Hypercapnic Ventilatory Response in the Weaning of Patients with Prolonged Mechanical Ventilation

Table 2

Respiratory function assessment.

	All; ()	Weaning success; ()	Weaning failure; ()	value
Baseline arterial blood gases
pH	7.47 ± 0.06	7.47 ± 0.07	7.47 ± 006	.917
, mmHg	40.8 ± 8.4	38.9 ± 8.1	44.9 ± 8.0	.059
, mmHg	108.7 ± 30.1	112.2 ± 31.9	101.0 ± 25.6	.336
, mmol/L	29.1 ± 6.4	27.8 ± 5.1	31.9 ± 8.3	.091
/	324.9 ± 97.4	334.4 ± 102.5	304.0 ± 86.3	.422
Respiratory function
RSBI, breath/min/L	122.8 ± 56.2	121.1 ± 61.1	126.7 ± 46.4	.799
Maximal inspiratory pressure, cm H2O	−36.5 ± 13.2	−35.2 ± 11.5	−39.2 ± 16.7	.438
Drive function
, cm H2O/mmHg	0.33 ± 0.21	0.33 ± 0.22	0.34 ± 0.21	.991
/, L/min/mmHg	0.36 ± 0.16	0.40 ± 0.16	0.28 ± 0.12	.036

RSBI: rapid shallow breathing index; denotes statistical significance with .