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P-005 Predictors for large vessel recanalization before stroke thrombectomy
ConclusionsIVT at least 1.5 hours before angiography, site of vascular occlusion, atrial fibrillation, and hyperlipidemia are independent predictors for LVR. The 8-point Recan score proposed in this study may be a valuable tool for predicting LVR before EVT.Abstract P-005 Figure 1Disclosures H. Chen: None. M. Colasurdo: None. C. Schrier: None. M. Khalid: None. M. Khunte: None. T. Miller: None. J. Cherian: None. A. Malhotra: None. D. Gandhi: 1; C; National Institutes of Health, Focused Ultrasound Foundation, MicroVention, University of Calgary, University of Maryland Medical Center.
Source: Journal of NeuroInterventional Surgery - July 30, 2023 Category: Neurosurgery Authors: Chen, H., Colasurdo, M., Schrier, C., Khalid, M., Khunte, M., Miller, T., Cherian, J., Malhotra, A., Gandhi, D. Tags: SNIS 20th annual meeting oral poster abstracts Source Type: research

P-024 Diffuse correlation spectroscopy in acute ischemic stroke neurointerventional procedures; initial experience and preliminary results
ConclusionsWe showed the feasibility of this non-invasive approach in providing continuous measurement of regional CBF brain tissue properties. In the future, implementations of more robust DCS instruments such as our recently developed pathlength-resolved DCS device could alleviate the limitations of the current DCS technology discovered during this study.Abstract P-024 Figure 1Disclosures M. Mokin: 1; C; NIH NINDS. 2; C; Cerenovus, Medtronic. 4; C; Bendit Technologies, Borvo medical, BrainQ, Endostream, Serenity medical, Synchron, Sim&Cure, QAS.AI, Quantanosis.AI. S. Thanki: None. P. Mohammad: None. S. Sheehy: None. ...
Source: Journal of NeuroInterventional Surgery - July 30, 2023 Category: Neurosurgery Authors: Mokin, M., Thanki, S., Mohammad, P., Sheehy, S., Jones, K., Peto, I., Guerrero, W., Vakharia, K., Burgin, W., Parthasarathy, A. Tags: SNIS 20th annual meeting oral poster abstracts Source Type: research

P005/44 Using the pEGASUS-stent with antithrombogenic properties and single antiplatelet therapy in a case of thrombectomy
IntroductionRescue stenting is used more and more in stroke cases with large-vessel-occlusion or medium-vessel-occlusion refractory to mechanical thrombectomy. The pEGASUS-stent(Phenox) represents a device which is equipped with a hydrophilic polymer coating(HPC) with antithrombogenic properties. The coating allows for implantation under single antiplatelet therapy, thus possibly reducing the risk of bleeding in acute stroke cases.Case HistoryA 79-year-old woman was rushed to emergency room due to left-sided hemiparesis and National-Institutes-of-Health-Stroke-Scale(NIHSS) of 14. Computed-tomography-image showed an occlusi...
Source: Journal of NeuroInterventional Surgery - August 21, 2023 Category: Neurosurgery Authors: Krug, N., Schulze-Zachau, V., Ntoulias, N., Psychogios, M. Tags: 4.3 CASE PROPOSAL - Acute ischemic stroke Source Type: research

P144/77 Effect of balloon guiding catheter for endovascular treatment of acute ischemic stroke using aspiration catheter: A retrospective propensity matched analysis
ConclusionCombined use of BGC and aspiration catheter during thrombectomy may be effective in patients with anterior LVO.Disclosure of Interestnothing to disclose
Source: Journal of NeuroInterventional Surgery - August 21, 2023 Category: Neurosurgery Authors: Jung, W. S., Lim, Y. C., Choi, J. W. Tags: 2.3 ISCHEMIC - Treatment Source Type: research

P160/223 Acute stroke with treatment of tandem lesions under triple antiplatelet therapy: procedural saftey, stent patency and outcome at 90 days
ConclusionTL treatment under triple AP was safe in our experience, resulting in a low rate of restenosis and with favorable outcome in 92%. The influence of comorbidities on restenosis could be negligible within the described follow-up period.Disclosure of InterestPhilipp von Gottberg: Nothing to disclose.Ali Khanafer: Nothing to discloseVictoria Hellstern: Proctering for phenox GmbH.Alexandru Cimpocca: Nothing to disclose.Hans Henkes: Proctoring for phenox GmbH, Co-Founder and Co-Owner of CONTARA GmbH
Source: Journal of NeuroInterventional Surgery - August 21, 2023 Category: Neurosurgery Authors: Philipp, V. G., Khanafer, A., Hellstern, V., Cimpoca, A., Bäzner, H., Henkes, H. Tags: 2.3 ISCHEMIC - Treatment Source Type: research

O-006 Analysis of Screened Patients from the Penumbra THERAPY Trial: Correlations of Clot Length Assessed by Thin-Section CT in a Sequential Series of Acute Stroke Patients
Conclusion This analysis further supports the idea of measuring hyperdense thrombus by use of thin-section NCCT. Occlusion site is a key predictor of clot length, which may explain the relative ineffectiveness of IV rtPA in more proximal anterior circulation large vessels. These findings suggest a sizeable population who may benefit from a bridging approach. Disclosures D. Frei: 3; C; Penumbra Inc. 4; C; Penumbra Inc. D. Heck: None. A. Yoo: 1; C; National Institutes of Health, Penumbra Inc., Remedy Pharmaceuticals. D. Loy: None. H. Buell: 5; C; Penumbra Inc. S. Kamalian: 1; C; GE Healthcare, Department of Defense, CIMIT. ...
Source: Journal of NeuroInterventional Surgery - July 26, 2014 Category: Neurosurgery Authors: Frei, D., Heck, D., Yoo, A., Loy, D., Buell, H., Kamalian, S., Morais, L., Bitner, A., Meyer, D., Kuo, S., Bose, A., Sit, S. Tags: Oral abstracts Source Type: research

O-034 Carotid Artery Angioplasty versus Stenting in Acute Ischemic Stroke
Conclusions This data suggest that patients undergoing angioplasty alone in the setting of acute internal carotid artery occlusion may have improved functional outcome at 90-day compared to those undergoing stenting. This study was limited by a small sample size and a larger study would be needed to confirm these findings. Keywords angioplasty, stenting, acute ischemic stroke, carotid occlusion. Disclosures O. Choudhri: None. M. Gupta: None. A. Feroze: None. G. Albers: None. M. Lansberg: None. H. Do: None. R. Dodd: None. M. Marcellus: None. M. Marks: None.
Source: Journal of NeuroInterventional Surgery - July 26, 2014 Category: Neurosurgery Authors: Choudhri, O., Gupta, M., Feroze, A., Albers, G., Lansberg, M., Do, H., Dodd, R., Marcellus, M., Marks, M. Tags: Oral abstracts Source Type: research

P-017 M2 Occlusions as a Target for Endovascular Therapy: Comprehensive Analysis of Diffusion/Perfusion MRI, Angiography, and Clinical Outcomes
Conclusion In patients undergoing ERT compared to those with M1 occlusions, patients with M2 occlusions presented with smaller infarcts and developed less haemorrhage. In patients with M2 occlusions, successful reperfusion with ERT was associated with smaller final infarcts, decreased infarct expansion, and improved clinical outcomes. IV tPA was not sufficient in recanalizing many M2 occlusions. Patients with M2 occlusions benefit from ERT when tPA cannot be given or has failed to recanalise the vessel. Disclosures S. Sheth: None. J. Saver: None. R. Jahan: None. S. Starkman: None. G. Duckwiler: None. S. Tateshima: None. N...
Source: Journal of NeuroInterventional Surgery - July 26, 2014 Category: Neurosurgery Authors: Sheth, S., Saver, J., Jahan, R., Starkman, S., Duckwiler, G., Tateshima, S., Gonzalez, N., Liebeskind, D., Stroke Investigators, U. Tags: Oral poster abstracts Source Type: research

E-011 TICI Quantified: Automated Cerebral Revascularization Grading in Acute Ischemic Stroke
Conclusion The qTICI Grading Software once developed will have the potential to revolutionise the way clinicians and interventionalists grade revascularization post AIS endovascular therapy. The clinical implications of establishing automatized and quantified revascularization scale is critical in improving treatment safety and efficacy. Disclosures A. Sattar: None. K. Asif: None. M. Teleb: None. A. Castonguay: None. M. Issa: None. O. Zaidat: None.
Source: Journal of NeuroInterventional Surgery - July 26, 2014 Category: Neurosurgery Authors: Sattar, A., Asif, K., Teleb, M., Castonguay, A., Issa, M., Zaidat, O. Tags: Electronic poster abstracts Source Type: research

E-031 Treatment of Acute Ischemic Stroke Due to Thrombosis of Stenotic Atherosclerotic Lesions of the Posterior Circulation
Conclusion Endovascular treatment can be performed with high rates of technical success for AIS due to thrombosis at chronic atherosclerotic lesions. In spite of potential for poor outcomes, significant recovery of function is possible following treatment. Further evaluation is warranted to identify those patients most likely to respond to such intervention. Disclosures M. Alexander: None. J. Rebhun: None. S. Hetts: 1; C; Stryker Neurovascular. 6; C; Stryker Neurovascular, statistical support services. D. Cooke: None.
Source: Journal of NeuroInterventional Surgery - July 26, 2014 Category: Neurosurgery Authors: Alexander, M., Rebhun, J., Hetts, S., Cooke, D. Tags: Electronic poster abstracts Source Type: research

A prospective, multicenter pilot study investigating the utility of flat detector derived parenchymal blood volume maps to estimate cerebral blood volume in stroke patients
Conclusions PBV maps can be generated using FP systems. The average radiation dose is similar to a standard CTP examination. PBV maps have a high sensitivity for detecting CBV deficits defined by conventional CTP. PBV maps often overestimate the size of CBV deficits. We hypothesize that the FP protocol initiates PBV imaging prior to complete saturation of the blood volume in areas perfused via indirect pathways (ie, leptomeningeal collaterals), resulting in an overestimation of CBV deficits, particularly in the setting of large vessel occlusion.
Source: Journal of NeuroInterventional Surgery - June 28, 2014 Category: Neurosurgery Authors: Fiorella, D., Turk, A., Chaudry, I., Turner, R., Dunkin, J., Roque, C., Sarmiento, M., Deuerling-Zheng, Y., Denice, C. M., Baumeister, M., Parker, A. T., Woo, H. H. Tags: Open access, Editor''s choice, Neuroimaging Source Type: research

P-015 flow stasis after the deployment of stent-retriever predicts successful final recanalization in acute stroke patients
ConclusionLoss of IFR effect during the embedding time after deployment of stent retriever was associated with successful recanalization. It may be an angiographic sign of adequate thrombus engagement with the stent retriever. This observation may be useful in order to optimize the embedding time during which a stent retriever cuts into the occlusive thrombus particularly when a new stent retriever is introduced to the clinical practice.DisclosuresS. Tateshima: 2; C; Covidien. M. Okawa: None. D. Liebeskind: None. R. Jahan: 2; C; Covidien. N. Gonzalez: None. V. Szeder: None. N. Rao: None. L. Ali: None. D. Kim: None. J. Save...
Source: Journal of NeuroInterventional Surgery - July 26, 2015 Category: Neurosurgery Authors: Tateshima, S., Okawa, M., Liebeskind, D., Jahan, R., Gonzalez, N., Szeder, V., Rao, N., Ali, L., Kim, D., Saver, J., Duckwiler, G. Tags: SNIS 12th Annual Meeting Oral Poster Abstracts Source Type: research

E-071 initial experiences with the 5max ace 64 in the endovascular management of acute ischemic stroke
ConclusionIn our experience, this new version of the 5Max is very efficient in the aspiration of the thrombus. Due to its larger lumen, it’s more difficult to navigate over the smaller microcatheters through tortuous segments of the target vessels, especially the ophthalmic region of the ICA. Using the 3Max instead, the navigation gets easy, but it’s very difficult to get a roadmap or perform an angiogram through the ACE, due to the larger OD of the 3Max. Partially retrieving the 3Max, or preparing the roadmap while the 3Max is still in the proximal part of the ACE has solved this issue in our experience.Disclo...
Source: Journal of NeuroInterventional Surgery - July 26, 2015 Category: Neurosurgery Authors: Gal, G. Tags: SNIS 12th Annual Meeting Electronic Poster Abstracts Source Type: research

O-004 Analysis of M2 Occlusions within TREVO Acute Ischemic Stroke (TRACK) stent-retriever Thrombectomy Registry
ConclusionsPatients with M2 Occlusions are more likely to achieve complete recanalization from the first pass with Trevo stent retriever device than M1 occlusion. In addition, the M2 cohort had a numerically higher rate of good clinical outcome and less rate of mortality than M1 group. This substudy is limited by lack of a control M2 group without mechanical thrombectomy.DisclosuresA. Castonguay: None. R. Nogueira: None. J. English: None. S. Satti: None. H. Farid: None. E. Veznedaroglu: None. M. Binning: None. A. Puri: None. N. Vora: None. R. Budzik: None. G. Dabus: None. I. Linfante: None. V. Janardhan: None. A. Alshekhle...
Source: Journal of NeuroInterventional Surgery - July 28, 2016 Category: Neurosurgery Authors: Castonguay, A., Nogueira, R., English, J., Satti, S., Farid, H., Veznedaroglu, E., Binning, M., Puri, A., Vora, N., Budzik, R., Dabus, G., Linfante, I., Janardhan, V., Alshekhlee, A., Abraham, M., Edgell, R., Taqi, M., El Khoury, R., Mokin, M., Mokin, M., Tags: Oral abstracts Source Type: research

Final results of the US humanitarian device exemption study of the low-profile visualized intraluminal support (LVIS) device
Conclusions The LVIS device facilitated the coil embolization of wide-necked intracranial aneurysms with high rates of technical success, an excellent safety profile, and very high rates of complete and near-complete occlusion at follow-up. Trial registration number NCT01541254.
Source: Journal of NeuroInterventional Surgery - August 11, 2016 Category: Neurosurgery Authors: Fiorella, D., Arthur, A., Boulos, A., Diaz, O., Jabbour, P., Pride, L., Turk, A. S., Woo, H. H., Derdeyn, C., Millar, J., Clifton, A. Tags: Editor''s choice, Hemorrhagic stroke Source Type: research

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