Liver Support Techniques in Acute and Hyperacute Liver Failure.

With the growing prevalence of acute liver failure or acute-on-chronic liver failure, on the one hand, and the limited supply of liver organs for transplantation, on the other hand, it is critical to the design, validate, and implement devices that can provide extracorporeal liver support (ECLS) as the bridge to transplantation or potentially destination therapies. The number of attempts to generate ECLS devices has resulted in several options with various levels of impact on clinical outcomes. The described ECLS tools could be as simple as devices used for kidney replacement therapies (e.g., continuous kidney replacement therapy) to tools that employ albumin (e.g., Prometheus, single-pass albumin dialysis, or molecular adsorbent recirculating system), fresh frozen plasma (e.g., high-volume plasmapheresis), or hepatocytes (e.g., extracorporeal liver assist device with hepatocytes) to support failing liver functions, that is, metabolic or synthetic functions. This chapter describes the current landscape of ECLS devices and their associated evidence-based data.

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