 + / - 2. 6 L/min for group 1, and 11. 8 + / - 3. 6 to 14. 2 + / - 3. 5 L/min for group 2) ; static intrinsic positive end-expiratory pressure (2. 9 + / - 2. 0 to 5. 1 + / - 3. 2 cm H2O for group 1, and 2. 9 + / - 1. 7 to 5. 5 + / - 3. 0 cm H2O for group 2) ; ventilatory drive, expressed as P41 (2. 7 + / - 2. 0 to 5. 2 + / - 4. 0 cm H2O for group 1, and 3. 3 + / - 2. 0 to 5. 3 + / - 3. 0 cm H2O for group 2) ; and work of breathing, expressed as either power (8. 8 + / - 9. 4 to 14. 5 + / - 10. 3 joule / min for group 1, and 10. 5 + / - 7. 4 to 16. 6 + / - 11. 0 joule/min for group 2) or work per liter of ventilation (0. 6 + / - 0. 6 to 1. 0 + / - 0. 7 joule/L for group 1, and 0. 8 + / - 0. 4 to 1. 1 + / - 0. 5 joule/L.