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Zhang L, Ma J, Wang M, Zhang L, Sun W, Ji H, Yue C, Huang J, Zi W, Li F, Guo C, Wang P. The Association Between National Institutes of Health Stroke Scale Score and Clinical Outcome in Patients with Large Core Infarctions Undergoing Endovascular Treatment. Neurol Ther 2024; 13:563-581. [PMID: 38427274 PMCID: PMC11136902 DOI: 10.1007/s40120-024-00588-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Accepted: 02/07/2024] [Indexed: 03/02/2024] Open
Abstract
INTRODUCTION This study aimed to analyze the association between baseline National Institutes of Health Stroke Scale (NIHSS) scores and clinical outcomes in patients with large core infarctions undergoing endovascular treatment (EVT), a relationship that remains unclear. METHODS Data were obtained from the MAGIC study, a prospective multicenter cohort study focusing on patients with acute large core ischemic stroke. This analysis evaluated the impact of NIHSS scores on EVT outcomes in patients with large core infarctions. Primary outcome metrics included favorable outcomes (modified Rankin Scale [mRS] of 0-3 at 90 days), while secondary outcomes encompassed shifts in mRS scores, functional independence (mRS score of 0-2), mRS score of 0-4, and successful recanalization rates. Adverse events considered were symptomatic intracranial hemorrhage (sICH) and mortality. RESULTS A total of 490 patients were enrolled in this study. Higher baseline NIHSS scores were inversely correlated with favorable outcomes (adjusted odds ratio [OR] in model 3, 0.848 [0.797-0.903], P < 0.001), particularly in patients with NIHSS scores above 20 (adjusted OR in model 3, 0.518 [0.306-0.878] vs. 0.290 [0.161-0.523]). Regarding adverse events, higher baseline NIHSS scores significantly correlated with increased 90-day mortality rates (adjusted OR in model 3, 1.129 [1.072-1.189], P < 0.001). This correlation became insignificant when baseline NIHSS scores exceeded 22. Additionally, baseline NIHSS scores partially mediated the association between age (indirect effect = - 0.0005, 19.39% mediated) and sex (indirect effect = 0.0457, 25.08% mediated) with the primary outcome. CONCLUSIONS The findings indicate that higher baseline NIHSS scores correlate with poorer outcomes and increased mortality, particularly when scores exceed 20. Moreover, age and sex indirectly influence favorable outcomes through their association with baseline NIHSS scores.
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Affiliation(s)
- Lingyu Zhang
- School of Clinical Medicine, Shandong Second Medical University, Weifang, 261000, Shandong, China
- Department of Neurology, Weihai Municipal Hospital, Cheeloo College of Medicine, Shandong University, No. 70, Heping Road, Huancui District, Weihai City, Shandong Province, China
| | - Jinfu Ma
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, 400037, China
| | - Mengmeng Wang
- School of Clinical Medicine, Shandong Second Medical University, Weifang, 261000, Shandong, China
- Department of Neurology, Weihai Municipal Hospital, Cheeloo College of Medicine, Shandong University, No. 70, Heping Road, Huancui District, Weihai City, Shandong Province, China
| | - Lin Zhang
- Department of Cardiology, Yantai Penglai Hospital of Traditional Chinese Medicine, Yantai, China
| | - Wenzhe Sun
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, 400037, China
| | - Honghong Ji
- Department of Neurology, Weihai Municipal Hospital, Cheeloo College of Medicine, Shandong University, No. 70, Heping Road, Huancui District, Weihai City, Shandong Province, China
- The Second School of Clinical Medicine of Binzhou Medical University, Yantai, Shandong, China
| | - Chengsong Yue
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, 400037, China
| | - Jiacheng Huang
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, 400037, China
| | - Wenjie Zi
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, 400037, China
| | - Fengli Li
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, 400037, China
| | - Changwei Guo
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, 400037, China.
| | - Pengfei Wang
- Department of Neurology, Weihai Municipal Hospital, Cheeloo College of Medicine, Shandong University, No. 70, Heping Road, Huancui District, Weihai City, Shandong Province, China.
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Qureshi AI, Grintal A, DeGaetano AC, Goren M, Lodhi A, Golan D, Hassan AE. Effect of Radiographic Contrast Media Shortage on Stroke Evaluation in the United States. AJNR Am J Neuroradiol 2023; 44:901-907. [PMID: 37414453 PMCID: PMC10411843 DOI: 10.3174/ajnr.a7924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 05/31/2023] [Indexed: 07/08/2023]
Abstract
BACKGROUND AND PURPOSE We performed this study to identify the effect of the nationwide iodinated contrast media shortage due to reduction in GE Healthcare production, initiated on April 19, 2022, on the evaluation of patients with stroke. MATERIALS AND METHODS We analyzed the data on 72,514 patients who underwent imaging processed with commercial software in a sample of 399 hospitals in United States from February 28, 2022, through July 10, 2022. We quantified the percentage change in the daily number of CTAs and CTPs performed before and after April 19, 2022. RESULTS The daily counts of individual patients who underwent CTAs decreased (a 9.6% reduction, P = .002) from 1.584 studies per day per hospital to 1.433 studies per day per hospital. The daily counts of individual patients who underwent CTPs decreased (a 25.9% reduction, P = .003) from 0.484 studies per day per hospital to 0.358 studies per day per hospital. A significant reduction in CTPs using GE Healthcare contrast media (43.06%, P < .001) was seen but not in CTPs using non-GE Healthcare contrast media (increase by 2.93%, P = .29). The daily counts of individual patients with large-vessel occlusion decreased (a 7.69% reduction) from 0.124 per day per hospital to 0.114 per day per hospital. CONCLUSIONS Our analysis reported changes in the use of CTA and CTP in patients with acute ischemic stroke during the contrast media shortage. Further research needs to identify effective strategies to reduce the reliance on contrast media-based studies such as CTA and CTP without compromising patient outcomes.
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Affiliation(s)
- A I Qureshi
- From the Zeenat Qureshi Stroke Institute and Department of Neurology (A.I.Q., A.L.), University of Missouri, Columbia, Missouri
| | - A Grintal
- Viz.ai (A.G., A.C.D., M.G., D.G.), San Francisco, California
| | - A C DeGaetano
- Viz.ai (A.G., A.C.D., M.G., D.G.), San Francisco, California
| | - M Goren
- Viz.ai (A.G., A.C.D., M.G., D.G.), San Francisco, California
| | - A Lodhi
- From the Zeenat Qureshi Stroke Institute and Department of Neurology (A.I.Q., A.L.), University of Missouri, Columbia, Missouri
| | - D Golan
- Viz.ai (A.G., A.C.D., M.G., D.G.), San Francisco, California
| | - A E Hassan
- Department of Neuroscience (A.E.H.), Valley Baptist Medical Center, Harlingen, Texas
- Department of Neurology (A.E.H.), University of Texas Rio Grande Valley School of Medicine, Harlingen, Texas
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Sun D, Liu R, Huo X, Jia B, Tong X, Wang A, Ma G, Ma N, Gao F, Mo D, Miao Z. Endovascular treatment for acute ischaemic stroke due to medium vessel occlusion: data from ANGEL-ACT registry. Stroke Vasc Neurol 2022; 8:svn-2022-001561. [PMID: 36219803 PMCID: PMC9985797 DOI: 10.1136/svn-2022-001561] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 08/03/2022] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES To investigate the safety and efficacy of endovascular treatment (EVT) for acute medium vessel occlusion (MeVO) in the anterior circulation and to explore the independent predictors of the 90-day good outcome for such patients. METHODS Data from ANGEL-ACT Registry were analysed in our study. The outcomes, such as the modified Rankin Scale (mRS) at 90 days, successful recanalisation rate and symptomatic intracranial haemorrhage (SICH) rate, were compared between MeVO and acute large vessel occlusions (LVO). Then, the independent predictors of the good outcome at 90 days in MeVO patients were determined by the logistic regression analyses. RESULTS We included 1032 subjects in the analysis, of which, 147 were MeVO and 885 were LVO. mRS at 90 days distribution (3 (0-4) vs 3 (0-5), common odds ratio (OR) =1.00, 95% confidence interval (CI) 0.73 to 1.38, p=0.994), SICH rate (4.8% vs 8.9%; OR=0.59, 95% CI 0.26 to 1.34, p=0.205) and successful recanalisation rate (89.8% vs 89.7%; OR=1.00 95% CI 0.51 to 1.93, p=0.992) were similar between the MeVO and LVO groups after adjusting for the confounders. We identified that baseline neutrophil-to-lymphocyte ratio ≤4.1 (OR=2.13, 95% CI 1.14 to 3.99, p=0.019), baseline National Institutes of Health Stroke Scale ≤14 (OR=1.96, 95% CI 1.02 to 3.80, p=0.045) and mechanical thrombectomy passes ≤1 (OR=2.16, 95% CI 1.14 to 4.11, p=0.021) were independent predictors of the 90-day good outcome in MeVO patients undergoing EVT. CONCLUSIONS Patients with MeVO achieved similar 90-day mRS, SICH rate and successful recanalisation rate after EVT compared with patients with LVO. Several independent predictors of 90-day good outcome in MeVO patients undergoing EVT were determined, which should be highly considered in MeVO stroke management.
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Affiliation(s)
- Dapeng Sun
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Raynald Liu
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Department of Neurosurgery, Beijing Fengtai You anmen Hospital, Beijing, China
| | - Xiaochuan Huo
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Baixue Jia
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Xu Tong
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Anxin Wang
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Beijing, China
| | - Gaoting Ma
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Ning Ma
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Feng Gao
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Dapeng Mo
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Zhongrong Miao
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
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Ma YC, Chen AQ, Guo F, Yu J, Xu M, Shan DD, Zhang SH. The value of whole-brain CT perfusion imaging combined with dynamic CT angiography in the evaluation of pial collateral circulation with middle cerebral artery occlusion. Technol Health Care 2022; 30:967-979. [PMID: 35275581 DOI: 10.3233/thc-213118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Middle cerebral artery (MCA) occlusion is extremely common, especially unilateral artery, which can result in a significant incidence of cerebral infarction. OBJECTIVE To assess the value of whole-brain computed tomography perfusion (CTP) imaging combined with dynamic CT angiography (dCTA) in the evaluation of pial collateral circulation in patients with MCA occlusion. METHODS Whole-brain CTP and dCTA images were acquired in 58 patients with unilateral MCA occlusion. All patients were divided into three groups according to the American Society of Interventional and Therapeutic Neuroradiology/Society of Interventional Radiology (ASITN/SIR) collateral score (by CTA). The CTP parameters were analysed, including relative cerebral blood flow (rCBF), relative cerebral blood volume (rCBV), relative mean transit time (rMTT), and relative time to peak (rTTP). Patients were followed up with the modified Rankin scale (mRS). All cases in this study were confirmed by DSA. RESULTS The CTP parameters of the MCA blood supply area on the affected side of patients with different degrees of stenosis were significantly different from those on the unaffected side. There are significant differences in the CTP parameters and openings of the Willis circle in patients with different degrees of stenosis. Significant differences were found in the number of patients with good prognosis. CONCLUSIONS Whole-brain CT perfusion combined with dynamic CTA can structurally and functionally evaluate the establishment of pial collateral circulation and its effect on cerebral hemodynamic changes.
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Affiliation(s)
- Yi-Chuan Ma
- Department of Radiology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Ai-Qi Chen
- Department of Radiology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Fei Guo
- Department of Radiology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Juan Yu
- Department of Radiology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Min Xu
- Department of Radiology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Dan-Dan Shan
- Department of Radiology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Shun-Hua Zhang
- School of Medical Imaging, Bengbu Medical College, Bengbu, Anhui, China
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Multi-view iterative random walker for automated salvageable tissue delineation in ischemic stroke from multi-sequence MRI. J Neurosci Methods 2021; 360:109260. [PMID: 34146591 DOI: 10.1016/j.jneumeth.2021.109260] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 05/19/2021] [Accepted: 06/13/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND OBJECTIVE Non-invasive and robust identification of salvageable tissue (penumbra) is crucial for interventional stroke therapy. Besides identifying stroke injury as a whole, the ability to automatically differentiate core and penumbra tissues, using both diffusion and perfusion magnetic resonance imaging (MRI) sequences is essential for ischemic stroke treatment. METHOD A fully automated and novel one-shot multi-view iterative random walker (MIRW) method with an automated injury seed point detection is developed for lesion delineation. MIRW utilizes the heirarchical decomposition of multi-sequence MRI physical properties of the underlying tissue within the lesion to maximize the inter-class variations of the volumetric histogram to estimate the probable seed points. These estimates are further utilized to conglomerate the lesion estimations iteratively from axial, coronal and sagittal MRI volumes for a computationally efficient segmentation and quantification of salvageable and necrotic tissues from multi-sequence MRI. RESULTS Comprehensive experimental analysis of MIRW is performed on three challenging adult(sub-)acute ischemic stroke datasets using performance measures like precision, sensitivity, specificity and Dice similarity score (DSC), which are computed with respect to the manual ground-truth. COMPARISON WITH EXISTING METHODS MIRW method resulted in a high DSC of 83.5% in a very less computational time of 98.23 s/volume, which is a significant improvement on the ISLES benchmark dataset for penumbra detection, compared to the state-of-the-art techniques. CONCLUSION Quantitative measures demonstrate the promising potential of MIRW for computational analysis of adult stroke and quantifying penumbra in stroke patients which is essential for selecting the good candidates for recanalization.
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Wu D, Guo F, Liu D, Hu R, Shen Z, Yang Y, Wang Y, Xu Y, Li L. Characteristics and prognosis of acute basilar artery occlusion in minor to moderate stroke and severe stroke after endovascular treatment: A multicenter retrospective study. Clin Neurol Neurosurg 2021; 202:106504. [PMID: 33535127 DOI: 10.1016/j.clineuro.2021.106504] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 01/14/2021] [Accepted: 01/15/2021] [Indexed: 10/22/2022]
Abstract
OBJECTIVE We aimed to investigate characteristics and outcomes of patients receiving mechanical thrombectomy (MT) between minor to moderate stroke and severe stroke caused by acute basilar artery occlusion (BAO). METHODS We retrospectively reviewed the data of all patients with BAO who underwent MT from three stroke centers between January 2016 and January 2020. The patients were dichotomized as minor to moderate or severe stroke group according to their admission National Institutes of Health Stroke Scale (NIHSS) score <21and ≥21. Patient characteristics, imaging findings, and outcomes were compared between the two groups. RESULTS A total of 72 patients were included in this study. The posterior circulation Alberta Stroke Program Early CT Score (PC-ASPECTS) in the minor to moderate stroke patients were significantly higher than that of patients with severe stroke (P = 0.013). The good posterior circulation collateral scores (PC-CS) (6-10) were more commonly found in patients with minor to moderate stroke than in patients with severe stroke (58.14 % vs 10.34 %,P < 0.001). There were similar rates of successful recanalization between the two groups. Patients with minor to moderate stroke had a higher rate of favorable outcomes (mRS score 0-2, 60.47 % vs 20.69 %, P = 0.002) and a lower rate of periprocedural complications (4.65 % vs 31.03 %, P = 0.005) and mortality (4.65 % vs 24.14 %, P = 0.026) at 3 months after MT compared with the patients with severe stroke. CONCLUSIONS Acute BAO patients with minor to moderate stroke had better posterior circulation collateral and had better outcomes after MT than those patients with severe stroke.
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Affiliation(s)
- Dayu Wu
- Department of Neurology, Gongli Hospital, Shanghai, 200135, PR China
| | - Fei Guo
- Department of Neurology, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, 518052, PR China
| | - Diyan Liu
- Department of Neurology, Wuchang Hospital, Wuhan, 430063, PR China
| | - Rongguo Hu
- Department of Neurology, Gongli Hospital, Shanghai, 200135, PR China
| | - Zhenkun Shen
- Department of Neurology, Gongli Hospital, Shanghai, 200135, PR China
| | - Yuwei Yang
- Department of Intervention, Gongli Hospital, Shanghai, 200135, PR China
| | - Yane Wang
- Department of Intervention, Gongli Hospital, Shanghai, 200135, PR China
| | - Yumei Xu
- Department of Neurology, Gongli Hospital, Shanghai, 200135, PR China
| | - Longxuan Li
- Department of Neurology, Gongli Hospital, Shanghai, 200135, PR China.
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Normalized wall index, intraplaque hemorrhage and ulceration of carotid plaques correlate with the severity of ischemic stroke. Atherosclerosis 2020; 315:138-144. [PMID: 33183741 DOI: 10.1016/j.atherosclerosis.2020.10.896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 09/20/2020] [Accepted: 10/28/2020] [Indexed: 11/23/2022]
Abstract
BACKGROUND AND AIMS Carotid atherosclerosis is considered an important cause of ischemic stroke. Tthis study aimed to explore the relationship between plaque features and the severity of stroke, and to identify plaque risk factors for the assessment of the severity of ischemic stroke. METHODS Symptomatic patients with carotid atherosclerotic plaques were prospectively recruited and underwent high-resolution vessel wall magnetic resonance imaging (VW-MRI). Two trained MRI readers independently identified intraplaque hemorrhage (IPH), calcification (CA), surface CA, deep CA, and ulceration. They measured and calculated the maximum vessel diameter (Max VD), maximum wall thickness (Max WT), total vessel area, lumen area, normalized wall index (NWI), plaque volume, IPH volume, IPH proportion, CA volume, and CA proportion. Patients were divided into two groups according to their National Institutes of Health Stroke Scale (NIHSS) scores (NIHSS ≤1 vs. NIHSS >1). Clinical characteristics and carotid plaque features were compared using the Mann-Whitney U test or Chi-square test as appropriate. Odds ratio (OR) and corresponding 95% confidence interval (CI) of plaque features to distinguish patients with NIHSS >1 were calculated. Spearman's rank correlations or Pearson correlations were determined for plaque features and NIHSS scores. RESULTS Of the 97 included patients, 34 (35.05%) with NIHSS >1 had significantly greater NWI (p < 0.05), larger IPH volume (p < 0.01), and greater IPH proportion (p < 0.01), and higher prevalence of IPH (OR, 5.654; 95%CI, 2.272-14.070; p < 0.01) and ulceration (OR, 2.891; 95%CI, 1.090-7.667; p = 0.033) than patients with NIHSS ≤1. Max WT (r = 0.24, p = 0.018), NWI (r = 0.22, p = 0.032), IPH (r = 0.27, p = 0.007), IPH volume (r = 0.35, p < 0.01), IPH proportion (r = 0.28, p = 0.005), and ulceration (r = 0.35, p < 0.01) had positive correlations with NIHSS scores. CONCLUSIONS NWI, IPH, and ulceration of carotid atherosclerotic plaque based on high-resolution VW-MRI may be useful indicators for assessing the severity of ischemic stroke in patients with atherosclerosis. NIHSS score is related to max WT, NWI, IPH, IPH volume, IPH proportion, and ulceration.
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Qureshi AI, Asif A, Aytac E, Liaqat J, Gurkas E, Lobanova I, Saeed O, Ahsan H, Siddiq F, Gomez CR, French BR. Preprocedure Intravenous Recombinant Tissue Plasminogen Activator and Risk of Distal Embolization with Thrombectomy in Acute Ischemic Stroke. J Stroke Cerebrovasc Dis 2019; 28:104362. [PMID: 31562039 DOI: 10.1016/j.jstrokecerebrovasdis.2019.104362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 07/25/2019] [Accepted: 08/18/2019] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Intravenous recombinant tissue plasminogen activator (IV rt-PA) prior to thrombectomy may reduce the risk of intraprocedural distal embolization in acute ischemic stroke patients. METHODS We analyzed the diffusion-weighted imaging acquired with 1.5- or 3-T magnetic resonance imaging (MRI) scans obtained within 24 hours of thrombectomy in consecutive acute ischemic stroke patients. An independent physician identified distal embolization, defined as discrete foci of restricted diffusion independent of the primary area of infarction on MRI scan. Patients were stratified based on whether they had or did not receive IV rt-PA prior to thrombectomy. RESULTS Distal embolization was seen in 59 (ipsilateral in 56) of 63 patients (mean age ± SD; 64.6 ± 15.3 years) who underwent thrombectomy (mean number 8.6; range 0-32). There was no difference in mean number of ipsilateral hemispheric distal embolization between the 2 groups (7.9 ± 6.1 versus 7.5 ± 7.6, P = .82). After adjusting for age, admission National Institutes of Health Stroke Scale score, the time interval between symptom onset and thrombectomy, there was no association between receiving IV rt-PA prior to thrombectomy and number of ipsilateral distal emboli (P = .90). There was no relationship between the number of ipsilateral emboli and rates of favorable outcome after adjusting for other confounders (adjusted odds ratio 1.0; 95% confidence interval .89 - 1.0; P = .40). CONCLUSIONS Although distal embolization is very common after thrombectomy, IV rt-PA prior to procedure does not reduce the risk of intraprocedural distal embolization.
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Affiliation(s)
- Adnan I Qureshi
- Department of Neurology, University of Missouri, Columbia, Missouri; Zeenat Qureshi Stroke Institute, St. Cloud, Minnesota
| | - Ahmer Asif
- Department of Neurology, University of Missouri, Columbia, Missouri; Zeenat Qureshi Stroke Institute, St. Cloud, Minnesota.
| | - Emrah Aytac
- Department of Neurology, Firat University, Elazig, Turkey; Zeenat Qureshi Stroke Institute, St. Cloud, Minnesota
| | - Jahanzeb Liaqat
- Department of Neurology, University of Missouri, Columbia, Missouri; Zeenat Qureshi Stroke Institute, St. Cloud, Minnesota
| | - Erdem Gurkas
- Department of Neurology, Gulhane Training and Research Hospital, Ankara, Turkey; Zeenat Qureshi Stroke Institute, St. Cloud, Minnesota
| | - Iryna Lobanova
- Department of Neurology, University of Missouri, Columbia, Missouri; Zeenat Qureshi Stroke Institute, St. Cloud, Minnesota
| | - Omar Saeed
- Department of Neurology, University of Tennessee Health Science Center, Memphis, Tennessee; Zeenat Qureshi Stroke Institute, St. Cloud, Minnesota
| | - Humera Ahsan
- Department of Radiology, University of Missouri, Columbia, Missouri
| | - Farhan Siddiq
- Division of Neurological Surgery, Department of Surgery, University of Missouri, Columbia, Missouri
| | - Camilo R Gomez
- Department of Neurology, University of Missouri, Columbia, Missouri
| | - Brandi R French
- Department of Neurology, University of Missouri, Columbia, Missouri
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Aoki J, Suzuki K, Kanamaru T, Kutsuna A, Katano T, Takayama Y, Nishi Y, Takeshi Y, Nakagami T, Numao S, Abe A, Suda S, Nishiyama Y, Kimura K. Association between initial NIHSS score and recanalization rate after endovascular thrombectomy. J Neurol Sci 2019; 403:127-132. [DOI: 10.1016/j.jns.2019.06.033] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 06/12/2019] [Accepted: 06/28/2019] [Indexed: 11/15/2022]
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Santos T, Carvalho A, Cunha AA, Rodrigues M, Gregório T, Paredes L, Costa H, Roriz JM, Pinho J, Veloso M, Castro S, Barros P, Ribeiro M. NCCT and CTA-based imaging protocol for endovascular treatment selection in late presenting or wake-up strokes. J Neurointerv Surg 2018; 11:200-203. [DOI: 10.1136/neurintsurg-2018-014051] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 07/07/2018] [Accepted: 07/10/2018] [Indexed: 11/04/2022]
Abstract
IntroductionRecently, the benefit of selecting patients for endovascular treatment (EVT) beyond the 6-hour time window using a tissue-based approach was demonstrated in two randomized trials. The optimal imaging protocol for selecting patients is under debate, and it is still unknown if a simpler and faster protocol may adequately select patients with wake-up stroke (WUS) and late-presenting stroke (LPS) for EVT.ObjectiveTo compare outcomes of patients submitted to EVT presenting within 6 hours of symptom onset or 6–24 hours after last seen well, selected using non-contrast computed tomography (NCCT) and CT angiography (CTA).MethodsAn observational study was performed, which included consecutive patients with anterior circulation ischemic stroke with large vessel occlusion treated with EVT. Patients presenting within 6 hours were treated if their NIH Stroke Scale (NIHSS) score was ≥6 and Alberta Stroke Program Early CT score (ASPECTS) was ≥6, while patients presenting with WUS or 6–24 hours after last seen well (WUS/LPS) were treated if their NIHSSscore was ≥12 and ASPECTS was ≥7.Results249 patients were included, 63 of whom were in the WUS/LPS group. Baseline characteristics were similar between groups, except for longer symptom-recanalization time, lower admission NIHSS (16 vs 17, P=0.038), more frequent tandem occlusions (25.4% vs 11.8%, P=0.010), and large artery atherosclerosis etiology (22.2% vs 11.8%, P=0.043) in the WUS/LPS group. No differences in symptomatic intracranial hemorrhage, peri-procedural complications or mortality were found between groups. Three-month functional independence was similar in both groups (65.1% in WUS/LPS vs 57.0% in ≤6 hours, P=0.259) and no differences were found after adjustment for confounders.ConclusionsThis real-world observational study suggests that EVT may be safe and effective in patients with WUS and LPS selected using clinical-core mismatch (high NIHSS/high ASPECTS in NCCT).
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Etherton MR, Barreto AD, Schwamm LH, Wu O. Neuroimaging Paradigms to Identify Patients for Reperfusion Therapy in Stroke of Unknown Onset. Front Neurol 2018; 9:327. [PMID: 29867736 PMCID: PMC5962731 DOI: 10.3389/fneur.2018.00327] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 04/25/2018] [Indexed: 12/17/2022] Open
Abstract
Despite the proven efficacy of intravenous alteplase or endovascular thrombectomy for the treatment of patients with acute ischemic stroke, only a minority receive these treatments. This low treatment rate is due in large part to delay in hospital arrival or uncertainty as to the exact time of onset of ischemic stroke, which renders patients outside the current guideline-recommended window of eligibility for receiving these therapeutics. However, recent pivotal clinical trials of late-window thrombectomy now force us to rethink the value of a simplistic chronological formulation that “time is brain.” We must recognize a more nuanced concept that the rate of tissue death as a function of time is not invariant, that still salvageable tissue at risk of infarction may be present up to 24 h after last-known well, and that those patients may strongly benefit from reperfusion. Multiple studies have sought to address this clinical dilemma using neuroimaging methods to identify a radiographic time-stamp of stroke onset or evidence of salvageable ischemic tissue and thereby increase the number of patients eligible for reperfusion therapies. In this review, we provide a critical analysis of the current state of neuroimaging techniques to select patients with unwitnessed stroke for revascularization therapies and speculate on the future direction of this clinically relevant area of stroke research.
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Affiliation(s)
- Mark R Etherton
- Department of Neurology, JPK Stroke Research Center, Massachusetts General Hospital (MGH), Harvard Medical School, Boston, MA, United States
| | - Andrew D Barreto
- Stroke Division, Department of Neurology, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Lee H Schwamm
- Department of Neurology, JPK Stroke Research Center, Massachusetts General Hospital (MGH), Harvard Medical School, Boston, MA, United States
| | - Ona Wu
- Department of Neurology, JPK Stroke Research Center, Massachusetts General Hospital (MGH), Harvard Medical School, Boston, MA, United States.,Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital (MGH), Charlestown, MA, United States
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Abstract
Acute ischemic stroke is a leading cause of death and the leading cause of disability in the United States. Cerebral neuronal death begins within minutes after threshold values of blood oxygen saturation are crossed. Prompt restoration of oxygenated blood flow into ischemic tissue remains the common goal of reperfusion strategies. This article provides a brief overview of acute ischemic stroke, a summary of the major intra-arterial stroke therapy trials, and comments on current training requirements for the performance of intra-arterial therapies.
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Affiliation(s)
- Ethan A Prince
- Division of Interventional Radiology, Department of Diagnostic Imaging, Warren Alpert Medical School of Brown University, Providence, Rhode Island
| | - Sun Ho Ahn
- Division of Interventional Radiology, Department of Diagnostic Imaging, Warren Alpert Medical School of Brown University, Providence, Rhode Island
| | - Gregory M Soares
- Division of Interventional Radiology, Department of Diagnostic Imaging, Warren Alpert Medical School of Brown University, Providence, Rhode Island
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13
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Interventional Management of Acute Ischemic Stroke: A Systematic Review. CURRENT TREATMENT OPTIONS IN CARDIOVASCULAR MEDICINE 2014; 16:318. [DOI: 10.1007/s11936-014-0318-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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14
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Jayaraman MV, McTaggart RA. Future acute ischemic stroke trials should randomize on the angio table. J Neurointerv Surg 2014; 8:e1. [PMID: 24850155 DOI: 10.1136/neurintsurg-2014-011263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/23/2014] [Indexed: 11/04/2022]
Affiliation(s)
- Mahesh V Jayaraman
- Departments of Diagnostic Imaging and Neurosurgery, Warren Alpert School of Medicine at Brown University, Rhode Island Hospital, Providence, Rhode Island, USA
| | - Ryan A McTaggart
- Departments of Radiology and Neurosurgery, Cleveland Clinic Florida, Weston, Florida, USA Cerebrovascular Center, Cleveland Clinic, Cleveland, OH, USA
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