Morphological and Technical Factors Associated with Complications and Recanalization of Pericallosal Artery Aneurysms after Endovascular Treatment

Goran Pavlisa*

DOI: 10.26717/BJSTR.2017.01.000196

Received: July 08, 2017;   Published: July 18, 2017

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Abstract

We present a series of 31 patients who underwent endovascular treatment due to a pericallosal artery aneurysm. To our knowledge, this is the largest series of patients with pericallosal aneurysms treated by endovascular approach reported so far. The distal location and generally small size of these aneurysms both make them difficult for surgical and endovascular treatment. Our aim was to try to define the risk factors for recanalization and complications of treatment. Various factors were analyzed, such as the patient’s age, occurrence of subarachnoid hemorrhage, aneurysm size, morphology/neck width and side of the aneurysm, incorporation of arterial branches, dominant ipsilateral A1 segment and other anatomic variations, presence of other aneurysms, type of coils used for treatment, the need for stent implantation and the initial degree of occlusion. Our rate of complications of 9.7% and recanalization of 16% were relatively high compared to other aneurysm sites. Relatively large aneurysms and those which incorporated branches were more prone to recanalization. Pericallosal aneurysms in our study were however very morphologically and anatomically heterogeneous, making our sample size insufficient to show the impact of these factors on complications.

Keywords: Pericallosal artery aneurysm; Endovascular treatment; Aneurysm recanalization; Complications

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