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Endovascular Coiling

Endovascular coiling is a minimally invasive treatment used to help close off certain brain aneurysms and lower the risk of bleeding or rebleeding.

  • Stroke & Cerebrovascular Disorders

    We have decades of experience caring for patients with stroke & cerebrovascular disorders, pioneering minimally invasive treatments and leading research for new treatments to improve patient outcomes.

What Is Endovascular Coiling?

Endovascular coiling is a treatment for certain aneurysms, which are weak or bulging areas in a blood vessel. Instead of opening the skull, a physician guides a thin tube called a catheter through a blood vessel, usually from the wrist or groin, to reach the aneurysm in the brain. Tiny soft coils are then placed inside the aneurysm to reduce blood flow into it.

This treatment may help people with a brain aneurysm that has ruptured and caused bleeding, or an aneurysm that is considered at risk of bleeding. Whether coiling is the right option depends on the aneurysm’s size, shape and location, along with the patient’s overall health.

Why Choose Baptist Health?

Baptist Health Brain & Spine Care brings together specialists who care for complex brain and blood vessel conditions. For patients who need treatment for aneurysms and other cerebrovascular disorders, coordinated care can help support timely evaluation, treatment planning and follow-up.

Baptist Health Brain & Spine Care focuses on patient-centered care, clear communication and treatment decisions based on each person’s condition and goals. When endovascular treatment is appropriate, a minimally invasive approach may offer an alternative to open surgery for select patients.

Why Choose Baptist Health?

How It Works

During endovascular coiling, a physician threads a catheter through a blood vessel to the aneurysm. Tiny platinum coils are released into the aneurysm sac. These coils help slow blood flow into the bulge and encourage clotting inside it, which helps seal it off from the normal circulation.

In some cases, other devices may also be used to help keep the coils in place or support treatment. The exact approach depends on the aneurysm and should be determined by the care team.

Who May Benefit

Endovascular coiling may be considered for people who have:

  • A ruptured aneurysm that needs urgent treatment
  • An unruptured aneurysm with features that may increase the risk of bleeding
  • Aneurysms that may be safely reached through a blood vessel approach
  • Symptoms or imaging findings that need evaluation by a cerebrovascular specialist

A full evaluation is needed to decide whether coiling, surgery or monitoring is the best next step.

Benefits and Risks

Potential Benefits

Potential benefits of endovascular coiling may include:

  • A minimally invasive approach
  • No large incision in the scalp
  • Shorter hospital stay for some patients compared with open surgery
  • Treatment of certain aneurysms without open brain surgery

Potential Risks

Possible risks vary based on the aneurysm and the patient’s health, but may include:

  • Bleeding
  • Blood vessel injury
  • Stroke
  • Coil movement or incomplete closure of the aneurysm
  • Need for additional treatment later
  • Reaction to contrast dye or anesthesia-related risks when applicable

Your care team will explain the potential benefits and risks in the context of your specific condition.

What to Expect

  • Before treatment, you may need imaging tests such as a CT scan, MRI or angiogram, which is a detailed study of the blood vessels. Your care team will review your medications, medical history and whether the aneurysm has ruptured. You may also receive instructions about eating, drinking and blood-thinning medicines.

  • During the procedure, you are typically given anesthesia or sedation so you remain comfortable. A catheter is inserted into a blood vessel, then guided to the aneurysm using live X-ray imaging. The physician places tiny coils into the aneurysm and checks the result before removing the catheter.

  • After treatment, you will be monitored closely. Some patients stay in the hospital for observation, while others may need more intensive care, especially after a ruptured aneurysm or subarachnoid hemorrhage. Your team will watch for changes in neurologic function, blood pressure and healing.

Recovery

Recovery depends on why the procedure was done and whether bleeding occurred before treatment. People treated for an unruptured aneurysm may recover faster than those treated after an emergency. Follow-up visits and imaging are important because some aneurysms may need long-term monitoring or additional treatment.

Your physician will explain activity limits, medication instructions and when you can return to daily routines.

Frequently Asked Questions

  • Endovascular coiling is mainly used to treat certain brain aneurysms. The goal is to block blood flow into the aneurysm so it is less likely to bleed or bleed again.

  • It is a procedure, but it is usually considered minimally invasive rather than open surgery. The physician reaches the aneurysm through a blood vessel instead of making a large opening in the skull.

  • Some people with ruptured or unruptured aneurysms may be candidates. The best option depends on the aneurysm’s size, shape and location, as well as your age, symptoms and overall health.

  • Recovery varies. Patients treated for an unruptured aneurysm may recover sooner, while those treated after bleeding often need a longer hospital stay and more follow-up care. Your recovery plan depends on your condition.

  • Yes. Risks can include bleeding, stroke, blood vessel injury or the need for more treatment later. Your physician will review the possible risks and benefits based on your specific aneurysm and treatment plan.

  • Yes, follow-up imaging is often part of care after coiling. It helps your physician check how well the aneurysm remains sealed and whether more monitoring or treatment is needed.

  • No. Both treat aneurysms, but clipping is an open surgical procedure that places a clip across the aneurysm. Coiling treats the aneurysm from inside the blood vessel using a catheter and tiny coils.

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