and, you know, i didn't like what i read. >> acute compartment syndrome occurs when the pressure increases inside an area of the body that houses muscles, veins, arteries and nerves. it's usually due to bleeding and swelling. because that compartment is covered by a tough unforgiving layer of connective tissue known as fascia, when the swelling gets worse, the muscle has nowhere to go. everything gets squeezed and eventually the blood flow to the arm is disrupted. this is critical. without a steady flow of oxygen and nutrients to the arm, nerve and muscle cells begin to die. if left untreated, it can be fatal. as the muscle dies, it releases toxins that can cause kidney failure. miles' arm, 48 hours after the accident, was dying. that's when he finally went to the hospital. and what did your arm look like at this point? >> it was kind of, you know, swollen and yellowish.