A recruitment maneuver increases oxygenation after intubation of hypoxemic intensive care unit patients: a randomized controlled study

Table 2 Gas exchange at different study times

	Before intubation	30 seconds after intubation	5 minutes after intubation	30 minutes after intubation
pH
Control group (n = 20)	7.27 ± 0.1	7.22 ± 0.1	7.22 ± 0.2	7.27 ± 0.1
RM group (n = 20)	7.36 ± 0.1	7.29 ± 0.1	7.29 ± 0.1	7.30 ± 0.1
PaCO ₂ (mmHg)
Control group (n = 20)	49 ± 12	53 ± 10	52 ± 8	46 ± 6
RM group (n = 20)	44 ± 12	54 ± 15	51 ± 12	51 ± 11
PaO ₂ (mmHg)
Control group (n = 20)	79 (73-87)	89 (78-116)	85 (74-109)	95 (82-125)
RM group (n = 20)	73 (63-92)	71 (56-105)	246 (128-303)*^#	171 (119-241)*^#
SaO ₂ (%)
Control group (n = 20)	94 ± 4	93 ± 4	92 ± 5	96 ± 4
RM group (n = 20)	92 ± 5	90 ± 9	97 ± 3*^#	97 ± 3

All PaO₂ values were sampled at a fraction of inspired oxygen of 1, except before intubation, when oxygen flow delivery was 10 to 15 L/min.
Data are presented as means ± standard deviation. * P < 0.05 compared with the value obtained before intubation. # P < 0.05 for a difference between groups. All data are mean ± standard deviation expect for PaO₂ median (75-25).
PaCO₂: partial pressure of arterial carbon dioxide; PaO₂: partial pressure of arterial oxygen; RM: recruitment manœuvre; SaO₂: arterial oxygen saturation.

ISSN: 1364-8535