ipsilateral MCA infarct after Acom clipping.- EC-ICA bypass for cav ICA- with monocular blindness.- Visal loss in vascular cases.- AVM surgery - rupture; intraOP venous bleed.- AVM rupture.- Vasospasm after AVM resection.- Delayed Complication after SRS for AVM.- Cranipharyngioma surgery; vasospasm postop.- ICA blow out after CEA.- post craniotomy meningitis and SDR.- Complications in CPA surgery.- Carotid complications in SKBS.- CSF leak after surgery.- CSF leak after VS.- tentorial notch meningioma.- Vnous comp./DVT/PE in parasag mening surg.- pit surg compl impervous event = ICH.- how to close dural defect in SKBS.- key hole surgery/endoscopy.- Compl due to lack of anatomy - pick one case!.- Awake vs asleep in SMA.- Aneurysm surgery; avoid recurrences.- spondylolisthesis - failure of device/ facet violations.- Second surgery in glioma resection.- wounded glioma syndrome.- Fluorescence guided resections.- Pial laceration from dural suture