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Pushie MJ, Sylvain NJ, Hou H, George D, Kelly ME. Ion Dyshomeostasis in the Early Hyperacute Phase after a Temporary Large-Vessel Occlusion Stroke. ACS Chem Neurosci 2024; 15:2132-2143. [PMID: 38743904 DOI: 10.1021/acschemneuro.3c00685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024] Open
Abstract
Element dysregulation is a pathophysiologic hallmark of ischemic stroke. Prior characterization of post-stroke element dysregulation in the photothrombotic model demonstrated significant element changes for ions that are essential for the function of the neurovascular unit. To characterize the dynamic changes during the early hyperacute phase (<6 h), we employed a temporary large-vessel occlusion stroke model. The middle cerebral artery was temporarily occluded for 30 min in male C57BL/6 mice, and coronal brain sections were prepared for histology and X-ray fluorescence microscopy from 5 to 120 min post-reperfusion. Ion dysregulation was already apparent by 5 min post-reperfusion, evidenced by reduced total potassium in the lesion. Later time points showed further dysregulation of phosphorus, calcium, copper, and zinc. By 60 min post-reperfusion, the central portion of the lesion showed pronounced element dysregulation and could be differentiated from a surrounding region of moderate dysregulation. Despite reperfusion, the lesion continued to expand dynamically with increasing severity of element dysregulation throughout the time course. Given that the earliest time point investigated already demonstrated signs of ion disruption, we anticipate such changes may be detectable even earlier. The profound ion dysregulation at the tissue level after reperfusion may contribute to hindering treatments aimed at functional recovery of the neurovascular unit.
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Affiliation(s)
- M Jake Pushie
- Department of Surgery, Division of Neurosurgery, College of Medicine, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada
| | - Nicole J Sylvain
- Department of Surgery, Division of Neurosurgery, College of Medicine, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada
| | - Huishu Hou
- Department of Surgery, Division of Neurosurgery, College of Medicine, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada
| | - Dominic George
- Department of Physics, College of Arts and Science, University of Saskatchewan, Saskatoon, SK S7N 5E2, Canada
| | - Michael E Kelly
- Department of Surgery, Division of Neurosurgery, College of Medicine, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada
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Gyawali P, Lillicrap TP, Esperon CG, Bhattarai A, Bivard A, Spratt N. Whole Blood Viscosity and Cerebral Blood Flow in Acute Ischemic Stroke. Semin Thromb Hemost 2024; 50:580-591. [PMID: 37813371 DOI: 10.1055/s-0043-1775858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
Existing effective treatments for ischemic stroke restore blood supply to the ischemic region using thrombolysis or mechanical removal of clot. However, it is increasingly recognized that successful removal of occlusive thrombus from the large artery-recanalization, may not always be accompanied by successful restoration of blood flow to the downstream tissues-reperfusion. Ultimately, brain tissue survival depends on cerebral perfusion, and a functioning microcirculation. Because capillary diameter is often equal to or smaller than an erythrocyte, microcirculation is largely dependent on erythrocyte rheological (hemorheological) factors such as whole blood viscosity (WBV). Several studies in the past have demonstrated elevated WBV in stroke compared with healthy controls. Also, elevated WBV has shown to be an independent risk factor for stroke. Elevated WBV leads to endothelial dysfunction, decreases nitric oxide-dependent flow-mediated vasodilation, and promotes hemostatic alterations/thrombosis, all leading to microcirculation sludging. Compromised microcirculation further leads to decreased cerebral perfusion. Hence, modulating WBV through pharmacological agents might be beneficial to improve cerebral perfusion in stroke. This review discusses the effect of elevated WBV on endothelial function, hemostatic alterations, and thrombosis leading to reduced cerebral perfusion in stroke.
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Affiliation(s)
- Prajwal Gyawali
- Heart and Stroke Program, Hunter Medical Research Institute and School of Health and Medical Sciences, University of Southern Queensland, Toowoomba, Queensland, Australia
| | - Thomas P Lillicrap
- Heart and Stroke Program, Department of Neurology, Hunter Medical Research Institute, John Hunter Hospital, New Lambton Heights, New South Wales, Australia
| | - Carlos G Esperon
- Heart and Stroke Program, Department of Neurology, Hunter Medical Research Institute, John Hunter Hospital, New Lambton Heights, New South Wales, Australia
| | - Aseem Bhattarai
- Department of Biochemistry, Institute of Medicine, Kathmandu, Nepal
| | - Andrew Bivard
- Department of Neurology, Royal Melbourne Hospital, Parkville, Victoria, Australia
| | - Neil Spratt
- Heart and Stroke Program, Department of Neurology, Hunter Medical Research Institute, School of Biomedical Sciences and Pharmacy, University of Newcastle, John Hunter Hospital, New Lambton Heights, New South Wales, Australia
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Takeshita S, Nii K, Tsugawa J, Ishii A, Fukumoto H, Hanada H, Inoue R, Sakamoto K, Higashi T. Efficacy and Safety of a New Delivery Assist Catheter with a Flexible, Spindle-Shaped Shaft in Mechanical Thrombectomy. World Neurosurg 2024:S1878-8750(24)00779-4. [PMID: 38735560 DOI: 10.1016/j.wneu.2024.05.025] [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: 04/23/2024] [Accepted: 05/06/2024] [Indexed: 05/14/2024]
Abstract
OBJECTIVE Large-bore aspiration catheters (ACs) are used successfully in mechanical thrombectomy (MT). However, tortuous access routes prevent device navigation because of the ledge effect. The AXS Offset Delivery Assist Catheter is designed to reduce the ledge effect. The purpose of this study was to evaluate whether the Offset affects AC navigation compared with standard inner microcatheters in MT. METHODS We retrospectively investigated 75 MTs for anterior circulation occlusion between January 2018 and May 2022 at our hospital. All MTs were performed using an AC, and 2 types of inner microcatheter (Offset or 0.021-0.027-inch standard microcatheter) were chosen randomly during AC navigation. The patients' characteristics, MT techniques, angiographic findings, and clinical outcomes were compared between the Offset and standard group (Non-Offset). The puncture to first pass of the lesion time was investigated to compare the characteristics of the inner catheters. RESULTS The Offset group comprised 12 patients versus 63 in the Non-Offset group. Although most baseline clinical characteristics and outcomes were similar between the groups, the puncture to first pass of the lesion time was significantly shorter in the Offset versus Non-Offset group (31 ± 10 vs. 46 ± 24 minutes, respectively; P = 0.032). In the Offset group, all stent retrievers were deployed via the Offset. One artery dissection and 8 symptomatic intracranial hemorrhages occurred in the Non-Offset group; no complications occurred in the Offset group. CONCLUSIONS The AXS Offset delivery assist catheter permitted faster and safer navigation of various ACs to the occlusions compared with standard delivery microcatheters in MT.
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Affiliation(s)
- Sho Takeshita
- Department of Neurology, Fukuoka University Chikushi Hospital, Fukuoka, Japan
| | - Kouhei Nii
- Stroke Center, Fukuoka University Chikushi Hospital, Fukuoka, Japan; Stroke Prevention and Community Healthcare, Fukuoka University Graduate School, Fukuoka, Japan.
| | - Jun Tsugawa
- Department of Neurology, Fukuoka University Chikushi Hospital, Fukuoka, Japan; Stroke Prevention and Community Healthcare, Fukuoka University Graduate School, Fukuoka, Japan
| | - Ayako Ishii
- Department of Neurology, Fukuoka University Chikushi Hospital, Fukuoka, Japan
| | | | - Hayatsura Hanada
- Stroke Center, Fukuoka University Chikushi Hospital, Fukuoka, Japan; Stroke Prevention and Community Healthcare, Fukuoka University Graduate School, Fukuoka, Japan
| | - Ritsurou Inoue
- Department of Neurosurgery, Fukuoka University Chikushi Hospital, Fukuoka, Japan
| | - Kimiya Sakamoto
- Department of Neurosurgery, Fukuoka University Chikushi Hospital, Fukuoka, Japan
| | - Toshio Higashi
- Stroke Prevention and Community Healthcare, Fukuoka University Graduate School, Fukuoka, Japan; Department of Neurosurgery, Fukuoka University Chikushi Hospital, Fukuoka, Japan
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Chang JY, Lee JS, Kim WJ, Kwon JH, Kim BJ, Kim JT, Lee J, Cha JK, Kim DH, Cho YJ, Hong KS, Lee SJ, Park JM, Kang K, Lee BC, Yu KH, Lee SH, Kim C, Park KY, Kim DE, Lee K, Park TH, Choi JC, Shin DI, Sohn SI, Bae HJ, Han MK. Efficacy of Endovascular Thrombectomy in Acute Basilar Artery Occlusion with Low PC-ASPECTS: A Nationwide Prospective Registry-Based Study. Ann Neurol 2024; 95:788-799. [PMID: 38381765 DOI: 10.1002/ana.26879] [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: 07/07/2023] [Revised: 12/20/2023] [Accepted: 12/26/2023] [Indexed: 02/23/2024]
Abstract
OBJECTIVE We evaluated the efficacy of endovascular thrombectomy (EVT) on the functional outcome of patients with acute basilar artery occlusion and low posterior circulation acute stroke prognosis early computed tomography score (PC-ASPECTS). METHODS We identified patients with acute ischemic stroke due to basilar artery occlusion and PC-ASPECTS of 6 or less, presenting within 24 h between August 2008 and April 2022. The primary outcome was a favorable functional outcome, defined as a modified Rankin Scale (mRS) score of 0-3 at 90 days. The secondary outcomes included an mRS score of 0-2, a favorable shift in the ordinal mRS scale, the occurrence of symptomatic intracranial hemorrhage (sICH), and mortality at 90 days. We compared the outcome of patients treated with EVT and those without EVT, using the inverse probability of treatment weighting methods. RESULTS Out of 566 patients, 55.5% received EVT. In the EVT group, 106 (33.8%) achieved favorable outcomes, compared to 56 patients (22.2%) in the conservative group. EVT significantly increased the likelihood of achieving a favorable outcome compared to conservative treatment (relative risk [RR] 1.39, 95% confidence interval [CI], 1.11-1.74, p = 0.004). EVT was associated with a favorable shift in the mRS (RR 1.85, 95% CI, 1.49-2.29, p < 0.001) and reduced mortality without an increase in the risk of sICH. It did not have an impact on achieving an mRS score of 0-2. INTERPRETATION Patients with acute basilar artery occlusion and a PC-ASPECTS of 6 or less might benefit from EVT without an increasing sICH. ANN NEUROL 2024;95:788-799.
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Affiliation(s)
- Jun Young Chang
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Ji Sung Lee
- Clinical Research Center, Asan Medical Center, Seoul, Korea
| | - Wook-Joo Kim
- Department of Neurology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
| | - Jee Hyun Kwon
- Department of Neurology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
| | - Beom Joon Kim
- Department of Neurology and Cerebrovascular Center, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam-si, Republic of Korea
| | - Joon-Tae Kim
- Department of Neurology, Chonnam National University Hospital, Gwangju, Korea
| | - Jun Lee
- Department of Neurology, Yeungnam University Medical Center, Daegu, Korea
| | - Jae Kwan Cha
- Department of Neurology, Dong-A University Hospital, Busan, Korea
| | - Dae-Hyun Kim
- Department of Neurology, Dong-A University Hospital, Busan, Korea
| | - Yong-Jin Cho
- Department of Neurology, Inje University Ilsan Paik Hospital, Goyang, Korea
| | - Keun-Sik Hong
- Department of Neurology, Inje University Ilsan Paik Hospital, Goyang, Korea
| | - Soo Joo Lee
- Department of Neurology, Eulji University Hospital, Daejeon, Korea
| | - Jong-Moo Park
- Department of Neurology, Uijeongbu Eulji Medical Center, Eulji University, Uijeongbu, Korea
| | - Kyusik Kang
- Department of Neurology, Nowon Eulji Medical Center, Eulji University School of Medicine, Seoul, Korea
| | - Byung-Chul Lee
- Department of Neurology, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Kyung-Ho Yu
- Department of Neurology, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Sang-Hwa Lee
- Department of Neurology, Hallym University Chuncheon Sacred Heart Hospital, Chuncheon, Korea
| | - Chulho Kim
- Department of Neurology, Hallym University Chuncheon Sacred Heart Hospital, Chuncheon, Korea
| | - Kwang-Yeol Park
- Department of Neurology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Dong-Eog Kim
- Department of Neurology, Dongguk University Ilsan Hospital, Goyang, Korea
| | - Kyungbok Lee
- Department of Neurology, Soonchunhyang University Hospital, Seoul, Korea
| | - Tai Hwan Park
- Department of Neurology, Seoul Medical Center, Seoul, Korea
| | - Jay Chol Choi
- Department of Neurology, Jeju National University Hospital, Jeju, Korea
| | - Dong-Ick Shin
- Department of Neurology, Chungbuk National University Hospital, Cheongju, Korea
| | - Sung-Il Sohn
- Department of Neurology, Keimyung University Dongsan Hospital, Daegu, Korea
| | - Hee-Joon Bae
- Department of Neurology and Cerebrovascular Center, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam-si, Republic of Korea
| | - Moon-Ku Han
- Department of Neurology and Cerebrovascular Center, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam-si, Republic of Korea
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Biederko R, Honig A, Shabad K, Zlotnik Y, Ben-Arie G, Alguayn F, Shelef I, Horev A. Improved first-pass effect in acute stroke thrombectomy using Solitaire-X compared to Solitaire-FR. Front Neurol 2023; 14:1215349. [PMID: 37928145 PMCID: PMC10621039 DOI: 10.3389/fneur.2023.1215349] [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: 05/01/2023] [Accepted: 09/29/2023] [Indexed: 11/07/2023] Open
Abstract
Background In acute ischemic stroke (AIS), successful endovascular thrombectomy (EVT) of large vessel occlusion (LVO) necessitates the most suited device. Solitaire-X has longer and larger diameter pusher wires than Solitaire-FR.As the role of a larger pusher-wire diameter is uncertain, we aim to compare procedural, clinical, and radiological outcomes for AIS patients undergoing EVT using either type of Solitaire device. Procedures were performed using the Solumbra technique, which combines a large-bore aspiration catheter with a stentriever. The primary outcome was to compare rates of successful first-pass recanalization (defined as TICI 2b/3 score). The secondary objectives were procedural (rates of successful recanalization), clinical (post-procedural NIHSS and days of hospitalization), and radiological (post-procedural ASPECT score and hemorrhagic transformation) outcome measures. Design Consecutive AIS patients undergoing EVT for LVO were recruited into a prospective multicenter database at our academic center. We have used Solitaire-FR until October 2020 and Solitaire-X ever since. We retrospectively analyzed our prospective consecutive registry. Included in our analysis are patients undergoing EVT using Solitaire only; patients with tandem lesions or underlying stenosis requiring emergent stenting during the procedure were excluded. The cohort of patients treated with Solitaire-X was compared with a cohort consisting of the most recent consecutive cases undergoing EVT with the Solitaire-FR. Results A total of 182 (71.9 ± 14, 61% male patients) AIS patients were included in the analysis with both groups (n = 91 each) sharing similar demographic characteristics, premorbid conditions, and stroke characteristics (time from symptom-onset, NIHSS, ASPECTS, occlusion site, and rates of intravenous-tPA treatment). The Solitaire-X group had a higher rate of first-pass recanalization (65.9% vs. 50.5%, p = 0.049). On 24-h post-procedural head-CT, the Solitaire-X group had higher ASPECT scores (6.51 ± 2.9 vs. 5.49 ± 3.4, p = 0.042) and lower post-procedural average bleeding volumes (0.67 ± 2.1 vs. 1.20 ± 3.4 mL, p = 0.041). The Solitaire-X group had shorter duration of hospitalization (16.6 ± 13.1 days vs. 25.1 ± 23.2, p = 0.033). On multivariate analysis, using Solitaire-X was the sole independent predictor of first-pass recanalization (OR 2.17, 95% CI 1.12-4.26, p = 0.023). Conclusion In our study, the use of the Stentriever-X with a larger pusher-wire diameter was associated with a higher likelihood of first-pass effect and improved procedural, clinical, and radiological outcomes in AIS patients.
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Affiliation(s)
- Ron Biederko
- Clinical Research Center, Soroka University Medical Center, Beer Sheva, Israel
| | - Asaf Honig
- Neurology Department, Soroka University Medical Center, Beer Sheva, Israel
- Faculty of Health Sciences, Ben Gurion University of the Negev, Beer Sheva, Israel
| | - Ksenia Shabad
- Neurology Department, Soroka University Medical Center, Beer Sheva, Israel
| | - Yair Zlotnik
- Neurology Department, Soroka University Medical Center, Beer Sheva, Israel
- Faculty of Health Sciences, Ben Gurion University of the Negev, Beer Sheva, Israel
| | - Gal Ben-Arie
- Faculty of Health Sciences, Ben Gurion University of the Negev, Beer Sheva, Israel
- Radiology Institute, Soroka University Medical Center, Beer Sheva, Israel
| | - Farouq Alguayn
- Department of Neurosurgery, Soroka University Medical Center, Beer Sheva, Israel
| | - Ilan Shelef
- Faculty of Health Sciences, Ben Gurion University of the Negev, Beer Sheva, Israel
- Radiology Institute, Soroka University Medical Center, Beer Sheva, Israel
| | - Anat Horev
- Neurology Department, Soroka University Medical Center, Beer Sheva, Israel
- Faculty of Health Sciences, Ben Gurion University of the Negev, Beer Sheva, Israel
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Kawano D, Fukuda K, Takeshita S, Fukumoto H, Horio Y, Ogata T, Higashi T, Inoue T, Abe H. Pooled blood volume measured by final flat-panel detector computed tomography predicts outcome after endovascular thrombectomy for acute ischemic stroke. World Neurosurg X 2023; 19:100178. [PMID: 37021291 PMCID: PMC10068609 DOI: 10.1016/j.wnsx.2023.100178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 02/27/2023] [Accepted: 03/16/2023] [Indexed: 03/30/2023] Open
Abstract
Background Pooled blood volume (PBV), measured in real-time in the angiography room using an angiography system, correlates with cerebral blood volume (CBV). We examined the usefulness of PBV in endovascular thrombectomy (EVT) for acute ischemic stroke (AIS). Methods EVT for AIS in the anterior circulation (internal carotid artery (ICA) and middle cerebral artery (MCA)) was performed in 31 cases (13 males, 18 females, average age 75.7 years). PBV was acquired using a biplane flat-panel detector (FD) angiographic system. Then, we measured the average PBV value in the M1-6 regions similar to the Alberta Stroke Program Early CT score (ASPECTS) before and after EVT. We investigated factors associated with favorable outcome at 90 days after EVT. Results There were 13 patients (41.9%) in the good outcome group (mRS (modified Rankin Scale) ≦2) and 18 patients (58.1%) in the poor outcome group (mRS>2). In univariate analysis, NIHSS (National Institutes of Health Stroke Scale) (odds ratio [OR] 0.74, 95% CI 0.57-0.87, p < 0.0001) and post PBV value (odds ratio [OR] 1.13, 95% CI 1.03-1.29, p = 0.0086) were significantly associated with good outcome. The good outcome group had significantly higher post-thrombectomy PBV value (3.69 ± 0.32 ml/100 g versus 2.78 ± 0.93 ml/100 g, P = 0.002) compared to that of the poor outcome group. The relationship between pre-thrombectomy PBV value and outcome at 90 days was not significant. Conclusions Post-operative PBV value measured by FD-CT (computed tomography) correlated with 90-day outcome after EVT for AIS. FD-CT-PBV would be one of the good predictors of clinical outcome.
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Pawłowski K, Dziadkiewicz A, Podlasek A, Klaudel J, Mączkowiak A, Szołkiewicz M. Thrombectomy-Capable Stroke Centre-A Key to Acute Stroke Care System Improvement? Retrospective Analysis of Safety and Efficacy of Endovascular Treatment in Cardiac Cathlab. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:2232. [PMID: 36767599 PMCID: PMC9915992 DOI: 10.3390/ijerph20032232] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/16/2023] [Accepted: 01/24/2023] [Indexed: 06/18/2023]
Abstract
The optimal structure of the acute ischaemic stroke treatment network is unknown and eagerly sought. To make it most effective, different treatment and transportation strategies have been developed and investigated worldwide. Since only a fraction of acute stroke patients with large vessel occlusion are treated, a new entity-thrombectomy-capable stroke centre (TCSC)-was introduced to respond to the growing demand for timely endovascular treatment. The purpose of this study was to present the early experience of the first 70 patients treated by mechanical means in a newly developed cardiac Cathlab-based TCSC. The essential safety and efficacy measures were recorded and compared with those reported in the invasive arm of the HERMES meta-analysis-the largest published dataset on the subject. We found no significant differences in terms of clinical and safety outcomes, such as early neurological recovery, level of functional independence at 90 days, symptomatic intracranial haemorrhage, parenchymal haematoma type 2, and mortality. These encouraging results obtained in the small endovascular centre may be an argument for the introduction of the TCSC into operating stroke networks to increase patient access to timely treatment and to improve clinical outcomes.
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Affiliation(s)
- Krzysztof Pawłowski
- Department of Cardiology and Interventional Angiology, Kashubian Center for Heart and Vascular Diseases, Pomeranian Hospitals, 84-200 Wejherowo, Poland
| | - Artur Dziadkiewicz
- Department of Neurology and Stroke, Pomeranian Hospitals, 84-200 Wejherowo, Poland
| | - Anna Podlasek
- Tayside Innovation Medtech Ecosystem (TIME), University of Dundee, Dundee DD1 4HN, UK
- Precision Imaging Beacon, Radiological Sciences, University of Nottingham, Nottingham NG7 2RD, UK
| | - Jacek Klaudel
- Department of Invasive Cardiology, St. Adalbert’s Hospital, Copernicus PL, 80-070 Gdansk, Poland
| | - Alicja Mączkowiak
- Department of Neurology and Stroke, Pomeranian Hospitals, 84-200 Wejherowo, Poland
| | - Marek Szołkiewicz
- Department of Cardiology and Interventional Angiology, Kashubian Center for Heart and Vascular Diseases, Pomeranian Hospitals, 84-200 Wejherowo, Poland
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Ouyang M, Shajahan S, Liu X, Sun L, Carcel C, Harris K, Anderson CS, Woodward M, Wang X. Sex differences in the utilization and outcomes of endovascular treatment after acute ischemic stroke: A systematic review and meta-analysis. Front Glob Womens Health 2023; 3:1032592. [PMID: 36741299 PMCID: PMC9889638 DOI: 10.3389/fgwh.2022.1032592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 12/22/2022] [Indexed: 01/20/2023] Open
Abstract
Background Studies of sex differences in the use and outcomes of endovascular treatment (EVT) for acute ischemic stroke report inconsistent results. Methods We systematically searched PubMed and Embase databases for studies examining sex-specific utilization of EVT for acute ischemic stroke published before 31 December 2021. Estimates were compared by study type: randomized clinical trials (RCTs) and non-RCTs (hospital-based, registry-based or administrative data). Random effects odds ratios (ORs) were generated to quantify sex differences in EVT use. To estimate sex differences in functional outcome on the modified Rankin scale after EVT, the female:male ratio of ORs and 95% confidence intervals (CIs) were obtained from ordinal or binary analysis. Results 6,396 studies were identified through database searching, of which 594 qualified for a full review. A total of 51 studies (36 non-RCT and 15 RCTs) reporting on sex-specific utilization of EVT were included, and of those 10 estimated the sex differences of EVT on functional outcomes. EVT use was similar in women and men both in non-RCTs (OR: 1.03, 95% CI: 0.96-1.11) and RCTs (1.02, 95% CI: 0.89-1.16), with consistent results across years of publication and regions of study, except that in Europe EVT treatment was higher in women than men (1.15, 95% CI: 1.13-1.16). No sex differences were found in the functional outcome by either ordinal and binary analyses (ORs 0.95, 95% CI: 0.68-1.32] and 0.90, 95% CI: 0.65-1.25, respectively). Conclusions No sex differences in EVT utilization or on functional outcomes were evident after acute ischemic stroke from large-vessel occlusion. Further research may be required to examine sex differences in long-term outcomes, social domains, and quality of life. Systematic Review Registration https://www.crd.york.ac.uk/PROSPERO/display_record.php?RecordID=226100, identifier: CRD42021226100.
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Affiliation(s)
- Menglu Ouyang
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia,Stroke Division, TheGeorge Institute for Global Health, Beijing, China
| | - Sultana Shajahan
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Xiaoying Liu
- Sydney School of Public Health, Sydney Medical School, The University of Sydney, Sydney, NSW, Australia
| | - Lingli Sun
- Stroke Division, TheGeorge Institute for Global Health, Beijing, China
| | - Cheryl Carcel
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia,Neurology Department, Royal Prince Alfred Hospital, Sydney Health Partners, Sydney, NSW, Australia
| | - Katie Harris
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Craig S. Anderson
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia,Neurology Department, Royal Prince Alfred Hospital, Sydney Health Partners, Sydney, NSW, Australia
| | - Mark Woodward
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia,The George Institute for Global Health, School of Public Health, Imperial College London, London, United Kingdom
| | - Xia Wang
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia,Correspondence: Xia Wang
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Saver JL, Duncan PW, Stein J, Cramer SC, Eng JJ, Lifshitz A, Hochberg A, Bornstein NM. EMAGINE-Study protocol of a randomized controlled trial for determining the efficacy of a frequency tuned electromagnetic field treatment in facilitating recovery within the subacute phase following ischemic stroke. Front Neurol 2023; 14:1148074. [PMID: 37213907 PMCID: PMC10196621 DOI: 10.3389/fneur.2023.1148074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 04/03/2023] [Indexed: 05/23/2023] Open
Abstract
Stroke is a leading cause of disability with limited effective interventions that improve recovery in the subacute phase. This protocol aims to evaluate the safety and efficacy of a non-invasive, extremely low-frequency, low-intensity, frequency-tuned electromagnetic field treatment [Electromagnetic Network Targeting Field (ENTF) therapy] in reducing disability and promoting recovery in people with subacute ischemic stroke (IS) with moderate-severe disability and upper extremity (UE) motor impairment. Following a sample-size adaptive design with a single interim analysis, at least 150 and up to 344 participants will be recruited to detect a 0.5-point (with a minimum of 0.33 points) difference on the modified Rankin Scale (mRS) between groups with 80% power at a 5% significance level. This ElectroMAGnetic field Ischemic stroke-Novel subacutE treatment (EMAGINE) trial is a multicenter, double-blind, randomized, sham-controlled, parallel two-arm study to be conducted at approximately 20 United States sites, and enroll participants with subacute IS and moderate-severe disability with UE motor impairment. Participants will be assigned to active (ENTF) or sham treatment, initiated 4-21 days after stroke onset. The intervention, applied to the central nervous system, is designed for suitability in multiple clinical settings and at home. Primary endpoint is change in mRS score from baseline to 90 days post-stroke. Secondary endpoints: change from baseline to 90 days post-stroke on the Fugl-Meyer Assessment - UE (lead secondary endpoint), Box and Block Test, 10-Meter Walk, and others, to be analyzed in a hierarchical manner. EMAGINE will evaluate whether ENTF therapy is safe and effective at reducing disability following subacute IS. Trial registration www.ClinicalTrials.gov, NCT05044507 (14 September 2021).
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Affiliation(s)
- Jeffrey L. Saver
- Department of Neurology, University of California, Los Angeles, Los Angeles, CA, United States
- *Correspondence: Jeffrey L. Saver
| | - Pamela W. Duncan
- School of Medicine, Wake Forest University, Winston-Salem, NC, United States
| | - Joel Stein
- Weill Cornell Medicine, Cornell University, White Plains, NY, United States
| | - Steven C. Cramer
- Department of Neurology, University of California, Los Angeles, Los Angeles, CA, United States
- California Rehabilitation Institute, Los Angeles, CA, United States
| | - Janice J. Eng
- Department of Physical Therapy, University of British Columbia, Vancouver, BC, Canada
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Allard J, Delvoye F, Pop R, Labreuche J, Maier B, Marnat G, Sibon I, Zhu F, Lapergue B, Consoli A, Spelle L, Denier C, Richard S, Piotin M, Gory B, Mazighi M, Redjem H, Escalard S, Dessilles JP, Delvoye F, Smajda S, Maier B, Solène H, Mazighi M, Obadia M, Sabben C, Pierre S, Igor R, Corabianu O, de Broucker T, Manchon E, Taylor G, Maacha MB, Thion LA, Augustin L, Julien S, Wang A, Evrard S, Tchikviladze M, Ajili N, WeisenburgerLile D, Gorza L, Buard G, Coskun O, Di Maria F, Rodesh G, Zimatore S, Leguen M, Gratieux J, Pico F, Rakotoharinandrasana H, Tassan P, Poll R, Marinier S, Barreau X, Berge J, Menegon P, Lucas L, Olindo S, Renou P, Sagnier S, Poli M, Debruxelles S, Rouanet F, Tourdias T, Liegey JS, Briau P, Pangon N, Coussy A, Papillon L, Papaxanthos J, Detraz L, Daumas-Duport B, Alexandre PL, Roy M, Lenoble C, Desal H, Guillon B, de Gaalon S, Preterre C, Bracard S, Anxionnat R, Braun M, Derelle AL, Tonnelet R, Liao L, Zhu F, Schmitt E, Planel S, Humbertjean L, Lacour JC, Riou-Comte N, Voicu M, Alb L, Reitter M, Brezeanu M, Masson A, Tabarna A, Podar I, Macian-Montoro F, Saleme S, Mounayer C, Rouchaud A, Costalat V, Arquizan C, Dargazanli C, Gascou G, Lefèvre PH, Derraz I, Riquelme C, Gaillard N, Mourand I, Corti L, Cagnazzo F, Ter Schiphorst A, Ferre JC, Raoult H, Ronziere T, Lassale M, Paya C, Gauvrit JY, Tracol C, Langnier-Lemercier S. 24-Hour Carotid Stent Patency and Outcomes After Endovascular Therapy: A Multicenter Study. Stroke 2023; 54:124-131. [PMID: 36542074 DOI: 10.1161/strokeaha.122.039797] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Management of extracranial internal carotid artery steno-occlusive lesion during endovascular therapy remains debated. Stent occlusion within 24 hours of endovascular therapy is a frequent event after acute carotid artery stenting, and we currently lack large population results. We investigated the incidence, predictors, and clinical impact of stent occlusion after acute carotid artery stenting in current clinical practice. METHODS Patients treated by endovascular therapy with acute carotid artery stenting between 2015 and 2019 in 5 large-volume endovascular-capable centers were retrospectively analyzed. Patients were separated in 2 groups according to the stent patency at 24 hours after carotid artery stenting. We compared baseline characteristics, treatment modalities, and clinical outcome depending on 24-hour stent patency. Primary end point was favorable outcome, defined as a modified Rankin Scale score 0-2 at 3 months. RESULTS A stent occlusion was observed in 47/225 patients (20.9%). Patients with stent patency had a lower baseline National Institutes of Health Stroke Scale (median [interquartile range]: 13 [7-17] versus 18 [12-21]) and had more often stroke of atherothrombotic origin (77.0% versus 53.2%). A higher stent patency rate was found for patients treated with P2Y12 antagonists at the acute phase (odds ratio [OR]' 2.95 [95% CI' 1.10-7.91]; P=0.026) and treated with angioplasty (OR' 2.42 [95% CI' 1.24-4.67]; P=0.008). A better intracranial angiographic reperfusion was observed in patients with 24-hour stent patency compared with patients without stent patency (OR' 8.38 [95% CI' 3.07-22.78]; P<0.001). Patients with a stent patency at 24 hours had a higher chance of favorable outcome (OR' 3.29 [95% CI, 1.66-6.52]; P<0.001) and a lower risk of death (OR' 0.32 [95% CI, 0.13-0.76]; P=0.009). CONCLUSIONS One out of 5 patients treated with carotid artery stenting during endovascular therapy presented a stent occlusion within 24 hours. This event was associated with worse functional outcome. Stroke etiology, P2Y12 antagonist administration, quality of intracranial reperfusion, and angioplasty were associated with 24-hour stent patency.
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Affiliation(s)
- Julien Allard
- Department of Interventional Neuroradiology, Rothschild Foundation, Paris, France (J.A., F.D., B.M., MP, M.M.).,University of Paris' France (J.A., M.M.)
| | - François Delvoye
- Department of Interventional Neuroradiology, Rothschild Foundation, Paris, France (J.A., F.D., B.M., MP, M.M.)
| | - Raoul Pop
- Department of Neuroradiolology, CHU Strasbourg, France (R.P.).,Institut de Chirurgie Minime Invasive Guidée par l'Image, Strasbourg, France (R.P.).,University of Strasbourg, INSERM UMR-S1255, France (R.P.)
| | - Julien Labreuche
- Department of Biostatistics, CHU Lille, University of Lille, France (J.L.)
| | - Benjamin Maier
- Department of Interventional Neuroradiology, Rothschild Foundation, Paris, France (J.A., F.D., B.M., MP, M.M.).,LVTS, INSERM U1148, University of Paris, France (BM., M.M.)
| | - Gaultier Marnat
- Department of Diagnostic and Interventional Neuroradiology, University Hospital of Bordeaux, France (G.M.)
| | - Igor Sibon
- Department of Neurology, Stroke Center, University Hospital of Bordeaux, France (I.S.)
| | - François Zhu
- Department of Diagnostic and Therapeutic Neuroradiology, CHRU-Nancy, Université de Lorraine, France (B.G., F.Z.)
| | - Bertrand Lapergue
- Department of Neurology, Foch Hospital, Versailles Saint-Quentin en Yvelines University, Suresnes, France (B.L.)
| | - Arturo Consoli
- Diagnostic and Interventional Neuroradiology, Foch Hospital, Versailles Saint-Quentin en Yvelines University, Suresnes, France (A.C.)
| | - Laurent Spelle
- Department of Neuroradiolology, CHU Kremlin-Bicêtre, Le Kremlin Bicêtre, France (L.S.)
| | - Christian Denier
- Department of Neurology, CHU Kremlin-Bicêtre, Le Kremlin Bicêtre, France (C.D.)
| | - Sébastien Richard
- Department of Neurology, Stroke Unit, Université de Lorraine, CHRU-Nancy, France (S.R.).,CIC-P 1433, INSERM U1116, CHRU-Nancy, France (S.R.)
| | - Michel Piotin
- Department of Interventional Neuroradiology, Rothschild Foundation, Paris, France (J.A., F.D., B.M., MP, M.M.)
| | - Benjamin Gory
- Department of Diagnostic and Therapeutic Neuroradiology, CHRU-Nancy, Université de Lorraine, France (B.G., F.Z.).,IADI, INSERM U1254, Université de Lorraine, Nancy, France (B.G.)
| | - Mikael Mazighi
- Department of Interventional Neuroradiology, Rothschild Foundation, Paris, France (J.A., F.D., B.M., MP, M.M.).,LVTS, INSERM U1148, University of Paris, France (BM., M.M.).,University of Paris' France (J.A., M.M.)
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Endovascular Treatment of Basilar Artery Occlusion: What Can We Learn from the Results? MEDICINA (KAUNAS, LITHUANIA) 2022; 59:medicina59010096. [PMID: 36676720 PMCID: PMC9866638 DOI: 10.3390/medicina59010096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 12/27/2022] [Accepted: 12/28/2022] [Indexed: 01/03/2023]
Abstract
Background and Objectives: Current guidelines lack specific endovascular treatment (EVT) recommendations for posterior circulation stroke (PCS). The results of earlier studies are controversial. We aimed to compare early hospital outcomes of stroke caused by large-vessel occlusion (LVO) treated with EVT or bridging therapy (BT) in anterior circulation stroke (ACS) versus PCS (middle cerebral artery occlusion (MCAO) and basilar artery occlusion (BAO), and establish the risk factors for poor outcome. Materials and Methods: we analyzed the data of 279 subjects treated with EVT due to LVO-caused stroke in a comprehensive stroke centre in 2015−2021. The primary outcome was hospital mortality, secondary outcomes were National Institutes of Health Stroke Scale (NIHSS) after 24 h, early neurological deterioration, futile recanalization (FR), the ambulatory outcome at discharge, and complications. Results: BAO presented with higher baseline NIHSS scores (19 vs. 14, p < 0.001), and longer door-to-puncture time (93 vs. 82 min, p = 0.034), compared to MCAO. Hospital mortality and the percentage of FR were the same in BAO and almost two times higher than in MCAO (20.0% vs. 10.3%, p = 0.048), other outcomes did not differ. In BAO, unsuccessful recanalization was the only significant predictor of the lethal outcome, though there were trends for PAD and RF predicting lethal outcome. A trend for higher risk of symptomatic intracranial hemorrhage (sICH) was observed in the BAO group when BT was applied. Nevertheless, neither BT nor sICH predicted lethal outcomes in the BAO group. Conclusions: Compared to the modern gold standard of EVT in the ACS, early outcomes in BAO remain poor, there is a substantial amount of FR. Nevertheless, unsuccessful recanalization remains the strongest predictor of lethal outcomes. BT in PCS might pose a higher risk for sICH, but not the lethal outcome, although this finding requires further investigation in larger trials.
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12
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Yu X, Richard SA, Fuhua Y, Jianfeng J, Xinmin Z, Min W. Mechanical thrombectomy for vertebral and basilar artery occlusions: An institutional experience with 17 patients. MEDICINE INTERNATIONAL 2022; 2:32. [PMID: 36699156 PMCID: PMC9829235 DOI: 10.3892/mi.2022.57] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 10/17/2022] [Indexed: 01/27/2023]
Abstract
Acute ischemic stroke of the posterior circulation as a result of vertebrobasilar artery occlusions is often associated with severe morbidity and mortality rates. Vertebrobasilar artery occlusion retrieval via mechanical thrombectomy (MT) is a novel treatment modality for occlusive strokes. Nevertheless, factors associated with positive outcomes have not yet been adequately investigated. Thus, the present study focused on factors associated with good prognosis following this type of treatment. The present study retrospectively analyzed a series of 17 patients with acute vertebral artery occlusions (VAOs) and basilar artery occlusions (BAOs) treated with MT. In all patients, information such as sex and age, time from admission to the onset of femoral artery access, the number of thrombi removed, the time of femoral artery access to recanalization, pre- and post-operative National Institutes of Health Stroke Scale (NIHSS) scores, pre- and post-operative thrombolysis in cerebral infarction, as well as modified Rankin scale scores were documented and analyzed. The analysis comprised of 11 patients with BAOs and 6 patients with VAOs. A recanalization rate of 70.6% was achieved with an overall good functional outcome of 58.8% at 90 days. Observationally, there was a notable improvement in outcomes when comparing the NIHSS prior to surgery with NIHSS at 1 week after the surgery. A lower NIHSS score prior to MT may be a good prognostic factor. An average time of ~5.5 h from patient admittance to recanalization with a 70.6% recanalization rate with an overall good functional outcome of 58.8% at 90 days suggested that, patients for whom the surgeries were performed within 5 h of admittance may still have hope for recanalization compared to an initial 1.5-h average time for recanalization.
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Affiliation(s)
- Xu Yu
- Department of Neurosurgery, Jiangyin Hospital, Southeast University, Jiangyin, Jiangsu 214400, P.R. China
| | - Seidu A. Richard
- Department of Medicine, Princefield University, P.O. Box MA-128, Ho, Volta Region, Ghana
| | - Ye Fuhua
- Department of Neurosurgery, Jiangyin Hospital, Southeast University, Jiangyin, Jiangsu 214400, P.R. China
| | - Jiang Jianfeng
- Department of Neurosurgery, Jiangyin Hospital, Southeast University, Jiangyin, Jiangsu 214400, P.R. China
| | - Zhou Xinmin
- Department of Neurosurgery, Jiangyin Hospital, Southeast University, Jiangyin, Jiangsu 214400, P.R. China
| | - Wu Min
- Department of Neurosurgery, Jiangyin Hospital, Southeast University, Jiangyin, Jiangsu 214400, P.R. China,Correspondence to: Professor Wu Min, Department of Neurosurgery, Jiangyin Hospital, Southeast University, 16 Shou Mountain Road, Jiangyin, Jiangsu 214400, P.R. China
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13
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Kwak Y, Son W, Kim BJ, Kim M, Yoon SY, Park J, Lim J, Kim J, Kang DH. Frictional force analysis of stent retriever devices using a realistic vascular model: Pilot study. Front Neurol 2022; 13:964354. [PMID: 36090887 PMCID: PMC9449119 DOI: 10.3389/fneur.2022.964354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 08/05/2022] [Indexed: 11/23/2022] Open
Abstract
Objective To date, no vascular model to analyze frictional forces between stent retriever devices and vessel walls has been designed to be similar to the real human vasculature. We developed a novel in vitro intracranial cerebrovascular model and analyzed frictional forces of three stent retriever devices. Methods A vascular mold was created based on digital subtraction angiography of a patient's cerebral vessels. The vascular model was constructed using polydimethylsiloxane (PDMS, Dow Corning, Inc.) as a silicone elastomer. The vascular model was coated on its inner surface with a lubricating layer to create a low coefficient of friction (~0.037) to closely approximate the intima. A pulsatile blood pump was used to produce blood flow inside the model to approximate real vascular conditions. The frictional forces of Trevo XP, Solitaire 2, and Eric 4 were analyzed for initial and maximal friction retrieval forces using this vascular model. The total pulling energy generated during the 3 cm movement was also obtained. Results Results for initial retrieval force were as follows: Trevo, 0.09 ± 0.04 N; Solitaire, 0.25 ± 0.07 N; and Eric, 0.33 ± 0.21 N. Results for maximal retrieval force were as follows: Trevo, 0.36 ± 0.07 N; Solitaire, 0.54 ± 0.06 N; and Eric, 0.80 ± 0.13 N. Total pulling energy (N·cm) was 0.40 ± 0.10 in Trevo, 0.65 ± 0.10 in Solitaire, and 0.87 ± 0.14 in Eric, respectively. Conclusions Using a realistic vascular model, different stent retriever devices were shown to have statistically different frictional forces. Future studies using a realistic vascular model are warranted to assess SRT devices.
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Affiliation(s)
- Youngseok Kwak
- Department of Neurosurgery, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Wonsoo Son
- Department of Neurosurgery, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Byoung-Joon Kim
- Department of Neurosurgery, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Myungsoo Kim
- Department of Neurosurgery, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Sang-Youl Yoon
- Department of Neurosurgery, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Jaechan Park
- Department of Neurosurgery, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Jongkyeong Lim
- Department of Mechanical Engineering, Gachon University, Seongnam-si, South Korea
| | - Joonwon Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, South Korea
- Joonwon Kim
| | - Dong-Hun Kang
- Department of Neurosurgery, School of Medicine, Kyungpook National University, Daegu, South Korea
- Departement of Radiology, School of Medicine, Kyungpook National University, Daegu, South Korea
- *Correspondence: Dong-Hun Kang
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14
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Pillai Perianen P, Yan B. Are We Ready to Offer Endovascular Thrombectomy to All Patients With Large Ischemic Core? Front Neurol 2022; 13:893975. [PMID: 35493819 PMCID: PMC9043548 DOI: 10.3389/fneur.2022.893975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 03/18/2022] [Indexed: 11/13/2022] Open
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15
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Haranhalli N, Fortunel A, Javed K, Zampolin R, Brook A, Liberman A, Lee SK, Altschul D, Schechter C. Cost-effective analysis of mechanical thrombectomy (MT) in patients with poor baseline modified Rankin Score (mRS). J Clin Neurosci 2022; 99:94-98. [PMID: 35278935 DOI: 10.1016/j.jocn.2022.03.007] [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: 03/30/2021] [Revised: 02/11/2022] [Accepted: 03/02/2022] [Indexed: 11/25/2022]
Abstract
Mechanical thrombectomy (MT) has been established as a standard of care for patients with acute ischemic stroke for the past five years. However, the direct benefits of this treatment in patients with baseline disability remains unclear. This study aims to elucidate the cost impact of performing MT on patients with moderate-to-severe baseline disability to work towards an optimized system of care for acute ischemic stroke. We developed a Markov economic model with a life-time horizon analysis of costs associated with mechanical thrombectomy in patients grouped on baseline disability as defined by modified Rankin Score. Our clinical and economic data is based on an American payer perspective. Our results identified a marginal cost-effective ratio (mCER) of $18,835.00 per quality-adjusted life year (QALY) when mechanical thrombectomy is reserved as a treatment only for patients with no-to-minimal baseline disability as compared to those with any level of baseline disability. Our results provide a framework for these future studies and highlight key sectors that drive cost in the surgical treatment and life-long care of patients with acute ischemic stroke.
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Affiliation(s)
- Neil Haranhalli
- Department of Neurosurgery, Montefiore Medical Center, Bronx, NY, USA.
| | - Adisson Fortunel
- Department of Neurosurgery, Montefiore Medical Center, Bronx, NY, USA
| | - Kainaat Javed
- Department of Neurosurgery, Montefiore Medical Center, Bronx, NY, USA
| | - Richard Zampolin
- Department of Radiology, Montefiore Medical Center, Bronx, NY, USA
| | - Allan Brook
- Department of Radiology, Montefiore Medical Center, Bronx, NY, USA
| | - Ava Liberman
- Department of Neurology, Montefiore Medical Center, Bronx, NY, USA
| | - Seon-Kyu Lee
- Department of Radiology, Montefiore Medical Center, Bronx, NY, USA
| | - David Altschul
- Department of Radiology, Montefiore Medical Center, Bronx, NY, USA
| | - Clyde Schechter
- Departments of Family and Social Medicine and Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
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16
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Endovascular Intervention in Acute Ischemic Stroke: History and Evolution. Biomedicines 2022; 10:biomedicines10020418. [PMID: 35203626 PMCID: PMC8962313 DOI: 10.3390/biomedicines10020418] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 01/27/2022] [Accepted: 01/29/2022] [Indexed: 12/26/2022] Open
Abstract
Stroke is a leading cause of serious long-term disability in the US. Endovascular therapy (EVT), in the form of mechanical thrombectomy, is now a standard of care for patients with acute ischemic stroke with a large vessel occlusion. This article reviews the evolution of EVT in the management of acute ischemic stroke and how it has led to the concept of tissue window over the widely publicized time window.
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17
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Mushannen T, Aleyadeh R, Siddiqui M, Saqqur M, Akhtar N, Mesraoua B, Al Jerdi S, Melikyan G, Shaheen Y, Qadourah H, Chagoury O, Mahfoud ZR, Haddad N. Effect of Reperfusion Therapies on Incidence of Early Post-Stroke Seizures. Front Neurol 2021; 12:758181. [PMID: 34880824 PMCID: PMC8645550 DOI: 10.3389/fneur.2021.758181] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 10/19/2021] [Indexed: 11/13/2022] Open
Abstract
Objective: This study aimed to determine the effect of reperfusion therapies on the occurrence of early post-stroke seizures (PSS) in patients with acute ischemic stroke (AIS). Background: Reperfusion therapies are paramount to the treatment of stroke in the acute phase. However, their effect on the incidence of early seizures after an AIS remains unclear. Design and Methods: The stroke database at Hamad Medical Corporation was used to identify all patients who received reperfusion therapies for AIS from 2016 to 2019. They were matched with patients of similar diagnosis, gender, age, and stroke severity as measured by National Institutes of Health Stroke Scale (NIHSS) who did not receive such treatment. The rates of early PSS were calculated for each group. Results: The results showed that 508 patients received reperfusion therapies (342 had IV thrombolysis only, 70 had thrombectomies only, and 96 had received both), compared with 501 matched patients receiving standard stroke unit care. Patients who received reperfusion therapies were similar to their matched controls for mean admission NIHSS score (9.87 vs. 9.79; p = 0.831), mean age (53.3 vs. 53.2 years; p = 0.849), and gender distribution (85 vs. 86% men; p = 0.655). The group receiving reperfusion therapies was found to have increased stroke cortical involvement (62 vs. 49.3%, p < 0.001) and hemorrhagic transformation rates (33.5 vs. 18.6%, p < 0.001) compared with the control group. The rate of early PSS was significantly lower in patients who received reperfusion therapies compared with those who did not (3.1 vs. 5.8%, respectively; p = 0.042). When we excluded seizures occurring at stroke onset prior to any potential treatment implementation, the difference in early PSS rates between the two groups was no longer significant (2.6 vs. 3.9%, respectively; p = 0.251). There was no significant difference in early PSS rate based on the type of reperfusion therapy either (3.2% with thrombolysis, 2.9% with thrombectomy, and 3.1% for the combined treatment, p = 0.309). Conclusions: Treatment of AIS with either thrombectomy, thrombolysis, or both does not increase the risk of early PSS.
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Affiliation(s)
- Tasnim Mushannen
- Department of Neurology, Weill Cornell Medicine-Qatar, Ar-Rayyan, Qatar
| | - Rozaleen Aleyadeh
- Department of Neurology, Weill Cornell Medicine-Qatar, Ar-Rayyan, Qatar
| | - Maria Siddiqui
- Department of Neurology Hamad Medical Corporation, Weill Cornell Medicine-Qatar, Doha, Qatar
| | - Maher Saqqur
- Department of Neurology, Weill Cornell Medicine-Qatar, Ar-Rayyan, Qatar.,Department of Neurology Hamad Medical Corporation, Weill Cornell Medicine-Qatar, Doha, Qatar
| | - Naveed Akhtar
- Department of Neurology Hamad Medical Corporation, Weill Cornell Medicine-Qatar, Doha, Qatar
| | - Boulenouar Mesraoua
- Department of Neurology, Weill Cornell Medicine-Qatar, Ar-Rayyan, Qatar.,Department of Neurology Hamad Medical Corporation, Weill Cornell Medicine-Qatar, Doha, Qatar
| | - Salman Al Jerdi
- Department of Neurology, Weill Cornell Medicine-Qatar, Ar-Rayyan, Qatar.,Department of Neurology Hamad Medical Corporation, Weill Cornell Medicine-Qatar, Doha, Qatar
| | - Gayane Melikyan
- Department of Neurology, Weill Cornell Medicine-Qatar, Ar-Rayyan, Qatar.,Department of Neurology Hamad Medical Corporation, Weill Cornell Medicine-Qatar, Doha, Qatar
| | - Yanal Shaheen
- Department of Neurology, Weill Cornell Medicine-Qatar, Ar-Rayyan, Qatar
| | - Haneen Qadourah
- Department of Neurology, Weill Cornell Medicine-Qatar, Ar-Rayyan, Qatar
| | - Odette Chagoury
- Department of Medicine, Weill Cornell Medicine-Qatar, Ar-Rayyan, Qatar.,Qatar Metabolic Institute, Hamad Medical Corporation, Doha, Qatar
| | - Ziyad R Mahfoud
- Department of Population Health Sciences, Weill Cornell Medicine-Qatar, Ar-Rayyan, Qatar
| | - Naim Haddad
- Department of Neurology, Weill Cornell Medicine-Qatar, Ar-Rayyan, Qatar.,Department of Neurology Hamad Medical Corporation, Weill Cornell Medicine-Qatar, Doha, Qatar
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18
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Park EH, Gil YJ, Kim C, Kim BJ, Hwang SS. Presence of Thrombectomy-capable Stroke Centers Within Hospital Service Areas Explains Regional Variation in the Case Fatality Rate of Acute Ischemic Stroke in Korea. J Prev Med Public Health 2021; 54:385-394. [PMID: 34875821 PMCID: PMC8655371 DOI: 10.3961/jpmph.21.329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 08/12/2021] [Indexed: 11/09/2022] Open
Abstract
OBJECTIVES This study aimed to explore the status of regional variations in acute ischemic stroke (AIS) treatment and investigate the association between the presence of a thrombectomy-capable stroke center (TSC) and the case fatality rate (CFR) of AIS within hospital service areas (HSAs). METHODS This observational cross-sectional study analyzed acute stroke quality assessment program data from 262 hospitals between 2013 and 2016. TSCs were defined according to the criteria of the Joint Commission. In total, 64 HSAs were identified based on the addresses of hospitals. We analyzed the effects of structure factors, process factors, and the presence of a TSC on the CFR of AIS using multivariate logistic regression. RESULTS Among 262 hospitals, 31 hospitals met the definition of a TSC. Of the 64 HSAs, only 20 had a TSC. At hospitals, the presence of a stroke unit, the presence of stroke specialists, and the rate of endovascular thrombectomy (EVT) treatment were associated with reductions in the CFR. In HSAs, the rate of EVT treatment (odds ratio [OR], 0.98; 95% confidence interval [CI], 0.97 to 0.99) and the presence of a TSC (OR, 0.93; 95% CI, 0.88 to 0.99) significantly reduced the CFR of AIS. CONCLUSIONS The presence of a TSC within an HSA, corresponding to structure and process factors related to the quality of care, contributed significantly to lowering the CFR of AIS. The CFR also declined as the rate of treatment increased. This study highlights the importance of TSCs in the development of an acute stroke care system in Korea.
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Affiliation(s)
- Eun Hye Park
- Department of Preventive Medicine, Graduate School of Public Health, Seoul National University, Seoul, Korea
| | - Yong Jin Gil
- Department of Preventive Medicine, Graduate School of Public Health, Seoul National University, Seoul, Korea
| | - Chanki Kim
- Department of Preventive Medicine, Graduate School of Public Health, Seoul National University, Seoul, Korea
| | - Beom Joon Kim
- Department of Neurology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Seung-Sik Hwang
- Department of Preventive Medicine, Graduate School of Public Health, Seoul National University, Seoul, Korea
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19
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Kummer B, Shakir L, Kwon R, Habboushe J, Jetté N. Usage Patterns of Web-Based Stroke Calculators in Clinical Decision Support: Retrospective Analysis. JMIR Med Inform 2021; 9:e28266. [PMID: 34338647 PMCID: PMC8369374 DOI: 10.2196/28266] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 05/24/2021] [Accepted: 06/05/2021] [Indexed: 12/29/2022] Open
Abstract
Background Clinical scores are frequently used in the diagnosis and management of stroke. While medical calculators are increasingly important support tools for clinical decisions, the uptake and use of common medical calculators for stroke remain poorly characterized. Objective We aimed to describe use patterns in frequently used stroke-related medical calculators for clinical decisions from a web-based support system. Methods We conducted a retrospective study of calculators from MDCalc, a web-based and mobile app–based medical calculator platform based in the United States. We analyzed metadata tags from MDCalc’s calculator use data to identify all calculators related to stroke. Using relative page views as a measure of calculator use, we determined the 5 most frequently used stroke-related calculators between January 2016 and December 2018. For all 5 calculators, we determined cumulative and quarterly use, mode of access (eg, app or web browser), and both US and international distributions of use. We compared cumulative use in the 2016-2018 period with use from January 2011 to December 2015. Results Over the study period, we identified 454 MDCalc calculators, of which 48 (10.6%) were related to stroke. Of these, the 5 most frequently used calculators were the CHA2DS2-VASc score for atrial fibrillation stroke risk calculator (5.5% of total and 32% of stroke-related page views), the Mean Arterial Pressure calculator (2.4% of total and 14.0% of stroke-related page views), the HAS-BLED score for major bleeding risk (1.9% of total and 11.4% of stroke-related page views), the National Institutes of Health Stroke Scale (NIHSS) score calculator (1.7% of total and 10.1% of stroke-related page views), and the CHADS2 score for atrial fibrillation stroke risk calculator (1.4% of total and 8.1% of stroke-related page views). Web browser was the most common mode of access, accounting for 82.7%-91.2% of individual stroke calculator page views. Access originated most frequently from the most populated regions within the United States. Internationally, use originated mostly from English-language countries. The NIHSS score calculator demonstrated the greatest increase in page views (238.1% increase) between the first and last quarters of the study period. Conclusions The most frequently used stroke calculators were the CHA2DS2-VASc, Mean Arterial Pressure, HAS-BLED, NIHSS, and CHADS2. These were mainly accessed by web browser, from English-speaking countries, and from highly populated areas. Further studies should investigate barriers to stroke calculator adoption and the effect of calculator use on the application of best practices in cerebrovascular disease.
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Affiliation(s)
- Benjamin Kummer
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, United States.,Clinical Informatics, Mount Sinai Health System, New York, NY, United States
| | | | | | - Joseph Habboushe
- MD Aware LLC, New York, NY, United States.,Department of Emergency Medicine, Weill Cornell Medicine, New York, NY, United States
| | - Nathalie Jetté
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, United States.,Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY, United States
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20
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Baek JW, Heo YJ, Kim ST, Seo JH, Jeong HW, Kim EG. Comparison of the Solitaire and Trevo Stents for Endovascular Treatment of Acute Ischemic Stroke: A Single.Center Experience. Neurol India 2021; 69:378-382. [PMID: 33904457 DOI: 10.4103/0028-3886.314580] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Aims Limited studies have compared the effectiveness of Solitaire and Trevo stentrievers for endovascular thrombectomy to achieve recanalization and improve functional outcomes of patients with acute ischemic stroke. Therefore, we compared the safety and efficacy of the two stents during endovascular thrombectomy for patients with acute ischemic stroke. Materials and Methods This study included 130 patients who underwent endovascular thrombectomy using either the Trevo (n = 51) or the Solitaire (n = 79) stent for anterior circulation acute ischemic stroke. Recanalization was classified using thrombolysis in cerebral infarction (TICI) grading. Efficacy and safety of the devices during endovascular thrombectomy were analyzed by evaluating the rate of good recanalization after the first pass, clot retrieval rate, final recanalization grade, use of rescue treatment, recanalization time, and hemorrhagic and thromboembolic complications. Results Overall, good recanalization (TICI grades 2b and 3) was achieved (Solitaire: n = 57, 72.2%; Trevo: n = 46, 90.2%) (P = 0.01). The rate of good recanalization after the first pass and clot retrieval rate were similar between groups; however, the use of rescue treatment was more frequent in the Solitaire group. Recanalization time was shorter in the Trevo group. The good clinical outcome rate was higher in the Trevo group but not statistically significantly. The rates of symptomatic hemorrhage and thromboembolism were not significantly different between groups. Conclusion The Trevo stent achieved more successful recanalization with less need for rescue treatment and less time for recanalization than the Solitaire stent. There was no statistically significant difference in the clinical outcomes.
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Affiliation(s)
- Jin Wook Baek
- Department of Diagnostic Radiology, Busan Paik Hospital, Inje University, Busan, Korea
| | - Young Jin Heo
- Department of Diagnostic Radiology, Busan Paik Hospital, Inje University, Busan, Korea
| | - Sung Tae Kim
- Department of Neurosurgery, Busan Paik Hospital, Inje University, Busan, Korea
| | - Jung Hwa Seo
- Department of Neurology, Busan Paik Hospital, Inje University, Busan, Korea
| | - Hae Woong Jeong
- Department of Diagnostic Radiology, Busan Paik Hospital, Inje University, Busan, Korea
| | - Eung-Gyu Kim
- Department of Neurology, Busan Paik Hospital, Inje University, Busan, Korea
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21
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Controversies in Imaging of Patients with Acute Ischemic Stroke: AJR Expert Panel Narrative Review. AJR Am J Roentgenol 2021; 217:1027-1037. [PMID: 34106758 DOI: 10.2214/ajr.21.25846] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The development of reperfusion therapies has profoundly impacted stroke care, initially with the advent of IV thrombolytic (IVT) treatment and, more recently, with the development and refinement of endovascular treatment (EVT). Progress in neuroimaging has supported the paradigm shift of stroke care, and advanced neuroimaging now has a fundamental role in triaging patients for both IVT and EVT. As the standard of care for acute ischemic stroke (AIS) evolves, controversies remain in certain clinical scenarios. This article explores the use of multimodality imaging for treatment selection of AIS in the context of recent guidelines, highlighting controversial topics and providing guidance for clinical practice. Results of major randomized trials supporting EVT are reviewed. Advantages and disadvantages of CT, CTA, MRI, and MRA in stroke diagnosis are summarized, with attention to level 1 evidence supporting the role of vascular imaging and perfusion imaging. Patient selection is compared between approaches based on time thresholds and physiologic approaches based on infarct core measurement using imaging. Moreover, various imaging approaches to core measurement are described. As ongoing studies push treatment boundaries, advanced imaging is expected to help identify a widening range of patients who may benefit from therapy.
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22
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Fereidoonnezhad B, Dwivedi A, Johnson S, McCarthy R, McGarry P. Blood clot fracture properties are dependent on red blood cell and fibrin content. Acta Biomater 2021; 127:213-228. [PMID: 33812070 DOI: 10.1016/j.actbio.2021.03.052] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 03/19/2021] [Accepted: 03/23/2021] [Indexed: 12/20/2022]
Abstract
Thrombus fragmentation during endovascular stroke treatment, such as mechanical thrombectomy, leads to downstream emboli, resulting in poor clinical outcomes. Clinical studies suggest that fragmentation risk is dependent on clot composition. This current study presents the first experimental characterization of the composition-dependent fracture properties of blood clots, in addition to the development of a predictive model for blood clot fragmentation. A bespoke experimental test-rig and compact tension specimen fabrication has been developed to measure fracture toughness of thrombus material. Fracture tests are performed on three physiologically relevant clot compositions: a high-fibrin clot made from a 5% haematocrit (H) blood mixture, a medium-fibrin clot made form a 20% H blood mixture, a low-fibrin clot made from a 40% H blood mixture. Fracture toughness is observed to significantly increase with increasing fibrin content, i.e. red blood cell-rich clots are more prone to tear during loading compared to the fibrin-rich clots. Results also reveal that the mechanical behaviour of clot analogues is significantly different in compression and tension. Finite element cohesive zone modelling of clot fracture experiments show that fibrin fibres become highly aligned in the direction perpendicular to crack propagation, providing a significant toughening mechanism. The results presented in this study provide the first characterization of the composition-dependent fracture behaviour of blood clots and are of key importance for development of next-generation thrombectomy devices and clinical strategies. STATEMENT OF SIGNIFICANCE: This study provides a characterisation of the composition-dependent fracture toughness of blood clots. This entails the development of novel experimental techniques for fabrication and testing of blood clot compact tension fracture specimens. The study also develops cohesive zone models of fracture initiation and propagation in blood clots. Results reveal that the fracture resistance of fibrin-rich clots is significantly higher than red blood cell rich clots. Simulations also reveal that stretching and realignment of the fibrin network should be included in blood clot material models in order to accurately replicate compression-tension asymmetry and fibrin enhanced fracture toughness. The results of this study have potentially important clinical implications in terms of clot fracture risk and secondary embolization during mechanical thrombectomy procedures.
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23
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Rowe ES, Rowe VD, Hunter J, Gralinski MR, Neves LA. A nephroprotective iodinated contrast agent with cardioprotective properties: A pilot study. J Neuroimaging 2021; 31:706-713. [PMID: 33979019 PMCID: PMC8359965 DOI: 10.1111/jon.12873] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/19/2021] [Accepted: 04/20/2021] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND AND PURPOSE Evaluation and treatment of acute ischemic syndromes, in the heart and brain, require vessel visualization by iodinated X-ray contrast agents. However, these contrast agents can induce injury, in both the kidneys and target organs themselves. Sulfobutylether beta cyclodextrin (SBECD) added to iohexol (SBECD-iohexol) (Captisol Enabled-iohexol, Ligand Pharmaceuticals, Inc, San Diego, CA) is currently in clinical trials in cardiovascular procedures, to determine its relative renal safety in high-risk patients. Preclinical studies showed that SBECD-iohexol reduced contrast-induced acute kidney injury in rodent models by blocking apoptosis. The current study was undertaken to determine whether SBECD-iohexol is also cardioprotective, in the male rat ischemia-reperfusion model, compared to iohexol alone. METHODS After anesthesia, the left coronary artery was ligated for 30 min and the ligation released and reperfusion followed for 2 h prior to sacrifice. Groups 1-4 were injected in the tail vein 10 min prior to ischemia with: (1) vehicle; (2) iohexol; (3) SBECD; and (4) SBECD-iohexol. Infarct size, hemodynamics, and serum markers were measured. RESULTS An eight-fold increase in serum creatine kinase in the iohexol-alone group was observed, compared with no increase in the SBECD-iohexol group. The mean arterial pressure and rate pressure product were depressed in the iohexol-alone group, but not in the SBECD-iohexol group, or controls. No difference in infarct size or serum creatinine among the groups was observed. CONCLUSION The results of this study suggest that SBECD-iohexol is superior to iohexol alone, for both the preservation of cardiomyocyte integrity and preservation of myocardial function in myocardial ischemia.
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Affiliation(s)
| | | | - John Hunter
- Neurrow Pharmaceuticals, Inc, Shawnee, Kansas, USA
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24
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Advani R. Addressing the Stroke Triage Challenge. Front Neurol 2021; 12:670204. [PMID: 33935959 PMCID: PMC8081897 DOI: 10.3389/fneur.2021.670204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 03/19/2021] [Indexed: 11/16/2022] Open
Affiliation(s)
- Rajiv Advani
- Stroke Unit, Department of Neurology, Oslo University Hospital, Oslo, Norway.,Neuroscience Research Group, Stavanger University Hospital, Stavanger, Norway
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25
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Lyerly MJ. Acute Stroke Care for Patients with Chronic Kidney Disease. J Stroke Cerebrovasc Dis 2021; 30:105725. [PMID: 33745804 DOI: 10.1016/j.jstrokecerebrovasdis.2021.105725] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 02/24/2021] [Accepted: 02/25/2021] [Indexed: 12/20/2022] Open
Abstract
Chronic kidney disease is a common comorbidity in patients presenting to emergency departments with acute ischemic stroke. There are numerous considerations that must be taken into account in the acute diagnosis and management of these patients. CKD patients may have different stroke presentations compared to the general population that may make diagnosis more challenging. With the expanding use of endovascular thrombectomy for acute ischemic stroke, more contrasted studies are being employed as part of the acute evaluation, particularly in the identification of patients with large vessel occlusion and demonstration of salvageable penumbra. For most patients with renal dysfunction, studies such as CT angiography and perfusion may still be performed despite concerns of acute kidney injury. Although patient outcomes with reperfusion therapies such as intravenous alteplase and endovascular thrombectomy are not as robust as those seen within the general population, the available data supports utilization of these therapies among CKD patients. This article provides a review of the factors that must be considered in the acute management of the CKD patient presenting with acute ischemic stroke.
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Affiliation(s)
- Michael J Lyerly
- Department of Neurology, University of Alabama at Birmingham, 1813 6th Avenue South, RWUH M226, Birmingham, AL 35294, USA; Birmingham VA Medical Center, USA.
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26
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Seker F, Bonekamp S, Rode S, Hyrenbach S, Bendszus M, Möhlenbruch MA. Impact of bridging thrombolysis on clinical outcome in stroke patients undergoing endovascular thrombectomy: a retrospective analysis of a regional stroke registry. Neuroradiology 2020; 63:935-941. [PMID: 33330955 PMCID: PMC8128793 DOI: 10.1007/s00234-020-02619-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 12/06/2020] [Indexed: 02/07/2023]
Abstract
Purpose It is unclear whether stroke patients undergoing endovascular thrombectomy (EVT) should receive bridging intravenous thrombolysis (IVT), if eligible. This study aims at analyzing the impact of bridging IVT on short-term clinical outcome. Methods In a prospective regional stroke registry, all stroke patients with premorbid modified Rankin Scale (mRS) score of 0–2 who were admitted within 4.5 h after onset and treated with EVT were analyzed retrospectively. Patients receiving “IVT prior to EVT” (IVEVT) were compared to those undergoing “EVT only” regarding the ratio of good outcome, discharge mRS, mRS shift, hospital mortality, and occurrence of symptomatic intracranial hemorrhage. Results In total, 2022 patients were included, 816 patients (40.4%) achieved good clinical outcome; 1293 patients (63.9%) received bridging IVT. There was no significant difference between both groups regarding the ratio of good outcome (IVEVT 41.4% vs. EVT 38.5%, P = 0.231), discharge mRS (median, IVEVT 3 vs. EVT 3, P = 0.178), mRS shift (median, IVEVT 3 vs. EVT 3, P = 0.960), and hospital mortality (IVEVT 19.3% vs. EVT 19.5%, P = 0.984). Bridging IVT was not a predictor of outcome (adjusted OR 1.00, 95% CI 0.79–1.26, P = 0.979). However, it was an independent predictor of symptomatic intracranial hemorrhage (adjusted OR 1.79, 95% CI 1.21–2.72, P = 0.005). Conclusions The results of the present study suggest that bridging IVT does not seem to improve short-term clinical outcome of patients undergoing EVT. Nonetheless, there might be a subgroup of patients that benefits from IVT. This needs to be addressed in randomized controlled trials. Supplementary Information The online version contains supplementary material available at 10.1007/s00234-020-02619-1.
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Affiliation(s)
- Fatih Seker
- Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Susanne Bonekamp
- Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Susanne Rode
- Qualitätssicherung im Gesundheitswesen Baden-Württemberg GmbH, Stuttgart, Germany
| | - Sonja Hyrenbach
- Qualitätssicherung im Gesundheitswesen Baden-Württemberg GmbH, Stuttgart, Germany
| | - Martin Bendszus
- Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Markus A Möhlenbruch
- Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany.
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27
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Copelan AZ, Smith ER, Drocton GT, Narsinh KH, Murph D, Khangura RS, Hartley ZJ, Abla AA, Dillon WP, Dowd CF, Higashida RT, Halbach VV, Hetts SW, Cooke DL, Keenan K, Nelson J, Mccoy D, Ciano M, Amans MR. Recent Administration of Iodinated Contrast Renders Core Infarct Estimation Inaccurate Using RAPID Software. AJNR Am J Neuroradiol 2020; 41:2235-2242. [PMID: 33214184 DOI: 10.3174/ajnr.a6908] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 08/01/2020] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Automated CTP software is increasingly used for extended window emergent large-vessel occlusion to quantify core infarct. We aimed to assess whether RAPID software underestimates core infarct in patients with an extended window recently receiving IV iodinated contrast. MATERIALS AND METHODS We reviewed a prospective, single-center data base of 271 consecutive patients who underwent CTA ± CTP for acute ischemic stroke from May 2018 through January 2019. Patients with emergent large-vessel occlusion confirmed by CTA in the extended window (>6 hours since last known well) and CTP with RAPID postprocessing were included. Two blinded raters independently assessed CT ASPECTS on NCCT performed at the time of CTP. RAPID software used relative cerebral blood flow of <30% as a surrogate for irreversible core infarct. Patients were dichotomized on the basis of receiving recent IV iodinated contrast (<8 hours before CTP) for a separate imaging study. RESULTS The recent IV contrast and contrast-naïve cohorts comprised 23 and 15 patients, respectively. Multivariate linear regression analysis demonstrated that recent IV contrast administration was independently associated with a decrease in the RAPID core infarct estimate (proportional increase = 0.34; 95% CI, 0.12-0.96; P = .04). CONCLUSIONS Patients who received IV iodinated contrast in proximity (<8 hours) to CTA/CTP as part of a separate imaging study had a much higher likelihood of core infarct underestimation with RAPID compared with contrast-naïve patients. Over-reliance on RAPID postprocessing for treatment disposition of patients with extended window emergent large-vessel occlusion should be avoided, particularly with recent IV contrast administration.
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Affiliation(s)
- A Z Copelan
- From the Departments of Diagnostic and Interventional Neuroradiology (A.Z.C., E.R.S., G.T.D., K.H.N., D.M., R.S.K., Z.J.H., A.A.A., W.P.D., C.F.D., R.T.H., V.V.H., S.W.H., D.L.C., J.N., D.M., M.C., M.R.A.)
| | - E R Smith
- From the Departments of Diagnostic and Interventional Neuroradiology (A.Z.C., E.R.S., G.T.D., K.H.N., D.M., R.S.K., Z.J.H., A.A.A., W.P.D., C.F.D., R.T.H., V.V.H., S.W.H., D.L.C., J.N., D.M., M.C., M.R.A.).,Department of Radiology (E.R.S.), Medical College of Wisconsin, Milwaukee, Wisconsin
| | - G T Drocton
- From the Departments of Diagnostic and Interventional Neuroradiology (A.Z.C., E.R.S., G.T.D., K.H.N., D.M., R.S.K., Z.J.H., A.A.A., W.P.D., C.F.D., R.T.H., V.V.H., S.W.H., D.L.C., J.N., D.M., M.C., M.R.A.)
| | - K H Narsinh
- From the Departments of Diagnostic and Interventional Neuroradiology (A.Z.C., E.R.S., G.T.D., K.H.N., D.M., R.S.K., Z.J.H., A.A.A., W.P.D., C.F.D., R.T.H., V.V.H., S.W.H., D.L.C., J.N., D.M., M.C., M.R.A.)
| | - D Murph
- From the Departments of Diagnostic and Interventional Neuroradiology (A.Z.C., E.R.S., G.T.D., K.H.N., D.M., R.S.K., Z.J.H., A.A.A., W.P.D., C.F.D., R.T.H., V.V.H., S.W.H., D.L.C., J.N., D.M., M.C., M.R.A.)
| | - R S Khangura
- From the Departments of Diagnostic and Interventional Neuroradiology (A.Z.C., E.R.S., G.T.D., K.H.N., D.M., R.S.K., Z.J.H., A.A.A., W.P.D., C.F.D., R.T.H., V.V.H., S.W.H., D.L.C., J.N., D.M., M.C., M.R.A.)
| | - Z J Hartley
- From the Departments of Diagnostic and Interventional Neuroradiology (A.Z.C., E.R.S., G.T.D., K.H.N., D.M., R.S.K., Z.J.H., A.A.A., W.P.D., C.F.D., R.T.H., V.V.H., S.W.H., D.L.C., J.N., D.M., M.C., M.R.A.)
| | - A A Abla
- From the Departments of Diagnostic and Interventional Neuroradiology (A.Z.C., E.R.S., G.T.D., K.H.N., D.M., R.S.K., Z.J.H., A.A.A., W.P.D., C.F.D., R.T.H., V.V.H., S.W.H., D.L.C., J.N., D.M., M.C., M.R.A.).,Neurosurgery (A.A.A.), University of California, San Francisco, San Francisco, California
| | - W P Dillon
- From the Departments of Diagnostic and Interventional Neuroradiology (A.Z.C., E.R.S., G.T.D., K.H.N., D.M., R.S.K., Z.J.H., A.A.A., W.P.D., C.F.D., R.T.H., V.V.H., S.W.H., D.L.C., J.N., D.M., M.C., M.R.A.)
| | - C F Dowd
- From the Departments of Diagnostic and Interventional Neuroradiology (A.Z.C., E.R.S., G.T.D., K.H.N., D.M., R.S.K., Z.J.H., A.A.A., W.P.D., C.F.D., R.T.H., V.V.H., S.W.H., D.L.C., J.N., D.M., M.C., M.R.A.)
| | - R T Higashida
- From the Departments of Diagnostic and Interventional Neuroradiology (A.Z.C., E.R.S., G.T.D., K.H.N., D.M., R.S.K., Z.J.H., A.A.A., W.P.D., C.F.D., R.T.H., V.V.H., S.W.H., D.L.C., J.N., D.M., M.C., M.R.A.)
| | - V V Halbach
- From the Departments of Diagnostic and Interventional Neuroradiology (A.Z.C., E.R.S., G.T.D., K.H.N., D.M., R.S.K., Z.J.H., A.A.A., W.P.D., C.F.D., R.T.H., V.V.H., S.W.H., D.L.C., J.N., D.M., M.C., M.R.A.)
| | - S W Hetts
- From the Departments of Diagnostic and Interventional Neuroradiology (A.Z.C., E.R.S., G.T.D., K.H.N., D.M., R.S.K., Z.J.H., A.A.A., W.P.D., C.F.D., R.T.H., V.V.H., S.W.H., D.L.C., J.N., D.M., M.C., M.R.A.)
| | - D L Cooke
- From the Departments of Diagnostic and Interventional Neuroradiology (A.Z.C., E.R.S., G.T.D., K.H.N., D.M., R.S.K., Z.J.H., A.A.A., W.P.D., C.F.D., R.T.H., V.V.H., S.W.H., D.L.C., J.N., D.M., M.C., M.R.A.)
| | - K Keenan
- Department of Neurology (K.K.), University of California Davis, Sacramento, California
| | - J Nelson
- From the Departments of Diagnostic and Interventional Neuroradiology (A.Z.C., E.R.S., G.T.D., K.H.N., D.M., R.S.K., Z.J.H., A.A.A., W.P.D., C.F.D., R.T.H., V.V.H., S.W.H., D.L.C., J.N., D.M., M.C., M.R.A.)
| | - D Mccoy
- From the Departments of Diagnostic and Interventional Neuroradiology (A.Z.C., E.R.S., G.T.D., K.H.N., D.M., R.S.K., Z.J.H., A.A.A., W.P.D., C.F.D., R.T.H., V.V.H., S.W.H., D.L.C., J.N., D.M., M.C., M.R.A.)
| | - M Ciano
- From the Departments of Diagnostic and Interventional Neuroradiology (A.Z.C., E.R.S., G.T.D., K.H.N., D.M., R.S.K., Z.J.H., A.A.A., W.P.D., C.F.D., R.T.H., V.V.H., S.W.H., D.L.C., J.N., D.M., M.C., M.R.A.)
| | - M R Amans
- From the Departments of Diagnostic and Interventional Neuroradiology (A.Z.C., E.R.S., G.T.D., K.H.N., D.M., R.S.K., Z.J.H., A.A.A., W.P.D., C.F.D., R.T.H., V.V.H., S.W.H., D.L.C., J.N., D.M., M.C., M.R.A.)
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Sultan S, Acharya Y, Barrett N, Hynes N. A pilot protocol and review of triple neuroprotection with targeted hypothermia, controlled induced hypertension, and barbiturate infusion during emergency carotid endarterectomy for acute stroke after failed tPA or beyond 24-hour window of opportunity. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:1275. [PMID: 33178807 PMCID: PMC7607101 DOI: 10.21037/atm-2020-cass-14] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
An alternative to tissue plasminogen activator (tPA) failure has been a daunting challenge in ischemic stroke management. As tPA is time-dependent, delays can occur in definitive treatment while passively waiting to observe a clinical response to intravenous thrombolysis. Until today, uncertainty exists in the management strategy of wake-up stroke patients or those presenting beyond the therapeutic tPA window. Clinical dilemmas in these situations can prolong the transitional period of inertia, resulting in an adverse neurological outcome. We propose and review an innovative approach called triple neuro-protection (TNP), which encompasses three technical domains-targeted hypothermia, systemic induced hypertension, and barbiturates infusion, to protect the brain during carotid endarterectomy after failed tPA and/or beyond the 24-hour therapeutic mechanical thrombectomy window. This proposal assimilates discussion on the clinical evidence of the individual domains of TNP with our own clinical experience with TNP. Our first TNP was successfully employed in a 55-year-old man in 2015 while performing emergency carotid endarterectomy after he was referred to us 72 hours post tPA failure. The patient had a successful clinical outcome despite being in therapeutic inertia with 90–99% ipsilateral carotid stenosis and contralateral occlusion on presentation. In the last five years, we have safely used TNP in 25 selected cases with favourable clinical outcomes.
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Affiliation(s)
- Sherif Sultan
- Western Vascular Institute, Department of Vascular and Endovascular Surgery, University Hospital Galway, National University of Ireland, Galway, Ireland.,Department of Vascular & Endovascular Surgery, Galway Clinic, Royal College of Surgeons of Ireland/National University of Ireland Affiliated Teaching Hospitals, Doughiska, Galway, Ireland
| | - Yogesh Acharya
- Western Vascular Institute, Department of Vascular and Endovascular Surgery, University Hospital Galway, National University of Ireland, Galway, Ireland
| | - Nora Barrett
- Western Vascular Institute, Department of Vascular and Endovascular Surgery, University Hospital Galway, National University of Ireland, Galway, Ireland
| | - Niamh Hynes
- Department of Vascular & Endovascular Surgery, Galway Clinic, Royal College of Surgeons of Ireland/National University of Ireland Affiliated Teaching Hospitals, Doughiska, Galway, Ireland
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Reverté-Villarroya S, Dávalos A, Font-Mayolas S, Berenguer-Poblet M, Sauras-Colón E, López-Pablo C, Sanjuan-Menéndez E, Muñoz-Narbona L, Suñer-Soler R. Coping Strategies, Quality of Life, and Neurological Outcome in Patients Treated with Mechanical Thrombectomy after an Acute Ischemic Stroke. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17176014. [PMID: 32824892 PMCID: PMC7503747 DOI: 10.3390/ijerph17176014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/11/2020] [Accepted: 08/13/2020] [Indexed: 01/29/2023]
Abstract
New reperfusion therapies have improved the clinical recovery rates of acute ischemic stroke patients (AISP), but it is not known whether other factors, such as the ability to cope, might also have an effect. The aim of this study was to evaluate the effect of endovascular treatment (EVT) on coping strategies, quality of life, and neurological and functional outcomes in AISP at 3 months and 1 year post-stroke. A multicenter, prospective, longitudinal, and comparative study of a sub-study of the participants in the Endovascular Revascularization with Solitaire Device versus Best Medical Therapy in Anterior Circulation Stroke within 8 Hours (REVASCAT) clinical trial was conducted after recruiting from two stroke centers in Catalonia, Spain. The cohort consisted of 82 ischemic stroke patients (n = 42 undergoing EVT and n = 40 undergoing standard best medical treatment (BMT) as a control group), enrolled between 2013–2015. We assessed the coping strategies using the Brief Coping Questionnaire (Brief-COPE-28), the health-related quality of life (HRQoL) with the EQ-5D questionnaire, and the neurological and functional status using the National Institute of Health Stroke Scale (NIHSS), Barthel Index (BI), modified Rankin Scale (mRS), and Stroke Impact Scale-16 (SIS-16). Bivariate analyses and multivariate linear regression models were used. EVT patients were the ones that showed better neurological and functional outcomes, and more patients presented reporting no pain/discomfort at 3 months; paradoxically, problem-focused coping strategies were found to be significantly higher in patients treated with BMT at 1 year.
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Affiliation(s)
- Silvia Reverté-Villarroya
- Department of Nursing, Rovira Virgili University, Campus Terres de l’Ebre, 43500 Tortosa, Spain; (M.B.-P.); (C.L.-P.)
- Hospital de Tortosa Verge de la Cinta, Pere Virgili Institut, 43500 Tortosa, Spain;
- Correspondence:
| | - Antoni Dávalos
- RETICS Research Group, Department of Neurosciences, Hospital Universitari Germans Trias i Pujol, 08916 Badalona, Spain; (A.D.); (L.M.-N.)
| | | | - Marta Berenguer-Poblet
- Department of Nursing, Rovira Virgili University, Campus Terres de l’Ebre, 43500 Tortosa, Spain; (M.B.-P.); (C.L.-P.)
- Hospital de Tortosa Verge de la Cinta, Pere Virgili Institut, 43500 Tortosa, Spain;
| | - Esther Sauras-Colón
- Hospital de Tortosa Verge de la Cinta, Pere Virgili Institut, 43500 Tortosa, Spain;
| | - Carlos López-Pablo
- Department of Nursing, Rovira Virgili University, Campus Terres de l’Ebre, 43500 Tortosa, Spain; (M.B.-P.); (C.L.-P.)
- Hospital de Tortosa Verge de la Cinta, Pere Virgili Institut, 43500 Tortosa, Spain;
| | | | - Lucía Muñoz-Narbona
- RETICS Research Group, Department of Neurosciences, Hospital Universitari Germans Trias i Pujol, 08916 Badalona, Spain; (A.D.); (L.M.-N.)
| | - Rosa Suñer-Soler
- Department of Nursing, University of Girona, 17003 Girona, Spain;
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Memon MZ, Kushnirsky M, Brunet MC, Saini V, Koch S, Yavagal DR. Mechanical thrombectomy in isolated large vessel posterior cerebral artery occlusions. Neuroradiology 2020; 63:111-116. [PMID: 32748080 DOI: 10.1007/s00234-020-02505-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 07/28/2020] [Indexed: 01/01/2023]
Abstract
PURPOSE Mechanical thrombectomy (MT) in posterior circulation large vessel occlusion (LVO), including posterior cerebral artery (PCA), has not been validated since all five major MT trials excluded such patients. To evaluate the feasibility and preliminary safety and efficacy of MT in isolated PCA occlusion stroke patients with new-generation MT devices. METHODS Endovascularly treated acute ischemic stroke (AIS) patients were identified from a prospectively collected database and their baseline characteristics were noted. Clinical outcomes were angiographic recanalization, a favorable clinical outcome at 3 months on modified Rankin Scale (mRS) and visual field (VF) deficit improvement on confrontation test, rate of intracranial hemorrhage (ICH), and mortality at 3 months. RESULTS A total of 355 AIS patients underwent MT from January 2018 to December 2019. Isolated PCA MT was performed in 15 consecutive patients. The mean age was 64 ± 17 years, and 9(60%) were women. Median presentation NIHSS was 9 (interquartile range 5-15). MT devices used were stent retrievers in 6 patients and combined aspiration and stent retriever in 9 patients. Complete revascularization (TICI 2c or 3) was achieved in 12/15 patients. 3-month VF normalization was seen in 7/12 of the patients. Post-procedure symptomatic ICH occurred in 1/15 of patients. mRS score of 0-2 was achieved in 9/15 of patients but one patient was dead at 3 months post procedure. CONCLUSION MT is feasible and can achieve successful reperfusion in isolated PCA occlusions and resulted in favorable motor and visual outcomes in this small series of ischemic stroke patients.
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Affiliation(s)
- Muhammad Zeeshan Memon
- Departments of Neurology and Neurosurgery, Jackson Memorial Hospital, University of Miami Miller School of Medicine Miami, FL, Miami, USA.
| | - Marina Kushnirsky
- Departments of Neurology and Neurosurgery, Jackson Memorial Hospital, University of Miami Miller School of Medicine Miami, FL, Miami, USA
| | - Marie Christine Brunet
- Departments of Neurology and Neurosurgery, Jackson Memorial Hospital, University of Miami Miller School of Medicine Miami, FL, Miami, USA
| | - Vasu Saini
- Departments of Neurology and Neurosurgery, Jackson Memorial Hospital, University of Miami Miller School of Medicine Miami, FL, Miami, USA
| | - Sebastian Koch
- Departments of Neurology and Neurosurgery, Jackson Memorial Hospital, University of Miami Miller School of Medicine Miami, FL, Miami, USA
| | - Dileep R Yavagal
- Departments of Neurology and Neurosurgery, Jackson Memorial Hospital, University of Miami Miller School of Medicine Miami, FL, Miami, USA
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Mechanical thrombectomy in patients with proximal occlusions and low NIHSS: Results from a large prospective registry. J Stroke Cerebrovasc Dis 2020; 29:105091. [PMID: 32912516 DOI: 10.1016/j.jstrokecerebrovasdis.2020.105091] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 05/29/2020] [Accepted: 06/22/2020] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Mechanical thrombectomy is now standard of care for treatment of acute ischemic stroke secondary to large vessel occlusion in the setting of high NIHSS. We analysed a large nationwide registry focusing on patients with large vessel occlusion and low NIHSS on admission to evaluate the efficacy and safety of thrombectomy in this patient population METHODS: 2826 patients treated with mechanical thrombectomy were included in a multicentre registry from January 1, 2011 to December 31, 2015. We included patients with large vessel occlusion and NIHSS ≤ 6 on admission. Baseline characteristics, imaging, clinical outcome, procedure adverse events and positive and negative outcome predictors were analysed. RESULTS 134 patients were included. 90/134 had an anterior circulation and 44 a posterior circulation stroke. One patient died before treatment. Successful revascularization (mTICI 2b-3) was achieved in 73.7% (98/133) of the patients. Intraprocedural adverse event was observed in 3% (4/133) of cases. Symptomatic intracranial haemorrhage rate was 5.3% (7/133). At three months, 70.9% (95/134) of the patients had mRS score 0-2, 15.7% (21/134) mRS 3-5 and 13.4% (18/134) mRS 6. Age and successful recanalization were significant predictors of a good clinical outcome on both univariate (p= 0.005 and p=0.007) and multivariable (p=0.0018 and p=0.009 [nat log]) analysis. Absence of vessel recanalization and symptomatic intracranial hemorrhage were independent predictors of poor outcome (p=0.021) . CONCLUSIONS Our study suggests that patients with large vessel occlusion and low NIHSS score on admission can benefit from mechanical thrombectomy. Randomized trials are warranted.
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Safety of Triple Neuroprotection with Targeted Hypothermia, Controlled Induced Hypertension, and Barbiturate Infusion during Emergency Carotid Endarterectomy for Acute Stroke after Missing the 24 Hours Window Opportunity. Ann Vasc Surg 2020; 69:163-173. [PMID: 32473308 DOI: 10.1016/j.avsg.2020.05.041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 04/30/2020] [Accepted: 05/02/2020] [Indexed: 11/20/2022]
Abstract
BACKGROUND The aim of this study is to establish the initial safety of triple neuroprotection (TNP) in an acute stroke setting in patients presenting outside the window for systemic tissue plasminogen activator (tPA). METHODS Over 12,000 patients were referred to our vascular services with carotid artery disease, of whom 832 had carotid intervention with a stroke rate of 0.72%. Of these, 25 patients presented (3%), between March 2015 and 2019, with acute dense stroke. These patients had either failed tPA or passed the recommended timing for acute stroke intervention. Fifteen (60%) had hemi-neglect with evidence of acute infarct on magnetic resonance imaging of the brain and a Rankin score of 4 or 5. Ninety-six percent had an 80-99% stenosis on the symptomatic side. Mean ABCD3-I score was 11.35. All patients underwent emergency carotid endarterectomy (CEA) with therapeutically induced hypothermia (32-34°C), targeted hypertension (systolic blood pressure 180-200 mm Hg), and brain suppression with barbiturate. RESULTS There were no cases of myocardial infarction, death, cranial nerve injury, wound hematoma, or procedural bleeding. Mean hospital stay was 8.4 (±9.5) days. All cases had resolution of neurological symptoms, except 3 who had failed previous thrombolysis. Eighty percent had a postoperative Rankin score of 0 on discharge and 88% of patients were discharged home with 3 requiring rehabilitation. CONCLUSIONS Positive neurological outcomes and no serious adverse events were observed using TNP during emergency CEA in patients with acute brain injury. We recommend TNP for patients who are at an increased risk of stroke perioperatively, or who have already suffered from an acute stroke beyond the recommended window of 24 hr. Certainly, the positive outcomes are not likely reproducible outside of high-volume units and patients requiring this surgery should be transferred to experienced surgeons in appropriate tertiary referral centers.
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Rudilosso S, Laredo C, Amaro S, Renú A, Llull L, Obach V, Moreno J, Ribó M, Abilleira S, Cardona P, Martí-Fàbregas J, Pérez de la Ossa N, Ramos A, Roquer J, Serena J, Purroy F, Urra X, Chamorro Á. Clinical improvement within 24 hours from mechanical thrombectomy as a predictor of long-term functional outcome in a multicenter population-based cohort of patients with ischemic stroke. J Neurointerv Surg 2020; 13:119-123. [PMID: 32461229 DOI: 10.1136/neurintsurg-2020-015934] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 04/04/2020] [Accepted: 04/10/2020] [Indexed: 01/19/2023]
Abstract
BACKGROUND Single-center studies have suggested that the early clinical course after mechanical thrombectomy (MT) in patients with ischemic stroke is a clinical predictor of long-term outcome. OBJECTIVE To analyze the prognostic value of clinical improvement within 24 hours in a population-based multicenter cohort. METHODS From a total of 3792 patients with acute ischemic stroke in Catalonia (CICAT registry), 1951 patients were treated with MT. The National Institutes of Health Stroke Scale (NIHSS) score within 24 hours, and follow-up was available in 1666 patients. Percentage variation in the NIHSS score was calculated in relation to a baseline assessment. Good outcome was defined as a modified Rankin Scale score ≤2 at 90 days. Predictive values of clinical improvement and adjusted OR to predict good outcomes were assessed in the whole cohort and the subgroup of patients with posterior circulation stroke (n=166). RESULTS Good outcome was achieved in 656/1666 patients (39%) overall. Percentage improvements both at the end of MT and at 24 hours predicted good outcome, with higher predictive capacity at 24 hours (C-statistic, 0.85 vs 0.73, p<0.001). Positive and negative predictive values were 70% and 74% for the >30% cut-off point at the end of MT, and 69% and 84% for the >50% cut-off point at 24 hours, respectively. The adjusted OR for good outcome was 5.8 (95% CI 4.2 to 8.1) and 12.9 (95% CI 9.7 to 17.1), respectively. In patients with posterior circulation stroke, the predictive value of the improvement at 24 hours was similar (C-statistic 0.90). CONCLUSION Clinical improvement of patients within 24 hours of MT is a reliable and robust predictor of long-term prognosis, including patients with posterior circulation occlusions.
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Affiliation(s)
- Salvatore Rudilosso
- Comprehensive Stroke Unit, Hospital Clínic de Barcelona, Barcelona, Catalonia, Spain
| | - Carlos Laredo
- Comprehensive Stroke Unit, Hospital Clínic de Barcelona, Barcelona, Catalonia, Spain
| | - Sergio Amaro
- Comprehensive Stroke Unit, Hospital Clínic de Barcelona, Barcelona, Catalonia, Spain
| | - Arturo Renú
- Comprehensive Stroke Unit, Hospital Clínic de Barcelona, Barcelona, Catalonia, Spain
| | - Laura Llull
- Comprehensive Stroke Unit, Hospital Clínic de Barcelona, Barcelona, Catalonia, Spain
| | - Víctor Obach
- Comprehensive Stroke Unit, Hospital Clínic de Barcelona, Barcelona, Catalonia, Spain
| | - Javier Moreno
- Department of Radiology, Hospital Clínic de Barcelona, Barcelona, Catalonia, Spain
| | - Marc Ribó
- Stroke Unit. Neurology, Hospital Vall d'Hebron, Barcelona, Catalonia, Spain
| | - Sònia Abilleira
- Health Department of Catalonia, Stroke Programme, Agency for Health Quality and Assessment of Catalonia, Barcelona, Spain
| | - Pedro Cardona
- Department of Neurology, Bellvitge University Hospital, L'Hospitalet de Llobregat, Catalonia, Spain
| | - Joan Martí-Fàbregas
- Department of Neurology, Hospital de Sant Pau I Santa Creu, Barcelona, Catalonia, Spain
| | - Natalia Pérez de la Ossa
- Stroke Unit, Department of Neurology, Hospital Germans Trias i Pujol, Badalona, Catalonia, Spain
| | - Anna Ramos
- Stroke Unit, Department of Neurology, Hospital Germans Trias i Pujol, Badalona, Catalonia, Spain
| | - Jaume Roquer
- Department of Neurology, Hospital del Mar, Barcelona, Catalonia, Spain
| | - Joaquín Serena
- Department of Neurology, Hospital Universitari de Girona Doctor Josep Trueta, Girona, Catalonia, Spain
| | - Francisco Purroy
- Department of Neurology, Hospital Arnau de Vilanova, Lleida, Catalonia, Spain
| | - Xabier Urra
- Comprehensive Stroke Unit, Hospital Clínic de Barcelona, Barcelona, Catalonia, Spain
| | - Ángel Chamorro
- Comprehensive Stroke Unit, Hospital Clínic de Barcelona, Barcelona, Catalonia, Spain
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Sun X, Zhang H, Tong X, Gao F, Ma G, Miao Z. Effects of Periprocedural Tirofiban vs. Oral Antiplatelet Drug Therapy on Posterior Circulation Infarction in Patients With Acute Intracranial Atherosclerosis-Related Vertebrobasilar Artery Occlusion. Front Neurol 2020; 11:254. [PMID: 32351442 PMCID: PMC7174752 DOI: 10.3389/fneur.2020.00254] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 03/17/2020] [Indexed: 01/01/2023] Open
Abstract
Background and purpose: Tirofiban and oral antiplatelet drugs can be used to inhibit reocclusion and restore microvascular reperfusion during endovascular treatment (EVT). This study compared recanalization rates, symptomatic intracranial hemorrhage (SICH), 90 day mortality, and functional outcomes between periprocedural tirofiban and antiplatelet therapy in patients with acute intracranial atherosclerosis-related vertebrobasilar artery occlusion. Methods: A total of 105 consecutive patients with acute intracranial atherosclerosis-related vertebrobasilar artery occlusion who underwent EVT + tirofiban + oral antiplatelet or EVT + oral antiplatelet therapy at the Beijing Tiantan Hospital between January 2012 and July 2018 were included. Baseline characteristics, procedural parameters, and functional outcomes were assessed. Results: Among the 105 patients, 74 underwent EVT + tirofiban + oral antiplatelet therapy, while 31 underwent EVT + oral antiplatelet drug therapy. EVT + tirofiban + oral antiplatelet therapy resulted in higher recanalization rates compared to EVT + oral antiplatelet drug therapy (93.24% vs. 77.42%; p = 0.038), whereas the risk for SICH, 90 day mortality, and functional independence outcomes did not differ between the groups. Logistic regression analysis revealed that EVT + tirofiban + oral antiplatelet therapy had an increased probability of higher recanalization rates (OR 0.18 [95% confidence interval (CI) 1.24–24.39]; p = 0.025). There were no differences in SICH (OR 0.00 [95% CI 0.00–Inf]; p = 0.998), 90 day mortality (OR 1.19 [95% CI 0.17–4.05]; p = 0.826), or functional independence (modified Rankin score 0 to ≤ 2) (OR 1.43 [95% CI 0.23–2.17]; p = 0.538) between the groups. Conclusions: Ninety day functional outcomes of EVT + tirofiban + oral antiplatelet therapy were not superior to those of EVT + oral antiplatelet drug therapy; however, the recanalization rate was higher and the risks for SICH and 90 day mortality were lower.
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Affiliation(s)
- Xuan Sun
- Department of Interventional Neuroadiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Huijun Zhang
- Department of Neurology, Tong Ren Hospital Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Xu Tong
- Department of Interventional Neuroadiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Feng Gao
- Department of Interventional Neuroadiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Gaoting Ma
- Department of Interventional Neuroadiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Zhongrong Miao
- Department of Interventional Neuroadiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
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Rebchuk AD, O’Neill ZR, Szefer EK, Hill MD, Field TS. Health Utility Weighting of the Modified Rankin Scale: A Systematic Review and Meta-analysis. JAMA Netw Open 2020; 3:e203767. [PMID: 32347948 PMCID: PMC7191324 DOI: 10.1001/jamanetworkopen.2020.3767] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
IMPORTANCE The utility-weighted modified Rankin Scale (UW-mRS) has been proposed as a patient-centered alternative primary outcome for stroke clinical trials. However, to date, there is no clear consensus on an approach to weighting the mRS. OBJECTIVE To characterize the between-study variability in utility weighting of the mRS in a population of patients who experienced stroke and its implications when applied to the results of a clinical trial. DATA SOURCES In this systematic review and meta-analysis, MEDLINE, Embase, and PsycINFO were searched from January 1987 through May 2019 using major search terms for stroke, health utility, and mRS. STUDY SELECTION Original research articles published in English were reviewed. Included were studies with participants 18 years or older with ischemic or hemorrhagic stroke, transient ischemic attack, or subarachnoid hemorrhage, with mRS scores and utility weights evaluated concurrently. A total of 5725 unique articles were identified. Of these, 283 met criteria for full-text review, and 24 were included in the meta-analysis. DATA EXTRACTION AND SYNTHESIS PRISMA guidelines for systematic review were followed. Data extraction was performed independently by multiple researchers. Data were pooled using mixed models. MAIN OUTCOMES AND MEASURES The mean utility weights and 95% CIs were calculated for each mRS score and health utility scale. Geographic differences in weighting for the EuroQoL 5-dimension (EQ-5D) and Stroke Impact Scale-based UW-mRS were explored using inverse variance-weighted linear models. The results of 18 major acute stroke trials cited in current guidelines were then reanalyzed using the UW-mRS weighting scales identified in the systematic review. RESULTS The meta-analysis included 22 389 individuals; the mean (SD) age of participants was 65.9 (4.0) years, and the mean (SD) proportion of male participants was 58.2% (7.5%). For all health utility scales evaluated, statistically significant differences were observed between the mean utility weights by mRS score. For studies using an EQ-5D-weighted mRS, between-study variance was higher for worse (mRS 2-5) compared with better (mRS 0-1) scores. Of the 18 major acute stroke trials with reanalyzed results, 3 had an unstable outcome when using different UW-mRSs. CONCLUSIONS AND RELEVANCE Multiple factors, including cohort-specific characteristics and health utility scale selection, can influence mRS utility weighting. If the UW-mRS is selected as a primary outcome, the approach to weighting may alter the results of a clinical trial. Researchers using the UW-mRS should prospectively and concurrently obtain mRS scores and utility weights to characterize study-specific outcomes.
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Affiliation(s)
- Alexander D. Rebchuk
- Faculty of Medicine, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Zoe R. O’Neill
- Faculty of Medicine, McGill University, Montreal, Quebec, Canada
| | | | - Michael D. Hill
- Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Thalia S. Field
- Faculty of Medicine, The University of British Columbia, Vancouver, British Columbia, Canada
- Djavad Mowafaghian Centre for Brain Health, The University of British Columbia, Vancouver, British Columbia, Canada
- Vancouver Stroke Program, The University of British Columbia, Vancouver, British Columbia, Canada
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Johnson S, McCarthy R, Fahy B, Mereuta OM, Fitzgerald S, Gaudirc J, Remadi JP, Shotar E, Sourour NA, Doyle K, Gilvarry M, McGarry P, McHugh PE, Clarençon F. Development of an in vitro model of calcified cerebral emboli in acute ischemic stroke for mechanical thrombectomy evaluation. J Neurointerv Surg 2020; 12:1002-1007. [PMID: 31900353 DOI: 10.1136/neurintsurg-2019-015595] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 12/12/2019] [Accepted: 12/15/2019] [Indexed: 01/22/2023]
Abstract
: BACKGROUND: Calcified cerebral emboli (CCEs) are a rare cause of acute ischemic stroke (AIS) and are frequently associated with poor outcomes. The presence of dense calcified material enables reliable identification of CCEs using non-contrast CT. However, recanalization rates with the available mechanical thrombectomy (MT) devices remain low. OBJECTIVE: To recreate a large vessel occlusion involving a CCE using an in vitro silicone model of the intracranial vessels and to demonstrate the feasability of this model to test different endovascular strategies to recanalize an occlusion of the M1 segment of the middle cerebral artery (MCA). : METHODS: An in vitro model was developed to evaluate different endovascular treatment approaches using contemporary devices in the M1 segment of the MCA. The in vitro model consisted of a CCE analog placed in a silicone neurovascular model. Development of an appropriate CCE analog was based on characterization of human calcified tissues that represent likely sources of CCEs. Feasibility of the model was demonstrated in a small number of MT devices using four common procedural techniques. : RESULTS: CCE analogs were developed with similar mechanical behavior to that of ex vivo calcified material. The in vitro model was evaluated with various MT techniques and devices to show feasibility of the model. In this limited evaluation, the most successful retrieval approach was performed with a stent retriever combined with local aspiration through a distal access catheter, and importantly, with flow arrest and dual aspiration using a balloon guide catheter. : CONCLUSION: Characterization of calcified tissues, which are likely sources of CCEs, has shown that CCEs are considerably stiffer than thrombus. This highlights the need for a different in vitro AIS model for CCEs than those used for thromboemboli. Consequentially, an in vitro AIS model representative of a CCE occlusion in the M1 segment of the MCA has been developed.
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Affiliation(s)
- Sarah Johnson
- Biomedical Engineering, National University of Ireland Galway, Galway, Ireland
| | - Ray McCarthy
- Cerenovus, Galway Neuro Technology Centre, Galway, Ireland
| | - Brian Fahy
- Cerenovus, Galway Neuro Technology Centre, Galway, Ireland
| | | | - Seán Fitzgerald
- Department of Physiology, National University of Ireland Galway, Galway, Ireland
| | - Julien Gaudirc
- Department of Vascular Surgery, Pitié-Salpêtrière Hospital, Paris, France
| | - Jean-Paul Remadi
- Department of Cardiac Surgery, Amiens University Hospital, Amiens, France
| | - Eimad Shotar
- Department of Neuroradiology, Pitie-Salpetriere Hospital, Paris, France
| | | | - Karen Doyle
- Department of Physiology, National University of Ireland Galway, Galway, Ireland
| | | | - Patrick McGarry
- Biomedical Engineering, National University of Ireland Galway, Galway, Ireland
| | - Peter E McHugh
- Biomedical Engineering, National University of Ireland Galway, Galway, Ireland
| | - Frédéric Clarençon
- Department of Neuroradiology, Pitie-Salpetriere Hospital, Paris, France .,Sorbonne University, Paris, France
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Morrison C, Aravindan S, Rennie A, Liversedge T. Stroke management in children. Paediatr Anaesth 2020; 30:17-24. [PMID: 31733159 DOI: 10.1111/pan.13768] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 11/01/2019] [Accepted: 11/11/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Christa Morrison
- Department of Anaesthesia, Great Ormond Street Hospital, London, UK
| | | | - Adam Rennie
- Department of Interventional Radiology, Great Ormond Street Hospital, London, UK
| | - Tim Liversedge
- Department of Anaesthesia, Great Ormond Street Hospital, London, UK
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Roeder HJ, Lopez JR, Miller EC. Ischemic stroke and cerebral venous sinus thrombosis in pregnancy. HANDBOOK OF CLINICAL NEUROLOGY 2020; 172:3-31. [PMID: 32768092 PMCID: PMC7528571 DOI: 10.1016/b978-0-444-64240-0.00001-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Maternal ischemic stroke and cerebral venous sinus thrombosis (CVST) are dreaded complications of pregnancy and major contributors to maternal disability and mortality. This chapter summarizes the incidence and risk factors for maternal arterial ischemic stroke (AIS) and CVST and discusses the pathophysiology of maternal AIS and CVST. The diagnosis, treatment, and secondary preventive strategies for maternal stroke are also reviewed. Special populations at high risk of maternal stroke, including women with moyamoya disease, sickle cell disease, HIV, thrombophilia, and genetic cerebrovascular disorders, are highlighted.
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Affiliation(s)
- Hannah J Roeder
- Department of Neurology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, United States
| | - Jean Rodriguez Lopez
- Department of Neurology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, United States
| | - Eliza C Miller
- Department of Neurology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, United States; NewYork-Presbyterian Hospital, Columbia University Irving Medical Center, New York, NY, United States.
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Nogueira RG, Lima FO, Pontes-Neto OM, S Silva G, José Mont'Alverne F, Abud DG, Frudit M, Passos P, Haussen DC, Dabus G, de Freitas GR, Oliveira-Filho J, Bezerra DC, Liebeskind DS, Wagner MB, Passos JE, Molina CA, Broderick J, Saver JL, Martins SO. Randomization of endovascular treatment with stent-retriever and/or thromboaspiration versus best medical therapy in acute ischemic stroke due to large vessel occlusion trial: Rationale and design. Int J Stroke 2019; 16:100-109. [PMID: 31793395 DOI: 10.1177/1747493019890700] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND RESILIENT is a prospective, multicenter, randomized phase III trial to test the safety, efficacy, and cost-effectiveness of mechanical thrombectomy as compared to medical treatment alone in patients treated under the less than ideal conditions typically found in the public healthcare system of a developing country. METHODS Subjects must fulfill the following main inclusion criteria: symptom onset ≤8 h, age ≥18 years, baseline NIHSS ≥8, evidence of intracranial ICA or proximal MCA (M1 segment) occlusion, ASPECTS ≥6 on CT or >5 on DWI-MRI and be either ineligible for or unresponsive to intravenous alteplase. The primary end-point is the distribution of disability levels (on the modified Rankin Scale, mRS) at 90 days under the intention-to-treat principle. RANDOMIZATION Randomization is performed under a minimization process using age, baseline NIHSS, intravenous alteplase use, occlusion site and center. DESIGN The trial is designed with an expectation of a 10% difference in the proportion of favorable outcome (mRS 0-2 at 90 days) common odds ratio of 1.615. PRIMARY OUTCOME Projected sample size is 690 subjects with pre-planned interim analyses at 174, 346, and 518 subjects. SECONDARY OUTCOMES Secondary end-points include: 90-day functional independence (mRS ≤2), mRS shift stratified for treatment with IV rt-PA at 90 days, infarct volume on 24 h CT or MRI, early dramatic response (NIHSS 0-2 or improvement ≥8 points) at 24 h, vessel recanalization evaluated by CTA or MRA at 24 h, and the post-procedure rate of successful reperfusion (defined as a modified Treatment in Cerebral Infarction 2b or greater). Safety variables are mortality at 90 days, symptomatic intracranial hemorrhage at 24 h and procedure-related complications.
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Affiliation(s)
- Raul G Nogueira
- Department of Neurology, Marcus Stroke & Neuroscience Center, Grady Memorial Hospital, 12239Emory University School of Medicine, Atlanta, GA, USA
| | - Fabricio O Lima
- Neurology Service, 365090Hospital Geral de Fortaleza, Fortaleza-CE, Brazil.,Department of Neurology, 28128Universidade de Fortaleza, Fortaleza-CE, Brazil
| | - Octávio M Pontes-Neto
- Stroke Service-Neurology Division, Department of Neuroscience and Behavioral Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Gisele S Silva
- Neurology and Neurosurgery Department, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil.,Academic Research Organization, 37896Hospital Israelita Albert Einstein São Paulo, São Paulo, Brazil
| | | | - Daniel G Abud
- Department of Internal Medicine, Radiology Division, Hospital das Clínicas-Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Sao Paulo, Brazil
| | - Michel Frudit
- Neurointerventional Radiology Service, Federal University of São Paulo, São Paulo, Brazil
| | - Paulo Passos
- 156417Hospital Moinhos de Vento, Porto Alegre, Brazil
| | - Diogo C Haussen
- Department of Neurology, Marcus Stroke & Neuroscience Center, Grady Memorial Hospital, 12239Emory University School of Medicine, Atlanta, GA, USA
| | - Guilherme Dabus
- Miami Cardiac and Vascular Institute and Baptist Neuroscience Center, Miami, FL, USA
| | - Gabriel R de Freitas
- 519983D'Or Institute for Research and Education, 28110Universidade Federal Fluminense, Rio de Janeiro, Brazil
| | - Jamary Oliveira-Filho
- Postgraduate Program in Health Sciences, 28111Federal University of Bahia School of Medicine, Salvador, BA, Brazil
| | - Daniel C Bezerra
- Department of Neurology, Hospital Pró-Cardíaco, Rio de Janeiro, Brazil
| | - David S Liebeskind
- Department of Neurology and Comprehensive Stroke Center, 8783University of California Los Angeles David Geffen School of Medicine, Los Angeles, CA, USA
| | - Mario B Wagner
- School of Medicine, 28124Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - José Ef Passos
- Administrative Director of the National Council of Municipal Health Secretariats, Bauru, São Paulo
| | - Carlos A Molina
- Stroke Unit, Department of Neurology, Vall d'Hebron University Hospital, Vall d'Hebron Research Institute, Autonomous University of Barcelona, Barcelona, Spain
| | - Joseph Broderick
- Department of Neurology and Rehabilitation Medicine, 12303University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Jeffrey L Saver
- Department of Neurology and Comprehensive Stroke Center, 8783University of California Los Angeles David Geffen School of Medicine, Los Angeles, CA, USA
| | - Sheila O Martins
- 156417Hospital Moinhos de Vento, Porto Alegre, Brazil.,Neurology Service, Hospital de Clínicas de Porto Alegre, 28124Federal University of Rio Grande do Sul, Porto Alegre, Brazil
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Kim MS, Kim GS. Single Centre Experience on Decision Making for Mechanical Thrombectomy Based on Single-Phase CT Angiography by Including NCCT and Maximum Intensity Projection Images - A Comparison with Magnetic Resonance Imaging after Non-Contrast CT. J Korean Neurosurg Soc 2019; 63:188-201. [PMID: 31658804 PMCID: PMC7054116 DOI: 10.3340/jkns.2019.0131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 09/01/2019] [Indexed: 11/27/2022] Open
Abstract
Objective The purpose of this study was to suggest that computed tomography angiography (CTA) is valuable as the only preliminary examination for mechanical thrombectomy (MT). MT after single examination of CTA including non-contrast computed tomography (NCCT) and maximum intensity projection (MIP) improves door-to-puncture time as well as results in favorable outcomes.
Methods A total of 157 patients who underwent MT at Dong Kang Medical Center from April 2015 to March 2019 were divided into two groups based on the examination performed prior to MT : CTA group who underwent CTA with NCCT and MIP, and NCCT+magnetic resonance image (MRi) group who underwent MRI including perfusion images after NCCT. In the two groups, time to CTA imaging or NCCT+MRi imaging after symptom onset, and time to arterial puncture and reperfusion were characterized as time-related outcomes. The evaluation of vascular recanalization after MT was defined as a modified thrombolysis in cerebral infarction (mTICI) scale. National Institutes of Health Stroke Scale (NIHSS) was assessed at the time of the visit to the emergency room and modified Rankin Scale (mRS) was assessed after 90 days.
Results Typically, there were 34 patients in the CTA group and 33 patients in the NCCT+MRi group. A significantly shorter delay for door-to-puncture time was observed (mean, 86±22.1 vs. 176±47.5 minutes; p<0.01). Also, a significantly shorter door-to-imege time in the CTA group was observed (mean, 13±6.8 vs. 93±30.8 minutes; p<0.01). Moreover, a significantly shorter onset-to-puncture time was observed (mean, 195±128.0 vs. 314±157.6 minutes; p<0.01). Reperfusion result of mTICI ≥2b was 100% (34/34) in the CTA group and 94% (31/33) in the NCCT+MRi group, and mTICI 3 in 74% (25/34) in the CTA group and 73% (24/33) in the NCCT+MRi group. Favorable functional outcomes (mRS score ≤2 at 90 days) were 68% (23/34) in the CTA group and 60% (20/33) in the NCCT+MRi group.
Conclusion A single-phase CTA including NCCT and MIP images was performed as a single preliminary examination, which led to a reduction in the time of the procedure and resulted in good results of prognosis. Consequently, it is concluded that this method is of sufficient value as the only preliminary examination for decision making.
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Affiliation(s)
- Myeong Soo Kim
- Department of Neurosurgery, Dong Kang Medical Center, Ulsan, Korea
| | - Gi Sung Kim
- Department of Radiology, Dong Kang Medical Center, Ulsan, Korea
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Chen B, Yang L, Hang J, You S, Li J, Li X, Wang L, Jiang L, Li W, Yu H. Predictive value of the THRIVE score for outcome in patients with acute basilar artery occlusion treated with thrombectomy. Brain Behav 2019; 9:e01418. [PMID: 31557420 PMCID: PMC6790301 DOI: 10.1002/brb3.1418] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 08/19/2019] [Accepted: 08/27/2019] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND AND PURPOSE A higher Totaled Health Risks in Vascular Events (THRIVE) score has been shown to predict poor functional outcome in patients with acute ischemic stroke (AIS) and anterior circulation large vessel occlusions undergoing thrombectomy treatment. We attempted to evaluate the value of the THRIVE score in predicting the outcome of thrombectomy treatment in AIS patients with basilar artery occlusion (BAO). METHODS A total of 68 AIS patients with BAO who underwent thrombectomy treatment from May 2014 to August 2018 were included in the present study. Multivariable logistic regression was performed to determine the predictive value of the THRIVE score for poor functional outcome (defined as modified Rankin Scale score ≥ 3), all-cause mortality, and hemorrhage transformation (HT) at 3 months. RESULTS A total of 42 (61.8%) participants experienced poor functional outcomes, 25 (36.8%) patients died from all causes, and 21 (30.9%) patients had HT during the 3-month follow-up. Multivariable logistic regression showed that a higher THRIVE score was significantly associated with poor functional outcome (odds ratio [OR] 5.86, 95% confidence interval [CI], 2.28-14.91, p < .001) as well as all-cause mortality (OR 2.40, 95% CI, 1.32-4.34, p = .004) but not HT (p = .607). The C-statistic of the THRIVE score was significantly larger than that of the NIHSS score for predicting poor functional outcome (AUC = 0.913; cutoff > 5; sensitivity, 88.5%; specificity, 83.3%, p = .007) and all-cause mortality (AUC = 0.768; cutoff > 5; sensitivity, 92.0%; specificity, 65.1%, p = .018). CONCLUSIONS A high THRIVE score was independently associated with an increased risk of poor functional outcome and all-cause mortality in AIS patients with BAO who underwent thrombectomy treatment. Moreover, the THRIVE score appeared to be a better predictor of clinical outcome than the NIHSS score.
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Affiliation(s)
- Beilei Chen
- Clinical Medical College of Yangzhou University, Yangzhou City, China.,Department of Neurology, Northern Jiangsu People's Hospital, Yangzhou City, China
| | - Liu Yang
- Dalian Medical University, Dalian City, China
| | - Jing Hang
- Clinical Medical College of Yangzhou University, Yangzhou City, China.,Department of Neurology, Northern Jiangsu People's Hospital, Yangzhou City, China
| | - Shoujiang You
- Department of Neurology and Suzhou Clinical Research Center of Neurological Disease, The Second Affiliated Hospital of Soochow University, Suzhou City, China
| | - Jun Li
- Department of Neurology, Northern Jiangsu People's Hospital, Yangzhou City, China
| | - Xiaobo Li
- Clinical Medical College of Yangzhou University, Yangzhou City, China.,Department of Neurology, Northern Jiangsu People's Hospital, Yangzhou City, China
| | | | - Li Jiang
- Department of Neurology, Northern Jiangsu People's Hospital, Yangzhou City, China
| | - Wei Li
- Clinical Medical College of Yangzhou University, Yangzhou City, China
| | - Hailong Yu
- Clinical Medical College of Yangzhou University, Yangzhou City, China.,Department of Neurology, Northern Jiangsu People's Hospital, Yangzhou City, China.,Drum Tower Hospital, Medical School of Nanjing University, Nanjing City, China
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Rudilosso S, Urra X, Amaro S, Llull L, Renú A, Laredo C, Obach V, Chamorro Á. Timing and Relevance of Clinical Improvement After Mechanical Thrombectomy in Patients With Acute Ischemic Stroke. Stroke 2019; 50:1467-1472. [DOI: 10.1161/strokeaha.118.024067] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Salvatore Rudilosso
- From the Comprehensive Stroke Center, Department of Neuroscience, Hospital Clinic, August Pi i Sunyer Biomedical Research Institute (IDIBAPS) (S.R., X.U., S.A., L.L., A.R., C.L., V.O., A.C.), University of Barcelona, Spain
| | - Xabier Urra
- From the Comprehensive Stroke Center, Department of Neuroscience, Hospital Clinic, August Pi i Sunyer Biomedical Research Institute (IDIBAPS) (S.R., X.U., S.A., L.L., A.R., C.L., V.O., A.C.), University of Barcelona, Spain
| | - Sergio Amaro
- From the Comprehensive Stroke Center, Department of Neuroscience, Hospital Clinic, August Pi i Sunyer Biomedical Research Institute (IDIBAPS) (S.R., X.U., S.A., L.L., A.R., C.L., V.O., A.C.), University of Barcelona, Spain
| | - Laura Llull
- From the Comprehensive Stroke Center, Department of Neuroscience, Hospital Clinic, August Pi i Sunyer Biomedical Research Institute (IDIBAPS) (S.R., X.U., S.A., L.L., A.R., C.L., V.O., A.C.), University of Barcelona, Spain
| | - Arturo Renú
- From the Comprehensive Stroke Center, Department of Neuroscience, Hospital Clinic, August Pi i Sunyer Biomedical Research Institute (IDIBAPS) (S.R., X.U., S.A., L.L., A.R., C.L., V.O., A.C.), University of Barcelona, Spain
| | - Carlos Laredo
- From the Comprehensive Stroke Center, Department of Neuroscience, Hospital Clinic, August Pi i Sunyer Biomedical Research Institute (IDIBAPS) (S.R., X.U., S.A., L.L., A.R., C.L., V.O., A.C.), University of Barcelona, Spain
| | - Victor Obach
- From the Comprehensive Stroke Center, Department of Neuroscience, Hospital Clinic, August Pi i Sunyer Biomedical Research Institute (IDIBAPS) (S.R., X.U., S.A., L.L., A.R., C.L., V.O., A.C.), University of Barcelona, Spain
| | - Ángel Chamorro
- From the Comprehensive Stroke Center, Department of Neuroscience, Hospital Clinic, August Pi i Sunyer Biomedical Research Institute (IDIBAPS) (S.R., X.U., S.A., L.L., A.R., C.L., V.O., A.C.), University of Barcelona, Spain
- Medicine Department, School of Medicine (A.C.), University of Barcelona, Spain
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Hassan AE, Kotta H, Garza L, Preston L, Tekle W, Sarraj A, Qureshi AI. Pre-thrombectomy intravenous thrombolytics are associated with increased hospital bills without improved outcomes compared with mechanical thrombectomy alone. J Neurointerv Surg 2019; 11:1187-1190. [PMID: 31103991 DOI: 10.1136/neurintsurg-2019-014837] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 04/26/2019] [Accepted: 04/28/2019] [Indexed: 12/30/2022]
Abstract
OBJECTIVE To investigate whether significant differences exist in hospital bills and patient outcomes between patients who undergo endovascular thrombectomy (EVT) alone and those who undergo EVT with pretreatment intravenous tissue plasminogen activator (IV tPA). METHODS We retrospectively grouped patients in an EVT database into those who underwent EVT alone and those who underwent EVT with pretreatment IV tPA (EVT+IV tPA). Hospital encounter charges (obtained via the hospital's charge capture process), final patient bills (ie, negotiated final bills as per insurance/Medicare rates), demographic information, existing comorbidities, admission and discharge National Institutes of Health Stroke Scale (NIHSS) score, and functional independence data (modified Rankin Scale score 0-2) were collected. Univariate and multivariate statistical analyses were performed. RESULTS Of a total of 254 patients, 96 (37.8%) underwent EVT+IV tPA. Median NIHSS score at admission was significantly higher in the EVT+IV tPA group than in the EVT group (p=0.006). After adjusting for NIHSS admission score, patient bills and encounter charges in the EVT+IV tPA group were still found to be $3861.64 (95% CI $658.84 to $7064.45, p=0.02) and $158 071.29 (95% CI $134 641.50 to $181 501.08, p < 0.001) greater than in the EVT only group respectively. The EVT+IV tPA group had a higher complication rate of intracranial hemorrhage (ICH) (p=0.005). The EVT and EVT+IV tPA groups did not differ significantly in median discharge NIHSS score (p=0.56), functional independence rate at 90 days (p=0.96), or average length of hospital stay (p=0.21). CONCLUSION Patients treated with EVT+IV tPA have greater hospital encounter charges and final hospital bills as well as higher rates of ICH than patients who undergo treatment with EVT only.
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Affiliation(s)
- Ameer E Hassan
- Department of Neurology, University of Texas Rio Grande Valley, Harlingen, Texas, USA.,Neuroscience Department, Valley Baptist Medical Center - Harlingen, Harlingen, Texas, USA.,Neurology and Radiology, University of Texas Health Science Center, San Antonio, Texas, USA
| | - Hari Kotta
- University of Texas Medical Branch School of Medicine, Galveston, Texas, USA
| | - Leeroy Garza
- Neuroscience Department, Valley Baptist Medical Center - Harlingen, Harlingen, Texas, USA
| | - Laurie Preston
- Neuroscience Department, Valley Baptist Medical Center - Harlingen, Harlingen, Texas, USA.,Clinical Research, Valley Baptist Health System, Harlingen, Texas, USA
| | - Wondwossen Tekle
- Department of Neurology, University of Texas Rio Grande Valley, Harlingen, Texas, USA.,Neuroscience Department, Valley Baptist Medical Center - Harlingen, Harlingen, Texas, USA.,Neurology and Radiology, University of Texas Health Science Center, San Antonio, Texas, USA
| | - Amrou Sarraj
- Department of Neurology, UT Houston, Houston, Texas, USA
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Baracchini C, Farina F, Palmieri A, Kulyk C, Pieroni A, Viaro F, Cester G, Causin F, Manara R. Early hemodynamic predictors of good outcome and reperfusion injury after endovascular treatment. Neurology 2019; 92:e2774-e2783. [DOI: 10.1212/wnl.0000000000007646] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 02/06/2019] [Indexed: 11/15/2022] Open
Abstract
ObjectiveTo find early hemodynamic predictors of outcome and reperfusion injury in patients with acute ischemic stroke due to anterior circulation large artery occlusion (LAO) after endovascular treatment (EVT).MethodsSerial transcranial color-coded sonography examinations assessed the vessel status and cerebral hemodynamics of 185 (109 [58.9%] men, mean age 69.5 ± 12.3 years) consecutive patients with acute anterior circulation LAO soon after, at 48 hours after, and 1 week after EVT.ResultsSuccessful recanalization (odds ratio [OR] 0.25, 95% confidence interval [CI] 0.11–0.61) and normal peak systolic velocity (PSV) ratio (PSV of recanalized middle cerebral artery/PSV of contralateral middle cerebral artery) at 48 hours (OR 0.22, 95% CI 0.15–0.64) and after 1 week (OR 0.11, 95% CI 0.07–0.31) from EVT were independent predictors of good outcome at 3 months. Thrombectomy failure (OR 10.22, 95% CI 1.47–45.53) and pathologic PSV ratio at 1 week from EVT (OR 15.23, 95% CI 4.54–46.72) were associated with a worse 90-day outcome. Patients who subsequently developed postinterventional intracranial hemorrhage (ICH) showed a higher mean PSV ratio (3.5 ± 0.2 vs 2.4 ± 0.1, p < 0.0001) soon after successful recanalization. In multivariate analysis, early PSV ratio was independently associated with postprocedural ICH (OR 8.474, 95% CI 3.066–45.122, p < 0.01]. At 1 week from EVT, 15 of 21 (71.4%) patients with ICH who resumed normal PSV values had a better 90-day outcome (modified Rankin Scale score 0–2: 40% vs 0%).ConclusionPost-EVT ultrasound monitoring of stroke patients might be an effective bedside method for assessing treatment efficacy, shedding light on outcome variability and identifying patients at increased risk of ICH.
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Piedade GS, Schirmer CM, Goren O, Zhang H, Aghajanian A, Faber JE, Griessenauer CJ. Cerebral Collateral Circulation: A Review in the Context of Ischemic Stroke and Mechanical Thrombectomy. World Neurosurg 2019; 122:33-42. [PMID: 30342266 DOI: 10.1016/j.wneu.2018.10.066] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 10/06/2018] [Accepted: 10/08/2018] [Indexed: 01/28/2023]
Abstract
The pial (leptomenigeal) collateral circulation is a key determinant of functional outcome after mechanical thrombectomy after large-vessel ischemic stroke. Patients with good collateral blood flow benefit up to 24 hours after stroke onset, whereas those with poor collateral flow evidence less or no benefit. However, clues to why collateral flow varies so widely among patients have remained elusive. Recent findings in animal studies, which are currently being tested for confirmation in humans, have found that naturally occurring variants of a novel "collateral gene," Rabep2, result in large differences in the extent of anatomic collaterals and thus blood flow and infarct size in mice after stroke. The comprehension of collagerogenesis in humans and the evaluation of collateral status could aid in identifying patients who will benefit not only from mechanical thrombectomy in the extended time window but also from any reperfusion strategy. We performed a literature review focused on radiographic, clinical, and genetic aspects of the collateral circulation.
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Affiliation(s)
- Guilherme Santos Piedade
- Department of Neurosurgery, Geisinger, Pennsylvania, USA; Department of Neurosurgery, University of Düsseldorf, Düsseldorf, Germany
| | | | - Oded Goren
- Department of Neurosurgery, Geisinger, Pennsylvania, USA
| | - Hua Zhang
- Department of Cell Biology and Physiology, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Amir Aghajanian
- Department of Cell Biology and Physiology, University of North Carolina, Chapel Hill, North Carolina, USA
| | - James E Faber
- Department of Cell Biology and Physiology, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Christoph J Griessenauer
- Department of Neurosurgery, Geisinger, Pennsylvania, USA; Research Institute of Neurointervention, Paracelsus Medical University, Salzburg, Austria; Department of Neurosurgery, Paracelsus Medical University, Salzburg, Austria.
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Bernsen MLE, Goldhoorn RJB, van Oostenbrugge RJ, van Zwam WH, Uyttenboogaart M, Roos YBWEM, Hofmeijer J, Martens JM. Equal performance of aspiration and stent retriever thrombectomy in daily stroke treatment. J Neurointerv Surg 2018; 11:631-636. [DOI: 10.1136/neurintsurg-2018-014270] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 10/11/2018] [Accepted: 10/19/2018] [Indexed: 12/20/2022]
Abstract
BackgroundMechanical thrombectomy with stent retrievers has proved to be safe and effective in endovascular treatment of acute ischemic stroke. Direct aspiration has shown revascularization rates comparable to those of stent retrievers in the recent ASTER and COMPASS trials. However, the efficacy of aspiration in routine clinical practice has not yet been shown.ObjectiveTo show that aspiration has clinical and technical outcomes equal to those of stent retriever thrombectomy in daily clinical practice.MethodsWe analysed data of patients with a large vessel occlusion of the anterior circulation registered in the Dutch MR CLEAN Registry between March 2014 and June 2016. Primary outcome was functional outcome measured with the modified Rankin Scale (mRS) score. Secondary outcomes were reperfusion grade, periprocedural complication rate, and procedure duration. Association of treatment technique with functional outcome was estimated with univariable and multivariable ordinal logistic regression analysis and expressed as a common OR (cOR) for a shift towards better outcome on the mRS.ResultsAs first-line treatment, 207 of 1175 patients (17.6%) were treated with direct aspiration, and 968 (82.4%) by a stent retriever. We observed no differences in functional outcome (adjusted cOR=1.020 (95% CI 0.68 to 1.52)) and periprocedural complications. Successful reperfusion (extended Thrombolysis in Cerebral Infarction ≥2b) was similar. Duration of the procedure was shorter with aspiration (57 min (IQR 35–73) vs 70 min (IQR 47–95), p<0.0001).ConclusionDirect aspiration shows clinical outcomes equal to those of stent retriever thrombectomy in our large multicenter real-life cohort. We found no difference in complication rates and shorter procedure times for aspiration.
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Predictors of Endovascular Treatment Among Stroke Codes Activated Within 6 Hours From Symptom Onset. Stroke 2018; 49:2116-2121. [DOI: 10.1161/strokeaha.118.021316] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Eker OF, Saver JL, Goyal M, Jahan R, Levy EI, Nogueira RG, Yavagal DR, Bonafé A. Impact of Anesthetic Management on Safety and Outcomes Following Mechanical Thrombectomy for Ischemic Stroke in SWIFT PRIME Cohort. Front Neurol 2018; 9:702. [PMID: 30210431 PMCID: PMC6123376 DOI: 10.3389/fneur.2018.00702] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 08/03/2018] [Indexed: 01/22/2023] Open
Abstract
Background and purpose: The optimal anesthetic management of acute ischemic stroke patients during mechanical thrombectomy (MT) remains controversial. In this post-hoc analysis, we investigated the impact of anesthesia type on clinical outcomes in patients included in SWIFT PRIME trial. Methods: Ninety-seven patients treated with MT were included. Patients treated in centers with general anesthesia (GA) policy (n = 32) were compared with those treated in centers with conscious sedation (CS) policy (n = 65). Primary outcomes studied included times to treatment initiation (TTI), rates of successful recanalization (TICI 2b/3), and functional independence (mRS 0–2 at 90 days). Secondary outcomes were adverse events, lowest systolic and diastolic blood pressures (LSBP and LDBP) during MT. Univariate analysis and multivariate regression logistic modeling were conducted. Results: The GA-policy and CS-policy groups presented comparable TTI (94 ± 36 min vs. 102 ± 48 min; p = 0.44), rates of TICI 2b/3 recanalization (22/32 [68.8%] vs. 51/65 [78.5%]; p = 0.32). CS-policy was associated to higher rate of functional independence than GA-policy, but the difference was not significant (43/65 [66.2%] vs. 16/32 [50.0%]; p = 0.18). GA-policy patients had a higher rate of postoperative pneumonia (11/32 [34.4%] vs. 8/65 [12.3%]; p = 0.02) and lower LSBP (110 [30,160] mmHg vs. 119 [77,170] mmHg; p = 0.03) and LDBP (55 (15,75) mmHg vs. 67 [40,121]; p < 0.001). When corrected for differences in baseline characteristics, GA-policy was associated with lower rate of functional independence (OR 0.32; p = 0.05). A 10-point increase in perprocedural LDBP was associated with an increased likelihood of favorable outcome (OR 1.51; p = 0.01). Conclusions: GA-policy for MT presented comparable TTI and rates of successful revascularization to CS-policy. However, GA-policy was associated with lower rates of functional independence and with higher incidence of perprocedural hypotension and postoperative pneumonia. Clinical Trial Registration: URL—http://www.clinicaltrials.gov. Unique identifier: NCT01657461
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Affiliation(s)
- Omer F Eker
- Department of Neuroradiology, P. Wertheimer Hospital, Hospices Civils de Lyon, Lyon, France
| | - Jeffrey L Saver
- Department of Neurology and Comprehensive Stroke Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Mayank Goyal
- Department of Radiology and Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - Reza Jahan
- Division of Interventional Neuroradiology, University of California, Los Angeles, Los Angeles, CA, United States
| | - Elad I Levy
- Department of Neurosurgery, State University of New York at Buffalo, Buffalo, NY, United States
| | - Raul G Nogueira
- Marcus Stroke and Neuroscience Center, Grady Memorial Hospital, Department of Neurology, Emory University School of Medicine, Atlanta, GA, United States
| | - Dileep R Yavagal
- Department of Neurology and Neurosurgery, University of Miami Miller School of Medicine-Jackson Memorial Hospital, Miami, FL, United States
| | - Alain Bonafé
- Department of Neuroradiology, Hôpital Gui-de-Chauliac, CHU de Montpellier, Montpellier, France
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Pushie MJ, Crawford AM, Sylvain NJ, Hou H, Hackett MJ, George GN, Kelly ME. Revealing the Penumbra through Imaging Elemental Markers of Cellular Metabolism in an Ischemic Stroke Model. ACS Chem Neurosci 2018; 9:886-893. [PMID: 29370523 DOI: 10.1021/acschemneuro.7b00382] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Stroke exacts a heavy financial and economic burden, is a leading cause of death, and is the leading cause of long-term disability in those who survive. The penumbra surrounds the ischemic core of the stroke lesion and is composed of cells that are stressed and vulnerable to death, which is due to an altered metabolic, oxidative, and ionic environment within the penumbra. Without therapeutic intervention, many cells within the penumbra will die and become part of the growing infarct, however, there is hope that appropriate therapies may allow potential recovery of cells within this tissue region, or at least slow the rate of cell death, therefore, slowing the spread of the ischemic infarct and minimizing the extent of tissue damage. As such, preserving the penumbra to promote functional brain recovery is a central goal in stroke research. While identification of the ischemic infarct, and the infarct/penumbra boundary is relatively trivial using classical histology and microscopy techniques, accurately assessing the penetration of the penumbra zone into undamaged brain tissue, and evaluating the magnitude of chemical alterations in the penumbra, has long been a major challenge to the stroke research field. In this study, we have used synchrotron-based X-ray fluorescence imaging to visualize the elemental changes in undamaged, penumbra, and infarct brain tissue, following ischemic stroke. We have employed a Gaussian mixture model to cluster tissue areas based on their elemental characteristics. The method separates the core of the infarct from healthy tissue, and also demarcates discrete regions encircling the infarct. These regions of interest can be combined with elemental and metabolic data, as well as with conventional histology. The cell populations defined by clustering provide a reproducible means of visualizing the size and extent of the penumbra at the level of the single cell and provide a critically needed tool to track changes in elemental status and penumbra size.
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Affiliation(s)
- M. Jake Pushie
- Department of Surgery, Division of Neurosurgery, College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, Saskatchewan S7N 5E5, Canada
| | - Andrew M. Crawford
- Geological Sciences, College of Arts & Science, University of Saskatchewan, 114 Science Place, Saskatoon, Saskatchewan S7N 5E2, Canada
| | - Nicole J. Sylvain
- Department of Surgery, Division of Neurosurgery, College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, Saskatchewan S7N 5E5, Canada
| | - Huishu Hou
- Department of Surgery, Division of Neurosurgery, College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, Saskatchewan S7N 5E5, Canada
| | - Mark J. Hackett
- Curtin Institute for Functional Molecules and Interfaces, Department of Chemistry, Faculty of Science & Engineering, Curtin University, Kent Street, Bentley, Perth, Western Australia 6102, Australia
- Curtin Health Innovation Research Institute, Curtin University, Bentley, Western Australia 6102, Australia
| | - Graham N. George
- Geological Sciences, College of Arts & Science, University of Saskatchewan, 114 Science Place, Saskatoon, Saskatchewan S7N 5E2, Canada
| | - Michael E. Kelly
- Department of Surgery, Division of Neurosurgery, College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, Saskatchewan S7N 5E5, Canada
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50
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Al-Khaled M, Brüning T, Gottwald C, Roessler F, Royl G, Eckey T. Comparing outcome and recanalization results in patients with anterior circulation stroke following endovascular treatment with and without a treatment with rt-PA: A single-center study. Brain Behav 2018; 8:e00974. [PMID: 29761023 PMCID: PMC5943750 DOI: 10.1002/brb3.974] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 03/11/2018] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVES Endovascular treatment (ET), in addition to a therapy with intravenous recombinant tissue plasminogen activator IV rt-PA in patients with acute ischemic stroke, has been found to improve outcome. However, data about ET in patients who have not received therapy with rt-PA due to contraindications for IV rt-PA are sparse. Comparison of ET with IV rt-PA versus ET alone in patients with stroke is done using a proximal intracranial arterial occlusion (internal carotid artery, middle cerebral artery (M1-Segment)). METHODS During a 5-year period (2011-2016), 236 patients (mean age, 69 ± 14 years; 46% women; median NIHSS score 13 ± 5) who were treated at the Department of Neurology and Neuroradiology at the University of Lübeck, undergoing ET with or without IV rt-PA were included and analyzed. RESULTS A total of 144 patients (61%) underwent ET + IV rt-PA, and 92 patients (39%) underwent ET only. The ET with IV rt-PA is associated with a higher rate of favorable functional outcomes (mRS≤2) at discharge from hospital (51.4% vs. 23.1%, p < .001) and lower rate of in-hospital mortality (9% vs. 19.6%, p = .019) and symptomatic intracerebral hemorrhage [sICH] (2.1% vs. 8.7%; p = .019) compared to ET, whereas the modified treatment in cerebral infarction score (mTICI) did not differ between the groups.In the adjusted logistic regression analysis, the ET + IV rt-PA was associated with an increased probability of favorable functional outcome (OR, 4.3; 95% confidence interval [CI], 2.2-8.5; p < .001). For the in-hospital mortality (OR, 0.74; 95% CI, 0.29-1.9; p = .76) and sICH (OR, 0.3; 95% CI, 0.07-1.2; p = .09), no differences were found. CONCLUSION Recanalization results after endovascular treatment are not relevantly improved in patients receiving rt-PA. However, an additional therapy with IV rt-PA has a positive impact on functional outcome.
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Affiliation(s)
| | - Toralf Brüning
- Department of Neurology University of Lübeck Lübeck Germany.,Department of Neurology Bundeswehrkrankenhaus Hamburg Germany
| | - Carina Gottwald
- Department of Neurology University of Lübeck Lübeck Germany.,Department of Neurology Bundeswehrkrankenhaus Hamburg Germany
| | - Florian Roessler
- Department of Neurology University of Lübeck Lübeck Germany.,Department of Neurology University of Giessen Giessen Germany
| | - Georg Royl
- Department of Neurology University of Lübeck Lübeck Germany
| | - Thomas Eckey
- Department of Neuroradiology University of Lübeck Lübeck Germany
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