Intracranial aneurysms are small balloon-like dilated portions of blood vessels that may occasionally rupture, causing haemorrhage, stroke or death. Usually, the cause is unknown, but people with ...

A study led by UCSF neurologist S. Claiborne Johnston, MD, has shown that coiling of ruptured brain aneurysms is very effective during long-term follow-up, similar to outcomes with surgical clipping.

This section describes safety outcomes from the published literature that the Committee considered as part of the evidence about this procedure. For more detailed information on the evidence, see the ...

The procedure involves inserting a catheter into an artery or vein and deploying the coil to block the flow of oxygenated blood to the affected area. The World Health Organization recognizes the ...