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Oxygen saturation difference between radial and femoral samples with antegrade vs. retrograde cannulation during ECMO.
| Radial | Femoral | p Value | ||
|---|---|---|---|---|
| Retrograde | Group 1, | 97% | 99% | NS |
| N = 9 | ||||
| N = 5, | 73% | 99% | < .001 | |
| severe respiratory failuresubset | ||||
| Antegrade | Group 2, | 99% | 99% | NS |
| N = 4 | ||||
| Group 3, | 99% | 99% | NS | |
| N = 2 |
ECMO, extracorporeal membrane oxygenation; Group 1, femoral cannulation; Group 2, axillary artery cannulation; Group 3, central (aortic) cannulation; NS, nonsignificant.
