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E-164 Symptomatic developmental venous anomaly thrombosis associated with covid-19 infection
We describe a milder case of DVA thrombosis in the setting of COVID-19 infection presenting with unilateral hemiparesis requiring medical management alone. A 41-year-old female with hypertension who presented with left hemiparesis. Non-contrast computed tomography (CT) of head revealed linear calcifications in the right centrum semiovale consistent with DVA. Magnetic resonance imaging (MRI) revealed an acute ischemic stroke in the right corona radiata adjacent to the vascular abnormality. Extensive workup for other causes of ischemic stroke was unrevealing. Cerebral angiography ruled out arteriovenous shunting and did not ...
Source: Journal of NeuroInterventional Surgery - July 30, 2023 Category: Neurosurgery Authors: Eby, B., Khasawneh, M. Tags: SNIS 20th annual meeting electronic poster abstracts Source Type: research

E-189 Outcomes of tenecteplase versus alteplase after mechanical thrombectomy in a multiethnic stroke consortium registry
ConclusionIn this prospective, multi-center stroke consortium study, IV TNK in comparison to tPA prior to MT for ischemic stroke resulted in non-inferior outcomes related to angiographic reperfusion and functional status at discharge. These findings compliment the current literature and include a large Hispanic US cohort. Further analysis will include expansion of contributing centers and use of propensity scoring.Abstract E-189 Table 1 and 2Disclosures M. Gaub: None. D. Ramaswamy: None. A. Cardentey: None. S. Bandela: None. G. Gealogo: None. J. Mascitelli: None. F. Al Saiegh: None. L. Birnbaum: 2; C; Rapid AI, Imperative Care.
Source: Journal of NeuroInterventional Surgery - July 30, 2023 Category: Neurosurgery Authors: Gaub, M., Ramaswamy, D., Cardentey, A., Bandela, S., Gealogo, G., Mascitelli, J., Al Saiegh, F., Birnbaum, L. Tags: SNIS 20th annual meeting electronic poster abstracts Source Type: research

E-203 Dynamic extrinsic compression of extracranial cerebral arteries causing recurrent strokes
ConclusionThese cases illustrate an uncommon stroke etiology from dynamic extrinsic compression of extracranial cerebral arteries. Considering such a cause should be taken into account in patients presenting with recurrent, cryptogenic strokes.Abstract E-203 Figure 1Disclosures J. Choi: None. R. Zhang: None. S. Tsappidi: None. Y. Zhang: None. F. Hui: None. S. Brown: None.
Source: Journal of NeuroInterventional Surgery - July 30, 2023 Category: Neurosurgery Authors: Choi, J., Zhang, R., Tsappidi, S., Zhang, Y., Hui, F., Brown, S. Tags: SNIS 20th annual meeting electronic poster abstracts Source Type: research

E-226 Endovascular treatment of pediatric arteriovenous shunts
ConclusionEndovascular treatment of pediatric arteriovenous shunts is extremely difficult and associated with high risks of complications. However, excellent clinical results can be achieved in specialized clinics. The choice of embolic agent should depend on the hemodynamic load of the pathological blood flow.Disclosures V. Berestov: None. K. Orlov: None. N. Strelnikov: None. A. Brusyanskaya: None. A. Somova: None.
Source: Journal of NeuroInterventional Surgery - July 30, 2023 Category: Neurosurgery Authors: Berestov, V., Orlov, K., Strelnikov, N., Brusyanskaya, A., Somova, A. Tags: SNIS 20th annual meeting electronic poster abstracts Source Type: research

E-257 Flow diversion of the ophthalmic aneurysms, outcomes in relation to the ophthalmic artery origin
ConclusionFlow diversion is safe and effective for carotid ophthalmic aneurysms treatment. Adjunct coil embolization and ophthalmic artery origin in relation to the aneurysm sac are independent factors that can influence treatment result, and should be considered when planning treatment.Disclosures M. Abdulrazzak: None. A. Alrohimi: None. A. Pandhi: None. T. Patterson: None. N. Moore: None. J. Tsai: None. M. Bain: None. M. Hussain: None. T. Masaryk: None. P. Rassmusen: None. G. Toth: None.
Source: Journal of NeuroInterventional Surgery - July 30, 2023 Category: Neurosurgery Authors: Abdulrazzak, M., Alrohimi, A., Pandhi, A., Patterson, T., Moore, N., Tsai, J., Bain, M., Hussain, M., Masaryk, T., Rassmusen, P., Toth, G. Tags: SNIS 20th annual meeting electronic poster abstracts Source Type: research

E-260 Bilateral cerebral arteriovenous shunting through pial and perforating vessels with multiple strokes and intraparenchymal hemorrhages in a patient with hepatopulmonary syndrome
This study presents a unique case of a 54-year-old male patient with a history of stroke, liver cirrhosis, portal vein thrombosis, hypertension, diabetes, and bladder cancer, who experienced multiple episodes of intracranial hemorrhages, stroke and worsening confusion over the past five years. The patient‘s clinical presentation raised suspicion for an underlying occult vasculopathy. Digital subtraction angiography (DSA) revealed multiple curvilinear, irregular, bilateral pial vessels with early high-flow arteriovenous shunting, consistent with vascular shunting that is associated with liver cirrhosis. The patient&ls...
Source: Journal of NeuroInterventional Surgery - July 30, 2023 Category: Neurosurgery Authors: Aljeradat, B., Koneru, M., Oliveira, R., Shaikh, H. Tags: SNIS 20th annual meeting electronic poster abstracts Source Type: research

Direct current cardioversion practices following percutaneous left atrial appendage closure
DiscussionThere is a widely varied practice pattern of TEE, CCTA, and OAC use with DCCV after LAAC, with a 6% rate of LAT/DRT. LAA imaging before DCCV appears prudent in all cases, especially within 1 year of LAAC, to assess for device position, PDL, and LAT/DRT.
Source: Journal of Cardiovascular Electrophysiology - July 26, 2023 Category: Cardiology Authors: Sapan Bhuta, Adnan Shaaban, Nkongho C. Binda, James Antaki, Ralph S. Augostini, Steven J. Kalbfleisch, Salvatore J. Savona, Toshimasa Okabe, Mahmoud Houmsse, Muhammad R. Afzal, Emile G. Daoud, John D. Hummel Tags: ORIGINAL ARTICLE Source Type: research

High-Resolution Magnetic Resonance Imaging of Acute Intracranial Artery Thrombus
CONCLUSIONS: HR-MRI helps clarify the pathogenesis of acute intracranial artery thrombus. The presence of peri-thrombus plaque and distal residual flow beyond the thrombus favor the stroke mechanism of atherosclerosis rather than cardioembolism.PMID:37452734 | DOI:10.1111/ene.15985
Source: Atherosclerosis - July 15, 2023 Category: Cardiology Authors: Zong-Mu-Yu Zhang Qian-Qian Si Hui-Sheng Chen Yi Yang Meng Zhang Shi-Wen Wu Yao Meng Ming-Li Li Qian-Qian Lin David S Liebeskind Yi-Ning Huang Wei-Hai Xu Source Type: research

Noninvasive In Vivo Thrombus Imaging in Patients With Ischemic Stroke or Transient Ischemic Attack
CONCLUSIONS: 18F-GP1 positron emission tomography and computed tomography angiography is a novel noninvasive method of identifying in vivo cerebrovascular thrombosis, which holds major promise in understanding the role and origin of thrombosis in stroke.REGISTRATION: URL: https://www.CLINICALTRIALS: gov; Unique identifier: NCT03943966.PMID:37439259 | DOI:10.1161/ATVBAHA.122.318204
Source: Arteriosclerosis, Thrombosis and Vascular Biology - July 13, 2023 Category: Cardiology Authors: Beth Whittington Evangelos Tzolos Rong Bing Jack Andrews Christophe Lucatelli Mark G MacAskill Adriana A S Tavares Tim Clark Nicholas L Mills Jennifer Nash Damini Dey Piotr J Slomka Norman Koglin Andrew W Stephens Edwin J R van Beek Colin Smith Marc R Dwe Source Type: research

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