Effect of individualized PEEP titration guided by intratidal compliance profile analysis on regional ventilation assessed by electrical impedance tomography – a randomized controlled trial

Table 4 Measurements of regional ventilation

Measurements of regional ventilation	Control (n = 23)	Intervention (n = 25)	p-value
Gain ventral [%]	18.8 (15.5)	29.3 (17.6)	0.056
Loss ventral [%]	41.0 (16.3)	29.7 (16.8)	0.039
Gain dorsal [%]	14.3 (11.9)	24.6 (13.0)	0.013
Loss dorsal [%]	25.9 (13.8)	16.4 (12.7)	0.028
ΔV_T,v [%]	−22.2 (31.1)	−0.4 (34.2)	0.044
ΔV_T,d [%]	−11.6 (24.8)	8.25 (25.4)	0.017
TV_v [%]	63.9 (13.1)	60.2 (15.1)	0.368
TV_d [%]	36.1 (13.1)	39.8 (15.1)	0.368

Differences between the two groups were assessed with Mann-Whitney U tests. ΔV_T,v, change in tidal volume (difference between gain and loss) for the ventral lung area; ΔV_T,d, change in tidal volume (difference between gain and loss) for the dorsal lung area; TV_v, percentage of tidal volume in ventral lung areas; TV_d, percentage of tidal volume in dorsal lung areas. Data are expressed as mean (SD)

ISSN: 1471-2253