Electronic poster abstracts最新文献

{"title":"E-020 A novel technique to treat tandem occlusion by utilizing stentriever as the distal protection device with aspiration catheter","authors":"S. Suzuki, J. Granstein, A. Chan, B. Ball, V. Vu, K. Golshani, I. Yuki","doi":"10.1136/neurintsurg-2021-SNIS.116","DOIUrl":"https://doi.org/10.1136/neurintsurg-2021-SNIS.116","url":null,"abstract":"BackgroundRevascularization in acute ischemic stroke (AIS) with tandem occlusion (TO) is technically challenging due to the involvement of two large vessel occlusions (LVO) in the same vascular territory, usually with a large clot burden. There are two traditional approaches to re-establish the blood flow from TO;initial intracranial mechanical thrombectomy (MT) (head-first) or initial angioplasty ± stenting (neck-first). We developed a novel technique to simultaneously revascularize distal and proximal occlusions. This is accomplished by utilizing a stent-retriever as a distal protection device and a large inner diameter aspiration catheter with a balloon guiding catheter to retrieve clot and prevent distal migration (flow-arrest proximal protection).Subject and MethodsSince January of 2018, we performed MT for 142 LVO in AIS of the anterior circulation, of which we treated 12 TO. For the last six cases of TO, the Novel technique was applied to revascularize and restore perfusion. Patient demographics, procedure time (artery puncture to closure), procedure safety including symptomatic intracranial hemorrhage (sICH), angiographic outcomes (TICI score), and clinical outcomes (mRS) were evaluated.ResultsThe novel technique procedure in detail: an 8-9-French balloon-guided catheter is advanced to the distal common carotid artery and the balloon is inflated for flow arrest proximal protection. A microcatheter and micro-guidewire are passed through the steno-occlusive site of the proximal internal carotid artery (ICA) and advanced into the M1 segment. After removing the micro-guidewire, a stent-retriever is navigated into the microcatheter and deployed at the distal M1 occlusion. Subsequently, the microcatheter is removed. The stent-retriever promotes flow restoration and captures distal emboli. During several minutes of flow restoration, a balloon angioplasty catheter is navigated to the proximal ICA steno-occlusive site over a stent-retriever wire, and balloon angioplasty is performed. After balloon angioplasty catheter removal, an aspiration catheter is advanced into the internal carotid artery, followed by the M1 segment, over the stent-retriever wire. Clot aspiration, retrieval, and capture of the stent-retriever is then performed. Carotid stenting is not used due to concerns for intracranial hemorrhage related to antiplatelet therapy in the acute phase. Among six patients, the mean age was 68 yo (41 - 83), median NIHSS at presentation was 18 (5 - 24), sICH was 1/6, and mortality was 1/6. One patient died from concomitant COVID-19 pneumonia despite successful revascularization and neurological improvement. TICI IIb or III was achieved in 5/6 patients, and mRS 0-2 was observed in 3/6 patients. The mean procedure time was 122 minutes (89 - 157), which was shorter than the TO group treated with traditional approaches 144 minutes (95 - 184), though this was not statistically significant (p=0.05 t-test). However, with improved experience, the procedur","PeriodicalId":239958,"journal":{"name":"Electronic poster abstracts","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123874299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"E-130 Use of walrus balloon guide catheter for proximal flow arrest during neurointerventional procedures","authors":"R. Dossani, M. Waqas, A. Baig, D. Popoola, J. Cappuzzo, H. Rai, A. Monteiro, A. Levy, E. Hashmi, J. Davies, E. Levy, A. Siddiqui","doi":"10.1136/neurintsurg-2021-snis.225","DOIUrl":"https://doi.org/10.1136/neurintsurg-2021-snis.225","url":null,"abstract":"effectiveness among the different devices. Disclosures M. Waqas: None. R. Dossani: None. M. Alkhaldi: None. J. Neveu: None. J. Cappuzzo: None. J. Liam: None. A. Khan: None. V. Lazarov: None. A. Monteiro: None. J. Davies: 1; C; National Center for Advancing Translational Sciences of the National Institutes of Health under award number KL2TR001413 to the University at Buffalo. A. Siddiqui: 2; C; Amnis Therapeutics, Boston Scientific, Canon Medical Systems USA Inc., Cerebrotech Medical Systems Inc., Cerenovus, Corindus Inc., Endostream Medical Ltd., Imperative Care, Inc. Integra LifeSciences C. 4; C; Adona Medical, Inc, Amnis Therapeutics, (Purchased by Boston Scientific October 2017), Blink TBI Inc., Buffalo Technology Partners Inc., Cerebrotech Medical Systems, Inc., Cognition Medical, Endostrea. E. Levy: 2; C; Claret Medical, GLG Consulting, Guidepoint Global, Imperative Care, Medtronic, Rebound, StimMed;. 4; C; NeXtGen Biologics, RAPID Medical, Claret Medical, Cognition Medical, Imperative Care (formerly the Stroke Project), Rebound Therapeutics, StimMed, Three Rivers Medical.","PeriodicalId":239958,"journal":{"name":"Electronic poster abstracts","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122232941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"E-026 Utilization of a large-bore 088 intracranial access catheter for complex neurointervention: experience with the tracstar LDPTM in 127 consecutive cases","authors":"J. Campos, Z. Hsu, D. Zarrin, K. Golshani, N. Beaty, M. Bender, G. Colby, L. Lin, A. Coon","doi":"10.1136/neurintsurg-2021-snis.122","DOIUrl":"https://doi.org/10.1136/neurintsurg-2021-snis.122","url":null,"abstract":"Medtronic","PeriodicalId":239958,"journal":{"name":"Electronic poster abstracts","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130704000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"E-037 Angiographic investigation of orbital vascular variations in the rabbit: Implications for intra-arterial chemotherapy models","authors":"M. Feldman, B. Poitras, Anthony B. Daniels, M. Froehler","doi":"10.1136/neurintsurg-2021-snis.133","DOIUrl":"https://doi.org/10.1136/neurintsurg-2021-snis.133","url":null,"abstract":"The external OA is the dominant arterial supply in the majority of NZWR eyes. These findings allow for successful reproduction of OA catheterization studies of IAC for retinoblastoma in NZWR. These findings may also give insight into ICA and ECA-targeting IAC techniques in humans.","PeriodicalId":239958,"journal":{"name":"Electronic poster abstracts","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130732588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"E-028 Immediate procedural outcomes of high mesh-density flow diverter placement in the upper basilar artery/basilar apex for the treatment of cerebral aneurysms: experience with 15 consecutive SurpassTM flow diversion cases","authors":"J. Campos, Z. Hsu, D. Zarrin, K. Golshani, N. Beaty, M. Bender, G. Colby, L. Lin, A. Coon","doi":"10.1136/neurintsurg-2021-snis.124","DOIUrl":"https://doi.org/10.1136/neurintsurg-2021-snis.124","url":null,"abstract":"Medtronic","PeriodicalId":239958,"journal":{"name":"Electronic poster abstracts","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116918172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"E-058 Carotid artery stenting using balloon-guide catheter for proximal occlusion as distal embolic protection","authors":"M. Nahhas, G. Meeks, G. Spiegel, Y. Alderazi, Mark J Dannenbaum, S. Sheth","doi":"10.1136/NEURINTSURG-2021-SNIS.153","DOIUrl":"https://doi.org/10.1136/NEURINTSURG-2021-SNIS.153","url":null,"abstract":"","PeriodicalId":239958,"journal":{"name":"Electronic poster abstracts","volume":"54 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133321556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"E-066 Structured reporting of aneurysm rupture risk utilizing geometric and hemodynamic analysis (STARR) – A sophisticated approach towards patient counseling","authors":"D. Behme, I. Reinitz, O. Beuing, M. Thormann, B. Neyazi, E. Sandalcioglu, A. Mpotsaris, B. Preim, P. Berg, S. Saalfeld","doi":"10.1136/neurintsurg-2021-snis.161","DOIUrl":"https://doi.org/10.1136/neurintsurg-2021-snis.161","url":null,"abstract":"E-068 Figure 1 Illustration of the automatic bleb detection algorithm for two example cases Abstracts A100 J NeuroIntervent Surg 2021;13(Suppl 1):A1–A156 on S etem er 3, 2023 by gest. P rocted by coright. http/jnis.bm jcom / J N eurotervent S urg: frst pulished as 10.1136intsurg-2021-S N IS .62 on 26 July 221. D ow nladed fom","PeriodicalId":239958,"journal":{"name":"Electronic poster abstracts","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129387664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"E-014 Use of basilic and cephalic vein access for inferior petrosal sinus sampling","authors":"L. Lin, Z. Wilseck, J. Gemmete, N. Chaudhary","doi":"10.1136/neurintsurg-2021-snis.110","DOIUrl":"https://doi.org/10.1136/neurintsurg-2021-snis.110","url":null,"abstract":"depth. This allowed for the safe deployment of MynxGrip in Patient C and Angio-Seal VIP in Patient D. Results The first two cases illustrate how using the roadmap overlay function in fluoroscopy can ensure safe inflation of the intravascular balloon component of the MynxGrip closure device. The last two cases illustrate the use of sonography-guided hydro-dissection to temporarily modify patient anatomy. In all cases, closure devices were safely deployed. Conclusion Vascular closure device use in patients with unfavorable anatomy is feasible. Safety can be enhanced with image-guided deployment in patients with arterial pathology and in patients with a thin body habitus in some cases traditionally deemed unsafe for closure. Disclosures L. Lin: None. Z. Wilseck: None. B. Daou: None. A. Pandey: 1; C; NIH, Focused Ultrasound Foundation, American Hydrocephalus Association. J. Gemmete: 1; C; NIH. N. Chaudhary: 1; C; NIH.","PeriodicalId":239958,"journal":{"name":"Electronic poster abstracts","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117112562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"E-110 Transradial, coaxial approach using surpass evolve for treatment of cerebral aneurysms","authors":"Zachary S. Hubbard, B. Saway, K. Zilinskas, G. Porto, S. A. Kasab, M. Sattur, A. Spiotta","doi":"10.1136/neurintsurg-2021-snis.205","DOIUrl":"https://doi.org/10.1136/neurintsurg-2021-snis.205","url":null,"abstract":": anterior communicating artery","PeriodicalId":239958,"journal":{"name":"Electronic poster abstracts","volume":"212 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132998657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"E-091 Outcome following mechanical thrombectomy for anterior circulation large vessel occlusion stroke in octogenarians and nonagenarians compared to younger age","authors":"P. Hendrix, M. Killer-Oberpfalzer, E. Broussalis, I. Melamed, S. Mutzenbach, S. Pikija, C. Hecker, O. Goren, R. Zand, C. Schirmer, E. Trinka, C. Griessenauer","doi":"10.1136/neurintsurg-2021-snis.186","DOIUrl":"https://doi.org/10.1136/neurintsurg-2021-snis.186","url":null,"abstract":"able. Clot porosity enables continuous fluid flow, which results in drag forces on the solid elements of the network that promote ingestion. Clot permeability is closely related to clot perviousness, which is a measure of contrast agent accumulation within clots, detectable by computed tomography angiography. Moreover, clot perviousness is associated with first pass success with thrombectomy. Clot deformation also promotes clot ingestion into a narrow bore catheter. Benchtop data has demonstrated that clots can elongate from 20% to 100% prior to breakage. 5 Therefore, greater fluid flow during thrombectomy promotes greater clot ingestion through multiple mechanisms. Greater fluid flow can also promote more rapid clot ingestion during thrombectomy since the higher velocities convect clots faster during ingestion. Decreases in thrombectomy procedure time will reduce risk and post-procedure complications. New benchtop experimental and pre-clinical data will be presented that support the relevance of these mechanical mechanisms of effective blood clot removal in neurovascular applications.","PeriodicalId":239958,"journal":{"name":"Electronic poster abstracts","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121839473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}