Bleeding near brain is linked to increased use of anti-clotting drugs, study finds

The risk of subdural haematoma is associated with antithrombotic drug use, particularly a vitamin K antagonist, a large Danish study has found.1

Although use of antithrombotic drugs has long been recognised as a risk factor for subdural haematoma, previous studies were either based exclusively on patients with subdural haematoma and no comparison group or focused exclusively on patients treated with an anticoagulant.

The researchers used a Danish registry to identify 10 010 patients …