Table 2.

Lung mechanics before and after tracheostomy

	Pre-tracheostomy	Post-tracheostomy	P value
Mean airway pressure cm H2O	3.49 ± 1.22	3.24 ± 1.23	0.060
Peak airway pressure cm H2O	29.90 ± 3.21	24.30 ± 1.83	0.001
Plateau airway pressure cm H2O	19.05 ± 4.16	18.40 ± 3.10	0.800
Dynamic compliance ml/cm H2O	20.90 ± 2.78	27.32 ± 3.36	0.001
Static compliance ml/cm H2O	38.30 ± 7.04	40.32 ± 6.98	0.100
PaO2 mmHg	83.09 ± 5.99	90.84 ± 5.61	0.001
PaC2 mmHg	31.82 ± 2.40	32.36 ± 2.00	0.500

Data are presented as mean ± SD.