De novo vertebral artery dissecting aneurysm after internal trapping of the contralateral vertebral artery
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- Kidani, N., Sugiu, K., Hishikawa, T. et al. Acta Neurochir (2017) 159: 1329. doi:10.1007/s00701-017-3204-2
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We present the case of a de novo vertebral artery dissecting aneurysm (VADA) after endovascular trapping of a ruptured VADA on the contralateral side. The first ruptured VADA involved the posterior inferior cerebellar artery, which was successfully treated by endovascular internal trapping using a stent. A follow-up study at 3 months revealed a de novo VADA on the contralateral side. The second VADA was successfully embolized using coils while normal arterial flow in the vertebral artery was preserved using a stent. Increased hemodynamic stress may cause the development of a de novo VADA on the contralateral side.