This is an amazing story: a South Carolina teen lived for 118 days without a heart, after an initial heart transplant failed:
 She had a heart transplant on July 2 at Miami's Holtz Children's Hospital but the new heart failed to function properly and was quickly removed. 
Two heart pumps made by Thoratec Corp  of Pleasanton, California, were implanted to keep her blood flowing while she fought a host of ailments and recovered her strength. Doctors implanted another heart on Oct. 29.
It's getting hard to tell the science fact from the science fiction...