How to Say It: my-CROW-vas-q-lar clip-ping
Microvascular clipping is surgery to cut off blood flow to a brain aneurysm. This is done to try to stop bleeding and rupture. This is an open surgery.
This surgery is to prevent a brain aneurysm from causing more harm. It will not fix damaged areas of the brain. But, it can improve quality of life by stopping bleeding.
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Problems are rare, but all procedures have some risk. Your doctor will talk about possible problems such as:
Things that may raise the risk of problems are:
The surgical team may meet with you to talk about:
The doctor will give you general anesthesia. You will be asleep.
Hair on the head will be cut at the site.
A small section of the skull will be removed to get to the brain. Imaging tools are used to find the blood vessel. The aneurysm will be removed. A clip will be placed to clamp the artery. The clip will stay in place to prevent bleeding and rupture in the future.
The skull will be returned and secured with plates and screws. The scalp will be stitched back into place. A bandage will be placed over the area.
3 to 5 hours or longer
Pain is common the first few weeks. Medicine and home care will help.
The usual length of stay is 4 to 6 days. If there are any problems, you may need to stay longer.
Right after the procedure, the staff may give you pain medicine.
During your stay, the healthcare staff will take steps to lower your risk of infection such as:
There are also steps you can take to lower your risk of infection such as:
It may take about 3 to 6 weeks to recover. Physical activity may be limited during this time. Physical therapy may be needed.
Call your doctor if you have:
Call for medical help right away for:
If you think you have an emergency, call for medical help right away.
Brain Aneurysm Foundation
National Institute of Neurological Disorders and Stroke
Brain Injury Canada
Heart and Stroke Foundation
Cerebral aneurysm. American Association of Neurological Surgeons website. Available at:
...(Click grey area to select URL)
Accessed September 3, 2021.
Cerebral aneurysms fact sheet. National Institute of Neurological Disorders and Stroke website. Available at: https://www.ninds.nih.gov/Disorders/Patient-Caregiver-Education/Fact-Sheets/Cerebral-Aneurysms-Fact-Sheet. Accessed September 3, 2021.
Rinkel GJE. Management of patients with unruptured intracranial aneurysms. Curr Opin Neurol. 2019;32(1):49-53.
Subarachnoid hemorrhage. EBSCO DynaMed website. Available at: https://www.dynamed.com/condition/subarachnoid-hemorrhage. Accessed September 3, 2021.
Treatment of brain aneurysm. The Aneurysm and AVM Foundation website. Available at: https://www.taafonline.org/conditions/aneurysm/treatment . Accessed September 3, 2021.
Last reviewed July 2021 by
EBSCO Medical Review Board
Nicole Meregian, PA
Last Updated: 9/3/2021