Microvascular occlusion uses a metal coil to fill the aneurysm. The metal coil prevents 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 from the procedure are rare, but all procedures have some risk. Your doctor will review possible problems such as:
Your chances of problems are higher for:
If there is no emergency, you may have:
Leading up to the procedure:
Local anesthesia is usually be used. It will block pain. A sedative may be used to help you relax.
A cut is made near the groin or upper thigh. A thin, hollow tube or sheath is inserted into the artery wall. A catheter is used to guide a wire. It goes through the artery to the brain. X-rays will direct the catheter to the aneurysm. A dye is placed to outline the aneurysm. A smaller catheter with a platinum coils are advanced to the spot. The coils fill and block the aneurysm.
The catheter is removed and the wound is closed.
You will need to lie still for at least 6-8 hours. Your blood pressure and other vital signs will be watched.
1-2 hours, maybe more
Anesthesia will prevent pain during surgery. Pain and discomfort after the procedure can be managed with medications.
Normally, the length of stay is 1-2 days. You will need to stay longer if you have any problems.
During your stay, the healthcare staff will take steps to lower your chances of infection such as:
There are also steps you can take to lower your chance of infection such as:
When you get home, you may have to adjust your activity level while you recover. This may take 3-6 weeks. To help with healing, you may need:
Call your doctor if any of these occur:
Call for emergency medical services right away for:
If you think you have an emergency, call for emergency medical services 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 July 18, 2018.
Subarachnoid hemorrhage. EBSCO DynaMed Plus website. Available at:http://www.dynamed.com/topics/dmp~AN~T116453/Subarachnoid-hemorrhage. Updated June 6, 2018. Accessed July 18, 2018.
Treatment of brain aneurysm. The Aneurysm and AVM Foundation website. Available at: http://www.taafonline.org/conditions/aneurysm/treatment. Accessed July 18, 2018.
Williams LN, Brown RD Jr. Management of unruptured aneurysms. Neurol Clin Pract. 2013;3(2):99-108.
Last reviewed June 2018 by EBSCO Medical Review Board Michael Fucci, DO, FACC Last Updated: 7/18/2018