Coil Embolization

Coil embolization stops bleeding or abnormal blood flow within an artery. For example, coil embolization can be used to:

• Close a patent ductus arteriosus (PDA)
• Stop abnormal blood flow in an arteriovenous malformation (AVM)
• Stop bleeding in an aneurysm
• Stop intestinal bleeding

How does coil embolization work?

Coil embolization is a catheter-based procedure that allows precise sealing of abnormal blood flow in a blood vessel. A catheter with a metallic occluding coil is inserted into an artery, usually in the groin (the femoral artery). The catheter is placed inside a blood vessel and the metal coil is released, springing into position within the vessel. It remains firmly in place by the expansion of the metal coils. A blood clot will form on the coil, completely obstructing the abnormal blood flow beyond the coil. Eventually a scar will form, creating a permanent seal.