Coagulopathies cause a predisposition to thrombosis and therefore an increased risk of
ischaemic stroke. Although the frequency of coagulopathies in patients with stroke is low, the
yield for diagnosing coagulopathies is typically greatest in young patients, those with family
history of thrombosis, those with repeated unexplained strokes and patients with no vascular
risk factors, as Omer H T Ali with Drs Bella Richard and Pradeep Khanna explain.