Respiratory compliance but not gas exchange correlates with changes in lung aeration after a recruitment maneuver: an experimental study in pigs with saline lavage lung injury

Table 3 Respiratory mechanics parameters

	Pre-recruitment maneuver	Post-recruitment maneuver	P-value	fractional change(%)
PIP (cmH₂O)	36.6 ± 4	31.1 ± 3.7	0.012	-12.5 ± 6
P_PLAT (cmH₂O)	30.7 ± 3.1	27.2 ± 2.8	0.028	-13.8 ± 7
C_RS (ml cmH₂O^-1)	13.5 ± 2.2	17.9 ± 2.6	0.028	34.5 ± 17
Pmci,_INF (cmH₂O)	22.4 ± 11.9	32.3 ± 5.4	0.046	113 ± 192
Pmcd,_INF (cmH₂O)	43.3 ± 9.5	56.6 ± 15.5	0.075	-
C_INF (ml cmH₂O^-1)	24.4 ± 14.7	42.0 ± 14.5	0.028	101.8 ± 92
Pmci,_DEF (cmH₂O)	9.4 ± 2.2	9.9 ± 1.1	0.463	-
Pmcd,_DEF (cmH₂O)	19.9 ± 2.0	21.4 ± 1.9	0.046	7.0 ± 0.7
V_REC (ml)	183 ± 135	256 ± 145	0.028	66.5 ± 47

Data are reported as mean ± SD. C_INF, maximum inflation compliance; PIP, peak inspiratory pressure; P_PLAT, plateau pressure; C_RS, static respiratory system compliance; Pmci,_DEF, point of maximum compliance increase of deflation curve; Pmcd,_DEF, point of maximum compliance decrease of deflation curve; Pmcd,_INF, point of maximum compliance decrease of inflation curve; Pmci,_INF, point of maximum compliance increase of inflation curve; V_REC, recruitable volume at 10 cmH₂O.

ISSN: 1364-8535