Prior antiplatelet therapy and haematoma expansion after primary intracerebral haemorrhage: an individual patient-level analysis of CLEAR III, MISTIE III and VISTA-ICH.

In a large heterogeneous cohort of patients with ICH, prior APT was not associated with haematoma expansion or functional outcomes after ICH, regardless of haematoma location. APT was associated with admission haematoma volumes in lobar ICH.