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Case report
Successfully treated symptomatic fusiform basilar artery aneurysm in a patient with hindbrain malformation via inverted Y-stenting
  1. Alixandra S Purakal,
  2. Daniel Thomas Ginat,
  3. Seon-Kyu Lee
  1. Section of Diagnostic Neuroradiology and Neurointerventional Radiology, Department of Radiology, The University of Chicago, Chicago, Illinois, USA
  1. Correspondence to Dr Daniel Ginat, The University of Chicago, Department of Radiology, 5841 S. Maryland Avenue, Chicago IL 60637, USA; dtg1{at}uchicago.edu

Abstract

A double overlapping reverse Y-stent approach to creating flow diversion using traditional open-cell stent technology was evaluated as a treatment option symptomatic fusiform basilar aneurysms. A 36-year-old man with a complex hindbrain malformation presented with acute ocular dysmotility due to a rapidly enlarging fusiform basilar artery aneurysm. The aneurysm was treated by insertion of two stents into the vertebrobasilar system in an inverted Y-configuration from the basilar tip to the V4 segments of the bilateral vertebral arteries, essentially creating flow diversion without using a dedicated flow diversion device. This resulted in immediate symptomatic improvement. The stents remained patent and the aneurysm was obliterated at 6 months follow-up. Furthermore, the patient remained free of associated symptoms at 10 months follow-up. Thus, the double stenting technique can be used instead of a flow diversion device to effectively create flow diversion, promote aneurysm sac thrombosis, and lead to resolution of symptoms in large fusiform basilar artery aneurysms.

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