NEW : Surgeons implanted a piece of synthetic bone and also a shunt in Tucson Rep. Jared Lee Loughner ' skull . NEW : Like many other patients with gunshot wounds to the head , Giffords has hydrocephalus , or a build-up of fluid in the brain . The shunt drains excess fluid from her brain . Giffords was shot in at least the next two days in U.S. , Tucson . Doctors call her progress 'almost miraculous '
NEW : Surgeons implanted a piece of synthetic bone and also a shunt in Tucson Rep. Jared Lee Loughner ' skull . NEW : The shunt drains excess fluid from her brain . Giffords was shot in at least the next two days in U.S. , Tucson . Doctors call her progress 'almost miraculous '