This trial at the Zheijang University Hospital seeks to investigate whether blood stem cells can aid recovery following stroke. The trial has designed to compare the neurological recovery in two groups of patients that have suffered a stroke (ischaemic stroke also referred to as cardiovascular accident). Participants will be randomly divided into a control group where they will only receive conventional medical therapy; or a ‘treatment’ group where they will receive blood stem cells (haematopoietic stem cells) as well as conventional medical therapy. The blood stem cells will be obtained from the patient’s blood following an injection of a drug (G-CSF) that releases stem cells from the bone marrow into the circulating blood.  The stem cells will then be transplanted directly into the damaged area of the brain via the cerebral artery. The trial commenced in January 2012.