Experimental use of pig liver to filter blood externally offers hope for patients

Surgeons at University of Pennsylvania attached modified organ from pig to brain-dead human body

Surgeons externally attached a pig liver to a brain-dead human body and watched it successfully filter blood, a step toward eventually trying the technique in patients with liver failure.

The University of Pennsylvania announced the novel experiment on Thursday, a different spin on animal-to-human organ transplants. In this case, the pig liver was used outside the donated body, not inside - a way to create a bridge" to support failing livers by doing the organ's blood-cleansing work externally, much like dialysis for failing kidneys.