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Artificial Intelligence-powered Virtual Assistant for Emergency Triage in Neurology. 神经病学紧急分诊人工智能虚拟助手。
IF 1.1 4区 医学
Neurologist Pub Date : 2025-05-01 DOI: 10.1097/NRL.0000000000000621
Hinpetch Daungsupawong, Viroj Wiwanitkit
{"title":"Artificial Intelligence-powered Virtual Assistant for Emergency Triage in Neurology.","authors":"Hinpetch Daungsupawong, Viroj Wiwanitkit","doi":"10.1097/NRL.0000000000000621","DOIUrl":"10.1097/NRL.0000000000000621","url":null,"abstract":"","PeriodicalId":49758,"journal":{"name":"Neurologist","volume":" ","pages":"190"},"PeriodicalIF":1.1,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143774628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thrombolytic Imaging-to-Needle Time as a Metric for Comparing Telemedicine versus In-Person Evaluation in Acute Ischemic Stroke. 溶栓成像到针时间是比较远程医疗与现场评估急性缺血性卒中的度量。
IF 1.1 4区 医学
Neurologist Pub Date : 2025-05-01 DOI: 10.1097/NRL.0000000000000618
Andrea Loggini, Faddi G Saleh Velez, Jessie Henson, Julie Wesler, Jonatan Hornik, Amber Schwertnam, Karam Dallow, Joaquin Grimaldi, Alejandro Hornik
{"title":"Thrombolytic Imaging-to-Needle Time as a Metric for Comparing Telemedicine versus In-Person Evaluation in Acute Ischemic Stroke.","authors":"Andrea Loggini, Faddi G Saleh Velez, Jessie Henson, Julie Wesler, Jonatan Hornik, Amber Schwertnam, Karam Dallow, Joaquin Grimaldi, Alejandro Hornik","doi":"10.1097/NRL.0000000000000618","DOIUrl":"10.1097/NRL.0000000000000618","url":null,"abstract":"<p><strong>Objectives: </strong>Door-to-needle time (DTN) is standard for measuring the efficiency of thrombolytic administration in acute ischemic stroke, with guidelines recommending DTN <60 minutes. DTN can be divided into door-to-imaging time (DIT) and imaging-to-needle time (ITN), separated by arrival at the CT scanner. We hypothesize that ITN is more accurate for comparing the mode of evaluation for stroke patients treated with thrombolytics.</p><p><strong>Methods: </strong>This is a retrospective cohort study of stroke patients treated with thrombolytics at Southern Illinois Health care. Data on demographics, clinical presentation, stroke metrics, thrombolytic complications, and mRS at 1-month were reviewed. Multivariate logistic regression models were applied to evaluate predictors of DTN, ITN, and DIT, with OR and 95% CI. P -value was set at 0.05.</p><p><strong>Results: </strong>Out of 287 patients, 170 were evaluated by telemedicine, 117 in-person. The 2 groups were comparable in demographics and stroke severity. Telemedicine had longer median DTN, in minutes [55 (43 to 70) vs. 42 (34 to 62), P <0.01], and median ITN, in minutes [43 (35-58) vs. 32 (25-48), P <0.01]. There was no statistical difference in DIT between the 2 groups. Adjusted for stroke severity and age, telemedicine was associated with lower odds of DTN <60 minutes (OR: 0.553, 95% CI: 0.328-0.931, P =0.026) and ITN <35 minutes (OR: 0.265, 95% CI: 0.159-0.441, P <0.01). However, telemedicine was not independently associated with DIT <25 minutes, which was instead inversely correlated with age (OR: 0.974, 95% CI: 0.951-0.997, P =0.03).</p><p><strong>Conclusions: </strong>ITN represents a more accurate metric for comparing telemedicine and in-person evaluations than DTN, as it excludes stroke-specific processes of care and patient-specific factors that are intrinsic to DTN and unrelated to the modality of evaluation.</p>","PeriodicalId":49758,"journal":{"name":"Neurologist","volume":" ","pages":"170-174"},"PeriodicalIF":1.1,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143631002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stroke-Related Factors Influencing Thrombolysis Eligibility and Outcomes. 影响溶栓资格和结果的卒中相关因素。
IF 1.1 4区 医学
Neurologist Pub Date : 2025-05-01 DOI: 10.1097/NRL.0000000000000609
Maurizio Giorelli, Maria Stella Aniello, Daniele Liuzzi, Alfredo De Liso, Donatella Accavone, Francesco Negri
{"title":"Stroke-Related Factors Influencing Thrombolysis Eligibility and Outcomes.","authors":"Maurizio Giorelli, Maria Stella Aniello, Daniele Liuzzi, Alfredo De Liso, Donatella Accavone, Francesco Negri","doi":"10.1097/NRL.0000000000000609","DOIUrl":"10.1097/NRL.0000000000000609","url":null,"abstract":"<p><strong>Objective: </strong>Intravenous thrombolysis (IVT) improves outcomes of acute ischemic stroke (AIS) when timely administered. The aim of this study was to collect and analyze data of stroke-related factors which may influence the performance of stroke-related rescue chains, the use of IVT, and patients' outcomes.</p><p><strong>Methods: </strong>This study enrolled patients with AIS admitted to our Stroke Unit (SU) between January 1, 2023, and December 31, 2023. We investigated whether age, occurrence of baseline disabling deficits, stroke severity, or stroke location influenced the median Onset-to-Door Time (ODT), the chance of receiving IVT, or the outcomes of AIS in our facility.</p><p><strong>Results: </strong>A total of 208 patients were enrolled. Patients who received IVT had higher baseline National Institute of Health Stroke Scale (NIHSS) scores (12.26±1.2) than those who did not (6.77±0.51) ( P <0.0001). Patients with IVT further showed a greater strength deficit, less ataxia, and lower median ODT (108±20 min) than patients with NO IVT (720±67) ( P <0.0001). Weakness of the lower limbs and higher total NIHSS predicted ODT≤ 3.5 hours and the use of IVT. Ataxia and Posterior Circulation Stroke slowed the rescue chain and were negatively correlated with the use of IVT.</p><p><strong>Conclusions: </strong>Stroke-related factors may slow the rescue chain and affect the application of IVT for AIS. New evaluation strategies are warranted to overcome the detrimental effects of these factors and to allow clinicians to effectively manage strokes of any severity and location.</p>","PeriodicalId":49758,"journal":{"name":"Neurologist","volume":" ","pages":"164-169"},"PeriodicalIF":1.1,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143257156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Shortened NIHSS for Rapid Stroke Assessment in Emergency Care Settings. 缩短NIHSS快速卒中评估在紧急护理设置。
IF 1.1 4区 医学
Neurologist Pub Date : 2025-05-01 DOI: 10.1097/NRL.0000000000000608
Sama Rahnemayan, Alireza Ala, Nasrin Taghizadeh, Elyar Sadeghi-Hokmabadi, Ipak Entezari, Samad Shams Vahdati
{"title":"Shortened NIHSS for Rapid Stroke Assessment in Emergency Care Settings.","authors":"Sama Rahnemayan, Alireza Ala, Nasrin Taghizadeh, Elyar Sadeghi-Hokmabadi, Ipak Entezari, Samad Shams Vahdati","doi":"10.1097/NRL.0000000000000608","DOIUrl":"10.1097/NRL.0000000000000608","url":null,"abstract":"<p><strong>Objectives: </strong>The National Institutes of Health Stroke Scale (NIHSS) is widely used to assess ischemic stroke severity, but its full 11-item version can be time-consuming. This study evaluates the NIHSS-8, a shortened version, for its efficacy compared with NIHSS-11 in an emergency department setting.</p><p><strong>Methods: </strong>A cohort study was conducted from May 2018 to May 2019 at Imam Reza Hospital, Tabriz, Iran. Patients with suspected acute stroke were assessed using both NIHSS-11 and NIHSS-8. The modified Rankin Scale (mRS) was used to evaluate patient outcomes at discharge. Correlations between NIHSS-8, NIHSS-11, and mRS were analyzed, and diagnostic performance metrics were calculated.</p><p><strong>Results: </strong>The study included 292 patients with a mean age of 70.40 years. Approximately 68.5% of patients were categorized as having moderate stroke severity using NIHSS-11, with a similar 67.1% using NIHSS-8. The correlation between NIHSS-11 and NIHSS-8 scores was high (intraclass correlation coefficient of 0.970). Both scales showed strong relationships with mRS at discharge but were not significantly correlated with long-term outcomes. NIHSS-8 demonstrated a sensitivity of 97.5% and specificity of 96.9%, while NIHSS-11 showed 100% sensitivity and 96.9% specificity.</p><p><strong>Conclusions: </strong>NIHSS-8 is a reliable and efficient alternative to NIHSS-11 for assessing stroke severity in emergency departments. It provides high sensitivity and specificity while being less time-consuming, making it suitable for rapid stroke assessment and triage.</p>","PeriodicalId":49758,"journal":{"name":"Neurologist","volume":" ","pages":"150-154"},"PeriodicalIF":1.1,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142899862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enoxaparin Failure in Patient With Cerebral Venous Sinus Thrombosis and Prothrombin G20210A Mutation: Case Report. 脑静脉窦血栓和凝血酶原 G20210A 突变患者的依诺肝素治疗失败:病例报告。
IF 1.1 4区 医学
Neurologist Pub Date : 2025-05-01 DOI: 10.1097/NRL.0000000000000591
Adithya Polavarapu, Anita Bhushan, Walter Duarte-Celada, Thomas Windisch, Bharat Bhushan
{"title":"Enoxaparin Failure in Patient With Cerebral Venous Sinus Thrombosis and Prothrombin G20210A Mutation: Case Report.","authors":"Adithya Polavarapu, Anita Bhushan, Walter Duarte-Celada, Thomas Windisch, Bharat Bhushan","doi":"10.1097/NRL.0000000000000591","DOIUrl":"10.1097/NRL.0000000000000591","url":null,"abstract":"<p><strong>Introduction: </strong>Cerebral venous sinus thrombosis (CVST) is a rare, serious, and complex cerebrovascular disease. The prothrombin G20210A mutation is the second most common inherited thrombophilia and is considered to be one of the etiologies of CVST. The optimal heparinoid medication for treatment remains a topic of debate.</p><p><strong>Case report: </strong>This case report describes a young woman with CVST who did not respond to low-molecular-weight heparin (LMWH). The patient was initially treated with LMWH; however, her symptoms and clot burden in the sagittal sinus worsened, and coagulation studies showed no evidence of therapeutic anticoagulation despite good compliance. Unfractionated heparin was then initiated, and the patient's symptoms improved dramatically within 24 hours, along with the recanalization of the cerebral venous sinuses. Genetic testing revealed a heterozygous mutation in the prothrombin gene (G20210A). This mutation is a known risk factor for CVST. However, it is unclear why the patient did not respond to LMWH but responded appropriately to unfractionated heparin.</p><p><strong>Conclusion: </strong>This case report highlights the potential for LMWH resistance in patients with CVST and prothrombin gene mutations. These findings also emphasize the importance of close monitoring of coagulation parameters and clinical response in patients with CVST receiving LMWH.</p>","PeriodicalId":49758,"journal":{"name":"Neurologist","volume":" ","pages":"175-181"},"PeriodicalIF":1.1,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12045334/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142590712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ethnicity as a Risk Factor for Early Neurological Deterioration: A Post Hoc Analysis of the Secondary Prevention of Small Subcortical Strokes Trial. 种族是早期神经功能恶化的危险因素:对皮质下脑卒中二级预防试验的事后分析。
IF 1.1 4区 医学
Neurologist Pub Date : 2025-03-01 DOI: 10.1097/NRL.0000000000000605
Eric D Goldstein, Sabrina Q R Liew, Liqi Shu, Alicia Rocha, Shadi Yaghi
{"title":"Ethnicity as a Risk Factor for Early Neurological Deterioration: A Post Hoc Analysis of the Secondary Prevention of Small Subcortical Strokes Trial.","authors":"Eric D Goldstein, Sabrina Q R Liew, Liqi Shu, Alicia Rocha, Shadi Yaghi","doi":"10.1097/NRL.0000000000000605","DOIUrl":"10.1097/NRL.0000000000000605","url":null,"abstract":"<p><strong>Objectives: </strong>Nearly 25% of those with a small vessel stroke will develop early neurological deterioration (END). The objectives of this study were to identify clinical risk factors for small vessel stroke-related END and its associated impact on functional outcomes in an ethnically diverse data set.</p><p><strong>Methods: </strong>We performed a post hoc analysis of the \"Secondary Prevention of Small Subcortical Strokes\" trial. The primary outcome was END defined as progressive or stuttering stroke-related neurological symptoms. Standard descriptive and inferential statistical methods were used for analysis. Functional outcomes are reported by modified Rankin Scale score and analyzed by the Wilcoxon signed-rank test.</p><p><strong>Results: </strong>In all, 69 participants met the inclusion criteria; 21 (30%) had END. Of the cohort, Spanish, Hispanic, or Latino ethnicity (grouping per trial definition) most frequently developed END [11 (52.4%) vs 4 (8.3%), P < 0.001] with a higher adjusted likelihood of END (odds ratio: 14.1, 95% CI: 2.57-76.7, P = 0.002). Black or African-American race less commonly had END [3 (14.3%) vs 21 (43.8%), P = 0.03] but lost significance after adjustment (odds ratio: 1.46, 95% CI: 0.26-8.17, P = 0.67) due to powering. END was associated with a higher mean modified Rankin Scale (2.06 ± 0.94 vs 1.17 ± 0.79, P = 0.006) but did not differ in the shift analysis.</p><p><strong>Conclusions: </strong>We found that Spanish, Hispanic, or Latino ethnicity was the most consistent risk factor for END though it was without meaningful functional outcome differences.</p>","PeriodicalId":49758,"journal":{"name":"Neurologist","volume":" ","pages":"116-120"},"PeriodicalIF":1.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142796509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Efficacy for Hypertensive Intracerebral Hemorrhage Between Neuroendoscopic Surgery and Conservative Treatment: A Retrospective Observational Study. 神经内镜手术与保守治疗对高血压性脑出血的疗效:一项回顾性观察研究。
IF 1.1 4区 医学
Neurologist Pub Date : 2025-03-01 DOI: 10.1097/NRL.0000000000000597
Guojin Huo, Yanping Lan, Yi Feng, Xiang Gao, Chen Chen
{"title":"The Efficacy for Hypertensive Intracerebral Hemorrhage Between Neuroendoscopic Surgery and Conservative Treatment: A Retrospective Observational Study.","authors":"Guojin Huo, Yanping Lan, Yi Feng, Xiang Gao, Chen Chen","doi":"10.1097/NRL.0000000000000597","DOIUrl":"10.1097/NRL.0000000000000597","url":null,"abstract":"<p><strong>Objectives: </strong>This study aims to investigate the efficacy of neuroendoscopic surgery in the treatment of hypertensive intracerebral hemorrhage (HICH).</p><p><strong>Methods: </strong>A total of 193 patients diagnosed with HICH were divided into 2 groups in this study: the observation group (n=101) received neuroendoscopic surgery, whereas the control group (n=92) underwent conservative treatment. Then, the outcomes between these 2 groups were compared and assessed.</p><p><strong>Results: </strong>In the pretreatment phase, there were no significant differences in the levels of inflammation and neurological function scores between these 2 groups ( P >0.05). After 3 months of treatment, the observation group displayed significantly shorter median hospital stay, lower average hospital costs, and faster hematoma resorption time, along with reduced levels of tumor necrosis factor-alpha (TNF-α), C-reactive protein (CRP), interleukin (IL)-6 and IL-8, aquaporin-4 (AQP4), macrophage migration inhibitory factor (MIF), matrix metalloproteinase-9 (MMP-9), granulocyte macrophage colony stimulating factor (GM-CSF), Nerve Deficiency Scale (NDS), Graeb score, and national institute of health stroke scale (NIHSS) compared with the control group ( P <0.05). In addition, the observation group exhibited higher rate of hematoma clearance and better glasgow outcome scale (GOS) score compared with the control group ( P <0.05). The effective treatment rate in the observation group was notably superior to that in the control group (89.11% vs. 73.91%, P <0.05).</p><p><strong>Conclusions: </strong>Neuroendoscopic surgery is an effective treatment for HICH, with alleviating the inflammatory response and enhancing the neurological function. The treatment shows promising outcomes and justifies extensive implementation.</p>","PeriodicalId":49758,"journal":{"name":"Neurologist","volume":" ","pages":"109-115"},"PeriodicalIF":1.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142689561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Syncope Induced by Dynamic Head and Shoulder Motion in the Setting of Left Subclavian Stenosis. 左锁骨下狭窄患者动态头肩运动诱发晕厥。
IF 1.1 4区 医学
Neurologist Pub Date : 2025-03-01 DOI: 10.1097/NRL.0000000000000607
Forrest W Fearington, Katarina Alajbegovic, Jonathan M Scott, Waleed Brinjikji, Carmen R Holmes, Muhib Khan
{"title":"Syncope Induced by Dynamic Head and Shoulder Motion in the Setting of Left Subclavian Stenosis.","authors":"Forrest W Fearington, Katarina Alajbegovic, Jonathan M Scott, Waleed Brinjikji, Carmen R Holmes, Muhib Khan","doi":"10.1097/NRL.0000000000000607","DOIUrl":"10.1097/NRL.0000000000000607","url":null,"abstract":"<p><strong>Introduction: </strong>Dynamic vertebral artery insufficiency is a rare vascular phenomenon characterized by insufficient flow of the posterior cerebral circulation induced by dynamic motion of the head. Prior case reports have been limited to vertebral artery occlusion by cervical osteophytes or other structural impingements.</p><p><strong>Case report: </strong>In this case report, we discuss the unusual case of a 61-year-old female with a history of vertigo, diplopia, nystagmus, and left subclavian stenosis admitted to the hospital for syncope elicited by a left head turn and left shoulder raise. Transcranial Doppler (TCD) ultrasound and angiography showed evidence of dynamic vertebrobasilar insufficiency elicited by a left-head turn. Percutaneous stenting of the left subclavian artery led to the resumption of normal vessel flow as assessed by TCD and the resolution of the patient's symptoms.</p><p><strong>Conclusions: </strong>This case highlights an unusual cause of dynamic vertebrobasilar insufficiency induced by head turn and/or left shoulder raise due to subclavian stenosis, diagnosed by TCD and angiography, and successfully treated with subclavian artery stenting.</p>","PeriodicalId":49758,"journal":{"name":"Neurologist","volume":" ","pages":"121-122"},"PeriodicalIF":1.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143014732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Diffusion-Weighted Imaging-Based Radiomics Features and Machine Learning Method to Predict the 90-Day Prognosis in Patients With Acute Ischemic Stroke. 基于弥散加权成像的放射组学特征和机器学习方法预测急性缺血性脑卒中患者90天预后。
IF 1.1 4区 医学
Neurologist Pub Date : 2025-03-01 DOI: 10.1097/NRL.0000000000000599
Guirui Li, Yueling Zhang, Jian Tang, Shijian Chen, Qianqian Liu, Jian Zhang, Shengliang Shi
{"title":"Diffusion-Weighted Imaging-Based Radiomics Features and Machine Learning Method to Predict the 90-Day Prognosis in Patients With Acute Ischemic Stroke.","authors":"Guirui Li, Yueling Zhang, Jian Tang, Shijian Chen, Qianqian Liu, Jian Zhang, Shengliang Shi","doi":"10.1097/NRL.0000000000000599","DOIUrl":"10.1097/NRL.0000000000000599","url":null,"abstract":"<p><strong>Objectives: </strong>The evaluation of the prognosis of patients with acute ischemic stroke (AIS) is of great significance in clinical practice. We aim to evaluate the feasibility and effectiveness of diffusion-weighted imaging (DWI) image-based radiomics features and machine learning methods in predicting 90-day prognosis among patients with AIS.</p><p><strong>Patients and methods: </strong>We enrolled a total of 171 patients with AIS in this study, including 134 patients with a good prognosis and 37 patients with a poor prognosis, and collected the patients' clinical and DWI image data. Radiomics features from manually sketched ischemic lesions were extracted using the Pyradiomics package of Python, and the best radiomics features were selected by a t test and the least absolute shrinkage and selection operator. The radiomics model and clinical model were constructed using support vector machine and logistic regression, respectively, and the predictive performance of each model was evaluated.</p><p><strong>Results: </strong>We selected 9 features from a total of 851 radiomics features to build the final radiomics model. For predicting the poor prognosis of patients with AIS, the area under the curves, accuracy, sensitivity and specificity of the clinical model, radiomics model in the training set and radiomics model in the testing set were 0.865, 0.930 and 0.906, 81.3%, 92.0% and 90.0%, 81.1%, 76.0% and 75.0%, and 81.3%, 97.0% and 95.0%, respectively.</p><p><strong>Conclusions: </strong>DWI image-based radiomics features and machine learning methods can accurately predict the 90-day prognosis of patients with AIS, and the radiomics model is superior to the clinical model in predicting prognosis.</p>","PeriodicalId":49758,"journal":{"name":"Neurologist","volume":"30 2","pages":"93-101"},"PeriodicalIF":1.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11864048/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143544116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Outcomes and Antithrombotic Regimens in Nonvalvular Atrial Fibrillation Patients With Acute Ischemic Stroke and Competing Large-Artery Atherosclerosis. 急性缺血性卒中合并大动脉粥样硬化的非瓣膜性心房颤动患者的预后和抗血栓治疗方案
IF 1.1 4区 医学
Neurologist Pub Date : 2025-03-01 DOI: 10.1097/NRL.0000000000000590
Sufang Xue, Risu Na, Jing Dong, Xue Qiu, Min Wei, Qi Kong, Qiujia Wang, Fangyu Li, Yan Wang
{"title":"Outcomes and Antithrombotic Regimens in Nonvalvular Atrial Fibrillation Patients With Acute Ischemic Stroke and Competing Large-Artery Atherosclerosis.","authors":"Sufang Xue, Risu Na, Jing Dong, Xue Qiu, Min Wei, Qi Kong, Qiujia Wang, Fangyu Li, Yan Wang","doi":"10.1097/NRL.0000000000000590","DOIUrl":"10.1097/NRL.0000000000000590","url":null,"abstract":"<p><strong>Objectives: </strong>This study aimed to investigate the outcomes and effectiveness of different antithrombotic regimens at discharge in nonvalvular atrial fibrillation (NVAF) patients with acute ischemic stroke (AIS) and competing large artery atherosclerosis (LAA) mechanisms.</p><p><strong>Methods: </strong>In an observational study, we retrospectively analyzed the clinical and follow-up data of NVAF patients with AIS from January 2018 to December 2021 (NCT04080830). The subjects were grouped into 2 groups based on the presence or absence of competing LAA mechanisms. Stroke severity, short-term prognosis, and ischemic recurrence (a composite of ischemic stroke/TIA, myocardial infarction, or systemic embolism after index stroke), were compared between the 2 groups. Antithrombotic regimens at discharge were further categorized into antiplatelet and anticoagulant subgroups to analyze their effectiveness.</p><p><strong>Results: </strong>Five hundred-one NVAF patients with AIS (129 with and 372 without competing LAA mechanisms) were included. Compared with the other group, the group with competing LAA mechanisms had a higher proportion of patients with a nondisabling mRS score (P <0.001), lower mortality rates at the 90-day follow-up ( P =0.048), and higher 180-day ischemic outcomes ( P =0.023). Subgroup analysis showed that the ischemic outcomes were not significantly different ( P =0.166) between the anticoagulant and antiplatelet subgroups in patients with competing LAA mechanisms. In contrast, it was numerically higher in the anticoagulant subgroup.</p><p><strong>Conclusion: </strong>NVAF patients with AIS due to competing LAA mechanisms had mild severity and a comfortable short-term prognosis; however, these patients had a higher risk of ischemic events. The optimal antithrombotic regimens in these patients remain unclear, and stroke mechanisms should be considered.</p>","PeriodicalId":49758,"journal":{"name":"Neurologist","volume":" ","pages":"102-108"},"PeriodicalIF":1.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142683504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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