scholarly journals Effect of Recanalization on Cerebral Edema in Ischemic Stroke Treated With Thrombolysis and/or Endovascular Therapy

Stroke ◽  
2020 ◽  
Vol 51 (1) ◽  
pp. 216-223 ◽  
Author(s):  
Magnus Thorén ◽  
Anand Dixit ◽  
Irene Escudero-Martínez ◽  
Zuzana Gdovinová ◽  
Lukas Klecka ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Cerebral Edema ◽  
Odds Ratio ◽  
Lower Risk ◽  
Adjusted Odds Ratio ◽  
Intravenous Thrombolysis ◽  
Artery Occlusion ◽  
Secondary Outcome ◽  
Stroke Treatment ◽  
Blood Brain Barrier Disruption

Background and Purpose— A large infarct and expanding cerebral edema (CED) due to a middle cerebral artery occlusion confers a 70% mortality unless treated surgically. Reperfusion may cause blood-brain barrier disruption and a risk for cerebral edema and secondary parenchymal hemorrhage (PH). We aimed to investigate the effect of recanalization on development of early CED and PH after recanalization therapy. Methods— From the SITS-International Stroke Treatment Registry, we selected patients with signs of artery occlusion at baseline (either Hyperdense Artery Sign or computed tomography/magnetic resonance imaging angiographic occlusion). We defined recanalization as the disappearance of radiological signs of occlusion at 22 to 36 hours. Primary outcome was moderate to severe CED and secondary outcome was PH on 22- to 36-hour imaging scans. We used logistic regression with adjustment for baseline variables and PH. Results— Twenty two thousand one hundred eighty-four patients fulfilled the inclusion criteria (n=18 318 received intravenous thrombolysis, n=3071 received intravenous thrombolysis+thrombectomy, n=795 received thrombectomy). Recanalization occurred in 64.1%. Median age was 71 versus 71 years and National Institutes of Health Stroke Scale score 15 versus 16 in the recanalized versus nonrecanalized patients respectively. Recanalized patients had a lower risk for CED (13.0% versus 23.6%), adjusted odds ratio (aOR), 0.52 (95% CI, 0.46–0.59), and a higher risk for PH (8.9% versus 6.5%), adjusted odds ratio, 1.37 (95% CI, 1.22–1.55), than nonrecanalized patients. Conclusions— In patients with acute ischemic stroke, recanalization was associated with a lower risk for early CED even after adjustment for higher rate for PH in recanalized patients.

scholarly journals Neutrophil-to-Lymphocyte Ratio Predicts Cerebral Edema and Clinical Worsening Early After Reperfusion Therapy in Stroke

Stroke ◽  
2021 ◽  
Author(s):  
Daniela Ferro ◽  
Margarida Matias ◽  
Joana Neto ◽  
Rafael Dias ◽  
Goreti Moreira ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Systemic Inflammatory Response Syndrome ◽  
Inflammatory Response ◽  
Systemic Inflammation ◽  
Cerebral Edema ◽  
Odds Ratio ◽  
Adjusted Odds Ratio ◽  
Reperfusion Therapy ◽  
Systemic Inflammatory Response ◽  
Early Neurological Deterioration

Background and Purpose: The mechanisms linking systemic inflammation to poor outcome in ischemic stroke are not fully understood. The authors investigated if peripheral inflammation following reperfusion therapy leads to an increase in cerebral edema (CED), thus hindering the clinical recovery. Methods: We designed a single-center study conducted at Centro Hospitalar Universitário São João between 2017 and 2019. Inclusion criteria were being adult, having an anterior circulation acute ischemic stroke, and receiving reperfusion therapy. Neutrophil-to-lymphocyte, platelet-to-lymphocyte ratios, and the systemic inflammatory response syndrome criteria were determined. The presence and grade of CED were evaluated on the computed tomography performed 24 hours following event. The clinical outcomes included early neurological deterioration and functional dependence at 90 days. Adjusted odds ratio and 95% CI were obtained by ordinal and logistic regression models. Optimal cutoff values were defined using receiver operating characteristic analysis in the training cohort and validated in an independent data set. Results: Five hundred fifty-three patients were included. Neutrophil-to-lymphocyte increased with higher degrees of CED at 24 hours (adjusted odds ratio, 1.34 [1.09–1.68], P <0.01) and was associated with early neurological deterioration (adjusted odds ratio, 1.30 [1.04–1.63], P <0.05) and poor functional status at 90 days (adjusted odds ratio, 1.79 [1.28–2.48], P <0.01). Platelet-to-lymphocyte was not associated with the outcomes. Systemic inflammatory response syndrome was related to CED due to altered white blood cell counts. Neutrophil-to-lymphocyte was the best predictor with an area under the curve around 0.7. Neutrophil-to-lymphocyte ≥7 had and accuracy, sensitivity, and specificity around 60%. Conclusions: Increased systemic inflammation is linked to the severity of CED early after reperfusion therapy in stroke. Easily obtained inflammatory markers convey early warning alerts for patients at risk of severe neurological complications with an impact on long-term functional outcome. CED quantification should be included as an end point in proof-of-concept trials in immunomodulation in stroke.

scholarly journals Minor stroke due to large artery occlusion. When is intravenous thrombolysis not enough? Results from the SITS International Stroke Thrombolysis Register

2017 ◽  
Vol 3 (1) ◽  
pp. 29-38 ◽  
Author(s):  
Michael V Mazya ◽  
Charith Cooray ◽  
Kennedy R Lees ◽  
Danilo Toni ◽  
Gary A Ford ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Odds Ratio ◽  
Adjusted Odds Ratio ◽  
Internal Carotid ◽  
Intravenous Thrombolysis ◽  
Artery Occlusion ◽  
Neurological Deterioration ◽  
Minor Stroke ◽  
Early Neurological Deterioration

Purpose Beyond intravenous thrombolysis, evidence is lacking on acute treatment of minor stroke caused by large artery occlusion. To identify candidates for additional endovascular therapy, we aimed to determine the frequency of non-haemorrhagic early neurological deterioration in patients with intravenous thrombolysis-treated minor stroke caused by occlusion of large proximal and distal cerebral arteries. Secondary aims were to establish risk factors for non-haemorrhagic early neurological deterioration and report three-month outcomes in patients with and without non-haemorrhagic early neurological deterioration. Method We analysed data from the SITS International Stroke Thrombolysis Register on 2553 patients with intravenous thrombolysis-treated minor stroke (NIH Stroke Scale scores 0–5) and available arterial occlusion data. Non-haemorrhagic early neurological deterioration was defined as an increase in NIH Stroke Scale score ≥4 at 24 h, without parenchymal hematoma on follow-up imaging within 22–36 h. Findings The highest frequency of non-haemorrhagic early neurological deterioration was seen in 30% of patients with terminal internal carotid artery or tandem occlusions (internal carotid artery + middle cerebral artery) (adjusted odds ratio: 10.3 (95% CI 4.3–24.9), p < 0.001) and 17% in extracranial carotid occlusions (adjusted odds ratio 4.3 (2.5–7.7), p < 0.001) versus 3.1% in those with no occlusion. Proximal middle cerebral artery-M1 occlusions had non-haemorrhagic early neurological deterioration in 9% (adjusted odds ratio 2.1 (0.97–4.4), p = 0.06). Among patients with any occlusion and non-haemorrhagic early neurological deterioration, 77% were dead or dependent at three months. Conclusions Patients with minor stroke caused by internal carotid artery occlusion, with or without tandem middle cerebral artery involvement, are at high risk of disabling deterioration, despite intravenous thrombolysis treatment. Acute vessel imaging contributes usefully even in minor stroke to identify and consider endovascular treatment, or intensive monitoring at a comprehensive stroke centre, for patients at high risk of neurological deterioration.

Safety and early outcomes after intravenous thrombolysis in acute ischemic stroke patients with prestroke disability

2020 ◽  
pp. 174749302095460
Author(s):  
Charith Cooray ◽  
Michal Karlinski ◽  
Adam Kobayashi ◽  
Peter Ringleb ◽  
Janika Kõrv ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Intracerebral Hemorrhage ◽  
Acute Ischemic Stroke ◽  
Outcome Measures ◽  
Odds Ratio ◽  
Adjusted Odds Ratio ◽  
Intravenous Thrombolysis ◽  
Absolute Difference ◽  
Stroke Patients ◽  
Symptomatic Intracerebral Hemorrhage

Background There are limited data on intravenous thrombolysis treatment in ischemic stroke patients with prestroke disability. Aim We aimed to evaluate safety and outcomes of intravenous thrombolysis treatment in stroke patients with prestroke disability. Methods We analyzed 88,094 patients treated with intravenous thrombolysis, recorded in the Safe Implementation of Treatments in Stroke (SITS) International Thrombolysis Register between January 2003 and December 2017, with available NIHSS data at stroke-onset and after 24 h. Of them, 4566 patients (5.2%) had prestroke disability, defined as a modified Rankin Scale score of 3–5. Safety outcome measures included Symptomatic Intracerebral Hemorrhage, any type of parenchymal hematoma on 24 h imaging scans irrespective of clinical symptoms, and death within seven days. Early outcome measures were 24-h NIHSS improvement (≥4 from baseline to 24 h). Results Patients with prestroke disability were older, had more severe strokes, and more comorbidities than patients without prestroke disability. When comparing patients with prestroke disability with patients without prestroke disability, there was however no significant increase in adjusted odds for symptomatic intracerebral hemorrhage (adjusted odds ratio 0.83 (95% CI 0.60–1.15) (absolute difference in proportion 1.17% vs. 1.27%)) or for parenchymal hemorrhage (adjusted odds ratio 0.96 (0.83–1.11) (7.51% vs. 6.34%)). The prestroke disability group had a significantly lower-adjusted odds ratio for a 24-h NIHSS improvement (adjusted odds ratio 0.79 (0.73–0.85) (45.95% vs. 48.45%)) and a higher adjusted odds ratio for seven-day mortality (aOR 1.40 (1.21–1.61) (10.40% vs. 4.93%)). Conclusions Intravenous thrombolysis in acute ischemic stroke patients with prestroke disability was not associated with an increased risk of symptomatic intracerebral hemorrhage or parenchymal hemorrhage. Prestroke disability was however associated with a higher risk of early mortality compared to patients without prestroke disability.

scholarly journals Contemporary Trends in the Treatment of Mild Ischemic Stroke with Intravenous Thrombolysis: Paul Coverdell National Acute Stroke Program

2021 ◽  
pp. 1-7
Author(s):  
Ganesh Asaithambi ◽  
Xin Tong ◽  
Sallyann M. Coleman King ◽  
Mary G. George
Keyword(s):  
Ischemic Stroke ◽  
Odds Ratio ◽  
Adjusted Odds Ratio ◽  
Intravenous Thrombolysis ◽  
Estimating Equation ◽  
National Institutes Of Health ◽  
Generalized Estimating Equation ◽  
Mild Stroke ◽  
The Impact ◽  
Program Data

<b><i>Background:</i></b> Presentation with mild symptoms is a common reason for intravenous thrombolysis (IVT) nonuse among acute ischemic stroke (AIS) patients. We examined the impact of IVT on the outcomes of mild AIS over time. <b><i>Methods:</i></b> Using the Paul Coverdell National Stroke Program data, we examined trends in IVT utilization from 2010 to 2019 among AIS patients presenting with National Institutes of Health Stroke Scale (NIHSS) scores ≤5. Outcomes adjudicated included rates of discharge to home and ability to ambulate independently at discharge. We used generalized estimating equation models to examine the effect of IVT on outcomes of AIS patients presenting with mild symptoms and calculated adjusted odds ratio (AOR) with 95% confidence intervals (CI). <b><i>Results:</i></b> During the study period, 346,762 patients presented with mild AIS symptoms. Approximately 6.2% were treated with IVT. IVT utilization trends increased from 3.7% in 2010 to 7.7% in 2019 (<i>p</i> &#x3c; 0.001). Patients treated with IVT had higher median NIHSS scores upon presentation (IVT 3 [2, 4] vs. no IVT 2 [0, 3]). Rates of discharge to home (AOR 2.06, 95% CI: 1.99–2.13) and ability to ambulate at time of discharge (AOR 1.82, 95% CI: 1.76–1.89) were higher among those treated with IVT. <b><i>Conclusion:</i></b> There was an increased trend in IVT utilization among AIS patients presenting with mild symptoms. Utilization of IVT increased the odds of being discharged to home and the ability to ambulate at discharge independently in patients with mild stroke.

Plasma Homocysteine and Prognosis of Patients with Recanalization after Acute Basilar Artery Occlusion: An Analysis from the Acute Basilar Artery Occlusion Study (BASILAR) Nationwide Prospective Registry

2021 ◽  
Vol 18 ◽  
Author(s):  
Xiangrong Sun ◽  
Qian Yang ◽  
Xinyue Ju ◽  
Shenglin Wang ◽  
Zhongming Qiu ◽  
...  
Keyword(s):  
Basilar Artery ◽  
Predictive Value ◽  
Odds Ratio ◽  
Functional Outcomes ◽  
Adjusted Odds Ratio ◽  
Artery Occlusion ◽  
Plasma Homocysteine ◽  
Basilar Artery Occlusion ◽  
Secondary Outcome ◽  
Elevated Plasma

Background: Few studies have investigated the association between plasma homocysteine (Hcy) levels in patients with recanalization after acute basilar artery occlusion (BAO). Objective: This study investigated the predictive value of Hcy on the clinical prognosis of patients with recanalization after acute BAO. Methods: Altogether, 829 participants were recruited from the standard medical treatment plus endovascular treatment group of the Acute Basilar Artery Occlusion Study (BASILAR). Hcy levels were measured the morning after admission. The primary outcome was a combination of death and major disability (modified Rankin Scale score 4-6) at 90 days, and the secondary outcome was the mortality of patients with recanalization after acute BAO within 90 days. We used multivariable logistic regression modeling to estimate the association between Hcy and prognosis in our participants at 90 days. Results: Altogether, 647 patients were assessed, and 302 patients were included in this study. The median was 12.88 μmol/L, and the mean Hcy concentration was 15.49 μmol/L. Elevated plasma Hcy levels (Hcy >12.88 μmol/L) were associated with poor functional outcomes (adjusted odds ratio 1.922, 95% confidence interval [CI] 1.048-3.528], P=0.035), but not with mortality (adjusted odds ratio 1.605, 95% CI 0.986-2.489, P=0.058). In further subgroup analysis, the conclusion was consistent in all predefined subgroups. Conclusion: Our analysis suggests that elevated plasma Hcy levels have predictive value for functional outcomes in patients with recanalization after acute BAO during the 90-day follow-up period, but not for mortality.

scholarly journals Receptor for Advanced Glycation End Products Is Involved in LPA5-Mediated Brain Damage after a Transient Ischemic Stroke

Life ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 80
Author(s):  
Arjun Sapkota ◽  
Sung Jean Park ◽  
Ji Woong Choi
Keyword(s):  
Ischemic Stroke ◽  
Advanced Glycation End Products ◽  
Brain Injuries ◽  
Artery Occlusion ◽  
Advanced Glycation ◽  
Ischemic Brain ◽  
Blood Brain Barrier Disruption ◽  
Glycation End Products ◽  
End Products ◽  
Ischemic Core

Lysophosphatidic acid receptor 5 (LPA5) has been recently identified as a novel pathogenic factor for brain ischemic stroke. However, its underlying mechanisms remain unclear. Here, we determined whether the receptor for advanced glycation end products (RAGE) could be involved in LPA5-mediated brain injuries after ischemic challenge using a mouse model of transient middle cerebral artery occlusion (tMCAO). RAGE was upregulated in the penumbra and ischemic core regions after tMCAO challenge. RAGE upregulation was greater at 3 days than that at 1 day after tMCAO challenge. It was mostly observed in Iba1-immunopositive cells of a post-ischemic brain. Suppressing LPA5 activity with its antagonist, TCLPA5, attenuated RAGE upregulation in the penumbra and ischemic core regions, particularly on Iba1-immunopositive cells, of injured brains after tMCAO challenge. It also attenuated blood–brain barrier disruption, one of the core pathogenesis upon RAGE activation, after tMCAO challenge. As an underlying signaling pathways, LPA5 could contribute to the activation of ERK1/2 and NF-κB in injured brains after tMCAO challenge. Collectively, the current study suggests that RAGE is a possible mediator for LPA5-dependent ischemic brain injury.

scholarly journals Cerebral endothelial cell-derived small extracellular vesicles enhance neurovascular function and neurological recovery in rat acute ischemic stroke models of mechanical thrombectomy and embolic stroke treatment with tPA

2021 ◽  
pp. 0271678X2199298
Author(s):  
Chao Li ◽  
Chunyang Wang ◽  
Yi Zhang ◽  
Owais K Alsrouji ◽  
Alex B Chebl ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Extracellular Vesicles ◽  
Mechanical Thrombectomy ◽  
Infarct Volume ◽  
Artery Occlusion ◽  
Therapeutic Effects ◽  
Vessel Occlusion ◽  
Healthy Human ◽  
Stroke Treatment

Treatment of patients with cerebral large vessel occlusion with thrombectomy and tissue plasminogen activator (tPA) leads to incomplete reperfusion. Using rat models of embolic and transient middle cerebral artery occlusion (eMCAO and tMCAO), we investigated the effect on stroke outcomes of small extracellular vesicles (sEVs) derived from rat cerebral endothelial cells (CEC-sEVs) in combination with tPA (CEC-sEVs/tPA) as a treatment of eMCAO and tMCAO in rat. The effect of sEVs derived from clots acquired from patients who had undergone mechanical thrombectomy on healthy human CEC permeability was also evaluated. CEC-sEVs/tPA administered 4 h after eMCAO reduced infarct volume by ∼36%, increased recanalization of the occluded MCA, enhanced cerebral blood flow (CBF), and reduced blood-brain barrier (BBB) leakage. Treatment with CEC-sEVs given upon reperfusion after 2 h tMCAO significantly reduced infarct volume by ∼43%, and neurological outcomes were improved in both CEC-sEVs treated models. CEC-sEVs/tPA reduced a network of microRNAs (miRs) and proteins that mediate thrombosis, coagulation, and inflammation. Patient-clot derived sEVs increased CEC permeability, which was reduced by CEC-sEVs. CEC-sEV mediated suppression of a network of pro-thrombotic, -coagulant, and -inflammatory miRs and proteins likely contribute to therapeutic effects. Thus, CEC-sEVs have a therapeutic effect on acute ischemic stroke by reducing neurovascular damage.

Achieving More Rapid Door-to-Needle Times and Improved Outcomes in Acute Ischemic Stroke in a Nationwide Quality Improvement Intervention

Stroke ◽  
2021 ◽  
Author(s):  
Ying Xian ◽  
Haolin Xu ◽  
Eric E. Smith ◽  
Jeffrey L. Saver ◽  
Mathew J. Reeves ◽  
...  
Keyword(s):  
United States ◽  
Quality Improvement ◽  
Ischemic Stroke ◽  
Thrombolytic Therapy ◽  
Phase I ◽  
Acute Ischemic Stroke ◽  
Symptom Onset ◽  
Odds Ratio ◽  
Adjusted Odds Ratio ◽  
The United States

Background and Purpose: The benefits of tPA (tissue-type plasminogen activator) in acute ischemic stroke are time-dependent. However, delivery of thrombolytic therapy rapidly after hospital arrival was initially occurring infrequently in hospitals in the United States, discrepant with national guidelines. Methods: We evaluated door-to-needle (DTN) times and clinical outcomes among patients with acute ischemic stroke receiving tPA before and after initiation of 2 successive nationwide quality improvement initiatives: Target: Stroke Phase I (2010–2013) and Target: Stroke Phase II (2014–2018) from 913 Get With The Guidelines-Stroke hospitals in the United States between April 2003 and September 2018. Results: Among 154 221 patients receiving tPA within 3 hours of stroke symptom onset (median age 72 years, 50.1% female), median DTN times decreased from 78 minutes (interquartile range, 60–98) preintervention, to 66 minutes (51–87) during Phase I, and 50 minutes (37–66) during Phase II ( P <0.001). Proportions of patients with DTN ≤60 minutes increased from 26.4% to 42.7% to 68.6% ( P <0.001). Proportions of patients with DTN ≤45 minutes increased from 10.1% to 17.7% to 41.4% ( P <0.001). By the end of the second intervention, 75.4% and 51.7% patients achieved 60-minute and 45-minute DTN goals. Compared with the preintervention period, hospitals during the second intervention period (2014–2018) achieved higher rates of tPA use (11.7% versus 5.6%; adjusted odds ratio, 2.43 [95% CI, 2.31–2.56]), lower in-hospital mortality (6.0% versus 10.0%; adjusted odds ratio, 0.69 [0.64–0.73]), fewer bleeding complication (3.4% versus 5.5%; adjusted odds ratio, 0.68 [0.62–0.74]), and higher rates of discharge to home (49.6% versus 35.7%; adjusted odds ratio, 1.43 [1.38–1.50]). Similar findings were found in sensitivity analyses of 185 501 patients receiving tPA within 4.5 hours of symptom onset. Conclusions: A nationwide quality improvement program for acute ischemic stroke was associated with substantial improvement in the timeliness of thrombolytic therapy start, increased thrombolytic treatment, and improved clinical outcomes.

Abstract WP200: Post-operative Infection Does not Increase Risk of Post-operative Stroke: Analysis From a Nationwide Quality Initiative Program

Stroke ◽  
2016 ◽  
Vol 47 (suppl_1) ◽  
Author(s):  
Benjamin R Kummer ◽  
Rebecca Hazan ◽  
Hooman Kamel ◽  
Alexander E Merkler ◽  
Joshua Z Willey ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Odds Ratio ◽  
Postoperative Infection ◽  
Adjusted Odds Ratio ◽  
Risk Of Infection ◽  
Postoperative Stroke ◽  
Increased Risk ◽  
Increase Risk ◽  
Initiative Program ◽  
The Relationship

Introduction: Infection has been described as a trigger for acute ischemic stroke, but the relationship between postoperative infection and the risk of postoperative stroke is unclear. We investigated the association between postoperative infection and stroke using the American College of Surgeons National Surgical Quality Initiative Program (NSQIP) database. Hypothesis: Postoperative infection is associated with an increased risk of postoperative stroke. Methods: We used the NSQIP database to identify all patients who underwent surgery between the years of 2000 and 2010 and developed a postoperative stroke within 30 days of surgery. The group was further stratified according to the presence of infection preceding stroke. Using a logistic regression model adjusted for age, race, sex, medical comorbidities, surgical type, and dichotomized functional status, we compared the risk of stroke in patients with and without preceding infections, and investigated the risk of infection following stroke. Results: 729,886 surgical patients were identified, of whom 2,703 (0.3%) developed postoperative stroke. 848 (0.12%) patients developed both postoperative stroke and infection. Among patients who had postoperative stroke, 100 (3.7%) had developed an infection prior to developing a stroke. Patients with infection prior to stroke had a lower risk of stroke than patients who did not develop infection prior to stroke (adjusted odds ratio [OR] 0.25, 95%CI 0.20-0.32). 748 patients (0.1%) developed an infection after having a postoperative stroke. These patients had a higher risk of infection (incidence rate ratio 2.76, 95%CI 2.57-2.97) and a higher odds of infection (adjusted odds ratio [OR] 3.47, 95%CI 3.18-3.78) than patients who did not have a stroke. Conclusions: We found that the presence of a preceding infection was associated with a low risk of postoperative stroke in a large surgical inpatient sample. Although the total number of strokes may have been under-reported, these results conflict with other studies that report that infection is a trigger for ischemic stroke. Further analyses using more granular data are needed to investigate the relationship between postoperative infection and the risk of postoperative stroke.

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