scholarly journals Thrombolysis Outcomes in Patients with Diabetes and Previous Stroke: A Meta-Analysis

2020 ◽  
Vol 47 (4) ◽  
pp. 486-493
Author(s):  
Azalea T. Pajo ◽  
Jose Danilo B. Diestro ◽  
Adrian I. Espiritu ◽  
Adam A. Dmytriw ◽  
Alejandro Enriquez-Marulanda ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Meta Analysis ◽  
Functional Independence ◽  
Tissue Type ◽  
Diabetic Patients ◽  
Eligibility Criteria ◽  
Symptomatic Intracerebral Hemorrhage ◽  
Patients With Diabetes ◽  
Newcastle Ottawa Scale

ABSTRACT:Background:Intravenous tissue-type plasminogen activator (IVtPA) is a proven treatment for acute ischemic stroke; however, diabetes mellitus (DM) and previous cerebral infarction (PCI) were considered relative contraindications for thrombolysis within the 3–4.5 h period.Objective:The study aimed to determine the safety and efficacy of IVtPA among diabetic patients with PCI presenting with acute ischemic stroke.Methods:Studies which evaluated the outcome of IVtPA in terms of symptomatic intracerebral hemorrhage (sICH), functional outcome in modified Rankin scale, and death among diabetic patients with PCI presenting with acute ischemic stroke within the 3–4.5 h period were systematically searched until July 2019. Screening and eligibility criteria were applied. Risk of bias was evaluated using the Newcastle–Ottawa Scale. Odds ratios (ORs) with 95% confidence interval (CI) were used to compare measures of treatment effect. Mantel–Haenszel method and random-effects model were also employed.Results:Four registry-based studies with a total of 44,572 patients were included for quantitative synthesis. Giving IVtPA among DM+/PCI+ patients did not result in significantly increased rate of sICH (OR, 1.09; 95% CI, 0.88, 1.36) compared to No DM+/PCI+ patients. However, there was significantly higher mortality (OR, 1.81; 95% CI, 1.60, 2.06) in the DM+/PCI+ group. Conversely, among those who survived, the DM+/PCI+ patients were more functionally independent at 3 months (OR, 0.76; 95% CI, 0.61, 0.94).Conclusion:Limited evidence suggests that thrombolysis in DM+/PCI+ patients does not result in significantly higher incidence of sICH and may improve functional independence. However, the significantly higher mortality in this group warrants an assessment of the individualized risk–benefit ratio in the use of IVtPA.

EXPRESS: Impact of renal impairment on short-term outcomes following endovascular thrombectomy for acute ischemic stroke: A systematic review and meta-analysis

2021 ◽  
pp. 174749302110473
Author(s):  
Jin Pyeong Jeon ◽  
Chih-Hao Chen ◽  
Fon-Yih Tsuang ◽  
Jianming Liu ◽  
Michael D Hill ◽  
...  
Keyword(s):  
Systematic Review ◽  
Ischemic Stroke ◽  
Renal Impairment ◽  
Acute Ischemic Stroke ◽  
Meta Analysis ◽  
Functional Independence ◽  
Continuous Variable ◽  
Endovascular Thrombectomy ◽  
Symptomatic Intracerebral Hemorrhage ◽  
The Impact

Background. The impact of renal impairment (RI) on the outcomes of patients with acute ischemic stroke (AIS) treated with endovascular thrombectomy (EVT) was relatively limited and contradictory. We performed a systematic review and meta-analysis to investigate this. Aims. We registered a protocol on September 2020 and searched MEDLINE, EMBASE, and Google Scholar accordingly. RI was defined as an estimated glomerular filtration rate (eGFR) < 60 mL/min/1.73 m2. Predefined outcomes included functional independence (defined as a modified Rankin Scale of 0, 1, or 2) at 3 months, successful reperfusion, mortality, and symptomatic intracerebral hemorrhage (sICH). Summary of review. Eleven studies involving 3453 patients were included. For the unadjusted outcomes, RI was associated with fewer functional independence (odds ratio (OR), 0.49; 95% confidence interval (CI), 0.39–0.62) and higher mortality (OR, 2.55; 95% CI, 2.03–3.21). RI was not associated with successful reperfusion (OR, 0.80; 95% CI 0.63–1.00) and sICH (OR, 1.41; 95% CI, 0.95–2.10). For the adjusted outcomes, results derived from a multivariate meta-analysis were consistent with the respective unadjusted outcomes: functional independence (OR, 0.59; 95% CI, 0.45–0.77), mortality (OR, 2.23, 95% CI, 1.45–3.43), and sICH (OR, 1.34; 95% CI, 0.85–2.10). Conclusions. We presented the first systematic review to demonstrate that RI is associated with fewer functional independence and higher mortality. Future EVT studies should publish complete renal eGFR data to facilitate prognostic studies and permit eGFR to be analyzed in a continuous variable. Systematic Review Registration: PROSPERO CRD42020191309

scholarly journals Mechanical Thrombectomy in Acute Ischemic Stroke: A Systematic Review

2016 ◽  
Vol 43 (4) ◽  
pp. 455-460 ◽  
Author(s):  
Anna Lambrinos ◽  
Alexis K. Schaink ◽  
Irfan Dhalla ◽  
Timo Krings ◽  
Leanne K. Casaubon ◽  
...  
Keyword(s):  
Systematic Review ◽  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Mechanical Thrombectomy ◽  
Meta Analysis ◽  
Intravenous Thrombolysis ◽  
Clinical Effectiveness ◽  
Functional Independence ◽  
Symptomatic Intracerebral Hemorrhage ◽  
Best Medical Therapy

AbstractAlthough intravenous thrombolysis increases the probability of a good functional outcome in carefully selected patients with acute ischemic stroke, a substantial proportion of patients who receive thrombolysis do not have a good outcome. Several recent trials of mechanical thrombectomy appear to indicate that this treatment may be superior to thrombolysis. We therefore conducted a systematic review and meta-analysis to evaluate the clinical effectiveness and safety of new-generation mechanical thrombectomy devices with intravenous thrombolysis (if eligible) compared with intravenous thrombolysis (if eligible) in patients with acute ischemic stroke caused by a proximal intracranial occlusion. We systematically searched seven databases for randomized controlled trials published between January 2005 and March 2015 comparing stent retrievers or thromboaspiration devices with best medical therapy (with or without intravenous thrombolysis) in adults with acute ischemic stroke. We assessed risk of bias and overall quality of the included trials. We combined the data using a fixed or random effects meta-analysis, where appropriate. We identified 1579 studies; of these, we evaluated 122 full-text papers and included five randomized control trials (n=1287). Compared with patients treated medically, patients who received mechanical thrombectomy were more likely to be functionally independent as measured by a modified Rankin score of 0-2 (odds ratio, 2.39; 95% confidence interval, 1.88-3.04; I2=0%). This finding was robust to subgroup analysis. Mortality and symptomatic intracerebral hemorrhage were not significantly different between the two groups. Mechanical thrombectomy significantly improves functional independence in appropriately selected patients with acute ischemic stroke.

Predictors of futile recanalization after endovascular treatment in acute ischemic stroke: a meta-analysis

2021 ◽  
pp. neurintsurg-2021-017963
Author(s):  
Gang Deng ◽  
Jun Xiao ◽  
Haihan Yu ◽  
Man Chen ◽  
Ke Shang ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Ischemic Stroke ◽  
Systolic Blood Pressure ◽  
Endovascular Treatment ◽  
Acute Ischemic Stroke ◽  
Meta Analysis ◽  
Intravenous Thrombolysis ◽  
Serum Glucose ◽  
Female Sex ◽  
Symptomatic Intracerebral Hemorrhage

BackgroundDespite successful recanalization after endovascular treatment, many patients with acute ischemic stroke due to large vessel occlusion still show functional dependence, namely futile recanalization.MethodsPubMed and Embase were searched up to April 30, 2021. Studies that reported risk factors for futile recanalization following endovascular treatment of acute ischemic stroke were included. The mean difference (MD) or odds ratio (OR) and 95% confidence interval (95% CI) of each study were pooled for a meta-analysis.ResultsTwelve studies enrolling 2138 patients were included. The pooled analysis showed that age (MD 5.81, 95% CI 4.16 to 7.46), female sex (OR 1.40, 95% CI 1.16 to 1.68), National Institutes of Health Stroke Scale (NIHSS) score (MD 4.22, 95% CI 3.38 to 5.07), Alberta Stroke Program Early CT Score (ASPECTS) (MD −0.71, 95% CI −1.23 to –0.19), hypertension (OR 1.73, 95% CI 1.43 to 2.09), diabetes (OR 1.78, 95% CI 1.41 to 2.24), atrial fibrillation (OR 1.24, 95% CI 1.01 to 1.51), admission systolic blood pressure (MD 4.98, 95% CI 1.87 to 8.09), serum glucose (MD 0.59, 95% CI 0.37 to 0.81), internal carotid artery occlusion (OR 1.85, 95% CI 1.17 to 2.95), pre-treatment intravenous thrombolysis (OR 0.67, 95% CI 0.55 to 0.83), onset-to-puncture time (MD 16.92, 95% CI 6.52 to 27.31), puncture-to-recanalization time (MD 12.37, 95% CI 7.96 to 16.79), and post-treatment symptomatic intracerebral hemorrhage (OR 6.09, 95% CI 3.18 to 11.68) were significantly associated with futile recanalization.ConclusionThis study identified female sex, comorbidities, admission systolic blood pressure, serum glucose, occlusion site, non-bridging therapy, and post-procedural complication as predictors of futile recanalization, and also confirmed previously reported factors. Further large-scale prospective studies are needed.

scholarly journals Stress hyperglycemia is associated with in-hospital mortality in patients with diabetes and acute ischemic stroke

2020 ◽  
Author(s):  
Donghua Mi ◽  
Zixiao Li ◽  
Hongqiu Gu ◽  
Yin Yang ◽  
Chunjuan Wang ◽  
...  
Keyword(s):  
Risk Factors ◽  
Ischemic Stroke ◽  
Cardiovascular Risk ◽  
Acute Ischemic Stroke ◽  
Cardiovascular Risk Factors ◽  
Fasting Blood Glucose ◽  
Hospital Death ◽  
Diabetic Patients ◽  
Stress Hyperglycemia ◽  
Patients With Diabetes

Abstract Background and Objective: Stress hyperglycemia may occur in diabetic patients with acute severe cerebrovascular disease, but the results regarding its association with stroke outcomes are conflicting.Our study aimed to examine the association between stress-induced hyperglycemia and the occurrence of in-hospital death in patients with diabetes and acute ischemic stroke. Research Design and Methods: All data were from the Chinese Stroke Center Alliance (CSCA) database and were collected between 2016 and 2018 from > 300 centers across China. Patients’ demographics, clinical presentation, and laboratory data were extracted from the database. The primary endpoint was in-hospital death. The ratio of fasting blood glucose (FBG) to HbA1c was calculated, i.e., the stress-induced hyperglycemia ratio (SHR), to determine stress hyperglycemia following acute ischemic stroke. Results A total of 168,381 patients were included. The mean age was 66.2 ± 10.7, and 77,688 (43.0%) patients were female. The patients were divided into two groups: survivors (n = 167,499) and non-survivors (n = 882), as well as into four groups according to their SHR quartiles (n = 42,090 − 42,099/quartile). The frequencies of traditional cardiovascular risk factors increased with the SHR quartiles. There were 109 (0.26%), 142 (0.34%), 196 (0.47%), and 435 (1.03%) patients who died in the Q1, Q2, Q3, and Q4 quartiles, respectively. Compared with Q1 patients, the death risk was higher in Q4 patients (odds ratio (OR) = 4.02) (adjusted OR = 1.89, 95% confidence interval [CI] = 1.14–3.12, P = 0.026 after adjustment for traditional cardiovascular risk factors). Conclusions The SHR may serve as an accessory parameter for the prognosis of patients with diabetes after acute ischemic stroke.Hyperglycemia in stroke patients with diabetes mellitus is associated with a higher risk of in-hospital death.

scholarly journals Intravenous fibrinolysis plus endovascular thrombectomy versus direct endovascular thrombectomy for anterior circulation acute ischemic stroke: clinical and infarct volume results.

2019 ◽  
Author(s):  
Massimo Gamba ◽  
Nicola Gilberti ◽  
Enrico Premi ◽  
Angelo Costa ◽  
Michele Frigerio ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Safety Profile ◽  
Infarct Volume ◽  
Intravenous Thrombolysis ◽  
Functional Independence ◽  
Anterior Circulation ◽  
Endovascular Thrombectomy ◽  
Symptomatic Intracerebral Hemorrhage

Abstract Background and Purpose endovascular therapy (ET) is the standard of care for anterior circulation acute ischemic stroke (AIS) caused by large vessel occlusion (LVO). The role of adjunctive intravenous thrombolysis (IVT) in these patients is still unclear. The present study aims to test whether IVT plus ET (CoT, combined therapy) provides additional benefits over direct ET for anterior circulation AIS by LVO. Methods we performed a single center retrospective observational study of patients with AIS caused by anterior circulation LVO, referred to our center between January 2014 and January 2017 and treated with ET. The patients were divided in 2 groups based on the treatment they received: CoT and, if IVT contraindicated, direct ET. We compared functional recovery (modified Rankin at 3-months follow-up), recanalization rate (thrombolysis in cerebral infarction [TICI] score) and time, early follow-up infarct volume (EFIV) (for recanalized patients only) as well as safety profile, defined as symptomatic intracerebral hemorrhage (sICH) and 3-month mortality, between groups. Results 145 subjects were included in the study, 70 in direct ET group and 75 in CoT group. Patients who received CoT presented more frequently a functional independence at 3-months follow-up compared to patients who received direct ET (mRS score 0-1: 48.5% vs 18.6%; P<0.001. mRS score 0-2: 67.1% vs 37.3%; P<0.001), higher first-pass success rate (62.7% vs 38.6%, P<0.05), higher recanalization rate (84.3% vs 65.3%; P=0.009) and, in recanalized subjects, smaller EFIV (16.4ml vs 62.3ml; P=0.003). The safety profile was similar for the 2 groups. In multivariable regression analysis, low baseline NIHSS score (P<0.05), vessel recanalization (P=0.05) and CoT (P=0.03) were indipendent predictors of 3-month favorable outcome. Conclusions CoT appears more effective than ET alone for anterior circulation AIS with LVO, with similar safety profile.

scholarly journals Endovascular thrombectomy without versus with intravenous thrombolysis in acute ischemic stroke: a non-inferiority meta-analysis of randomized clinical trials

2021 ◽  
pp. neurintsurg-2021-017667
Author(s):  
Chun-Hsien Lin ◽  
Jeffrey L Saver ◽  
Bruce Ovbiagele ◽  
Wen-Yi Huang ◽  
Meng Lee
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Randomized Trials ◽  
Randomized Clinical Trials ◽  
Meta Analysis ◽  
Intravenous Thrombolysis ◽  
Functional Independence ◽  
Risk Difference ◽  
Endovascular Thrombectomy ◽  
Symptomatic Intracranial Hemorrhage

ObjectiveTo conduct a meta-analysis of randomized trials to comprehensively compare the effect of endovascular thrombectomy (EVT) versus intravenous thrombolysis (IVT) plus EVT on functional independence (modified Rankin Scale (mRS) 0–2) after acute ischemic stroke due to large vessel occlusions (AIS-LVO).MethodsWe searched Pubmed, EMBASE, CENTRAL, and clinicaltrials.gov from January 2000 to February 2021 and abstracts presented at the International Stroke Conference in March 2021 to identify trials comparing EVT alone versus IVT plus EVT in AIS-LVO. Five non-inferiority margins established in the literature were assessed: −15%, −10%, −6.5%, −5%, and −1.3% for the risk difference for functional independence at 90 days.ResultsFour trials met the selection criteria, enrolling 1633 individuals, with 817 participants randomly assigned to EVT alone and 816 to IVT plus EVT. Crude cumulative rates of 90-day functional independence were 46.0% with EVT alone versus 45.5% with IVT plus EVT. Pooled results showed the risk difference of functional independence was 1% (95% CI −4% to 5%) between EVT alone versus IVT plus EVT. The lower 95% CI bound of −4% fell within the non-inferiority margins of −15%, −10%, −6.5%, and −5%, but not −1.3%. Pooled results also showed the risk difference between EVT alone versus IVT plus EVT was 1% (95% CI −3% to 5%) for mRS 0–1, and 1% (95% CI −1% to 3%) for symptomatic intracranial hemorrhage.ConclusionsThis meta-analysis suggests that EVT alone is non-inferior to IVT plus EVT for several, but not the most stringent, non-inferiority margins.

Thrombolysis in elderly stroke patients in Italy (TESPI) trial and updated meta-analysis of randomized controlled trials

2019 ◽  
pp. 174749301988452
Author(s):  
Svetlana Lorenzano ◽  
Annarita Vestri ◽  
Ugo Lancia ◽  
Paolo Bovi ◽  
Manuel Cappellari ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Intracerebral Hemorrhage ◽  
Randomized Controlled Trials ◽  
Acute Ischemic Stroke ◽  
Meta Analysis ◽  
Outcome Evaluation ◽  
Absolute Difference ◽  
Controlled Trials ◽  
Randomized Controlled ◽  
Symptomatic Intracerebral Hemorrhage

Background Since its approval, the use of alteplase had been limited to patients aged ≤80 years. Aims TESPI trial had been designed to evaluate whether alteplase treatment within 3 h in patients with acute ischemic stroke aged >80 years resulted in favorable benefit/risk ratio compared with standard care. The meta-analysis of randomized controlled trials was updated to put findings in the context of all available evidence. Methods TESPI was a multicenter, open-label with blinded outcome evaluation, randomized, controlled trial. Main clinical endpoints were 90-day favorable functional outcome (mRS score 0–2) and mortality and symptomatic intracerebral hemorrhage. The trial was prematurely terminated for ethical reasons after publication of IST-3 trial which provided evidence of treatment benefit in elderly. Results Of the planned 600 patients, 191 (88 assigned to alteplase) were enrolled. Overall, 24/83 (28.9%) alteplase patients had a favorable outcome compared to 22/95 (23.2%) controls (non-significant absolute difference of 5.7% for alteplase; OR 1.35, 95% CI 0.69–2.64, P = 0.381). Rates of death were non-significantly lower in the alteplase patients (18.1% vs. 26.5%); rates of symptomatic intracerebral hemorrhage were similar between the two groups (5.9% vs. 5.1%). The updated meta-analysis showed consistent results with prior estimates and add weights. Conclusions The effects of alteplase observed in this interrupted trial did not reach statistical significance, probably for the small numbers, but are consistent with and add weight to the sum total of the randomized evidence demonstrating that alteplase is beneficial in patients with acute ischemic stroke aged over 80 years, particularly if given within 3 h.

Preceding Intravenous Thrombolysis in Patients Receiving Endovascular Therapy

2017 ◽  
Vol 44 (1-2) ◽  
pp. 51-58 ◽  
Author(s):  
Hong-Kyun Park ◽  
Jong-Won Chung ◽  
Jeong-Ho Hong ◽  
Min Uk Jang ◽  
Hyun-Du Noh ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Endovascular Therapy ◽  
Intravenous Thrombolysis ◽  
Functional Independence ◽  
Hemorrhagic Transformation ◽  
Eligibility Criteria ◽  
Stroke Registry ◽  
Beneficial Effects ◽  
New Generation

Background: The beneficial effects of endovascular therapy (EVT) in acute ischemic stroke have been demonstrated in recent clinical trials using new-generation thrombectomy devices. However, the comparative effectiveness and safety of preceding intravenous thrombolysis (IVT) in this population has rarely been evaluated. Methods: From a prospective multicenter stroke registry database in Korea, we identified patients with acute ischemic stroke who were treated with EVT within 8 h of onset and admitted to 14 participating centers during 2008-2013. The primary outcome was a modified Rankin Scale (mRS) score at 3 months. Major secondary outcomes were successful recanalization defined as a modified Treatment in Cerebral Ischemia score of 2b-3, functional independence (mRS score 0-2), mortality at 3 months, and symptomatic hemorrhagic transformation (SHT) during hospitalization. Multivariable logistic regression analyses using generalized linear mixed models were performed to estimate the adjusted odds ratios (ORs) of preceding IVT. Results: Of the 639 patients (male, 61%; age 69 ± 12; National Institutes of Health Stroke Scale score of 15 [11-19]) who met the eligibility criteria, 458 received preceding IVT. These patients showed lower mRS scores (adjusted common OR, 1.38 [95% CI 0.98-1.96]). Preceding IVT was associated with successful recanalization (1.96 [1.23-3.11]) and reduced 3-month mortality (0.58 [0.35-0.97]) but not with SHT (0.96 [0.48-1.93]). Conclusion: In patients treated with EVT within 8 of acute ischemic stroke onset, preceding IVT may enhance survival and successful recanalization without additional risk of SHT, and mitigate disability at 3 months.

Mechanical thrombectomy for acute ischemic stroke with occlusion of the M2 segment of the middle cerebral artery: a meta-analysis

2017 ◽  
Vol 10 (7) ◽  
pp. 620-624 ◽  
Author(s):  
Hamidreza Saber ◽  
Sandra Narayanan ◽  
Mohan Palla ◽  
Jeffrey L Saver ◽  
Raul G Nogueira ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Middle Cerebral Artery ◽  
Acute Ischemic Stroke ◽  
Cerebral Artery ◽  
Mechanical Thrombectomy ◽  
Meta Analysis ◽  
Functional Independence ◽  
Vessel Occlusion ◽  
Increased Risk ◽  
Significant Difference

BackgroundEndovascular thrombectomy has demonstrated benefit for patients with acute ischemic stroke from proximal large vessel occlusion. However, limited evidence is available from recent randomized trials on the role of thrombectomy for M2 segment occlusions of the middle cerebral artery (MCA).MethodsWe conducted a systematic review and meta-analysis to investigate clinical and radiographic outcomes, rates of hemorrhagic complications, and mortality after M2 occlusion thrombectomy using modern devices, and compared these outcomes against patients with M1 occlusions. Recanalization was defined as Thrombolysis in Cerebral Infarction (TICI) 2b/3 or modified TICI 2b/3.ResultsA total of 12 studies with 1080 patients with M2 thrombectomy were included in our analysis. Functional independence (modified Rankin Scale 0–2) rate was 59% (95% CI 54% to 64%). Mortality and symptomatic intracranial hemorrhage rates were 16% (95% CI 11% to 23%) and 10% (95% CI 6% to 16%), respectively. Recanalization rates were 81% (95% CI 79% to 84%), and were equally comparable for stent-retriever versus aspiration (OR 1.05; 95% CI 0.91 to 1.21). Successful M2 recanalization was associated with greater rates of favorable outcome (OR 4.22; 95% CI 1.96 to 9.1) compared with poor M2 recanalization (TICI 0–2a). There was no significant difference in recanalization rates for M2 versus M1 thrombectomy (OR 1.05; 95% CI 0.77 to 1.42).ConclusionsThis meta-analysis suggests that mechanical thrombectomy for M2 occlusions that can be safely accessed is associated with high functional independence and recanalization rates, but may be associated with an increased risk of hemorrhage.

Plasma C-Reactive Protein Level and Outcome of Acute Ischemic Stroke Patients Treated by Intravenous Thrombolysis: A Systematic Review and Meta-Analysis

2021 ◽  
pp. 1-6
Author(s):  
Jin Jiang ◽  
Changhong Tan ◽  
Wen Zhou ◽  
Wuxue Peng ◽  
Xuan Zhou ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Meta Analysis ◽  
Alternative Therapy ◽  
Intravenous Thrombolysis ◽  
High Plasma ◽  
C Reactive Protein ◽  
Reactive Protein ◽  
Symptomatic Intracerebral Hemorrhage ◽  
The Relationship

<b><i>Introduction:</i></b> The plasma C-reactive protein (CRP) level in predicting prognosis of acute ischemic stroke (AIS) patients receiving intravenous thrombolysis (IVT) is not yet established. This study is aiming to investigate the relationship between the plasma CRP level and outcome of AIS patients receiving IVT. <b><i>Methods:</i></b> PubMed and EMBASE were searched for relevant studies that evaluated the relationship between the CRP level and outcome of AIS patients receiving IVT. STATA 12.0 was used to pool the data for meta-analysis. <b><i>Results:</i></b> In total, 8 studies were included. Six studies reported a positive relationship between the high CRP level and unfavorable outcome at 3 months. Five studies associated the high plasma CRP level with high mortality at 3 months. And meta-analysis further confirmed that the high CRP level was related to unfavorable outcomes (odds ratio [OR] = 1.716, 95% CI: 1.170–2.517, <i>p</i> = 0.006) and mortality (OR = 2.751, 95% CI: 1.613–4.693, <i>p</i> &#x3c; 0.001) at 3 months. However, an elevated CRP level was not found to increase the risk of symptomatic intracerebral hemorrhage. <b><i>Conclusion:</i></b> A high plasma CRP level was associated with a 3-month poor outcome of AIS patients treated with IVT. CRP may be used as a biomarker for the risk stratification of AIS patients as candidates receiving IVT or other alternative therapy such as mechanical thrombectomy.

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