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The liver is an important organ in vertebrates that plays an essential role in metabolism. It is also responsible for storing and redistributing nutrients such as carbohydrates, fats, and vitamins in the body. Additionally, the liver releases bile salts which are critical for digesting food and eliminating toxic metabolites from the body.
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Related Experiment Video

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Artificial liver support: a real step forward.

F Saliba1, D Samuel

  • 1AP‑HP‑ Hôpital Paul Brousse Centre Hépato‑Biliaire, Villejuif, France - faouzi.saliba@pbr.aphp.fr.

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Summary
This summary is machine-generated.

Artificial liver support devices, like MARS®, use albumin dialysis to aid patients with acute liver failure (ALF) and chronic liver disease. While showing promise in improving symptoms and bridging to transplant, further trials are needed for optimal use.

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Area of Science:

  • Hepatology
  • Biomedical Engineering
  • Artificial Organ Development

Background:

  • Experimental artificial liver support devices have been explored since the 1960s for acute liver failure (ALF) and end-stage chronic liver disease.
  • Liver transplantation emerged as a definitive treatment in the 1980s, significantly improving survival.
  • Albumin dialysis, introduced in the 1990s, revolutionized toxin removal by targeting albumin-bound substances.

Purpose of the Study:

  • To review the current status and efficacy of artificial liver support systems, particularly MARS® (Molecular Adsorbent Recirculation System).
  • To evaluate the role of albumin dialysis in managing patients with liver failure.
  • To identify areas for improvement and future research in liver support therapies.

Main Methods:

  • Review of existing literature on artificial liver support devices, including MARS®, Prometheus®, and SPAD®.
  • Analysis of data from uncontrolled and few randomized studies on MARS® efficacy.
  • Focus on albumin dialysis as the primary mechanism for detoxification.

Main Results:

  • MARS® has demonstrated improvements in clinical symptoms (hepatic encephalopathy, pruritus, jaundice) and biological parameters in patients with liver failure.
  • MARS® has shown potential for improved transplant-free survival in some ALF patients, particularly those with paracetamol intoxication.
  • Further studies are required for acute on chronic liver failure (ACLF) and to establish definitive indications and timing for liver support therapies.

Conclusions:

  • Albumin dialysis via systems like MARS® can support liver function and improve patient condition, potentially bridging them to transplantation.
  • Further research, including large randomized trials, is essential to define the precise role of artificial liver support in ALF and ACLF.
  • Early consideration of these devices as an adjunct therapy in specialized liver units is warranted.