As part of an American experiment to deal with trauma that can lead to death, doctorsPut the patient in a state of suspended animation for the first time。 Samuel tisherman, of the University of Maryland School of medicine, said his team put at least one patient in a state of suspended animation, saying it felt "a little surreal" when it was first done, and he did not say how many survived.
The official name of the technology isEmergency preservation and resuscitation (EPR)In 2005, it was applied to patients with acute trauma such as gunshot or stab wounds and cardiac arrest. The patient's heart stopped beating and lost more than half of his blood. The operation time is usually only a few minutes, and the chance of survival is less than that 5%.EPR replaces the blood with cold saline, quickly cools the patient's body temperature to 10 to 15 °C, and the patient's brain activity stops almost completely, then leaves the cooling system and is sent to the operating room for surgery. Doctors spend two hours dealing with wounds before warming their bodies to recover their heartbeats. Tisherman hopes to announce the full results of the surgery by the end of 2020.