Effects of different flow patterns and end-inspiratory pause on oxygenation and ventilation in newborn piglets: an experimental study

Table 1 Oxygenation and ventilation parameters

	MODE	Baseline	End	Difference between delta values		Difference between delta values of all modes	Difference between end-values of SF and DF	Difference between end-values of SF and SF_EIP	Difference between end-values of DF and DF_EIP
	MODE	Mean ± SD	Mean ± SD	Mean ± SD	p-value	p-value	p-value	p-value	p-value
PaO ₂	SF _EIP	274 ± 22	283 ± 28	8 ± 22	0,58	0,19	0,77	0,25	0,17
	DF _EIP	275 ± 26	279 ± 23	5 ± 21	0,75
	SF	269 ± 25	276 ± 24	7 ± 18	0,36
	DF	281 ± 22	278 ± 24	−4 ± 17	0,27
PaCO ₂	SF _EIP	39 ± 4	38 ± 5	−1 ± 4	0,54	0,76	0,42	0,16	0,53
	DF _EIP	40 ± 7	39 ± 7	−1 ± 5	0,62
	SF	39 ± 6	42 ± 6	1 ± 5	0,27
	DF	39 ± 6	39 ± 5	0 ± 3	0,74
VDalv/VTalv	SF _EIP	0,20 ± 0,1	0,21 ± 0,1	0,01 ± 0,05	0,46	0,16	0,33	0,59	0,73
	DF _EIP	0,22 ± 0,1	0,20 ± 0,1	−0,05 ± 0,03	0,51
	SF	0,20 ± 0,1	0,19 ± 0,1	−0,01 ± 0,04	0,12
	DF	0,20 ± 0,1	0,21 ± 0,1	0,04 ± 0,02	0,09

Data are presented as mean ± SD. Delta: end – baseline values. SF: square flow, DF: decelerating flow, SF_EIP: square flow with end-inspiratory pause, DF_EIP: decelerating flow with end-inspiratory pause. PaO₂: arterial oxygen tension (mmHg), PaCO₂: arterial carbon dioxide tension (mmHg), VD/VT: alveolar dead space to alveolar VT ratio.
*when significant, P <0,05.

ISSN: 1471-2253