@aigul29: A neurosurgeon who specializes in aneurysms is your best friend and the one who will give you the correct answer to the question you are asking. I've had both an aneurysm and a meningioma taking up real estate in my brain. At the teaching university/hospital I go to one neurosurgeon who specializes in aneurysms did my coiling procedure, and a different neurosurgeon who specializes in meningiomas did that surgery. But while waiting for my aneurysm repair I was advised to not hang upside down and my keep blood pressure at 130 or below.