Paired analysis of positive inflating pressure (PIP) and tidal volume in subjects at low and normal compliance during the first and second 60 s of combined chest compressions and FMV, and during FMV only
| CPR/FMV | Positive inflating pressure (cm H2O) | Tidal volume(mL/cm H2O) |
|---|---|---|
| Low vs normal compliance (first 60 s) | 1.7±2.2* | −10.8±6.5** |
| Low vs normal compliance (second 60 s) | 0 (IQ 3) | −9±4.8** |
| FMV only | ||
| Low vs normal compliance | 7±5.8** | −12.5±3.6** |
*p=0.0003, **p=0.00005.
CPR, chest compressions; FMV, face mask ventilation.