
Dr. Lillian Liao, pediatric trauma medical director at University Hospital in San Antonio, told CNN that her hospital is currently treating three children injured in the Uvalde school shooting.
"They are critical but stable and will be continuing to receive care over the next days to weeks," she said.
"Broadly speaking ... we were treating destructive wounds, and what that means is that there were large areas of tissue missing from the body, and they required emergency surgery because there was significant blood loss," Liao told CNN's John Berman.
Liao blinked back tears as she described receiving the injured children.
She said that her unit had experience treating mass shooting victims from the 2017 Sutherland Springs church shooting, and they were able to prepare quickly for the Uvalde shooting patients.
But she said the hardest part was knowing that many of victims were likely already dead.
"And also from the last experience we realized that when we're dealing with high-velocity firearm injuries, we may not get a whole lot of patients. I think that's what has hit us the most, not of the patients that we did receive and we are honored to treat them, but the patients that we did not receive. I think that that is the most challenging aspect of our job right now," she said, wiping away tears.
But, she added, "our job as the trauma center is to be focused on treating the patients that we did receive, and that's what we're going to do today."
The hospital is also treating the gunman's grandmother, who officials say he shot in the face before fleeing their home and then getting into a crash near the school.
"She's critical but stable as well," Liao said.
Hear trauma surgeon here: