Association of plasma osteoprotegerin levels with stroke severity and functional outcome in acute ischaemic stroke patients

Biomarkers ◽  
2012 ◽  
Vol 17 (8) ◽  
pp. 738-744 ◽  
Author(s):  
Tae-Jin Song ◽  
Jinkwon Kim ◽  
Seung-Hee Yang ◽  
Ji Hye Park ◽  
Hye Sun Lee ◽  
...  
BMJ Open ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. e038180 ◽  
Author(s):  
Elizabeth Holliday ◽  
Thomas Lillicrap ◽  
Timothy Kleinig ◽  
Philip M C Choi ◽  
Jane Maguire ◽  
...  

IntroductionIntravenous thrombolysis (IVT) with recombinant tissue plasminogen activator (rt-PA) is the only approved pharmacological reperfusion therapy for acute ischaemic stroke. Despite population benefit, IVT is not equally effective in all patients, nor is it without significant risk. Uncertain treatment outcome prediction complicates patient treatment selection. This study will develop and validate predictive algorithms for IVT response, using clinical, radiological and blood-based biomarker measures. A secondary objective is to develop predictive algorithms for endovascular thrombectomy (EVT), which has been proven as an effective reperfusion therapy since study inception.Methods and analysisThe Targeting Optimal Thrombolysis Outcomes Study is a multicenter prospective cohort study of ischaemic stroke patients treated at participating Australian Stroke Centres with IVT and/or EVT. Patients undergo neuroimaging using multimodal CT or MRI at baseline with repeat neuroimaging 24 hours post-treatment. Baseline and follow-up blood samples are provided for research use. The primary outcome is good functional outcome at 90 days poststroke, defined as a modified Rankin Scale (mRS) Score of 0–2. Secondary outcomes are reperfusion, recanalisation, infarct core growth, change in stroke severity, poor functional outcome, excellent functional outcome and ordinal mRS at 90 days. Primary predictive models will be developed and validated in patients treated only with rt-PA. Models will be built using regression methods and include clinical variables, radiological measures from multimodal neuroimaging and blood-based biomarkers measured by mass spectrometry. Predictive accuracy will be quantified using c-statistics and R2. In secondary analyses, models will be developed in patients treated using EVT, with or without prior IVT, reflecting practice changes since original study design.Ethics and disseminationPatients, or relatives when patients could not consent, provide written informed consent to participate. This study received approval from the Hunter New England Local Health District Human Research Ethics Committee (reference 14/10/15/4.02). Findings will be disseminated via peer-reviewed publications and conference presentations.


Author(s):  
Sumeet Singh ◽  
Harpreet Singh ◽  
Tarsem Pal Singh

Background: Microalbuminuria is not only a predictor of subsequent kidney disease, but also an indicator of generalised endothelial injury and a manifestation of endothelial dysfunction. The present study is aimed to determine the prevalence of microalbuminuria among non–diabetic ischaemic stroke patients and find its correlation with ischaemic stroke which eventually will aid us in coming up with potent strategies to provide better prevention and cure.Methods: The present study was conducted in Department of Medicine in collaboration with Department of Biochemistry and Department of Radiology, Guru Nanak Dev Hospital, Amritsar, Punjab, India after taking approval from institutional thesis and ethical committee. The study included 60 patients (30 Cases + 30 Controls) in age group 20-80 years diagnosed as stroke and haemorrhage ruled out by NCCT Brain/MRI Brain at admission. Cases were patients with history of hypertension with acute ischaemic stroke. Controls were age and sex matched patients with no history of hypertension with acute ischaemic stroke. The microalbuminuria was assayed by immunoturbimetry. The stroke severity was assessed by NIH Stroke Severity scale. P value less than 0.05 was considered the level of significance.Results: The overall prevalence of microalbuminuria in acute ischaemic stroke patients was 41.67%. When comparing NIH SS (National Institutes of Health Stroke Scale) score with the levels of albumin in urine, there was a significant positive correlation with urinary albumin levels and stroke severity in the patients having urinary albumin levels in microalbuminuria range both in Case group and Control group with P value less than 0.05.Conclusions: Urine albumin excretion had a positive correlation with the NIH SS Score of the patient in acute ischemic stroke. Those with a higher NIH SS Score had a higher rate of urine albumin excretion and vice versa. Therefore, measurement of microalbuminuria may help to assess those who are at increased risk of severe stroke and may require a more aggressive management.


2020 ◽  
Vol 26 (6) ◽  
pp. 793-799
Author(s):  
Nicholas JH Ngiam ◽  
Benjamin YQ Tan ◽  
Ching-Hui Sia ◽  
Bernard PL Chan ◽  
Gopinathan Anil ◽  
...  

Background and aim Bi-directional feedback mechanisms exist between the heart and brain, which have been implicated in heart failure. We postulate that aortic stenosis may alter cerebral haemodynamics and influence functional outcomes after endovascular thrombectomy for acute ischaemic stroke. We compared clinical characteristics, echocardiographic profile and outcomes in patients with or without aortic stenosis that underwent endovascular thrombectomy for large vessel occlusion acute ischaemic stroke. Methods Consecutive acute ischaemic stroke patients with anterior and posterior circulation large vessel occlusion (internal carotid artery, middle cerebral artery and basilar artery) who underwent endovascular thrombectomy were studied. Patients were divided into those with significant aortic stenosis (aortic valve area <1.5 cm2) and without. Univariate and multivariate analyses were employed to compare and determine predictors of functional outcomes measured by modified Rankin scale at three months. Results We identified 26 (8.5%) patients with significant aortic stenosis. These patients were older (median age 76 (interquartile range 68–84) vs. 67 (interquartile range 56–75) years, p = 0.001), but similar in terms of medical comorbidities and echocardiographic profile. Rates of successful recanalisation (73.1% vs. 78.0%), symptomatic intracranial haemorrhage (7.7% and 7.9%) and mortality (11.5% vs. 12.6%) were similar. Significant aortic stenosis was independently associated with poorer functional outcome (modified Rankin scale >2) at three months (adjusted odds ratio 2.7, 95% confidence interval 1.1–7.5, p = 0.048), after adjusting for age, door-to-puncture times, stroke severity and rates of successful recanalisation. Conclusion In acute ischaemic stroke patients managed with endovascular thrombectomy, significant aortic stenosis is associated with poor functional outcome despite comparable recanalisation rates. Larger cohort studies are needed to explore this relationship further.


Author(s):  
Indu Bhana ◽  
Archana Ojha ◽  
Rajendra Kumar Pandey ◽  
Durgvijay Singh ◽  
Mahendra Chourasiya

Introduction: India reports high prevalence of stroke, both in rural and urban areas. Secondary prevention is very important in patients with stroke to reduce the morbidity and mortality associated with it. Atrial Fibrillation (AF) is an important risk factor for stroke which can lead to cerebrovascular insult. Aim: To study the prevalence of AF in patients with acute ischaemic stroke and to obtain the association between the parameters such as age, gender, stroke territory and stroke severity by National Institute of Health Stroke Scale (NIHSS). Materials and Methods: In this multicentric cohort study, 150 patients with acute ischaemic stroke (new onset or recurrent) were studied at tertiary care centres located in Indore (Madhya Pradesh), Prayagraj, Moradabad and Lucknow (Uttar Pradesh) from January 2020 to January 2021. Age, gender, stroke territory and stroke severity by NIHSS was recorded and compared between those with and without AF. The Chi-square test was used to assess the association and obtaining significance. Results: Prevalence of AF in patients with stroke was 8% (n=12), which was significantly high in female population (8 out of 12; p=0.025), those with age more than 60 years (10 out of 12; p=0.011), with atrial dilatation (9 out of 12; p=0.124), patients with severe stroke as per NIHSS (7 out of 12; p=0.001) and those with poor outcome (8 out of 12; p=0.012). Conclusion: In the present study, 8% of the stroke patients had AF with stroke. Elderly age, female sex, and large atrial size on Echocardiogram (ECHO) should be intensively investigated for AF in stroke patients.


BMJ Open ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. e045559
Author(s):  
Xuelei Zhang ◽  
Anxin Wang ◽  
Jing Yu Zhang ◽  
Baixue Jia ◽  
Xiaochuan Huo ◽  
...  

IntroductionAs a neuroprotective medication, butylphthalide (NBP) may help protect against cerebral ischaemic injury. However, evidence on whether NBP influences the outcomes of patients who had acute ischaemic stroke who are receiving revascularisation treatment is limited. This study aims to evaluate whether additional NBP therapy can improve the functional outcome of patients who receive intravenous recombinant tissue plasminogen activator and/or endovascular treatment (EVT).Methods and analysisThe study will be a randomised, double-blind, placebo-controlled, multiple-centre, parallel group trial. The sample size is estimated at 1200 patients. Eligible patients will be randomised at a 1:1 ratio to receive either NBP or placebo daily for 90 days, which will include 14 days of injections and 76 days of capsules. The first use of NBP/placebo will be started within 6 hours of onset of ischaemic stroke. The primary outcome is the functional outcome as assessed by the 90-day modified Rankin Scale, adjusted for baseline scores on the National Institutes of Health Stroke Scale. The primary safety outcome is the percentage of serious adverse events during the 90 days of treatment. This trial will determine whether NBP medication benefits patients who had acute ischaemic stroke who receive intravenous thrombolysis or EVT.Ethics and disseminationThe protocol was written according to the general ethical guidelines of the Declaration of Helsinki and approved by the Institutional Review Board/Ethics Committee of Beijing Tiantan Hospital, Capital Medical University with approval number KY 2018-003-02. Ethics committees of all participating sites have approved the study . Results of the study will be published in peer-reviewed scientific journals and shared in scientific presentations.Trial registration numberNCT03539445.


BMJ Open ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. e044917
Author(s):  
Tao Xu ◽  
You Wang ◽  
Jinxian Yuan ◽  
Yangmei Chen ◽  
Haiyan Luo

ObjectiveContrast extravasation (CE) after endovascular therapy (EVT) is commonly present in acute ischaemic stroke (AIS) patients. Substantial uncertainties remain about the relationship between CE and the outcomes of EVT in patients with AIS. Therefore, we aimed to evaluate this association.DesignA systematic review and meta-analysis of published studies were performed.Data sourceWe systematically searched the Medline and Embase databases for relevant clinical studies. The last literature search in databases was performed in June 2020.Eligibility criteria for study selectionWe included studies exploring the associations between CE and the outcomes of EVT in patients with AIS undergoing EVT.Data extraction and synthesisTwo reviewers extracted relevant information and data from each article independently. We pooled ORs with CIs using a random-effects meta-analysis to calculate the associations between CE and outcomes of EVT. The magnitude of heterogeneity between estimates was quantified with the I2 statistic with 95% CIs.ResultsFifteen observational studies that enrolled 1897 patients were included. Patients with CE had higher risks of poor functional outcome at discharge (2.38, 95% CI 1.45 to 3.89 p=0.001; n=545) and poor functional outcome at 90 days (OR 2.16, 95% CI 1.20 to 3.90; n=1194). We found no association between CE and in-hospital mortality (OR 0.95, 95% CI 0.27 to 3.30; n=376) or 90-day mortality (OR 1.38, 95% CI 0.81 to 2.36; n=697) after EVT. Moreover, CE was associated with higher risks of post-EVT intracranial haemorrhage (ICH) (OR 6.68, 95% CI 3.51 to 12.70; n=1721) and symptomatic ICH (OR 3.26, 95% CI 1.97 to 5.40; n=1092).ConclusionsThis systematic review and meta-analysis indicates that in patients with AIS undergoing EVT, CE is associated with higher risks of unfavourable functional outcomes and ICH. Thus, we should pay more attention to CE in patients with AIS undergoing EVT.


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