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E-084 proximal versus distal occlusions in the posterior circulation: acute stroke etiology in endovascular therapy
ConclusionsWhile clinically devastating, posterior circulation stroke, may have favorable outcomes if endovascular strategies are targeted to arterial occlusion etiology.DisclosuresM. Nour: None. S. Tateshima: 2; C; Reverse Medical, Stryker Neurovascular, Silkroad Medical, Blockade Medical. G. Duckwiler: 2; C; Sequent Medical, Asahi Medical. R. Jahan: 2; C; Covidien, Medina. N. Gonzalez: None. V. Szeder: None. L. Ai: None. J. Saver: 6; C; Dr. Saver is an employee of the University of California. The University of California, Regents receive funding for Dr. Saver’s services as a scientific consultant. D. Liebeskind: 2...
Source: Journal of NeuroInterventional Surgery - July 26, 2015 Category: Neurosurgery Authors: Nour, M., Tateshima, S., Duckwiler, G., Jahan, R., Gonzalez, N., Szeder, V., Ai, L., Saver, J., Liebeskind, D. Tags: SNIS 12th Annual Meeting Electronic Poster Abstracts Source Type: research

E-088 successful mechanical thrombectomy for basilar artery stroke in a 22-month old child
We present the case of a 22-month-old with basilar artery occlusion successfully treated with mechanical thrombectomy.The patient presented to the emergency department with altered mental status and gait ataxia. She "felt limp", her breathing was shallow, and her gaze dysconjugate. Her medical history included congenital heart defects with multiple cardiac procedures.In the emergency department, she fell with attempted ambulation. Labs were normal, as was a chest x-ray, and EKG. A computerized tomography (CT) scan of the head suggested left cerebellar hemisphere attenuation. The differential included arrhythmia, stroke, or...
Source: Journal of NeuroInterventional Surgery - July 26, 2015 Category: Neurosurgery Authors: Roark, C., Savastano, L., Wilkinson, D., Shastri, R., Vadlamudi, V., Chaudhary, N., Pandey, A., Gemmete, J. Tags: SNIS 12th Annual Meeting Electronic Poster Abstracts Source Type: research

E-093 first pass direct aspiration using intermediate catheters in acute major vessel occlusion stroke
ConclusionIntermediate catheters allow fast, safe, simple and effective recanalization in acute ischemic stroke by utilizing the latest generation of large bore aspiration catheters with encouraging angiographic outcomes. We do not see direct aspiration substituting or excluding the use of stent retrievers, but they can be an initial fast and safe first attempt to recanalize the vessel.DisclosuresM. Dumba: None. A. Carlton-Jones: None. A. Kar: None. M. Patel: None. K. Lobotesis: None.
Source: Journal of NeuroInterventional Surgery - July 26, 2015 Category: Neurosurgery Authors: Dumba, M., Carlton-Jones, A., Kar, A., Patel, M., Lobotesis, K. Tags: SNIS 12th Annual Meeting Electronic Poster Abstracts Source Type: research

E-057 Process Improvement in Door-to-Groin Puncture Times at a Comprehensive Stroke Center Shows a Trend Towards Reduced Mortality at 90 Days
ConclusionOur systematic process improvement initiative significantly reduced door-to-groin puncture times and showed a trend towards reduced mortality at 90 days. A multidisciplinary approach and ensuring hospital system investment are key to an effective process.DisclosuresY. Kayan: 2; C; Medtronic, Penumbra. J. Delgado Almandoz: 2; C; Medtronic, Penumbra. M. Young: None. J. Fease: None. J. Scholz: None. A. Milner: None. T. Hehr: None. M. Mulder: None. P. Roohani: None. R. Tarrel: None.
Source: Journal of NeuroInterventional Surgery - July 28, 2016 Category: Neurosurgery Authors: Kayan, Y., Delgado Almandoz, J., Young, M., Fease, J., Scholz, J., Milner, A., Hehr, T., Mulder, M., Roohani, P., Tarrel, R. Tags: Electronic poster abstracts Source Type: research

Clinical diffusion mismatch better discriminates infarct growth than mean transit time-diffusion weighted imaging mismatch in patients with middle cerebral artery-M1 occlusion and limited infarct core
Conclusions CDM is the most powerful predictor of infarct growth in patients with MCA-M1 occlusion and small infarct core. Most of these patients will have a significant oligemic MTT lesion regardless of admission NIHSS score.
Source: Journal of NeuroInterventional Surgery - January 12, 2017 Category: Neurosurgery Authors: Nogueira, R. G., Kemmling, A., Souza, L. M., Payabvash, S., Hirsch, J. A., Yoo, A. J., Lev, M. H. Tags: Ischemic stroke Source Type: research

O-004 A multicenter study evaluating the frequency and burden of mechanical thrombectomy on stroke centers
Conclusion This is the first study to quantify the time requirement of mechanical thrombectomy and the call burden on neurointerventional physicians at stroke centers. Over a three month period at 10 stroke centers across the United States, mechanical thrombectomy procedures occurred once every 5 days on average, although nearly 60% occurred during non-work hours. As ELVO awareness increases, thrombectomy call has important operational implications for hospitals implementing stroke call coverage. Abstract O-004 Figure 1 Disclosures T. Wilson: None. T. Kim: None. C. Frey: None. A. Spiotta: None. R. de Leacy: None. J. M...
Source: Journal of NeuroInterventional Surgery - July 23, 2017 Category: Neurosurgery Authors: Wilson, T., Kim, T., Frey, C., Spiotta, A., Leacy, R. d., Mocco, J., Albuquerque, F., Ducruet, A., Cheema, A., Arthur, A., Srinivasan, V., Kan, P., Mokin, M., Dumont, T., Rai, A., Leslie-Mazwi, T., Hirsch, J., Singh, J., Singh, J., Wolfe, S., Fargen, K. Tags: Oral Abstracts Source Type: research

E-005 Preliminary results of the SUMMIT NZ ischemic stroke trial: MonoPoint(R) embolectomy featuring a novel 088 aspiration catheter and specialized delivery catheter
ConclusionsPreliminary findings suggest that first-line aspiration embolectomy using a novel MonoPoint® system including an 0.088" inner diameter aspiration catheter achieves a high rate of arterial revascularization with an acceptable safety profile. A full report on enrollment and results are to be presented.Disclosures S. Brew: 1; C; Route 92 Medical. 2; C; Route 92 Medical, Microvention. B. McGuinness: 1; C; Route 92 Medical. 2; C; Route 92 Medical. J. Caldwell: 1; C; Route 92 Medical. 2; C; Route 92 Medical. S. Lee: 1; C; Route 92 Medical. P. Barber: None. A. Holden: 2; C; Medtronic, Gore, Boston Scientific. T. Wu...
Source: Journal of NeuroInterventional Surgery - July 26, 2021 Category: Neurosurgery Authors: Brew, S., McGuinness, B., Caldwell, J., Lee, S., Barber, P., Holden, A., Wu, T., Krauss, M., Laing, A., Collecutt, W., Liebeskind, D., Hetts, S. Tags: Electronic poster abstracts Source Type: research

High-resolution CT with arch/neck/head CT angiography on a mobile stroke unit
Conclusions MSU use of advanced imaging including multiphasic head/neck CTA is feasible, offers high LVO yield and enables full ED bypass.
Source: Journal of NeuroInterventional Surgery - May 13, 2022 Category: Neurosurgery Authors: Alexandrov, A. W., Arthur, A. S., Bryndziar, T., Swatzell, V. M., Dusenbury, W., Hardage, K., McCormick, S., Rhudy, J. P., Maleki, A. H. Z., Singh, S., Krishnaiah, B., Nearing, K., Rubin, M. N., Malkoff, M. D., McKendry, C., Metter, E. J., Alexandrov, A. Tags: Neuroimaging Source Type: research

Development of a machine learning-based real-time location system to streamline acute endovascular intervention in acute stroke: a proof-of-concept study
Conclusions ML-based RTLS technology using WiFi fingerprinting has the potential to streamline delivery of acute stroke endovascular intervention by efficiently tracking patient and staff movement during stroke calls.
Source: Journal of NeuroInterventional Surgery - July 14, 2022 Category: Neurosurgery Authors: Lim, D. Z., Yeo, M., Dahan, A., Tahayori, B., Kok, H. K., Abbasi-Rad, M., Maingard, J., Kutaiba, N., Russell, J., Thijs, V., Jhamb, A., Chandra, R. V., Brooks, M., Barras, C., Asadi, H. Tags: Vascular neurology Source Type: research

O-042 Incidence of periprocedural stroke with radial access for diagnostic cerebral angiograms
ConclusionIn our experience, transradial access for diagnostic cerebral angiograms was associated with a low but not neglectable incidence of periprocedural strokes when compared to the traditional femoral approach. Patient vascular anatomy should be evaluated prior to selection of vascular access and patients should be made aware of the possibility of a slightly higher possibility of periprocedural stroke with transradial access.Abstract O-042 Table 1 Patient Age Access Vessels catheterized Catheter used Radial Medication Contrast Fluoro Time Platelet Count INR GFR COVID Status Stroke Symptoms NIHSS Imaging performed 1 5...
Source: Journal of NeuroInterventional Surgery - July 23, 2022 Category: Neurosurgery Authors: Kuhn, A., Singh, J., de Macedo Rodrigues, K., Massari, F., Puri, A. Tags: SNIS 19th annual meeting oral abstracts Source Type: research

O17 Profile of intracranial artery calcifications and effect on endovascular stroke treatment
ConclusionsIntracranial arterial calcifications within the symptomatic vessel are associated with worse angiographic and functional outcomes. Identification of symptomatic-IAC on baseline imaging may predict need of intracranial stenting and determine their optimal endovascular treatment strategy.ReferencesMaurer CJ, et al. Endovascular Thrombectomy of Calcified Emboli in Acute Ischemic Stroke: A Multicenter Study. AJNR. 2020 Mar;41(3):464–468.Johnson S, Mccarthy R, Fahy B, et al. Development of an in vitro Model of Calcified Cerebral Emboli in Acute Ischemic Stroke for Mechanical Thrombectomy Evaluation. J Neurointe...
Source: Journal of NeuroInterventional Surgery - August 29, 2022 Category: Neurosurgery Authors: Rodrigo-Gisbert, M., Requena, M., Rubiera, M., Lozano, P., De Dios Lascuevas, M., Garcia-Tornel, A., Olive-Gadea, M., Boned, S., Muchada, M., Rodriguez-Villatoro, N., Rodriguez-Luna, D., Juega, J., Pagola, J., Pinana, C., Hernandez, D., Molina, C., Tomase Tags: 14th Congress of the European Society of Minimally Invasive Neurological Therapy 2022 Meeting Abstracts Source Type: research

AI software detection of large vessel occlusion stroke on CT angiography: a real-world prospective diagnostic test accuracy study
Conclusions These accuracy metrics support Viz LVO as a useful adjunct tool in stroke diagnostics. Fast and accurate diagnosis with high negative predictive value mitigates missing potentially salvageable patients.
Source: Journal of NeuroInterventional Surgery - December 14, 2022 Category: Neurosurgery Authors: Matsoukas, S., Morey, J., Lock, G., Chada, D., Shigematsu, T., Marayati, N. F., Delman, B. N., Doshi, A., Majidi, S., De Leacy, R., Kellner, C. P., Fifi, J. T. Tags: New devices New devices and techniques Source Type: research

Prediction of 90 day home time among patients with low baseline ASPECTS undergoing endovascular thrombectomy: results from Albertas Provincial Stroke Registry (QuICR)
Conclusions Patients with low ASPECTS who are selected for EVT using demographic and clinical profiles similar to higher ASPECTS patients achieved comparable outcomes.
Source: Journal of NeuroInterventional Surgery - July 14, 2023 Category: Neurosurgery Authors: Singh, N., Holodinsky, J. K., Kashani, N., McDonough, R. V., Bala, F., Horn, M., Stang, J., Demchuk, A. M., Hill, M. D., Almekhlafi, M. A. Tags: Vascular neurology Source Type: research

E-012 Reasons for choosing nondominant vertebral artery as an access route in hyperacute vertebrobasilar ischemic stroke
ConclusionsUndoubtedly, the fastest treatment is best through the dominant VA. Nondominant VA may be another option in situations where it is accessible, stable, or less risky despite nonvisualized VA in angiogram.Disclosures G. Lee: None. C. Yang: None. C. Kang: None. J. Kim: None. J. Joo: None. Y. Chung: None. J. Huh: None. J. Rhim: None.
Source: Journal of NeuroInterventional Surgery - July 30, 2023 Category: Neurosurgery Authors: Lee, G., Yang, C., Kang, C., Kim, J., Joo, J., Chung, Y., Huh, J., Rhim, J. Tags: SNIS 20th annual meeting electronic poster abstracts Source Type: research

E-070 Acute Recanalization with Stenting for Wake-up Stroke
Conclusion Emergent stenting can be feasible and possibly safe for achieving successful recanalization and improving on the NIHSS in patients with WUS. However, clinical outcome was still not satisfactory. Disclosures S. Sung: None. T. Lee: None.
Source: Journal of NeuroInterventional Surgery - July 26, 2014 Category: Neurosurgery Authors: Sung, S., Lee, T. Tags: Electronic poster abstracts Source Type: research

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