Image caption, Hayley with parents Gareth and Emma By Katie Walderman BBC North West An eight-year-old girl from Cheshire has become the first child in the world to have pioneering brain surgery aimed at easing her dystonic cerebral palsy. Dystonia is a lifelong neurological condition which can cause uncontrolled and painful muscle cramps and spasms. Surgeons at Alder Hey Children’s Hospital in Liverpool performed a new form of advanced deep,
from the BBC