(Endovascular Coil Embolization)
Microvascular occlusion is a procedure to treat an aneurysm. It uses metal coils to stop bleeding or a rupture. It may also fix a ruptured aneurysm.
This may also be called endovascular coil embolization.
Reasons for Procedure
Endovascular coil embolization prevents a brain aneurysm from causing more damage. It will not fix damaged areas of the brain. It can help with 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. The doctor will talk about possible problems such as:
- Problems from anesthesia
- Blood clots
- Damage to other organs or structures
- Seizures, confusion, memory loss
Things that may raise the risk of problems are:
What to Expect
Problems to Look Out For
Call your doctor if you have:
- Fever or chills
- Redness, swelling, excess bleeding, or discharge from the incision site
- Lasting nausea or vomiting
- Pain that you cannot control with the medicines given
- Problems with thinking, balance, or movement
- Weakness, numbness, or tingling
- Headaches, fainting, vision problems, or problems passing urine or stool (poop)
- Pain, swelling, or cramping in your legs
Call for medical help right away for:
- Problems breathing
- Chest pain
If you think you have an emergency, call for medical help right away.
Prior to Procedure
The care team may meet with you to talk about:
- Anesthesia options
- Any allergies you may have
- Current medicines, herbs, and supplements that you take and whether you need to stop taking them before surgery
- Fasting before surgery, such as avoiding food or drink after midnight the night before
- Whether you need a ride to and from surgery
- Tests that will need to be done before the procedure
- Cerebral aneurysm. American Association of Neurological Surgeons website. Available at: https://www.aans.org/en/Patients/Neurosurgical-Conditions-and-Treatments/Cerebral-Aneurysm.
- Endovascular coiling. Johns Hopkins Medicine website. Available at: https://www.hopkinsmedicine.org/health/treatment-tests-and-therapies/endovascular-coiling.
- Rinkel, G.J.E. 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.
- Treatment of brain aneurysm. The Aneurysm and AVM Foundation website. Available at: https://www.taafonline.org/conditions/aneurysm/treatment.
- James Cornell, MD
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