Shrey Shah
Recanalization Rates Among
Endovascularly Treated Cerebral
Aneurysms

Research

Recanalization Rates Among Endovascularly Treated Cerebral Aneurysms

Hypothesis

Since the early 1990’s, endovascular procedures have been used as treatments for cerebral aneurysms and are much less invasive than the traditional practice of surgically clipping aneurysms. The objectives of this study were to (a) determine the recanalization rate of endovascularly treated cerebral aneurysms that require retreatment and to compare this value with the complication rate of surgically clipped aneurysms; (b) identify potential trends between recanalizations; (c) determine the efficacy of coils produced by various manufacturers.

Methodology

The medical reports for the 111 patients who underwent endovascular treatments for cerebral aneurysms between 2004 and 2006 at Lakewood Hospital were collected. Details for each case, including aneurysm size, coil type, and specific treatment were noted. The overall recanalization rate, as well as the recanalization rates among different coil types, aneurysm sizes, and specific treatment methods, was recorded.

Outcomes

The recanalization rate among endovascularly treated cerebral aneurysms was 6.31%, and is significantly lower than the complication rate for neurosurgically clipped aneurysms, which is estimated to be about 30% (although recanalization is only one possible complication of those associated with endovascular coiling). Coiling significantly decreases hospital stay time, as well as the recovery time for the patient over surgical clipping.