Removal selectivity of Prometheus: a new extracorporeal liver support device

World Journal of Gastroenterology : WJG
Kinan RifaiDanilo Fliser

Abstract

To evaluate whether treatment with the Prometheus reg system significantly affects cytokines, coagulation factors and other plasma proteins. We studied nine patients with acute-on-chronic liver failure and accompanying renal failure. Prometheus reg therapy was performed on 2 consecutive days for up to 6 h in all patients. Several biochemical parameters and blood counts were assessed at regular time points during Prometheus reg treatment. We observed a significant decrease of both protein-bound (e.g. bile acids) and water-soluble (e.g. ammonia) substances after Prometheus reg therapy. Even though leukocytes increased during treatment (P<0.01), we found no significant changes of C-reactive protein, interleukin-6, and tumor necrosis factor-alpha plasma levels (all P>0.5). Further, antithrombin 3, factor II and factor V plasma levels did not decrease during Prometheus reg therapy (all P>0.5), and the INR remained unchanged (P=0.4). Plasma levels of total protein, albumin, and fibrinogen were also not altered during Prometheus reg treatment (all P>0.5). Finally, platelet count did not change significantly during therapy (P=0.6). Despite significant removal of protein-bound and water-soluble substances, Prometheus reg therapy did not...Continue Reading

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