How long does the heart stay alive after death?

Answer 1

Currently a heart can be transplanted only within about 6 hours of removal from a living donor.

The muscle cells can retain viability for about 12 to 24 hours after death or removal, but some critical cells may not respond after about 6 hours, even when well oxygenated.

If a patient dies and there is no life support, practically all of the heart cells die within an hour from lack of oxygen and accumulation of metabolic waste.

Answer 2

the heart can survive being outside the body for a maxium of 4 to six hours,this is only when its put it a ringer solution, which contains pottasium, salts and sodium.

Answer 3

the heart can survives 4-5 hours out of the body