In trauma situations, cross-clamping the aorta may be performed in the emergency room, sometimes without anesthesia for unresponsive patients with critical injuries like gunshot or stab wounds to the aorta.

“so so you know this was something we had to do all the time right in trauma is is is and sometimes you would have to do this in the operating room uh pardon me in the emergency room like a guy would come in and he'd have uh you know a gunshot wound or a stab wound to his aorta and you have to literally open his chest without anesthetizing him because of course he's already not responsive at this point and put hand in move his lungs out of the way get all the blood out of the way and get a clamp across the god”