[jack9]

You don't want to do that. Pig hearts are notoriously less durable (soft tissue tends to fail quickly, like in a fraction of a decade), so there's not a lot of data on the longevity of the circulatory stability of porcine hearts. I wouldn't ever get a porcine or cadaverous tissue transplant - as someone who pays close attention and has been living with an artificial valve for decades. (Human-) Cadaverous scaffolding, sounds ok on the surface. Let's see how much of it and specifically what parts are left intact after the growth process.

[DannoHung]

Yeah, but if organ replacement becomes something we can routinely do to extend lifespans, then eventually you run out of cadavers.

That's probably a bit far-flung in terms of thinking though.