{"id":"aaa29be6-96c1-4a2c-8f28-71d6decce1c0","slug":"coil-embolization-for-post-bypass-aneurysm-of-middle-meningeal-artery-for-moyamoya-disease-preservation-of-transdural-anastomosis","title":"Coil embolization for post-bypass aneurysm of middle meningeal artery for moyamoya disease – preservation of transdural anastomosis","authors":["Kunitaka Maruyama","Daina Kashiwazaki","Shusuke Yamamoto","Naoki Akioka","Emiko Hori","Satoshi Kuroda"],"abstract":"Background: Middle meningeal artery (MMA) pseudoaneurysm following revascularization surgery for moyamoya disease (MMD) is rare. Case Description: Here, a 29-year-old man presented with an MMA pseudoaneurysm after he underwent revascularization surgery (superficial temporal artery-to-middle cerebral artery bypass and encephalo-duro-myoarterio-pericranial synangiosis) for hemorrhagic MMD. At 3 months post-surgery, digital subtraction angiography showed a pseudoaneurysm in the right MMA. Transdural anastomosis to the parietal and occipital lobes was opacified at the distal MMA of the pseudoaneurysm. Intra-aneurysmal coil embolization was performed for preservation of transdural anastomosis. The postoperative course was uneventful. At 1 month post-embolization, angiography revealed an entirely occluded pseudoaneurysm. Conclusion: An increase in blood flow in the MMA due to bypass surgery may accelerate aneurysm development by increasing the hemodynamic stress. This case suggested that intra-aneurysmal embolization may be a potential treatment.","thumbnailUrl":"https://sni-digital-videos.s3.amazonaws.com/articles/aaa29be6-96c1-4a2c-8f28-71d6decce1c0/featured/hero-1781560350267.png","publishDate":"2023-04-28T00:00:00.000Z","doi":"10.25259/SNI_224_2023","categories":["Neurovascular","Case Report"],"fullTextUrl":"https://surgicalneurologyint.com/wp-content/uploads/2023/04/12294/SNI-14-157.pdf"}