Doctors are About to Start Human Trials for Suspended Animation

After years of sci-fi-inspired fantasies about the technique, a team of doctors in Pittsburgh are finally ready to start testing out a procedure that involves putting patients in a state of "suspended animation" while they repair their injuries. Put bluntly, they’re going to kill people and bring them back to life.
If you haven’t heard of this method before, prepare to have your mind blown. Often patients with massive trauma like a gunshot or stab wound bleed to death before doctors have the chance to fix the structural injuries.
However, this so-called "emergency preservation" technique buys them extra time, because it quickly cools the body down to temperatures as low as 10-degrees Celsius, stopping almost all cellular activity.
"We are suspending life, but we don’t like to call it suspended animation because it sounds like science fiction," says Samuel Tisherman who’s leading the study in Pittsburgh.
To do so, doctors replace all of the patients’ blood with a cold saline solution. In this state, the patient has no signs of life, no pulse, no brain activity, nothing. He’s clinically dead, until the doctors resuscitate his by pumping blood back into his body and bringing the body temperature back up.
The patient can remain in the state of suspended animation from hours and still be brought back to life.
Suspended animation has never been tested on humans. Dr. Hasam Alam, now at Harvard Medical School, first demonstrated the technique on pigs in 2002. By 2010, Alam said that he was ready to start human trials in Boston, and even though the FDA gave the go ahead a year later, that has yet to happen.