scholarly journals Hyperacute Recanalization Strategies and Childhood Stroke in the Evidence Age

Stroke ◽  
2021 ◽  
Vol 52 (1) ◽  
pp. 381-384
Author(s):  
Stéphane Chabrier ◽  
Augustin Ozanne ◽  
Olivier Naggara ◽  
Grégoire Boulouis ◽  
Béatrice Husson ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Observational Studies ◽  
Real Life ◽  
Intravenous Thrombolysis ◽  
Clot Lysis ◽  
Pediatric Stroke ◽  
Arterial Ischemic Stroke ◽  
Long Time ◽  
The Right ◽  
High Level

No controlled pharmacological studies are available in the field of pediatric stroke, except for sickle cell disease. Therefore, while pharmacological and mechanical recanalization treatments have repeatedly shown clinical benefit in adults with arterial ischemic stroke, pediatric strokologists still cannot base their therapeutic management (including hyperacute strategies) on high-level evidence. Once again, pediatricians face the same dichotomic choice: adapting adult procedures now versus waiting—for a long time—for the corresponding pediatric trials. One way out is building a compromise based on observational studies with large, longitudinal, comprehensive, real-life, and multisource dataset. Two recent high-quality observational studies have delivered promising conclusions on recanalization treatments in pediatric arterial ischemic stroke. TIPSTER (Thrombolysis in Pediatric Stroke Extended Results) showed that the risk of severe intracranial hemorrhage after intravenous thrombolysis is low; the Save Childs Study reported encouraging data about pediatric thrombectomy. Beyond the conclusion of a satisfactory global safety profile, a thorough analysis of the methods, populations, results, and therapeutic complications of these studies helps us to refine indications/contraindications and highlights the safeguards we need to rely on when discussing thrombolysis and thrombectomy in children. In conclusion, pediatric strokologists should not refrain from using clot lysis/retrieval tools in selected children with arterial ischemic stroke. But the implementation of hyperacute care is only feasible if the right candidate is identified through the sharing of common adult/pediatric protocols and ward collaboration, formalized well before the child’s arrival. These anticipated protocols should never undervalue contraindications from adult guidelines and must involve the necessary pediatric expertise when facing specific causes of stroke, such as focal cerebral arteriopathy of childhood.

scholarly journals Incorporation of α2-Plasmin Inhibitor into Fibrin Clots and Its Association with the Clinical Outcome of Acute Ischemic Stroke Patients

Biomolecules ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 347
Author(s):  
Zsuzsa Bagoly ◽  
Barbara Baráth ◽  
Rita Orbán-Kálmándi ◽  
István Szegedi ◽  
Réka Bogáti ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Intracranial Hemorrhage ◽  
Intravenous Thrombolysis ◽  
Fibrin Clot ◽  
Clot Lysis ◽  
Stroke Patients ◽  
Plasmin Inhibitor ◽  
Fibrin Clots

Cross-linking of α2-plasmin inhibitor (α2-PI) to fibrin by activated factor XIII (FXIIIa) is essential for the inhibition of fibrinolysis. Little is known about the factors modifying α2-PI incorporation into the fibrin clot and whether the extent of incorporation has clinical consequences. Herein we calculated the extent of α2-PI incorporation by measuring α2-PI antigen levels from plasma and serum obtained after clotting the plasma by thrombin and Ca2+. The modifying effect of FXIII was studied by spiking of FXIII-A-deficient plasma with purified plasma FXIII. Fibrinogen, FXIII, α2-PI incorporation, in vitro clot-lysis, soluble fibroblast activation protein and α2-PI p.Arg6Trp polymorphism were measured from samples of 57 acute ischemic stroke patients obtained before thrombolysis and of 26 healthy controls. Increasing FXIII levels even at levels above the upper limit of normal increased α2-PI incorporation into the fibrin clot. α2-PI incorporation of controls and patients with good outcomes did not differ significantly (49.4 ± 4.6% vs. 47.4 ± 6.7%, p = 1.000), however it was significantly lower in patients suffering post-lysis intracranial hemorrhage (37.3 ± 14.0%, p = 0.004). In conclusion, increased FXIII levels resulted in elevated incorporation of α2-PI into fibrin clots. In stroke patients undergoing intravenous thrombolysis treatment, α2-PI incorporation shows an association with the outcome of therapy, particularly with thrombolysis-associated intracranial hemorrhage.

Pediatric Hyperacute Arterial Ischemic Stroke Pathways at Canadian Tertiary Care Hospitals

2021 ◽  
pp. 1-8
Author(s):  
Maria Gladkikh ◽  
Hugh J. McMillan ◽  
Andrea Andrade ◽  
Cyrus Boelman ◽  
Ishvinder Bhathal ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Tertiary Care ◽  
Pediatric Stroke ◽  
Arterial Ischemic Stroke ◽  
Pediatric Hospitals ◽  
First Choice ◽  
Similarities And Differences ◽  
Pre Treatment ◽  
Magnetic Resonance Imaging Mri ◽  
Iv Tpa

ABSTRACT: Background: Childhood acute arterial ischemic stroke (AIS) is diagnosed at a median of 23 hours post-symptom onset, delaying treatment. Pediatric stroke pathways can expedite diagnosis. Our goal was to understand the similarities and differences between Canadian pediatric stroke protocols with the aim of optimizing AIS management. Methods: We contacted neurologists at all 16 Canadian pediatric hospitals regarding AIS management. Established protocols were analyzed for similarities and differences in eight domains. Results: Response rate was 100%. Seven (44%) centers have an established AIS protocol and two (13%) have a protocol under development. Seven centers do not have a protocol; two redirect patients to adult neurology, five rely on a case-by-case approach for management. Analysis of the seven protocols revealed differences in: 1) IV-tPA dosage: age-dependent 0.75–0.9 mg/kg (N = 1) versus age-independent 0.9 mg/kg (N = 6), with maximum doses of 75 mg (N = 1) or 90 mg (N = 6); 2) IV-tPA lower age cut-off: 2 years (N = 5) versus 3 or 10 years (each N = 1); 3) IV-tPA exclusion criteria: PedNIHSS score <4 (N = 3), <5 (N = 1), <6 (N = 3); 4) first choice of pre-treatment neuroimaging: computed tomography (CT) (N = 3), magnetic resonance imaging (MRI) (N = 2) or either (N = 2); 5) intra-arterial tPA use (N = 3) and; 6) mechanical thrombectomy timeframe: <6 hour (N = 3), <24 hour (N = 2), unspecified (N = 2). Conclusions: Although 44% of Canadian pediatric hospitals have established AIS management pathways, several differences remain among centers. Some criteria (dosage, imaging) reflect adult AIS literature. Canadian expert consensus regarding IV-tPA and endovascular treatment should be established to standardize and implement AIS protocols across Canada.

Abstract WMP113: Headache At Stroke Onset Is Present In Half Of All Older Children With Arterial Ischemic Stroke

Stroke ◽  
2017 ◽  
Vol 48 (suppl_1) ◽  
Author(s):  
Lori L Billinghurst ◽  
Adam Kirton ◽  
Steven Pavlakis ◽  
Jo Ellen Lee ◽  
Luigi Titomanlio ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Right Hemisphere ◽  
Female Gender ◽  
Stroke Onset ◽  
Pediatric Stroke ◽  
Arterial Ischemic Stroke ◽  
Anterior Circulation ◽  
Stroke Registry ◽  
Young Infants ◽  
Individual Site

Introduction: Headache at stroke onset occurs in up to a quarter of adults and is associated with younger age, female gender, right hemisphere and cerebellar infarcts. Little is known about headache at stroke onset in children. Methods: Children (29 days-18 years) with clinical and radiographic confirmation of arterial ischemic stroke were prospectively enrolled in the International Pediatric Stroke Study from 2003-2014. Details regarding demographics, stroke presentation and infarct location were obtained from the multi-center, pediatric stroke registry. Headache at stroke presentation was classified and annotated in the registry by the individual site investigators as present, absent or unclear. Results: We analyzed 2103 children. Half of all subjects ≥ 6 yo reported headache at stroke onset (N=509/1047, 49%; Figure). Headache was less prevalent in children < 6 yo (N=112/1056, 11%; p<0.001), though headache presentation was more commonly classified as unclear (10% vs 32%; p<0.001). In children ≥ 6 yo, headache was significantly associated with papilledema (p = 0.03) and vertigo (p = 0.01), but not with hemiparesis (p = 0.11), visual field deficit (p = 0.90), aphasia (p = 0.35), dysarthria (p = 0.44), or ataxia (p = 0.50). Headache was more common in posterior than anterior circulation infarcts (p<0.001). There was a significant association between headache and right or bilateral hemisphere infarcts (p = 0.04) but not with gender (p = 0.76). Conclusion: Headache is more prevalent in children than adults at stroke ictus and shares similar associations, including infarcts involving the posterior circulation and right hemisphere. Headache may be under-reported in young infants and children due to pre-verbal stages of development. These findings have implications for early identification and treatment of pediatric stroke and warrant further investigation in prospective studies to distinguish stroke from more common benign mimics, including migraine.

scholarly journals Socioeconomic determinants of outcome after childhood arterial ischemic stroke

Neurology ◽  
2018 ◽  
Vol 91 (6) ◽  
pp. e509-e516 ◽  
Author(s):  
Lori C. Jordan ◽  
Nancy K. Hills ◽  
Christine K. Fox ◽  
Rebecca N. Ichord ◽  
Paola Pergami ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Low Income ◽  
Maternal Education ◽  
Univariate Analysis ◽  
Multivariable Analysis ◽  
Rehabilitation Services ◽  
Pediatric Stroke ◽  
Arterial Ischemic Stroke ◽  
Annual Household Income ◽  
Neurologic Outcomes

ObjectiveTo determine whether lower socioeconomic status (SES) is associated with worse 1-year neurologic outcomes and reduced access to rehabilitation services in children with arterial ischemic stroke (AIS).MethodsFrom 2010 to 2014, the Vascular effects of Infection in Pediatric Stroke (VIPS) observational study prospectively enrolled and confirmed 355 children (age 29 days–18 years) with AIS at 37 international centers. SES markers measured via parental interview included annual household income (US dollars) at the time of enrollment, maternal education level, and rural/suburban/urban residence. Receipt of rehabilitation services was measured by parental report. Pediatric Stroke Outcome Measure scores were categorized as 0 to 1, 1.5 to 3, 3.5 to 6, and 6.5 to 10. Univariate and multivariable ordinal logistic regression models examined potential predictors of outcome.ResultsAt 12 ± 3 months after stroke, 320 children had documented outcome measurements, including 15 who had died. In univariate analysis, very low income (<US $10,000), but not other markers of SES, was associated with worse outcomes (odds ratio [OR] 3.13, 95% confidence interval [CI] 1.43–6.88, p = 0.004). In multivariable analysis, including adjustment for stroke etiology, this association persisted (OR 3.17, 95% CI 1.18–8.47, p = 0.02). Income did not correlate with receiving rehabilitation services at 1 year after stroke; however, quality and quantity of services were not assessed.ConclusionsIn a large, multinational, prospective cohort of children with AIS, low income was associated with worse neurologic outcomes compared to higher income levels. This difference was not explained by stroke type, neurologic comorbidities, or reported use of rehabilitation services. The root causes of this disparity are not clear and warrant further investigation.

scholarly journals Diffusion imaging of cerebral diaschisis in neonatal arterial ischemic stroke

2015 ◽  
Vol 42 (S1) ◽  
pp. S15-S15
Author(s):  
R Srivastava ◽  
T Rajapakse ◽  
J Roe ◽  
X Wei ◽  
A Kirton
Keyword(s):  
Ischemic Stroke ◽  
Diffusion Imaging ◽  
Population Based ◽  
Pediatric Stroke ◽  
Arterial Ischemic Stroke ◽  
Long Term Outcomes ◽  
Primary Injury

Background: Neonatal arterial ischemic stroke (NAIS) is a leading cause of brain injury and cerebral palsy. Diffusion-weighted imaging (DWI) has revolutionized NAIS diagnosis and outcome prognostication. Diaschisis refers to changes in brain areas functionally connected but structurally remote from primary injury. We hypothesized that acute DWI can demonstrate cerebral diaschisis and evaluated associations with outcome. Methods: Subjects were identified from a prospective, population-based research cohort (Calgary Pediatric Stroke Program). Inclusion criteria were unilateral middle cerebral artery NAIS, DWI MRI within 10 days of birth, and >12-month follow-up (Pediatric Stroke Outcome Measure, PSOM). Diaschisis was quantified using a validated software method. Diaschisis-scores were corrected for infarct size and compared to outcomes (Mann-Whitney). Results: From 20 eligible NAIS, 2 were excluded for image quality. Of 18 remaining, 16 (89%) demonstrated diaschisis. Thalamus (88%) was most often involved. Age at imaging was not associated with diaschisis. Long-term outcomes available on 13 (81%) demonstrated no association between diaschisis score and PSOM categories. Conclusion: Cerebral diaschisis occurs in NAIS and can be quantified with DWI. Occurrence is common and should not be mistaken for additional infarction. Determining additional clinical significance will depend on larger samples with long-term outcomes.

Acute Treatments and Early Outcomes of Childhood Arterial Ischemic Stroke: First Analysis of the International Pediatric Stroke Study.

Blood ◽  
2008 ◽  
Vol 112 (11) ◽  
pp. 1978-1978 ◽  
Author(s):  
Neil A Goldenberg ◽  
Timothy J. Bernard ◽  
Anne Gordon ◽  
Heather J. Fullerton ◽  
Gabrielle A. deVeber
Keyword(s):  
Ischemic Stroke ◽  
South America ◽  
Antithrombotic Therapy ◽  
Geographic Region ◽  
Treatment Selection ◽  
Pediatric Stroke ◽  
Arterial Ischemic Stroke ◽  
Antithrombotic Treatment ◽  
Stroke Study ◽  
International Pediatric

Abstract Background: In pediatric arterial ischemic stroke (AIS) clinical treatment trials are lacking and treatment practices variable. Factors determining treatment selection and outcomes are important to delineate. Objective: We aimed to (1) describe acute treatments and outcomes in childhood AIS, and (2) test putative variables for treatment selection, and outcome in a prospective-retrospective multicenter international study. Methods: We evaluated treatments and early outcomes of children enrolled in the International Pediatric Stroke Study with AIS diagnosed at &gt;28 days and &lt;18 years of age from 2003 to 2007. Putative predictor variables for antithrombotic treatment selection included age, clinical AIS subtypes, geographic region (Asia, Australia, Canada, Europe, South America, and U.S.), and diagnosis pre- versus post-2004 (when pediatric AIS guidelines published). Results: Among 676 children with acute AIS, anticonvulsants and antibiotics were administered acutely in 57% and 40%, respectively; use of each decreased with age (P&lt;0.001). Acute anticoagulants (AAC; with/without concomitant anti-platelet therapy) were selected more frequently than either acute anti-platelet agents (AAP) alone or no acute antithrombotic treatment (NAAT) (43% AAC vs. 28% AAP alone and 29% NAAT). NAAT decreased with increasing age. AAC was most frequent in cerebral/cervical arterial dissection (n=52; 75% AAC vs. 6% AAP) and least frequent with moyamoya syndrome (n=72; 31% AC vs. 43% AAP). AAC was most common in Europe and Canada, AAC vs. AAP relatively balanced in the U.S., and AAP most common in Asia and South America. AAC use was similar pre- versus post-2004. At hospital discharge 71% had neurological deficits independent of age, subtype, or geographical region. Mortality at discharge was 3%. Conclusions: Acute anticoagulation is frequently but not uniformly employed in childhood AIS. With current treatment, the prevalence of neurological deficit at hospital discharge is high. These findings reflect disparity in published guidelines and highlight the need for clinical trials to reduce adverse outcomes. Figure 1. Acute antithrombotic therapy in childhood AIS, by geographic region. Figure 1. Acute antithrombotic therapy in childhood AIS, by geographic region.

Impact of Thrombophilia On Arterial Ischemic Stroke or Cerebral Venous Sinus Thromboses in Children: A Systematic Review & Meta-Analysis of Observational Studies.

Blood ◽  
2009 ◽  
Vol 114 (22) ◽  
pp. 3993-3993
Author(s):  
Lisa K Lütkhoff ◽  
Manuela Albisetti ◽  
Timothy J. Bernard ◽  
Mariana Bonduel ◽  
Leonardo R. Brandao ◽  
...  
Keyword(s):  
Risk Factors ◽  
Ischemic Stroke ◽  
Random Effects ◽  
Antiphospholipid Antibodies ◽  
Observational Studies ◽  
Meta Analysis ◽  
Inclusion Criteria ◽  
Arterial Ischemic Stroke ◽  
Off Label ◽  
The Impact

Abstract Abstract 3993 Poster Board III-929 Background The incidence of stroke in children is estimated at about 2.6 per 100,000 per year. Risk factors include congenital heart malformations, trauma, hemolytic anemias, collagen tissue diseases, inborn metabolic disorders, and infectious diseases. Apart from acquired thrombophilic risk factors, such as the presence of antiphospholipid antibodies, inherited thrombophilias (IT) have been found to be associated with stroke in infants and children. However, results of single studies on the risk of stroke onset associated with IT have been contradictory or inconclusive, mainly due to lack of statistical power. The aim of this study was to estimate the impact of thrombophilia (IT) on risk of childhood stroke via meta-analysis of published observational studies. Methods and Results A systematic search of electronic databases (Medline, EMBASE, OVID, Web of Science, The Cochrane Library) for studies published from 1970 to 2009 was conducted using key words in combination both as MeSH terms and text words. Citations were independently screened by two authors and those meeting the a priori defined inclusion criteria were retained. Data on year of publication, study design, country of origin, number of patients/controls, ethnicity, stroke type (arterial ischemic stroke [AIS]; cerebral venous sinus thrombosis [CSVT]) were abstracted. Publication bias indicator and heterogeneity across studies were evaluated, and summary odds ratios (ORs) and 95% confidence intervals (CIs) were calculated using both fixed-effects and random-effects models. Twenty-one of 185 references found met inclusion criteria. 1698 patients (AIS: 1291; CSVT: 407) and 2913 controls aged neonate to 18 years were enrolled. No significant heterogeneity was discerned across studies, and no publication bias was detected. A statistically significant association with stroke onset was demonstrated for each IT trait evaluated, with no difference found between AIS (table) and CSVT. Summary ORs/CIs (random-effects model) for AIS & CSVT cohorts were as follows: Protein C-deficiency (8.76/4.53-16.96), FV G1691A (3.34/2.66-4.26), FII G20210A (2.50/1.67-3.74), MTHFR T677T (1.61/1.21-2.14), antiphospholipid antibodies (5.84/3.06-11.18), elevated lipoprotein (a) (6.24/4.51-8.64), and combined ITs (8.85/3.32-23.57). Carrier rates reported for antithrombin- or protein S deficiency among patients were 1.5% and 1.6% as compared with 0.06% (p<0.001) and 0.4% (p=0.003) in healthy controls. Conclusions The present meta-analysis indicates that IT serve as risk factors for incident stroke. However, the impact of IT upon outcome and recurrence risk needs to be further investigated. Disclosures: Manco-Johnson: Baxter BioScience: Honoraria; Bayer HealthCare: Honoraria; CSL Behring: Honoraria; NovoNordisk: Honoraria; Octapharma: Honoraria. Off Label Use: Enoxaparin (LMWH) is used off-label in children to prevent symptomatic thromboembolism.

scholarly journals Focal Cerebral Arteriopathy of Childhood: Clinical and Imaging Correlates

Stroke ◽  
2021 ◽  
Author(s):  
Gabriela Oesch ◽  
Francisco A. Perez ◽  
Mark S. Wainwright ◽  
Dennis W.W. Shaw ◽  
Catherine Amlie-Lefond
Keyword(s):  
Ischemic Stroke ◽  
Pacific Northwest ◽  
Outcome Measure ◽  
Stroke Recurrence ◽  
Pediatric Stroke ◽  
Stroke Outcome ◽  
Arterial Ischemic Stroke ◽  
Electronic Health Record Data ◽  
Anterior Circulation ◽  
Cerebral Arteriopathy

Background and Purpose: Focal cerebral arteriopathy (FCA) of childhood with unilateral stenosis of the anterior circulation is reported to account for up to one-quarter of childhood arterial ischemic stroke, with stroke recurrence in 25% of cases. Limited knowledge regarding pathophysiology and outcome results in inconsistent treatment of FCA. Methods: Children with arterial ischemic stroke due to FCA between January 1, 2009, and January 1, 2019, were retrospectively identified at our institution which serves the US Pacific Northwest region. Electronic health record data, including neuroimaging studies, were reviewed, and the Pediatric Stroke Outcome Measure at 1 year was determined as the primary clinical end point. Results: Fifteen children were diagnosed with FCA, accounting for 19% of children with cerebral arteriopathies (n=77). Among children with FCA, the median age at the time of stroke was 6.8 years (Q1–Q3, 1.9–14.0 years). Four (20%) patients had worsening stroke, 3 of whom had concurrent infection. Three (20%) FCA cases were treated with steroids, one of whom had worsening stroke. Median Pediatric Stroke Outcome Measure at 1 year was 1.0 (Q1–Q3, 0.6–2.0). Variability in arteriopathy severity was observed within many patients. Patients with more severe arteriopathy using the Focal Cerebral Arteriopathy Severity Score had larger strokes and were more likely to have worsening stroke. The most common long-term neurological deficit was hemiparesis, which was present in 11 (73%) patients and associated with middle cerebral artery arteriopathy and infarcts. Conclusions: FCA may be less common than previously reported. Neuroimaging in FCA can help identify patients at greater risk for worsening stroke.

scholarly journals ASSUMPTIONS ON SOCIAL SUCCESS AND MOTIVATION IN YOUTHFUL AGE

2020 ◽  
Vol 7 ◽  
pp. 75
Author(s):  
Olga Kobzeva ◽  
Olga Tuzova
Keyword(s):  
Professional Competence ◽  
Young Men ◽  
Genetic Method ◽  
Social Success ◽  
Self Confidence ◽  
Personality Changes ◽  
Long Time ◽  
The Right ◽  
High Level ◽  
Level Of Motivation

The problem of social success has not been considered as an independent one in Psychology for a long time, but it has been included in the structure of research related to effective communication, social status and professional competence. The increased interest in it is due to the growing attention to the problem of personality changes, an increase in the environmental “challenges” to human abilities, as well as the need to quickly respond to changes in society. The authors study the role of social success in the structure of mental development of the personality; define the determinants that affect its formation and development. The purpose of research is to study the correlation between the level of motivation for success and assumptions on social success among youthful age. The study involved 258 respondents (99 young men and 159 young ladies aged 18 to 21 years). The researchers used a psychodiagnostic method, including two techniques (the “Successful person” method by G.R. Khuzeeva, the method of diagnosing motivation for success by T. Ehlers, in adaptation of E.P. Belinskaya), methods of mathematical and statistical analysis, a genetic method. The results of the study showed that the assumptions on social success in youthful age is associated with getting education, self-confidence, determination, hard work. The authors revealed the relationship between the learners’ level of motivation for success and their assumptions on social success. In a group of young men with a high level of motivation for success, assumptions on social success are associated with the activity aspect (diligence, one’s own activity, responsibility) and the humanistic orientation (well-disposed, responsive, able to sacrifice). Respondents with a low level of motivation for success have a material orientation in the image of success (careerist, entrepreneurial, has connections with the right people).  

Sign in / Sign up

Export Citation Format

Share Document