The findings show just how important it is for people with
acute ischaemic stroke (in which blood flow to an area of the brain is blocked or reduced) to be identified quickly and treated by specialist staff in order to reduce the subsequent degree of disability.
Among the 50 trials, 30 were primary prevention trials (general populations, smokers and workers exposed to asbestos, patients with oesophageal dysplasia, male physicians, patients with non-melanoma skin cancer, postmenopausal women, patients undergoing chronic haemodialysis, patients with end stage renal disease, ambulatory elderly women with vitamin D insufficiency, patients with chronic renal failure, older people with femoral neck fractures, patients with diabetes mellitus, elderly women with a low serum 25 - hydroxyvitamin D concentration, health professionals, people with a high fasting plasma total homocysteine concentration, or kidney transplant recipients), and 20 were secondary prevention trials (patients with cardiovascular disease, coronary heart disease,
acute myocardial infarction, unstable angina, transient
ischaemic attack,
stroke, angiographically proved coronary atherosclerosis, vascular disease, or aortic valve stenosis).