Sistemas de soporte hepático extracorpóreo

Cadena, Fredy Ariza; Serna, Luis Felipe Carmona; Quintero C., Iván Fernando; Caicedo, Luis Armando; Perdomo, Carlos A. Vidal; González, Luis Fernando

doi:10.5554/rca.v39i4.133

Información del artículo

Resumen

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Estadísticas

RESUMEN

Introducción.

Los sistemas de soporte hepático extracorpóreo (SHE) surgen como una alternativa al trasplante hepático (TH), dado el incremento en la incidencia de falla hepática aguda (FHA), falla hepática crónica agudizada (FHCA), así como las restricciones en la oferta de órganos.

Objetivo.

Revisión de la literatura de los sistemas de soporte hepático extracorporeo.

Metodología.

Búsqueda de la literatura publicada entre julio de 1990 y noviembre de 2010 en las principales bases de datos médicas que incluyeron MEDLINE, SciELO y EMBASE, de artículos que analizaran tecnologías relacionadas con sistemas de soporte hepático en cuanto a sus especificaciones técnicas, sus usos y la evidencia respecto a su efectividad en pacientes con algún tipo de falla hepática que requirieran soporte.

Resultados.

Estos sistemas pueden dividirse en artificiales (hemofiltración, sistema MARS) y bioartificiales (como el Hepatassist™). Su fundamento consiste en reemplazar los procesos de destoxificación relacionados específicamente con el sistema de bilirrubinas, la eliminación de aminoácidos aromáticos, agentes inflamatorios y el manejo de los productos de degradación del sistema de la coagulación. Los recientes avances en bioingeniería y biogenética han hecho que estas tecnologías se acerquen cada vez más a una forma ideal, permitiendo que sean utilizados con relativo éxito en humanos. Los SHE, en su gran mayoría en desarrollo, pretenden no solo actuar como puente al TH, sino que, en casos puntuales, pueden llegar a ser la piedra angular del tratamiento mientras la FHA logra resolverse.

Palabras clave::

Insuficiencia hepática

fallo hepático agudo

hígado artificial

fallo hepático. (Fuente: DeCS, BIREME).

SUMMARY

Background.

Extracorporeal liver support systems (ELS) have emerged as an alternative to liver transplant (LT), given the growing incidence of acute liver failure (ALF), acute-on-chronic liver failure (ACLF) and the limited organ supply.

Objective.

Review of literature about Extracorporeal Liver Support Systems.

Methodology.

A literature search was conducted on the main medical databases including MEDLINE, SciELO and EMBASE for papers published between July 1990 and November 2010 looking at technologies associated with liver support systems, their technical specifications, their use, and evidence regarding their effectiveness in patients with some forms of liver failure requiring support.

Results.

These systems may be divided into artificial (hemofiltration, MARS) and bioartificial (such as the Hepatassist™). They work by replacing detoxification processes associated specifically with bilirubins, aromatic aminoacids, and inflammatory agents, and the elimination of breakdown products of coagulation. Recent advances in bioengineering and biogenetics have brought these technologies closer to the ideal, enabling their use in humans with a relative degree of success. ELS systems, most of them still under development, are designed not only to act as a bridge for LT but may also become the cornerstone of treatment in specific cases while the ALF resolves.

Keywords:

Hepatic insufficiency

liver

artificial

liver failure

acute. (Source: MeSH, NLM).

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