From: Patient-ventilator asynchronies: may the respiratory mechanics play a role?
Variable | IE >10% | Â | AI >10% | Â | ||
---|---|---|---|---|---|---|
 | Absent ( n = 55) | Present ( n = 14) | P | Absent ( n = 48) | Present ( n = 21) | P |
PS (cmH2O) | 15 (3) | 18 (4.3) | 0.03 | 16 (3) | 16 (4.4) | 0.51 |
PEEPe (cmH2O) | 4 (2 to 4) | 4 (2 to 5) | 0.99 | 4 (2 to 4) | 4 (2 to 5) | 0.72 |
Respiratory rate | 21(8) | 26 (9) | 0.08 | 21 (7) | 24(9) | 0.26 |
VT (ml) | 480 (395 to 633) | 500 (321 to 620) | 0.69 | 497 (405 to 638) | 435 (321 to 610) | 0.15 |
CLdyn (l/cmH2O) | 0.061 (0.04 to 0.10) | 0.035 (0.03 to 0.07) | 0.06 | 0.06 (0.04 to 0.1) | 0.05 (0.03 to 0.11) | 0.39 |
RL (cmH2O/l/s) | 10 (5.6 to 16.4) | 8.3 (5.15 to 16.2) | 0.84 | 10.1 (5.6 to 15.6) | 8.6 (5.6 to 19.7) | 0.83 |
PEEPdyn (cmH2O) | 1.15 (0.6 to 2) | 1 (0.8 to 2.9) | 0.55 | 1.2 (0.6 to 2.2) | 1.05 (0.6 to 2.8) | 0.81 |
PTPdi (cmH2Oxs) | 12 (7 to 18) | 11.8 (6 to 15) | 0.46 | 12 (7.1 to 18.5) | 12 (6 to 17) | 0.78 |
PTPdi/min (cmH2Oxs/min) | 257 (152 to 318) | 247 (167 to 334) | 0.91 | 258 (150 to 326) | 249 (180 to 307) | 1 |
Tolerance | 2 (1 to 2) | 3 (2 to 3) | 0.006 | 2 (1 to 2) | 2 (2 to 3) | 0.007 |