Preoperative Evaluation and Questions: What is the indication for surgery? (Aneurysm, AVM, SAH, Tumor, Chiari) Pre-op Neurologic condition? Any deficits? Need for Neuromonitoring? Hunt-Hess Grade for Aneurysm? (I-V) Risk: Mortality is based on Hunt-Hess grade: I =2%, II =5%, III =15-20%, IV =30-40%, V =50-80%. Morbidity: Hydrocephalus 15-20%, Neurogenic pulmonary edema (most common cause of […]