Table 3 . Blood gas data in the inflow and outflow of the extracorporeal CO 2 removal (ECCO 2 R) circuits in the saline, NaHCO 3 , and trometamol groups a .
a Values are presented as mean ± standard deviation, with range in brackets.
*significantly different in comparison with Saline, p < 0.05;
†significantly different in comparison with NaHCO3 , p < 0.05
|
Parameters |
Saline (n = 5) |
NaHCO 3 (n = 4) |
Trometamol (n = 5) |
p value |
|
Outflow blood |
||||
|
pH |
7.221 ± 0.029 (7.176−7.245) |
7.494 ± 0.024 * (7.461−7.515) |
7.449 ± 0.026 * (7.401−7.469) |
< 0.0001 |
|
PaCO 2 (mmHg) |
52.9 ± 4.9 (48.0−59.8) |
55.8 ± 2.9 (53.0−59.3) |
49.9 ± 2.8 (47.0−54.4) |
0.1046 |
|
PaO 2 (mmHg) |
38.7 ± 8.7 (30.1−49.4) |
35.9 ± 2.1 (34.2−38.8) |
35.1 ± 5.5 (30.0−43.8) |
0.6607 |
|
HCO 3 − (mEq/L) |
20.9 ± 2.3 (19.3−25.0) |
42.5 ± 1.0 * (41.6−43.4) |
34.1 ± 2.9 * † (30.2−38.3) |
< 0.0001 |
|
SO 2 (%) |
54.2 ± 13.3 (40.0−69.6) |
72.6 ± 4.0 * (68.2−77.1) |
70.2 ± 2.8 (61.8−81.5) |
0.0262 |
|
Inflow blood |
||||
|
pH |
7.454 ± 0.101 (7.305−7.555) |
7.676 ± 0.078 * (7.605−7.748) |
7.596 ± 2.3 * (7.571−7.630) |
0.0031 |
|
PaCO 2 (mmHg) |
24.4 ± 5.3 (17.8−31.7) |
33.8 ± 6.9 (27.7−40.3) |
29.7 ± 4.1 (22.6−32.8) |
0.0691 |
|
PaO 2 (mmHg) |
623 ± 44 (575−688) |
570 ± 51 (499−616) |
588 ± 19 (559−604) |
0.1569 |
|
HCO 3 − (mEq/L) |
16.6 ± 1.5 (15.3−19.1) |
39.8 ± 0.5 * (39.1−40.4) |
28.9 ± 2.9 * † (24.1−31.9) |
< 0.0001 |