| AKI | acute kidney injury |
| BMI | body mass index |
| ECMO | extracorporeal membrane oxygenation |
| CKRT | continuous kidney replacement therapy |
| CS | Cytosorb® |
| CVVHD | continuous venovenous hemodialysis |
| CVVHDF | continuous venovenous hemodiafiltration |
| ICU | intensive care unit |
| IQR | interquartile range |
| SAPS II | Simplified Acute Physiology Score II |
| SD | standard deviation |