This chapter will cover the two main types of extracorporeal device for temporary liver support based on adsorbents and dialysis plus additional biological cell module in the bioartificial devices. The nature of ‘plasma toxemia’ in acute liver failure and the rationale for temporary liver support will also be discussed, along with the results of controlled clinical trials of the current devices MARS™ and Prometheus™ in acute liver failure and acute-on-chronic liver failure. The chapter concludes with a look at the implications of reduced albumin binding capacity for toxins in advanced liver disease in the context of temporary liver support.
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