This sounds like where renal dialysis was in the 70s: really expensive and dangerous and you will probably die anyway. However in patients with acute liver failure (ex: toxin exposure), ELAD might give them enough time to regenerate their liver and obviate the need for a transplant. At a minimum it may help transplant recipients survive longer and be healthier when they undergo surgery.
On a related note, if you haven't talked with your family about your wishes regarding organ transplantation yet, please do so! Just checking that box on your DL isn't enough, because your next of kin is the final decision-maker."
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