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About Subarachnoid Hemorrhage

A subarachnoid hemorrhage is bleeding between the arachnoid mater and the pia mater. These are the tissues that cover the brain and its blood vessels and contain cerebrospinal fluid. Treatment for subarachnoid hemorrhage varies by case—and particularly according to the cause of the hemorrhage. Surgical options when an aneurysm is present include clipping, coiling, flow diversion, embolization or resection. Surgical treatment for a hemorrhage caused by arteriovenous malformation (AVM) may include embolization, resection or radiosurgery.

A subarachnoid hemorrhage is a rare form of stroke, accounting for about 3 percent of cases. It is a medical emergency, and the goal of treatment is to secure the bleeding site as soon as possible. Ruptured aneurysms tend to bleed again within hours or a few days after initial bleeding. Efficient evaluation and treatment decisions are best made by a specialized, experienced stroke team at a comprehensive stroke center like the one at Columbia University Medical Center/NewYork-Presbyterian Hospital.

patient journey

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