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Mierzwa AT, Prologo-Richardson P, Kasab SA, Nelson A, Gutierrez SO, Vivanco-Suarez J, Farooqui M, Jadhav AP, Desai S, Toth G, Alrohimi A, Nguyen TN, Klein P, Abdalkader M, Salahuddin H, Wilseck Z, Pandey A, Koduri S, Vora N, Aladamat N, Gharaibeh K, Afreen E, Zaidi S, Jumaa M. Control-matched octo/nonagenarian outcomes in acute basilar artery occlusions treated with mechanical thrombectomy-analysis of the PC-SEARCH thrombectomy registry. Interv Neuroradiol 2024:15910199241265397. [PMID: 39043366 DOI: 10.1177/15910199241265397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024] Open
Abstract
INTRODUCTION Age is often used as a predictor in determining outcomes in large vessel occlusions treated with mechanical thrombectomy. However, limited data exist for octo/nonagenarian outcomes compared to younger individuals in acute basilar artery occlusions treated with thrombectomy. METHODS Patient data were obtained from the PC-SEARCH Thrombectomy Registry which consists of 444 acute basilar artery occlusions treated with mechanical thrombectomy. Individuals were dichotomized based on age (>80 and ≤80 years old). Primary outcome was defined as modified Rankin Scale of 0-3 at 90 days. Logistic and multivariate regression, as well as control-matched analysis, were performed. RESULTS There were 373 and 71 patients in the younger and older cohorts, respectively. Gender, ethnicity, smoking status, atrial fibrillation, and coronary artery disease were noted to be significantly different between cohorts. At 90 days, 178 (47.7%) and 23 (32.4%) patients achieved primary outcome at 90 days (p = 0.02), however, after controlling for potentially confounding factors this association lost significance (OR 0.50 95% CI 0.24-1.05; p = 0.07). There were 84 patients included in the control matched analysis and demonstrated no significant differences on multivariate analysis between cohorts (OR 0.68 95% CI 0.25-1.84; p = 0.45). INTERPRETATION Octa/nonagenarians presenting with an acute basilar artery occlusion treated with mechanical thrombectomy can achieve acceptable rates of favorable functional outcomes compared to younger individuals with similar baseline demographic and stroke characteristics.
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Affiliation(s)
- Adam T Mierzwa
- Department of Neurology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
- Department of Neurology, Promedica Stroke Network, Toledo, OH, USA
| | - Paige Prologo-Richardson
- Department of Neurology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Sami Al Kasab
- Department of Neurology and Neurosurgery, Medical University of South Carolina, Charleston, SC, USA
| | - Ashley Nelson
- Department of Neurology and Neurosurgery, Medical University of South Carolina, Charleston, SC, USA
| | | | - Juan Vivanco-Suarez
- Department of Cerebrovascular and Neurointerventional Lab, University of Iowa, Iowa City, IA, USA
| | - Mudassir Farooqui
- Department of Cerebrovascular and Neurointerventional Lab, University of Iowa, Iowa City, IA, USA
| | - Ashutosh P Jadhav
- Department of Neurology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Shashvat Desai
- Department of Neurology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Gabor Toth
- Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Anas Alrohimi
- Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Thanh N Nguyen
- Department of Neurology, Boston University Chobanian & Avedisian School of Medicine, MA, USA
| | - Piers Klein
- Department of Neurology, Boston University Chobanian & Avedisian School of Medicine, MA, USA
| | - Mohamad Abdalkader
- Department of Neurology, Boston University Chobanian & Avedisian School of Medicine, MA, USA
| | - Hisham Salahuddin
- Department of Neurology, Antelope Valley Hospital, Los Angeles, CA, USA
| | - Zachary Wilseck
- Department of Neurosurgery, University of Michigan, Ann Arbor, MI, USA
| | - Aditya Pandey
- Department of Neurosurgery, University of Michigan, Ann Arbor, MI, USA
| | - Sravanthi Koduri
- Department of Neurosurgery, University of Michigan, Ann Arbor, MI, USA
| | - Nirav Vora
- Department of Neurology, Ohio Health Riverside Methodist Hospital, Columbus, OH, USA
| | - Nameer Aladamat
- Department of Neurology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Khaled Gharaibeh
- Department of Neurology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Ehad Afreen
- Department of Neurology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
- Department of Neurology, Promedica Stroke Network, Toledo, OH, USA
| | - Syed Zaidi
- Department of Neurology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
- Department of Neurology, Promedica Stroke Network, Toledo, OH, USA
| | - Mouhammad Jumaa
- Department of Neurology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
- Department of Neurology, Promedica Stroke Network, Toledo, OH, USA
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Güney R, Potreck A, Neuberger U, Schmitt N, Purrucker J, Möhlenbruch MA, Bendszus M, Seker F. Association of Carotid Artery Disease with Collateralization and Infarct Growth in Patients with Acute Middle Cerebral Artery Occlusion. AJNR Am J Neuroradiol 2024; 45:574-580. [PMID: 38575322 PMCID: PMC11288550 DOI: 10.3174/ajnr.a8180] [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: 10/09/2023] [Accepted: 01/11/2024] [Indexed: 04/06/2024]
Abstract
BACKGROUND AND PURPOSE Collaterals are important in large vessel occlusions (LVO), but the role of carotid artery disease (CAD) in this context remains unclear. This study aimed to investigate the impact of CAD on intracranial collateralization and infarct growth after thrombectomy in LVO. MATERIALS AND METHODS All patients who underwent thrombectomy due to M1 segment occlusion from 01/2015 to 12/2021 were retrospectively included. Internal carotid artery stenosis according to NASCET was assessed on the affected and nonaffected sides. Collaterals were assessed according to the Tan score. Infarct growth was quantified by comparing ASPECTS on follow-up imaging with baseline ASPECTS. RESULTS In total, 709 patients were included, 118 (16.6%) of whom presented with CAD (defined as severe stenosis ≥70% or occlusion ipsilaterally), with 42 cases (5.9%) being contralateral. Good collateralization (Tan 3) was present in 56.5% of the patients with ipsilateral CAD and 69.1% of the patients with contralateral CAD. The ipsilateral stenosis grade was an independent predictor of good collateral supply (adjusted OR: 1.01; NASCET point, 95% CI: 1.00-1.01; P = .009), whereas the contralateral stenosis grade was not (P = .34). Patients with ipsilateral stenosis of ≥70% showed less infarct growth (median ASPECTS decay: 1; IQR: 0-2) compared with patients with 0%-69% stenosis (median: 2; IQR: 1-3) (P = .005). However, baseline ASPECTS was significantly lower in patients with stenosis of 70%-100% (P < .001). The results of a multivariate analysis revealed that increasing ipsilateral stenosis grade (adjusted OR: 1.0; 95% CI: 0.99-1.00; P = .004) and good collateralization (adjusted OR: 0.5; 95% CI: 0.4-0.62; P < .001) were associated with less infarct growth. CONCLUSIONS CAD of the ipsilateral ICA is an independent predictor of good collateral supply. Patients with CAD tend to have larger baseline infarct size but less infarct growth.
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Affiliation(s)
- Resul Güney
- From the Departments of Neuroradiology (R.G., A.P., U.N., N.S., M.A.M., M.B., F.S.) Heidelberg University Hospital, Heidelberg, Germany
| | - Arne Potreck
- From the Departments of Neuroradiology (R.G., A.P., U.N., N.S., M.A.M., M.B., F.S.) Heidelberg University Hospital, Heidelberg, Germany
| | - Ulf Neuberger
- From the Departments of Neuroradiology (R.G., A.P., U.N., N.S., M.A.M., M.B., F.S.) Heidelberg University Hospital, Heidelberg, Germany
| | - Niclas Schmitt
- From the Departments of Neuroradiology (R.G., A.P., U.N., N.S., M.A.M., M.B., F.S.) Heidelberg University Hospital, Heidelberg, Germany
| | - Jan Purrucker
- Departments of Neurology (J.P.), Heidelberg University Hospital, Heidelberg, Germany
| | - Markus A Möhlenbruch
- From the Departments of Neuroradiology (R.G., A.P., U.N., N.S., M.A.M., M.B., F.S.) Heidelberg University Hospital, Heidelberg, Germany
| | - Martin Bendszus
- From the Departments of Neuroradiology (R.G., A.P., U.N., N.S., M.A.M., M.B., F.S.) Heidelberg University Hospital, Heidelberg, Germany
| | - Fatih Seker
- From the Departments of Neuroradiology (R.G., A.P., U.N., N.S., M.A.M., M.B., F.S.) Heidelberg University Hospital, Heidelberg, Germany
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Lengyel B, Magyar-Stang R, Pál H, Debreczeni R, Sándor ÁD, Székely A, Gyürki D, Csippa B, István L, Kovács I, Sótonyi P, Mihály Z. Non-Invasive Tools in Perioperative Stroke Risk Assessment for Asymptomatic Carotid Artery Stenosis with a Focus on the Circle of Willis. J Clin Med 2024; 13:2487. [PMID: 38731014 PMCID: PMC11084304 DOI: 10.3390/jcm13092487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 04/17/2024] [Accepted: 04/20/2024] [Indexed: 05/13/2024] Open
Abstract
This review aims to explore advancements in perioperative ischemic stroke risk estimation for asymptomatic patients with significant carotid artery stenosis, focusing on Circle of Willis (CoW) morphology based on the CTA or MR diagnostic imaging in the current preoperative diagnostic algorithm. Functional transcranial Doppler (fTCD), near-infrared spectroscopy (NIRS), and optical coherence tomography angiography (OCTA) are discussed in the context of evaluating cerebrovascular reserve capacity and collateral vascular systems, particularly the CoW. These non-invasive diagnostic tools provide additional valuable insights into the cerebral perfusion status. They support biomedical modeling as the gold standard for the prediction of the potential impact of carotid artery stenosis on the hemodynamic changes of cerebral perfusion. Intraoperative risk assessment strategies, including selective shunting, are explored with a focus on CoW variations and their implications for perioperative ischemic stroke and cognitive function decline. By synthesizing these insights, this review underscores the potential of non-invasive diagnostic methods to support clinical decision making and improve asymptomatic patient outcomes by reducing the risk of perioperative ischemic neurological events and preventing further cognitive decline.
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Affiliation(s)
- Balázs Lengyel
- Department of Vascular and Endovascular Surgery, Heart and Vascular Center, Semmelweis University, 1122 Budapest, Hungary; (B.L.); (P.S.J.)
| | - Rita Magyar-Stang
- Department of Neurology, Semmelweis University, 1085 Budapest, Hungary; (R.M.-S.); (H.P.); (R.D.)
- Szentágothai Doctoral School of Neurosciences, Semmelweis University, 1085 Budapest, Hungary
| | - Hanga Pál
- Department of Neurology, Semmelweis University, 1085 Budapest, Hungary; (R.M.-S.); (H.P.); (R.D.)
- Szentágothai Doctoral School of Neurosciences, Semmelweis University, 1085 Budapest, Hungary
| | - Róbert Debreczeni
- Department of Neurology, Semmelweis University, 1085 Budapest, Hungary; (R.M.-S.); (H.P.); (R.D.)
- Szentágothai Doctoral School of Neurosciences, Semmelweis University, 1085 Budapest, Hungary
| | - Ágnes Dóra Sándor
- Department of Anesthesiology and Intensive Therapy, Semmelweis University, 1085 Budapest, Hungary; (Á.D.S.); (A.S.)
| | - Andrea Székely
- Department of Anesthesiology and Intensive Therapy, Semmelweis University, 1085 Budapest, Hungary; (Á.D.S.); (A.S.)
| | - Dániel Gyürki
- Department of Hydrodynamic Systems, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, 1085 Budapest, Hungary; (D.G.); (B.C.)
| | - Benjamin Csippa
- Department of Hydrodynamic Systems, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, 1085 Budapest, Hungary; (D.G.); (B.C.)
| | - Lilla István
- Department of Ophthalmology, Semmelweis University, 1085 Budapest, Hungary; (L.I.); (I.K.)
| | - Illés Kovács
- Department of Ophthalmology, Semmelweis University, 1085 Budapest, Hungary; (L.I.); (I.K.)
- Department of Ophthalmology, Weill Cornell Medical College, New York, NY 10065, USA
- Department of Clinical Ophthalmology, Faculty of Health Sciences, Semmelweis University, 1085 Budapest, Hungary
| | - Péter Sótonyi
- Department of Vascular and Endovascular Surgery, Heart and Vascular Center, Semmelweis University, 1122 Budapest, Hungary; (B.L.); (P.S.J.)
| | - Zsuzsanna Mihály
- Department of Vascular and Endovascular Surgery, Heart and Vascular Center, Semmelweis University, 1122 Budapest, Hungary; (B.L.); (P.S.J.)
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Wróbel D, Wrona P, Homa T, Jakobschy K, Wrona G, Sawczyńska K, Giełczyński M, Popiela T, Słowik A, Turaj W. Sex Alters the Effect of Perfusion Deficits on Functional Outcome in Patients with Acute Ischemic Stroke Undergoing Mechanical Thrombectomy. Cerebrovasc Dis 2024:1-10. [PMID: 38631293 DOI: 10.1159/000538633] [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: 02/24/2024] [Accepted: 03/25/2024] [Indexed: 04/19/2024] Open
Abstract
INTRODUCTION The discourse surrounding differences in cerebral hemodynamics and clinical outcomes among male and female patients treated with mechanical thrombectomy (MT) for acute ischemic stroke (AIS) remains unresolved. We aimed to elucidate these differences by employing computed tomography perfusion (CTP) imaging before MT and examining the influence of perfusion deficits on the 90-day functional outcome. METHODS This single-center retrospective analysis involved patients with anterior circulation AIS treated with MT at the Comprehensive Stroke Center, University Hospital, Krakow, from January 2019 to July 2023. We compared male and female patients in terms of baseline characteristics, CTP deficits, hypoperfusion intensity ratio (HIR, defined as T10max/T6max), and complications. The endpoints included the 90-day excellent functional outcome, defined as modified Rankin Score <2, and the 90-day mortality rate. RESULTS We included 794 patients, of whom 408 were female (51.4%). Female patients had a smaller early infarct volume (median [interquartile range]: 7 mL [0-24.8] vs. 10 mL [0-33], p = 0.004), smaller penumbra volume (77.5 mL [46-117] vs. 99.5 mL [59.8-140], p < 0.001), lower HIR (0.34 [0.16-0.5] vs. 0.37 [0.2-9.53], p = 0.043) and were less likely to achieve an excellent functional outcome (55.6% vs. 66.1%, p = 0.003). For every 10 mL increase in early infarct volume, the odds for achieving an excellent outcome were lower in females (odds ratio [OR]: 0.82 [95% confidence interval: 0.73-0.92]) compared to males (OR: 0.96 [0.88-1.04]), whereas the risk of death was higher for females (OR: 1.25 [1.13-1.39] than for males (OR: 1.05 [0.98-1.14]). DISCUSSION Despite more favorable cerebral hemodynamic profile, female AIS patients have worse outcomes than their male counterparts. This effect seems to be independently mediated by the more pronounced impact of early infarct volume on the prognosis in female patients. These findings underscore the possible explanatory power arising from sex-specific interpretation of early infarct volume in clinical practice.
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Affiliation(s)
- Dominik Wróbel
- Jagiellonian University Medical College, Student Scientific Group in Cerebrovascular Diseases, Krakow, Poland
| | - Paweł Wrona
- Department of Neurology, Jagiellonian University Medical College, Krakow, Poland
- Department of Neurology, University Hospital, Krakow, Poland
| | - Tomasz Homa
- Department of Neurology, University Hospital, Krakow, Poland
| | - Klaudia Jakobschy
- Jagiellonian University Medical College, Student Scientific Group in Cerebrovascular Diseases, Krakow, Poland
| | | | - Katarzyna Sawczyńska
- Department of Neurology, Jagiellonian University Medical College, Krakow, Poland
- Department of Neurology, University Hospital, Krakow, Poland
| | - Mateusz Giełczyński
- Jagiellonian University Medical College, Student Scientific Group in Cerebrovascular Diseases, Krakow, Poland
| | - Tadeusz Popiela
- Department of Radiology, University Hospital, Krakow, Poland
- Department of Radiology, Jagiellonian University Medical College, Krakow, Poland
| | - Agnieszka Słowik
- Department of Neurology, Jagiellonian University Medical College, Krakow, Poland
- Department of Neurology, University Hospital, Krakow, Poland
| | - Wojciech Turaj
- Department of Neurology, Jagiellonian University Medical College, Krakow, Poland
- Department of Neurology, University Hospital, Krakow, Poland
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Scavasine VC, Stoliar GA, Teixeira BCDA, Zétola VDHF, Lange MC. Automated evaluation of collateral circulation for outcome prediction in acute ischemic stroke. J Stroke Cerebrovasc Dis 2024; 33:107584. [PMID: 38246577 DOI: 10.1016/j.jstrokecerebrovasdis.2024.107584] [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] [Received: 11/11/2023] [Revised: 01/10/2024] [Accepted: 01/15/2024] [Indexed: 01/23/2024] Open
Abstract
INTRODUCTION The assessment of collateral circulation in acute ischemic stroke management is essential. Modern tools, such as Brainomix's e-CTA, powered by artificial intelligence, provide detailed insights into collateral assessment. This retrospective study aims to identify factors contributing to favorable collateral status and compare outcomes between patients with good collaterals (grade 3) and fair collaterals (grade 0-2). METHOD This retrospective study included 97 patients admitted to the Stroke Unit at the Hospital de Clínicas of the Federal University of Paraná, Brazil, from September 2021 to January 2023. Comparative analyses involved demographic factors, cardiovascular risk factors, and the combined outcome of mortality and moderate to severe disability at discharge, 30-day, and 90-day follow-ups. RESULTS Among the 97 cases, 58.8 % showed 'good collaterals' with a grade 3 status. Variables affecting collateral status included age (p = 0.042), neutrophil-lymphocyte ratio (p = 0.005), and initial NIHSS scores (p<0.001). The presence of good collaterals according to e-CTA reduced the odds of death and moderate-severe disability at discharge (p = 0.003; OR 0.27) and at 30 days (p = 0.015; OR 0.33), although this effect diminished at the 90-day mark after multivariate analysis. DISCUSSION Automated collateral assessment through e-CTA is a valuable tool in acute ischemic stroke evaluation. Good e-CTA collateral score serve as a promising imaging biomarker, guiding informed clinical decisions during Stroke Unit hospitalizations. This study highlights the relationship between collaterals and stroke outcomes and underscores the potential for AI-driven tools to enhance stroke care management.
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Affiliation(s)
| | - Gabriel Abrahao Stoliar
- Neurology Division, Hospital de Clínicas, Universidade Federal do Paraná, Curitiba, PR, Brazil
| | | | | | - Marcos Christiano Lange
- Neurology Division, Hospital de Clínicas, Universidade Federal do Paraná, Curitiba, PR, Brazil
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Avery EW, Abou-Karam A, Abi-Fadel S, Behland J, Mak A, Haider SP, Zeevi T, Sanelli PC, Filippi CG, Malhotra A, Matouk CC, Falcone GJ, Petersen N, Sansing LH, Sheth KN, Payabvash S. Radiomics-Based Prediction of Collateral Status from CT Angiography of Patients Following a Large Vessel Occlusion Stroke. Diagnostics (Basel) 2024; 14:485. [PMID: 38472957 PMCID: PMC10930945 DOI: 10.3390/diagnostics14050485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 02/01/2024] [Accepted: 02/15/2024] [Indexed: 03/14/2024] Open
Abstract
BACKGROUND A major driver of individual variation in long-term outcomes following a large vessel occlusion (LVO) stroke is the degree of collateral arterial circulation. We aimed to develop and evaluate machine-learning models that quantify LVO collateral status using admission computed tomography angiography (CTA) radiomics. METHODS We extracted 1116 radiomic features from the anterior circulation territories from admission CTAs of 600 patients experiencing an acute LVO stroke. We trained and validated multiple machine-learning models for the prediction of collateral status based on consensus from two neuroradiologists as ground truth. Models were first trained to predict (1) good vs. intermediate or poor, or (2) good vs. intermediate or poor collateral status. Then, model predictions were combined to determine a three-tier collateral score (good, intermediate, or poor). We used the receiver operating characteristics area under the curve (AUC) to evaluate prediction accuracy. RESULTS We included 499 patients in training and 101 in an independent test cohort. The best-performing models achieved an averaged cross-validation AUC of 0.80 ± 0.05 for poor vs. intermediate/good collateral and 0.69 ± 0.05 for good vs. intermediate/poor, and AUC = 0.77 (0.67-0.87) and AUC = 0.78 (0.70-0.90) in the independent test cohort, respectively. The collateral scores predicted by the radiomics model were correlated with (rho = 0.45, p = 0.002) and were independent predictors of 3-month clinical outcome (p = 0.018) in the independent test cohort. CONCLUSIONS Automated tools for the assessment of collateral status from admission CTA-such as the radiomics models described here-can generate clinically relevant and reproducible collateral scores to facilitate a timely treatment triage in patients experiencing an acute LVO stroke.
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Affiliation(s)
- Emily W. Avery
- Section of Neuroradiology, Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT 06520, USA; (E.W.A.); (A.M.)
| | - Anthony Abou-Karam
- Section of Neuroradiology, Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT 06520, USA; (E.W.A.); (A.M.)
| | - Sandra Abi-Fadel
- Section of Neuroradiology, Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT 06520, USA; (E.W.A.); (A.M.)
| | - Jonas Behland
- Section of Neuroradiology, Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT 06520, USA; (E.W.A.); (A.M.)
- CLAIM—Charité Lab for Artificial Intelligence in Medicine, Charité—Universitätsmedizin Berlin, 10117 Berlin, Germany
| | - Adrian Mak
- Section of Neuroradiology, Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT 06520, USA; (E.W.A.); (A.M.)
- CLAIM—Charité Lab for Artificial Intelligence in Medicine, Charité—Universitätsmedizin Berlin, 10117 Berlin, Germany
| | - Stefan P. Haider
- Section of Neuroradiology, Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT 06520, USA; (E.W.A.); (A.M.)
- Department of Otorhinolaryngology, University Hospital of Ludwig Maximilians Universität München, 81377 Munich, Germany
| | - Tal Zeevi
- Section of Neuroradiology, Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT 06520, USA; (E.W.A.); (A.M.)
| | - Pina C. Sanelli
- Section of Neuroradiology, Department of Radiology, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell Health, Manhasset, NY 11030, USA
| | - Christopher G. Filippi
- Section of Neuroradiology, Department of Radiology, Tufts School of Medicine, Boston, MA 02111, USA
| | - Ajay Malhotra
- Section of Neuroradiology, Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT 06520, USA; (E.W.A.); (A.M.)
| | - Charles C. Matouk
- Division of Neurovascular Surgery, Department of Neurosurgery, Yale School of Medicine, New Haven, CT 06520, USA
| | - Guido J. Falcone
- Division of Neurocritical Care and Emergency Neurology, Department of Neurology, Yale School of Medicine, New Haven, CT 06520, USA
| | - Nils Petersen
- Division of Neurocritical Care and Emergency Neurology, Department of Neurology, Yale School of Medicine, New Haven, CT 06520, USA
| | - Lauren H. Sansing
- Division of Stroke and Vascular Neurology, Department of Neurology, Yale School of Medicine, New Haven, CT 06520, USA
| | - Kevin N. Sheth
- Division of Neurocritical Care and Emergency Neurology, Department of Neurology, Yale School of Medicine, New Haven, CT 06520, USA
| | - Seyedmehdi Payabvash
- Section of Neuroradiology, Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT 06520, USA; (E.W.A.); (A.M.)
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Mitsuhashi T, Teranishi K, Tokugawa J, Mitsuhashi T, Hishii M, Oishi H. Prognostic Determinants of Anterior Large Vessel Occlusion in Acute Stroke in Elderly Patients. Geriatrics (Basel) 2024; 9:13. [PMID: 38247988 PMCID: PMC10801592 DOI: 10.3390/geriatrics9010013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 01/11/2024] [Accepted: 01/12/2024] [Indexed: 01/23/2024] Open
Abstract
This study investigated prognostic factors in elderly patients (80 years and older) undergoing mechanical thrombectomy (MT) for anterior circulation large vessel occlusion (LVO) in acute stroke treatment. Of 59 cases, 47.5% achieved a favorable outcome (mRS ≤ 3) at three months, with a mortality rate of 20.3%. Factors associated with better outcomes included younger age, lower admission National Institute of Health Stroke Scale (NIHSS) scores, lower N-terminal pro-brain natriuretic peptide (NT-proBNP) and D-dimer levels, the presence of the first pass effect (FPE), and successful recanalization. However, logistic regression showed that only lower admission NIHSS scores were significantly correlated with favorable outcomes. In addition, this study suggests that lower admission NT-proBNP and D-dimer levels could potentially serve as prognostic indicators for elderly LVO patients undergoing MT.
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Affiliation(s)
- Takashi Mitsuhashi
- Department of Neurosurgery, Juntendo University Nerima Hospital, Tokyo 177-8521, Japan
| | - Kohsuke Teranishi
- Department of Neurosurgery and Neuroendovascular Therapy, Juntendo University School of Medicine, Tokyo 113-8421, Japan
| | - Joji Tokugawa
- Department of Neurosurgery, Juntendo University Nerima Hospital, Tokyo 177-8521, Japan
| | - Takumi Mitsuhashi
- Department of Neurosurgery, Juntendo University Nerima Hospital, Tokyo 177-8521, Japan
| | - Makoto Hishii
- Department of Neurosurgery, Juntendo University Nerima Hospital, Tokyo 177-8521, Japan
| | - Hidenori Oishi
- Department of Neurosurgery and Neuroendovascular Therapy, Juntendo University School of Medicine, Tokyo 113-8421, Japan
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Consoli A, Pileggi M, Hasan AH, Rahman MH, Venier A, Sgreccia A, Pizzuto S, Coskun O, Di Maria F, Scarcia L, Lapergue B, Rodesch G, Bracard S, Chen B. Unfavorable clinical outcomes in patients with good collateral scores following endovascular treatment for acute ischemic stroke of the anterior circulation: The UNCLOSE study. Interv Neuroradiol 2023:15910199231212519. [PMID: 37936414 DOI: 10.1177/15910199231212519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023] Open
Abstract
BACKGROUND Patients with acute ischemic stroke secondary to large vessel occlusions and good collaterals are frequently associated with favorable outcomes after mechanical thrombectomy, although poor outcomes are observed also in this subgroup. We aimed to investigate the factors associated with unfavorable outcomes (modified Rankin Scale3-6) in this specific subgroup of patients. METHODS In total, 219 patients (117 females) with anterior circulation stroke and good collaterals (American Society for Interventional and Therapeutic Neuroradiology/Society of Interventional Radiology grades 3-4), treated by mechanical thrombectomy between 2016 and 2021 at our institution were included in this study. Clinical files and neuroimaging were retrospectively reviewed. Univariate and multivariate analyses were performed to identify the predictors of unfavorable outcomes in the overall population (primary endpoint). Secondary endpoints focused on the analysis of the predictors of unfavorable outcomes in the subgroup of successfully recanalized patients, mortality, and symptomatic intracerebral hemorrhages in the overall population. RESULTS Poor outcome was observed in 47% of the patients despite the presence of good collaterals. Older age (p < 0.001), higher baseline National Institute of Health stroke scale (p < 0.001), no intravenous thrombolysis administration (p = 0.004), > 3 passes (p = 0.01), and secondary transfers (p < 0.001) were associated with the primary endpoint. The multivariate analysis showed a predictive effect of modified treatment in cerebral infarction 2b-3 and of first pass effect on symptomatic intracerebral hemorrhage. CONCLUSIONS Despite good collaterals, defined through the American Society for Interventional and Therapeutic Neuroradiology/Society of Interventional Radiology scale, poor outcomes occurred in almost half of the patients. Patients with good collaterals not receiving intravenous thrombolysis were significantly associated with unfavorable outcomes, whereas first pass effect was not significantly correlated with clinical outcome in this specific cohort of patients. Different methods to assess collaterals should also be investigated.
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Affiliation(s)
- Arturo Consoli
- Interventional and Diagnostic Neuroradiology Department, Foch Hospital, Suresnes, France
- CIC-IT IADI Laboratory, Université de Lorraine, CHRU de Nancy, Nancy, France
| | - Marco Pileggi
- Interventional and Diagnostic Neuroradiology Department, Foch Hospital, Suresnes, France
- Diagnostic and Interventional Neuroradiology, Neurocenter of Southern Switzerland, EOC, Lugano, Switzerland
| | - Atm Hasibul Hasan
- Interventional and Diagnostic Neuroradiology Department, Foch Hospital, Suresnes, France
- National Institute of Neurosciences and Hospital, Dhaka, Bangladesh
| | - Mohammad H Rahman
- Interventional and Diagnostic Neuroradiology Department, Foch Hospital, Suresnes, France
- National Institute of Neurosciences and Hospital, Dhaka, Bangladesh
| | - Alice Venier
- Interventional and Diagnostic Neuroradiology Department, Foch Hospital, Suresnes, France
| | - Alessandro Sgreccia
- Interventional and Diagnostic Neuroradiology Department, Foch Hospital, Suresnes, France
| | - Silvia Pizzuto
- Interventional and Diagnostic Neuroradiology Department, Foch Hospital, Suresnes, France
| | - Oguzhan Coskun
- Interventional and Diagnostic Neuroradiology Department, Foch Hospital, Suresnes, France
| | - Federico Di Maria
- Interventional and Diagnostic Neuroradiology Department, Foch Hospital, Suresnes, France
| | - Luca Scarcia
- Interventional and Diagnostic Neuroradiology Department, Foch Hospital, Suresnes, France
- Institute of Radiology, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Bertrand Lapergue
- Department of Neurology and Stroke Unit, Foch Hospital, Suresnes, France
| | - Georges Rodesch
- Interventional and Diagnostic Neuroradiology Department, Foch Hospital, Suresnes, France
| | - Serge Bracard
- CIC-IT IADI Laboratory, Université de Lorraine, CHRU de Nancy, Nancy, France
- Interventional and Diagnostic Neuroradiology Department, CHRU de Nancy, Nancy, France
| | - Bailiang Chen
- CIC-IT IADI Laboratory, Université de Lorraine, CHRU de Nancy, Nancy, France
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9
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Heitkamp C, Winkelmeier L, Heit JJ, Flottmann F, Thaler C, Kniep H, Broocks G, Meyer L, Geest V, Albers GW, Lansberg MG, Fiehler J, Faizy TD. The negative effect of aging on cerebral venous outflow in acute ischemic stroke. J Cereb Blood Flow Metab 2023; 43:1648-1655. [PMID: 37254736 PMCID: PMC10581231 DOI: 10.1177/0271678x231179558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 04/21/2023] [Accepted: 04/24/2023] [Indexed: 06/01/2023]
Abstract
Cortical venous outflow (VO) represents an imaging biomarker of increasing interest in patients with acute ischemic stroke due to large vessel occlusion (AIS-LVO). We conducted a retrospective multicenter cohort study to investigate the effect of aging on VO. A total of 784 patients met the inclusion criteria. Cortical Vein Opacification Score (COVES) was used to assess VO profiles on admission CT angiography. Cerebral microperfusion was determined using the hypoperfusion intensity ratio (HIR) derived from perfusion imaging. Arterial collaterals were assessed using the Tan scale. Multivariable regression analysis was performed to identify independent determinants of VO, HIR and arterial collaterals. In multivariable regression, higher age correlated with worse VO (adjusted odds ratio [95% CI]; 0.83 [0.73-0.95]; P = 0.006) and poorer HIR (β coefficient [95% CI], 0.014 [0.005-0.024]; P = 0.002). The negative effect of higher age on VO was mediated by the extent of HIR (17.3%). We conclude that higher age was associated with worse VO in AIS-LVO, partially explained by the extent of HIR reflecting cerebral microperfusion. Our study underlines the need to assess collateral blood flow beyond the arterial system and provides valuable insights into deteriorated cerebral blood supply in elderly AIS-LVO patients.
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Affiliation(s)
- Christian Heitkamp
- Department of Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Laurens Winkelmeier
- Department of Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jeremy J Heit
- Department of Radiology, Stanford University School of Medicine, Stanford, CA, USA
| | - Fabian Flottmann
- Department of Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christian Thaler
- Department of Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Helge Kniep
- Department of Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Gabriel Broocks
- Department of Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Lukas Meyer
- Department of Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Vincent Geest
- Department of Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Gregory W Albers
- Department of Neurology, Stanford University School of Medicine, Stanford, CA, USA
| | - Maarten G Lansberg
- Department of Neurology, Stanford University School of Medicine, Stanford, CA, USA
| | - Jens Fiehler
- Department of Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tobias D Faizy
- Department of Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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10
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Pi C, Wang J, Zhao D, Yu S. The determinants of collateral circulation status in patients with chronic cerebral arterial circle occlusion: A STROBE Study. Medicine (Baltimore) 2022; 101:e29703. [PMID: 35777030 PMCID: PMC9239625 DOI: 10.1097/md.0000000000029703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The condition of collateral pathways is an important predictor of stroke prognoses; however the major determinants of collaterals are still unknown. The purpose of this study is to identify potentially determinants for collateral circulation status in patients with chronic occlusion of cerebral arterial circle. All patients with chronic occlusion of either unilateral internal carotid artery or middle cerebral artery M1 or M2 segment, diagnosed by digital subtraction angiography at the neurology department of the First Medical Centre of Chinese PLA General Hospital from January 2015 to December 2017, were retrospectively collected in our sample. After screening according to inclusion and exclusion criteria, the patients' relevant clinical data were collected and analyzed. Collateral circulations were assessed by 2 independent raters using the American society of interventional and therapeutic neuroradiology/society of interventional radiology flow-grading system. Baseline characteristics (n = 163): our sample consists of 116 (71.2%) male and 47 (28.8%) female patients with an average age of 57.5 ± 11.9 years. Cerebral collateral flow was poor in 59 (36.2%) patients. Our univariate analyses showed that poor collateral circulation was associated with lower high-density lipoproteins cholesterol (HDL), elevated homocysteine levels, aging and hyperlipidemia. A multivariate analysis identified HDL, homocysteine levels and ageing as major predictors for collateral circulation status. In the subgroup analysis, the HDL contributed to collateral angiogenesis internal carotid artery occlusion group. In the middle cerebral artery occlusion group, the homocysteine and ageing were related to the poor collateral status. Low HDL, high levels of homocysteine and ageing are identified as possible risk factors for a poor collateral vessel blood flow in patients with chronic anterior circulation occlusion.
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Affiliation(s)
- Chenghui Pi
- Nankai University, College of Medicine, Tianjin, China
- Department of Neurology, the First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Jun Wang
- Department of Neurology, the First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Dengfa Zhao
- Department of Neurology, the First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Shengyuan Yu
- Nankai University, College of Medicine, Tianjin, China
- Department of Neurology, the First Medical Centre, Chinese PLA General Hospital, Beijing, China
- *Correspondence: Shengyuan Yu, College of Medicine, Nankai University, Tianjin, China )
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11
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Hu J, Liu X, Liu S, Sang H, Huang J, Luo W, Wang J, Chen Z, Yang S, He W, Zhang B, Yu Z, Wang S, Wen H, Zhu X, Sun R, Yang J, Li L, Song J, Tian Y, Qiu Z, Li F, Zi W, Tian Y, Yang D. Outcomes of Endovascular Therapy in Young Patients with Acute Basilar Artery Occlusion: A Substudy of BASILAR Registry Study. Neurol Ther 2022; 11:1519-1532. [PMID: 35705888 DOI: 10.1007/s40120-022-00372-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 05/27/2022] [Indexed: 02/05/2023] Open
Abstract
INTRODUCTION This study aimed to investigate clinical outcomes in young patients with basilar artery occlusion (BAO) receiving endovascular therapy (EVT). METHODS Consecutive patients with BAO within 24 h who underwent EVT from the BASILAR Registry study were enrolled. We compared clinical outcomes of young patients (aged 18-55 years) with older patients (aged > 55 years) with stroke due to BAO at 90 days and 1 year after EVT. The primary and secondary outcomes were improvement in modified Rankin scale scores (mRS) at 90 days and either favorable (mRS 0-3) or mortality at 90 days, respectively. RESULTS A total of 646 patients were included, of which 152 (23.53%) were aged 18-55 years. Dyslipidemia (42.11% vs. 30.36%, p = 0.007) and good collateral circulation (60.52% vs. 46.35%, p = 0.002) were more frequent in young patients than older. Stroke etiologies in young patients included large artery atherosclerosis (67.11%), cardioembolism (15.13%), and vessel dissection (5.26%). Young patients were associated with better prognosis (mRS: adjusted odds ratio (aOR) 1.73; 95% confidence interval [CI] 1.21-2.48; mRS 0-3: aOR 1.60; 95% CI 1.01-2.54; mortality: aOR 0.60; 95% CI 0.38-0.93) at 90 days. Baseline National Institutes of Health Stroke Scale (NIHSS) score, posterior circulation Alberta Stroke Program Early Computed Tomography Score (pc-ASPECTS), and sex were independent predictors of clinical outcomes of young patients at 90 days after EVT. CONCLUSION Young patients with BAO had better clinical outcomes after EVT than old patients. Predictors of clinical outcomes in young patients undergoing EVT included baseline NIHSS score, pc-ASPECTS, and sex. TRIAL REGISTRATION Clinical Trial Registration-URL: ChiCTR180001475 ( www.chictr.org.cn ).
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Affiliation(s)
- Jinrong Hu
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, 400037, China
| | - Xing Liu
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, 400037, China
| | - Shuai Liu
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, 400037, China
| | - Hongfei Sang
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, 400037, China
| | - Jiacheng Huang
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, 400037, China
| | - Weidong Luo
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, 400037, China
| | - Jie Wang
- Department of Neurology, People's Hospital of Chongqing Banan District, Chongqing, 400037, China
| | - Zhuo Chen
- Department of Neurology, Mianzhu Hospital, West China Hospital of Sichuan University, Mianzhu, 618200, China
| | - Shuang Yang
- Department of Neurology, People's Hospital of Zunyi City Bo Zhou District, Zunyi, 563000, China
| | - Wencheng He
- Department of Neurology, GuiPing People's Hospital, GuiPing, 537200, China
| | - Bo Zhang
- Department of Neurology, Suining First People's Hospital, Suining, 629000, China
| | - Zhou Yu
- Department of Neurology, The First People's Hospital of Liangshan Yi Autonomous Prefecture, Xichang, 615000, China
| | - Shan Wang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical and Pharmaceutical College, Chongqing, 400000, China
| | - Hongbin Wen
- Department of Neurology, Xiangyang Central Hospital, Hubei Arts and Science University, Xiangyang, 441100, China
| | - Xiurong Zhu
- Department of Neurology, Chongzhou People's Hospital, Chongzhou, 611200, China
| | - Ruidi Sun
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, 400037, China
| | - Jie Yang
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, 400037, China
| | - Linyu Li
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, 400037, China
| | - Jiaxing Song
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, 400037, China
| | - Yan Tian
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, 400037, China
| | - Zhongming Qiu
- Department of Neurology, The 903th Hospital of The People's Liberation Army, Hangzhou, 310007, China
| | - Fengli Li
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, 400037, China.,Department of Neurology, Guangyang Bay Laboratory, Chongqing Institute for Brain and Intelligence, Chongqing, 400064, China
| | - Wenjie Zi
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, 400037, China.,Department of Neurology, Guangyang Bay Laboratory, Chongqing Institute for Brain and Intelligence, Chongqing, 400064, China
| | - Yaoyu Tian
- Department of Neurology, Qian Xi Nan People's Hospital, No. B6 Road, Jukang Road, Jushan Office, Xingyi City, 562400, Buyi and Miao Autonomous Prefecture, Qianxinanzhou, China.
| | - De Yang
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, 400037, China. .,Department of Neurology, Chongqing University Fuling Hospital, No. 2 Gaozhutang Road, Fuling District, Fuling, 408000, China.
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12
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Elwan ME, Mansour OY, Lashin ME, Melake MS. Factors affecting mechanical thrombectomy outcome in acute ischemic stroke patients: an Egyptian sample. THE EGYPTIAN JOURNAL OF NEUROLOGY, PSYCHIATRY AND NEUROSURGERY 2022. [DOI: 10.1186/s41983-022-00491-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Stroke constitutes a major health problem worldwide, nowadays endovascular treatment is considered to be a standard of care in acute ischemic stroke patients with large vessel occlusion, accurate prediction of outcome of thrombectomy is essential for health care providers, patients and families. We studied different clinical and radiological variables that could predict functional outcome in stroke patients after thrombectomy. Thirty-four consecutive ischemic stroke patients were included, received intravenous tissue plasminogen activator (iv-tpa), then mechanical thrombectomy was done. Patients were clinically assessed at admission with National Institute of Health Stroke Scale (NIHSS) then evaluated by the Alberta Stroke Program early computerized tomography (CT) score (ASPECTS), clot burden scale (CBS) and collateral score (CS) in multiphase computerized tomography angiography (CTA) then good and poor outcomes at 3 months were defined by Modified Rankin Scale (MRS) of 0–2 and 3–6 points, respectively.
Results
Factors associated with good outcome (MRS 0–2) were lower admission NIHSS score (p < 0.037), small infarct core aspects ≥ 6 (p < 0.001), low clot burden (CBS 7–10) (p = 0.046) good collaterals (2–3) (p = 0.038) and absence of post-procedure hemorrhage (p < 0.0005).
Conclusions
Low admission NIHSS score, absence of post-procedure hemorrhage, small infarct core, low clot burden and good collaterals are reliable factors for good clinical outcome.
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13
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Lin Y, Kang N, Kang J, Lv S, Wang J. Predictive value of time-variant color-coded multiphase CT angiography (mCTA) regarding clinical outcome of acute ischemic stroke: in comparison with conventional mCTA and CT perfusion. Acta Radiol 2022; 63:84-92. [PMID: 33356350 DOI: 10.1177/0284185120981770] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Color-coded multiphase computed tomography angiography (mCTA) can provide time-variant blood flow information of collateral circulation for acute ischemic stroke (AIS). PURPOSE To compare the predictive values of color-coded mCTA, conventional mCTA, and CT perfusion (CTP) for the clinical outcomes of patients with AIS. MATERIAL AND METHODS Consecutive patients with anterior circulation AIS were retrospectively reviewed at our center. Baseline collateral scores of color-coded mCTA and conventional mCTA were assessed by a 6-point scale. The reliabilities between junior and senior observers were assessed by weighted Kappa coefficients. Receiver operating characteristic (ROC) curves and multivariate logistic regression model were applied to evaluate the predictive capabilities of color-coded mCTA and conventional mCTA scores, and CTP parameters (hypoperfusion and infarct core volume) for a favorable outcome of AIS. RESULTS A total of 138 patients (including 70 cases of good outcomes) were included in our study. Patients with favorable prognoses were correlated with better collateral circulations on both color-coded and conventional mCTA, and smaller hypoperfusion and infarct core volume (all P < 0.05) on CTP. ROC curves revealed no significant difference between the predictive capability of color-coded and conventional mCTA (P = 0.427). The predictive value of CTP parameters tended to be inferior to that of color-coded mCTA score (all P < 0.001). Both junior and senior observers had consistently excellent performances (κ = 0.89) when analyzing color-coded mCTA maps. CONCLUSION Color-coded mCTA provides prognostic information of patients with AIS equivalent to or better than that of conventional mCTA and CTP. Junior radiologists can reach high diagnostic accuracy when interpreting color-coded mCTA images.
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Affiliation(s)
- Yu Lin
- Department of Radiology, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian, PR China
| | - Nannan Kang
- Department of Radiology, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian, PR China
| | - Jianghe Kang
- Department of Radiology, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian, PR China
| | - Shaomao Lv
- Department of Radiology, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian, PR China
| | - Jinan Wang
- Department of Radiology, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian, PR China
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14
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Yakhkeshi R, Roshani F, Akhoundzadeh K, Shafia S. Effect of treadmill exercise on serum corticosterone, serum and hippocampal BDNF, hippocampal apoptosis and anxiety behavior in an ovariectomized rat model of post-traumatic stress disorder (PTSD). Physiol Behav 2022; 243:113629. [PMID: 34743976 DOI: 10.1016/j.physbeh.2021.113629] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 10/07/2021] [Accepted: 10/18/2021] [Indexed: 12/12/2022]
Abstract
There is a sex difference in vulnerability to PTSD and in response to therapeutic interventions. Since relation between gonadal hormones and PTSD has been revealed, this study aimed to understand the severity of PTSD-induced impairments after ovarian hormone deficiency and the influence of exercise on PTSD accompanied by ovarian hormone deficiency. Female adult Wistar rats were subjected to ovariectomy, PTSD, or combination ovariectomy plus PTSD. Twenty days after ovariectomy, PTSD was induced by single prolonged stress (SPS) model. The exercise started 14 days after SPS and continued for 4 weeks. Thirty minutes moderate treadmill exercise was planned for 5 days per week. On day 65, after assessing rats using the elevated plus-maze (EPM) test, corticosterone, BDNF, and apoptotic markers were tested. p < 0.05 was considered as significant level. The results showed that ovariectomy worsened the effect of SPS on hippocampal BDNF and led to greater increase in serum corticosterone and hippocampal caspase 3 and BAX in SPS rats. Also, ovariectomy exacerbated anxiety-like behavior in SPS rats. Exercise improved the alterations of hippocampal BDNF, corticosterone, caspase 3, and BAX in SPS ovariectomized rats. However, exercise had no statistically significant effect on anxiety-like behavior in this group. According to the results, exercise is effective to attenuate SPS-induced impairments in molecular and cellular responses even when the condition becomes more complicated due to ovarian hormone deficiency. However, exercise alone cannot help to improve behavior impairments in PTSD combined with an ovarian hormone deficiency. Therefore, exercise could likely be considered as a complementary intervention to strengthen other treatments.
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Affiliation(s)
- Reza Yakhkeshi
- Student Research Committee, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Fatemeh Roshani
- Student Research Committee, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Kobra Akhoundzadeh
- PhD of physiology, Faculty of Nursing and Midwifery, Qom University of Medical Sciences, Qom, Iran.
| | - Sakineh Shafia
- PhD of physiology, Department of Physiology, Molecular and Cell Biology Research Center and Immunogenetics Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.
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15
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Brouwer J, Smaal JA, Emmer BJ, de Ridder IR, van den Wijngaard IR, de Leeuw FE, Hofmeijer J, van Zwam WH, Martens JM, Roos YBWEM, Majoie CB, van Oostenbrugge RJ, Coutinho JM. Endovascular Thrombectomy in Young Patients With Stroke: A MR CLEAN Registry Study. Stroke 2021; 53:34-42. [PMID: 34872339 DOI: 10.1161/strokeaha.120.034033] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE Acute ischemic stroke due to large vessel occlusion is uncommon in young adults. We assessed stroke cause in young patients and compared their outcomes after endovascular thrombectomy with older patients. METHODS We used data (March 2014 until November 2017) of patients with an anterior circulation large vessel occlusion stroke from the MR CLEAN (Multicenter Randomized Controlled Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands) Registry, a nationwide, prospective study on endovascular thrombectomy in the Netherlands. We compared young patients (18-49 years) with older patients (≥50 years). Outcomes included modified Rankin Scale score after 90 days (both shift and dichotomized analyses), expanded Thrombolysis in Cerebral Infarction score, and symptomatic intracranial hemorrhage. Analyses were adjusted for confounding. RESULTS We included 3256 patients, 310 (10%) were 18 to 49 years old. Young patients had lower median National Institutes of Health Stroke Scale scores (14 versus 16, P<0.001) and less cardiovascular comorbidities than older patients. Stroke etiologies in young patients included carotid dissection (16%), cardio-embolism (15%), large artery atherosclerosis (10%), and embolic stroke of undetermined source (31%). Clinical outcome was better in young than older patients (acOR for modified Rankin Scale shift: 1.8 [95% CI, 1.5-2.2]; functional independence [modified Rankin Scale score 0-2] 61 versus 39% [adjusted odds ratio, 2.1 [95% CI, 1.6-2.8]); mortality 7% versus 32%, adjusted odds ratio, 0.2 [95% CI, 0.1-0.3]). Symptomatic intracranial hemorrhage occurred less frequently in young patients (3% versus 6%, adjusted odds ratio, 0.5 [95% CI, 0.2-1.00]). Successful reperfusion (expanded Thrombolysis in Cerebral Infarction Score 2b-3) did not differ between groups. Onset to reperfusion time was shorter in young patients (253 versus 255 minutes, adjusted B in minutes 12.4 [95% CI, 2.4-22.5]). CONCLUSIONS Ten percent of patients with acute ischemic stroke undergoing endovascular thrombectomy were younger than 50. Cardioembolism and carotid dissection were common underlying causes in young patients. In one-third of cases, no cause was identified, indicating the need for more research on stroke cause in young patients. Young patients had better prognosis and lower risk of symptomatic intracranial hemorrhage than older patients.
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Affiliation(s)
- Josje Brouwer
- Department of Neurology, Amsterdam UMC, University of Amsterdam, the Netherlands (J.B., Y.B.W.E.M.R., J.M.C.)
| | - Johanna A Smaal
- Department of Neurology, Maastricht University Medical Center, the Netherlands (J.A.S., I.R.d.R., R.J.v.O.)
| | - Bart J Emmer
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, the Netherlands (C.B.M., B.E.)
| | - Inger R de Ridder
- Department of Neurology, Maastricht University Medical Center, the Netherlands (J.A.S., I.R.d.R., R.J.v.O.)
| | - Ido R van den Wijngaard
- Department of Neurology and Radiology, Haaglanden Medical Center, the Hague, the Netherlands (I.R.v.d.W.)
| | - Frank-Erik de Leeuw
- Department of Neurology, Radboud University Nijmegen Medical Center, Nijmegen, the Netherlands (F.-E.d.L.)
| | - Jeannette Hofmeijer
- Department of Neurology, Rijnstate, Arnhem, the Netherlands (J.H.).,University of Twente, Faculty of Science and Technology, Enschede, the Netherlands (J.H.)
| | - Wim H van Zwam
- Department of Radiology and Nuclear Medicine, Maastricht University Medical Center, the Netherlands (W.H.v.Z.)
| | - Jasper M Martens
- Department of Radiology, Rijnstate, Arnhem, the Netherlands (J.M.M.)
| | - Yvo B W E M Roos
- Department of Neurology, Amsterdam UMC, University of Amsterdam, the Netherlands (J.B., Y.B.W.E.M.R., J.M.C.)
| | - Charles B Majoie
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, the Netherlands (C.B.M., B.E.)
| | - Robert J van Oostenbrugge
- Department of Neurology, Maastricht University Medical Center, the Netherlands (J.A.S., I.R.d.R., R.J.v.O.)
| | - Jonathan M Coutinho
- Department of Neurology, Amsterdam UMC, University of Amsterdam, the Netherlands (J.B., Y.B.W.E.M.R., J.M.C.)
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Yang B, Ding Y, Liu X, Cai Y, Yang X, Lu Q, Gu W, Liu L, Pu Y. Matrix metallopeptidase 9 and placental growth factor may correlate with collateral status based on whole-brain perfusion combined with multiphase computed tomography angiography. Neurol Res 2021; 43:838-845. [PMID: 34107864 DOI: 10.1080/01616412.2021.1939238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVE The aim of this study was to find out the relationship between serum biomarkers and cerebral collateral status in acute ischemic stroke with cerebral large artery atherosclerosis. METHODS We enrolled patients with ischemic stroke due to large artery atherosclerosis within 7 days of symptom onset, age 18-80 years, from August 2016 to December 2017. Twelve biomarkers representing different pathophysiological mechanisms were tested after admission. Whole-brain perfusion combined with multiphase computed tomography angiography was performed to assess cerebral collateral structure and function. RESULTS Fifty-two patients completed the test of candidate biomarkers and recruited in this study. The mean age was 55.0 (11.1) years, 42 (80.8%) patients were male, 20 (38.5%) had poor collateral, 36 (69.2%) patients had anterior circulation stenosis or occlusion. Compared with poor collateral group, the level of MMP-9 (135,475.00 pg/ml vs. 103,612.00 pg/ml, p = 0.040) and PGF (5.75 pg/ml vs. 3.46 pg/ml, p = 0.046) was significantly higher in good collateral group. The adjusted OR (95%CI) of MMP-9 and PGF were 5.533 (1.10-27.74, p = 0.038), 7.73 (1.41-42.39, p = 0.018), respectively. sTie-2 level had a positive correlation with proportion of Tmax 4-6 (r = 0.302, p = 0.033) and HMW-KGN had negative correlation with proportion of Tmax 6-8 (r = -0.338, p = 0.02). After adjustment, the correlation of sTie-2 level and proportion of Tmax 4-6 was statistically significant (p = 0.003), and correlation of HMW-KGN and Tmax6-8 was not statistically significant (p = 0.056). DISCUSSION Serum PGF and MMP-9 levels may correlate with collateral status based on MP-CTA in acute ischemic stroke patients with cerebral large artery atherosclerosis. Higher PGF and MMP-9 concentration associated with good collateral status.
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Affiliation(s)
- Bo Yang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yarong Ding
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Xin Liu
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yuan Cai
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Xinxuan Yang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Qixuan Lu
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Weibin Gu
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Liping Liu
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
| | - Yuehua Pu
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
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Derraz I, Ahmed R, Benali A, Corti L, Cagnazzo F, Dargazanli C, Gascou G, Riquelme C, Lefevre PH, Bonafe A, Arquizan C, Costalat V. FLAIR vascular hyperintensities and functional outcome in nonagenarians with anterior circulation large-vessel ischemic stroke treated with endovascular thrombectomy. Eur Radiol 2021; 31:7406-7416. [PMID: 33851277 DOI: 10.1007/s00330-021-07866-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 03/04/2021] [Accepted: 03/11/2021] [Indexed: 11/25/2022]
Abstract
OBJECTIVES To establish whether imaging assessments of irreversibly injured ischemic core and potentially salvageable penumbral volumes and collateral circulation were associated with functional outcome in nonagenarians (90 years or older) undergoing endovascular thrombectomy (EVT). METHODS Data from a prospectively maintained institutional registry of consecutive stroke patients treated with EVT from January 2012 to December 2018 were retrospectively analyzed. Functional outcome was evaluated with the modified Rankin scale (mRS) at 3 months. mRS score of 0-3 was defined as a good clinical outcome. Ischemic core and penumbral volumes were calculated using the RAPID software. Quantification of collateral circulation was performed using a fluid-attenuated inversion recovery vascular hyperintensity (FVH)-Alberta Stroke Program Early CT Score (ASPECTS) rating system. RESULTS Among 85 patients (age, 92.4 ± 2.6 years; men, 30.6%) treated with EVT, good outcome (mRS 0-3) was achieved in 29 (34.1%) patients and 31 (36.5%) patients died at 90 days. The median estimated ischemic core volume was 15 mL (IQR, 7-27 mL). The median mismatch volume was 83 mL (IQR, 43-120 mL). The median FVH score was 4 (IQR, 3-4). FVH score was independently associated with good functional outcome (adjusted OR = 1.96 [95% CI, 1.16-3.32]; p = 0.01 per 1-point increase) and mortality (adjusted OR = 0.54 [95% CI, 0.34-0.85]; p = 0.007 per 1-point increase). Ischemic core and mismatch volumes were associated with neither good outcome nor mortality. CONCLUSIONS In nonagenarians with anterior circulation large-vessel ischemic stroke, good collaterals as measured by the FVH-ASPECTS rating system are independently associated with improved outcomes and may help select patients for reperfusion therapy in this frail population. KEY POINTS • Endovascular thrombectomy can allow at least 1 in 3 patients older than 90 years of age to achieve good functional outcome (modified Rankin scale of 0-3) at 3 months. • Functional outcome at 3 months is associated with pre-stroke status (number and severity of patients' comorbidities). • A higher FVH score (as reflected by higher FLAIR vascular hyperintensity [FVH]-Alberta Stroke Program Early CT Score [ASPECTS] values) is independently associated with better 3-month functional outcome and mortality in nonagenarians with anterior circulation ischemic stroke.
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Affiliation(s)
- Imad Derraz
- Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier University Medical Center, 80, Avenue Augustin Fliche, Montpellier, France.
| | - Raed Ahmed
- Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier University Medical Center, 80, Avenue Augustin Fliche, Montpellier, France
| | - Amel Benali
- Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier University Medical Center, 80, Avenue Augustin Fliche, Montpellier, France
| | - Lucas Corti
- Department of Neurology, Hôpital Gui de Chauliac, Montpellier University Medical Center, 80, Avenue Augustin Fliche, Montpellier, France
| | - Federico Cagnazzo
- Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier University Medical Center, 80, Avenue Augustin Fliche, Montpellier, France
| | - Cyril Dargazanli
- Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier University Medical Center, 80, Avenue Augustin Fliche, Montpellier, France
| | - Gregory Gascou
- Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier University Medical Center, 80, Avenue Augustin Fliche, Montpellier, France
| | - Carlos Riquelme
- Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier University Medical Center, 80, Avenue Augustin Fliche, Montpellier, France
| | - Pierre-Henri Lefevre
- Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier University Medical Center, 80, Avenue Augustin Fliche, Montpellier, France
| | - Alain Bonafe
- Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier University Medical Center, 80, Avenue Augustin Fliche, Montpellier, France
| | - Caroline Arquizan
- Department of Neurology, Hôpital Gui de Chauliac, Montpellier University Medical Center, 80, Avenue Augustin Fliche, Montpellier, France
| | - Vincent Costalat
- Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier University Medical Center, 80, Avenue Augustin Fliche, Montpellier, France
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18
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Hajdu SD, Kaesmacher J, Michel P, Sirimarco G, Knebel JF, Bartolini B, Kurmann CC, Puccinelli F, Mosimann PJ, Bonvin C, Arnold M, Niederhäuser J, Eskandari A, Mordasini P, Gralla J, Fischer U, Saliou G. Association of Time of Day When Endovascular Therapy for Stroke Starts and Functional Outcome. Neurology 2021; 96:e1124-e1136. [PMID: 33397770 PMCID: PMC8055343 DOI: 10.1212/wnl.0000000000011449] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 10/28/2020] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE To investigate the association between endovascular therapy (EVT) start time in acute ischemic stroke (AIS) and midterm functional outcome. METHODS This retrospective cohort study included all patients with AIS treated with EVT from 2 stroke center registries from January 2012 to December 2018. The primary outcome was the score on the modified Rankin Scale (mRS) and the utility-weighted mRS (uw-mRS) at 90 days. A proportional odds model was used to calculate the common odds ratio (OR) as a measure of the likelihood that the intervention at a given EVT start time would lead to lower scores on the mRS (shift analysis). RESULTS A total of 1,558 cases were equally allotted into 12 EVT start time periods. The primary outcome favored EVT start times in the morning at 08:00-10:20 and 10:20-11:34 (OR, 0.53; 95% confidence interval [CI], 0.38 to 0.75; p < 0.001; OR, 0.62; 95% CI, 0.44 to 0.87; p = 0.006, respectively), while it disfavored EVT start times at the end of the working day at 15:55-17:15 and 18:55-20:55 (OR, 1.47; 95% CI, 1.03-2.09; p = 0.034; OR, 1.49; 95% CI, 1.03-2.15; p = 0.033). Symptom onset to EVT start time was significantly higher and use of IV tissue plasminogen activator significantly lower between 10:20 and 11:34 (p < 0.004 and p = 0.012, respectively). CONCLUSION EVT for AIS in the morning leads to better midterm functional outcome, while EVT at the end of the work day leads to poorer midterm functional outcome. Difference in baseline factors, standard workflow, and technical efficacy metrics could not be identified as potential mediators of this effect.
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Affiliation(s)
- Steven D Hajdu
- From the Department of Interventional and Diagnostic Radiology (S.D.H., B.B., F.P., G. Saliou), Department of Neurology (P. Michel, G. Sirimarco, A.E.), and Laboratory for Investigative Neurophysiology (The LINE), Department of Radiology, Department of Clinical Neurosciences, EEG Brain Mapping Core, Centre for Biomedical Imaging (CIBM) (J.-F.K.), Lausanne University Hospital, University of Lausanne; University Institute for Diagnostic, Interventional and Pediatric Radiology (J.K., C.C.K., M.A., U.F.), University Institute for Diagnostic and Interventional Neuroradiology (P.J.M., P. Mordasini, J.G.), University Hospital of Bern, University of Bern; Department of Neurology (C.B.), Sion Hospital; and Department of Neurology (J.N.), Nyon Regional Hospital, Switzerland.
| | - Johannes Kaesmacher
- From the Department of Interventional and Diagnostic Radiology (S.D.H., B.B., F.P., G. Saliou), Department of Neurology (P. Michel, G. Sirimarco, A.E.), and Laboratory for Investigative Neurophysiology (The LINE), Department of Radiology, Department of Clinical Neurosciences, EEG Brain Mapping Core, Centre for Biomedical Imaging (CIBM) (J.-F.K.), Lausanne University Hospital, University of Lausanne; University Institute for Diagnostic, Interventional and Pediatric Radiology (J.K., C.C.K., M.A., U.F.), University Institute for Diagnostic and Interventional Neuroradiology (P.J.M., P. Mordasini, J.G.), University Hospital of Bern, University of Bern; Department of Neurology (C.B.), Sion Hospital; and Department of Neurology (J.N.), Nyon Regional Hospital, Switzerland
| | - Patrik Michel
- From the Department of Interventional and Diagnostic Radiology (S.D.H., B.B., F.P., G. Saliou), Department of Neurology (P. Michel, G. Sirimarco, A.E.), and Laboratory for Investigative Neurophysiology (The LINE), Department of Radiology, Department of Clinical Neurosciences, EEG Brain Mapping Core, Centre for Biomedical Imaging (CIBM) (J.-F.K.), Lausanne University Hospital, University of Lausanne; University Institute for Diagnostic, Interventional and Pediatric Radiology (J.K., C.C.K., M.A., U.F.), University Institute for Diagnostic and Interventional Neuroradiology (P.J.M., P. Mordasini, J.G.), University Hospital of Bern, University of Bern; Department of Neurology (C.B.), Sion Hospital; and Department of Neurology (J.N.), Nyon Regional Hospital, Switzerland
| | - Gaia Sirimarco
- From the Department of Interventional and Diagnostic Radiology (S.D.H., B.B., F.P., G. Saliou), Department of Neurology (P. Michel, G. Sirimarco, A.E.), and Laboratory for Investigative Neurophysiology (The LINE), Department of Radiology, Department of Clinical Neurosciences, EEG Brain Mapping Core, Centre for Biomedical Imaging (CIBM) (J.-F.K.), Lausanne University Hospital, University of Lausanne; University Institute for Diagnostic, Interventional and Pediatric Radiology (J.K., C.C.K., M.A., U.F.), University Institute for Diagnostic and Interventional Neuroradiology (P.J.M., P. Mordasini, J.G.), University Hospital of Bern, University of Bern; Department of Neurology (C.B.), Sion Hospital; and Department of Neurology (J.N.), Nyon Regional Hospital, Switzerland
| | - Jean-Francois Knebel
- From the Department of Interventional and Diagnostic Radiology (S.D.H., B.B., F.P., G. Saliou), Department of Neurology (P. Michel, G. Sirimarco, A.E.), and Laboratory for Investigative Neurophysiology (The LINE), Department of Radiology, Department of Clinical Neurosciences, EEG Brain Mapping Core, Centre for Biomedical Imaging (CIBM) (J.-F.K.), Lausanne University Hospital, University of Lausanne; University Institute for Diagnostic, Interventional and Pediatric Radiology (J.K., C.C.K., M.A., U.F.), University Institute for Diagnostic and Interventional Neuroradiology (P.J.M., P. Mordasini, J.G.), University Hospital of Bern, University of Bern; Department of Neurology (C.B.), Sion Hospital; and Department of Neurology (J.N.), Nyon Regional Hospital, Switzerland
| | - Bruno Bartolini
- From the Department of Interventional and Diagnostic Radiology (S.D.H., B.B., F.P., G. Saliou), Department of Neurology (P. Michel, G. Sirimarco, A.E.), and Laboratory for Investigative Neurophysiology (The LINE), Department of Radiology, Department of Clinical Neurosciences, EEG Brain Mapping Core, Centre for Biomedical Imaging (CIBM) (J.-F.K.), Lausanne University Hospital, University of Lausanne; University Institute for Diagnostic, Interventional and Pediatric Radiology (J.K., C.C.K., M.A., U.F.), University Institute for Diagnostic and Interventional Neuroradiology (P.J.M., P. Mordasini, J.G.), University Hospital of Bern, University of Bern; Department of Neurology (C.B.), Sion Hospital; and Department of Neurology (J.N.), Nyon Regional Hospital, Switzerland
| | - Christoph C Kurmann
- From the Department of Interventional and Diagnostic Radiology (S.D.H., B.B., F.P., G. Saliou), Department of Neurology (P. Michel, G. Sirimarco, A.E.), and Laboratory for Investigative Neurophysiology (The LINE), Department of Radiology, Department of Clinical Neurosciences, EEG Brain Mapping Core, Centre for Biomedical Imaging (CIBM) (J.-F.K.), Lausanne University Hospital, University of Lausanne; University Institute for Diagnostic, Interventional and Pediatric Radiology (J.K., C.C.K., M.A., U.F.), University Institute for Diagnostic and Interventional Neuroradiology (P.J.M., P. Mordasini, J.G.), University Hospital of Bern, University of Bern; Department of Neurology (C.B.), Sion Hospital; and Department of Neurology (J.N.), Nyon Regional Hospital, Switzerland
| | - Francesco Puccinelli
- From the Department of Interventional and Diagnostic Radiology (S.D.H., B.B., F.P., G. Saliou), Department of Neurology (P. Michel, G. Sirimarco, A.E.), and Laboratory for Investigative Neurophysiology (The LINE), Department of Radiology, Department of Clinical Neurosciences, EEG Brain Mapping Core, Centre for Biomedical Imaging (CIBM) (J.-F.K.), Lausanne University Hospital, University of Lausanne; University Institute for Diagnostic, Interventional and Pediatric Radiology (J.K., C.C.K., M.A., U.F.), University Institute for Diagnostic and Interventional Neuroradiology (P.J.M., P. Mordasini, J.G.), University Hospital of Bern, University of Bern; Department of Neurology (C.B.), Sion Hospital; and Department of Neurology (J.N.), Nyon Regional Hospital, Switzerland
| | - Pascal J Mosimann
- From the Department of Interventional and Diagnostic Radiology (S.D.H., B.B., F.P., G. Saliou), Department of Neurology (P. Michel, G. Sirimarco, A.E.), and Laboratory for Investigative Neurophysiology (The LINE), Department of Radiology, Department of Clinical Neurosciences, EEG Brain Mapping Core, Centre for Biomedical Imaging (CIBM) (J.-F.K.), Lausanne University Hospital, University of Lausanne; University Institute for Diagnostic, Interventional and Pediatric Radiology (J.K., C.C.K., M.A., U.F.), University Institute for Diagnostic and Interventional Neuroradiology (P.J.M., P. Mordasini, J.G.), University Hospital of Bern, University of Bern; Department of Neurology (C.B.), Sion Hospital; and Department of Neurology (J.N.), Nyon Regional Hospital, Switzerland
| | - Christophe Bonvin
- From the Department of Interventional and Diagnostic Radiology (S.D.H., B.B., F.P., G. Saliou), Department of Neurology (P. Michel, G. Sirimarco, A.E.), and Laboratory for Investigative Neurophysiology (The LINE), Department of Radiology, Department of Clinical Neurosciences, EEG Brain Mapping Core, Centre for Biomedical Imaging (CIBM) (J.-F.K.), Lausanne University Hospital, University of Lausanne; University Institute for Diagnostic, Interventional and Pediatric Radiology (J.K., C.C.K., M.A., U.F.), University Institute for Diagnostic and Interventional Neuroradiology (P.J.M., P. Mordasini, J.G.), University Hospital of Bern, University of Bern; Department of Neurology (C.B.), Sion Hospital; and Department of Neurology (J.N.), Nyon Regional Hospital, Switzerland
| | - Marcel Arnold
- From the Department of Interventional and Diagnostic Radiology (S.D.H., B.B., F.P., G. Saliou), Department of Neurology (P. Michel, G. Sirimarco, A.E.), and Laboratory for Investigative Neurophysiology (The LINE), Department of Radiology, Department of Clinical Neurosciences, EEG Brain Mapping Core, Centre for Biomedical Imaging (CIBM) (J.-F.K.), Lausanne University Hospital, University of Lausanne; University Institute for Diagnostic, Interventional and Pediatric Radiology (J.K., C.C.K., M.A., U.F.), University Institute for Diagnostic and Interventional Neuroradiology (P.J.M., P. Mordasini, J.G.), University Hospital of Bern, University of Bern; Department of Neurology (C.B.), Sion Hospital; and Department of Neurology (J.N.), Nyon Regional Hospital, Switzerland
| | - Julien Niederhäuser
- From the Department of Interventional and Diagnostic Radiology (S.D.H., B.B., F.P., G. Saliou), Department of Neurology (P. Michel, G. Sirimarco, A.E.), and Laboratory for Investigative Neurophysiology (The LINE), Department of Radiology, Department of Clinical Neurosciences, EEG Brain Mapping Core, Centre for Biomedical Imaging (CIBM) (J.-F.K.), Lausanne University Hospital, University of Lausanne; University Institute for Diagnostic, Interventional and Pediatric Radiology (J.K., C.C.K., M.A., U.F.), University Institute for Diagnostic and Interventional Neuroradiology (P.J.M., P. Mordasini, J.G.), University Hospital of Bern, University of Bern; Department of Neurology (C.B.), Sion Hospital; and Department of Neurology (J.N.), Nyon Regional Hospital, Switzerland
| | - Ashraf Eskandari
- From the Department of Interventional and Diagnostic Radiology (S.D.H., B.B., F.P., G. Saliou), Department of Neurology (P. Michel, G. Sirimarco, A.E.), and Laboratory for Investigative Neurophysiology (The LINE), Department of Radiology, Department of Clinical Neurosciences, EEG Brain Mapping Core, Centre for Biomedical Imaging (CIBM) (J.-F.K.), Lausanne University Hospital, University of Lausanne; University Institute for Diagnostic, Interventional and Pediatric Radiology (J.K., C.C.K., M.A., U.F.), University Institute for Diagnostic and Interventional Neuroradiology (P.J.M., P. Mordasini, J.G.), University Hospital of Bern, University of Bern; Department of Neurology (C.B.), Sion Hospital; and Department of Neurology (J.N.), Nyon Regional Hospital, Switzerland
| | - Pasquale Mordasini
- From the Department of Interventional and Diagnostic Radiology (S.D.H., B.B., F.P., G. Saliou), Department of Neurology (P. Michel, G. Sirimarco, A.E.), and Laboratory for Investigative Neurophysiology (The LINE), Department of Radiology, Department of Clinical Neurosciences, EEG Brain Mapping Core, Centre for Biomedical Imaging (CIBM) (J.-F.K.), Lausanne University Hospital, University of Lausanne; University Institute for Diagnostic, Interventional and Pediatric Radiology (J.K., C.C.K., M.A., U.F.), University Institute for Diagnostic and Interventional Neuroradiology (P.J.M., P. Mordasini, J.G.), University Hospital of Bern, University of Bern; Department of Neurology (C.B.), Sion Hospital; and Department of Neurology (J.N.), Nyon Regional Hospital, Switzerland
| | - Jan Gralla
- From the Department of Interventional and Diagnostic Radiology (S.D.H., B.B., F.P., G. Saliou), Department of Neurology (P. Michel, G. Sirimarco, A.E.), and Laboratory for Investigative Neurophysiology (The LINE), Department of Radiology, Department of Clinical Neurosciences, EEG Brain Mapping Core, Centre for Biomedical Imaging (CIBM) (J.-F.K.), Lausanne University Hospital, University of Lausanne; University Institute for Diagnostic, Interventional and Pediatric Radiology (J.K., C.C.K., M.A., U.F.), University Institute for Diagnostic and Interventional Neuroradiology (P.J.M., P. Mordasini, J.G.), University Hospital of Bern, University of Bern; Department of Neurology (C.B.), Sion Hospital; and Department of Neurology (J.N.), Nyon Regional Hospital, Switzerland
| | - Urs Fischer
- From the Department of Interventional and Diagnostic Radiology (S.D.H., B.B., F.P., G. Saliou), Department of Neurology (P. Michel, G. Sirimarco, A.E.), and Laboratory for Investigative Neurophysiology (The LINE), Department of Radiology, Department of Clinical Neurosciences, EEG Brain Mapping Core, Centre for Biomedical Imaging (CIBM) (J.-F.K.), Lausanne University Hospital, University of Lausanne; University Institute for Diagnostic, Interventional and Pediatric Radiology (J.K., C.C.K., M.A., U.F.), University Institute for Diagnostic and Interventional Neuroradiology (P.J.M., P. Mordasini, J.G.), University Hospital of Bern, University of Bern; Department of Neurology (C.B.), Sion Hospital; and Department of Neurology (J.N.), Nyon Regional Hospital, Switzerland
| | - Guillaume Saliou
- From the Department of Interventional and Diagnostic Radiology (S.D.H., B.B., F.P., G. Saliou), Department of Neurology (P. Michel, G. Sirimarco, A.E.), and Laboratory for Investigative Neurophysiology (The LINE), Department of Radiology, Department of Clinical Neurosciences, EEG Brain Mapping Core, Centre for Biomedical Imaging (CIBM) (J.-F.K.), Lausanne University Hospital, University of Lausanne; University Institute for Diagnostic, Interventional and Pediatric Radiology (J.K., C.C.K., M.A., U.F.), University Institute for Diagnostic and Interventional Neuroradiology (P.J.M., P. Mordasini, J.G.), University Hospital of Bern, University of Bern; Department of Neurology (C.B.), Sion Hospital; and Department of Neurology (J.N.), Nyon Regional Hospital, Switzerland
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Mohammaden MH, Stapleton CJ, Brunozzi D, Hussein AE, Khedr EM, Atwal G, Alaraj A. Predictors of Poor Outcome Despite Successful Mechanical Thrombectomy of Anterior Circulation Large Vessel Occlusions Within 6 h of Symptom Onset. Front Neurol 2020; 11:907. [PMID: 33013629 PMCID: PMC7498572 DOI: 10.3389/fneur.2020.00907] [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: 05/09/2020] [Accepted: 07/14/2020] [Indexed: 11/26/2022] Open
Abstract
Background and Purpose: Successful reperfusion is a significant predictor of a good clinical outcome after mechanical thrombectomy (MT). However, some patients have a poor clinical outcome even with successful reperfusion. We aimed to study factors that predict a poor clinical outcome (90-day modified Rankin Scale ≥ 3) in patients with anterior circulation large vessel occlusion (LVO) treated by successful MT within 6 h of symptom onset. Methods: We performed a retrospective review of a prospectively maintained MT database of all patients who underwent MT within 6 h of symptom onset for an anterior circulation LVO at our institution from May 2016 to June 2018. Uni- and multivariable analyses were performed to identify predictors of poor outcome. Results: A total of 56 patients met the criteria for inclusion in this study. A poor outcome occurred in 31 (55.4%) patients. On univariate analysis, compared to patients with good clinical outcome, patients with poor outcome had higher mean baseline NIHSS scores (23.3 vs. 13.8, P < 0.001), were more likely to have internal carotid artery (ICA) occlusions (38.7 vs. 8%, P = 0.008), and had a higher incidence of distal clot migration (DCM) (48.4 vs. 8%, P = 0.028). Age, gender, other baseline clinical characteristics, MT technique, and incidence of hemorrhagic transformation did not differ between the two cohorts. On multivariable regression analysis, baseline NIHSS score [OR; 1.3, 95%CI [1.11–1.52], P = 0.001], site of occlusion (ICA) [OR; 8.9, 95%CI [1.3–60.9], P = 0.026], and DCM [OR; 5.77, 95%CI [1.09–30.69], P = 0.04] were independent predictors of poor outcome at 90-days. Conclusion: Baseline NIHSS score, ICA occlusion, and DCM are independent predictors of a poor outcome after MT for anterior circulation LVO performed within 6 h of symptoms onset.
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Affiliation(s)
- Mahmoud H Mohammaden
- Department of Neurology, South Valley University Qena Faculty of Medicine, Qena, Egypt.,Department of Neurology, Marcus Stroke and Neuroscience Center, Emory University School of Medicine, Grady Memorial Hospital, Atlanta, GA, United States
| | - Christopher J Stapleton
- Department of Neurosurgery, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Denise Brunozzi
- Department of Neurosurgery, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Ahmad E Hussein
- Department of Neurosurgery, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Eman M Khedr
- Department of Neurology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Gursant Atwal
- Department of Neurosurgery, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Ali Alaraj
- Department of Neurosurgery, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
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20
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Ma J, Ma Y, Shuaib A, Winship IR. Improved collateral flow and reduced damage after remote ischemic perconditioning during distal middle cerebral artery occlusion in aged rats. Sci Rep 2020; 10:12392. [PMID: 32709950 PMCID: PMC7381676 DOI: 10.1038/s41598-020-69122-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 07/07/2020] [Indexed: 02/05/2023] Open
Abstract
Circulation through cerebral collaterals can maintain tissue viability until reperfusion is achieved. However, collateral circulation is time limited, and failure of collaterals is accelerated in the aged. Remote ischemic perconditioning (RIPerC), which involves inducing a series of repetitive, transient peripheral cycles of ischemia and reperfusion at a site remote to the brain during cerebral ischemia, may be neuroprotective and can prevent collateral failure in young adult rats. Here, we demonstrate the efficacy of RIPerC to improve blood flow through collaterals in aged (16-18 months of age) Sprague Dawley rats during a distal middle cerebral artery occlusion. Laser speckle contrast imaging and two-photon laser scanning microscopy were used to directly measure flow through collateral connections to ischemic tissue. Consistent with studies in young adult rats, RIPerC enhanced collateral flow by preventing the stroke-induced narrowing of pial arterioles during ischemia. This improved flow was associated with reduced early ischemic damage in RIPerC treated aged rats relative to controls. Thus, RIPerC is an easily administered, non-invasive neuroprotective strategy that can improve penumbral blood flow via collaterals. Enhanced collateral flow supports further investigation as an adjuvant therapy to recanalization therapy and a protective treatment to maintain tissue viability prior to reperfusion.
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Affiliation(s)
- Junqiang Ma
- Neurochemical Research Unit, Department of Psychiatry, 12-127 Clinical Sciences Building, University of Alberta, Edmonton, AB, T6G 2R3, Canada
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
- First Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Yonglie Ma
- Neurochemical Research Unit, Department of Psychiatry, 12-127 Clinical Sciences Building, University of Alberta, Edmonton, AB, T6G 2R3, Canada
| | - Ashfaq Shuaib
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
- Division of Neurology, Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Ian R Winship
- Neurochemical Research Unit, Department of Psychiatry, 12-127 Clinical Sciences Building, University of Alberta, Edmonton, AB, T6G 2R3, Canada.
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada.
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Cipolla MJ, Chan SL. Impact of Acute and Chronic Hypertension on Changes in Pial Collateral Tone In Vivo During Transient Ischemia. Hypertension 2020; 76:1019-1026. [PMID: 32683904 DOI: 10.1161/hypertensionaha.120.15356] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
We investigated vasoconstrictive responses of pial collaterals in vivo at baseline and during transient middle cerebral artery occlusion during chronic hypertension. A cranial window was used to measure diameter of leptomeningeal anastomoses (pial collaterals) in male Wistar (n=8) and spontaneously hypertensive rats (SHRs; n=8) using video dimensional analysis. Middle cerebral artery occlusion was induced by remote filament for 2 hours with 2 hours reperfusion. Phenylephrine was infused during ischemia as a pressor therapy. Active diameters of pial collaterals were significantly smaller in SHRs versus Wistar (14.1±1.5 versus 21.6±2.8 µm; P<0.01); however, passive diameters were similar (25.0±2.9 versus 25.0±2.6 µm; P>0.05). Basal tone of pial collaterals before occlusion was 42±5% in SHRs versus 15±4% in Wistar (P<0.01). Tone decreased in both Wistar and SHRs during occlusion but remained higher in SHRs (9±2% versus 29±4%; P<0.05). Phenylephrine increased blood pressure in both groups but had little effect on leptomeningeal anastomoses diameters. Reperfusion caused vasoconstriction of pial collaterals, increasing tone from 8±1% to 20±5% in Wistar and 29±5% to 44±5% in SHRs (P<0.01). Higher tone in pial collaterals from SHRs basally and during occlusion/reperfusion could limit flow to the penumbra and promote evolution of infarction. Sustained elevated tone of pial collaterals from SHRs with phenylephrine suggests pressor therapy may not be appropriate during chronic hypertension.
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Affiliation(s)
- Marilyn J Cipolla
- From the Departments of Neurological Sciences, Obstetrics, Gynecology and Reproductive Sciences, and Pharmacology, University of Vermont Larner College of Medicine, Burlington
| | - Siu-Lung Chan
- From the Departments of Neurological Sciences, Obstetrics, Gynecology and Reproductive Sciences, and Pharmacology, University of Vermont Larner College of Medicine, Burlington
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22
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Tsuji Y, Miki T, Kakita H, Sato K, Yoshida T, Shimizu F. Clinical Results of Mechanical Thrombectomy in Nonagenarians with Acute Ischemic Stroke. JOURNAL OF NEUROENDOVASCULAR THERAPY 2020; 14:295-300. [PMID: 37502174 PMCID: PMC10370600 DOI: 10.5797/jnet.oa.2019-0084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 04/04/2020] [Indexed: 07/29/2023]
Abstract
Objective Multiple randomized trials have demonstrated the efficacy of mechanical thrombectomy (MT), but very elderly patients aged ≥90 years were excluded. It remains uncertain whether endovascular therapy is effective for nonagenarians. The objective of this study was to investigate the effectiveness and safety of MT in nonagenarians. Methods Between January 2016 and March 2019, acute ischemic stroke patients aged ≥80 years who underwent MT at our hospital were retrospectively reviewed. Patients with a baseline pre-stroke modified Rankin Scale (mRS) score ≥3 were excluded from the analysis. They were divided into octogenarians (80-89 years old) and nonagenarians (90-99 years old). Results Forty-five patients met the inclusion criteria, including 34 octogenarians and 11 nonagenarians. Nonagenarians were more likely to be female (47.0% vs 90.9%; p <0.05). There was a significantly lower rate of a pre-stroke mRS score of 0-1 among the nonagenarians (91.1% vs 63.6%; p <0.05). Revascularization was successful in 71.0% and 81.8% (p = 0.46) of octogenarians and nonagenarians, respectively. Functional independence (mRS ≤2) at discharge was observed in 26.4% vs 27.2% (p = 0.95) of octogenarians and nonagenarians, respectively. Conclusion MT in nonagenarians can be considered safe without increasing hemorrhagic complications in comparison with that in octogenarians. One in four patients may have a good outcome and obtain effects equivalent to those in octogenarians if they have a good pre-stroke functional status.
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Affiliation(s)
- Yuichiro Tsuji
- Department of Neurosurgery, Shimizu Hospital, Kyoto, Kyoto, Japan
| | - Takanori Miki
- Department of Neurosurgery, Shimizu Hospital, Kyoto, Kyoto, Japan
| | - Hiroto Kakita
- Department of Neurosurgery, Shimizu Hospital, Kyoto, Kyoto, Japan
| | - Kimitoshi Sato
- Department of Neurosurgery, Shimizu Hospital, Kyoto, Kyoto, Japan
| | - Takashi Yoshida
- Department of Neurosurgery, Shimizu Hospital, Kyoto, Kyoto, Japan
| | - Fuminori Shimizu
- Department of Neurosurgery, Shimizu Hospital, Kyoto, Kyoto, Japan
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23
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Wiegers EJA, Mulder MJHL, Jansen IGH, Venema E, Compagne KCJ, Berkhemer OA, Emmer BJ, Marquering HA, van Es ACGM, Sprengers ME, van Zwam WH, van Oostenbrugge RJ, Roos YBWEM, Majoie CBLM, Roozenbeek B, Lingsma HF, Dippel DWJ, van der Lugt A. Clinical and Imaging Determinants of Collateral Status in Patients With Acute Ischemic Stroke in MR CLEAN Trial and Registry. Stroke 2020; 51:1493-1502. [PMID: 32279619 DOI: 10.1161/strokeaha.119.027483] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Background and Purpose- Collateral circulation status at baseline is associated with functional outcome after ischemic stroke and effect of endovascular treatment. We aimed to identify clinical and imaging determinants that are associated with collateral grade on baseline computed tomography angiography in patients with acute ischemic stroke due to an anterior circulation large vessel occlusion. Methods- Patients included in the MR CLEAN trial (Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands; n=500) and MR CLEAN Registry (n=1488) were studied. Collateral status on baseline computed tomography angiography was scored from 0 (absent) to 3 (good). Multivariable ordinal logistic regression analyses were used to test the association of selected determinants with collateral status. Results- In total, 1988 patients were analyzed. Distribution of the collateral status was as follows: absent (7%, n=123), poor (32%, n=596), moderate (39%, n=735), and good (23%, n=422). Associations for a poor collateral status in a multivariable model existed for age (adjusted common odds ratio, 0.92 per 10 years [95% CI, 0.886-0.98]), male (adjusted common odds ratio, 0.64 [95% CI, 0.53-0.76]), blood glucose level (adjusted common odds ratio, 0.97 [95% CI, 0.95-1.00]), and occlusion of the intracranial segment of the internal carotid artery with occlusion of the terminus (adjusted common odds ratio 0.50 [95% CI, 0.41-0.61]). In contrast to previous studies, we did not find an association between cardiovascular risk factors and collateral status. Conclusions- Older age, male sex, high glucose levels, and intracranial internal carotid artery with occlusion of the terminus occlusions are associated with poor computed tomography angiography collateral grades in patients with acute ischemic stroke eligible for endovascular treatment.
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Affiliation(s)
- Eveline J A Wiegers
- From the Department of Public Health (E.J.A.W., E.V., H.F.L.), Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Maxim J H L Mulder
- Department of Neurology (M.J.H.L.M., E.V., K.C.J.C., O.A.B., B.R., D.W.J.D.), Erasmus University Medical Center, Rotterdam, the Netherlands.,Department of Radiology and Nuclear Medicine (M.J.H.L.M., K.C.J.C., O.A.B., A.C.G.M.v.E., B.R., A.v.d.L.), Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Ivo G H Jansen
- Department of Radiology and Nuclear Medicine (I.G.H.J., B.J.E., H.A.M., M.E.S., C.B.L.M.M.), Amsterdam UMC, location AMC, the Netherlands
| | - Esmee Venema
- From the Department of Public Health (E.J.A.W., E.V., H.F.L.), Erasmus University Medical Center, Rotterdam, the Netherlands.,Department of Neurology (M.J.H.L.M., E.V., K.C.J.C., O.A.B., B.R., D.W.J.D.), Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Kars C J Compagne
- Department of Neurology (M.J.H.L.M., E.V., K.C.J.C., O.A.B., B.R., D.W.J.D.), Erasmus University Medical Center, Rotterdam, the Netherlands.,Department of Radiology and Nuclear Medicine (M.J.H.L.M., K.C.J.C., O.A.B., A.C.G.M.v.E., B.R., A.v.d.L.), Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Olvert A Berkhemer
- Department of Neurology (M.J.H.L.M., E.V., K.C.J.C., O.A.B., B.R., D.W.J.D.), Erasmus University Medical Center, Rotterdam, the Netherlands.,Department of Radiology and Nuclear Medicine (M.J.H.L.M., K.C.J.C., O.A.B., A.C.G.M.v.E., B.R., A.v.d.L.), Erasmus University Medical Center, Rotterdam, the Netherlands.,Cardiovascular Research Institute Maastricht, the Netherlands (O.A.B., W.H.v.Z., R.J.v.O.)
| | - Bart J Emmer
- Department of Radiology and Nuclear Medicine (I.G.H.J., B.J.E., H.A.M., M.E.S., C.B.L.M.M.), Amsterdam UMC, location AMC, the Netherlands
| | - Henk A Marquering
- Department of Radiology and Nuclear Medicine (I.G.H.J., B.J.E., H.A.M., M.E.S., C.B.L.M.M.), Amsterdam UMC, location AMC, the Netherlands.,Department of Biomedical Engineering and Physics (H.A.M.), Amsterdam UMC, location AMC, the Netherlands
| | - Adriaan C G M van Es
- Department of Radiology and Nuclear Medicine (M.J.H.L.M., K.C.J.C., O.A.B., A.C.G.M.v.E., B.R., A.v.d.L.), Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Marieke E Sprengers
- Department of Radiology and Nuclear Medicine (I.G.H.J., B.J.E., H.A.M., M.E.S., C.B.L.M.M.), Amsterdam UMC, location AMC, the Netherlands
| | - Wim H van Zwam
- Cardiovascular Research Institute Maastricht, the Netherlands (O.A.B., W.H.v.Z., R.J.v.O.).,Department of Radiology (W.H.v.Z.), Maastricht University Medical Center, the Netherlands
| | - Robert J van Oostenbrugge
- Cardiovascular Research Institute Maastricht, the Netherlands (O.A.B., W.H.v.Z., R.J.v.O.).,Department of Neurology (R.J.v.O.), Maastricht University Medical Center, the Netherlands
| | - Yvo B W E M Roos
- Department of Neurology, Academic Medical Center, Amsterdam, the Netherlands (Y.B.W.E.M.R.)
| | - Charles B L M Majoie
- Department of Radiology and Nuclear Medicine (I.G.H.J., B.J.E., H.A.M., M.E.S., C.B.L.M.M.), Amsterdam UMC, location AMC, the Netherlands
| | - Bob Roozenbeek
- Department of Neurology (M.J.H.L.M., E.V., K.C.J.C., O.A.B., B.R., D.W.J.D.), Erasmus University Medical Center, Rotterdam, the Netherlands.,Department of Radiology and Nuclear Medicine (M.J.H.L.M., K.C.J.C., O.A.B., A.C.G.M.v.E., B.R., A.v.d.L.), Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Hester F Lingsma
- From the Department of Public Health (E.J.A.W., E.V., H.F.L.), Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Diederik W J Dippel
- Department of Neurology (M.J.H.L.M., E.V., K.C.J.C., O.A.B., B.R., D.W.J.D.), Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Aad van der Lugt
- Department of Radiology and Nuclear Medicine (M.J.H.L.M., K.C.J.C., O.A.B., A.C.G.M.v.E., B.R., A.v.d.L.), Erasmus University Medical Center, Rotterdam, the Netherlands
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Ma J, Ma Y, Shuaib A, Winship IR. Impaired Collateral Flow in Pial Arterioles of Aged Rats During Ischemic Stroke. Transl Stroke Res 2020; 11:243-253. [PMID: 31203565 PMCID: PMC7067739 DOI: 10.1007/s12975-019-00710-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 05/02/2019] [Accepted: 06/05/2019] [Indexed: 02/05/2023]
Abstract
Cerebral collateral circulation and age are critical factors in determining outcome from acute ischemic stroke. Aging may lead to rarefaction of cerebral collaterals, and thereby accelerate ischemic injury by reducing penumbral blood flow. Dynamic changes in pial collaterals after onset of cerebral ischemia may vary with age but have not been extensively studied. Here, laser speckle contrast imaging (LSCI) and two-photon laser scanning microscopy (TPLSM) were combined to monitor cerebral pial collaterals between the anterior cerebral artery (ACA) and the middle cerebral artery (MCA) in young adult and aged male Sprague Dawley rats during distal middle cerebral artery occlusion (dMCAo). Histological analysis showed that aged rats had significantly greater volumes of ischemic damage than young rats. LSCI showed that cerebral collateral perfusion declined over time after stroke in aged and young rats, and that this decline was significantly greater in aged rats. TPLSM demonstrated that pial arterioles narrowed faster after dMCAo in aged rats compared to young adult rats. Notably, while arteriole vessel narrowing was comparable 4.5 h after ischemic onset in aged and young adult rats, red blood cell velocity was stable in young adults but declined over time in aged rats. Overall, red blood cell flux through pial arterioles was significantly reduced at all time-points after 90 min post-dMCAo in aged rats relative to young adult rats. Thus, collateral failure is more severe in aged rats with significantly impaired pial collateral dynamics (reduced diameter, red blood cell velocity, and red blood cell flux) relative to young adult rats.
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Affiliation(s)
- Junqiang Ma
- Neurochemical Research Unit, Department of Psychiatry, Faculty of Medicine and Dentistry, University of Alberta, 12-127 Clinical Sciences Building, Edmonton, AB, T6G 2R3, Canada
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
- First Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Yonglie Ma
- Neurochemical Research Unit, Department of Psychiatry, Faculty of Medicine and Dentistry, University of Alberta, 12-127 Clinical Sciences Building, Edmonton, AB, T6G 2R3, Canada
| | - Ashfaq Shuaib
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
- Division of Neurology, Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Ian R Winship
- Neurochemical Research Unit, Department of Psychiatry, Faculty of Medicine and Dentistry, University of Alberta, 12-127 Clinical Sciences Building, Edmonton, AB, T6G 2R3, Canada.
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada.
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Mark I, Seyedsaadat SM, Benson JC, Kallmes DF, Rabinstein AA, Brinjikji W. Leukoaraiosis and collateral blood flow in stroke patients with anterior circulation large vessel occlusion. J Neurointerv Surg 2020; 12:942-945. [DOI: 10.1136/neurintsurg-2019-015652] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 12/27/2019] [Accepted: 01/01/2020] [Indexed: 11/04/2022]
Abstract
BackgroundLeukoaraiosis and collateral blood flow are processes that involve small vessels, the former related to flow within the deep perforating arterioles and the latter involving the small, cortical pial-pial connections, both of which are independently used to predict cerebrovascular events and treatment outcomes. The aim of this study was to investigate their relationship to each other.MethodsWe retrospectively reviewed patients who underwent mechanical thrombectomy for stroke with pre-procedural CT imaging within 24 hours of the onset of symptoms. Leukoaraiosis was graded by the total Fazekas score on non-contrast CT, periventricular white matter (PVWM) and deep white matter (DWM) scores, both ranging from 0 to 3. Collateral cerebral blood flow was measured by the American Society of Interventional and Therapeutic Radiology/Society of Interventional Radiology (ASITN/SIR) collateral scale.Results178 patients were included with a mean age of 67.6±14.8 years. We found an inverse relationship between total Fazekas score and collateral flow (p<0.0001). Among patients with good collaterals, 75.1% had total Fazekas scores of 0–2, compared with 36.6% of patients with moderate collaterals and 32.7% of patients with poor collaterals with total Fazekas scores of 0–2. Mean Fazekas scores were 1.6±1.5, 3.1±1.5 and 3.4±1.6 for good, moderate and poor collaterals, respectively (p<0.0001). On multivariate analysis, total Fazekas score was the only variable independently associated with collateral status (p<0.0001).ConclusionsIncreasing severity of leukoaraiosis is associated with poor collateral grade among ischemic stroke patients with anterior circulation large vessel occlusion. These findings suggest that leukoaraiosis may be a marker for global cerebrovascular dysfunction.
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Christoforidis GA, Saadat N, Kontzialis M, Karakasis CJ, Slivka AP. Predictors for the extent of pial collateral recruitment in acute ischemic stroke. Neuroradiol J 2020; 33:98-104. [PMID: 31896284 DOI: 10.1177/1971400919897389] [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] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Pial arterioles can provide a variable degree of collateral flow to ischemic vascular territories during acute ischemic stroke. This study sought to identify predictive factors of the degree of pial collateral recruitment in acute ischemic stroke. METHODS Clinical information and arteriograms from 62 consecutive patients with stroke due to either middle cerebral artery (MCA) M1 segment or internal carotid artery (ICA) terminus occlusion within 6 h following symptom onset were retrospectively reviewed. Pial collaterals were defined based on the extent of reconstitution of the MCA territory. Patients with slow antegrade flow distal to the occlusion site were excluded and no anesthetics were used prior or during angiography. Results were analyzed using multivariate nominal logistic regression. RESULTS Better pial collateral recruitment was associated with proximal MCA versus ICA terminus occlusion (p = 0.005; odds ratio (OR) = 9.3; 95% confidence interval (CI), 2.16-53.3), lower presenting National Institutes of Health Stroke Scale Score (NIHSSS) (p = 0.023; OR = 6.51; 95% CI, 1.49-41.7), and lower diastolic blood pressure (p = 0.0411; OR = 5.05; 95% CI, 1.20-29.2). Age, gender, symptom duration, diabetes, laterality, systolic blood pressure, glucose level, hematocrit, platelet level, and white blood cell count at presentation were not found to have a statistically significant association with pial collateral recruitment. CONCLUSIONS Extent of pial collateral recruitment is strongly associated with the occlusion site (MCA M1 segment versus ICA terminus) and less strongly associated with presenting NIHSSS and diastolic blood pressure.
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Dong XF, Kong FZ, Shen MQ, Huang J, Gao ZE, Guo QZ, Zhao Z, Luo WF, Cheng QZ, Wu GH. Triiodothyronine levels were positively correlated with opening of collateral circulation in cerebral infarction patients with large artery atherosclerosis. Arch Med Sci 2020; 16:51-57. [PMID: 32051705 PMCID: PMC6963139 DOI: 10.5114/aoms.2020.91286] [Citation(s) in RCA: 2] [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: 05/25/2017] [Accepted: 07/21/2017] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION Non-thyroidal illness syndrome (NTIS) is one of the signs for poor prognosis of cerebral infarction (CI), but its risk factors had never been explored. In this study, we analyzed the potential effect of collateral circulation on prognosis prediction of triiodothyronine for large artery atherosclerosis cerebral infarction (LAA-CI) patients. MATERIAL AND METHODS Clinical data of CI patients between 2012 and 2014 were collected. Imaging inspection was used for determining TOAST classification and evaluating collateral circulation. One-year follow-up was conducted for mRS score by telephone. RESULTS T3 level in the NTIS group (p = 0.001) was significantly decreased while TSH level (p < 0.001) was increased. Patients in the NTIS group had a poorer prognosis (p = 0.008) and the main reason was the high mortality (p = 0.002). NTIS predicted poor collateral circulation (p = 0.026) and good collateral circulation tended to be less likely concomitant with NTIS (p = 0.001). Logistic regression analysis showed that triiodothyronine concentrations (OR = 4.760, 95% CI: 1.981-11.456, p < 0.001) were positively correlated with but advanced age (OR = 0.756, 95% CI: 0.645-0.886, p = 0.001) negatively with opening of collateral circulation. CONCLUSIONS Poor opening of collateral circulation was likely to mediate the prediction of NTIS for prognosis of LAA-CI patients.
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Affiliation(s)
- Xiao-Feng Dong
- Neurology Department, Suzhou Municipal Hospital, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Fan-Zhen Kong
- Department of Psychology, Suzhou Guangji Hospital, Suzhou Psychiatric Hospital, Suzhou, China
| | - Ming-Qiang Shen
- Neurology Department, Suzhou Municipal Hospital, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Jiang Huang
- Ophthalmology Department, Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Zong-En Gao
- Neurology Department, Shengli Oilfield Central Hospital, Suzhou, China
| | - Qian-Zhu Guo
- Neurology Department, Suzhou Municipal Hospital, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Zhong Zhao
- Neurology Department, Suzhou Municipal Hospital, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Wei-Feng Luo
- Neurology Department, Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Qing-Zhang Cheng
- Neurology Department, Suzhou Municipal Hospital, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Guan-Hui Wu
- Neurology Department, Suzhou Municipal Hospital, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
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Hindman BJ. Anesthetic Management of Emergency Endovascular Thrombectomy for Acute Ischemic Stroke, Part 1: Patient Characteristics, Determinants of Effectiveness, and Effect of Blood Pressure on Outcome. Anesth Analg 2019; 128:695-705. [PMID: 30883415 DOI: 10.1213/ane.0000000000004044] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In the United States, stroke ranks fifth among all causes of death and is the leading cause of serious long-term disability. The 2018 American Heart Association stroke care guidelines consider endovascular thrombectomy to be the standard of care for patients who have acute ischemic stroke in the anterior circulation when arterial puncture can be made within 6 hours of symptom onset or within 6-24 hours of symptom onset when specific eligibility criteria are satisfied. The aim of this 2-part review is to provide practical perspective on the clinical literature regarding anesthesia care of patients treated with endovascular thrombectomy. Part 1 (this article) reviews the development of endovascular thrombectomy and the determinants of endovascular thrombectomy effectiveness irrespective of method of anesthesia. The first aim of part 1 is to explain why rapid workflow and maintenance of blood pressure are necessary to help support the ischemic brain until, as a result of endovascular thrombectomy, reperfusion is accomplished. The second aim of part 1, understanding the nonanesthesia factors determining endovascular thrombectomy effectiveness, is necessary to identify numerous biases present in observational reports regarding anesthesia for endovascular thrombectomy. With this background, in part 2 (the companion to this article), the observational literature is briefly summarized, largely to identify its weaknesses, but also to develop hypotheses derived from it that have been recently tested in 3 randomized clinical trials of sedation versus general anesthesia for endovascular thrombectomy. In part 2, these 3 trials are reviewed both from a functional outcomes perspective (meta-analysis) and a methodological perspective, providing specifics regarding anesthesia and hemodynamic management. Part 2 concludes with a pragmatic approach to anesthesia decision making (sedation versus general anesthesia) and acute phase anesthesia management of patients treated with endovascular thrombectomy.
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Affiliation(s)
- Bradley J Hindman
- From the Department of Anesthesia, The University of Iowa, Roy J. and Lucille A. Carver College of Medicine, Iowa City, Iowa
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Collateral Vessels Have Unique Endothelial and Smooth Muscle Cell Phenotypes. Int J Mol Sci 2019; 20:ijms20153608. [PMID: 31344780 PMCID: PMC6695737 DOI: 10.3390/ijms20153608] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 07/11/2019] [Accepted: 07/19/2019] [Indexed: 12/15/2022] Open
Abstract
Collaterals are unique blood vessels present in the microcirculation of most tissues that, by cross-connecting a small fraction of the outer branches of adjacent arterial trees, provide alternate routes of perfusion. However, collaterals are especially susceptible to rarefaction caused by aging, other vascular risk factors, and mouse models of Alzheimer’s disease—a vulnerability attributed to the disturbed hemodynamic environment in the watershed regions where they reside. We examined the hypothesis that endothelial and smooth muscle cells (ECs and SMCs, respectively) of collaterals have specializations, distinct from those of similarly-sized nearby distal-most arterioles (DMAs) that maintain collateral integrity despite their continuous exposure to low and oscillatory/disturbed shear stress, high wall stress, and low blood oxygen. Examination of mouse brain revealed the following: Unlike the pro-inflammatory cobble-stoned morphology of ECs exposed to low/oscillatory shear stress elsewhere in the vasculature, collateral ECs are aligned with the vessel axis. Primary cilia, which sense shear stress, are present, unexpectedly, on ECs of collaterals and DMAs but are less abundant on collaterals. Unlike DMAs, collaterals are continuously invested with SMCs, have increased expression of Pycard, Ki67, Pdgfb, Angpt2, Dll4, Ephrinb2, and eNOS, and maintain expression of Klf2/4. Collaterals lack tortuosity when first formed during development, but tortuosity becomes evident within days after birth, progresses through middle age, and then declines—results consistent with the concept that collateral wall cells have a higher turnover rate than DMAs that favors proliferative senescence and collateral rarefaction. In conclusion, endothelial and SMCs of collaterals have morphologic and functional differences from those of nearby similarly sized arterioles. Future studies are required to determine if they represent specializations that counterbalance the disturbed hemodynamic, pro-inflammatory, and pro-proliferative environment in which collaterals reside and thus mitigate their risk factor-induced rarefaction.
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Kim HJ, Lee SJ, Jung KO. Association of Concomitant Intracranial Atherosclerotic Stenosis with Collateral Status in Patients with Emergent Large Vessel Occlusion. World Neurosurg 2019; 128:e1102-e1108. [PMID: 31103756 DOI: 10.1016/j.wneu.2019.05.073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 05/07/2019] [Accepted: 05/08/2019] [Indexed: 12/26/2022]
Abstract
BACKGROUND Concomitant atherosclerotic stenoses are commonly encountered in emergent large vessel occlusion. This study attempted to prove whether or not the pattern of atherosclerotic stenosis other than symptomatic occlusion is associated with pretreatment collateral status among patients with emergent large vessel occlusion. METHODS The study included 115 patients with middle cerebral artery territory infarct within 6 hours of stroke onset who were considered for endovascular revascularization therapy. All patients underwent pretreatment conventional computed tomography angiography using a 128-detector high-definition computed tomography scanner. Based on maximum intensity projection images, ≤50% filling of the occluded territory was considered to indicate poor collaterals, whereas >50% filling was considered to indicate good collaterals. Finding of >50% stenosis on computed tomography angiography was considered significant, and the stenosis patterns were classified into intracranial atherosclerotic stenosis and extracranial atherosclerotic stenosis according to the location of the stenosis. RESULTS All patients had symptomatic M1 (47.8%), M2 (20.0%), or internal carotid artery (32.2%) occlusion. There were 44 patients with poor collaterals (38.3%) and 71 patients with good collaterals (61.7%). Univariate analysis revealed that poor collateral status was associated with advanced age (≥65 years), hypertension, high National Institutes of Health Stroke Scale score, symptomatic internal carotid artery occlusion, and concomitant atherosclerotic stenosis. Multivariate analysis showed that poor collateral circulation was associated with concomitant intracranial atherosclerotic stenosis and symptomatic internal carotid artery occlusion (vs. a more distal occlusion). CONCLUSIONS Concomitant intracranial atherosclerotic stenosis other than symptomatic occlusion might be a crucial factor associated with pretreatment collateral status among patients with emergent large vessel occlusion.
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Affiliation(s)
- Hyung Jun Kim
- Department of Neurology, Soonchunhyang University Bucheon Hospital, Gyeonggi-do, South Korea
| | - Seung-Jae Lee
- Department of Neurology, Soonchunhyang University Bucheon Hospital, Gyeonggi-do, South Korea.
| | - Kyu-On Jung
- Department of Neurology, Soonchunhyang University Bucheon Hospital, Gyeonggi-do, South Korea
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Fujita K, Tanaka K, Yamagami H, Ide T, Ishiyama H, Sonoda K, Satow T, Takahashi JC, Ihara M, Koga M, Yokota T, Toyoda K. Detrimental Effect of Chronic Hypertension on Leptomeningeal Collateral Flow in Acute Ischemic Stroke. Stroke 2019; 50:1751-1757. [PMID: 31233392 DOI: 10.1161/strokeaha.119.025142] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Background and Purpose- We aimed to evaluate the effect of chronic hypertension on acute leptomeningeal collateral flow in patients with large-vessel ischemic stroke using digital subtraction angiography, which is the gold standard for the assessment of collateral circulation. Methods- Of the consecutive ischemic stroke patients from October 2011 to December 2017 seen in our institution, patients with acute occlusion of the M1 segment of the middle cerebral artery confirmed on initial digital subtraction angiography were enrolled. Chronic hypertension was defined as its documentation before the index stroke or as the administration of antihypertensive medications before onset. Angiographic leptomeningeal collateral flow was evaluated according to the American Society of Interventional and Therapeutic Neuroradiology/Society of Interventional Radiology Collateral Flow Grading System and dichotomized the findings into excellent (grade 3-4) or poor (grade 0-2) collateral status for analysis. Results- Of the 3759 consecutive ischemic stroke patients, 100 patients were analyzed. Thirty-nine patients (39%) had poor collateral status. Patients with poor collateral status were older, more frequently male, and had chronic hypertension more frequently, shorter time from onset to angiography, and higher admission systolic blood pressure than those with excellent collateral status. Multivariable logistic analysis with prespecified covariates showed a significantly positive association between chronic hypertension and poor collateral status (odds ratio, 2.80; 95% CI, 1.08-7.70; P=0.034). This association was independent of admission systolic blood pressure. The proportion of patients with poor collateral status increased in a stepwise manner in patients without chronic hypertension, hypertensive patients with premorbid antihypertensive medications, and hypertensive patients without antihypertensive medications ( P for trend <0.001). Conclusions- Our data suggest that chronic hypertension has a detrimental effect on acute leptomeningeal collateral flow in patients with cerebral large-vessel occlusion. Clinical Trial Registration- URL: https://www.clinicaltrials.gov . Unique identifier: NCT02251665.
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Affiliation(s)
- Kyohei Fujita
- From the Department of Cerebrovascular Medicine (K.F., T.I., M.K., K. Toyoda), National Cerebral and Cardiovascular Center, Suita, Japan.,Department of Neurology and Neurological Science, Tokyo Medical and Dental University, Japan (K.F., T.Y.)
| | - Kanta Tanaka
- Division of Stroke Care Unit (K. Tanaka, H.Y., K.S.), National Cerebral and Cardiovascular Center, Suita, Japan
| | - Hiroshi Yamagami
- Division of Stroke Care Unit (K. Tanaka, H.Y., K.S.), National Cerebral and Cardiovascular Center, Suita, Japan
| | - Toshihiro Ide
- From the Department of Cerebrovascular Medicine (K.F., T.I., M.K., K. Toyoda), National Cerebral and Cardiovascular Center, Suita, Japan.,Division of Neurology, Department of Internal Medicine, Faculty of Medicine, Saga University, Japan (T.I.)
| | - Hiroyuki Ishiyama
- Department of Neurology (H.I., M.I.), National Cerebral and Cardiovascular Center, Suita, Japan
| | - Kazutaka Sonoda
- Division of Stroke Care Unit (K. Tanaka, H.Y., K.S.), National Cerebral and Cardiovascular Center, Suita, Japan
| | - Tetsu Satow
- Department of Neurosurgery (T.S., J.C.T.), National Cerebral and Cardiovascular Center, Suita, Japan
| | - Jun C Takahashi
- Department of Neurosurgery (T.S., J.C.T.), National Cerebral and Cardiovascular Center, Suita, Japan
| | - Masafumi Ihara
- Department of Neurology (H.I., M.I.), National Cerebral and Cardiovascular Center, Suita, Japan
| | - Masatoshi Koga
- From the Department of Cerebrovascular Medicine (K.F., T.I., M.K., K. Toyoda), National Cerebral and Cardiovascular Center, Suita, Japan
| | - Takanori Yokota
- Department of Neurology and Neurological Science, Tokyo Medical and Dental University, Japan (K.F., T.Y.)
| | - Kazunori Toyoda
- From the Department of Cerebrovascular Medicine (K.F., T.I., M.K., K. Toyoda), National Cerebral and Cardiovascular Center, Suita, Japan
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Nolte ED, Nolte KA, Yan SS. Anxiety and task performance changes in an aging mouse model. Biochem Biophys Res Commun 2019; 514:246-251. [PMID: 31029428 DOI: 10.1016/j.bbrc.2019.04.049] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 04/07/2019] [Indexed: 12/13/2022]
Abstract
Due to the increasing focus on aging as an important risk factor for many serious diseases and an emphasis on animal models that have translational value, an increasing number of animal models are being aged. Animal behavior tests can be used to assess effects of aging in mouse models. Female mice begin exhibiting anxiety-like behaviors at 12 months of age which become more serious at 24 months, while males exhibit no age-induced anxiety-like behaviors. Males and females equally demonstrate a failure of daily task performance at 24 months. Despite these cognitive changes, the mice do not show changes in gross motor function. These results suggest cognitive impairment in non-genetically modified aging mice.
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Affiliation(s)
- Erika D Nolte
- Department of Pharmacology and Toxicology, Higuchi Bioscience Center, University of Kansas, Lawrence, KS 66047, USA
| | - Keith A Nolte
- Department of Pharmacology and Toxicology, Higuchi Bioscience Center, University of Kansas, Lawrence, KS 66047, USA
| | - Shirley ShiDu Yan
- Department of Pharmacology and Toxicology, Higuchi Bioscience Center, University of Kansas, Lawrence, KS 66047, USA.
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Genetic and Environmental Contributions to Variation in the Posterior Communicating Collaterals of the Circle of Willis. Transl Stroke Res 2019; 10:189-203. [PMID: 29589286 DOI: 10.1007/s12975-018-0626-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 03/14/2018] [Accepted: 03/16/2018] [Indexed: 02/07/2023]
Abstract
Variation in blood flow mediated by the posterior communicating collateral arteries (PComs) contributes to variation in the severity of tissue injury in obstructive disease. Evidence in animals and humans indicates that differences in the extent of PComs, i.e., their anatomic lumen diameter and whether they are present bilaterally, unilaterally, or absent, are a major factor. These differences arise during development since they are present at birth. However, the causal mechanisms are unknown. We used angiography after maximal dilation to examine involvement of genetic, environmental, and stochastic factors. The extent of PComs varied widely among seven genetically diverse strains of mice. Like pial collaterals in the microcirculation, aging and hypertension reduced PCom diameter, while in contrast, obesity, hyperlipidemia, metabolic syndrome, and diabetes mellitus had no effect. Naturally occurring intrauterine growth restriction had no effect on extent of PCom or pial collaterals in the adult. The number and diameter of PComs evidenced much larger apparent stochastic-dependent variation than pial collaterals. In addition, both PComs underwent flow-mediated outward remodeling after unilateral permanent MCA occlusion that varied with genetic background and was greater on the ipsilesional side. These findings indicate that variation in the number and diameter of PCom collateral arteries arises from stochastic factors and naturally occurring genetic variants that differ from those that cause variation in pial collateral arterioles. Environmental factors also contribute: aging and hypertension reduce PCom diameter. Our results suggest possible sources of variation of PComs in humans and provide information relevant when studying mouse models of occlusive cerebrovascular disease.
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Akhoundzadeh K, Vakili A, Sameni HR. Bone Marrow Stromal Cells With Exercise and Thyroid Hormone Effect on Post-Stroke Injuries in Middle-aged Mice. Basic Clin Neurosci 2019; 10:73-84. [PMID: 31031895 PMCID: PMC6484183 DOI: 10.32598/bcn.9.10.355] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 01/25/2018] [Accepted: 06/12/2018] [Indexed: 12/22/2022] Open
Abstract
Introduction: Based on our previous findings, the treatment of stem cells alone or in combination with thyroid hormone (T3) and mild exercise could effectively reduce the risk of stroke damage in young mice. However, it is unclear whether this treatment is effective in aged or middle-aged mice. Therefore, this study designed to assess whether combination of Bone Marrow Stromal Cells (BMSCs) with T3 and mild treadmill exercise can decrease stroke complications in middle-aged mice. Methods: Under laser Doppler flowmetry monitoring, transient focal cerebral ischemia was produced by right Middle Cerebral Artery Occlusion (MCAO) for 45 min followed by 7 days of reperfusion in middle-aged mice. BMSCs (1×105) were injected into the right cerebral ventricle 24 h after MCAO, followed by daily injection of triiodothyronine (T3) (20 μg/100 g/d SC) and 6 days of running on a treadmill. Infarct size, neurological function, apoptotic cells and expression levels of Glial Fibrillary Acidic Protein (GFAP) were evaluated 1 week after stroke. Results: Post-ischemic treatment with BMSCs or with T3 and or mild treadmill exercise alone or in combination did not significantly change neurological function, infarct size, and apoptotic cells 7 days after ischemia in middle-aged mice (P>0.05). However, the expression of GFAP significantly reduced after treatment with BMSCs and or T3 (P<0.01). Conclusion: Our findings indicate that post-stroke treatment BMSCs with exercise and thyroid hormone cannot reverse neuronal damage 7 days after ischemia in middle-aged mice. These findings further support that age is an important variable in stroke treatment
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Affiliation(s)
- Kobra Akhoundzadeh
- Physiology Research Center, Semnan University of Medical Sciences, Semnan, Iran.,Department of Nursing, School of Nursing & Midwifery, Qom University of Medical Sciences, Qom, Iran
| | - Abedin Vakili
- Physiology Research Center, Semnan University of Medical Sciences, Semnan, Iran
| | - Hamid Reza Sameni
- Nervous System Stems Cells Research Center, Department of Anatomical Sciences, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
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Mouse models of Alzheimer's disease cause rarefaction of pial collaterals and increased severity of ischemic stroke. Angiogenesis 2019; 22:263-279. [PMID: 30519973 PMCID: PMC6475514 DOI: 10.1007/s10456-018-9655-0] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Accepted: 11/20/2018] [Indexed: 01/26/2023]
Abstract
Vascular dysfunction contributes to the progression and severity of Alzheimer's disease (AD). Patients with AD also sustain larger infarctions after ischemic stroke; however, the responsible mechanisms are unknown. Pial collaterals are the primary source of protection in stroke. Unfortunately, natural aging and other vascular risk factors cause a decline in collateral number and diameter (rarefaction) and an increase in stroke severity. Herein, we tested the hypothesis that AD accelerates age-induced collateral rarefaction and examined potential underlying mechanisms. Triple and double transgenic mouse models of AD both sustained collateral rarefaction by 8 months of age, well before the onset of rarefaction caused by aging alone (16 months of age). Rarefaction, which did not progress further at 18 months of age, was accompanied by a twofold increase in infarct volume after MCA occlusion. AD did not induce rarefaction of similarly sized pial arterioles or penetrating arterioles. Rarefaction was minimal and occurred only at 18 months of age in a parenchymal vascular amyloid-beta model of AD. Rarefaction was not associated with amyloid-beta deposition on collaterals or pial arteries, nor was plaque burden or CD11b+ cell density greater in brain underlying the collateral zones versus elsewhere. However, rarefaction was accompanied by increased markers of oxidative stress, inflammation, and aging of collateral endothelial and mural cells. Moreover, rarefaction was lessened by deletion of CX3CR1 and prevented by overexpression of eNOS. These findings demonstrate that mouse models of AD promote rarefaction of pial collaterals and implicate inflammation-induced accelerated aging of collateral wall cells. Strategies that reduce vascular inflammation and/or increase nitric oxide may preserve collateral function.
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Post-stroke administration of omega-3 polyunsaturated fatty acids promotes neurovascular restoration after ischemic stroke in mice: Efficacy declines with aging. Neurobiol Dis 2018; 126:62-75. [PMID: 30218758 DOI: 10.1016/j.nbd.2018.09.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 09/07/2018] [Accepted: 09/11/2018] [Indexed: 01/11/2023] Open
Abstract
Post-stroke treatment with omega-3 polyunsaturated fatty acids (n-3 PUFAs) may be a promising therapy in young animals but this has not been tested in aged subjects, a population at most risk of ischemic stroke. Herein we examined the therapeutic efficacy of n-3 PUFAs after distal middle cerebral artery occlusion (dMCAO) in young (10-12 weeks old) and aged (18 months old) mice. Post-ischemic mice were randomly assigned to 4 groups that received: 1) regular food with low content of n-3 PUFAs, 2) intraperitoneal docosahexaenoic acid (DHA, a major component of n-3 PUFAs) injections, 3) Fish oil (FO, containing high concentration of n-3 PUFAs) dietary supplement, or 4) combined treatment with DHA and FO dietary supplement. Long-term neurorestoration induced by n-3 PUFA post-stroke administration and its underlying mechanism(s) were analyzed up to 35 days after dMCAO. Aged mice showed more severe neurological deficits than young mice after dMCAO with histological lesions extended to the striatum. Notably, post-stroke treatment with combined DHA injections and FO dietary supplementation was more effective in reducing brain injury and improving sensorimotor function in aged mice than either treatment alone, albeit to a lesser extent than in the young mice. Unlike the improvement in spatial cognitive function observed in young mice, the combined treatment regimen failed to improve cognitive function in aged mice. The reduction in stroke-induced neurological deficits with n-3 PUFA post-treatment was associated with enhanced angiogenesis, oligodendrogenesis, neuron survival and white matter restoration. Together, these results indicate that the neurological benefits of n-3 PUFA administration after stroke extend to older animals and are associated with improved neuronal survival and brain remodeling, therefore suggesting that post-stroke administration of n-3 PUFAs is a viable clinically relevant treatment option against stroke.
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Barral M, Lassalle L, Dargazanli C, Mazighi M, Redjem H, Blanc R, Rodesch G, Lapergue B, Piotin M. Predictors of favorable outcome after mechanical thrombectomy for anterior circulation acute ischemic stroke in octogenarians. J Neuroradiol 2018; 45:211-216. [PMID: 29470997 DOI: 10.1016/j.neurad.2018.01.055] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 12/04/2017] [Accepted: 01/14/2018] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Mechanical thrombectomy for anterior circulation large vessel occlusion (LVO) improves functional outcome at three months. This therapeutic approach is the new gold standard, with a benefit being also observed in elderly patients. However, data are limited in this heterogeneous and fragile population. The objectives of this study were, first, to describe outcome after mechanical thrombectomy in a representative group of patients over 80. Second, to evaluate factors associated with a favorable functional outcome after thrombectomy for anterior circulation LVO in elderly patients (aged≥80 years). METHODS A total of 169 patients with anterior circulation LVO referred for an endovascular treatment were included. Primary outcome evaluated functional outcome at three months. Multivariable analysis was performed to identify prognostic factors in elderly patients with pre-stroke mRS≤3. RESULTS Overall, 25.34% of patients (43/169) were functionally independent at three months (mRS≤2) and 16.57% (28/169) had a moderate functional disability (mRS=3). Mortality rate was 33.14% (56/169). At 24h, 7.1% of patients (12/169) had symptomatic hemorrhage. Male gender (P=0.033), low initial NIHSS (P=0.037), higher DWI-ASPECTS (P=0.022) and use of intravenous thrombolysis (IVT) (P=0.0193) were associated with a better functional outcome. CONCLUSIONS There is no reason to withhold mechanical thrombectomy on the basis of age alone. Small infarct core, low NIHSS, male gender and use of IVT are associated with a better functional outcome.
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Affiliation(s)
- Matthias Barral
- Department of Interventional Neuroradiology, Rothschild Foundation, 25 rue Manin, 75940 Paris, France.
| | - Louis Lassalle
- Department of Radiology, Hopital Antoine Beclere, 157 Rue de la Porte de Trivaux, 92140 Clamart, France
| | - Cyril Dargazanli
- Department of Interventional Neuroradiology, Rothschild Foundation, 25 rue Manin, 75940 Paris, France
| | - Mikael Mazighi
- Department of Interventional Neuroradiology, Rothschild Foundation, 25 rue Manin, 75940 Paris, France; Laboratory of Vascular Translational Science, INSERM U 1148, CHU Bichat, Bâtiment Inserm 46, rue Henri Huchard, 75877 Paris Cedex 18, France
| | - Hocine Redjem
- Department of Interventional Neuroradiology, Rothschild Foundation, 25 rue Manin, 75940 Paris, France
| | - Raphael Blanc
- Department of Interventional Neuroradiology, Rothschild Foundation, 25 rue Manin, 75940 Paris, France
| | - Georges Rodesch
- Department of Diagnostic and Interventional Neuroradiology, Hopital Foch, 40, Rue Worth, 92150 Suresnes, France
| | - Bertrand Lapergue
- Division of Neurology, Stroke Center, Hopital Foch, 40, Rue Worth, 92150 Suresnes, France
| | - Michel Piotin
- Department of Interventional Neuroradiology, Rothschild Foundation, 25 rue Manin, 75940 Paris, France
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Leng X, Lan L, Ip HL, Fan F, Ma SH, Ma K, Liu H, Yan Z, Liu J, Abrigo J, Soo YOY, Liebeskind DS, Wong KS, Leung TW. Translesional pressure gradient and leptomeningeal collateral status in symptomatic middle cerebral artery stenosis. Eur J Neurol 2017; 25:404-410. [PMID: 29171118 DOI: 10.1111/ene.13521] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 11/20/2017] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND PURPOSE Leptomeningeal collateral (LMC) status governs the prognosis of large artery occlusive stroke, although factors determining LMC status are not fully elucidated. The aim was to investigate metrics affecting LMC status in such patients by using computational fluid dynamics (CFD) models based on computed tomography angiography (CTA). METHODS In this cross-sectional study, patients with recent ischaemic stroke or transient ischaemic attack attributed to atherosclerotic M1 middle cerebral artery (MCA) stenosis (50%-99%) were recruited. Demographic, clinical and imaging data of these patients were collected. Ipsilesional LMC status was graded as good or poor by assessing the laterality of anterior and posterior cerebral arteries in CTA. A CFD model based on CTA was constructed to reflect focal hemodynamics in the distal internal carotid artery, M1 MCA and A1 anterior cerebral artery. Pressure gradients were calculated across culprit MCA stenotic lesions in CFD models. Predictors for good LMC status were sought in univariate and multivariate analyses. RESULTS Amongst the 85 patients enrolled (mean age 61.5 ± 10.9 years), 38 (44.7%) had good ipsilesional LMC status. The mean pressure gradient across MCA lesions was 14.8 ± 18.1 mmHg. Advanced age (P = 0.030) and a larger translesional pressure gradient (P = 0.029) independently predicted good LMCs. A lower fasting blood glucose level also showed a trend for good LMCs (P = 0.058). CONCLUSIONS Our study suggested a correlation between translesional pressure gradient and maturation of LMCs in intracranial atherosclerotic disease. Further studies with more exquisite and dynamic monitoring of cerebral hemodynamics and LMC evolution are needed to verify the current findings.
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Affiliation(s)
- X Leng
- Division of Neurology, Department of Medicine and Therapeutics, Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China.,Shenzhen Research Institute, Chinese University of Hong Kong, Shenzhen, China
| | - L Lan
- Division of Neurology, Department of Medicine and Therapeutics, Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - H L Ip
- Division of Neurology, Department of Medicine and Therapeutics, Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - F Fan
- Division of Neurology, Department of Medicine and Therapeutics, Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - S H Ma
- Division of Neurology, Department of Medicine and Therapeutics, Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - K Ma
- Division of Neurology, Department of Medicine and Therapeutics, Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - H Liu
- Division of Neurology, Department of Medicine and Therapeutics, Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China.,Department of Imaging and Interventional Radiology, Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Z Yan
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - J Liu
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - J Abrigo
- Department of Imaging and Interventional Radiology, Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Y O Y Soo
- Division of Neurology, Department of Medicine and Therapeutics, Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - D S Liebeskind
- Neurovascular Imaging Research Core, Department of Neurology, University of California, Los Angeles, CA, USA
| | - K S Wong
- Division of Neurology, Department of Medicine and Therapeutics, Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - T W Leung
- Division of Neurology, Department of Medicine and Therapeutics, Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
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Kulhari A, Dorn E, Pace J, Alambyan V, Chen S, Wu OC, Rizvi M, Hammond A, Ramos-Estebanez C. Acute Ischemic Pediatric Stroke Management: An Extended Window for Mechanical Thrombectomy? Front Neurol 2017; 8:634. [PMID: 29238322 PMCID: PMC5712569 DOI: 10.3389/fneur.2017.00634] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 11/13/2017] [Indexed: 11/26/2022] Open
Abstract
Ischemic stroke is a rare condition to afflict the pediatric population. Congenital cardiomyopathy represents one of several possible etiologies in children. We report a 9-year-old boy who developed right middle cerebral artery stroke secondary to primary restrictive cardiomyopathy. In the absence of pediatric guidelines, the child met adult criteria for mechanical thrombectomy given the small core infarct and large penumbra. The literature suggests children may benefit from mechanical thrombectomy in carefully selected cases. Our patient exemplifies specific circumstances in which acute stroke therapy with thrombolysis and thrombectomy may be safe.
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Affiliation(s)
- Ashish Kulhari
- Department of Neurology, Neurological Institute, University Hospitals, Cleveland, OH, United States.,Department of Neurological Surgery, Neurological Institute, University Hospitals, Cleveland, OH, United States
| | - Elizabeth Dorn
- Department of Pediatrics, Rainbow Babies and Children's Hospital, Cleveland, OH, United States
| | - Jonathan Pace
- Department of Neurology, Neurological Institute, University Hospitals, Cleveland, OH, United States.,Department of Neurological Surgery, Neurological Institute, University Hospitals, Cleveland, OH, United States
| | - Vilakshan Alambyan
- Department of Neurology, Neurological Institute, University Hospitals, Cleveland, OH, United States.,Department of Neurological Surgery, Neurological Institute, University Hospitals, Cleveland, OH, United States
| | - Stephanie Chen
- Department of Physiology, Case Western Reserve University, Cleveland, OH, United States
| | - Osmond C Wu
- Department of Neurology, Neurological Institute, University Hospitals, Cleveland, OH, United States.,Department of Neurological Surgery, Neurological Institute, University Hospitals, Cleveland, OH, United States
| | - Macym Rizvi
- Department of Neurology, Neurological Institute, University Hospitals, Cleveland, OH, United States.,Department of Neurological Surgery, Neurological Institute, University Hospitals, Cleveland, OH, United States
| | - Anthony Hammond
- Department of Emergency Medicine, University Hospitals, Cleveland, OH, United States
| | - Ciro Ramos-Estebanez
- Department of Neurology, Neurological Institute, University Hospitals, Cleveland, OH, United States.,Department of Neurological Surgery, Neurological Institute, University Hospitals, Cleveland, OH, United States
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Abstract
PURPOSE We measured anterior cerebral artery (ACA)-middle cerebral artery (MCA) and posterior cerebral artery (PCA)-MCA pial filling on single-phase computed tomography angiograms (sCTAs) in acute ischemic stroke and correlate with the CTA-based Massachusetts General Hospital (MGH) and digital subtraction angiography (DSA)-based American Society of Interventional and Therapeutic Neuroradiology (ASITN) score. METHODS Patients with acute stroke and M1 MCA±intracranial internal carotid artery occlusion on baseline CTA were included. Baseline sCTA was assessed for phase of image acquisition. An evaluator assessed collaterals using the Calgary Collateral (CC) Score (measures pial arterial filling in ACA-MCA and PCA-MCA regions separately), the CTA-based MGH score, and on DSA using the ASITN score. Infarct volumes were measured on 24- to 48-hour magnetic resonance imaging/ computed tomography. RESULTS Of 106 patients, baseline sCTA was acquired in early arterial phase in 9.9%, peak arterial in 50.7%, equilibrium in 32.4%, early venous in 5.6%, and late venous in 1.4%. Variance in ACA-MCA collaterals explained only 32% of variance in PCA-MCA collaterals on the CC score (Spearman's correlation coefficient rho [rho]=0.56). Correlation between ACA-MCA collaterals and the MGH score was strong (rho=0.8); correlation between PCA-MCA collaterals and this score was modest (rho=0.54). Correlation between ACA-MCA collaterals and the ASITN score was modest (n=53, rho=0.43); and correlation between PCA-MCA collaterals and ASITN score was poor (rho=0.33). Of the CTA-based scores, the CC Score (Akaike [AIC] 1022) was better at predicting follow-up infarct volumes than was the MGH score (AIC 1029). CONCLUSION Collateral assessments in acute ischemic stroke are best done using CTA with temporal resolution and by assessing regional variability. ACA-MCA and MCA-PCA collaterals should be evaluated separately.
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de Havenon A, Haynor DR, Tirschwell DL, Majersik JJ, Smith G, Cohen W, Andre JB. Association of Collateral Blood Vessels Detected by Arterial Spin Labeling Magnetic Resonance Imaging With Neurological Outcome After Ischemic Stroke. JAMA Neurol 2017; 74:453-458. [PMID: 28192548 DOI: 10.1001/jamaneurol.2016.4491] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Importance Robust collateral blood vessels have been associated with better neurologic outcome following acute ischemic stroke (AIS). The most commonly used methods for identifying collaterals are contrast-based angiographic imaging techniques, which are not possible in all patients after AIS. Objective To assess the association between the presence of collateral vessels identified using arterial spin labeling (ASL) magnetic resonance imaging, a technique that does not require exogenous administration of contrast, and neurologic outcome in patients after AIS. Design, Setting, and Participants This retrospective cohort study examined 38 patients after AIS admitted to a tertiary academic medical center between 2012 and 2014 who underwent MRI with ASL. Main Outcomes and Measures According to a prespecified hypothesis, ASL images were graded for the presence of collaterals by 2 neuroradiologists. Modified Rankin Scale (mRS) scores at discharge and other composite data were abstracted from the medical record by a neurologist blinded to radiologic data. Results Of the 38 patients, 19 (50.0%) were male, and the mean (SD) age was 61 (20) years. In 25 of 38 patients (65.8%), collaterals were detected using ASL, which were significantly associated with both a good outcome (mRS score of 0-2 at discharge; P = .02) and a 1-point decrease in mRS score at discharge (odds ratio, 6.4; 95% CI, 1.7-23.4; P = .005). In a multivariable ordinal logistic regression model, controlling for admission National Institutes of Health Stroke Scale score, history of atrial fibrillation, premorbid mRS score, and stroke parent artery status, there was a strong association between the presence of ASL collaterals and a 1-point decrease in the mRS score at discharge (odds ratio, 5.1; 95% CI, 1.2-22.1; P = .03). Conclusions and Relevance Following AIS, the presence of ASL collaterals is strongly associated with better neurological outcome at hospital discharge. This novel association between ASL collaterals and improved neurologic outcome may help guide prognosis and management, particularly in patients who are unable to undergo contrast-based radiological studies.
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Affiliation(s)
| | - David R Haynor
- Department of Radiology, University of Washington, Seattle
| | | | | | - Gordon Smith
- Department of Neurology, University of Utah, Salt Lake City
| | - Wendy Cohen
- Department of Radiology, University of Washington, Seattle
| | - Jalal B Andre
- Department of Radiology, University of Washington, Seattle
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Hwang YH, Kim YW, Kang DH, Kim YS, Liebeskind DS. Impact of Baseline Ischemia on Outcome in Older Patients Undergoing Endovascular Therapy for Acute Ischemic Stroke. J Clin Neurol 2017; 13:162-169. [PMID: 28271641 PMCID: PMC5392458 DOI: 10.3988/jcn.2017.13.2.162] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 12/14/2016] [Accepted: 12/15/2016] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND AND PURPOSE The outcome for older stroke patients who undergo endovascular revascularization remains unsatisfactory. We aimed to determine the effect of the extent of baseline ischemia on outcome according to age, testing the hypothesis that the restorative capacity for recovery is only marginal in older patients. METHODS Two hundred and thirteen patients who underwent endovascular revascularization due to occlusion in the M1 segment of the middle cerebral artery (with or without internal carotid artery occlusions) were selected for analysis. Patients were categorized into three age groups: group A (<66 years), group B (66-75 years), and group C (>75 years). Using pretreatment diffusion-weighted imaging (DWI), the Alberta Stroke Program Early CT Score (ASPECTS) and lesion volume were independently measured and analyzed in relation to a favorable outcome. RESULTS A favorable outcome was achieved in 111 of 213 patients overall: in 60 of the 94 (63.8%) patients in group A, in 36 of the 70 (51.4%) patients in group B, and in 15 of the 49 (30.6%) patients in group C (p=0.001). In older stroke patients (group C), a DWI ASPECTS ≥9 and lesion volume ≤5 mL were found to predict a favorable outcome, which was more restrictive than the cutoffs for their younger counterparts (groups A and B; DWI ASPECTS ≥8 and lesion volume ≤20 mL). CONCLUSIONS The age-adjusted pretreatment DWI lesion volume and ASPECTS may represent useful surrogate markers for functional outcome according to age. The use of more-restrictive inclusion criteria for older stroke patients could be warranted, although larger studies are necessary to confirm these findings.
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Affiliation(s)
- Yang Ha Hwang
- Cerebrovascular Center, Kyungpook National University School of Medicine and Hospital, Daegu, Korea.,Department of Neurology, Kyungpook National University School of Medicine and Hospital, Daegu, Korea.
| | - Yong Won Kim
- Cerebrovascular Center, Kyungpook National University School of Medicine and Hospital, Daegu, Korea.,Department of Neurology, Kyungpook National University School of Medicine and Hospital, Daegu, Korea.,Department of Radiology, Kyungpook National University School of Medicine and Hospital, Daegu, Korea
| | - Dong Hun Kang
- Cerebrovascular Center, Kyungpook National University School of Medicine and Hospital, Daegu, Korea.,Department of Radiology, Kyungpook National University School of Medicine and Hospital, Daegu, Korea.,Department of Neurosurgery, Kyungpook National University School of Medicine and Hospital, Daegu, Korea
| | - Yong Sun Kim
- Cerebrovascular Center, Kyungpook National University School of Medicine and Hospital, Daegu, Korea.,Department of Neurosurgery, Kyungpook National University School of Medicine and Hospital, Daegu, Korea
| | - David S Liebeskind
- UCLA Stroke Center, University of California, Los Angeles, Los Angeles, CA, USA
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Zhu W, Xiao L, Lin M, Liu X, Yan B. Large-Vessel Occlusion Is Associated with Poor Outcome in Stroke Patients Aged 80 Years or Older Who Underwent Intravenous Thrombolysis. J Stroke Cerebrovasc Dis 2016; 25:2712-2716. [DOI: 10.1016/j.jstrokecerebrovasdis.2016.07.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 06/14/2016] [Accepted: 07/10/2016] [Indexed: 11/30/2022] Open
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The collateral circulation determines cortical infarct volume in anterior circulation ischemic stroke. BMC Neurol 2016; 16:206. [PMID: 27769189 PMCID: PMC5073932 DOI: 10.1186/s12883-016-0722-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 10/15/2016] [Indexed: 11/23/2022] Open
Abstract
Background Acute ischemic stroke (AIS) is a common neurological event that causes varying degrees of disability. AIS outcome varies considerably, from complete recovery to complete loss of tissue and function. This diversity is partly explained by the compensatory ability of the collateral circulation and the ensuing cerebral flow grade. The collateral flow to the anterior circulation largely supplies the cortical areas. The deep brain tissue is supplied by penetrating arteries and has little or no collateral supply. Although these brain compartments differ substantially in their collateral supply, there are no published data on the different effects the collateral circulation has on them. In addition, the influence of baseline collateral flow on the final infarct size following endovascular or reperfusion therapies remains unknown. This study was designed to determine the effect of the collateral circulation on cortical infarct volume and deep infarct volume, and to investigate the relation between the collateral grade, response to reperfusion therapy and clinical outcome. Methods We studied consecutive patients presenting to our medical center between April 2008 and April 2012 with AIS and anterior proximal artery occlusion. To be included patients had to undergo a computerized tomographic angiographic study within 12 h of symptom onset demonstrating the occlusion. Imaging data and clinical and laboratory values were extracted retrospectively from the original scans and medical records. Cortical infarct volume (CIV) and deep infarct volume (DIV) were calculated as well as collateral grade. Clinical outcome was assessed at discharge using the modified Rankin Scale (mRS). Results Of the 51 study patients, 13 were treated conservatively, 22 received intravenous recombinant tissue plasminogen activator, and 16 received intra-arterial thrombolysis. The collateral grading was similar for all three treatment groups. While there was a moderate inverse correlation between the collateral grade and CIV (Spearman’s rho = −0.49, P < 0.001), no comparable correlation was observed between the collateral grade and DIV (Spearman’s rho =0.03, P = 0.85). Clinical outcome was significantly related to CIV but not to DIV (Spearman’s rho =0.6 P < 0.001 versus Spearman’s rho =0.09 P = 0.54, respectively). The correlation between the collateral grade and CIV was greatly diminished and lost its statistical significance in patients with successful recanalization (Spearman’s rho = 0.2, p = 0.3). Conclusions Our data shows that the collateral circulation is an important determinant of cortical infarct volume and, in turn, of clinical outcome in the setting of anterior circulation major artery occlusion. Our findings further demonstrate the benefit of recanalization in sparing cortical tissue from injury. Additional studies are needed to determine the impact of stroke therapy on the final infarct volume in relation to the collateral grade.
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van Seeters T, Biessels GJ, Kappelle LJ, van der Graaf Y, Velthuis BK. Determinants of leptomeningeal collateral flow in stroke patients with a middle cerebral artery occlusion. Neuroradiology 2016; 58:969-977. [PMID: 27438804 PMCID: PMC5069303 DOI: 10.1007/s00234-016-1727-5] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 07/07/2016] [Indexed: 11/26/2022]
Abstract
Introduction Poor leptomeningeal collateral flow is related to worse clinical outcome in acute ischemic stroke, but the factors that determine leptomeningeal collateral patency are largely unknown. We explored the determinants of leptomeningeal collateral flow and assessed their effect on the relation between leptomeningeal collateral flow and clinical outcome. Methods We included 484 patients from the Dutch acute stroke study (DUST) with a middle cerebral artery (MCA) occlusion. The determinants of poor leptomeningeal collateral flow (≤50 % collateral filling) were identified with logistic regression. We calculated the relative risk (RR) of poor leptomeningeal collateral flow in relation to poor clinical outcome (90-day modified Rankin Scale 3–6) using Poisson regression and assessed whether the determinants of leptomeningeal collateral flow affected this relation. Results Leptomeningeal collateral flow was poor in 142 patients (29 %). In multivariable analyses, higher admission glucose level (odds ratio (OR) 1.1 per mmol/L increase (95 % CI 1.0–1.2)), a proximal MCA occlusion (OR 1.9 (95 % CI 1.3–3.0)), and an incomplete posterior circle of Willis (OR 1.7 (95 % CI 1.1–2.6)) were independently related to poor leptomeningeal collateral flow. Poor leptomeningeal collateral flow was related to poor clinical outcome (unadjusted RR 1.7 (95 % CI 1.4–2.0)), and this relation was not affected by the determinants of leptomeningeal collateral flow. Conclusion Our study shows that admission glucose level, a proximal MCA occlusion, and an incomplete ipsilateral posterior circle of Willis are determinants of leptomeningeal collateral flow that represent a combination of congenital, acquired, and acute factors. After adjustment for these determinants, leptomeningeal collateral flow remains related to clinical outcome.
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Affiliation(s)
- Tom van Seeters
- Department of Radiology, University Medical Center Utrecht, Heidelberglaan 100, HP E01 132, 3584 CX, Utrecht, The Netherlands.
| | - Geert Jan Biessels
- Department of Neurology, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
| | - L Jaap Kappelle
- Department of Neurology, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Yolanda van der Graaf
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Birgitta K Velthuis
- Department of Radiology, University Medical Center Utrecht, Heidelberglaan 100, HP E01 132, 3584 CX, Utrecht, The Netherlands
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Alves HCBR, Pacheco FT, Rocha AJ. Collateral blood vessels in acute ischemic stroke: a physiological window to predict future outcomes. ARQUIVOS DE NEURO-PSIQUIATRIA 2016; 74:662-70. [PMID: 27224313 DOI: 10.1590/0004-282x20160050] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Accepted: 02/08/2016] [Indexed: 12/20/2022]
Abstract
Collateral circulation is a physiologic pathway that protects the brain against ischemic injury and can potentially bypass the effect of a blocked artery, thereby influencing ischemic lesion size and growth. Several recent stroke trials have provided information about the role of collaterals in stroke pathophysiology, and collateral perfusion has been recognized to influence arterial recanalization, reperfusion, hemorrhagic transformation, and neurological outcomes after stroke. Our current aim is to summarize the anatomy and physiology of the collateral circulation and to present and discuss a comprehensible review of the related knowledge, particularly the effects of collateral circulation on the time course of ischemic injury and stroke severity, as well as imaging findings and therapeutic implications.
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Affiliation(s)
- Heitor Castelo Branco Rodrigues Alves
- Santa Casa de São Paulo, Faculdade de Ciências Médicas, Divisao de Neuroradiologia, São Paulo SP, Brasil;,Fleury Medicina e Saúde, Divisao de Neuroradiologia, São Paulo SP, Brasil
| | - Felipe Torres Pacheco
- Santa Casa de São Paulo, Faculdade de Ciências Médicas, Divisao de Neuroradiologia, São Paulo SP, Brasil;,Fleury Medicina e Saúde, Divisao de Neuroradiologia, São Paulo SP, Brasil
| | - Antonio J Rocha
- Santa Casa de São Paulo, Faculdade de Ciências Médicas, Divisao de Neuroradiologia, São Paulo SP, Brasil;,Fleury Medicina e Saúde, Divisao de Neuroradiologia, São Paulo SP, Brasil
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Chan SL, Sweet JG, Bishop N, Cipolla MJ. Pial Collateral Reactivity During Hypertension and Aging: Understanding the Function of Collaterals for Stroke Therapy. Stroke 2016; 47:1618-25. [PMID: 27103017 PMCID: PMC4878286 DOI: 10.1161/strokeaha.116.013392] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 03/22/2016] [Indexed: 11/21/2022]
Abstract
Supplemental Digital Content is available in the text. Background and Purpose— We investigated vasoactive properties of leptomeningeal arterioles (LMAs) under normotensive conditions and during hypertension and aging that are known to have poor collateral flow and little salvageable tissue. Methods— LMAs, identified as distal anastomotic arterioles connecting middle and anterior cerebral arteries, were studied isolated and pressurized from young (18 weeks) or aged (48 weeks) normotensive Wistar Kyoto (WKY18, n=14; WKY48, n=6) rats and spontaneously hypertensive rats (SHR18, n=16; SHR48, n=6). Myogenic tone and vasoactive responses to pressure as well as endothelial function and ion channel activity were measured. Results— LMAs from WKY18 had little myogenic tone at 40 mm Hg (8±3%) that increased in aged WKY48 (30±6%). However, LMAs from both WKY groups dilated to increased pressure and demonstrated little myogenic reactivity, a response that would be conducive to collateral flow. In contrast, LMAs from both SHR18 and SHR48 displayed considerable myogenic tone (56±8% and 43±7%; P<0.01 versus WKY) and constricted to increased pressure. LMAs from both WKY and SHR groups had similar basal endothelial nitric oxide and IK channel activity that opposed tone. However, dilation to sodium nitroprusside, diltiazem and 15 mmol/L KCl was impaired in LMAs from SHR18. Conclusions— This study shows for the first time that LMAs from young and aged SHR are vasoconstricted and have impaired vasodilatory responses that may contribute to greater perfusion deficit and little penumbral tissue. These results also suggest that therapeutic opening of pial collaterals is possible during middle cerebral artery occlusion to create penumbral tissue and prevent infarct expansion.
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Affiliation(s)
- Siu-Lung Chan
- From the Departments of Neurological Sciences (S.-L.C., J.G.S., N.B., M.J.C.), Obstetrics, Gynecology, and Reproductive Sciences (M.J.C.), and Pharmacology (M.J.C.), University of Vermont College of Medicine, Burlington
| | - Julie G Sweet
- From the Departments of Neurological Sciences (S.-L.C., J.G.S., N.B., M.J.C.), Obstetrics, Gynecology, and Reproductive Sciences (M.J.C.), and Pharmacology (M.J.C.), University of Vermont College of Medicine, Burlington
| | - Nicole Bishop
- From the Departments of Neurological Sciences (S.-L.C., J.G.S., N.B., M.J.C.), Obstetrics, Gynecology, and Reproductive Sciences (M.J.C.), and Pharmacology (M.J.C.), University of Vermont College of Medicine, Burlington
| | - Marilyn J Cipolla
- From the Departments of Neurological Sciences (S.-L.C., J.G.S., N.B., M.J.C.), Obstetrics, Gynecology, and Reproductive Sciences (M.J.C.), and Pharmacology (M.J.C.), University of Vermont College of Medicine, Burlington.
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Tong FC, Zhang X, Kempf DJ, Yepes MS, Connor-Stroud FR, Zola S, Howell L. An Enhanced Model of Middle Cerebral Artery Occlusion in Nonhuman Primates Using an Endovascular Trapping Technique. AJNR Am J Neuroradiol 2015; 36:2354-9. [PMID: 26381560 DOI: 10.3174/ajnr.a4448] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Accepted: 05/20/2015] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Current nonhuman primate stroke models are limited by either stroke variability or survivability. A new nonhuman primate stroke model was developed by using endovascular trapping techniques to limit collateral vessels with serial MR imaging and neurologic assessments. MATERIALS AND METHODS Eight adult rhesus monkeys (female, 7-13 years of age) underwent MR imaging and Spetzler neurologic assessment followed by endovascular stroke induction consisting of superselective endovascular placement of surgical silk sutures into the right MCA by using a trapping technique. Two initial subjects were euthanized immediately following postocclusion MR imaging. The subsequent 6 subjects recovered and underwent follow-up MR imaging and Spetzler neurologic assessments at 48 hours, with 4 being followed to 96 hours. Stroke infarct volumes were measured, and the longitudinal Spetzler clinical neurologic scores were assessed. The brain tissues were harvested and prepared with hematoxylin-eosin staining. RESULTS Focal permanent cerebral ischemia was induced in the targeted right MCA territory in all subjects. The volumes of the ischemic lesions at 6, 48, and 96 hours were 3.18 ± 1.007 mL (standard error of the mean) (n = 8), 6.70 ± 1.666 mL (standard error of the mean) (n = 6), and 7.23 ± 1.371 mL (standard error of the mean) (n = 4). For the survival animals, the immediate postsurgical Spetzler grading score improved from 60.7 at 24 hours to 68.7 at 48 hours. CONCLUSIONS We report a trapping modification to an established endovascular suture stroke model that yielded reproducible ischemia and clinically quantifiable neurologic deficits with no strokes in nontarget areas. This technique may be useful in evaluating translational stroke and penumbral imaging research in addition to preclinical testing of neuroprotective therapies.
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Affiliation(s)
- F C Tong
- From the Departments of Radiology and Neurosurgery (F.C.T.)
| | - X Zhang
- Yerkes National Primate Research Center (X.Z., D.J.K., F.R.C.-S, S.Z., L.H.), Emory University, Atlanta, Georgia
| | - D J Kempf
- Yerkes National Primate Research Center (X.Z., D.J.K., F.R.C.-S, S.Z., L.H.), Emory University, Atlanta, Georgia
| | | | - F R Connor-Stroud
- Yerkes National Primate Research Center (X.Z., D.J.K., F.R.C.-S, S.Z., L.H.), Emory University, Atlanta, Georgia
| | - S Zola
- Psychiatry and Behavioral Sciences (S.Z., L.H.), School of Medicine Yerkes National Primate Research Center (X.Z., D.J.K., F.R.C.-S, S.Z., L.H.), Emory University, Atlanta, Georgia Atlanta Veterans Affairs Medical Center (S.Z.), Decatur, Georgia
| | - L Howell
- Psychiatry and Behavioral Sciences (S.Z., L.H.), School of Medicine Yerkes National Primate Research Center (X.Z., D.J.K., F.R.C.-S, S.Z., L.H.), Emory University, Atlanta, Georgia
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Murray KN, Parry-Jones AR, Allan SM. Interleukin-1 and acute brain injury. Front Cell Neurosci 2015; 9:18. [PMID: 25705177 PMCID: PMC4319479 DOI: 10.3389/fncel.2015.00018] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 01/12/2015] [Indexed: 01/05/2023] Open
Abstract
Inflammation is the key host-defense response to infection and injury, yet also a major contributor to a diverse range of diseases, both peripheral and central in origin. Brain injury as a result of stroke or trauma is a leading cause of death and disability worldwide, yet there are no effective treatments, resulting in enormous social and economic costs. Increasing evidence, both preclinical and clinical, highlights inflammation as an important factor in stroke, both in determining outcome and as a contributor to risk. A number of inflammatory mediators have been proposed as key targets for intervention to reduce the burden of stroke, several reaching clinical trial, but as yet yielding no success. Many factors could explain these failures, including the lack of robust preclinical evidence and poorly designed clinical trials, in addition to the complex nature of the clinical condition. Lack of consideration in preclinical studies of associated co-morbidities prevalent in the clinical stroke population is now seen as an important omission in previous work. These co-morbidities (atherosclerosis, hypertension, diabetes, infection) have a strong inflammatory component, supporting the need for greater understanding of how inflammation contributes to acute brain injury. Interleukin (IL)-1 is the prototypical pro-inflammatory cytokine, first identified many years ago as the endogenous pyrogen. Research over the last 20 years or so reveals that IL-1 is an important mediator of neuronal injury and blocking the actions of IL-1 is beneficial in a number of experimental models of brain damage. Mechanisms underlying the actions of IL-1 in brain injury remain unclear, though increasing evidence indicates the cerebrovasculature as a key target. Recent literature supporting this and other aspects of how IL-1 and systemic inflammation in general contribute to acute brain injury are discussed in this review.
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Affiliation(s)
- Katie N Murray
- Faculty of Life Sciences, University of Manchester Manchester, UK
| | | | - Stuart M Allan
- Faculty of Life Sciences, University of Manchester Manchester, UK
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