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Intra-arterial Onyx Embolization of Vertebral Body Lesions
Neda I. Sedora-Roman,Bradley A. Gross,Arra Suresh Reddy,Christopher S. Ogilvy,Ajith J. Thomas 대한뇌혈관외과학회 2013 Journal of Cerebrovascular and Endovascular Neuros Vol.15 No.4
While Onyx embolization of cerebrospinal arteriovenous shunts is well-established,clinical researchers continue to broaden applications to other vascular lesions of the neuraxis. This report illustrates the application of Onyx (eV3, Plymouth, MN) embolization to vertebral body lesions, specifically,a vertebral hemangioma and renal cell carcinoma vertebral body metastatic lesion.
Middle Meningeal Artery Arising from the Basilar Artery
Mohamed M. Salem,Matthew R. Fusco,Parviz Dolati,Arra S. Reddy,Bradley A. Gross,Christopher S. Ogilvy,Ajith J. Thomas 대한뇌혈관외과학회 2014 Journal of Cerebrovascular and Endovascular Neuros Vol.16 No.4
Various anomalies for the origin of the middle meningeal artery (MMA)have been described in the literature. However, origin of the MMA fromthe basilar trunk is an extremely rare variant. We report on a 54-year-oldfemale who presented with frequent headaches; magnetic resonanceimaging showed a right parietal meningioma. The abnormal origin of themiddle meningeal artery from the basilar artery was diagnosed by angiographyperformed for preoperative embolization of the tumor. We reporton the case with a review of the embryologic basis, possible explanationsfor this aberrant origin, and its clinical implications.
Preoperative Embolization of Extra-axial Hypervascular Tumors with Onyx
Matthew R. Fusco,Bradley A. Gross,Mohamed M. Salem,Arra S. Reddy,Christopher S. Ogilvy,Ekkehard M. Kasper,Ajith J. Thomas 대한뇌혈관외과학회 2016 Journal of Cerebrovascular and Endovascular Neuros Vol.18 No.1
Objective:Preoperative endovascular embolization of intracranial tumors is performed to mitigate anticipated intraoperative blood loss. Although the usage of a wide array of embolic agents, particularly polyvinyl alcohol (PVA), has been described for a variety of tumors, literature detailing the efficacy, safety and complication rates for the usage of Onyx is relatively sparse. Materials and Methods:We reviewed our single institutional experience with pre-surgical Onyx embolization of extra-axial tumors to evaluate its efficacy and safety and highlight nuances of individualized cases. Results:Five patients underwent pre-surgical Onyx embolization of large or giant extra-axial tumors within 24 hours of surgical resection. Four patients harbored falcine or convexity meningiomas (grade I in 2 patients, grade II in 1 patient and grade III in one patient), and one patient had a grade II hemangiopericytoma. Embolization proceeded uneventfully in all cases and there were no complications. Conclusion:This series augments the expanding literature confirming the safety and efficacy of Onyx in the preoperative embolization of extra-axial tumors, underscoring its advantage of being able to attain extensive devascularization via only one supplying pedicle.