Brain aneurysm repair is surgery to correct an aneurysm. This is a weak area in a blood vessel wall that causes the vessel to bulge or balloon out and sometimes burst (rupture). It may cause:
- Bleeding into the area around the brain (also called a subarachnoid hemorrhage)
- Bleeding into the brain that forms a collection of blood (hematoma)
Aneurysm repair - cerebral; Cerebral aneurysm repair; Coiling; Saccular aneurysm repair; Berry aneurysm repair; Fusiform aneurysm repair; Dissecting aneurysm repair; Endovascular aneurysm repair - brain; Subarachnoid hemorrhage - aneurysm
There are 2 common methods used to repair an aneurysm:
- Clipping is done during an open craniotomy.
- Endovascular repair, most often using a coil or coiling and stenting (mesh tubes), is a less invasive way to treat some aneurysms.
During aneurysm clipping:
- You are given general anesthesia and a breathing tube.
- Your scalp, skull, and the coverings of the brain are opened.
- A metal clip is placed at the base (neck) of the aneurysm to prevent it from breaking open (bursting).
During endovascular repair of an aneurysm:
- You may have general anesthesia and a breathing tube. Or, you may be given medicine to relax you, but not enough to put you to sleep.
- A catheter is guided through a small cut in your groin to an artery and then to the blood vessel in your brain where the aneurysm is located.
- Contrast material is injected through the catheter. This allows the surgeon to view the arteries and the aneurysm on a monitor in the operating room.
- Thin metal wires are put into the aneurysm. They then coil into a mesh ball. For this reason, the procedure is also called coiling. Blood clots that form around this coil prevent the aneurysm from breaking open and bleeding. Sometimes stents (mesh tubes) are also put in to hold the coils in place.
- During and right after the procedure, you may be given heparin. This medicine prevents dangerous blood clots from forming.