High-Frequency Oscillatory Ventilation Combined with Volume Guarantee in a Neonatal Animal Model of Respiratory Distress Syndrome

Table 2

Physiological variables at different volumes guarantee before and after surfactant depletion by BAL.

VThf/kg	pH	PaO2 (mmHg)	PaCO2 (mmHg)	DCO2 (mL^2/sec)	ΔPhf (cm H2O)
2 mL/kg	7.16±0.064	78±7	69±11	247±71	24±6
2.5 mL/kg	7.22±0.064	99±11^∗	59±12^∗	392±109^∗	36±8^∗
3 mL/kg	7.300±0.074^∗,†	107±11^∗	51±8^∗	569±164^∗,†	47±12^∗
BAL	NA	NA	NA	NA	NA
3 mL/kg	7.24±0.079	83±14^†,‡	54±10^∗	584±141^∗,†	50±7^∗

NA: not applicable.
Data as mean ± SD.
^∗𝑃<0.05 (ANOVA) as compared to 2 mL/kg.
^†𝑃<0.05 (ANOVA) as compared to 2.5 mL/kg.
^‡𝑃<0.05 (ANOVA) as compared to 3 mL/kg before BAL.