Evaluation of the PaO2/FiO2 ratio after cardiac surgery as a predictor of outcome during hospital stay

BMC Anesthesiology

Table 4 Respiratory data and complications during ICU admission after cardiac surgery

	PaO₂/FIO₂	PaO₂/FIO₂	PaO₂/FIO₂	pvalue
	ratio > 241	ratio 202-241	ratio < 202	pvalue
	(n = 2195)	(n = 257)	(n = 249)
Mechanical ventilation (hours)	35 (101)	59 (136)	125 (200)	*<0.001*
Hours until tracheal extubation	27.5 (74.1)	42.8 (86.9)	70.5 (122.9)	*<0.001*
Maximum PEEP needs	3.4 (1.4)	4.4 (4.7)	5.7 (2.5)	*<0.001*
Pneumonia	0.2	1.2	0.4	*0.046*
Hemothorax	0.2	0	0.4	0.57
Pneumothorax	2.2	3.9	6	*0.001*
Acute Pulmonary Edema	5.4	6.6	15.7	*<0.001*
Tracheostomy	4.1	6.2	17.7	*<0.001*
Tracheal reintubation	2.6	2.3	5.2	*0.003*
Diaphragmatic paresis	0.5	0.8	1.2	0.43
Pleural effusion	6.6	10.9	16.5	*<0.001*

ISSN: 1471-2253