Long-term follow-up analysis of microsurgical clip ligation and endovascular coil embolization for dorsal wall blister aneurysms of the internal carotid artery

Publication date: Available online 11 January 2017 Source:Journal of Clinical Neuroscience Author(s): Mason A. Brown, Cristian F. Guandique, Jonathan Parish, Aubrey C. McMillan, Stephen Lehnert, Nassir Mansour, Michael Tu, Bradley N. Bohnstedt, Troy D. Payner, Thomas J. Leipzig, Andrew J. DeNardo, John A. Scott, Aaron A. Cohen-Gadol Blister aneurysms at non-branching sites of the dorsal internal carotid artery (dICA) are fragile, rare, and often difficult to treat. The purpose of this study is to address the demographics, treatment modalities, and long-term outcome of patients treated for dICA blister aneurysms. A retrospective review of medical records identified all consecutive patients who presented with a blister aneurysm from 2002 to 2011 at our institution. Eighteen patients (M =7, F =11; mean age: 48.4±15.1years; range: 15–65years) harbored a total of 43 aneurysms, 25 of which were dorsal wall blister aneurysms of the ICA. Eleven (61.1%) patients presented with aneurysmal subarachnoid hemorrhage (aSAH), and 10 (55.6%) patients had multiple aneurysms at admission. Twelve patients had 18 aneurysms that were treated microsurgically. Five (41.7%) of these patients had a single recurrence that was retreated with subsequent repeat clip ligation. Six patients had 7 blister aneurysms that were treated with endovascularly. One (16.7%) of these patients had a single recurrence that was retreated with subsequent coil embolization. Postoperative vasospasm occurre...
Source: Journal of Clinical Neuroscience - Category: Neuroscience Source Type: research