bluuebunny/crossref_metadata_2025_split huggingface dataset:
Estratégias de tradução de nomes próprios da Língua Portuguesa para a Libras em contexto de interpretação simultânea midiática
Authors: Sell Fabíola Sucupira Ferreira , Rech Gabriele Cristine , Nantes Janete de Melo 
Published: March 2024

Este estudo tem por objetivo descrever as estratégias de tradução de nomes próprios de pessoas adotadas em interpretação simultânea midiática do português brasileiro para a Libras. Utiliza-se como abordagem teórica os estudos antroponomásticos e os estudos da tradução. Como metodologia, foram analisadas as estratégias de tradução de nomes de pessoas públicas, realizadas no programa Roda Viva da TV Cultura, que contam com a presença de tradutores e intérpretes de língua de sinais. Como resultados, aventaram-se hipóteses de possíveis estratégias de tradução, as quais foram parcialmente confirmadas. Como conclusões, observou-se a predominância do uso do sinal de nome em Libras nos casos em que este existia, bem como a utilização de apontação em contextos midiáticos.
A Arqueomusicologia: uma nova disciplina
Authors: Cerqueira Fábio Vergara , Chioma Daniela La 
Published: March 2024

Nos últimos 30 anos, houve aumento significativo dos questionamentos sobre a música nas civilizações antigas, especialmente no campo da arqueologia, resultando no surgimento da disciplina "Arqueomusicologia" ou "Arqueologia da Música". Os estudos nessa área vêm crescendo e abrangem épocas e regiões diversas, destacando a recente inclusão de sessões dedicadas ao tema em conferências e congressos importantes. A Arqueologia da Música é apresentada como uma disciplina emergente conectada a várias áreas centrais das sociedades antigas. Este dossiê destaca a necessidade de mais atenção aos estudos arqueomusicais no Brasil, com exemplos de pesquisadores que exploram a arqueologia da música em outras regiões do mundo, apresentando contribuições de pesquisadores brasileiros e internacionais que desempenharam papéis fundamentais em sua evolução. Ele aborda diversas perspectivas, como estudos relacionados à Iconografia da Música em suportes arqueológicos, investigações sobre os realia (instrumentos musicais antigos preservados parcial ou integralmente), incluindo achados arqueológicos com contexto e peças descontextualizadas em coleções museológicas. Além disso, abrange estudos de arqueomusicologia experimental para recriar instrumentos antigos, explorando a interseção com as Digital Humanities, como reconstituições 3D de instrumentos sonoros antigos e estudos arqueoacústicos de estruturas arquitetônicas remanescentes, como teatros, usando tecnologias avançadas. Por fim, inclui estudos etnoarqueológicos e etnomusicológicos focados em objetos relacionados à música.
Abstract 049: Effect of the ICA Lesion Severity in Outcomes after Endovascular Treatment of Acute Tandem LVO
Authors: Castillo Milagros Galecio , Farooqui Mudassir , Hassan Ameer , Jumaa Mouhammad , Divani Afshin , Ribo Marc , Abraham Michael , Petersen Nils , Fifi Johanna , Guerrero Waldo , Malik Amer , Siegler James , Nguyen Thanh , Sheth Sunil , Yoo Albert , Linares Guillermo , Janjua Nazli , Quispe‐Orozco Darko , Tekle Wondwossen , Zaidi Syed , Ikram Asad , Olivé‐Gadea Marta , Qureshi Abid , Devarajan Alex , Zhang Linda , Abdalkader Mohamad , Zevallos Cynthia , Marioni Sergio Salazar , Sooomro Jazba , Gordon Weston , Turabova Charoskhon , Vivanco‐Suarez Juan , Rodriguez‐Calienes Aaron , Mokin Maxim , Yavagal Dileep , Ortiz‐Gutierrez Santiago 
Published: March 2024

Introduction
Tandem Lesions (TLs) pose unique challenges in the endovascular management of acute ischemic stroke.(1) The absence of anterograde blood flow in the carotid occluded segment may limit the effectiveness of endovascular interventions, resulting in delayed reperfusion or suboptimal recanalization.(2,3) Thus, the presence of unpaired blood flow through the ICA in the context of TLs is believed to exacerbate the extension of ischemic lesions. (4,5) This study compared the clinical and procedural outcomes of patients with TLs and extracranial internal carotid artery occlusion versus those with stenosis.

Methods
A retrospective analysis was performed on a multicenter cohort of patients with TLs who underwent endovascular treatment. The patients were categorized into two groups: those with extracranial ICA stenosis and those with occlusion. Clinical outcomes, including functional independence, hemorrhagic events, and procedural time metrics including puncture to reperfusion time were assessed. Sensitivity analyses were conducted to evaluate these differences segregating patients according to varying degrees of stenosis, and in pre‐specified subgroups.

Results
A total of 513 patients with TLs were included in the study. 281 (54.8%) presented with ICA occlusion, and 232 (45.2%) presented stenosis >=70% (Table 1). The comparison between the stenosis and occlusion groups revealed no significant differences in the main outcomes, including mTICI 2c‐3 (47.5% vs. 50.6%, aOR 1.07, 95% CI 0.70‐1.64, p=.751) (Figure 1), mRS 0‐2 at 90 days (43.6% vs. 48.9%, aOR 0.79, 95% CI 0.52‐1.20, p=.271), sICH rates (4.7% vs. 5.6%, aOR 0.72, 95% CI 0.31‐1.71, p=.458), and puncture to reperfusion time (58 [40‐80.5] vs. 52.5 [35.2‐80], ratio 1.04, 95% CI 0.88‐1.23, p=.64). Similar analyses performed comparing different degrees of stenosis and occlusion, and in patients treated with the antegrade approach only, did not show significant differences either.

Conclusion
Our findings indicate that although more severe degrees of stenosis or occlusion of the ICA prolong the time from puncture to reperfusion, no significant differences in clinical outcomes exist. The clinical implications of these findings need to be further evaluated to fully comprehend the specific needs of patients affected by TLs.
Abstract 060: Endovascular Thrombectomy for Posterior Cerebral Artery in the National Inpatient Sample (EaT PeCAN pIeS)
Authors: Brake Aaron B , Fry Lane T , Heskett Cody E , Alkiswani Abdul‐Rahman S , LeBeau Gabriel T , De Stefano Frank , Lei Catherine M , Le Kevin C , Rouse Adam D , Peterson Jeremy A , Ebersole Koji 
Published: March 2024

Introduction
Posterior cerebral artery acute ischemic strokes (PCA‐AIS) comprise around 2% of all acute ischemic strokes and often results in significant long‐term deficits. Current guidance regarding endovascular thrombectomy (EVT) for PCA occlusion is insufficient as no randomized trials exist.

Methods
A real‐world retrospective National Inpatient Sample database analysis compared medical management (MM) versus EVT for PCA strokes. Propensity score matching based on medical co‐morbidities was applied to adjust for nonrandomization. Subgroup analysis based on their initial stroke severity was conducted, comparing outcomes within subgroups of NIHSS 0‐9, 10‐19, and ≥20. Additional subgroup analysis was conducted to compare patients receiving IVT vs those not.

Results
The study included 19,655 patients, 18,910 MM, and 745 EVT. Among the unmatched patients, the EVT cohort had significantly higher NIHSS (10.21 vs 4.67, p < 0.001). In the unmatched analysis, the EVT‐treatment group also demonstrated lower rates of favorable functional outcomes, functional independence, and higher rates of ICH and in‐patient mortality. Matched analysis showed no differences in functional outcomes but higher inpatient mortality and ICH rates in the EVT treatment group. Subgroup analysis identified higher odds of favorable functional outcomes and functional independence associated with EVT among patients presenting with intermediate NIHSS (10‐19). On further subgroup analysis, this EVT benefit was maintained only among patients receiving IVT.

Conclusion
This analysis demonstrates that, across the population, patients receiving EVT for PCA AIS are more severe and in general, have worse outcomes than patients receiving MM only. However, on matched analysis there does seem to be a significant clinical benefit associated with EVT for patients presenting with an NIHSS between 10‐19 and this benefit appears to be associated with patients who have also received IVT. More research is needed for optimal patient selection when considering EVT for PCA.
Abstract 062: N20 Potential And Imaging Biomarkers Of Functional Recovery In Acute Ischemic Stroke Patients And EVT
Authors: Piñeiro Alicia Martinez , Lucente Giuseppe , Hernandez‐Perez María , Cortés Jordi , Arbex Andrea , Cortina Meritxell Gomis , Bouix Laura Dorado , de la Ossa Natalia Pérez , Ramos‐Fransi Alba , Almendrote Miriam , Castaño Carlos , Remollo Sebastián , Sort Maria Rosa García , Collsamata Patricia Cuadras , Millán Mónica , Dávalos Antoni 
Published: March 2024

Introduction
PROMISE trial has shown high predictive accuracy of the N20 somatosensory evoked potential (SEP) response on functional recovery in patients with AIS undergoing endovascular thrombectomy (EVT). This secondary study aims to describe the association between the N20 response and imaging biomarkers of ischemic penumbra, infarct volume and collateral flow.

Methods
Presence and amplitude of the N20 response was recorded before EVT. At baseline, infarct core was automatically calculated establishing a threshold value of ADC<620x10‐6mm2/s in MR and of rCBF<30% in CTP; ischemic volume was estimated as Tmax >6 sec; and hypoperfusion intensity ratio (HIR) as the proportion of ischemic volume that also has a delay in Tmax>10s. Leptomeningeal collaterals were classified according to the Arterial Collateral Grading Scale in CTA as "poor" (absence and <50%) and optimal (>50%, equal to and greater than the contralateral), or according to the American Society of Interventional and Therapeutic Neuroradiology/Society of Interventional Radiology scale when the acquired image was dynamic MR angiography, dichotomized as incomplete collateral fill (poor collateral) (grades 0 to 2) and complete collateral fill (optimal collateral) (grades 3 and 4). Collaterals were not evaluated in the conventional angiography since we did not perform a full study to shorten the time to thrombus access. The adjusted predictive value of N20 for functional recovery was analyzed by logistic regression and compared with imaging variables by using receiver operating characteristic curves.

Results
From 223 patients studied, 99 patients had multimodal imaging with perfusion studies and N20 assessable recordings at baseline (mean age, 70y; median NIHSS, 18), 63 patients with present (N20+) and 36 with absent N20 response (N20‐). Median infarct core was 12 (0‐25) and 16 (3‐60) cc (p= 0,193), ischemic volume 81 (39‐132) and 111 (54‐188) cc (p=0,082) and the HIR 0,4 (0,2‐0,6) 0,4 (0,3‐0,6) (p=0,572), respectively. N20+ was associated to a better collateral flow (OR 2,5; [1,2‐5,3]; p=0,01). N20+ showed the highest predictive capacity of functional recovery at day 7 compared to imaging variables (Table 1) and increased 15 (4‐103) fold the likelihood of good outcome after adjusting for collateral flow 2.94 (1.10‐8.40), ASPECT score (1,17 (0,74 ‐ 1,87) and infarct core 0.98 (0.95‐1.01).

Conclusion
N20 SEP response is a powerful biomarker of functional recovery that might surrogate advanced imaging in patients with AIS evaluated for endovascular thrombectomy.
Abstract 066: Mechanical Thrombectomy Access in Africa: A Mission Thrombectomy (MT‐2020 Plus) MT‐GLASS Study Sub‐Analysis
Authors: Alejo Gabriela , Asif Kaiz , Otite Oliver , Gebreyohanns Mehari , Desai Shashvat , Jones Erica , Yavagal Dileep , Ortega‐Gutierrez Santiago 
Published: March 2024

Introduction
Despite the well‐established potent benefit of mechanical thrombectomy (MT) for large vessel occlusion (LVO) stroke, access to MT remains low globally, particularly in Africa. We compared the access to MT in Africa versus access in other regions of the globe.

Methods
Mission Thrombectomy conducted a survey in 75 countries between November 22, 2020, and February 28, 202 to assess the access to mechanical thrombectomy and its determinants. Mechanical thrombectomy access (MTA) was defined as the estimated proportion of patients with LVO receiving MT annually. The current MT operator availability was defined as ([current MT operators x 50/current annual number of estimated thrombectomy‐eligible LVOs] x 100) and the current MT center availability was defined as ([current MT centers x 150/current annual number of estimated thrombectomy‐eligible LVOs] x 100). Baseline survey responses in Africa versus the rest of the world were summarized using descriptive statistics. Between group differences in baseline characteristics were evaluated using the Wilcoxon rank‐sum test

Results
Of all 61 countries included in the final analysis, 14.8% (n=9) were from the African continent. Median MT access in Africa (0.4%) was about 10% of that of the rest of the world (4.9%). Country‐level summary characteristics of different determinants of MT access in Africa vs the rest of the world are presented in Table 1. Less than 50% of African countries (44.4%) have prehospital medical services, compared to 84.6% in the rest of the world (p‐value for comparison =0.007). In generalized linear models, LVO stroke patients in Africa had 90% lower odds of MT access when compared to the rest of the world (OR 0.10, 95%CI 0.04‐0.22).

Conclusion
Access to MT in Africa is extremely low and far below that of other regions of the globe. Public health interventions must be prioritized to increase access to MT in the continent of Africa.
Abstract 072: Risk Factors for Developing Ischemic Strokes While Taking Non‐Vitamin K Antagonist Oral Anticoagulants
Authors: Das Alvin S. , Gokcal Elif , Fouks Avia Abramovitz , Horn Mitchell , Regenhardt Robert , Viswanathan Anand , Singhal Aneesh , Schwamm Lee , Greenberg Steven , Gurol Edip 
Published: March 2024

Introduction
Over the past decade, non‐vitamin K antagonist oral anticoagulants (NOACs) have replaced warfarin as the initial strategy for stroke prevention in non‐valvular atrial fibrillation. However, ischemic strokes occurring in patients taking NOACs are becoming increasingly more frequent. In this study, we aimed to determine the clinical, echocardiographic, and neuroimaging markers associated with developing ischemic strokes in patients taking NOACs for atrial fibrillation.

Methods
Among atrial fibrillation patients on NOACs with and without ischemic stroke, brain MRIs were reviewed for the presence of neuroimaging markers of small vessel disease. Transthoracic echocardiography reports were reviewed to obtain left atrial volumes, presence of left ventricular hypertrophy, ejection fractions, and presence of wall motion abnormalities. Clinical and radiologic variables with significant differences between groups were entered into a multivariable regression model to determine predictors of ischemic stroke. In the ischemic stroke group, a Cox regression analysis was constructed to determine predictors of ischemic stroke recurrence during follow‐up.

Results
112 patients with ischemic stroke and 94 controls (free of ischemic stroke) were included in the study. The mean age (77±9 years vs. 74±11 years, p = 0.13) and proportion of patients with CHA2DS2‐VASc>2 were similar between controls and ischemic stroke patients (82% vs. 83%, p = 0.86). The variables that were significantly different between groups included apixaban use, dabigatran use, prior cerebrovascular events, hemoglobin A1c (HbA1c), left ventricular hypertrophy, left atrial volume index, and severe white matter hyperintensities. After multivariable adjustment, prior cerebrovascular events (aOR 23.86, 95% CI [6.02–94.48]), HbA1c levels (aOR 2.36, 95% CI [1.39–3.99]), left ventricular hypertrophy (aOR 2.73, 95% CI [1.11–6.71]) and left atrial volume index (aOR 1.05, 95% CI [1.01–1.08]) increased the risk of stroke, whereas apixaban use appeared to decrease the risk (aOR 0.38, 95% CI [0.16–0.92]).
Among patients with ischemic stroke, there were 103 survivors, 82 (80%) of which had follow‐up data. The median follow‐up duration for these patients was 2.6 (0.5–4.7) years. Of these 82 patients, 11 (13%) experienced an ischemic stroke during the follow‐up period. Malignancy was associated with ischemic stroke recurrence (aHR 4.90, 95% CI [1.35–18.42]) after adjustment for age and chronic renal failure.

Conclusion
Prior cerebrovascular events, diabetes, left ventricular hypertrophy, and left atrial size are associated with the development of ischemic stroke among NOAC users. Future studies should aim to investigate nonpharmacological stroke prevention strategies in patients with the vascular risk factors and echocardiographic risk markers identified in the present study.
Abstract 082: Angiographic Features and Treatment Results of Dural Arteriovenous Fistulas Cognitive Impairment
Authors: Sanchez Sebastian A. , Wendt Linder , Ching‐Jen Chen , Hayakawa Minako , Samaniego Edgar , Sheehan Jason , Kim Louis , Abecassis Issac , Levitt Michael , Meyer Michael , Guniganti Ridhima , Pabaney Akash , Lanzino Giuseppe , Giordan Enrico , Brinjikji Waleed , Bulters Diederik , Ortega Santiago , Durnford Andrew , Zipfel Gregory , Fox W , Derdeyn Colin , Smith Jessica , Gross Bradley , Amin‐Hanjani Sepideh , Alaraj Ali 
Published: March 2024

Introduction
Dural arteriovenous fistulas (dAVFs) have been associated with rapidly progressive dementia in relatively young patients. However, the specific angioarchitecture and characteristics of these dAVFs remain to be fully described. To better understand the specific characteristics of dAVFs associated with cognitive impairment (dAVF‐CI), we utilized the CONDOR multicenter database, which provides a large cohort of dAVF available. By analyzing data from patients with dAVFs‐ CI, we aimed to identify the key features distinguishing these cases and elaborate on the pathophysiology of dAVF‐CI.

Methods
CONDOR is an international multicenter database comprising 1077 (dAVFs) from 14 international centers. We conducted a retrospective analysis of the CONDOR database, focusing on patients diagnosed with dAVFs‐CI. Propensity score matching analysis was performed to compare Borden type II and type III dAVFs with and without cognitive impairment as control groups. Only dAVFs with cortical venous drainage were included as this aggressive subtype can present with non‐hemorrhagic neurologic deficits. Additionally, logistic regression was then employed to identify significant characteristics associated with dAVF‐CI.

Results
A total of 60 patients with dAVF‐CI and 60 control dAVFs were included in the analysis. The patients with dAVF‐CI had a mean age of 58 ± 18 years. It was found that all cases of dAVF‐CI exhibited venous hypertension. Additionally, there was a significant association between sinus stenosis and dAVF‐CI (OR: 2.85, 95% CI: 1.16‐7.55, p = 0.027). Moreover, dAVF‐CI cases were characterized by the presence of multiple arteriovenous shunts, with more arterial feeders (OR 1.56, 95% CI 1.22‐2.05, p <0.001) and draining veins (OR 2.05, 95% CI 1.05‐4.46, p = 0.004) compared to the control dAVFs. Venous ectasia was also found to be associated with dAVF‐CI (OR 2.38, 95% CI 1.13‐5.11, p= 0.024). Finally, some patients in which successful dAVF closure was achieved had symptom resolution during follow‐up (OR 2.86, 95% CI 0.85‐9.56, p = 0.09).

Conclusion
dAVFs‐CI tend to occur in relatively young patients and are characterized by the presence of venous hypertension. The development of sinus stenosis and venous ectasia further hinders proper drainage, contributing to the persistence of venous hypertension. Venous hypertension may impair critical structures such as the thalamus or the cortex leading to rapid cognitive impairment. Successful treatment of dAVFs‐CI can potentially reverse symptoms. Nonetheless, some dAVF‐CI may have persistent symptoms due to chronic hypertension and infarction.
Abstract 094: Sudden Onset Dysphagia: A Symptom To Be Aware of During Code Strokes
Authors: Abeer Aysha , Rodriguez Wilson , Schaper Nicholas , Ganev Yoan , Kaur Gunjanpreet , Awad Adam , Miremadi Brian 
Published: March 2024

Introduction
Lateral medullary infarction (LMI) can present with dysphagia, dysphonia, dysarthria, vertigo, nausea, skew deviation, and ipsipulsion. Patients may also exhibit sensory loss and ipsilateral Horner’s syndrome. LMS often develops because of an acute infarct from the vertebral arteries or posterior inferior cerebellar arteries (PICA). The most common mechanism of stroke usually is atherothrombosis, followed by cardioembolic, dissection and embolic source of undetermined source (ESUS). While dysphagia often accompanies the constellation of LMS symptoms, it is rarely the first symptom and has only been reported in a few cases in the literature. In this report we describe the case of a man in his 40s with acute onset dysphagia as the presenting finding ahead of an LMS diagnosis.

Methods
The patient was identified in routine clinical practice.

Results
A man in his 40s with medical history of HTN, type 2 DM and polycystic kidney disease, presented with sudden‐onset dysphagia which started while he was drinking alcohol. Later he noticed that he was unable to keep his balance. His National Health Institute Stroke Scale was 4. Neurologic exam was pertinent for left‐sided miosis, ptosis, and dysmetria. Pinprick and temperature sensation were decreased on the right arm and leg. Facial sensation to light touch was diminished on the left. Brain MRI showed an acute infarct in the left lateral medulla (Figure A). CTA showed calcified atherosclerosis of the V4 segment of left vertebral artery (Figure B). Mechanism of ischemic stroke was artery to artery thromboembolism from the left V4 segment of vertebral artery. For secondary prevention, dual antiplatelet therapy, high intensity statin, and optimization of his risk factors were initiated.

Conclusion
This case report demonstrates that dysphagia can be the initial symptom of an acute ischemic stroke. Diagnosis and recognition of an atypical presentation of lateral medullary syndrome can pose a particular challenge especially in this era of “time is brain” but is of the utmost importance to facilitate good outcomes. Patients presenting with dysphagia who have risk factors for stroke and no other obvious etiology for their symptoms should be worked up for possible cerebrovascular etiology.