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E-135 Endovascular treatment of acute extracranial internal carotid artery stroke - Systematic review and pooled analysis of data from the last decade
ConclusionOur systematic review for endovascular treatment of EC-ICA strokes found a high rate of good outcomes and an impressive rate for recanalization, with low mortality rates. Since these results are from observational, retrospective studies, more rigorous randomized trials are required to establish the best approach.Disclosures A. Baig: None. M. Waqas: None. S. Khan: None. A. Monteiro: None. H. Rai: None. R. Dossani: None. J. Cappuzzo: None. F. Almayman: None. J. Davies: 1; C; National Center for Advancing Translational Sciences of the National Institutes of Health under award number KL2TR001413 to the University at ...
Source: Journal of NeuroInterventional Surgery - July 26, 2021 Category: Neurosurgery Authors: Baig, A., Waqas, M., Khan, S., Monteiro, A., Rai, H., Dossani, R., Cappuzzo, J., Almayman, F., Davies, J., Snyder, K., Levy, E., Siddiqui, A. Tags: Electronic poster abstracts Source Type: research

E-044 Stenting of intracranial stenosis through an angioplasty balloon catheter - A case series
ConclusionDeploying self-expanding stents through an angioplasty balloon catheter is feasible, safe, and can greatly simplify the procedure. The Neuroform Atlas stent is strong enough to prevent immediate recoil of intracranial stenosis after angioplasty.Disclosures A. Takayanagi: None. J. Fields: None. K. Chao: None. D. Rex: None. P. Cheng: None. L. Feng: None.
Source: Journal of NeuroInterventional Surgery - July 26, 2021 Category: Neurosurgery Authors: Takayanagi, A., Fields, J., Chao, K., Rex, D., Cheng, P., Feng, L. Tags: Electronic poster abstracts Source Type: research

E-058 Carotid artery stenting using balloon-guide catheter for proximal occlusion as distal embolic protection
ConclusionOur study indicates a low periprocedural ischemic stroke development following the use of proximal occlusion as the distal embolic protection strategy with BGC in CAS.Disclosures M. Nahhas: None. G. Meeks: None. G. Spiegel: None. Y. Alderazi: None. M. Dannenbaum: None. S. Sheth: None.
Source: Journal of NeuroInterventional Surgery - July 26, 2021 Category: Neurosurgery Authors: Nahhas, M., Meeks, G., Spiegel, G., Alderazi, Y., Dannenbaum, M., Sheth, S. Tags: Electronic poster abstracts Source Type: research

E-065 Stenting and flow diversion for pediatric intracranial aneurysms
ConclusionThis series demonstrates the safety and effectiveness of endovascular treatment of pediatric aneurysms, with no issues regarding the durability of flow-diverters and stents at continued long-term follow up.Disclosures H. Rai: None. F. Almayman: None. M. Waqas: None. A. Kalanovic: None. A. Monteiro: None. A. Baig: None. M. Recker: None. A. Siddiqui: 1; C; NIH/NINDS 1R01NS091075. 4; C; Amnis Therapeutics, Apama Medical, Blink TBI, Buffalo Technology Partners, Cardinal Consultants, Cerebrotech Medical Systems, Cognition Medical, Endostream Medical, Imperative Care, International Medi. E. Levy: 2; C; Claret Medical, ...
Source: Journal of NeuroInterventional Surgery - July 26, 2021 Category: Neurosurgery Authors: Rai, H., Almayman, F., Waqas, M., Kalanovic, A., Monteiro, A., Baig, A., Recker, M., Siddiqui, A., Levy, E. Tags: Electronic poster abstracts Source Type: research

Endovascular treatment for AIS with underlying ICAD
Conclusions Despite AIS with underlying ICAD requiring a more complex, technically demanding recanalization strategy than traditional thromboembolic AIS, it appears safe, and good outcomes are obtainable.
Source: Journal of NeuroInterventional Surgery - September 12, 2017 Category: Neurosurgery Authors: Al Kasab, S., Almadidy, Z., Spiotta, A. M., Turk, A. S., Chaudry, M. I., Hungerford, J. P., Turner, R. D. Tags: Ischemic stroke Source Type: research

P-013 Long-term outcome of balloon angioplasty without stenting for symptomatic middle cerebral artery stenosis
Conclusions Balloon angioplasty without stenting for symptomatic MCA stenosis can be performed with a high successful rate and a low risk of complications. Long-term outcome data suggest that this procedure reduces the risk of further strokes. Disclosures T. Ueda: None. T. Takada: None. S. Takaishi: None. T. Fukano: None. K. Tatsuno: None. T. Yoshie: None.
Source: Journal of NeuroInterventional Surgery - July 23, 2017 Category: Neurosurgery Authors: Ueda, T., Takada, T., Takaishi, S., Fukano, T., Tatsuno, K., Yoshie, T. Tags: Oral Poster Abstracts Source Type: research

P-014 Beyond diagnostic angiography: the transradial approach as first line for both anterior and posterior circulation interventions
Conclusions This represents the largest series of TRA for anterior circulation neurointerventional procedures. The targeted intervention was successfully performed via the radial approach in 91% of the cases, for a wide variety of pathologies, with no access-related complications. Given this technical success and improved access safety profile, we now employ the transradial approach as first line for interventional procedures. Disclosures J. Caplan: None. B. Snelling: None. S. Sur: None. P. Khandelwal: None. R. Starke: None. D. Yavagal: 2; C; Medtronic. E. Peterson: 2; C; Codman, Stryker, Medtronic.
Source: Journal of NeuroInterventional Surgery - July 23, 2017 Category: Neurosurgery Authors: Caplan, J., Snelling, B., Sur, S., Khandelwal, P., Starke, R., Yavagal, D., Peterson, E. Tags: Oral Poster Abstracts Source Type: research

E-008 Endovascular recanalization of intracranial arterial stenosis in patients with medical failure
Conclusion Endovascular recanalization of unstable intracranial atherosclerotic stenosis who have failed medical therapy is feasible and safe. Disclosures P. Aguilar-Salinas: None. R. Hanel: 1; C; Microvention. 2; C; Medtronic; Stryker; Microvention. 4; C; Blockade Medical. E. Sauvageau: None. D. Lopes: 2; C; Microvention. A. Saied: None. T. Jovin: 2; C; Medtronic. 3; C; Blockade Medical; Silk Road Medical. A. Jadhav: None. L. Kaustubh: None. L. Brasiliense: None. T. Dumont: None. J. Cherian: None. P. Kan: None. A. Aghaebrahim: None.
Source: Journal of NeuroInterventional Surgery - July 23, 2017 Category: Neurosurgery Authors: Aguilar-Salinas, P., Hanel, R., Sauvageau, E., Lopes, D., Saied, A., Jovin, T., Jadhav, A., Kaustubh, L., Brasiliense, L., Dumont, T., Cherian, J., Kan, P., Aghaebrahim, A. Tags: Electronic Poster Abstracts Source Type: research

E-027 Matricidal cavernous aneurysms: a multicenter case series
Conclusion Matricidal aneurysms require careful consideration and planning. The restricted anatomy of the cavernous sinus can make successful execution of endovascular interventions difficult. Direct elastic compression of the parent artery does not respond to angioplasty and stenting the way that atherosclerotic stenosis does. Because of this, planning for possible parent vessel sacrifice is important. Abstract E-027 Table 1 Intended Treatments and Outcomes n Intended Treatment Failed Treatment (rate) All Patients 37 10 (27%) Flow Diversion 18 5 (28%) Parent Vessel Sacrifice 11 With Bypass 4 2 (50%) Without Bypass 7 0 ...
Source: Journal of NeuroInterventional Surgery - July 23, 2017 Category: Neurosurgery Authors: Roberts, M., Nickele, C., Welch, B., Ban, V., Ringer, A., Kim, L., Levitt, M., Lanzino, G., Kan, P., Shallwani, H., Siddiqui, A., Elijovich, L., Arthur, A. Tags: Electronic Poster Abstracts Source Type: research

E-055 Intracranial angioplasty and stenting with neuroform atlas stent
The SAMMPRIS Trial showed that medical treatment of intracranial stenosis is safer than intracranial angioplasty and stenting (IAS). One of the reasons for the worse outcome with IAS was the occurrence of ipsilateral cerebral hemorrhage, which may be associated with an intracranial exchange maneuver. Newly developed mini intracranial stents may enhance the safety of IAS by obviating the need for this maneuver. We retrospectively evaluated 7 intracranial stenoses (6 patients, 5 men, mean age 57) which were treated with an Atlas stent. In 5 cases there was a high-grade atherosclerotic stenosis which did not optimally respond...
Source: Journal of NeuroInterventional Surgery - July 23, 2017 Category: Neurosurgery Authors: Cay, F., Senturk, Y., Peker, A., Arsava, E., Topcuoglu, M., Arat, A. Tags: Electronic Poster Abstracts Source Type: research

MRI audit of complications in intracranial stenosis treated with Wingspan device
Conclusions ICAS treated by Wingspan stenting using pre-placement balloon angioplasty appears safe and effective with a high technical success rate and favorable outcomes. There is a high incidence of asymptomatic DWI hyperintensites post-procedure, but these do not appear to result in long-term sequelae.
Source: Journal of NeuroInterventional Surgery - April 13, 2017 Category: Neurosurgery Authors: Yeo, L. L. L., Wu, Y. M., Chen, Y. L., Yeh, C. H., Lee, T. H., Wong, H. F. Tags: Ischemic stroke Source Type: research

E-020 Between a Rock and a Hard Place: The Use of Self-expanding Stents for the Endovascular Treatment of Acute Ischemic Stroke due to Recalcitrant Emergency Large Vessel Occlusion in the Era of Stent-retrievers: Single-center Experience and Early Results
ConclusionInitial results suggest that acute intracranial stenting may be beneficial in a subset of patients who present with an ELVO and who have failed recanalization by means of mechanical thrombectomy with stent-retrievers and/or thromboaspiration with large bore intracranial catheters.DisclosuresJ. Lozano: None. M. Howk: None. A. Kuhn: None. F. Massari: None. K. de Macedo Rodrigues: None. C. Brooks: None. M. Perras: None. M. Gounis: 1; C; NIH, Medtronic Neurovascular, Microvention/Terumo, Cerevasc LLC, Gentuity, Codman Neurovascular, Phillips Healthcare, Stryker Neurovascular, Tay Sachs Foundation, InNeuroCo Inc. 2; C...
Source: Journal of NeuroInterventional Surgery - July 28, 2016 Category: Neurosurgery Authors: Lozano, J., Howk, M., Kuhn, A., Massari, F., de Macedo Rodrigues, K., Brooks, C., Perras, M., Gounis, M., Rex, D., Wakhloo, A., Puri, A. Tags: Electronic poster abstracts Source Type: research

P-013 Use of the Solitaire Device for Emergency Revascularization of the Superior Mesenteric Artery
ConclusionsThe techniques and equipment used for acute stroke intervention may be suitable for acute recanalization of peripheral vessels, under the right circumstances. As with many surgical interventions, a multidisciplinary approach may at times yield a novel and effective strategy for a difficult clinical problem.DisclosuresJ. Dalfino: None. A. Paul: None. J. Hnath: None.
Source: Journal of NeuroInterventional Surgery - July 28, 2016 Category: Neurosurgery Authors: Dalfino, J., Paul, A., Hnath, J. Tags: Oral poster abstracts Source Type: research

Solitaire stents for the treatment of complex symptomatic intracranial stenosis after antithrombotic failure: safety and efficacy evaluation
Conclusions This is the first case series study of ICAS treated by Solitaire stent placement. Deployment of a Solitaire stent with balloon angioplasty in the treatment of complex severe intracranial stenosis appears safe and effective, with a high technical success rate, relatively low periprocedural complication rate, and favorable outcome during follow-up.
Source: Journal of NeuroInterventional Surgery - June 13, 2016 Category: Neurosurgery Authors: Duan, G., Feng, Z., Zhang, L., Zhang, P., Chen, L., Hong, B., Xu, Y., Zhao, W., Liu, J., Huang, Q. Tags: Ischemic stroke Source Type: research

Experience with vertebral artery origin stenting and ostium dilatation: results of treatment and clinical outcomes
Conclusions Safety and feasibility were demonstrated using the Ostial Flash system for VAO stenting and angioplasty. No permanent perioperative complications were seen.
Source: Journal of NeuroInterventional Surgery - April 13, 2016 Category: Neurosurgery Authors: Rangel-Castilla, L., Gandhi, S., Munich, S. A., Cress, M. C., Sonig, A., Krishna, C., Hopkins, L. N., Snyder, K. V., Levy, E. I., Siddiqui, A. H. Tags: Ischemic stroke Source Type: research

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