Perianeurysm edema with second-generation bioactive coils.

Perianeurysm edema with second-generation bioactive coils.
Surg Neurol. 2007 Oct 30

Marden FA, Putman CM.
Division of Interventional Neuroradiology, Department of Radiology, Inova Fairfax Hospital, Falls Church, VA 22042, USA; Department of Neurological Surgery, George Washington University Hospital, Washington, DC 20052, USA.

BACKGROUND: Perianeurysm edema is an uncommon complication of intracranial aneurysms, occurring mostly in giant aneurysms that suddenly thrombose.

CASE DESCRIPTION: We present the first report of an unruptured, nongiant, saccular aneurysm that developed marked perianeurysm edema after embolization with Matrix2 coils. In this case, follow-up catheter angiography showed a new coil tail protruding beyond the dome of the aneurysm in the region of the most intense edema.

CONCLUSIONS: We postulate that perianeurysm edema may occur after breakdown of the aneurysm wall accompanied by an inflammatory response to exposed bioactive coils. Clinicians should be aware of this potential complication and consider performing earlier surveillance angiography when this occurs to ensure that there has not been a shift in the coil mass and recurrence of the aneurysm.

PMID: 17976696 [PubMed - as supplied by publisher]