New York, USA . Medical professors at the universities of Arizona and Maryland in the United States are causing a stir in the scientific community worldwide with a radical technique for resuscitating clinically dead people. After successful animal testing, they were allowed to test the “suspension” of death in humans.
The procedure developed by Samuel Tisherman of Maryland is based on the idea that low temperatures keep the body alive longer – about an hour or two. It works as follows: the blood is withdrawn and in its place is placed a saline solution that helps to lower the temperature of the body to something like 10 to 15 degrees Celsius.
When the problem in the patient’s body is resolved, the blood is pumped again, slowly reheating the system. When the blood temperature reaches 30 degrees, the heart beats again.
According to a report published by the BBC network, in experience with pigs, about 90% of them recovered when blood was pumped back. Each animal spent more than an hour in the limbo.
“When your body is at a temperature of 10 degrees without brain activity, heart rate and blood – it’s a consensus that you’re dead,” Professor Peter Rhee of the University of Arizona told the BBC. “But we still get you back.”
Rhee joined Tisherman to prove that it is possible to keep the body in suspended condition for hours. They admit that the procedure is quite radical, but they believe that, given the good results with pigs, which have had very low side effects or damage to the brains, the technique has everything to be successful also in humans.
The challenge of getting permission to test on humans has been huge so far. But finally Tisherman and Rhee were given permission to test their technique with shooting victims in Pittsburgh. They want to use patients whose hearts have stopped beating and who would no longer be able to survive by conventional techniques.
“When people think about it, they think of space travelers being frozen and awake on Jupiter, or Star Wars character Han Solo. That does not help, because it’s important that they know it’s not science fiction, “he told the BBC.
According to the report, efforts to bring people back from what is believed to be death have been around for decades. Tisherman began his studies with Peter Safar, who in the 1960s created the pioneering technique of cardiorespiratory resuscitation. With a heart massage, it is possible to keep the heart artificially active for a while.
“We were always bred to believe that death is an absolute moment, and that when we die there is no turning back,” says Sam Parnia of State University of New York.
“With the basic discovery of cardiorespiratory resuscitation we come to understand that the body’s cells take hours to achieve an irreversible death. Even after you’ve turned a corpse, there’s still rescue. “
Chance for injury victims
New York, USA “It’s one of the most amazing things to watch for: when the heart starts to beat again,” says Professor Peter Rhee of the University of Arizona, one of those responsible for the “suspension” of death.
He said that after the operation on animals, several tests were done to assess if there was brain damage. Apparently no pig presented problems.
One of the problems to be circumvented is to see how patients adapt with the blood of another person. Pigs have received their own frozen blood, but in the case of humans it will be necessary to use stock of the blood bank.
If it works out, doctors believe that the technique could be applied not only to victims of injuries, such as shots and stab wounds, but in people with heart attack.