Endovascular coiling is an interventional treatment for intracranial aneurysms and for bleeding elsewhere in the body, in which detachable platinum wire coils are implanted into the blood vessel or aneurysm to reduce blood flow and promote clotting within the aneurysm sac; coils are deployed in stages, first framing the aneurysm wall and then filling its interior with additional smaller coils. Performed under general anesthesia by an interventional neuroradiologist or neurosurgeon using fluoroscopic guidance, with a catheter threaded through the femoral artery to reach the aneurysm, the procedure is primarily used to prevent rupture of an unruptured cerebral aneurysm or to stop rebleeding after rupture, one of two main treatment approaches alongside surgical clipping, and it generally offers faster recovery while achieving comparable clinical outcomes.
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