Subarachnoid Hemorrhage

Subarachnoid hemorrhage is a neurosurgical emergency with a high mortality rate. Rapid identification of SAH and evaluating for and treating a ruptured aneurysm can be life-saving. This chapter will review the epidemiology and risk factors for aneurysm formation and SAH, anatomy and pathophysiology, and fundamental concepts behind treatment strategies. A complete and comprehensive review of this topic is covered in dedicated neurosurgical and neuro ICU texts.