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P51 Case report of P1 segment occlusion with unilateral origin of posterior thalamoperforatoring arteries: the importance of basilar tip anatomy
ConclusionThis case highlights the importance of detection and treatment of a P1 occlusion, especially with unilateral origin of posterior thalamoperforating arteries, regardless of a dominant posterior communicating artery.
Source: Journal of NeuroInterventional Surgery - August 29, 2022 Category: Neurosurgery Authors: Pinto, E., Carneiro, A. Tags: 14th Congress of the European Society of Minimally Invasive Neurological Therapy 2022 Meeting Abstracts Source Type: research

P53 ESMINT/EYMINT E-fellowship - experiences from two seasons and implications for future neurointerventional tele-observerships
ConclusionsTele-observerships may facilitate location-independent training of complex neurointerventional procedures through high levels of situational awareness. Future programs will have to incorporate individual training schedules to enable fellows to better attend complex elective procedures.ReferencesBechstein M, Elsheikh S, Wodarg F, et al. Republished: Interhospital Teleproctoring of Endovascular Intracranial Aneurysm Treatment Using a Dedicated Live-streaming Technology: First Experiences during the Covid-19 Pandemic. J Neurointerv Surg 2021;13(2):E1.Bechstein M, Buhk JH, Frolich AM, et al. Training and Supervision...
Source: Journal of NeuroInterventional Surgery - August 29, 2022 Category: Neurosurgery Authors: Bechstein, M., Hanning, U., Martinez-Galdamez, M., Kalousek, V., Fiehler, J., Guerreiro, H. Tags: 14th Congress of the European Society of Minimally Invasive Neurological Therapy 2022 Meeting Abstracts Source Type: research

P78 How far is too far in stroke thrombectomy? From XL to XS vessel occlusions with radially adjustable stent-retrievers - Tigertriever XL and Tigertriever 13
ConclusionMechanical thrombectomy for both primary or secondary DMVO seems feasible and as safe as for LVO. Our initial experience using the Tigertriever13 is of special interest as it shows we can potentially significantly expand AIS population that can benefit from mechanical thrombectomy treatment.ReferencesGuenego A, Mine B, Bonnet T, et al. Thrombectomy for distal medium vessel occlusion with a new generation of stentretriever (tigertriever 13). Interv Neuroradiol 2021: 15910199211039926. 2021/09/14. DOI: 10.1177/15910199211039926. Do you have any conflict of interest to declare?: YesConflict of Interest StatementCons...
Source: Journal of NeuroInterventional Surgery - August 29, 2022 Category: Neurosurgery Authors: Guenego, A., Lubicz, B. Tags: 14th Congress of the European Society of Minimally Invasive Neurological Therapy 2022 Meeting Abstracts Source Type: research

P79 Multicenter assessment of the Tigertriever 13 for thrombectomy in primary medium vessels occlusions
ConclusionMechanical thrombectomy using the Tigertriever 13 appears to be safe and effective for MeVO among different centers and physicians, as a first-line device or as a recue-therapy after an other approach failure.ReferencesGuenego A, Mine B, Bonnet T, et al. Thrombectomy for distal medium vessel occlusion with a new generation of stentretriever (tigertriever 13). Interv Neuroradiol 2021: 15910199211039926. 2021/09/14. DOI: 10.1177/15910199211039926. Do you have any conflict of interest to declare?: YesConflict of Interest StatementConsultancy for Rapid Medical (travel grant only)
Source: Journal of NeuroInterventional Surgery - August 29, 2022 Category: Neurosurgery Authors: Guenego, A., Lubicz, B., Dmytriw, A., Regenhardt, R., Diestro, J., Jabbour, P., Siegler, J., Gonzalez, N., Levitt, M., Tancredi, I., Rouchaud, A., Fiehler, J., Kan, P., Berge, J., Nedelcu, S., Ota, T., Yeo, L., Sheth, S., Collin, T., Renieri, L., Mowla, A Tags: 14th Congress of the European Society of Minimally Invasive Neurological Therapy 2022 Meeting Abstracts Source Type: research

P80 Aspiration thrombectomy of acute ischemic stroke patients with anterior circulation tandem lesion
ConclusionsAspiration thrombectomy restored blood flow and resulted in good 90-day functional outcome in AIS patients with anterior circulation tandem lesion. The 90-day mortality rate in these patients was low. Clinical outcomes were similar between patients with and without stent. Do you have any conflict of interest to declare?: YesConflict of Interest Statement Zaidat: Grant/research support: Genentech, Medtronic Neurovascular, Stryker; Consultant: Codman, Medtronic Neurovascular, National Institutes of Health (NIH) StrokeNet, Penumbra, Stryker. Other financial or material support: Honoraria: Codman, Medtronic Neurovas...
Source: Journal of NeuroInterventional Surgery - August 29, 2022 Category: Neurosurgery Authors: Zaidat, O., Fifi, J., Hassan, A. Tags: 14th Congress of the European Society of Minimally Invasive Neurological Therapy 2022 Meeting Abstracts Source Type: research

P89 "Not only Carotid: two unusual cases of treatment of steno-obstructions
ConclusionsThe persistence of fetal anastomosis between carotid and basilar artery would represent a posterior cerebral circulation risk for ischemia and embolic infarction; in these cases the menagement of carotid steno-obstructions is challenging and requires special considerations.ReferencesJin X, Sun L, Feng Z, Li X, et. al. Persistent Hypoglossal Artery as a Potential Risk Factor for Simultaneous Carotid and Vertebrobasilar Infarcts. Front Neurol. 2018 Oct 11;9:837.Burgard M, Psathas E, Mordasini P, et. al. Symptomatic Internal Carotid Artery Stenosis in the Presence of a Persistent Primary Hypoglossal Artery. Vascula...
Source: Journal of NeuroInterventional Surgery - August 29, 2022 Category: Neurosurgery Authors: Corraine, S., Ledda, V., Schirru, F., Erta, M., Ferrari, A., Fusaro, F., Comelli, S. Tags: 14th Congress of the European Society of Minimally Invasive Neurological Therapy 2022 Meeting Abstracts Source Type: research

P94 Deep learning-based automated device detection for assessment standardisation in mechanical thrombectomy
ConclusionAutomated DSA assessment on device presence and differentiation is feasible. Its application on evaluation of wider data-sets should be further evaluated.ReferencesNielsen M, Waldmann M, Frölich, et al. Deep learning-based automated thrombolysis in cerebral infarction scoring: a timely proof-of-principle study. Stroke 2021 Nov;52(11):3497–504.Vaswani A, Shazeer N, Parmar N, et al. Attention is all You Need. Advances in Neural Information Processing Systems. 2017;30.Ali A, Touvron H, Caron M, et al. XCIT: Cross-Covariance Image Transformers. Advances in Neural Information Processing Systems. 2021 Dec...
Source: Journal of NeuroInterventional Surgery - August 29, 2022 Category: Neurosurgery Authors: Guerreiro, H., Nielsen, M., Sentker, T., Schmidt, E., Kniep, H., Fiehler, J., Werner, R. Tags: 14th Congress of the European Society of Minimally Invasive Neurological Therapy 2022 Meeting Abstracts Source Type: research

Mechanical thrombectomy for acute ischemic stroke in COVID-19 patients: multicenter experience in 111 cases
Conclusion Our study showed a poor clinical outcome and high mortality, especially in patients with severe acute COVID-19 infection undergoing MT due to LVO.
Source: Journal of NeuroInterventional Surgery - August 12, 2022 Category: Neurosurgery Authors: Styczen, H., Maus, V., Goertz, L., Köhrmann, M., Kleinschnitz, C., Fischer, S., Möhlenbruch, M., Mühlen, I., Kallmünzer, B., Dorn, F., Lakghomi, A., Gawlitza, M., Kaiser, D., Klisch, J., Lobsien, D., Rohde, S., Ellrichmann, Tags: COVID-19 The pandemic and neurointervention Source Type: research

Addition of intracranial aspiration to balloon guide catheter does not improve outcomes in large vessel occlusion anterior circulation stent retriever based thrombectomy for acute stroke
Conclusions Our data showed that addition of distal intracranial aspiration catheters to BGC+SR based thrombectomy in patients with acute anterior circulation LVO did not provide higher rates of FPE or improved clinical outcomes.
Source: Journal of NeuroInterventional Surgery - August 12, 2022 Category: Neurosurgery Authors: Blasco, J., Puig, J., Lopez-Rueda, A., Daunis-i-Estadella, P., Llull, L., Zarco, F., Macias, N., Macho, J., Gonzalez, E., Labayen, I., Vega, P., Murias, E., Jimenez-Gomez, E., Bravo Rey, I., Moreu, M., Perez-Garcia, C., Chirife Chaparro, O., Aixut, S., Te Tags: Ischemic stroke Source Type: research

Non-contrast head CT alone for thrombectomy in acute ischemic stroke: analysis of the ANGEL-ACT registry
Conclusions In patients selected for MT using NCHCT alone versus NCHCT + NVI, there were improved procedural outcomes and smaller increases in baseline mRS scores at 90 days.
Source: Journal of NeuroInterventional Surgery - August 12, 2022 Category: Neurosurgery Authors: Ren, Z., Ma, G., Mokin, M., Jadhav, A. P., Jia, B., Tong, X., Bauer, C., Liu, R., Wang, A., Zhang, X., Mo, D., Ma, N., Gao, F., Song, L., Sun, X., Huo, X., Deng, Y., Liu, L., Luo, G., Luo, X., Peng, Y., Gui, L., Song, C., Wu, J., Wang, L., Li, C., Jovin, Tags: Ischemic stroke Source Type: research

Diversion-p64: results from an international, prospective, multicenter, single-arm post-market study to assess the safety and effectiveness of the p64 flow modulation device
Conclusions Diversion-p64 is the largest prospective study using the p64 flow modulation device. The results of this study demonstrate that the device has a high efficacy and carries a low rate of mortality and permanent morbidity.
Source: Journal of NeuroInterventional Surgery - August 12, 2022 Category: Neurosurgery Authors: Bonafe, A., Perez, M. A., Henkes, H., Lylyk, P., Bleise, C., Gascou, G., Sirakov, S., Sirakov, A., Stockx, L., Turjman, F., Petrov, A., Roth, C., Narata, A.-P., Barreau, X., Loehr, C., Berlis, A., Pierot, L., Mis, M., Goddard, T., Clifton, A., Klisch, J., Tags: Open access, Hemorrhagic stroke Source Type: research

LB003 Multicenter assessment of the tigertriever 13 for thrombectomy in primary medium vessels occlusions
ConclusionMechanical thrombectomy using the Tigertriever13 appears to be safe and effective for MeVO among different centers and physicians, as a first-line device or as a recue-therapy after an other approach failure.Disclosures A. guenego: 6; C; Travel Grant to PAIRS in Dubai by Rapid Medical. B. lubicz: None. A. Dmytriw: None. R. Regenhardt: None. J. diestro: None. V. pereira: None. P. jabbour: None. J. siegler: None. N. gonzalez: None. M. Levitt: None. I. Tancredi: None. A. Rouchaud: None. J. Fiehler: None. T. Faizy: None. P. Kan: None. X. barreau: None.
Source: Journal of NeuroInterventional Surgery - July 26, 2022 Category: Neurosurgery Authors: Guenego, A., Lubicz, B., Dmytriw, A., Regenhardt, R., Diestro, J., Pereira, V., Jabbour, P., Siegler, J., Gonzalez, N., Levitt, M., Tancredi, I., Rouchaud, A., Fiehler, J., Faizy, T., Kan, P., Barreau, X. Tags: SNIS 19th annual meeting late-breaking oral 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-008 The cerus trial: contour for bifurcation aneurysms
The Contour is a novel intra-aneurysmal flow disrupting device to treat intracranial aneurysms. To evaluate the safety and effectiveness of the Contour in nonruptured intracranial bifurcation aneurysms, we conducted a prospective, multicenter, single-arm study on thirty-four patients.The primary end points were occlusion status at 6 and 12 months as well as major stroke within 6 mo. Secondary end points were retreatment rate, procedure time, and procedure-related/device-related adverse events. An independent core lab reviewed all the images. Adverse events were reviewed by a clinical events committee.32 of 34 aneurysms wer...
Source: Journal of NeuroInterventional Surgery - July 23, 2022 Category: Neurosurgery Authors: Liebig, T. Tags: SNIS 19th annual meeting oral abstracts Source Type: research

O-012 Peri-procedural complications, clinical outcomes and recurrence/retreatment rates after endovascular versus surgical treatment of intracranial aneurysms: a real-world assessment from the NVQI-QOD cerebral aneurysm registry
ConclusionEndovascular treatment of intracranial aneurysms was associated with better overall clinical outcomes than surgical clipping with improved disability free survival and better disposition at discharge or follow-up, across both ruptured and unruptured aneurysms. Although intraoperative complications were higher for ruptured aneurysms treated with endovascular treatment, there was no difference in unruptured aneurysms versus surgical clipping. Post-operative complications were lower for the endovascular cohort regardless of presentation. Overall, these data support ongoing primary adoption of endovascular treatment ...
Source: Journal of NeuroInterventional Surgery - July 23, 2022 Category: Neurosurgery Authors: Bauknight, W., Noorani, S., Abdalla, R., Tejada, J., Church, E., Sahlein, D., Howington, J., Ansari, S. Tags: SNIS 19th annual meeting oral abstracts Source Type: research

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