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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

O-021 Concurrent middle meningeal artery embolization for treatment of chronic subdural hematomas
This study provides evidence from a multi-institutional cohort that performing concurrent MMAe in the perioperative period as an adjunct to surgical evacuation is a safe and effective means to reduce surgical recurrence in patients with NASHs.Abstract O-021 Table 1Procedural details of 145 patients (149 NASHs) who underwent concurrent MMAe Characteristic Value (range or%) Antiplatelet/anticoagulation use Antiplatelet 46/147* (31) Anticoagulant 29/148* (20) Both 9/148* (6) Prior SDH evacuation 38/149* (26) Perioperative platelet count < 100K 8/148* (5) Procedure details Anesthesia General 63/149* (42) MAC 57/149* (38) C...
Source: Journal of NeuroInterventional Surgery - July 30, 2023 Category: Neurosurgery Authors: Salah, W., Baker, C., Scoville, J., Hunsaker, J., Ogilvy, C., Moore, J., Riina, H., Levy, E., Spiotta, A., Jankowitz, B., Cawley, C., Khalessi, A., Tanweer, O., Hanel, R., Gross, B., Kuybu, O., Nguyen Hoang, A., Baig, A., Khorasanizadeh, M., Mendez, A., C Tags: SNIS 20th annual meeting oral abstracts Source Type: research

O23 Mechanical thrombectomy using a modified ADAPT (a direct aspiration first pass technique) in a patient with m1-occlusion and concomitant mca-aneurysm
We present a case in which a patient with a right-sided MCA M1 occlusion (NIHSS 30) and concomitant mediabifurcation aneurysm was fully recanalized (TICI 3) using a modified ADAPT technique, without prior passage of the thrombus as previously described by Turc et al.2. To us, the avoidance of blind aneurysm passage by microwire and microcatheter appears to be a major advantage of the method used. Instead, the aspiration catheter was advanced via a 0.035 Terumo guide wire for proximal stabilization. Thrombus was aspirated with proximally inflated BGC and repeated imaging series up to visualization of the aneurysm neck. Thus...
Source: Journal of NeuroInterventional Surgery - August 29, 2022 Category: Neurosurgery Authors: Demerath, T., Elbaz, A., Urbach, H., Taschner, C. Tags: 14th Congress of the European Society of Minimally Invasive Neurological Therapy 2022 Meeting Abstracts Source Type: research

E-023 Predictors of outcomes in tandem anterior circulation occlusions following mechanical thrombectomy
In this study, we present outcomes of patients undergoing tandem mechanical thrombectomy. We demonstrate that stenting is associated with improved final reperfusion, but increased odds of asymptomatic ICH. Additional clinical trials should be performed to optimize the procedure and improve patient outcomes.Disclosures J. Catapano: None. D. Farhadi: None. A. Naik: None. S. Koester: None. E. Winkler: None. V. Srinivasan: None. K. Karahalios: None. J. Rulney: None. S. Desai: None. A. Jadhav: None. F. Albuquerque: None. A. Ducruet: None.
Source: Journal of NeuroInterventional Surgery - July 23, 2022 Category: Neurosurgery Authors: Catapano, J., Farhadi, D., Naik, A., Koester, S., Winkler, E., Srinivasan, V., Karahalios, K., Rulney, J., Desai, S., Jadhav, A., Albuquerque, F., Ducruet, A. Tags: SNIS 19th annual meeting electronic poster abstracts Source Type: research

E-055 Internal carotid artery reconstruction with flow diverting stents in the treatment of acute ischemic stroke: technical considerations and medical management
ConclusionsFDS appear to be a safe and effective tool for reconstruction of a symptomatic dissection in tortuous cervical ICAs. Their flexibility allows conformation to complex anatomies and they can be traversed multiple times by aspiration catheters/stentrievers. We found excellent patency at follow up. The unique challenges posed by utilization of high-profile stents in acute stroke require appropriate technical execution and medical management.Disclosures E. Orru: None. F. Bounni: None. M. Marosfoi: None. N. Patel: None. A. Wakhloo: 1; C; Philips medical. 2; C; Stryker, Phenox. 4; C; InNeuroCo, EpiEP, Neural Analytics, ThrombX.
Source: Journal of NeuroInterventional Surgery - July 23, 2022 Category: Neurosurgery Authors: Orru, E., Bounni, F., Marosfoi, M., Patel, N., Wakhloo, A. Tags: SNIS 19th annual meeting electronic poster abstracts Source Type: research

E-074 Case report: reconstructive endovascular treatment of symptomatic long segment dissection with pseudo-aneurysm of dominant left vertebral artery
We report a case of 27 year old Caucasian female with no known medical history who presented to our hospital with several days’ history of posterior headache and neck pain. CT head was unremarkable. CTA head and neck showed short segment of severe stenosis secondary to dissection at the V2-V3 junction of dominant left vertebral artery with associated 6 mm pseudo aneurysm. Right vertebral artery was hypoplastic and it ended in PICA. The dissection was presumed to be spontaneous as patient denied any trauma or strenuous neck manipulation or family history of connective tissue disorders. She was started on antiplatelet ...
Source: Journal of NeuroInterventional Surgery - July 23, 2022 Category: Neurosurgery Authors: Soomro, J., Greco, J., Whitis, J., Rao, S., Yoo, A. Tags: SNIS 19th annual meeting electronic poster abstracts Source Type: research

E-021 Pathophysiology, stroke types, collateral formation and aneurysms in moyamoya disease/moya moya syndrome
ConclusionsMMD is presented most commonly with ischemic stroke in the pediatric age group and with hemorrhagic stroke in the adult age group. MMD-associated intracranial aneurysms frequently occur in patients presenting with hemorrhagic unilateral MMD and are associated with an extremely high rate of rupture. Long-standing hemodynamic stress might contribute to the formation of an aneurysm.Disclosures S. Ahmad: None.
Source: Journal of NeuroInterventional Surgery - July 26, 2021 Category: Neurosurgery Authors: Ahmad, S. 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-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

Monotherapy with stenting in subarachnoid hemorrhage (SAH) after middle cerebral artery dissection
We describe a young patient who presented with acute headache from a subarachnoid hemorrhage that was ultimately determined to be due to a vascular dissection in the middle cerebral artery. The initial angiogram showed vascular irregularities in this area with stenosis. Repeat imaging 4 days after presentation identified a pseudoaneurysm proximal to the stenosis. The patient was successfully treated with a self-expanding nitinol stent and followed up with serial angiography during postoperative recovery in the hospital; additional angiograms were performed approximately 1 and 6 months after treatment. Serial angi...
Source: Journal of NeuroInterventional Surgery - March 15, 2016 Category: Neurosurgery Authors: Puri, A. S., Gounis, M. J., Massari, F., Howk, M., Weaver, J., Wakhloo, A. K. Tags: Electronic pages Source Type: research

E-030 clinical and angiographic outcomes in endovascular treatment of tandem vessel occlusions in acute ischemic stroke
ConclusionEndovascular treatment of tandem arterial occlusions in acute ischemic stroke is feasible, safe, and yields excellent angiographic and good clinical outcomesDisclosuresM. Grigoryan: None. D. Haussen: None. A. Lima: None. J. Grossberg: None. A. Anderson: None. S. Belagaje: None. F. Nahab: None. M. Frankel: None. R. Nogueira: 2; C; Covidien, Steering Committee for the SWIFT and SWIFT Prime Trials and Core Lab for the STAR Trial, Stryker, PI for the TREVO-2 and DAWN Trials, Penumbra, Executive Committee for the 3D Separator Trial.
Source: Journal of NeuroInterventional Surgery - July 26, 2015 Category: Neurosurgery Authors: Grigoryan, M., Haussen, D., Lima, A., Grossberg, J., Anderson, A., Belagaje, S., Nahab, F., Frankel, M., Nogueira, R. Tags: SNIS 12th Annual Meeting Electronic Poster Abstracts Source Type: research