A Case of Coil Embolization with Crossing Y-Configuration Stenting for a Recurrent IC-PC Aneurysm after Clipping

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  • Sato Shinji
    Department of Neurosurgery, Yamagata University Faculty of Medicine, Yamagata, Yamagata, Japan
  • Kokubo Yasuaki
    Department of Neurosurgery, Yamagata University Faculty of Medicine, Yamagata, Yamagata, Japan
  • Kawanami Kanako
    Department of Neurosurgery, Yamagata University Faculty of Medicine, Yamagata, Yamagata, Japan
  • Itagaki Hiroshi
    Department of Neurosurgery, Yamagata University Faculty of Medicine, Yamagata, Yamagata, Japan
  • Matsumoto Yasushi
    Department of Neuroendovascular Therapy, Kohnan Hospital, Sendai, Miyagi, Japan
  • Sonoda Yukihiko
    Department of Neurosurgery, Yamagata University Faculty of Medicine, Yamagata, Yamagata, Japan

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<p>Objective: We report a case in which coil embolization using crossing Y-configuration stenting was effective for an internal carotid-posterior communicating artery (IC-PC) aneurysm with repeated recurrence after clipping.</p><p>Case Presentation: The patient was a 57-year-old woman. Nine months after undergoing clipping for a ruptured right IC-PC aneurysm at 55 years of age, she developed a second subarachnoid hemorrhage (SAH) due to recurrence of the aneurysm and underwent clipping at the same site. A third SAH due to rupture of the left IC-PC aneurysm developed 1.5 years after the second clipping. Simultaneously, recurrence of a right IC-PC aneurysm was noted and she was referred to our department. The recurrent right IC-PC aneurysm was considered to have originated from the distal to the initial neck. It was 7 mm in size and had an irregularly shaped wide neck. As it was assumed that there would be marked adhesion due to repeated surgery, we decided to treat the aneurysm by coil embolization instead of direct surgery. Although the aneurysm neck partially involved the posterior communicating artery (Pcom), tight packing with a minimal residual neck was required. Therefore, crossing Y-configuration stenting was deployed on the internal carotid artery and Pcom using two Neuroform Atlas stents, and coil embolization was performed by the jail technique. The recurrent aneurysm was obliterated. There were no deficits or thrombotic complications after surgery. On DSA follow-up, no compaction or recurrence was observed, and the Pcom was well visualized one year later.</p><p>Conclusion: Coil embolization by crossing Y-configuration stenting is a viable treatment option for a recurrent IC-PC wide neck aneurysm.</p>

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