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E-132 Successful mechanical thrombectomy in an 11-year-old patient with emergent large vessel occlusion acute ischemic stroke related to congenital complete heart block and recent covid-19 infection
ConclusionsThis is a first known report of a successful mechanical thrombectomy in a pediatric patient due to a large vessel occlusion related to congenital complete heart block and recent COVID-19 infection.Disclosures J. Ansari: None. D. Mata Canadas: None. M. Ayub: None. J. Caskey: None. P. Simoncini: None. R. Riel-Romero: None. P. Sharma: None. D. Jordan: None. H. Cuellar: None.
Source: Journal of NeuroInterventional Surgery - July 30, 2023 Category: Neurosurgery Authors: Ansari, J., Mata Canadas, D., Ayub, M., Caskey, J., Simoncini, P., Riel-Romero, R., Sharma, P., Jordan, D., Cuellar, H. Tags: SNIS 20th annual meeting electronic poster abstracts Source Type: research

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-166 The effect of covid-19 on treatment and outcomes following ischemic stroke: a national assessment
ConclusionThis study identified a relationship between COVID-19 diagnosis and worse outcomes for each metric assessed. Most notably, even when controlling for disease-related factors, patients with COVID-19 were significantly less likely to undergo mechanical thrombectomy. Further, COVID-19 was associated with increased in-hospital mortality and worsened discharge disposition, although the exact causal relationship of this is unclear. Several factors might underly this, ranging from systemic/multisystem inflammation and worsened disease severity to logistical barriers to treatment caused by COVID-19. Further research is ne...
Source: Journal of NeuroInterventional Surgery - July 30, 2023 Category: Neurosurgery Authors: Dallas, J., Liu, K., Wenger, T., Lin, M., Ding, L., Attenello, F., Mack, W. Tags: SNIS 20th annual meeting electronic poster abstracts Source Type: research

E-241 Clinicopathologic analysis of COVID-19 associated thrombi in the setting of large vessel occlusion: a prospective case control study
ConclusionThrombi retrieved from COVID-19 positive stroke patients demonstrated RBC predominance. This finding requires further investigation using appropriate immunohistochemical techniques in a larger cohort of patients.Abstract E-241 Figure 1Abstract E-241 Figure 2COVID-19 positive patient thrombus; stained with H&E demonstrating predominantly RBCs (solid yellow arrow) with interspersed fibrin (solid black arrow) and platelets. Original magnification X100Disclosures R. Floresca: None. F. Sheriff: None. J. Lavezo: None. M. Chaudhury: None. G. Colina: None. R. Regenhardt: None. V. Gupta: None. G. Rodriguez: None. A. Maud: None.
Source: Journal of NeuroInterventional Surgery - July 30, 2023 Category: Neurosurgery Authors: Floresca, R., Sheriff, F., Lavezo, J., Chaudhury, M., Colina, G., Regenhardt, R., Gupta, V., Rodriguez, G., Maud, A. Tags: SNIS 20th annual meeting electronic poster abstracts Source Type: research

200 Covid-19 and acute ischaemic strokes in CADASIL: a systematic review of the literature
Conclusions This systematic review describes the pattern of COVID-19 associated AIS in CADASIL. Such multiple infarcts, primarily affecting the internal borderzones, have been described in patients with Covid-19 without CADASIL. We discuss possible pathophysiological mechanisms, which may be extrapolated to patients with cerebral small vessel disease, including endothelial injury causing microvascular thrombosis and hypoperfusion due to cerebral blood flow dysautoregulation.
Source: Journal of Neurology, Neurosurgery and Psychiatry - August 12, 2022 Category: Neurosurgery Authors: Noui, Y., Williams, O., Chan, N., Chandra, J., Sztriha, L. Tags: Poster presentations Source Type: research

Cerebral venous thrombosis after COVID-19 vaccination: the role for endovascular treatment
Cerebral venous thrombosis (CVT) is a unique cause of stroke. Population-based studies demonstrate an incidence of clinically significant CVT of 1.3–1.5 per 100 000 per year.1 2 This may be an underestimated incidence, as these studies were not based on review of imaging and the often benign nature of this entity may lead to underdiagnoses. In the JNIS paper published by Cleaver et al,3 the authors describe their experience with endovascular treatment (EVT) in patients with cerebral venous sinus thrombosis in patients following COVID-19 vaccination. CVT-related stroke primarily affects young adult and middle-aged pat...
Source: Journal of NeuroInterventional Surgery - August 12, 2022 Category: Neurosurgery Authors: Mahajan, A., Hirsch, J. A. Tags: COVID-19 Commentary Source Type: research

E-004 Focal intracranial vasculopathy as a manifestation of COVID-19-associated acute ischemic stroke
ConclusionTo our knowledge, our case is the first to illustrate the potential for COVID-19 infection to present as a focal intracranial vasculopathy in an otherwise healthy young-patient, resulting in acute ischemic stroke without an underlying hypercoagulable state. Rescue intracranial stenting was necessary to maintain vessel patency and restore intracranial flow.Disclosures A. Mahapatra: None. A. Witek: None. G. Toth: None.
Source: Journal of NeuroInterventional Surgery - July 26, 2021 Category: Neurosurgery Authors: Mahapatra, A., Witek, A., Toth, G. Tags: Electronic poster abstracts Source Type: research

Neurosurgery in times of a pandemic: a survey of neurosurgical services during the COVID-19 outbreak in the Veneto region in Italy.
CONCLUSIONS: This multicenter study describes the effects of a COVID-19 outbreak on neurosurgical activities in a vast region in Italy. Remodulation of neurosurgical activities has resulted in a significant reduction of elective and emergency surgeries compared to previous years. Most likely this is a combined result of cancellation of elective and postponable surgeries, increase of conservative management, increase in social restrictions, and in patients' fear of accessing hospitals. Curiously, only endovascular procedures for AIS have increased, possibly due to reduced physical activity or increased thrombosis in SARS-Co...
Source: Neurosurgical Focus - December 1, 2020 Category: Neurosurgery Authors: Raneri F, Rustemi O, Zambon G, Del Moro G, Magrini S, Ceccaroni Y, Basso E, Volpin F, Cappelletti M, Lardani J, Ferraresi S, Guida F, Chioffi F, Pinna G, Canova G, d'Avella D, Sala F, Volpin L Tags: Neurosurg Focus Source Type: research