PLAT and arteriovenous hemangioma/malformation: Hunt-Hess (HH), modified Fisher Scale (mFS), subarachnoid hemorrhage (SAH), posterior inferior cerebellar artery (PICA), arteriovenous malformation (AVM), recombinant tissue plasminogen activator (rtPA), delayed cerebral ischemia (DCI), intracerebral hemorrhage (ICH), computed tomography (CT), Lactate Ringer’s (LR).