{"id":"9d5dc07d-4333-40e2-aa38-094d1c274031","slug":"coil-embolization-with-overlapping-horizontal-low-profile-stents-to-treat-a-giant-thrombosed-fetal-posterior-cerebral-artery-aneurysm-using-contralateral-approach-through-anterior-communicating-artery","title":"Coil embolization with overlapping horizontal low-profile stents to treat a giant thrombosed fetal posterior cerebral artery aneurysm using contralateral approach through anterior communicating artery: Case report","authors":["Yasuhisa Kanematsu","Kenji Shimada","Yoshiteru Tada","Masaaki Korai","Takeshi Miyamoto","Shu Sogabe","Izumi Yamaguchi","Yoko Yamamoto","Nobuaki Yamamoto","Yuki Yamamoto","Koichi Satoh","Yasushi Takagi"],"abstract":"Background: The treatment of internal carotid artery (ICA) – posterior communicating artery aneurysms (ICPC aneurysms) is challenging when a fetal posterior cerebral artery (PCA) arises from the saccular neck. This complex angioarchitecture renders endovascular approaches difficult. Giant thrombosed IC-PC aneurysms are also hard to treat by endovascular coiling because its flow-diversion effect is insufficient. Case Description: We report the first case of a ruptured giant thrombosed IC-PC aneurysm associated with a fetal PCA that was successfully treated by coil embolization with retrograde overlap horizontal stenting using low-profile stents introduced through the contralateral ICA. The aneurysm was completely occluded and follow-up MRI scans demonstrated the reduction of the aneurysmal size. Conclusion: Our technique is advantageous because low-profile stents can be used to treat lesions not accessible with flow-diverter stents due their presence in complex angioarchitectures, and overlap stenting may have flow-diversion effects that can result in the complete occlusion of giant thrombosed aneurysms.","thumbnailUrl":"https://sni-digital-videos.s3.amazonaws.com/articles/9d5dc07d-4333-40e2-aa38-094d1c274031/featured/hero-cropped-1781562236865.jpg","publishDate":"2021-07-12T00:00:00.000Z","doi":"10.25259/SNI_533_2021","categories":["Neurovascular","Case Report"],"fullTextUrl":"https://surgicalneurologyint.com/wp-content/uploads/2021/07/10961/SNI-12-347.pdf"}