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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

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

P012/110 Flow diversion in a giant fusiform M2 aneurysm: very delayed parent vessel occlusion and post-thrombectomy re-in-stent thrombosis
ConclusionVery delayed in-stent thrombosis and subsequent parent vessel occlusion can occur after flow diversion procedures.Disclosure of InterestAK: Nothing to discloseMB: Consultant for Microvention, Cerenovus, Acandis, and RapidJF: The Co-author reports personal fees from Consultant for Acandis, Cerenovus, Medtronic, Microvention, Phenox, Penumbra, Roche, Tonbridge outside of the submitted work. He is a member of the Executive Board of the scientific societies DGNR and the President of ESMINT and holds Stock in Vastrax LLC and Tegus.
Source: Journal of NeuroInterventional Surgery - August 21, 2023 Category: Neurosurgery Authors: Kyselyova, A. A., Fiehler, J., Bester, M. Tags: 4.3 CASE PROPOSAL - Acute ischemic stroke Source Type: research

O-042 Complications of DAPT cessation at 3 months versus 6 months after flow diversion of unruptured intracranial aneurysms
ConclusionsOnly 0.6% (n=1) of patients exhibited complications after 3 month follow-up. We conclude that DAPT duration of 3 months after endoluminal flow diversion of unruptured cerebral aneurysms of the anterior circulation is not associated with increased rates of hemorrhagic or thromboembolic complications compared to a traditional 6-month regimen.Disclosures S. Srinivasan: None. A. White: None. M. Al-Abdulkareem: None. J. Barr: None. L. Pride: None. J. White: None. R. Novakovic-White: None. R. Sillero: None. B. Welch: None.
Source: Journal of NeuroInterventional Surgery - July 30, 2023 Category: Neurosurgery Authors: Srinivasan, S., White, A., Al-Abdulkareem, M., Barr, J., Pride, L., White, J., Novakovic-White, R., Sillero, R., Welch, B. Tags: SNIS 20th annual meeting oral abstracts Source Type: research

E-033 Optimization of endovascular treatment for patients with acute carotid plaque rupture and free- floating thrombus by use of two overlapping closed-cell stents with different radial force
ConclusionUse of the Carotid Wallstent as the first stent to secure the free-floating thrombus allows save delivery of the Xact stent which then adds a second closed-cell mesh layer as well as the needed radial force to expand the stent construct. This approach may decrease if not eliminate the need for post-stent angioplasty in the acute setting thus decreasing risk of thromboembolic complication.Disclosures A. Kuhn: None. J. Singh: None. S. Sarid: None. M. Garcia: None. A. Puri: 1; C; NIH, Microvention, Cerenovus, Medtronic Neurovascular and Stryker Neurovascular. 2; C; Medtronic Neurovascular, Stryker NeurovascularBalt,...
Source: Journal of NeuroInterventional Surgery - July 30, 2023 Category: Neurosurgery Authors: Kuhn, A., Singh, J., Sarid, S., Garcia, M., Puri, A. Tags: SNIS 20th annual meeting electronic poster abstracts Source Type: research

Excessive platelet inhibition following Pipeline embolization of intracranial aneurysms
Conclusion Elevations in platelet inhibition were frequently observed following flow diversion with Pipeline.
Source: Journal of NeuroInterventional Surgery - July 14, 2023 Category: Neurosurgery Authors: Miller, T. R., Khunte, M., Caffes, N., Anders, M., Rock, P., Beitelshees, A. L., Malhotra, A., Cannarsa, G., Cherian, J., Simard, J. M., Jindal, G., Gandhi, D. Tags: Hemorrhagic stroke Source Type: research

Antithrombotic therapies for neurointerventional surgery: a 2021 French comprehensive national survey
Conclusion This nationwide survey highlights the important heterogeneity in clinical practices across centers. There is a pressing need for trials and guidelines to further evaluate and harmonize antithrombotic regimens in the neurointerventional field.
Source: Journal of NeuroInterventional Surgery - March 14, 2023 Category: Neurosurgery Authors: Caroff, J., Aubert, L., Lavenu-Bombled, C., Figueiredo, S., Habchi, K., Cortese, J., Eugene, F., Ognard, J., Tahon, F., Forestier, G., Ifergan, H., Zhu, F., Hak, J.-F., Reyre, A., Laubacher, M., Traore, A., Desilles, J. P., Derraz, I., Moreno, R., Bintner Tags: Standard Standards Source Type: research

O10 The necessity of monitoring platelet response and adjusting antiplatelet agents for endovascular treatment of unruptured intracranial aneurysms: a single-center, retrospective, cohort study
ConclusionActive monitoring and adjustment antiplatelet agents did not reduce ischemic complications in endovascular treatment; however, tended to reduce the ischemic complication, especially in flow diversion. Low-dose prasugrel may be feasible without increasing hemorrhage in the endovascular treatment of unruptured intracranial aneurysms.ReferencesLi W. Effect of Adjusted Antiplatelet Therapy on Preventing Ischemic Events after Stenting for Intracranial Aneurysms. Stroke. 2021 Dec;52(12):3815–3825. DOI: 10.1161/StrokeAHA.120.032989. EPUB 2021 SEP 20. PMID: 34538087.Hwang G. Standard vs Modified Antiplatelet Prepar...
Source: Journal of NeuroInterventional Surgery - August 29, 2022 Category: Neurosurgery Authors: Moon, E., Kwon, B., Song, Y., Lee, D., Park, J., Suh, D. Tags: 14th Congress of the European Society of Minimally Invasive Neurological Therapy 2022 Meeting Abstracts Source Type: research

P49 Intracranial stenting of atherosclerotic stenosis in patient suffering stroke by radial access
A 55-year-old man presented with acute stroke. The patient had left hemiparesis. Angiography revealed that the patient had intracarnial internal carotid artery atherosclerotic stenosis. Since both iliac arteries of the patient were occluded, we used radial access for the intervention. First of all, we performed angiography with sim 2 diagnostic catheter. We placed a 6Fr sheathed sheathless guide catheter into the common carotid artery with Amplatz rigid wire. We inserted the catheter sofia. We crossed the lesion with a microcatheter supported 0’14 inch guidewire and performed 2.0*20 mm coronary balloon dilatation. Fi...
Source: Journal of NeuroInterventional Surgery - August 29, 2022 Category: Neurosurgery Authors: Kilic, H. Tags: 14th Congress of the European Society of Minimally Invasive Neurological Therapy 2022 Meeting Abstracts Source Type: research

P90 Intracranial balloon-expandable stents as rescue treatment in acute stroke secondary to atherosclerotic stenotic vessel disease: 10-year single center experience
ConclusionsEmergency application of dual antiplatelet agents and balloon-expandable stents for treatment of acute stroke secondary to intracranial atherosclerotic stenotic disease exhibits a comparably high rate of early reocclusion and low rate of good clinical outcome.ReferencesStracke CP, Fiehler J, Meyer L, et al. Emergency intracranial stenting in acute stroke: predictors for poor outcome and for complications. J AM Heart Assoc. 2020;9(5):E012795. DOI:10.1161/JAHA.119.012795 Do you have any conflict of interest to declare?: No
Source: Journal of NeuroInterventional Surgery - August 29, 2022 Category: Neurosurgery Authors: Elsheikh, S., Elbaz, A., Taschner, C., Urbach, H., Niesen, W.-D. Tags: 14th Congress of the European Society of Minimally Invasive Neurological Therapy 2022 Meeting Abstracts Source Type: research

E-058 An alternative reduced dose regimen of ticagrelor for neuroendovascular patients
ConclusionA lower dose of ticagrelor (45 mg twice daily) appears to be a safe and effective in this small cohort of patients who are resistant to clopidogrel per P2Y12 testing and who have increased risk of ischemic or hemorrhagic strokes due to neurovascular pathologies and implants. Further randomized studies are required to confirm these findings.Disclosures S. Thind: None. R. Morsi: None. O. Kass-Hout: None. J. Stern: None. R. Tangonan: None. T. Kass-Hout: None. L. Guterman: None.
Source: Journal of NeuroInterventional Surgery - July 23, 2022 Category: Neurosurgery Authors: Thind, S., Morsi, R., Kass-Hout, O., Stern, J., Tangonan, R., Kass-Hout, T., Guterman, L. Tags: SNIS 19th annual meeting electronic poster abstracts Source Type: research

E-187 Pipeline embolization stent for treatment of giant supraclinoid aneurysms: a case series
ConclusionThe Pipeline embolization device is a novel technique that can be utilized for treatment of giant cerebrovascular aneurysms with emerging evidence of immediate and long-term success. Further patient enrollment and clinical trials will be required to assess its efficacy in comparison to other endovascular and surgical approaches for the treatment of giant aneurysms.Disclosures M. Fana: None. O. Alsrouji: None. M. Rehman: None.
Source: Journal of NeuroInterventional Surgery - July 23, 2022 Category: Neurosurgery Authors: Fana, M., Alsrouji, O., Rehman, M. Tags: SNIS 19th annual meeting electronic poster abstracts Source Type: research

O-052 The pennsylvania post-market multicenter experience with flow re-direction endoluminal device (FRED)
ConclusionThe results of the early post-market experience with the FRED device show reasonable safety and adequate aneurysmal occlusion rates comparable to other flow diverters. However, more extensive multicenter studies with more extended follow-up data are needed to assess the long-term safety and durability of the device.Abstract O-052 Table 1Baseline descriptive statistics Number of patients n=61 Gender Male 11 (18%) Female 50 (82%) Age (Years: median; IQR) 58 (51 – 68) Multiple Intracranial Aneurysms 21 (34.4%) Family history of aneurysms 9 (14.8%) Smoking History Never smokers 26 (42.6%) Past smokers 13 (21.3...
Source: Journal of NeuroInterventional Surgery - July 23, 2022 Category: Neurosurgery Authors: Salem, M., Kvint, S., Hendrix, P., Al Saiegh, F., Gajjar, A., Goren, O., Gross, B., Jabbour, P., Lang, M., Schirmer, C., Tjoumakaris, S., Griessenauer, C., Burkhardt, J. Tags: SNIS 19th annual meeting oral abstracts Source Type: research

E-248 Postpartum vertebral artery dissections: a report of 7 cases and literature review
ConclusionA limited cohort of 33 ppVADs exist in the literature. This study contributes 7 additional cases and suggests that, despite heterogenous management of ppVAD, the resulting outcomes were favorable.Disclosures V. Lazarov: None. A. Monteiro: None. F. Almayman: None. M. Waqas: None. J. Cappuzzo: None. E. Levy: None. A. Siddiqui: None.
Source: Journal of NeuroInterventional Surgery - July 23, 2022 Category: Neurosurgery Authors: Lazarov, V., Monteiro, A., Almayman, F., Waqas, M., Cappuzzo, J., Levy, E., Siddiqui, A. Tags: SNIS 19th annual meeting electronic poster abstracts Source Type: research

Omeprazole-clopidogrel interaction and neurovascular complications after flow-diverter device placement
Conclusion Omeprazole was associated with a significant increase in the mean P2Y12 reactivity level among patients with intracranial aneurysms treated with flow-diverting devices who received clopidogrel. However, receipt of omeprazole was not associated with an increased risk of ischemic events or stent stenosis. For neuroendovascular patients who are treated with a flow diverter while receiving clopidogrel, alternative gastrointestinal medication regimens should be considered.
Source: Journal of NeuroInterventional Surgery - March 18, 2022 Category: Neurosurgery Authors: Catapano, J. S., Srinivasan, V. M., Wakim, A. A., Lundberg, J. N., Rutledge, C., Cole, T. S., Baranoski, J. F., Fredrickson, V. L., Rahmani, R., Albuquerque, F. C., Ducruet, A. F. Tags: Hemorrhagic stroke Source Type: research

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