Tranexamic acid for aneurysmal subarachnoid hemorrhage.

The article reports that Subarachnoid hemorrhage (SAH) is a deadly cerebrovascular emergency that accounts for approximately 5% of strokes. It most commonly is the result of a ruptured intracranial aneurysm, which releases blood into the subarachnoid space. Rebleeding can occur in up to 20% of SAH cases, with the highest risk in the first 24 h following the initial hemorrhage.