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Zhang Z, Nie Z, Chen K, Shi R, Wu Z, Li C, Zhang S, Chen T. Association between intensive blood pressure lowering and stroke-free survival among patients with and without Diabetes. Sci Rep 2024; 14:21551. [PMID: 39285217 PMCID: PMC11405663 DOI: 10.1038/s41598-024-72211-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Accepted: 09/04/2024] [Indexed: 09/22/2024] Open
Abstract
This study pooled data from SPRINT (Systolic Blood Pressure Intervention Trial) and ACCORD-BP (Action to Control Cardiovascular Risk in Diabetes Blood Pressure) trial to estimate the treatment effect of intensive BP on stroke prevention, and investigate whether stroke risk score impacted treatment effect. Of all the potential manifestations of the hypertension, the most severe outcomes were stroke or death. A composite endpoint of time to death or stroke (stroke-free survival [SFS]), whichever occurred first, was defined as the outcome of interest. Participants without prevalent stroke were stratified into stroke risk tertiles based on the predicted revised Framingham Stroke Risk Score. The stratified Cox model was used to calculate the hazard ratio (HR) for the intensive BP treatment. 834 (5.92%) patients had SFS events over a median follow-up of 3.68 years. A reduction in the risk for SFS was observed among the intensive BP group as compared with the standard BP group (HR: 0.76, 95% CI: 0.65, 0.89; risk difference: 0.98([0.20, 1.76]). Further analyses demonstrated the significant benefit of intensive BP treatment on SFS only among participants having a high stroke risk (risk tertile 1: 0.76 [0.52, 1.11], number needed to treat [NNT] = 861; risk tertile 2: 0.87[0.65, 1.16], NNT = 91; risk tertile 3: 0.69[0.56, 0.86], NNT = 50). Intensive BP treatment lowered the risk of SFS, particularly for those at high risk of stroke.
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Affiliation(s)
- Zhuo Zhang
- School of Health Services Management, Xi'an Medical University, Xi'an, Shaanxi, China
| | - Zhiqiang Nie
- Hypertension Research Laboratory, Global Health Research Center, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Kangyu Chen
- Department of Cardiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Rui Shi
- Heart Rhythm Centre, The Royal Brompton and Harefield National Health Service Foundation Trust, National Heart and Lung Institute, Imperial College London, London, UK
| | - Zhenqiang Wu
- Department of Geriatric Medicine, The University of Auckland, Auckland, New Zealand
| | - Chao Li
- Department of Epidemiology and Health Statistics, School of Public Health, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi, China
| | - Songjie Zhang
- Department of School Health, Xi'an Center for Disease Control and Prevention, Xi'an, Shaanxi, China.
| | - Tao Chen
- Department of Epidemiology and Health Statistics, School of Public Health, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi, China.
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK.
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2
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van Oppen JD, Owen RK, Jones W, Beishon L, Coats TJ. The effect of relative hypotension on 30-day mortality in older people receiving emergency care. Intern Emerg Med 2024; 19:787-795. [PMID: 37940793 DOI: 10.1007/s11739-023-03468-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 10/18/2023] [Indexed: 11/10/2023]
Abstract
Research has observed increased mortality among older people attending the emergency department (ED) who had systolic pressure > 7 mmHg lower than baseline primary care values. This study aimed to (1) assess feasibility of identifying this 'relative hypotension' using readily available ED data, (2) externally validate the 7 mmHg threshold, and (3) refine a threshold for clinically important relative hypotension. A single-centre retrospective cohort study linked year 2019 data for ED attendances by people aged over 64 to hospital discharge vital signs within the previous 18 months. Frailty and comorbidity scores were calculated. Previous discharge ('baseline') vital signs were subtracted from initial ED values to give individuals' relative change. Cox regression analysis compared relative hypotension > 7 mmHg with mean time to mortality censored at 30 days. The relative hypotension threshold was refined using a fully adjusted risk tool formed of logistic regression models. Receiver operating characteristics were compared to NEWS2 models with and without incorporation of relative systolic. 5136 (16%) of 32,548 ED attendances were linkable with recent discharge vital signs. Relative hypotension > 7 mmHg was associated with increased 30-day mortality (HR 1.98; 95% CI 1.66-2.35). The adjusted risk tool (AUC: 0.69; sensitivity: 0.61; specificity: 0.68) estimated each 1 mmHg relative hypotension to increase 30-day mortality by 2% (OR 1.02; 95% CI 1.02-1.02). 30-day mortality prediction was marginally better with NEWS2 (AUC: 0.73; sensitivity: 0.59; specificity: 0.78) and NEWS2 + relative systolic (AUC: 0.74; sensitivity: 0.63; specificity: 0.75). Comparison of ED vital signs with recent discharge observations was feasible for 16% individuals. The association of relative hypotension > 7 mmHg with 30-day mortality was externally validated. Indeed, any relative hypotension appeared to increase risk, but model characteristics were poor. These findings are limited to the context of older people with recent hospital admissions.
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Affiliation(s)
- James David van Oppen
- Department of Population Health Sciences, University of Leicester, Leicester, UK.
- Emergency and Specialist Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK.
| | | | - William Jones
- Emergency and Specialist Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Lucy Beishon
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK
- NIHR Leicester Biomedical Research Centre, British Heart Foundation Cardiovascular Research Centre, Glenfield Hospital, Leicester, UK
| | - Timothy John Coats
- Department of Population Health Sciences, University of Leicester, Leicester, UK
- Emergency and Specialist Medicine, University Hospitals of Leicester NHS Trust, Leicester, UK
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3
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Li L, Wu B, Dong J, He S, Xu J, Tse G, Dai F, Liu H. Hemodynamic changes in progressive cerebral infarction: An observational study based on blood pressure monitoring. J Clin Hypertens (Greenwich) 2024; 26:122-133. [PMID: 38192040 PMCID: PMC10857478 DOI: 10.1111/jch.14759] [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: 09/06/2023] [Revised: 12/07/2023] [Accepted: 12/08/2023] [Indexed: 01/10/2024]
Abstract
Progressive cerebral infarction (PCI) is a common complication in patients with ischemic stroke that leads to poor prognosis. Blood pressure (BP) can indicate post-stroke hemodynamic changes which play a key role in the development of PCI. The authors aim to investigate the association between BP-derived hemodynamic parameters and PCI. Clinical data and BP recordings were collected from 80 patients with cerebral infarction, including 40 patients with PCI and 40 patients with non-progressive cerebral infarction (NPCI). Hemodynamic parameters were calculated from the BP recordings of the first 7 days after admission, including systolic and diastolic BP, mean arterial pressure, and pulse pressure (PP), with the mean values of each group calculated and compared between daytime and nighttime, and between different days. Hemodynamic parameters and circadian BP rhythm patterns were compared between PCI and NPCI groups using t-test or non-parametric equivalent for continuous variables, Chi-squared test or Fisher's exact test for categorical variables, Cox proportional hazards regression analysis and binary logistic regression analysis for potential risk factors. In PCI and NPCI groups, significant decrease of daytime systolic BP appeared on the second and sixth days, respectively. Systolic BP and fibrinogen at admission, daytime systolic BP of the first day, nighttime systolic BP of the third day, PP, and the ratio of abnormal BP circadian rhythms were all higher in the PCI group. PCI and NPCI groups were significantly different in BP circadian rhythm pattern. PCI is associated with higher systolic BP, PP and more abnormal circadian rhythms of BP.
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Affiliation(s)
- Ling Li
- Department of NeurologyZhoushan HospitalWenzhou Medical UniversityZhoushanChina
| | - Bin Wu
- Department of NeurologyPeople's Hospital of QuzhouQuzhouChina
| | - Jiaoxuan Dong
- Department of NeurologyZhoushan HospitalWenzhou Medical UniversityZhoushanChina
| | - Songbin He
- Department of NeurologyZhoushan HospitalWenzhou Medical UniversityZhoushanChina
| | - Jie Xu
- Department of NeurologyZhoushan HospitalWenzhou Medical UniversityZhoushanChina
| | - Gary Tse
- School of Nursing and Health StudiesHong Kong Metropolitan UniversityHong KongChina
- Tianjin Key Laboratory of Ionic‐Molecular Function of Cardiovascular DiseaseDepartment of CardiologyTianjin Institute of CardiologySecond Hospital of Tianjin Medical UniversityTianjinChina
- Kent and Medway Medical SchoolUniversity of Kent and Canterbury Christ Church UniversityCanterburyKentUK
| | - Fangyu Dai
- Department of NeurologyZhoushan HospitalWenzhou Medical UniversityZhoushanChina
| | - Haipeng Liu
- Research Centre for Intelligent HealthcareCoventry UniversityCoventryUK
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4
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Ding X, Zhou Y, Pan Y, Xu J, Yan H, Zhao X, Wang Y, Wang Y. Dipping Pattern and 1-year stroke functional outcome in ischemic stroke or transient ischemic attack. Clin Exp Hypertens 2023; 45:2139384. [DOI: 10.1080/10641963.2022.2139384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Xia Ding
- Department of Nephrology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yilun Zhou
- Department of Nephrology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yuesong Pan
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Jie Xu
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Hongyi Yan
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Xingquan Zhao
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Yilong Wang
- 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
| | - Yongjun Wang
- 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
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5
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Zachrison KS, Goldstein JN, Jauch E, Radecki RP, Madsen TE, Adeoye O, Oostema JA, Feeser VR, Ganti L, Lo BM, Meurer W, Corral M, Rothenberg C, Chaturvedi A, Goyal P, Venkatesh AK. Clinical Performance Measures for Emergency Department Care for Adults With Intracranial Hemorrhage. Ann Emerg Med 2023; 82:258-269. [PMID: 37074253 DOI: 10.1016/j.annemergmed.2023.03.015] [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: 09/06/2022] [Revised: 02/28/2023] [Accepted: 03/07/2023] [Indexed: 04/20/2023]
Abstract
Though select inpatient-based performance measures exist for the care of patients with nontraumatic intracranial hemorrhage, emergency departments lack measurement instruments designed to support and improve care processes in the hyperacute phase. To address this, we propose a set of measures applying a syndromic (rather than diagnosis-based) approach informed by performance data from a national sample of community EDs participating in the Emergency Quality Network Stroke Initiative. To develop the measure set, we convened a workgroup of experts in acute neurologic emergencies. The group considered the appropriate use case for each proposed measure: internal quality improvement, benchmarking, or accountability, and examined data from Emergency Quality Network Stroke Initiative-participating EDs to consider the validity and feasibility of proposed measures for quality measurement and improvement applications. The initially conceived set included 14 measure concepts, of which 7 were selected for inclusion in the measure set after a review of data and further deliberation. Proposed measures include 2 for quality improvement, benchmarking, and accountability (Last 2 Recorded Systolic Blood Pressure Measurements Under 150 and Platelet Avoidance), 3 for quality improvement and benchmarking (Proportion of Patients on Oral Anticoagulants Receiving Hemostatic Medications, Median ED Length of Stay for admitted patients, and Median Length of Stay for transferred patients), and 2 for quality improvement only (Severity Assessment in the ED and Computed Tomography Angiography Performance). The proposed measure set warrants further development and validation to support broader implementation and advance national health care quality goals. Ultimately, applying these measures may help identify opportunities for improvement and focus quality improvement resources on evidence-based targets.
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Affiliation(s)
- Kori S Zachrison
- Department of Emergency Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA.
| | - Joshua N Goldstein
- Department of Emergency Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA
| | | | - Ryan P Radecki
- Department of Emergency Medicine, Christchurch Hospital, Christchurch, New Zealand
| | - Tracy E Madsen
- Department of Emergency Medicine, Warren Alpert Medical School of Brown University, Providence, RI
| | - Opeolu Adeoye
- Department of Emergency Medicine, Washington University School of Medicine in St Louis, St Louis, MO
| | - John A Oostema
- Department of Emergency Medicine, Michigan State University College of Human Medicine, East Lansing, MI
| | - V Ramana Feeser
- Department of Emergency Medicine, Virginia Commonwealth University, Richmond, VA
| | - Latha Ganti
- Department of Emergency Medicine, University of Central Florida College of Medicine, Orlando, FL
| | - Bruce M Lo
- Department of Emergency Medicine, Sentara Norfolk General Hospital/Eastern Virginia Medical School, Norfolk, VA
| | - William Meurer
- Departments of Emergency Medicine and Neurology, University of Michigan Medical School, Ann Arbor, MI
| | | | - Craig Rothenberg
- Department of Emergency Medicine, Yale School of Medicine, New Haven, CT
| | | | - Pawan Goyal
- American College of Emergency Physicians, Irving, TX
| | - Arjun K Venkatesh
- Department of Emergency Medicine, Yale School of Medicine, New Haven, CT
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6
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Lip GYH, Lenarczyk R, Pastori D, Ntaios G, Doehner W, Schnabel R. Post-stroke cardiovascular management: Current concepts, integrated care and future developments. Curr Probl Cardiol 2023; 48:101738. [PMID: 37040854 DOI: 10.1016/j.cpcardiol.2023.101738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 04/06/2023] [Indexed: 04/13/2023]
Abstract
After an ischaemic stroke patients often have cardiovascular complications known as stroke-heart syndrome. The cardiovascular management after stroke has a significant impact on life expectancy as well as the quality of life. The development and implementation of management pathways to improve outcomes for patients with stroke-heart syndrome requires a multidisciplinary involvement from health care professionals from primary, secondary and tertiary prevention levels. A holistic, integrated care approach could follow the ABC pathway: A) Appropriate antithrombotic therapy in all stroke/TIA patients in the acute phase as well as recommendations for the longer term treatment regimen are required to avoid recurrent stroke. B) For better functional and psychological status the assessment of post-stroke cognitive and physical impairment, depression, and anxiety as part of routine post-stroke work-up in every patient is necessary. C) Cardiovascular risk factors and comorbidities management further includes cardiovascular work-up, adapted drug therapy, but often also lifestyle changes that are central to the success of integrated care for stroke-heart syndrome. Greater patient and family/caregiver involvement in planning actions and the input and feedback on optimizing stroke care pathways is needed. Achieving integrated care is challenging and highly context dependent on different healthcare levels. A tailored approach will utilize a variety of enabling factors. In this narrative review, we summarize the current evidence and outline potential factors that will contribute to the successful implementation of integrated cardiovascular care for stroke-heart syndrome management.
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Affiliation(s)
- Gregory Y H Lip
- Liverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart & Chest Hospital, Liverpool, United Kingdom; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark.
| | - Radosław Lenarczyk
- The Medical University of Silesia, Division of Medical Sciences in Zabrze, Department of Cardiology, Congenital Heart Diseases and Electrotherapy, Silesian Center of Heart Diseases, Curie-Sklodowska Str 9, 41-800 Zabrze, Poland
| | - Daniele Pastori
- Emergency Medicine Unit - Department of Clinical, Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Italy
| | - George Ntaios
- Department of Internal Medicine, School of Health Sciences, Faculty of Medicine, University of Thessaly, Larissa, Greece
| | - Wolfram Doehner
- BIH Center for Regenerative Therapies (BCRT) and Department of Internal Medicine and Cardiology (Virchow Klinikum), German Centre for Cardiovascular Research (DZHK) partner site Berlin and Center for Stroke Research Berlin, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Renate Schnabel
- Department of Cardiology, University Heart & Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; German Centre for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Hamburg, Germany
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7
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Ewing AC, Li Y, Chen X, Gallis J, Su K, Turner EL, Yan LL. Stroke and activity limitation in Chinese adults 65 Years or older. Disabil Health J 2023:101452. [PMID: 36934017 DOI: 10.1016/j.dhjo.2023.101452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 02/17/2023] [Accepted: 02/20/2023] [Indexed: 03/18/2023]
Abstract
BACKGROUND Differences in activity limitations between stroke survivors and people with other chronic conditions and how their levels of activity limitation vary by sociodemographic characteristics have not been well quantified. OBJECTIVE To quantify activity limitations experienced by Chinese older adult stroke survivors and explore stroke effects in specific subgroups. METHODS We used Chinese Longitudinal Healthy Longevity Survey 2017-2018 data (N = 11,743) to produce population-weighted estimates of activity limitations using the Activities of Daily Living (ADL) and the Instrumental ADL (IADL) scales for older adults (age 65 and older) stroke survivors compared to those with non-stroke chronic conditions and those without chronic conditions. Multinomial logistic regressions were run with outcomes "no activity limitation," "IADL only limitation," and "ADL limitation." RESULTS The weighted marginal prevalence of ADL limitation was higher in the stroke group (14.8%) than in those with non-stroke chronic condition (4.8%) or no chronic conditions (3.6%) (p < 0.01). The corresponding prevalence of IADL limitation for the three groups was 36.0%, 31.4%, and 22.2%, respectively (p < 0.01). Stroke survivors aged ≥ 80 years had a higher prevalence of ADL/IADL limitation than those aged 65-79 years (p < 0.01). Formal education was associated with a lower prevalence of ADL/IADL limitation in each chronic condition group (p < 0.01). CONCLUSIONS Prevalence and severity of activity limitation among Chinese older adult stroke survivors were several times higher than those without chronic conditions and those with non-stroke chronic conditions. Stroke survivors, particularly those aged ≥80 years and those without formal education, might be predisposed to more severe activity limitation and require more support to compensate.
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Affiliation(s)
| | - Yaxi Li
- Global Health Research Center, Duke Kunshan University, China; Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, China
| | - Xingxing Chen
- Global Health Research Center, Duke Kunshan University, China; School of Public Health, Wuhan University, China
| | - John Gallis
- Department of Biostatistics and Bioinformatics, Duke University, USA; Duke Global Health Institute, Duke University, USA
| | - Kehan Su
- Global Health Research Center, Duke Kunshan University, China
| | - Elizabeth L Turner
- Department of Biostatistics and Bioinformatics, Duke University, USA; Duke Global Health Institute, Duke University, USA
| | - Lijing L Yan
- Global Health Research Center, Duke Kunshan University, China; School of Public Health, Wuhan University, China; Duke Global Health Institute, Duke University, USA.
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8
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Cheng W, Zhao Q, Li C, Xu Y. Neuroinflammation and brain-peripheral interaction in ischemic stroke: A narrative review. Front Immunol 2023; 13:1080737. [PMID: 36685518 PMCID: PMC9849888 DOI: 10.3389/fimmu.2022.1080737] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 12/12/2022] [Indexed: 01/07/2023] Open
Abstract
Excessive immune activation within the lesion site can be observed after stroke onset. Such neuroinflammation within the brain parenchyma represents the innate immune response, as well as the result of the additional interactions between peripheral and resident immune cells. Accumulative studies have illustrated that the pathological process of ischemic stroke is associated with resident and peripheral immunity. The infiltration of peripheral immune cells within the brain parenchyma implicitly contributes to secondary brain injuries. Therefore, better understanding of the roles of resident and peripheral immune reactions toward ischemic insult is necessary. In this review, we summarized the interaction between peripheral and resident immunity on systemic immunity and the clinical outcomes after stroke onset and also discussed various potential immunotherapeutic strategies.
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Affiliation(s)
- Wenjing Cheng
- Department of Laboratory Medicine, Linping Hospital of Integrated Traditional Chinese and Western Medicine, Hangzhou, Zhejiang, China,*Correspondence: Wenjing Cheng,
| | - Qing Zhao
- Center for Translational Medicine, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Chengzhen Li
- Department of Laboratory Medicine, Shanghai Guanghua Hospital of Integrated Traditional Chinese and Western Medicine, Guanghua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yunzhi Xu
- Department of Laboratory Medicine, Wenzhou Central Hospital, Affiliated Dingli Clinical Institute of Wenzhou Medical University, Wenzhou, China
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9
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Hao F, Yin S, Tang L, Zhang X, Zhang S. Nicardipine versus Labetalol for Hypertension during Acute Stroke: A Systematic Review and Meta-Analysis. Neurol India 2022; 70:1793-1799. [PMID: 36352567 DOI: 10.4103/0028-3886.359214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
BACKGROUND AND OBJECTIVE Current recommendations prescribe either nicardipine or labetalol as the first-line treatment for acute hypertension due to ease of use, availability, and low price. However, it is unclear if these drugs have different effectiveness and safety profiles. This systematic review and meta-analysis aimed to compare the efficacy and safety of labetalol and nicardipine in patients with acute stroke. MATERIALS AND METHODS MEDLINE via PubMed, Scopus, Embase, and Google Scholar databases were electronically searched for the eligible publications from inception until March 2022. All full-text journal papers in English which compared the efficacy of nicardipine with that of labetalol on lowering blood pressure (BP; or treating hypertension) in all subtypes of acute stroke were included. The Cochrane Collaboration tool was used to assess the risk of bias. Data were analyzed using specific statistical methods. RESULTS Following the abstract and full-text screening, this meta-analysis included five retrospective cohorts and one prospective pseudorandomized cohort. Nicardipine's effect on time at goal BP was significantly superior to that of labetalol in patients with acute stroke (0.275 standardized mean difference [SMD], 95% confidence interval [CI]: 0.112-0.438, P = 0.001). The incidence of adverse events was significantly higher in the nicardipine group than that in the labetalol group. The pooled odds ratio (OR) was 1.509 (95% CI: 1.077-2.113, I2 = 0.00%, P = 0.757). The quality of included studies was found to be low. CONCLUSION More prospective, comparative trials are needed to investigate the efficacy of BP management as well as clinical outcomes in acute stroke patients receiving continuous labetalol and nicardipine infusions.
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Affiliation(s)
- Fang Hao
- Department of Neurology, Liaocheng People's Hospital, Shandong Province, China
| | - Suna Yin
- Department of Operating Room, Liaocheng Veterans Hospital, Shandong Province, China
| | - Lina Tang
- Department of Neurosurgery, Liaocheng People's Hospital, Shandong Province, China
| | - Xueguang Zhang
- Department of Neurosurgery, Liaocheng People's Hospital, Shandong Province, China
| | - Shubao Zhang
- Department of Neurosurgery, Liaocheng People's Hospital, Shandong Province, China
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10
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Chen P, Wu Q, Xie X, Jing J, Gu H, Wang X, Meng X, Liu L, Wang Y, Wang Y. Systolic blood pressure and recurrent stroke in patients with different lesion patterns on diffusion weighted imaging. J Clin Hypertens (Greenwich) 2022; 24:1350-1357. [PMID: 35959564 PMCID: PMC9581100 DOI: 10.1111/jch.14543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/22/2022] [Accepted: 06/23/2022] [Indexed: 11/28/2022]
Abstract
Little is known about the relationship between baseline systolic blood pressure (SBP) and subsequent clinical events in patients with different lesion patterns on diffusion weighted imaging (DWI). We analyzed the Acute Non‐disabling Cerebrovascular Events (CHANCE) trial dataset. Patients were categorized into negative DW imaging (no detectable lesions), lacunar infarction (single lesion ≤15 mm) and non‐lacunar infarction (single lesion >15 mm or multiple lesions) based on lesion patterns on DWI. The primary outcome was recurrent stroke within 90 days. Cox proportional hazards models were used to assess the association between SBP levels and stroke outcomes in patients with different lesion patterns. A total of 1089 patients were analyzed. We found 258 cases (23.7%) with negative DW imaging, 392 (36.0%) with lacunar infarction and 439 (40.3%) with non‐lacunar infarction. Patients with non‐lacunar infarction had the highest incidence of stroke at 90‐day (P < .001). In non‐lacunar infarction group, compared with SBP < 160 mmHg, patients with SBP ≥ 160 mmHg had significantly higher risk of 90‐day recurrent stroke (20.3% vs. 10.7%; adjusted hazard ratio 1.81, 95% confidence interval 1.09–3.00). No significant association was found between SBP and clinical outcomes in patients with negative DWI and lacunar stroke groups. The result at 1 year was similar as at 90‐day. Therefore, non‐lacunar infarction, the most common lesion pattern in CHANCE study, had the highest risk of recurrent stroke and combined vascular events both in 90 days and 1 year. High baseline SBP was significantly associated with increased risk of short‐ and long‐term recurrent strokes in patients with non‐lacunar infarction.
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Affiliation(s)
- Pan Chen
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China.,Research Unit of Artificial Intelligence in Cerebrovascular Disease, Chinese Academy of Medical Sciences, Beijing, China
| | - Qiong Wu
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China.,Research Unit of Artificial Intelligence in Cerebrovascular Disease, Chinese Academy of Medical Sciences, Beijing, China.,Department of Neurology, The Second Hospital of Dalian Medical University, Dalian, China
| | - Xuewei Xie
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China.,Research Unit of Artificial Intelligence in Cerebrovascular Disease, Chinese Academy of Medical Sciences, Beijing, China
| | - Jing Jing
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China.,Research Unit of Artificial Intelligence in Cerebrovascular Disease, Chinese Academy of Medical Sciences, Beijing, China
| | - Hongqiu Gu
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China.,Research Unit of Artificial Intelligence in Cerebrovascular Disease, Chinese Academy of Medical Sciences, Beijing, China
| | - Xianwei Wang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China.,Research Unit of Artificial Intelligence in Cerebrovascular Disease, Chinese Academy of Medical Sciences, Beijing, China
| | - Xia Meng
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China.,Research Unit of Artificial Intelligence in Cerebrovascular Disease, Chinese Academy of Medical Sciences, 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.,Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China.,Research Unit of Artificial Intelligence in Cerebrovascular Disease, Chinese Academy of Medical Sciences, Beijing, China
| | - Yilong Wang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China.,Research Unit of Artificial Intelligence in Cerebrovascular Disease, Chinese Academy of Medical Sciences, Beijing, China
| | - Yongjun Wang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China.,Research Unit of Artificial Intelligence in Cerebrovascular Disease, Chinese Academy of Medical Sciences, Beijing, China
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11
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Ng TP, Wong C, Leong ELE, Tan BY, Chan MYY, Yeo LL, Yeo TC, Wong RC, Leow AS, Ho JSY, Sia CH. Simultaneous cardio-cerebral infarction: a meta-analysis. QJM 2022; 115:374-380. [PMID: 34051098 DOI: 10.1093/qjmed/hcab158] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 05/24/2021] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND/INTRODUCTION Cardio-cerebral infarction (CCI), which involves the simultaneous occurrence of acute ischaemic stroke and acute myocardial infarction, has a reported incidence of 0.0009%. Treatment of CCI presents a dilemma to physicians as both conditions are time critical. Despite the need for standardized treatment protocols, published data are sparse. AIM We aimed to summarize the reported cardio-cerebral infarction cases in the literature. DESIGN Meta-analysis. METHODS Four databases, Pubmed, Embase, Scopus and Google Scholar were searched until 25 August 2020. A title and abstract sieve, full-text review and extraction of data were conducted independently by three authors. RESULTS A total of 44 cases of CCI were identified from 37 case reports and series; 15 patients (34.1%) were treated using percutaneous coronary intervention (PCI) with stent, 8 patients (18.2%) were treated with a PCI without stent, 10 patients (22.7%) were treated via a cerebral vessel thrombectomy and 8 patients (18.2%) were treated via a thrombectomy of a coronary vessel. For medications, 20 patients (45.5%) were treated with thrombolytics, 10 patients (22.7%) were treated with anticoagulants, 8 patients (18.2%) were treated with antiplatelets and 11 patients (25.0%) were treated with anticoagulants and antiplatelets. Of 44 patients, 10 patients died, and 9 of those were due to cardiac causes. Among the 44 patients, days to death was observed to be a median of 2.0 days (interquartile range (IQR): 1.5, 4.0). The modified Rankin Score was measured in nine patients, with a median score of 2.0 (IQR: 1.0, 2.5) being reported. DISCUSSION/CONCLUSION The condition of CCI has substantial morbidity and mortality, and further studies are needed to examine the optimal diagnostic and treatment strategies of these patients.
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Affiliation(s)
- T P Ng
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10, 119228, Singapore
| | - C Wong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10, 119228, Singapore
| | - E L E Leong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10 , 119228, Singapore
| | - B Y Tan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road , NUHS Tower Block Level 10, 119228, Singapore
- Division of Neurology, University Medicine Cluster, National University Health System, 1E Kent Ridge Road, NUHS Tower Block Level 10, 119228, Singapore
| | - M Y-Y Chan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10, 119228, Singapore
- Department of Cardiology, National University Heart Centre, Singapore, 5 Lower Kent Ridge Road, 119074, Singapore
| | - L L Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10, 119228, Singapore
- Division of Neurology, University Medicine Cluster, National University Health System, 1E Kent Ridge Road, NUHS Tower Block Level 10, 119228, Singapore
| | - T-C Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10, 119228, Singapore
- Department of Cardiology, National University Heart Centre, Singapore, 5 Lower Kent Ridge Road, 119074, Singapore
| | - R C Wong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10, 119228, Singapore
- Department of Cardiology, National University Heart Centre, Singapore, 5 Lower Kent Ridge Road , 119074, Singapore
| | - A S Leow
- Internal Medicine Residency, National University Health System, 1E Kent Ridge Road, NUHS Tower Block Level 10, 119228, Singapore
| | - J S-Y Ho
- Academic Foundation Programme, North Middlesex University Hospital NHS Trust, Sterling Way, London, N18 1QX, UK
| | - C-H Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10, 119228, Singapore
- Department of Cardiology, National University Heart Centre, Singapore , 5 Lower Kent Ridge Road, 119074, Singapore
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12
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Fan JL, Brassard P, Rickards CA, Nogueira RC, Nasr N, McBryde FD, Fisher JP, Tzeng YC. Integrative cerebral blood flow regulation in ischemic stroke. J Cereb Blood Flow Metab 2022; 42:387-403. [PMID: 34259070 PMCID: PMC8985438 DOI: 10.1177/0271678x211032029] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Optimizing cerebral perfusion is key to rescuing salvageable ischemic brain tissue. Despite being an important determinant of cerebral perfusion, there are no effective guidelines for blood pressure (BP) management in acute stroke. The control of cerebral blood flow (CBF) involves a myriad of complex pathways which are largely unaccounted for in stroke management. Due to its unique anatomy and physiology, the cerebrovascular circulation is often treated as a stand-alone system rather than an integral component of the cardiovascular system. In order to optimize the strategies for BP management in acute ischemic stroke, a critical reappraisal of the mechanisms involved in CBF control is needed. In this review, we highlight the important role of collateral circulation and re-examine the pathophysiology of CBF control, namely the determinants of cerebral perfusion pressure gradient and resistance, in the context of stroke. Finally, we summarize the state of our knowledge regarding cardiovascular and cerebrovascular interaction and explore some potential avenues for future research in ischemic stroke.
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Affiliation(s)
- Jui-Lin Fan
- Manaaki Mānawa - The Centre for Heart Research, Department of Physiology, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Patrice Brassard
- Department of Kinesiology, Faculty of Medicine, Université Laval, Québec City, Canada.,Research Center of the Institut universitaire de cardiologie et de pneumologie de Québec, Québec City, Canada
| | - Caroline A Rickards
- Department of Physiology & Anatomy, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Ricardo C Nogueira
- Neurology Department, School of Medicine, Hospital das Clinicas, University of São Paulo, São Paulo, Brazil.,Neurology Department, Hospital Nove de Julho, São Paulo, Brazil
| | - Nathalie Nasr
- Department of Neurology, Toulouse University Hospital, NSERM UMR 1297, Toulouse, France
| | - Fiona D McBryde
- Manaaki Mānawa - The Centre for Heart Research, Department of Physiology, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - James P Fisher
- Manaaki Mānawa - The Centre for Heart Research, Department of Physiology, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Yu-Chieh Tzeng
- Wellington Medical Technology Group, Department of Surgery and Anaesthesia, University of Otago, Wellington, New Zealand.,Department of Surgery & Anaesthesia, Centre for Translational Physiology, University of Otago, Wellington, New Zealand
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13
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Llwyd O, Fan JL, Müller M. Effect of drug interventions on cerebral hemodynamics in ischemic stroke patients. J Cereb Blood Flow Metab 2022; 42:471-485. [PMID: 34738511 PMCID: PMC8985436 DOI: 10.1177/0271678x211058261] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The ischemic penumbra is sensitive to alterations in cerebral perfusion. A myriad of drugs are used in acute ischemic stroke (AIS) management, yet their impact on cerebral hemodynamics is poorly understood. As part of the Cerebral Autoregulation Network led INFOMATAS project (Identifying New Targets for Management and Therapy in Acute Stroke), this paper reviews some of the most common drugs a patient with AIS will come across and their potential influence on cerebral hemodynamics with a particular focus being on cerebral autoregulation (CA). We first discuss how compounds that promote clot lysis and prevent clot formation could potentially impact cerebral hemodynamics, before focusing on how the different classes of antihypertensive drugs can influence cerebral hemodynamics. We discuss the different properties of each drug and their potential impact on cerebral perfusion and CA. With emerging interest in CA status of AIS patients, either during or soon after treatment when timely reperfusion and salvageable tissue is at its most critical, the properties of these pharmacological agents may be relevant for modelling cerebral perfusion accuracy and for setting individualised treatment strategies.
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Affiliation(s)
- Osian Llwyd
- Department of Cardiovascular Sciences, Cerebral Haemodynamics in Ageing and Stroke Medicine Research Group, University of Leicester, Leicester, UK
| | - Jui-Lin Fan
- Manaaki Manawa - The Centre for Heart Research, Department of Physiology, Faculty of Medical & Health Sciences, University of Auckland, Auckland, New Zealand
| | - Martin Müller
- Neurozentrum, Klinik für Neurologie und Neurorehabilitation, Luzerner Kantonsspital, Spitalstrasse, Luzern, Switzerland
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14
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Owjfard M, Taghadosi Z, Bigdeli MR, Safari A, Zarifkar A, Borhani-Haghighi A, Namavar MR. Effect of nicorandil on the spatial arrangement of primary motor cortical neurons in the sub-acute phase of stroke in a rat model. J Chem Neuroanat 2021; 117:102000. [PMID: 34233211 DOI: 10.1016/j.jchemneu.2021.102000] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 06/29/2021] [Accepted: 07/01/2021] [Indexed: 12/28/2022]
Abstract
INTRODUCTION Ischemic stroke remains a major cause of disability and death worldwide. The density and the spatial distribution of the primary motor (M1) cortical neurons are important in signal transmission and control the movement-related functions. Recently, the neuroprotective effect of nicorandil in cerebral ischemia was described through its anti-apoptosis, antioxidant and anti-inflammatory properties. This study aimed to determine the effects of nicorandil on the neurobehavioral outcome, infarct size, and density, and spatial distribution of M1 cortical neurons after cerebral ischemia. METHODS Thirty Sprague-Dawley rats were randomly divided into three groups. Sham underwent surgery without middle cerebral artery occlusion (MCAO) and drug. The MCAO and treatment groups after MCAO received saline or nicorandil 2, 24, 48, and 72 h after the induction of brain ischemia. Neurobehavioral tests were performed, brains removed, sectioned, and stained by 2,3,5-triphenyltetrazolium chloride (TTC) to estimate the size of the infarction and Nissl staining to evaluate the numerical density, mean area, and the distribution pattern of M1 cortical neurons, using Voronoi spatial tessellation. RESULTS Although nicorandil treatment significantly decreased the neurological deficits and density of neuronal neighbors, it could not preserve the normal regular spatial distributions of M1 cortical neurons after MCAO. It also could not significantly improve motor function or reduce ischemic lesion size. CONCLUSIONS Treatment using the present dose of nicorandil during sub-acute ischemic stroke could not increase neuronal density or preserve the normal regular spatial distributions after MCAO. However, it had beneficial effects on neurobehavioral and motor function and somewhat reduced ischemic lesion size.
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Affiliation(s)
- Maryam Owjfard
- Clinical Neurology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Animal Sciences and Biotechnology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran
| | - Zohreh Taghadosi
- Department of Neuroscience, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Reza Bigdeli
- Department of Animal Sciences and Biotechnology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran; Institute for Cognitive and Brain Science, Shahid Beheshti University, Tehran, Iran
| | - Anahid Safari
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Asadollah Zarifkar
- Shiraz Neuroscience Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Mohammad Reza Namavar
- Histomorphometry & Stereology Research Centre, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
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15
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Blood Pressure Control in Acute Stroke: Labetalol or Nicardipine? J Stroke Cerebrovasc Dis 2021; 30:105959. [PMID: 34217067 DOI: 10.1016/j.jstrokecerebrovasdis.2021.105959] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 06/10/2021] [Indexed: 01/06/2023] Open
Abstract
PURPOSE To assess the safety and efficacy of continuous infusion (CIV)-labetalol compared to -nicardipine in controlling blood pressure (BP) in the acute stroke setting. MATERIALS Patients were eligible if they had a diagnosis of an acute stroke and were administered either CIV-labetalol or CIV-nicardipine. Study outcomes were assessed within the first 24 h of the antihypertensive infusion. RESULTS A total of 3,093 patients were included with 3,008 patients in the CIV-nicardipine group and 85 in the CIV-labetalol group. No significant difference was observed in percent time at goal BP between the nicardipine (82%) and labetalol (85%) groups (p = 0.351). There was also no difference in BP variability between nicardipine (37%) and labetalol (39%) groups (p = 0.433). Labetalol was found to have a shorter time to goal BP as compared to nicardipine (24 min vs. 40 min; p = 0.021). While CIV-nicardipine did have a higher incidence of tachycardia compared to labetalol (17% vs. 4%; p <0.001), the incidence of hypotension (13% vs. 15%; p = 0.620) and bradycardia (24% vs. 22%; p = 0.797) were similar. CONCLUSIONS These results indicate that CIV-labetalol and CIV-nicardipine are comparable in safety and efficacy in controlling BP for patients with acute stroke.
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16
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Sung SF, Hung LC, Hu YH. Developing a stroke alert trigger for clinical decision support at emergency triage using machine learning. Int J Med Inform 2021; 152:104505. [PMID: 34030088 DOI: 10.1016/j.ijmedinf.2021.104505] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 05/01/2021] [Accepted: 05/17/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND Acute stroke is an urgent medical condition that requires immediate assessment and treatment. Prompt identification of patients with suspected stroke at emergency department (ED) triage followed by timely activation of code stroke systems is the key to successful management of stroke. While false negative detection of stroke may prevent patients from receiving optimal treatment, excessive false positive alarms will substantially burden stroke neurologists. This study aimed to develop a stroke-alert trigger to identify patients with suspected stroke at ED triage. METHODS Patients who arrived at the ED within 12 h of symptom onset and were suspected of a stroke or transient ischemic attack or triaged with a stroke-related symptom were included. Clinical features at ED triage were collected, including the presenting complaint, triage level, self-reported medical history (hypertension, diabetes, hyperlipidemia, heart disease, and prior stroke), vital signs, and presence of atrial fibrillation. Three rule-based algorithms, ie, Face Arm Speech Test (FAST) and two flavors of Balance, Eyes, FAST (BE-FAST), and six machine learning (ML) techniques with various resampling methods were used to build classifiers for identification of patients with suspected stroke. Logistic regression (LR) was used to find important features. RESULTS The study population consisted of 1361 patients. The values of area under the precision-recall curve (AUPRC) were 0.737, 0.710, and 0.562 for the FAST, BE-FAST-1, and BE-FAST-2 models, respectively. The values of AUPRC for the top three ML models were 0.787 for classification and regression tree with undersampling, 0.783 for LR with synthetic minority oversampling technique (SMOTE), and 0.782 for LR with class weighting. Among the ML models, logistic regression and random forest models in general achieved higher values of AUPRC, in particular in those with class weighting or SMOTE to handle class imbalance problem. In addition to the presenting complaint and triage level, age, diastolic blood pressure, body temperature, and pulse rate, were also important features for developing a stroke-alert trigger. CONCLUSIONS ML techniques significantly improved the performance of prediction models for identification of patients with suspected stroke. Such ML models can be embedded in the electronic triage system for clinical decision support at ED triage.
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Affiliation(s)
- Sheng-Feng Sung
- Division of Neurology, Department of Internal Medicine, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi City, Taiwan; Department of Information Management and Institute of Healthcare Information Management, National Chung Cheng University, Chiayi County, Taiwan; Department of Nursing, Min-Hwei Junior College of Health Care Management, Tainan, Taiwan
| | - Ling-Chien Hung
- Division of Neurology, Department of Internal Medicine, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi City, Taiwan
| | - Ya-Han Hu
- Department of Information Management, National Central University, Taoyuan City, Taiwan.
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17
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Targeting the Autonomic Nervous System for Risk Stratification, Outcome Prediction and Neuromodulation in Ischemic Stroke. Int J Mol Sci 2021; 22:ijms22052357. [PMID: 33652990 PMCID: PMC7956667 DOI: 10.3390/ijms22052357] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 02/22/2021] [Accepted: 02/24/2021] [Indexed: 02/07/2023] Open
Abstract
Ischemic stroke is a worldwide major cause of mortality and disability and has high costs in terms of health-related quality of life and expectancy as well as of social healthcare resources. In recent years, starting from the bidirectional relationship between autonomic nervous system (ANS) dysfunction and acute ischemic stroke (AIS), researchers have identified prognostic factors for risk stratification, prognosis of mid-term outcomes and response to recanalization therapy. In particular, the evaluation of the ANS function through the analysis of heart rate variability (HRV) appears to be a promising non-invasive and reliable tool for the management of patients with AIS. Furthermore, preclinical molecular studies on the pathophysiological mechanisms underlying the onset and progression of stroke damage have shown an extensive overlap with the activity of the vagus nerve. Evidence from the application of vagus nerve stimulation (VNS) on animal models of AIS and on patients with chronic ischemic stroke has highlighted the surprising therapeutic possibilities of neuromodulation. Preclinical molecular studies highlighted that the neuroprotective action of VNS results from anti-inflammatory, antioxidant and antiapoptotic mechanisms mediated by α7 nicotinic acetylcholine receptor. Given the proven safety of non-invasive VNS in the subacute phase, the ease of its use and its possible beneficial effect in hemorrhagic stroke as well, human studies with transcutaneous VNS should be less challenging than protocols that involve invasive VNS and could be the proof of concept that neuromodulation represents the very first therapeutic approach in the ultra-early management of stroke.
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18
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Ouyang M, Muñoz-Venturelli P, Billot L, Wang X, Song L, Arima H, Lavados PM, Hackett ML, Olavarría VV, Brunser A, Middleton S, Pontes-Neto OM, Lee TH, Watkins CL, Robinson T, Anderson CS. Low blood pressure and adverse outcomes in acute stroke: HeadPoST study explanations. J Hypertens 2021; 39:273-279. [PMID: 32897905 PMCID: PMC7810418 DOI: 10.1097/hjh.0000000000002649] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/13/2020] [Accepted: 08/15/2020] [Indexed: 01/14/2023]
Abstract
OBJECTIVE As uncertainties exist over underlying causes, we aimed to define the characteristics and prognostic significance of low blood pressure (BP) early after the onset of acute stroke. METHODS Post hoc analyzes of the international Head Positioning in acute Stroke Trial (HeadPoST), a pragmatic cluster-crossover randomized trial of lying flat versus sitting up in stroke patients from nine countries during 2015-2016. Associations of baseline BP and death or dependency [modified Rankin scale (mRS) scores 3-6] and serious adverse events (SAEs) at 90 days were assessed in generalized linear mixed models with adjustment for multiple confounders. SBP and DBP was analysed as continuous measures fitted with a cubic spline, and as categorical measures with low (<10th percentile) and high (≥140 and ≥90 mmHg, respectively) levels compared with a normal range (≥10th percentile; 120-139 and 70-89 mmHg, respectively). RESULTS Among 11 083 patients (mean age 68 years, 39.9% women) with baseline BP values, 7.2 and 11.7% had low SBP (<120 mmHg) and DBP (<70 mmHg), respectively. Patients with low SBP were more likely to have preexisting cardiac and ischemic stroke and functional impairment, and to present earlier with more severe neurological impairment than other patients. Nonlinear 'J-shaped' relationships of BP and poor outcome were apparent: compared with normal SBP, those with low SBP had worse functional outcome (adjusted odds ratio 1.27, 95% confidence interval 1.02-1.58) and more SAEs, particularly cardiac events, with adjustment for potential confounders to minimize reverse causation. The findings were consistent for DBP and were stronger for ischemic rather than hemorrhagic stroke. CONCLUSION The prognostic significance of low BP on poor outcomes in acute stroke was not explained by reverse causality from preexisting cardiovascular disease, and propensity towards greater neurological deficits and cardiac events. These findings provide support for the hypothesis that low BP exacerbates cardiac and cerebral ischemia in acute ischemic stroke.
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Affiliation(s)
- Menglu Ouyang
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, Australia
- The George Institute China at Peking University Health Science Center, Beijing, China
| | - Paula Muñoz-Venturelli
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, Australia
- Centro de Estudios Clínicos, Instituto de Ciencias e Innovación en Medicina, Facultad de Medicina Clínica Alemana Universidad del Desarrollo
- Unidad de Neurología Vascular, Servicio de Neurología, Departmento de Neurología and Psiquiatría, Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana Universidad del Desarrollo, Santiago, Chile
| | - Laurent Billot
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, Australia
| | - Xia Wang
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, Australia
| | - Lili Song
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, Australia
- The George Institute China at Peking University Health Science Center, Beijing, China
| | - Hisatomi Arima
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, Australia
- Department of Preventive Medicine and Public Health, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Pablo M. Lavados
- Unidad de Neurología Vascular, Servicio de Neurología, Departmento de Neurología and Psiquiatría, Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana Universidad del Desarrollo, Santiago, Chile
| | - Maree L. Hackett
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, Australia
- Faculty of Health and Wellbeing, University of Central Lancashire, Preston, Lancashire, UK
| | - Verónica V. Olavarría
- Unidad de Neurología Vascular, Servicio de Neurología, Departmento de Neurología and Psiquiatría, Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana Universidad del Desarrollo, Santiago, Chile
| | - Alejandro Brunser
- Unidad de Neurología Vascular, Servicio de Neurología, Departmento de Neurología and Psiquiatría, Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana Universidad del Desarrollo, Santiago, Chile
| | - Sandy Middleton
- Nursing Research Institute, St Vincent's Health Network Sydney, St Vincent's Hospital Melbourne and Australian Catholic University, Sydney, Australia
| | - Octavio M. Pontes-Neto
- Stroke Service - Neurology Division, Department of Neuroscience and Behavioral Sciences, Ribeirão Preto Medical School, University of Sao Paulo, Ribeirão Preto – SP, Brazil
| | - Tsong-Hai Lee
- Stroke Center and Department of Neurology, Linkou Chang Gung Memorial Hospital and College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Caroline L. Watkins
- Faculty of Health and Wellbeing, University of Central Lancashire, Preston, Lancashire, UK
| | - Thompson Robinson
- Department of Cardiovascular Sciences and NIHR Leicester Biomedical Research Centre, University of Leicester, Leicester, UK
| | - Craig S. Anderson
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, Australia
- The George Institute China at Peking University Health Science Center, Beijing, China
- Centro de Estudios Clínicos, Instituto de Ciencias e Innovación en Medicina, Facultad de Medicina Clínica Alemana Universidad del Desarrollo
- Neurology Department, Royal Prince Alfred Hospital, Sydney Health Partners, Sydney, Australia
- Heart Health Research Center, Beijing, China
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19
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Cantone M, Lanza G, Puglisi V, Vinciguerra L, Mandelli J, Fisicaro F, Pennisi M, Bella R, Ciurleo R, Bramanti A. Hypertensive Crisis in Acute Cerebrovascular Diseases Presenting at the Emergency Department: A Narrative Review. Brain Sci 2021; 11:70. [PMID: 33430236 PMCID: PMC7825668 DOI: 10.3390/brainsci11010070] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 01/02/2021] [Accepted: 01/04/2021] [Indexed: 02/07/2023] Open
Abstract
Hypertensive crisis, defined as an increase in systolic blood pressure >179 mmHg or diastolic blood pressure >109 mmHg, typically causes end-organ damage; the brain is an elective and early target, among others. The strong relationship between arterial hypertension and cerebrovascular diseases is supported by extensive evidence, with hypertension being the main modifiable risk factor for both ischemic and hemorrhagic stroke, especially when it is uncontrolled or rapidly increasing. However, despite the large amount of data on the preventive strategies and therapeutic measures that can be adopted, the management of high BP in patients with acute cerebrovascular diseases presenting at the emergency department is still an area of debate. Overall, the outcome of stroke patients with high blood pressure values basically depends on the occurrence of hypertensive emergency or hypertensive urgency, the treatment regimen adopted, the drug dosages and their timing, and certain stroke features. In this narrative review, we provide a timely update on the current treatment, debated issues, and future directions related to hypertensive crisis in patients referred to the emergency department because of an acute cerebrovascular event. This will also focus greater attention on the management of certain stroke-related, time-dependent interventions, such as intravenous thrombolysis and mechanic thrombectomy.
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Affiliation(s)
- Mariagiovanna Cantone
- Department of Neurology, Sant’Elia Hospital, ASP Caltanissetta, Via Luigi Russo, 6, 93100 Caltanissetta, Italy;
| | - Giuseppe Lanza
- Department of Surgery and Medical-Surgical Specialties, University of Catania, Via Santa Sofia, 78, 95123 Catania, Italy
- Department of Neurology IC, Oasi Research Institute—IRCCS, Via Conte Ruggero, 73, 94018 Troina, Italy
| | - Valentina Puglisi
- Department of Neurology and Stroke Unit, ASST Cremona, Viale Concordia, 1, 26100 Cremona, Italy; (V.P.); (L.V.)
| | - Luisa Vinciguerra
- Department of Neurology and Stroke Unit, ASST Cremona, Viale Concordia, 1, 26100 Cremona, Italy; (V.P.); (L.V.)
| | - Jaime Mandelli
- Department of Neurosurgery, Sant’Elia Hospital, ASP Caltanissetta, Via Luigi Russo, 6, 93100 Caltanissetta, Italy;
| | - Francesco Fisicaro
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via Santa Sofia, 89, 95123 Catania, Italy; (F.F.); (M.P.)
| | - Manuela Pennisi
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via Santa Sofia, 89, 95123 Catania, Italy; (F.F.); (M.P.)
| | - Rita Bella
- Department of Medical and Surgical Sciences and Advanced Technologies, University of Catania, Via Santa Sofia, 78, 95123 Catania, Italy;
| | - Rosella Ciurleo
- IRCCS Centro Neurolesi Bonino-Pulejo, S.S. 113, Via Palermo C/da Casazza, 98123 Messina, Italy; (R.C.); (A.B.)
| | - Alessia Bramanti
- IRCCS Centro Neurolesi Bonino-Pulejo, S.S. 113, Via Palermo C/da Casazza, 98123 Messina, Italy; (R.C.); (A.B.)
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20
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Hypertensive Crisis in Acute Cerebrovascular Diseases Presenting at the Emergency Department: A Narrative Review. Brain Sci 2021. [PMID: 33430236 DOI: 10.3390/brainsci11010070.] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Hypertensive crisis, defined as an increase in systolic blood pressure >179 mmHg or diastolic blood pressure >109 mmHg, typically causes end-organ damage; the brain is an elective and early target, among others. The strong relationship between arterial hypertension and cerebrovascular diseases is supported by extensive evidence, with hypertension being the main modifiable risk factor for both ischemic and hemorrhagic stroke, especially when it is uncontrolled or rapidly increasing. However, despite the large amount of data on the preventive strategies and therapeutic measures that can be adopted, the management of high BP in patients with acute cerebrovascular diseases presenting at the emergency department is still an area of debate. Overall, the outcome of stroke patients with high blood pressure values basically depends on the occurrence of hypertensive emergency or hypertensive urgency, the treatment regimen adopted, the drug dosages and their timing, and certain stroke features. In this narrative review, we provide a timely update on the current treatment, debated issues, and future directions related to hypertensive crisis in patients referred to the emergency department because of an acute cerebrovascular event. This will also focus greater attention on the management of certain stroke-related, time-dependent interventions, such as intravenous thrombolysis and mechanic thrombectomy.
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21
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Zhou Z, Xia C, Carcel C, Yoshimura S, Wang X, Delcourt C, Malavera A, Chen X, Mair G, Woodward M, Chalmers J, Demchuk AM, Lindley RI, Robinson TG, Parsons MW, Wardlaw JM, Anderson CS. Intensive versus guideline-recommended blood pressure reduction in acute lacunar stroke with intravenous thrombolysis therapy: The ENCHANTED trial. Eur J Neurol 2020; 28:783-793. [PMID: 33069172 DOI: 10.1111/ene.14598] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 10/14/2020] [Indexed: 02/05/2023]
Abstract
BACKGROUND AND PURPOSE This was an investigation of the differential effects of early intensive versus guideline-recommended blood pressure (BP) lowering between lacunar and non-lacunar acute ischaemic stroke (AIS) in the BP arm of the Enhanced Control of Hypertension and Thrombolysis Stroke Study (ENCHANTED). METHODS In 1,632 participants classified as having definite or probable lacunar (n = 454 [27.8%]) or non-lacunar AIS according to pre-specified definitions based upon clinical and adjudicated imaging findings, mean BP changes over days 0-7 were plotted, and systolic BP differences by treatment between subgroups were estimated in generalized linear models. Logistic regression models were used to estimate the BP treatment effects on 90-day outcomes (primary, an ordinal shift of modified Rankin scale scores) across lacunar and non-lacunar AIS after adjustment for baseline covariables. RESULTS Most baseline characteristics, acute BP and other management differed between lacunar and non-lacunar AIS, but mean systolic BP differences by treatment were comparable at each time point (all pinteraction > 0.12) and over 24 h post-randomization (-5.5, 95% CI -6.5, -4.4 mmHg in lacunar AIS vs. -5.6, 95% CI -6.3, -4.8 mmHg in non-lacunar AIS, pinteraction = 0.93). The neutral effect of intensive BP lowering on functional outcome and the beneficial effect on intracranial haemorrhage were similar for the two subgroups (all pinteraction > 0.19). CONCLUSIONS There were no differences in the treatment effect of early intensive versus guideline-recommended BP lowering across lacunar and non-lacunar AIS.
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Affiliation(s)
- Zien Zhou
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia.,Department of Radiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Chao Xia
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia.,Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Cheryl Carcel
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia.,Department of Neurology, Royal Prince Alfred Hospital, Sydney Health Partners, Sydney, NSW, Australia.,Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - Sohei Yoshimura
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia.,Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Xia Wang
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Candice Delcourt
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia.,Department of Neurology, Royal Prince Alfred Hospital, Sydney Health Partners, Sydney, NSW, Australia.,Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - Alejandra Malavera
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Xiaoying Chen
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Grant Mair
- Division of Neuroimaging Sciences, Edinburgh Imaging and Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Mark Woodward
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia.,The George Institute for Global Health, School of Public Health, Imperial College London, London, UK
| | - John Chalmers
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Andrew M Demchuk
- Departments of Clinical Neurosciences and Radiology, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Richard I Lindley
- The George Institute for Global Health and University of Sydney, Sydney, NSW, Australia
| | - Thompson G Robinson
- Department of Cardiovascular Sciences and NIHR Leicester Biomedical Research Center, University of Leicester, Leicester, UK
| | - Mark W Parsons
- South Western Clinical School, University of New South Wales, Sydney, NSW, Australia.,Department of Medicine, Melbourne Brain Centre, Royal Melbourne Hospital, University of Melbourne, Parkville, Vic, Australia
| | - Joanna M Wardlaw
- Division of Neuroimaging Sciences, Edinburgh Imaging and Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK.,UK Dementia Research Institute, University of Edinburgh, Edinburgh, UK
| | - Craig S Anderson
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia.,Department of Neurology, Royal Prince Alfred Hospital, Sydney Health Partners, Sydney, NSW, Australia.,The George Institute China at Peking University Health Science Center, Beijing, China
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22
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Bai Q, Sheng Z, Liu Y, Zhang R, Yong VW, Xue M. Intracerebral haemorrhage: from clinical settings to animal models. Stroke Vasc Neurol 2020; 5:388-395. [PMID: 33376200 PMCID: PMC7804065 DOI: 10.1136/svn-2020-000334] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 02/21/2020] [Accepted: 02/27/2020] [Indexed: 12/13/2022] Open
Abstract
Spontaneous intracerebral haemorrhage (ICH) is a devastating type of stroke with high mortality and morbidity and for which no effective treatments are available to date. Much experimental and clinical research have been performed to explore its mechanisms regard the subsequent inflammatory cascade and to seek the potential therapeutic strategies. The aim of this review is to discuss insights from clinical settings that have led to the development of numerous animal models of ICH. Some of the current and future challenges for clinicians to understand ICH are also surveyed.
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Affiliation(s)
- Qian Bai
- The Departments of Cerebrovascular Diseases; Henan Medical Key Laboratory of Translational Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhaofu Sheng
- The Departments of Cerebrovascular Diseases; Henan Medical Key Laboratory of Translational Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yang Liu
- The Departments of Cerebrovascular Diseases; Henan Medical Key Laboratory of Translational Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ruiyi Zhang
- The Departments of Cerebrovascular Diseases; Henan Medical Key Laboratory of Translational Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Voon Wee Yong
- Hotchkiss Brain Institute and Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
| | - Mengzhou Xue
- The Departments of Cerebrovascular Diseases; Henan Medical Key Laboratory of Translational Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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23
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Hussein O, Abd Elazim A, Sawalha K, Salam S, Saba K, Hamed M, Peng J, Hinduja A. Role of Non-Perfusion Factors in Mildly Symptomatic Large Vessel Occlusion Stroke. J Stroke Cerebrovasc Dis 2020; 29:105172. [PMID: 32912550 DOI: 10.1016/j.jstrokecerebrovasdis.2020.105172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 06/25/2020] [Accepted: 07/16/2020] [Indexed: 12/23/2022] Open
Abstract
INTRODUCTION Uncertainty regarding reperfusion of mildly-symptomatic (minor) large vessel occlusion (LVO)-strokes exists. Recently, benefits from reperfusion were suggested. However, there is still no strong data to support this. Furthermore, a proportion of those patients don't improve even after non-hemorrhagic reperfusion. Our study evaluated whether or not non-perfusion factors account for such persistent deconditioning. METHODS Patients with identified minor LVO-strokes (NIHSS ≤ 8) from our stroke alert registry between January-2016 and May-2018 were included. Variables/ predictors of outcome were tested using univariate/multivariate logistic and linear regression analyses. Three month-modified ranking scale (mRS) was used to differentiate between favorable (mRS = 0-2) and unfavorable outcomes (mRS = 3-6). RESULTS Eighty-one patients were included. Significant differences between the two outcome groups regarding admission-NIHSS and discharge-NIHSS existed (OR = 0.47, 0.49 / p = 0.0005, <0.0001 respectively).The two groups had matching perfusion measures. In the poor outcome group, discharge-NIHSS was unchanged from the admission-NIHSS while in the good outcome group, discharge-NIHSS significantly improved. CONCLUSION Admission and discharge NIHSS are independent predictors of outcome in patients with minor-LVO strokes. Unchanged discharge-NIHSS predicts worse outcomes while improved discharge-NIHSS predicts good outcomes. Unchanged NIHSS in the poor outcome group was independent of the perfusion parameters. In literature, complement activation and pro-inflammatory responses to ischemia might account for the progression of stroke symptoms in major-strokes. Our study concludes similar phenomena might be present in minor-strokes. Therefore, discharge-NIHSS may be useful as a clinical marker for future therapies.
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Affiliation(s)
- Omar Hussein
- University of New Mexico Health Sciences Center, Department of Neurology, Albuquerque, New Mexico, USA.
| | - Ahmed Abd Elazim
- University of New Mexico Health Sciences Center, Department of Neurology, Albuquerque, New Mexico, USA
| | - Khalid Sawalha
- University of Massachusetts-Baystate Medical Center - Department of Internal-Medicine, 3601 Main St, Springfield, MA 01107, USA
| | - Smeer Salam
- The Ohio State University Wexner Medical Center, Department of Neurology, 410 W 10th Ave, Columbus, USA
| | - Kasser Saba
- Atrium Health, Department of Neurology, Charlotte, North Carolina, USA
| | - Mohammad Hamed
- The Ohio State University Wexner Medical Center, Department of Neurology, 410 W 10th Ave, Columbus, USA
| | - Juan Peng
- The Ohio State University, Department of Biostatistics, 410 W 10th Ave, Columbus, USA
| | - Archana Hinduja
- The Ohio State University Wexner Medical Center, Department of Neurology, 410 W 10th Ave, Columbus, USA
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24
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Beard DJ, Li Z, Schneider AM, Couch Y, Cipolla MJ, Buchan AM. Rapamycin Induces an eNOS (Endothelial Nitric Oxide Synthase) Dependent Increase in Brain Collateral Perfusion in Wistar and Spontaneously Hypertensive Rats. Stroke 2020; 51:2834-2843. [PMID: 32772681 DOI: 10.1161/strokeaha.120.029781] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
BACKGROUND AND PURPOSE Rapamycin is a clinically approved mammalian target of rapamycin inhibitor that has been shown to be neuroprotective in animal models of stroke. However, the mechanism of rapamycin-induced neuroprotection is still being explored. Our aims were to determine if rapamycin improved leptomeningeal collateral perfusion, to determine if this is through eNOS (endothelial nitric oxide synthase)-mediated vessel dilation and to determine if rapamycin increases immediate postreperfusion blood flow. METHODS Wistar and spontaneously hypertensive rats (≈14 weeks old, n=22 and n=15, respectively) were subjected to ischemia by middle cerebral artery occlusion (90 and 120 minutes, respectively) with or without treatment with rapamycin at 30-minute poststroke. Changes in middle cerebral artery and collateral perfusion territories were measured by dual-site laser Doppler. Reactivity to rapamycin was studied using isolated and pressurized leptomeningeal anastomoses. Brain injury was measured histologically or with triphenyltetrazolium chloride staining. RESULTS In Wistar rats, rapamycin increased collateral perfusion (43±17%), increased reperfusion cerebral blood flow (16±8%) and significantly reduced infarct volume (35±6 versus 63±8 mm3, P<0.05). Rapamycin dilated leptomeningeal anastomoses by 80±9%, which was abolished by nitric oxide synthase inhibition. In spontaneously hypertensive rats, rapamycin increased collateral perfusion by 32±25%, reperfusion cerebral blood flow by 44±16%, without reducing acute infarct volume 2 hours postreperfusion. Reperfusion cerebral blood flow was a stronger predictor of brain damage than collateral perfusion in both Wistar and spontaneously hypertensive rats. CONCLUSIONS Rapamycin increased collateral perfusion and reperfusion cerebral blood flow in both Wistar and comorbid spontaneously hypertensive rats that appeared to be mediated by enhancing eNOS activation. These findings suggest that rapamycin may be an effective acute therapy for increasing collateral flow and as an adjunct therapy to thrombolysis or thrombectomy to improve reperfusion blood flow.
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Affiliation(s)
- Daniel J Beard
- Acute Stroke Programme, Radcliffe Department of Medicine, University of Oxford, United Kingdom (D.J.B., A.M.S., Y.C., A.M.B.)
- School of Biomedical Science and Pharmacy, The University of Newcastle, Australia (D.J.B.)
| | - Zhaojin Li
- Department of Neurological Sciences, The University of Vermont, Burlington (Z.L., M.J.C.)
| | - Anna M Schneider
- Acute Stroke Programme, Radcliffe Department of Medicine, University of Oxford, United Kingdom (D.J.B., A.M.S., Y.C., A.M.B.)
| | - Yvonne Couch
- Acute Stroke Programme, Radcliffe Department of Medicine, University of Oxford, United Kingdom (D.J.B., A.M.S., Y.C., A.M.B.)
| | - Marilyn J Cipolla
- Department of Neurological Sciences, The University of Vermont, Burlington (Z.L., M.J.C.)
| | - Alastair M Buchan
- Acute Stroke Programme, Radcliffe Department of Medicine, University of Oxford, United Kingdom (D.J.B., A.M.S., Y.C., A.M.B.)
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25
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Chu YM, Choi KS. Effectiveness of patient education in acute stroke: a comparison between a customised computer system and a pictorial information booklet. BMJ Health Care Inform 2020; 27:bmjhci-2020-100144. [PMID: 32816839 PMCID: PMC7430415 DOI: 10.1136/bmjhci-2020-100144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 07/07/2020] [Accepted: 07/08/2020] [Indexed: 11/03/2022] Open
Abstract
BackgroundPatients who develop acute stroke are at high risk for deterioration in the first 48–72 hours after admission. An effective educational intervention is needed.ObjectiveThis study aimed to examine the applicability of the customised interactive computer education system (CICS) in patients who had a stroke in the early acute phase in order to determine the efficacy of the education system in (1) information satisfaction and (2) physiological related management compliance.MethodsThe prospective non-blinded randomised controlled study was conducted in an acute stroke unit of a local hospital in Hong Kong from March to August 2019. Chinese participants were selected if they were at least 18 years of age, experienced a minor stroke within 3 days. The exclusion criteria were communication problem and comorbidity with another acute disease. On the first day of admission, participants were allocated to the CICS and booklet groups, with each group comprising 50 participants. On the third day, the primary outcome, Modified Information Satisfaction Questionnaire for Acute Stroke (MISQ-S), was assessed.ResultsThere was a significant difference in ‘the need to improve information measures’ of the MISQ-S (p=0.04) between the CICS and booklet groups. The management compliance of these two groups did not have difference, but the CICS group had better clinical outcome, though not significant (p=0.387).ConclusionPatient education was needed and feasible in the early acute phase, and the CICS was more efficacious than the booklet. The positive results provided insights into and give a direction to the use of information technology in patient education.
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Affiliation(s)
- Yin Man Chu
- Department of Medicine, Tseung Kwan O Hospital, Tseung Kwan O, Hong Kong
| | - Kup Sze Choi
- School of Nursing, Hong Kong Polytechnic University, Kowloon, Hong Kong
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26
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Hong S, Ahn L, Kwon J, Choi DJ. Acupuncture for Regulating Blood Pressure of Stroke Patients: A Systematic Review and Meta-Analysis. J Altern Complement Med 2020; 26:1105-1116. [PMID: 32744860 DOI: 10.1089/acm.2019.0454] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Background: Blood pressure (BP) after a stroke is affected by autonomic regulation, the Cushing reaction, and basal history of hypertensive, arteriosclerotic conditions. To prevent recurrent stroke attack and its complications, BP must be regulated to within the normal range through monitoring, rest, and medication. Previous studies have reported that acupuncture may be effective in lowering BP in patients with hypertension. Objectives: This study was aimed at evaluating the efficacy of acupuncture in regulating BP in stroke patients, including both cerebral infarction and hemorrhage. Methods: A review was conducted of articles published in English, Korean, Chinese, and Japanese across 16 electronic databases (Pubmed, EMBASE, Cochrane Central Resister of Controlled Trials, AMED, CINAHL, CNKI, Wanfang, VIP, CiNii, and seven Korean databases) up to April 2020. Only randomized controlled trials that evaluated the efficacy of acupuncture for stroke patients were included and meta-analyzed, and BP data and risk of bias were extracted by scanning the full texts. Data analysis was performed by using RevMan 5.3. Results: From the 16 electronic databases, 7623 relevant articles were identified, and 847 stroke patients of 10 trials met the inclusion criteria. Two trials reported that BP was lowered more in the group who had received acupuncture treatment than the group who were treated with conventional medication. Two trials reported that BP was lowered after auricular acupuncture treatment more than those observed in the group receiving conventional medical treatment. Six trials reported that BP in cerebral infarction patients was lower than in the control group. None of the trials reported any adverse events. Conclusions: It was concluded that acupuncture may be a suitable treatment option for regulating BP after stroke. However, the trials are not free from bias. Further reviews would yield positive results if well-designed trials are conducted.
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Affiliation(s)
- Seungcheol Hong
- Department of Internal Medicine, College of Oriental Medicine, Dongguk University, Goyang-si, Republic of Korea.,Department of Oriental Medicine, Armed Force Daejeon Hospital, Daejeon, Republic of Korea
| | - Lib Ahn
- Department of Internal Medicine, College of Oriental Medicine, Dongguk University, Goyang-si, Republic of Korea.,Department of Internal Korean Medicine, Dongguk University Ilsan Oriental Hospital, Dongguk University Medical Centre, Goyang-si, Republic of Korea
| | - JaeHyun Kwon
- Department of Radiology, College of Medicine, Dongguk University, Goyang-si, Republic of Korea.,Department of Radiology, Dongguk University Ilsan Hospital, Dongguk University Medical Centre, Goyang-si, Republic of Korea
| | - Dong-Jun Choi
- Department of Internal Medicine, College of Oriental Medicine, Dongguk University, Goyang-si, Republic of Korea.,Department of Internal Korean Medicine, Dongguk University Ilsan Oriental Hospital, Dongguk University Medical Centre, Goyang-si, Republic of Korea
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27
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Dai L, Cheng A, Hao X, Xu J, Zuo Y, Wang A, Meng X, Li H, Wang Y, Zhao X, Wang Y. Different contribution of SBP and DBP variability to vascular events in patients with stroke. Stroke Vasc Neurol 2020; 5:110-115. [PMID: 32606082 PMCID: PMC7337370 DOI: 10.1136/svn-2019-000278] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 12/03/2019] [Accepted: 01/08/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND High blood pressure variability (BPV) is a novel risk factor for cardiovascular disease. However, the heterogeneity of systolic blood pressure variability (SBPV) and diastolic blood pressure variability (DBPV) for different vascular events remains unclear. This study aims to investigate whether SBPV or DBPV has different contribution to vascular events in patients with acute ischaemic stroke (IS) or transient ischaemic attack (TIA). METHODS Data from the BOSS (blood pressure and clinical outcome in TIA or IS) study were examined for vascular events at 3-month and 1-year follow-up. BPV was defined as the SD and coefficient of variation (CV) of day-to-day measurements within 3 months after IS/TIA. Vascular events include cardiovascular events (myocardial infarction, unstable angina, cardiac death and congestive heart failure) and cerebrovascular events (ischaemic or haemorrhagic stroke). Logistic regression model was used to test the associations between BPV and vascular events. RESULTS Of 2325 patients with IS or TIA, 103 (4.43 %) experienced a recurrent stroke and 64 (2.75 %) had cardiovascular events within 3 months. Day-to-day SBPV was only associated with stroke recurrence (BPVSD: OR, 1.72, 95% CI 1.09 to 2.71; BPVCV: 1.86, 95% CI 1.19 to 2.92), but not cardiovascular events (BPVSD: 1.67, 95% CI 0.94 to 2.94; BPVCV: 1.51, 95% CI 0.86 to 2.64). However, DBPV seems to be related to both stroke (BPVSD: 1.60, 95% CI 1.02 to 2.49; BPVCV: 1.53, 95% CI 0.99 to 2.37) and cardiovascular events (BPVSD: 2.48, 95% CI 1.37 to 4.48; BPVCV: 1.92, 95% CI 1.09 to 3.36). Similar results were found at 1 year. CONCLUSIONS For patients with IS/TIA, stroke recurrence was associated with both SBPV and DBPV; however, cardiovascular events seem to be only related to DBPV.
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Affiliation(s)
- Liye Dai
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Aichun Cheng
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Xiwa Hao
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Department of Neurology, Inner Mongolia Baotou City Central Hospital, Baotou, China
| | - Jie Xu
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Yingting Zuo
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Anxin Wang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Xia Meng
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Hao Li
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Yilong Wang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Xingquan Zhao
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Yongjun Wang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
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28
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Kowalczyk K, Jabłoński B, Kwarciany M, Karaszewski B, Narkiewicz K, Gąsecki D. Changes of augmentation index early after ischaemic stroke predict functional outcome. Blood Press 2020; 29:327-335. [PMID: 32456469 DOI: 10.1080/08037051.2020.1769468] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Purpose: Outcome after ischaemic stroke (AIS) depends on multiple factors, including values of blood pressure (BP) and arterial stiffness (AS) in the early phase. It is also known that stroke outcome is affected by BP variability; however, the influence of AS oscillations in the early phase of stroke on its prognosis is unknown. The aim of our study was to assess the relationship between changes of AS markers and stroke outcome.Materials and methods: Baseline clinical data, BP parameters, and markers of AS (pulse wave velocity [PWV], augmentation index [AIx]) were assessed 1, 6, and >90 days after AIS. The outcomes were defined using modified Rankin scale (mRS) score: early favourable (EFO) and early poor (EPO), as mRS ≤1 and >2 points at discharge, respectively; late favourable (LFO) and late poor (LPO), as mRS ≤1 and >2 points on day >90, respectively.Results: In the recruited 50 patients (62.2 ± 12.1 years, 68% males), BP and PWV decreased while AIx did not change within 90 days after AIS. Twenty-eight patients (56%) had EFO, 10 (20%) - EPO, 29 (58%) - LFO, and 9 (18%) - LPO. In univariate analysis, rise in AIx in days 1-6 was associated with EFO (odds ratio [OR] = 1.09, 95% confidence interval [CI] = 1.02-1.17, p = 0.01) and LFO (OR = 1.08; 95%CI = 1.01-1.14, p = 0.02), whereas decrease in AIx in days 1-6 was associated with EPO (OR = 1.07, 95%CI = 1.00-1.15, p = 0.05). For EFO and LFO, the relationships remained significant after including confounders (p = 0.03 and p = 0.03, respectively).Conclusions: Rise in AIx within one week after ischaemic stroke may be of additional importance in determining better early and late favourable functional outcome.
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Affiliation(s)
- Kamil Kowalczyk
- Department of Adult Neurology, Medical University of Gdańsk, Gdańsk, Poland
| | - Bartosz Jabłoński
- Department of Adult Neurology, Medical University of Gdańsk, Gdańsk, Poland
| | - Mariusz Kwarciany
- Department of Adult Neurology, Medical University of Gdańsk, Gdańsk, Poland
| | | | - Krzysztof Narkiewicz
- Department of Hypertension and Diabetology, Medical University of Gdańsk, Gdańsk, Poland
| | - Dariusz Gąsecki
- Department of Adult Neurology, Medical University of Gdańsk, Gdańsk, Poland
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29
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Chen Z, Mo J, Xu J, Dai L, Cheng A, Yalkun G, Wang A, Meng X, Li H, Wang Y. Effect of Low Diastolic Blood Pressure to Cardiovascular Risk in Patients With Ischemic Stroke or Transient Ischemic Attacks Under Different Systolic Blood Pressure Levels. Front Neurol 2020; 11:356. [PMID: 32536899 PMCID: PMC7267217 DOI: 10.3389/fneur.2020.00356] [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] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 04/14/2020] [Indexed: 12/28/2022] Open
Abstract
Background: In the context of recently updated strategies of pressure management, there is a paucity of evidence on the effect of diastolic blood pressure (DBP) level on adverse events among stroke patients. This study aimed to examine the effect of low DBP (<60 mmHg) under different levels of systolic blood pressure (SBP) on the risk of composite events and stroke recurrence among patients with ischemic stroke (IS) or transient ischemic attack (TIA). Material and Methods: This study was conducted in 2,325 patients with IS or TIA. DBP values were categorized into <60, 60–70, 70–80 (reference), 80–90, and ≥90 mmHg in the main sample and were further categorized as <60 and ≥60 mmHg (reference) when patients were stratified according to SBP levels (<140, <130, and <120 mmHg). The outcomes were defined as recurrent stroke and cumulative composite events (defined as the combination of nonfatal myocardial infarction, nonfatal congestive heart failure, and death) at 1 year. Results: During 1 year of follow-up, a total of 95 composite events and 138 stroke recurrences were identified. The patients with low DBP showed a significantly higher risk of composite events [hazard ratio (HR) = 4.86, 95% confidence interval (CI) = 2.54–8.52], especially the elderly patients (≥60 years); however, this result was not observed for stroke recurrence (HR = 0.90, 95% CI = 0.46–1.74). With the reduction of the SBP levels, the proportion of patients with low DBP increased (6.87, 12.67, and 34.46%), and the risk for composite events persisted. Conclusions: Along with the new target levels of SBP suggested by updated criteria, there is a trend for DBP to be reduced to a harmfully low level, which was associated with an increased risk of composite events among patients with IS or TIA.
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Affiliation(s)
- Zimo Chen
- 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
| | - Jinglin Mo
- 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
| | - Jie Xu
- 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
| | - Liye Dai
- 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
| | - Aichun Cheng
- 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
| | - Gulbahram Yalkun
- 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
| | - Anxin Wang
- 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
| | - Xia Meng
- 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
| | - Hao Li
- 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
| | - Yongjun Wang
- 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
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30
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Thakkar PC, McGregor AL, Barber PA, Paton JFR, Barrett CJ, McBryde FD. Therapeutic Relevance of Elevated Blood Pressure After Ischemic Stroke in the Hypertensive Rats. Hypertension 2020; 75:740-747. [PMID: 31957520 DOI: 10.1161/hypertensionaha.119.14219] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Over 80% of patients exhibit an acute increase in blood pressure (BP) following stroke. Current clinical guidelines make no distinction in BP management between patients with or without prior hypertension. Spontaneously hypertensive (SH) rats were preinstrumented with telemeters to record BP, intracranial pressure, and brain tissue oxygen in the predicted ischemic penumbra for 3 days before and 10 days after transient middle cerebral artery occlusion (n=8 per group) or sham (n=5). Before stroke, BP was either left untreated or chronically treated to a normotensive level (enalapril 10 mg/kg per day). Poststroke elevations in BP were either left uncontrolled, controlled (to the prestroke baseline level), or overcontrolled (to a normotensive level) via subcutaneous infusion of labetalol. Baseline values of intracranial pressure and brain tissue oxygen were similar between all groups, whereas BP was lower in treated SH rats (144±3 versus 115±5 mm Hg; P<0.001). Following middle cerebral artery occlusion, a similar rise in BP was observed in untreated (+16±2 mm Hg; P=0.005) and treated SH rats (+13±5 mm Hg; P=0.021). Intervening to prevent BP from increasing after stroke did not worsen outcome. However, reducing BP below prestroke baseline levels was associated with higher intracranial pressure (days 1-3; P<0.001), reduced cerebral perfusion pressure (days 2-4; P<0.001), higher mortality, slower functional recovery and larger infarct volumes. Although treating to maintain BP at the prestroke baseline level was not detrimental, our results suggest that when setting BP targets after stroke, consideration must be given to the potential negative impact of inadvertent excessive BP lowering in subjects with undiagnosed or poorly controlled hypertension.
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Affiliation(s)
- Pratik C Thakkar
- From the Department of Physiology, School of Medical Sciences (P.C.T., J.F.R.P., C.J.B., F.D.M.), University of Auckland, Auckland, New Zealand
| | - Ailsa L McGregor
- School of Pharmacy, University of Otago, Dunedin, New Zealand (A.L.M.)
| | - P Alan Barber
- Department of Medicine, Centre for Brain Research, School of Medical Sciences (P.A.B.), University of Auckland, Auckland, New Zealand
| | - Julian F R Paton
- From the Department of Physiology, School of Medical Sciences (P.C.T., J.F.R.P., C.J.B., F.D.M.), University of Auckland, Auckland, New Zealand
| | - Carolyn J Barrett
- From the Department of Physiology, School of Medical Sciences (P.C.T., J.F.R.P., C.J.B., F.D.M.), University of Auckland, Auckland, New Zealand
| | - Fiona D McBryde
- From the Department of Physiology, School of Medical Sciences (P.C.T., J.F.R.P., C.J.B., F.D.M.), University of Auckland, Auckland, New Zealand
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31
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Amatangelo MP, Thomas SB. Priority Nursing Interventions Caring for the Stroke Patient. Crit Care Nurs Clin North Am 2019; 32:67-84. [PMID: 32014162 DOI: 10.1016/j.cnc.2019.11.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Nearly 20% of all patients with ischemic stroke will require care in an intensive care unit (ICU), particularly those who have received intravenous alteplase or endovascular therapy. Prioritizing nursing intervention and intensive care monitoring can improve patient outcomes and reduce disability. A collaborative interdisciplinary team approach best facilitates the ICU care of an acute stroke patient.
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Affiliation(s)
- Mary P Amatangelo
- Neurology, Stroke, Neurocritical Care, Brigham and Women's Hospital, 15 Francis Street, BB 335, Boston, MA 02115, USA.
| | - Sarah Beth Thomas
- Neuroscience/Critical Care, Brigham Health/Brigham and Women's Hospital, 75 Francis Street, Tower 10-65, Boston, MA 02115, USA
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32
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Chen G, Wang A, Li S, Zhao X, Wang Y, Li H, Meng X, Knibbs LD, Bell ML, Abramson MJ, Wang Y, Guo Y. Long-Term Exposure to Air Pollution and Survival After Ischemic Stroke. Stroke 2019; 50:563-570. [PMID: 30741622 DOI: 10.1161/strokeaha.118.023264] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background and Purpose- China bears a heavy burden of stroke because of its large population of elderly people and the propensity for stroke. Previous studies have examined the association between air pollution and stroke mortality or hospital admission. However, the global evidence for adverse effects of air pollution on survival after stroke is scarce. Methods- We used the first national hospital-based prospective registry cohort of stroke in China, which included 12 291 ischemic stroke patients who visited hospitals during 2007 to 2008. All patients were followed for 1-year poststroke. Deaths during the follow-up period were recorded. Participants' 3-year prestroke exposures to ambient PM1, PM2.5, PM10 (particulate matter with aerodynamic diameters ≤1, ≤2.5, and ≤10 μm, respectively) and NO2 (nitrogen dioxide) were estimated by machine learning algorithms with satellite remote sensing, land use information, and meteorological data. Cox proportional hazards models were used to examine the association between air pollution and survival after ischemic stroke. Results- In total, 1649 deaths were identified during the 1-year follow-up period. After controlling for potential confounders, significant associations were observed between exposure to PM1 and PM2.5 and incident fatal ischemic stroke. The corresponding hazard ratios and 95% CIs associated with 10 µg/m3 increase in PM1 and PM2.5 were 1.05 (1.02-1.09) and 1.03 (1.00-1.06), respectively. No significant association was observed for PM10 or NO2 (hazard ratios and 95% CIs, 1.01 [1.00-1.03] and 1.03 [0.99-1.06], respectively). Higher hazard ratios (and 95% CIs) were observed for male, elderly and obese individuals. Conclusions- Prestroke exposure to PM1 and PM2.5 was associated with increased incident fatal ischemic stroke in the year following an ischemic stroke in China. Improved air quality may be beneficial for people to recover from stroke.
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Affiliation(s)
- Gongbo Chen
- From the Department of Global Health, School of Health Sciences, Wuhan University, China (G.C.).,Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia (G.C., S.L., M.J.A., Y.G.)
| | - Anxin Wang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, China (A.W., X.Z., Yilong Wang, H.L., X.M., Yongjun Wang).,China National Clinical Research Center for Neurological Diseases, Beijing (A.W., X.Z., Y.-L.W., H.L., X.M., Y.-J.W.)
| | - Shanshan Li
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia (G.C., S.L., M.J.A., Y.G.)
| | - Xingquan Zhao
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, China (A.W., X.Z., Yilong Wang, H.L., X.M., Yongjun Wang).,China National Clinical Research Center for Neurological Diseases, Beijing (A.W., X.Z., Y.-L.W., H.L., X.M., Y.-J.W.)
| | - Yilong Wang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, China (A.W., X.Z., Yilong Wang, H.L., X.M., Yongjun Wang).,China National Clinical Research Center for Neurological Diseases, Beijing (A.W., X.Z., Y.-L.W., H.L., X.M., Y.-J.W.)
| | - Hao Li
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, China (A.W., X.Z., Yilong Wang, H.L., X.M., Yongjun Wang).,China National Clinical Research Center for Neurological Diseases, Beijing (A.W., X.Z., Y.-L.W., H.L., X.M., Y.-J.W.)
| | - Xia Meng
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, China (A.W., X.Z., Yilong Wang, H.L., X.M., Yongjun Wang).,China National Clinical Research Center for Neurological Diseases, Beijing (A.W., X.Z., Y.-L.W., H.L., X.M., Y.-J.W.)
| | - Luke D Knibbs
- School of Public Health, The University of Queensland, Brisbane, Australia (L.D.K.)
| | - Michelle L Bell
- School of Forestry and Environmental Studies, Yale University, New Haven, CT (M.L.B.)
| | - Michael J Abramson
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia (G.C., S.L., M.J.A., Y.G.)
| | - Yongjun Wang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, China (A.W., X.Z., Yilong Wang, H.L., X.M., Yongjun Wang).,China National Clinical Research Center for Neurological Diseases, Beijing (A.W., X.Z., Y.-L.W., H.L., X.M., Y.-J.W.)
| | - Yuming Guo
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia (G.C., S.L., M.J.A., Y.G.)
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33
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Thakkar P, McGregor A, Barber PA, Paton JF, Barrett C, McBryde F. Hypertensive Response to Ischemic Stroke in the Normotensive Wistar Rat. Stroke 2019; 50:2522-2530. [DOI: 10.1161/strokeaha.119.026459] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background and Purpose—
Over 80% of ischemic stroke patients show an abrupt increase in arterial blood pressure in the hours and days following ischemic stroke. Whether this poststroke hypertension is beneficial or harmful remains controversial and the underlying physiological basis is unclear.
Methods—
To investigate the dynamic cardiovascular response to stroke, adult Wistar rats (n=5–8 per group, 393±34 g) were instrumented with telemeters to blood pressure, intracranial pressure, renal sympathetic nerve activity, and brain tissue oxygen in the predicted penumbra (P
o
2
). After 2 weeks of recovery, cardiovascular signals were recorded for a 3-day baseline period, then ischemic stroke was induced via transient middle cerebral artery occlusion, or sham surgery. Cardiovascular signals were then recorded for a further 10 days, and the functional sensorimotor recovery assessed using the cylinder and sticky dot tests.
Results—
Baseline values of all variables were similar between groups. Compared to sham, in the 2 days following stroke middle cerebral artery occlusion produced an immediate, transient rise above baseline in mean blood pressure (21±3 versus 2±4 mm Hg;
P
<0.001), renal sympathetic nerve activity (54±11% versus 7±4%;
P
=0.006), and cerebral perfusion pressure (12±5 versus 1±4;
P
≤0.001). Intracranial pressure increased more slowly, peaking 3 days after middle cerebral artery occlusion (14±6 versus −1±1 mm Hg;
P
<0.001). Treating with the antihypertensive agent nifedipine after stroke (1.5–0.75 mg/kg per hour SC) ameliorated poststroke hypertension (12±3 mm Hg on day 1;
P
=0.041), abolished the intracranial pressure increase (3±1;
P
<0.001) and reduced cerebral perfusion pressure (10±3 mm Hg;
P
=0.017). Preventing poststroke hypertension affected neither the recovery of sensorimotor function nor infarct size.
Conclusions—
These findings suggest that poststroke hypertension is immediate, temporally matched to an increase in sympathetic outflow, and elevates cerebral perfusion pressure for several days after stroke, which may enhance cerebral perfusion. Preventing poststroke hypertension does not appear to worsen prognosis after stroke in young, normotensive, and otherwise healthy rats.
Visual Overview—
An online
visual overview
is available for this article.
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Affiliation(s)
- Pratik Thakkar
- From the Department of Physiology (P.T., J.F.R.P., C.B., F.M.), School of Medical Sciences, University of Auckland, New Zealand
| | - Ailsa McGregor
- School of Pharmacy, University of Otago, Dunedin, New Zealand (A.M.)
| | - Paul Alan Barber
- Centre for Brain Research (P.A.B.), School of Medical Sciences, University of Auckland, New Zealand
| | - Julian F.R. Paton
- From the Department of Physiology (P.T., J.F.R.P., C.B., F.M.), School of Medical Sciences, University of Auckland, New Zealand
| | - Carolyn Barrett
- From the Department of Physiology (P.T., J.F.R.P., C.B., F.M.), School of Medical Sciences, University of Auckland, New Zealand
| | - Fiona McBryde
- From the Department of Physiology (P.T., J.F.R.P., C.B., F.M.), School of Medical Sciences, University of Auckland, New Zealand
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34
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Liu Y, Manners J, Bittar Y, Chou SHY, Gopalakrishnan V. Towards precision critical care management of blood pressure in hemorrhagic stroke patients using dynamic linear models. PLoS One 2019; 14:e0220283. [PMID: 31381589 PMCID: PMC6681940 DOI: 10.1371/journal.pone.0220283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 07/14/2019] [Indexed: 11/18/2022] Open
Abstract
Finding optimal blood pressure (BP) target and BP treatment after acute ischemic or hemorrhagic strokes is an area of controversy and a significant unmet need in the critical care of stroke victims. Numerous large prospective clinical trials have been done to address this question but have generated neutral or conflicting results. One major limitation that may have contributed to so many neutral or conflicting clinical trial results is the "one-size fit all" approach to BP targets, while the optimal BP target likely varies between individuals. We address this problem with the Acute Intervention Model of Blood Pressure (AIM-BP) framework: an individualized, human interpretable model of BP and its control in the acute care setting. The framework consists of two components: one, a model of BP homeostasis and the various effects that perturb it; and two, a parameter estimator that can learn clinically important model parameters on a patient by patient basis. By estimating the parameters of the AIM-BP model for a given patient, the effectiveness of antihypertensive medication can be quantified separately from the patient's spontaneous BP trends. We hypothesize that the AIM-BP is a sufficient framework for estimating parameters of a homeostasis perturbation model of a stroke patient's BP time course and the AIM-BP parameter estimator can do so as accurately and consistently as a state-of-the-art maximum likelihood estimation method. We demonstrate that this is the case in a proof of concept of the AIM-BP framework, using simulated clinical scenarios modeled on stroke patients from real world intensive care datasets.
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Affiliation(s)
- Yuzhe Liu
- Department of Biomedical Informatics, University of Pittsburgh, Pittsburgh, PA, United States of America
| | - Jody Manners
- Department of Neurology, Naval Medical Center Portsmouth, Portsmouth, VA, United States of America
| | - Yazan Bittar
- Lewis Katz School of Medicine, Temple University, Philadelphia, PA, United States of America
| | - Sherry H-Y. Chou
- Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
- Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
- Department of Neurosurgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Vanathi Gopalakrishnan
- Department of Biomedical Informatics, University of Pittsburgh, Pittsburgh, PA, United States of America
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35
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Wijenayake Galagamage IDK, Sujith A, Kiringodage AK. Isolated pontine involvement in posterior reversible encephalopathy syndrome with coincidental acute ischaemic stroke. BMJ Case Rep 2019; 12:12/4/e227132. [PMID: 30996063 DOI: 10.1136/bcr-2018-227132] [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] [Indexed: 12/11/2022] Open
Abstract
Posterior reversible encephalopathy syndrome (PRES) is a cliniconeuroradiological syndrome characterised by a unique reversible pattern on imaging and total regression of clinical symptoms and signs. We describe an unusual case of PRES with isolated pontine involvement with coincidental acute ischaemic stroke in a 60-year-old man who presented with headache, unsteadiness of gait, blurred vision and elevated blood pressure. MRI scan revealed an expanded pons with diffuse T2 and Fluid attenuated Inversion Recovery (FLAIR) hyperintensities and an acute infarct in the right temporal lobe. A diagnosis of PRES was considered most likely after exclusion of other differentials and the patient was started on antihypertensive treatment as for hypertensive encephalopathy. He became asymptomatic after controlling blood pressure and the follow-up MRI scan at 3 weeks showed complete resolution of the pontine high signals which confirmed the diagnosis of PRES.
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Affiliation(s)
| | - Anjali Sujith
- Radiology, Basildon & Thurrock University Hospitals, Basildon, UK
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36
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Munakomi S. Reader response: The systolic blood pressure sweet spot after intracerebral hemorrhage: 130 mm Hg? Neurology 2019; 92:774-775. [PMID: 30988088 DOI: 10.1212/wnl.0000000000007309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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37
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Pretreatment Blood Pressure is a Simple Predictor of Hemorrhagic Infarction after Intravenous Recombinant Tissue Plasminogen Activator (rt-PA) Therapy. J Stroke Cerebrovasc Dis 2019; 28:1979-1986. [PMID: 30982718 DOI: 10.1016/j.jstrokecerebrovasdis.2019.03.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 03/07/2019] [Accepted: 03/16/2019] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Hemorrhagic infarction (HI) is among the most severe complications that can occur following the administration of intravenous recombinant tissue plasminogen activator (rt-PA). In the present study, we aimed to determine the optimal cut-off points of blood pressure (BP) for HI after rt-PA treatment, and to compare our findings with those for other prediction models. METHODS We analyzed data from 109 consecutive patients with stroke treated at our hospital between 2009 and 2016. HI was confirmed via computed tomography or magnetic resonance imaging. Patients were classified into a symptomatic HI group, an asymptomatic HI group, and a non-HI group. BP was measured on admission and before rt-PA treatment. Glucose Race Age Sex Pressure Stroke Severity (GRASPS) and Totaled Health Risks in Vascular Events (THRIVE) scores were also calculated. Receiver operating characteristic (ROC) analysis was used to determine factors associated with symptomatic and asymptomatic HI. RESULTS Among the 109 total patients, 25 patients developed symptomatic HI, while 22 patients developed asymptomatic HI. ROC analysis for predicting symptomatic and asymptomatic HI revealed that the area under the curve for pretreatment systolic BP (SBP) was .88 (95% confidence interval[CI]: .83-.94), while those for GRASPS and THRIVE scores were .75 (95% CI: .66-.85) and .69 (95% CI: .59-.79), respectively. We identified an optimal cut-off point of 160 mm Hg (sensitivity: 82.3%; specificity: 76.6%; diagnostic accuracy: 80.0%; positive predictive value: 76.6%; negative predictive value: 82.5%). CONCLUSIONS Pre-treatment SBP may be a simple predictor of symptomatic and asymptomatic HI in patients with stroke undergoing rt-PA treatment.
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38
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Teng RS, Tan BY, Miny S, Syn NL, Ho AF, Ngiam NJ, Yeo LL, Choong AM, Sharma VK. Effect of Pretreatment Blood Pressure on Outcomes in Thrombolysed Acute Ischemic Stroke Patients: A Systematic Review and Meta-analysis. J Stroke Cerebrovasc Dis 2019; 28:906-919. [DOI: 10.1016/j.jstrokecerebrovasdis.2018.12.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Revised: 11/16/2018] [Accepted: 12/08/2018] [Indexed: 11/26/2022] Open
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39
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Abstract
Acute ischemic stroke is a major cause of mortality and morbidity in the United States and worldwide. Despite the development of specialized stroke centers, mortality and morbidity as a result of acute ischemic strokes can and do happen anywhere. These strokes are emergency situations requiring immediate intervention. This article covers the fundamentals of care involved in treating patients with acute ischemic stroke, including essentials for the initial evaluation, basic neuroimaging, reperfusion therapies, critical care management, and palliative care, as well as current controversies. National guidelines and current research are presented, along with recommendations for implementation.
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Affiliation(s)
- Bryan Boling
- Bryan Boling is Advanced Practice Provider, Department of Anesthesiology, Division of Critical Care, University of Kentucky, 800 Rose St, Suite N204, Lexington, KY 40536 . Katie Keinath is Advanced Practice Provider, Department of Anesthesiology, Division of Critical Care, University of Kentucky, Lexington, Kentucky
| | - Katie Keinath
- Bryan Boling is Advanced Practice Provider, Department of Anesthesiology, Division of Critical Care, University of Kentucky, 800 Rose St, Suite N204, Lexington, KY 40536 . Katie Keinath is Advanced Practice Provider, Department of Anesthesiology, Division of Critical Care, University of Kentucky, Lexington, Kentucky
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40
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Alloubani A, Saleh A, Abdelhafiz I. Hypertension and diabetes mellitus as a predictive risk factors for stroke. Diabetes Metab Syndr 2018; 12:577-584. [PMID: 29571978 DOI: 10.1016/j.dsx.2018.03.009] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 03/15/2018] [Indexed: 12/26/2022]
Abstract
BACKGROUND Stroke is becoming a major challenge in healthcare systems, and this has necessitated the study of the various risk factors. As the number of people with hypertension, diabetes mellitus and obesity increases, the problem is expected to worsen. This review paper evaluates what can be done to eliminate or reduce the risk of stroke. OBJECTIVE The aim of the research is to evaluate the risk factors for stroke. The paper also aims to understand how these risks can be handled to avoid incidences of stroke. METHOD Published clinical trials of stroke risk factors studies were recognised by a search of EMBASE and MEDLINE databases with keywords hypertension, blood pressure, diabetes mellitus, stroke or cardiovascular disease, or prospective study, and meta-analysis. RESULTS The findings of this review are that the prevention of stroke starts with identifying risk factors for stroke, most of the patients diagnosed with stroke have various risk factors. Consequently, it is a very significant to identify all the risk factors for stroke as well as to teach the patient how to dominate them. CONCLUSION after summarising all the studies mentioned in the paper, it can be established that hypertension and diabetes mellitus are a stroke risk factors and correlated in patients with atherosclerosis.
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Affiliation(s)
- Aladeen Alloubani
- King Hussein Cancer Center, Nursing Supervisor for Research & Evidence Based Practice, Amman, Jordan.
| | - Abdulmoneam Saleh
- University of Tabuk, Family Medicine, Faculty of Medicine, Tabuk, Saudi Arabia
| | - Ibrahim Abdelhafiz
- Al-Ghad International Health Sciences Colleges, Health Management, Najran, Saudi Arabia
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42
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Li LJ, Yang Y, Guan BY, Chen Q, Wang AX, Wang YJ, Zhang N, Wang CX. Insomnia is associated with increased mortality in patients with first-ever stroke: a 6-year follow-up in a Chinese cohort study. Stroke Vasc Neurol 2018; 3:197-202. [PMID: 30637124 PMCID: PMC6312128 DOI: 10.1136/svn-2017-000136] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 02/19/2018] [Accepted: 03/04/2018] [Indexed: 01/24/2023] Open
Abstract
Objective Insomnia is a highly prevalent disorder among patients suffering from stroke. The association between insomnia and stroke mortality is less studied, particularly using the latest diagnostic criteria. The current study examined the relationship between insomnia and mortality among patients with first-evonal hazard models were used to calculate HRs for stroke er stroke in China. Methods Patients with acute cerebrovascular diseases (stroke) were recruited from 56 hospitals in mainland China. Insomnia was defined as difficulty falling asleep, or difficulty staying asleep or waking up early, for at least two consecutive visits. Demographic data, medical history and clinical data were collected. Four follow-up visits occurred within the first year after stroke, and the last follow-up call was conducted 6 years later. Cox proportional hazard models were used to calculate HRs for stroke mortality. Results Insomnia was reported by 38.4% (489/1273) of patients at baseline. During the 6 years of follow-up, after adjusting for all confounders, insomnia was found to be associated with increased mortality (HR=1.66, 95% CI 1.10 to 2.48). Old age (HR=1.08, 95% CI 1.06 to 1.10), stroke recurrence in the first year of follow-up (HR=2.53, 95% CI 1.48 to 4.31) and stroke survivors with hypertension (HR=1.62, 95% CI 1.04 to 2.53) had substantially higher risk of mortality. Conclusions Besides old age, stroke recurrence in the first year of follow-up and hypertension, insomnia is associated with increased risk of mortality in patients with first-ever stroke in China. More studies about prompt and efficient interventions for insomnia are expected in the future. Trial registration number rctn62169508.
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Affiliation(s)
- Li-Jun Li
- Department of Neuropsychiatry, Behavioral Neurology and Sleep Center, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China.,Department of Neurology, Beijing Tian Tan 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
| | - Yang Yang
- Department of Neuropsychiatry, Behavioral Neurology and Sleep Center, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China.,Department of Neurology, Beijing Tian Tan 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
| | - Bo-Yuan Guan
- Department of Neuropsychiatry, Behavioral Neurology and Sleep Center, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China.,Department of Neurology, Beijing Tian Tan 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
| | - Qi Chen
- Department of Neuropsychiatry, Behavioral Neurology and Sleep Center, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China.,Department of Neurology, Beijing Tian Tan 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
| | - An-Xin Wang
- Department of Neurology, Beijing Tian Tan 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
| | - Yong-Jun Wang
- Department of Neurology, Beijing Tian Tan 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
| | - Ning Zhang
- Department of Neuropsychiatry, Behavioral Neurology and Sleep Center, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China.,Department of Neurology, Beijing Tian Tan 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
| | - Chun-Xue Wang
- Department of Neuropsychiatry, Behavioral Neurology and Sleep Center, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China.,Department of Neurology, Beijing Tian Tan 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
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Managing high blood pressure during acute ischemic stroke and intracerebral hemorrhage. Curr Opin Neurol 2018; 31:8-13. [DOI: 10.1097/wco.0000000000000508] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
The nitric oxide donor, glyceryl trinitrate (GTN), is a candidate treatment for the management of acute stroke with haemodynamic and potential reperfusion and neuroprotective effects. When administered as a transdermal patch during the acute and subacute phases after stroke, GTN was safe, lowered blood pressure, maintained cerebral blood flow, and did not induce cerebral steal or alter functional outcome. However, when given within 6 h of stroke onset, GTN reduced death and dependency (odds ratio 0.52; 95% confidence interval 0.34-0.78), death, disability, cognitive impairment and mood disturbance, and improved quality of life (data from two trials, n = 312). In a pooled analysis of four studies (n = 186), GTN reduced between-visit systolic blood pressure variability over days 1-7 compared with no GTN (mean difference -2.09; 95% confidence interval -3.83 to -0.35; p = 0.019). The efficacy of GTN given in the ultra-acute/pre-hospital setting is currently being assessed and, if found to be beneficial, the implications for hyperacute stroke practice are significant. Here, we discuss the evidence to date, potential mechanisms of action and future possibilities, including unanswered questions, for the therapeutic potential of GTN in acute stroke.
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