Endovascular coil embolization is a procedure to treat an aneurysm. It uses a metal coil to prevent bleeding or a rupture. It may also fix a ruptured aneurysm.
This may also be called endovascular coil embolization.
Endovascular coil embolization prevents a brain aneurysm from causing more damage. It will not fix damaged areas of the brain. But, it can improve quality of life by stopping bleeding.
An aneurysm is a weakened blood vessel in the brain that collects blood. The bulging, blood-filled pocket can put pressure on parts of the brain, pressing on nearby nerves. This can cause symptoms or cause the blood vessel to rupture (hemorrhage).
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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 care team may meet with you to talk about:
The doctor will give local anesthesia—the area will be numbed. You may have medicine to help you relax.
An incision will be made near the groin or upper thigh. A thin, hollow tube will be inserted into the artery wall. The tube is used to guide a wire. The wire goes through the artery to the brain. X-rays will be used to direct the tube to the aneurysm. A dye is placed to outline the aneurysm. A smaller tube with platinum coils will be moved to the site. The coils fill and block the aneurysm.
The catheter will be taken out. The incision will be closed and bandaged.
1 to 2 hours, maybe more
There may be some pain and discomfort after the procedure. It can be managed with medicine.
Normally, the length of stay is 1 to 2 days. If there are problems you may need to stay longer.
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:
Recovery may take 3 to 6 weeks. Some activities may be limited during this time. You may also need physical therapy.
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: http://www.aans.org/en/Patients/Neurosurgical-Conditions-and-Treatments/Cerebral-Aneurysm. 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: http://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