Redefining Onyx HD 500 in the Flow Diversion Era

We report the largest US case series results using Onyx HD-500 (EV3), a new liquid embolic agent, in the successful treatment of 21 patients with wide-neck intracranial aneurysms (mean size 4.5 mm), which are at increased risk of incomplete occlusion or recanalization with standard endovascular inte...

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Main Authors: Richard Tyler Dalyai, Ciro Randazzo, George Ghobrial, L. Fernando Gonzalez, Stavropoula I. Tjoumakaris, Aaron S. Dumont, Robert H. Rosenwasser, Pascal Jabbour
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:International Journal of Vascular Medicine
Online Access:http://dx.doi.org/10.1155/2012/435490
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author Richard Tyler Dalyai
Ciro Randazzo
George Ghobrial
L. Fernando Gonzalez
Stavropoula I. Tjoumakaris
Aaron S. Dumont
Robert H. Rosenwasser
Pascal Jabbour
author_facet Richard Tyler Dalyai
Ciro Randazzo
George Ghobrial
L. Fernando Gonzalez
Stavropoula I. Tjoumakaris
Aaron S. Dumont
Robert H. Rosenwasser
Pascal Jabbour
author_sort Richard Tyler Dalyai
collection DOAJ
description We report the largest US case series results using Onyx HD-500 (EV3), a new liquid embolic agent, in the successful treatment of 21 patients with wide-neck intracranial aneurysms (mean size 4.5 mm), which are at increased risk of incomplete occlusion or recanalization with standard endovascular intervention utilizing detachable platinum coils. All aneurysms were located in the anterior circulation, and three aneurysms presented as acute subarachnoid hemorrhages. Complete aneurysm occlusion was present in 19 of 21 patients (90%). On six-month followup, one patient with an initially small residual neck progressed to total occlusion. Aneurysm recanalization was not detected in any patients on mean follow up of 8.9 months in 11 patients. Four patients experienced transient neurologic deficits in the immediate postoperative period and one in a delayed fashion. Embolization with the liquid embolic agent Onyx appears to be a safe and effective endovascular modality of treatment for wide-neck aneurysms or recurrent aneurysms that had previously failed treatment with detachable coils.
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institution Kabale University
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series International Journal of Vascular Medicine
spelling doaj-art-e65cf6e91eea4abb818ebb66e19b2f882025-02-03T01:26:40ZengWileyInternational Journal of Vascular Medicine2090-28242090-28322012-01-01201210.1155/2012/435490435490Redefining Onyx HD 500 in the Flow Diversion EraRichard Tyler Dalyai0Ciro Randazzo1George Ghobrial2L. Fernando Gonzalez3Stavropoula I. Tjoumakaris4Aaron S. Dumont5Robert H. Rosenwasser6Pascal Jabbour7Department of Neurosurgery, Thomas Jefferson University Hospital, Philadelphia, PA 19107, USADepartment of Neurosurgery, Thomas Jefferson University Hospital, Philadelphia, PA 19107, USADepartment of Neurosurgery, Thomas Jefferson University Hospital, Philadelphia, PA 19107, USADepartment of Neurosurgery, Thomas Jefferson University Hospital, Philadelphia, PA 19107, USADepartment of Neurosurgery, Thomas Jefferson University Hospital, Philadelphia, PA 19107, USADepartment of Neurosurgery, Thomas Jefferson University Hospital, Philadelphia, PA 19107, USADepartment of Neurosurgery, Thomas Jefferson University Hospital, Philadelphia, PA 19107, USADepartment of Neurosurgery, Thomas Jefferson University Hospital, Philadelphia, PA 19107, USAWe report the largest US case series results using Onyx HD-500 (EV3), a new liquid embolic agent, in the successful treatment of 21 patients with wide-neck intracranial aneurysms (mean size 4.5 mm), which are at increased risk of incomplete occlusion or recanalization with standard endovascular intervention utilizing detachable platinum coils. All aneurysms were located in the anterior circulation, and three aneurysms presented as acute subarachnoid hemorrhages. Complete aneurysm occlusion was present in 19 of 21 patients (90%). On six-month followup, one patient with an initially small residual neck progressed to total occlusion. Aneurysm recanalization was not detected in any patients on mean follow up of 8.9 months in 11 patients. Four patients experienced transient neurologic deficits in the immediate postoperative period and one in a delayed fashion. Embolization with the liquid embolic agent Onyx appears to be a safe and effective endovascular modality of treatment for wide-neck aneurysms or recurrent aneurysms that had previously failed treatment with detachable coils.http://dx.doi.org/10.1155/2012/435490
spellingShingle Richard Tyler Dalyai
Ciro Randazzo
George Ghobrial
L. Fernando Gonzalez
Stavropoula I. Tjoumakaris
Aaron S. Dumont
Robert H. Rosenwasser
Pascal Jabbour
Redefining Onyx HD 500 in the Flow Diversion Era
International Journal of Vascular Medicine
title Redefining Onyx HD 500 in the Flow Diversion Era
title_full Redefining Onyx HD 500 in the Flow Diversion Era
title_fullStr Redefining Onyx HD 500 in the Flow Diversion Era
title_full_unstemmed Redefining Onyx HD 500 in the Flow Diversion Era
title_short Redefining Onyx HD 500 in the Flow Diversion Era
title_sort redefining onyx hd 500 in the flow diversion era
url http://dx.doi.org/10.1155/2012/435490
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