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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

Initial experience with a new distal intermediate and aspiration catheter in the treatment of acute ischemic stroke: clinical safety and efficacy
Conclusions The SOFIA catheter is a safe and efficient catheter for endovascular stroke therapy.
Source: Journal of NeuroInterventional Surgery - June 13, 2016 Category: Neurosurgery Authors: Stampfl, S., Kabbasch, C., Müller, M., Mpotsaris, A., Brockmann, M., Liebig, T., Wiesmann, M., Bendszus, M., Möhlenbruch, M. A. Tags: New devices Source Type: research

E-039 Comparison of Medical Therapy vs. Intra-Arterial Therapy for Acute Vertebrobasilar Stroke
ConclusionCompared to medical trials in 2015, which demonstrate clinical benefit for IAT over medical therapy for acute ischemic stroke of the anterior circulation, the posterior circulation is less well studied. Important prognostic factors for stroke due to large vessel occlusion of posterior circulation include posterior ASPECTS score and infarct volume in the brainstem. In this small retrospective study, patients treated with IAT had greater stroke severity than the medical cohort, yet they had similar rates of good functional outcome. Parameters of this retrospective analysis may be used to improve triage and treatmen...
Source: Journal of NeuroInterventional Surgery - July 28, 2016 Category: Neurosurgery Authors: Raymond, S., Leslie-Mazwi, T., Rost, N., Schaefer, P., Hirsch, J., Gonzalez, R., Rabinov, J. 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

A standardized neurointerventional thrombectomy protocol leads to faster recanalization times
Conclusions Implementation of a standardized protocol resulted in a significant reduction in time to recanalization for patients with an ischemic stroke. A standardized IAT protocol decreases time to recanalization when team roles are clearly defined, tasks are processed in parallel, and procedures are standardized.
Source: Journal of NeuroInterventional Surgery - October 13, 2017 Category: Neurosurgery Authors: Frei, D., McGraw, C., McCarthy, K., Whaley, M., Bellon, R. J., Loy, D., Wagner, J., Orlando, A., Bar-Or, D. Tags: Editor''s choice, Ischemic stroke Source Type: research

O-001 Predictors of false-positive stroke thrombectomy transfers
Conclusions Clinical scales appear to overdiagnose LVO and may be responsible for the majority of our transfers not undergoing thrombectomy. Primary stroke centers have reason to develop the capability to rapidly acquire and interpret a CTA in suspected LVO patients prior to transfer. Such efforts may reduce costs associated with unnecessary thrombectomy transfers. Abstract O-001 Table 3 Multivariate logistic regression variable OR (95% CI ) p-value Age>=80 1.82 (0.84–3.92) 0.13 NIHSS 1.09 (1.03–1.15) 0.004 IV tPA 0.79 (0.35–1.77) 0.57 Helicopter 0.29 (0.14–0.61) 0.001 Telestroke video used 1....
Source: Journal of NeuroInterventional Surgery - July 23, 2017 Category: Neurosurgery Authors: Yi, J., Zielinski, D., Ouyang, B., Chen, M. Tags: Oral Abstracts 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

Prediction of death after endovascular thrombectomy in the extended window: a secondary analysis of DEFUSE 3 "
Conclusions Despite selective inclusion criteria and overwhelming benefit for EVT, a substantial number of EVT patients in DEFUSE 3 died. The preprocedural variables age, NIHSS, wake-up stroke, and diabetes may predict this risk. Our predictive score provides a basis for future research to determine which factors influence lethal outcome after EVT.
Source: Journal of NeuroInterventional Surgery - August 13, 2021 Category: Neurosurgery Authors: Taussky, P., Agnoletto, G., Grandhi, R., Alexander, M. D., Wong, K.-H., Albers, G. W., de Havenon, A. Tags: Ischemic stroke Source Type: research

EP55 Keep it simple: the SNACE (Sofia non-wire aspiration contrast enhancement) technique for the endovascular management of acute ischemic stroke
We report a prospectively collected clinical experience with a simple technique: SNACE (Sofia Non-wire Aspiration Contrast Enhancement) as the primary method for vessel recanalization.Methods38 prospective patients with ELVO at four institutions were included in the study. The SNACE technique was utilized in all patients. Procedural and clinical data were analyzed.ResultsThe SNACE approach using SOFIA 6 Plus Catheter was successful in achieving Thrombolysis in Cerebral Infarction (TICI) 2b or 3 revascularizations in 88% of cases. The first Pass effect was obtained in 75%. The average time from groin puncture to at least TI...
Source: Journal of NeuroInterventional Surgery - August 24, 2021 Category: Neurosurgery Authors: Pabon, B., Torres, V., Mejia, J., Patino, M., Vargas, O., Serna, N., Pelaez, J. Tags: Treatment Source Type: research

P-033 Disparities in stroke: associating patient-level demographic factors with loss of follow-up
ConclusionsRace, discharge mRS, median income based on zip codes, and health insurance coverage are potential determinants of whether an ischemic stroke patient who underwent thrombectomy would comply with a 90-day follow-up.Disclosures A. Nguyen: None. G. M. Cortez: None. M. Baretta: None. A. Aghaebrahim: None. E. Sauvageau: None. R. Hanel: None.
Source: Journal of NeuroInterventional Surgery - July 26, 2021 Category: Neurosurgery Authors: Nguyen, A., Cortez, G., Baretta, M., Aghaebrahim, A., Sauvageau, E., Hanel, R. Tags: Oral poster abstracts Source Type: research

E-006 Feasibility and safety of mechanical thrombectomy in stroke patients presenting with distal ACA occlusions - insights from star
ConclusionIn this multicenter study, MT for distal ACA occlusions in the A2/A3 segments seem to be feasible and associated with low complication and symptomatic hemorrhage rates. Future studies are needed to compare the functional outcome of MT versus medical management for stroke patients presenting with A2/A3 occlusions.Disclosures D. Pullmann: None. E. Almallouhi: None. S. Al Kasab: None. A. Alawieh: None. R. Chalhoub: None. R. Starke: None. R. De Leacy: None. D. Raper: None. A. Rai: None. T. Dumont: None. S. Wolfe: None. P. Jabbour: None. C. Ogilvy: None. M. Park: None. M. Levitt: None. A. Polifka: None. R. Crowley: No...
Source: Journal of NeuroInterventional Surgery - July 26, 2021 Category: Neurosurgery Authors: Pullmann, D., Almallouhi, E., Al Kasab, S., Alawieh, A., Chalhoub, R., Starke, R., De Leacy, R., Raper, D., Rai, A., Dumont, T., Wolfe, S., Jabbour, P., Ogilvy, C., Park, M., Levitt, M., Polifka, A., Crowley, R., Arthur, A., Osbun, J., Crosa, R., Maier, I Tags: Electronic poster abstracts Source Type: research

E-067 Importance of First Pass Reperfusion in Endovascular Stroke Care - Insights from STAR
ConclusionThis analysis of a large, multi-center stroke database confirms the importance of first pass reperfusion in endovascular stroke care.Disclosures I. Maier: None. M. Psychogios: None. J. Liman: None. S. Al Kasab: None. E. Almallouhi: None. A. Alawieh: None. S. Wolfe: None. K. Fargen: None. A. Arthur: None. N. Goyal: None. T. Dumont: None. P. Kan: None. J. Kin: None. R. De Leacy: None. J. Osbun: None. A. Rai: None. P. Jabbour: None. J. Grossberg: None. M. Park: None. R. Starke: None. R. Crosa: None. A. Spiotta: None. D. Behme: None.
Source: Journal of NeuroInterventional Surgery - July 26, 2021 Category: Neurosurgery Authors: Maier, I., Psychogios, M., Liman, J., Al Kasab, S., Almallouhi, E., Alawieh, A., Wolfe, S., Fargen, K., Arthur, A., Goyal, N., Dumont, T., Kan, P., Kin, J., De Leacy, R., Osbun, J., Rai, A., Jabbour, P., Grossberg, J., Park, M., Starke, R., Crosa, R., Spi Tags: Electronic poster abstracts Source Type: research

Performance of the vision, aphasia, neglect (VAN) assessment within a single large EMS system
Conclusions Among suspected stroke patients, we found modest sensitivity and specificity of VAN to detect LVO for both EMS and ED providers. Moreover, the low PPV in our study suggests a significant number of patients with non-LVO ischemic stroke or ICH could be over-triaged with VAN.
Source: Journal of NeuroInterventional Surgery - March 18, 2022 Category: Neurosurgery Authors: Patel, M. D., Thompson, J., Cabanas, J. G., Williams, J. G., Lewis, E., Bachman, M., Al Masry, M., LaVigne, C., Morantes, L., Becske, T., Kass-Hout, O. Tags: Ischemic stroke 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

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