Warning signs often occur hours or days before a stroke -- Mayor 330 (7491): 556 -- BMJ

Warning signs often occur hours or days before a stroke -- Mayor 330 (7491): 556 -- BMJ

Nearly one in eight patients who have an ischaemic stroke have a transient ischaemic attack (TIA) at some point in the previous seven days, according to a study published this week, indicating the need to treat TIA as a medical emergency to improve the prevention of subsequent stroke.