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E-117 Evaluation of patient deaths after mechanical thrombectomy - A single center experience
ConclusionApproximately 50% of patients who died after mechanical thrombectomy died due to non-neurological causes.Disclosures A. Kuhn: None. V. Naragum: None. R. Catton: None. J. Singh: None. F. Massari: None. K. de Macedo Rodrigues: None. M. Gounis: 1; C; National Institutes of Health (NIH), the United States – Israel Binational Science Foundation, Anaconda, ApicBio, Axovant, Cerenovus, Cook Medical, Gentuity, Imperative Care, InNeuroCo, Magneto. 2; C; Cerenovus, Imperative Care, phenox, Medtronic Neurovascular, Route 92 Medical, Stryker Neurovascular. 4; C; Imperative Care, InNeuroCo and Neurogami. A. Puri: 1; C; ...
Source: Journal of NeuroInterventional Surgery - July 26, 2021 Category: Neurosurgery Authors: Kuhn, A., Naragum, V., Catton, R., Singh, J., Massari, F., de Macedo Rodrigues, K., Gounis, M., Puri, A. Tags: Electronic poster abstracts Source Type: research

E-034 EndoVascular treatment of wide-neck aneurysms, an evaluation of safety and effectiveness of stryker surpass evolve™ flow diverter system
ConclusionThe EVOLVE prospective, multicenter, single arm, pre-market study (ClinicalTrials.gov NCT: NCT04195568), is designed to evaluate the safety, efficacy, and performance of the Surpass EVOLVE Flow Diverter System in the treatment of unruptured wide-neck, saccular or fusiform IA located in the ICA and its branches with an RVD of 2.5 to 5.0 mm.Disclosures A. Arthur: 2; C; Stryker Neurovascular. J. Fifi: 1; C; Stryker Neurovascular. 2; C; Stryker Neurovascular. H. Rice: 2; C; Stryker Neurovascular. A. Wakhloo: 2; C; Stryker Neurovascular. A. Coon: 2; C; Stryker Neurovascular. V. Pereira: 2; C; Stryker, Medtronic, Balt, Cerenovus.
Source: Journal of NeuroInterventional Surgery - July 26, 2021 Category: Neurosurgery Authors: Arthur, A., Fifi, J., Rice, H., Wakhloo, A., Coon, A., Pereira, V. Tags: Electronic poster abstracts Source Type: research

P-030 Mechanical thrombectomy in medium vessel occlusions using the novel aspiration MIVI Q catheters: an international multicenter experience
ConclusionsTreatment of MeVO patients with Q catheters resulted in optimal angiographic and clinical outcomes. Though angiographic results were similar between primary and secondary MeVOs, the first had less severe presentation and better outcomes at 90-days than the latter.Disclosures A. Monteiro: None. L. Makalanda: None. J. Wareham: None. J. Jones: None. P. Dhillon: None. P. Bhogal: None. W. Brinjikji: None. M. Mokin: None. A. Siddiqui: 1; C; Co-investigator for NIH – 1R01EB030092–01, Project Title: High Speed Angiography at 1000 frames per second; Mentor for Brain Aneurysm Foundation Carol W. Harvey Chair o...
Source: Journal of NeuroInterventional Surgery - July 23, 2022 Category: Neurosurgery Authors: Monteiro, A., Makalanda, L., Wareham, J., Jones, J., Dhillon, P., Bhogal, P., Brinjikji, W., Mokin, M., Siddiqui, A. Tags: SNIS 19th annual meeting oral poster abstracts Source Type: research

E-120 First pass efficacy of anterior circulation thrombectomy using the walrus balloon guide catheter
ConclusionThe Walrus BGC achieved more first pass mTICI scores equal or greater than 2B when compared to other guide catheters for anterior circulation mechanical thrombectomy and among those cases also achieved more mTICI 2C and 3 recanalizations.Disclosures A. Kuhn: None. V. Naragum: None. J. Singh: None. K. de Macedo Rodrigues: None. F. Massari: None. V. Anagnostakou: None. M. Gounis: 1; C; National Institutes of Health (NIH), the United States – Israel Binational Science Foundation, Anaconda, ApicBio, Axovant, Cerenovus, Cook Medical, Gentuity, Imperative Care, InNeuroCo, Magneto. 2; C; Cerenovus, Imperative Care...
Source: Journal of NeuroInterventional Surgery - July 26, 2021 Category: Neurosurgery Authors: Kuhn, A., Naragum, V., Singh, J., de Macedo Rodrigues, K., Massari, F., Anagnostakou, V., Gounis, M., Puri, A. Tags: Electronic poster abstracts Source Type: research

O-007 First US multicenter experience using the pipeline flex embolization device with shield technology for treatment of intracranial aneurysms - periprocedural outcomes and early safety profile
ConclusionOur study is the first to report the early experience with the newly FDA-approved PED Flex with Shield technology amongst US centers. Our results are comparable with non-US, international studies showing a high technical success rate and safe peri-procedural angiographic and patient outcome. Long-term follow-up will be needed to provide more robust data on angiographic and patient outcomes.Disclosures A. Kuhn: None. J. Singh: None. A. Abdelsalam: None. V. Saini: None. J. Burks: None. G. Cortez: None. R. Abbas: None. M. Pervez: None. H. Saei: None. S. Burke: None. V. Naragum: None. F. Massari: None. S. Marwah: Non...
Source: Journal of NeuroInterventional Surgery - July 23, 2022 Category: Neurosurgery Authors: Kuhn, A., Singh, J., Abdelsalam, A., Saini, V., Burks, J., Cortez, G., Abbas, R., Pervez, M., Saei, H., Burke, S., Naragum, V., Massari, F., Marwah, S., Gounis, M., Hassan, A., Malek, A., Dabus, G., Linfante, I., Tjoumakaris, S., Jabbour, P., Hanel, R., S Tags: SNIS 19th annual meeting oral abstracts Source Type: research

O-067 Super large-bore ingestion of clot (SLIC) leads to high first-pass effect in thrombectomy for large vessel occlusion
ConclusionOur initial experience with the SLIC technique resulted in achieving first-pass effect (mTICI≥2C) in 70.5%. Navigation of the SLBA catheter extender over the Tenzing insert was successful and safe in this early experience.Disclosures F. Massari: None. G. Dabus: 2; C; Medtronic, Microvention, Cerenovus, Penumbra, Stryker, InNeuroCo, Route 92. G. Cortez: None. J. Singh: None. A. Kuhn: None. V. Naragum: None. V. Anagnostakou: None. R. Hanel: 1; C; NIH, Interline Endowment, Microvention, Stryker and CNX. 2; C; Medtronic, Balt, Stryker, Q’Apel medical, Codman Neuro (J&J), Cerenovus, Microvention, Imperati...
Source: Journal of NeuroInterventional Surgery - July 23, 2022 Category: Neurosurgery Authors: Massari, F., Dabus, G., Cortez, G., Singh, J., Kuhn, A., Naragum, V., Anagnostakou, V., Hanel, R., Gounis, M., Puri, A. Tags: SNIS 19th annual meeting oral abstracts Source Type: research

E-190 Trends in admissions for intracranial dissections in the United States
ConclusionThe prevalence of uIADs among hospitalized patients is scarce, and only 2% of craniocervical dissection-related AIS is due to uIAD. Compared to IAs, patients were more likely younger and male, and uIAD more commonly led to acute ischemic stroke and motor deficits. The trend in age remained stable across the four years analyzed, while the proportion of females increased. There was no trend in the proportion of races among uIADs, however.Disclosures W. Wahood: None. G. Lanzino: None. Z. Keser: None.
Source: Journal of NeuroInterventional Surgery - July 23, 2022 Category: Neurosurgery Authors: Wahood, W., Lanzino, G., Keser, Z. Tags: SNIS 19th annual meeting electronic poster abstracts Source Type: research

E-246 Professional board certification for nurses, advanced practice providers, and radiology techs working in neurointerventional labs: the certified neurointerventional clinician™ (CNIC)
ConclusionsAttainment of CNIC™ certification demonstrates expertise in neurointerventional lab competencies that include clinical and neuroimaging diagnosis of stroke, evidence-based management principles for both ischemic and hemorrhagic stroke subtypes, and capabilities to safely support peri-procedural management in the neurointerventional lab.Disclosures A. Doerr: None. B. Fill: None. M. Sabapathypillai: None. C. Ortiz: None. H. Shownkeen: None. A. Alexandrov: None. C. Valasco: None. A. Richardson: None. A. Alexandrov: None.
Source: Journal of NeuroInterventional Surgery - July 30, 2023 Category: Neurosurgery Authors: Doerr, A., Fill, B., Sabapathypillai, M., Ortiz, C., Shownkeen, H., Alexandrov, A., Valasco, C., Richardson, A., Alexandrov, A. Tags: SNIS 20th annual meeting electronic poster abstracts Source Type: research

Immediate procedural outcomes in 44 consecutive Pipeline Flex cases: the first North American single-center series
Conclusions Pipeline Flex is a second-generation flow diverter with enhanced features compared with the first-generation PED. These modifications allow for more reliable deployment with continued improvements in procedural safety.
Source: Journal of NeuroInterventional Surgery - June 13, 2016 Category: Neurosurgery Authors: Colby, G. P., Lin, L.-M., Caplan, J. M., Jiang, B., Huang, J., Tamargo, R. J., Coon, A. L. Tags: New devices Source Type: research

Correlation between intracranial vertebral artery stenosis diameter measured by digital subtraction angiography and cross-sectional area measured by optical coherence tomography
Conclusion Measurement of the narrowest diameter was not a reliable predictor of the cross-sectional area of V4 stenosis. Larger studies are therefore needed to develop a new evaluation system based on V4 stenosis.
Source: Journal of NeuroInterventional Surgery - October 15, 2021 Category: Neurosurgery Authors: Feng, Y., Wu, T., Wang, T., Li, Y., Li, M., Li, L., Yang, B., Bai, X., Zhang, X., Wang, Y., Gao, P., Chen, Y., Ma, Y., Jiao, L. Tags: Ischemic stroke Source Type: research

COVID-19 meets neurointervention on the pages of JNIS
As 2019 came to a close, a novel B-coronavirus, labeled by the World Health Organization as COVID-19, was noted to be spreading in China.1 The COVID-19 virus is an enveloped single-strand, positive-sense RNA, which means that the virus can use its RNA as the template from which to create proteins needed for propagation and, ultimately, spread. The name coronavirus refers to the characteristic crown-like appearance of these viruses that is seen on electron microscopy. By spring 2020, COVID-19 was spreading rapidly throughout the United States and Europe, and neurointerventionalists soon found themselves on the frontline.2 T...
Source: Journal of NeuroInterventional Surgery - September 15, 2021 Category: Neurosurgery Authors: Milburn, J. M., Regenhardt, R. W., Fiehler, J., Fargen, K. M., Hirsch, J. A. Tags: COVID-19 Commentary Source Type: research

O-005 Comparison of on-label versus off-label treatment of intracranial aneurysms with the pipeline embolization devices
ConclusionIn real-world practice, off-label uses of PED can achieve similar safety and efficacy to on-label uses, though there may be a slightly higher rate of ischemic complications in off-label uses. Expert judgment is a useful supplement to official guidelines when assessing reasonable PED use beyond its approved indications.Disclosures S. Cler: None. D. Lauzier: None. A. Kansagra: 2; C; Penumbra, Microvention, iSchemaView.
Source: Journal of NeuroInterventional Surgery - July 26, 2021 Category: Neurosurgery Authors: Cler, S., Lauzier, D., Kansagra, A. Tags: Oral abstracts Source Type: research

P-051 Treatment of acutely ruptured intracranial aneurysms with woven endobridge device: a systematic review
ConclusionsTreatment of acutely ruptured aneurysms with WEB device results in high rates of adequate occlusion, with low perioperative complications, no rebleeding and low recurrence. This device is promising for wide-necked ruptured aneurysms that are not amenable to clipping or coiling, considering its lower need for antiplatelet regimen either during procedure or follow-up.Disclosures A. Monteiro: None. A. Lazar: None. M. Waqas: None. H. Rai: None. A. Baig: None. R. Dossani: None. F. Almayman: None. J. Cappuzzo: None. J. Davies: 1; C; National Center for Advancing Translational Sciences of the National Institutes of Hea...
Source: Journal of NeuroInterventional Surgery - July 26, 2021 Category: Neurosurgery Authors: Monteiro, A., Lazar, A., Waqas, M., Rai, H., Baig, A., Dossani, R., Almayman, F., Cappuzzo, J., Davies, J., Snyder, K., Levy, E., Siddiqui, A. Tags: Oral poster abstracts Source Type: research

E-103 Pediatric hospital proximity to endovascular thrombectomy centers in the United States
ConclusionsThe vast majority of pediatric hospitals are located near thrombectomy care. These results suggest that partnerships between pediatric hospitals and thrombectomy centers can assure pediatric access to thrombectomy without unreasonably lengthy transfers.Disclosures C. Yu: None. K. Guilliams: None. P. Panagos: None. A. Kansagra: None.
Source: Journal of NeuroInterventional Surgery - July 26, 2021 Category: Neurosurgery Authors: Yu, C., Guilliams, K., Panagos, P., Kansagra, A. Tags: Electronic poster abstracts Source Type: research

E-122 Incidence of access site complications after transradial access for neurointerventions
ConclusionThe transradial approach for diagnostic and interventional Neuro IR procedures is a safe vascular access choice.Disclosures A. Kuhn: None. J. Singh: None. A. McGowan: None. M. Kirk: None. F. Massari: None. K. de Macedo Rodrigues: None. V. Naragum: None. V. Anagnostakou: None. M. Gounis: 1; C; National Institutes of Health (NIH), the United States – Israel Binational Science Foundation, Anaconda, ApicBio, Axovant, Cerenovus, Cook Medical, Gentuity, Imperative Care, InNeuroCo, Magneto. 2; C; Cerenovus, Imperative Care, phenox, Medtronic Neurovascular, Route 92 Medical, Stryker Neurovascular. 4; C; Imperative ...
Source: Journal of NeuroInterventional Surgery - July 26, 2021 Category: Neurosurgery Authors: Kuhn, A., Singh, J., McGowan, A., Kirk, M., Massari, F., de Macedo Rodrigues, K., Naragum, V., Anagnostakou, V., Gounis, M., Puri, A. Tags: Electronic poster abstracts Source Type: research

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