>> yeah. it's relatively rare thing but at the time that miles got struck with this case it caused this damage essentially to the muscle underneath his skin. the muscle in the artery the veins, nerves wrapped up in a tight layer of tissue known as fascia. so the response is it swells to the injury but it had nowhere to swell so it starts to sort of die and push on the arteries around it cutting off the blood flow and eventually when that muscle dies it releases toxins into the rest of the blood and that could potentially be a life-threatening situation. the goal is and this is what i think they were thinking at the beginning is let's open up that compartment around the muscle give it room to swell and maybe that could curtail the damage. problem was, by the time miles was in the hospital it was too far gone. there was too much muscle that already died. >> you had never heard of anything like this had you? >> no anderson. when i finally got to the