CINCINNATIA retrospective analysis of 100 patients suffering from a ruptured brain aneurysm has found that expensive new coiling devices are no more effective than bare platinum coils at preventing aneurysms from recurring.
A team of researchers from the Neuroscience Institute at the University of Cincinnati (UC) and University Hospital, led by Andrew Ringer, MD, evaluated the risk of intracranial aneurysm recurrence after endovascular treatment with each of three different kinds of coils.
Ringer, the studys principal investigator, is a neurosurgeon with the Mayfield Clinic and is director of endovascular neurosurgery and associate professor of neurosurgery at UC.
The findings are being presented at the International Stroke Conference this week in New Orleans.
An intracranial aneurysm is a balloon-like bulge or blister on an artery in the brain. Aneurysms with thin necks, known as saccular aneurysms, are often treated with a clip. During a craniotomy, a procedure in which the skull is surgically opened, a neurosurgeon places the clip across the neck of the aneurysm, shutting off the aneurysms blood supply.
Surgeons also can use a minimally invasive procedure to treat saccular aneurysms through coiling. A catheter is inserted into an artery in the groin and threaded up through the body to the brain, and a tiny coil is discharged directly into the aneurysm. The minimally invasive procedure enables the patient to avoid surgery and the risks associated with opening the skull.
In an important drawback, however, coils may occasionally compact within the aneurysm. When compaction occurs, blood flows back into the aneurysm, making repeated treatment necessary.
Companies have tried to address the issue of recurrence after coiling by engineering coils using one of two different approaches, Ringer says. One is coated with a polymer designed to promote tissue healing at the neck (opening) of the aneurysm,
|Contact: Cindy Starr|
University of Cincinnati