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CC BY-NC-ND 4.0 · Asian J Neurosurg 2023; 18(01): 174-179
DOI: 10.1055/s-0043-1760854
Case Report

An Illustrative Case of Bilateral Internal Carotid Artery Occlusion Concomitant with Aneurysm of the Obstructed ICA Reconstituted via Collaterals: Emphasizing the Role of Rescue Collaterals in Decision-Making

Azad Malikov 
1   Department of Neurosurgery, Ankara City Hospital, Ankara, Turkey
,
Bige Sayin
2   Department of Interventional Radiology, Ankara City Hospital, Ankara, Turkey
,
Ilkay Akmangit
2   Department of Interventional Radiology, Ankara City Hospital, Ankara, Turkey
,
Yigit Can Senol
1   Department of Neurosurgery, Ankara City Hospital, Ankara, Turkey
,
Ergun Daglioglu
1   Department of Neurosurgery, Ankara City Hospital, Ankara, Turkey
,
Ahmet Deniz Belen
1   Department of Neurosurgery, Ankara City Hospital, Ankara, Turkey
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Abstract

In patients with bilateral internal carotid artery (ICA) obstruction, the basilar and ophthalmic arteries become the most critical arteries for brain perfusion, and the location of aneurysm formation may be associated with increased wall shear stress induced by compromised carotid circulation. Consideration of collateral routes may have an impact on therapeutic decisions for patients undergoing extracranial to intracranial (EC-IC) bypass and aneurysm surgery. We report a rare case of a young woman with bilateral ICA occlusion simultaneous with dissecting aneurysm of the obstructed ICA reconstituted via collaterals, emphasizing the functional value of collaterals and therapeutic strategy. We present a young woman with angiographic evidence of cerebrovascular early atherosclerotic disease. A young patient was found to have bilateral ICA occlusion and dissecting aneurysm of the obstructed ICA. A large fusiform aneurysm was clipped. Then, an anastomosis was performed from the left superficial temporal to the M3 segment of the middle cerebral artery. The patient's postoperative course was uneventful, and she was discharged to rehabilitation with no residual sequelae. This case illustrates a rare case of bilateral ICA occlusions, presented with robust collaterals, and dissecting aneurysm of the obstructed ICA reconstituted via collaterals. We also demonstrate excellent surgical clipping of a challenging ICA aneurysm and cerebral bypass surgery.

Keywords

internal carotid artery occlusion - multiple aneurysms - collaterals - ICA bifurcation aneurysm - STA-MCA bypass

Ethical Approval

Ethical approval was not sought for this case report as it was not required due to the nature of the case report.


Consent

Written informed consent was obtained from the patient for publication of this case report and accompanying images. A copy of the written consent is available for the review of the editor-in-chief of this journal on request.




Publication History

Article published online:
31 March 2023

© 2023. Asian Congress of Neurological Surgeons. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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