(CNN)Medics who treated the 12 boys and their soccer coach rescued from a cave in Thailand last year credit the drug ketamine with playing a key role in the daring and dangerous mission to extract them.
According to details of the rescue released in a medical journal Thursday, the boys were given unspecified doses of ketamine, also known as party drug Special K, by the rescue divers as they were taken out of Tham Luang cave.
Reports at the time had suggested that the children, who had been trapped for two weeks, were sedated during the operation, but officials gave few details.
“We had to use the means that could keep the children not to be panicky while we were carrying them out,” Thai Navy SEAL commander Rear Adm. Arpakorn Yookongkaew told CNN shortly after the rescue. “Most importantly, they are alive and safe.”
In a joint letter to the New England Journal of Medicine, three Thai medics and an Australian anesthetist who was involved in the rescue said the boys also wore full-face masks supplying oxygen and poorly fitting wetsuits.
They detailed the care the boys received in a field hospital immediately after they left the cave, giving a sense of the perilous nature of the rescue mission.
The first four boys were given sunglasses to protect their eyes because they had not been exposed to the sun for more than two weeks, and their heads and necks immobilized in case of spinal injury during the journey through the narrow channels in the cave. Finally, the patients were wrapped in blankets to ward off hypothermia.
The letter said the second boy to leave the cave had a body temperature of 35 degrees Celsius (95 Fahrenheit) when he came out and developed hypothermia on his way to the hospital. Hypothermia can cause damage to vital organs, including the heart and kidneys, and the nervous system.
The medics said ketamine was a good choice to give to the boys, given the risk of hypothermia, as ketamine impairs shivering and is associated with smaller drops in core body temperature.
By Katie Hunt, CNN