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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

P-025 Large scale, CT evaluation can improve access to imaging studies within multi-center stroke trials
ConclusionsViz ICH VOLUME can screen large numbers of CT scans and send alerts within minutes to medical professionals searching for clinical trial candidates in time-sensitive environments. Studies relying on radiographic selection criteria may benefit from automated screening.Disclosures B. Jankowitz: 2; C; Stryker, Medtronic. J. Davies: None. J. Day: None. S. Chowdhry: None. C. Schirmer: None. N. Levkovitz: 5; C; Viz.ai. O. Bibas: 5; C; Viz.ai. E. Blanc: 5; C; Viz.ai. G. Pradilla: None.
Source: Journal of NeuroInterventional Surgery - July 26, 2021 Category: Neurosurgery Authors: Jankowitz, B., Davies, J., Day, J., Chowdhry, S., Schirmer, C., Levkovitz, N., Bibas, O., Blanc, E., Pradilla, G. Tags: Oral poster abstracts Source Type: research

E-003 Safety and efficacy of balloon guide catheters in thrombectomy for anterior circulation stroke: a systematic review and meta-analysis
ConclusionBGC use during MT for acute ischemic stroke is associated faster to groin-to-recanalization times, improved TICI ≥2b reperfusion, lower incidence of sICH, and lower mortality. These data demonstrate the promise of BGC use for MT and warrant further study.Disclosures N. Shlobin: None. B. Jahromi: None. S. Ansari: None. M. Potts: None.
Source: Journal of NeuroInterventional Surgery - July 26, 2021 Category: Neurosurgery Authors: Shlobin, N., Jahromi, B., Ansari, S., Potts, M. Tags: Electronic poster abstracts Source Type: research

E-053 Mount everest technique (MET) with the novel tenzing inserts and super large bore catheters - Technique and initial experience
ConclusionThe Mount Everest Technique (MET) combines the technological novelty of the 0.106" Base Camp, 088" HiPoint and matching self-centering Tenzing insert catheters to navigate these super large bore catheters to the face of the clot without needing to cross them with large microcatheters or wires. Thereafter based on the "Law of Conservation of Matter", the retraction of the Tenzing insert while applying a suction force at the HiPoint catheter results in the "ingestion" of the clot in toto. This technique and catheter combination have led to 100% TICI 3 recanalization with 80% first pass success in our initial experi...
Source: Journal of NeuroInterventional Surgery - July 26, 2021 Category: Neurosurgery Authors: Massari, F., Singh, J., Kuhn, A., Naragum, V., Anagnostakou, V., Gounis, M., Puri, A. Tags: Electronic poster abstracts Source Type: research

E-074 Predictors of hemorrhagic conversion following mechanical thrombectomy for acute ischemic stroke (AIS)
ConclusionHistory of prior stroke, radiographic evidence of infarct burden, and radiographic success of thrombectomy may be considered significant predictors for hemorrhagic conversion following AIS in patients who undergo mechanical thrombectomy.Disclosures A. Boyke: None. K. Javed: None. J. Dardick: None. I. Naidu: None. J. Ryvlin: None. D. Kadaba: None. N. Haranhalli: None.
Source: Journal of NeuroInterventional Surgery - July 26, 2021 Category: Neurosurgery Authors: Boyke, A., Javed, K., Dardick, J., Naidu, I., Ryvlin, J., Kadaba, D., Haranhalli, N. Tags: Electronic poster abstracts Source Type: research

Endovascular mechanical thrombectomy for cerebral venous sinus thrombosis: a systematic review
Conclusions EMT is an effective salvage therapy for refractory CVST, with a reasonable safety profile. Chemical thrombolysis, in conjunction with EMT, did not appear to result in additional harm or benefit. Further analysis is warranted to determine predictors of success after EMT for CVST.
Source: Journal of NeuroInterventional Surgery - October 13, 2017 Category: Neurosurgery Authors: Ilyas, A., Chen, C.-J., Raper, D. M., Ding, D., Buell, T., Mastorakos, P., Liu, K. C. Tags: Ischemic stroke Source Type: research

Vessel perforation during stent retriever thrombectomy for acute ischemic stroke: technical details and clinical outcomes
Conclusions Intraprocedural perforations during stent retriever thrombectomy were rare, but when they occurred were associated with high mortality. Perforations most commonly occurred at distal occlusion sites and were often characterized by difficulty traversing the occlusion with a microcatheter or microwire, or while withdrawing the stent retriever. Nevertheless, 25% of patients had a favorable functional outcome, suggesting that in some patients with this complication good neurological recovery is achievable.
Source: Journal of NeuroInterventional Surgery - September 12, 2017 Category: Neurosurgery Authors: Mokin, M., Fargen, K. M., Primiani, C. T., Ren, Z., Dumont, T. M., Brasiliense, L. B. C., Dabus, G., Linfante, I., Kan, P., Srinivasan, V. M., Binning, M. J., Gupta, R., Turk, A. S., Elijovich, L., Arthur, A., Shallwani, H., Levy, E. I., Siddiqui, A. H. Tags: Ischemic stroke Source Type: research

Association of clot burden score with radiographic and clinical outcomes following Solitaire stent retriever thrombectomy: analysis of the SWIFT PRIME trial
Conclusions The combination of IV thrombolysis and stent retriever thrombectomy with the Solitaire device is highly effective in achieving successful recanalization and a good clinical outcome throughout the entire range of CBS values.
Source: Journal of NeuroInterventional Surgery - September 12, 2017 Category: Neurosurgery Authors: Mokin, M., Levy, E. I., Siddiqui, A. H., Goyal, M., Nogueira, R. G., Yavagal, D. R., M Pereira, V., Saver, J. L. Tags: Ischemic stroke Source Type: research

Utility of perfusion imaging in acute stroke treatment: a systematic review and meta-analysis
Conclusions Perfusion imaging may represent a complementary tool to standard radiographic assessment in enhancing patient selection for reperfusion therapy, with a subset of patients having up to 1.9 times the odds of achieving independent functional status at 3 months. This is particularly important as patients selected based on perfusion status often included individuals who did not meet the current treatment eligibility criteria.
Source: Journal of NeuroInterventional Surgery - September 12, 2017 Category: Neurosurgery Authors: Ryu, W. H. A., Avery, M. B., Dharampal, N., Allen, I. E., Hetts, S. W. Tags: Neuroimaging Source Type: research

O-035 Risk factors for delayed deterioration after cerebral venous thrombosis: a model to identify patients for early aggressive endovascular therapy
Conclusion We found that decreased mental status, seizure activity, papilledema, number of involved sinuses, sodium level, and platelet level to be the most important factors in predicting deterioration after CVT. This group may represent a subset of patients in who early thrombectomy may be considered. Further prospective trials are needed to confirm this hypothesis. Abstract O-035 Figure 1Odds ratios of clinical deterioration for the predictors of the multivariable logistic regression model. To get the ratio of deterioration for catergory 1 versus 0, one needs to take the reciprocal Disclosures S. Bushnaq: None. T. ...
Source: Journal of NeuroInterventional Surgery - July 23, 2017 Category: Neurosurgery Authors: Bushnaq, S., Thacker, T., Abbas, M., Qeadan, F., Carlson, A. Tags: Oral Abstracts Source Type: research

P-010 Practice variations in addressing acute tandem carotid occlusions in emergent large vessel occlusion strokes
Conclusion For tandem occlusions with cervical ICA involvement, acute stenting with adjunctive angioplasty, is a current prevailing practice for recanalization of the extracranial ICA. There is considerable variability in antiplatelet protocols, with a slight favoring of the administration of loading doses of aspirin and clopidogrel before stent deployment. Variability is also present for anesthesia, with general anesthesia having a significant role. Disclosures S. Coffman: None. S. Trott: None. A. Alhajeri: None. J. Fraser: None.
Source: Journal of NeuroInterventional Surgery - July 23, 2017 Category: Neurosurgery Authors: Coffman, S., Trott, S., Alhajeri, A., Fraser, J. Tags: Oral Poster Abstracts Source Type: research

Presence of the hyperintense acute reperfusion marker on MRI after mechanical thrombectomy for large vessel occlusion is associated with worse early neurological recovery
Conclusions This preliminary analysis shows that the presence of HARM may be linked to worse neurological recovery 24 hours after thrombectomy. Reperfusion injury may affect the number of patients achieving functional independence after treatment.
Source: Journal of NeuroInterventional Surgery - June 16, 2017 Category: Neurosurgery Authors: Gupta, R., Sun, C.-H. J., Rochestie, D., Owada, K., Khaldi, A., Johnson, A. K., Horn, C. M. Tags: Ischemic stroke Source Type: research

Traumatic basilar artery entrapment with patency of pontine perforators and absence of significant brainstem infarction: report of an unusual case
We report a rare case of entrapment of the basilar artery into the sphenoid bone caused by a longitudinal fracture of the clivus. Using high resolution three-dimensional flat panel angiography, we show preservation of the basilar artery perforators in spite of severe stenosis of the entrapped segment of the basilar artery. There were no obvious signs and symptoms of posterior fossa stroke clinically or radiographically as far as could be assessed under given clinical circumstances.
Source: Journal of NeuroInterventional Surgery - April 13, 2017 Category: Neurosurgery Authors: Kliesch, S., Bauknecht, C., Bohner, G., Liebig, T., Siebert, E. Tags: Neuroimaging Source Type: research

Delayed subarachnoid hemorrhage 7 years after cerebellar infarction from traumatic vertebral artery dissection
Vertebral artery dissection (VAD) is an important cause of ischemic stroke and subarachnoid hemorrhage (SAH). Dissections presenting with ischemia rarely cause SAH after more than a few hours, especially without radiographic evidence of pseudoaneurysm. We successfully treated a patient for persistent vessel injury presenting with SAH 7 years after presenting with extracranial subocclusive dissection of the right vertebral artery and an associated right posterior inferior cerebellar artery stroke. This is one of only three reported cases of delayed SAH occurring more than 2 weeks after an initial ischemic presenta...
Source: Journal of NeuroInterventional Surgery - March 15, 2017 Category: Neurosurgery Authors: Silva, M. A., See, A. P., Khandelwal, P., Patel, N. J., Aziz-Sultan, M. A. Tags: Hemorrhagic stroke Source Type: research

The myth of restenosis after carotid angioplasty and stenting
Conclusions Restenosis rates after carotid angioplasty and stenting are low. Patients with a history of ipsilateral neck surgery or irradiation are at higher risk for substantial radiographic and symptomatic restenosis.
Source: Journal of NeuroInterventional Surgery - September 12, 2016 Category: Neurosurgery Authors: Moon, K., Albuquerque, F. C., Levitt, M. R., Ahmed, A. S., Kalani, M. Y. S., McDougall, C. G. Tags: Ischemic stroke Source Type: research

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