scholarly journals Population-based study of ischemic stroke risk after trauma in children and young adults

Neurology ◽  
2017 ◽  
Vol 89 (23) ◽  
pp. 2310-2316 ◽  
Author(s):  
Christine K. Fox ◽  
Nancy K. Hills ◽  
David R. Vinson ◽  
Adam L. Numis ◽  
Rochelle A. Dicker ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Stroke Risk ◽  
Motor Vehicle ◽  
Care Delivery ◽  
Population Based ◽  
Young Cohort ◽  
Trauma Patients ◽  
Arterial Ischemic Stroke ◽  
Vascular Abnormality ◽  
Stroke Incidence

Objective:To quantify the incidence, timing, and risk of ischemic stroke after trauma in a population-based young cohort.Methods:We electronically identified trauma patients (<50 years old) from a population enrolled in a Northern Californian integrated health care delivery system (1997–2011). Within this cohort, we identified cases of arterial ischemic stroke within 4 weeks of trauma and 3 controls per case. A physician panel reviewed medical records, confirmed cases, and adjudicated whether the stroke was related to trauma. We calculated the 4-week stroke incidence and estimated stroke odds ratios (OR) by injury location using logistic regression.Results:From 1,308,009 trauma encounters, we confirmed 52 trauma-related ischemic strokes. The 4-week stroke incidence was 4.0 per 100,000 encounters (95% confidence interval [CI] 3.0–5.2). Trauma was multisystem in 26 (50%). In 19 (37%), the stroke occurred on the day of trauma, and all occurred within 15 days. In 7/28 cases with cerebrovascular angiography at the time of trauma, no abnormalities were detected. In unadjusted analyses, head, neck, chest, back, and abdominal injuries increased stroke risk. Only head (OR 4.1, CI 1.1–14.9) and neck (OR 5.6, CI 1.03–30.9) injuries remained associated with stroke after adjusting for demographics and trauma severity markers (multisystem trauma, motor vehicle collision, arrival by ambulance, intubation).Conclusions:Stroke risk is elevated for 2 weeks after trauma. Onset is frequently delayed, providing an opportunity for stroke prevention during this period. However, in one-quarter of stroke cases with cerebrovascular angiography at the time of trauma, no vascular abnormality was detected.

Central venous catheter use increases ischemic stroke risk: a nationwide population-based study

QJM ◽  
2019 ◽  
Vol 112 (10) ◽  
pp. 771-778 ◽  
Author(s):  
P -H Liao ◽  
C -Y Lai ◽  
C -H Wu ◽  
Y -C Su ◽  
C -W Wei ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Propensity Score ◽  
Central Venous Catheter ◽  
Stroke Risk ◽  
Comparison Group ◽  
Venous Catheter ◽  
Population Based ◽  
Central Venous ◽  
Stroke Incidence ◽  
Ischemic Stroke Risk

Abstract Background Central venous catheter (CVC) placement is a common procedure used for the treatment of critically ill patients. However, ischemic stroke is a complication after CVC placement. Aim This study investigated the association between CVC placement and ischemic stroke risk in an Asian population. Design Population-based retrospective study. Methods We enrolled 37 623 patients who ever-received CVC placement over 2000–10 and propensity score-matched individuals without CVC placement as the comparison cohort from the Taiwan National Health Insurance Research Database. We determined the cumulative incidence rates and adjusted hazard ratios (aHRs) for ischemic stroke. Results We finally identified and enrolled 34 164 propensity score-matched pairs of individuals. Compared with the comparison group, CVC placement increased the average annual ischemic stroke incidence [19.5 vs. 11.6 per 10 000 person-years; crude HR=1.28, 95%, confidence interval (CI)=1.21–1.35; adjusted subhazard ratio (aSHR)=1.4, 95% CI = 1.33–1.47; P<0.001). In addition, compared with those aged >35 years, stroke risk was significantly higher in <35-year-old patients with CVC placement (aSHR=14.3, 95% CI=6.11–33.4; P<0.001). After <1-year follow-up, the ischemic stroke incidence rate in the CVC placement group was ∼3.25-fold higher than that in the comparison group (aHR=3.25, 95% CI=2.9–3.63; P<0.0001). Conclusion CVC placement increases ischemic stroke risk, particularly in those aged ≤35 years; this trend warrants further investigation.

scholarly journals B.3 The incidence of perinatal stroke is 1:1200 births in Southern Alberta: Population-based incidence of disease-specific perinatal stroke

2021 ◽  
Vol 48 (s3) ◽  
pp. S16-S16
Author(s):  
M Dunbar ◽  
J Hodge ◽  
A Floer ◽  
A Kirton
Keyword(s):  
Ischemic Stroke ◽  
Hemorrhagic Stroke ◽  
Case Series ◽  
Population Based ◽  
Arterial Ischemic Stroke ◽  
Stroke Incidence ◽  
Perinatal Stroke ◽  
Cerebral Sinovenous Thrombosis ◽  
Southern Alberta ◽  
Disease Specific

Background: Perinatal stroke encompasses six cerebrovascular syndromes which occur between the 20th week of gestation and the 28th post-natal day. Subtypes are neonatal arterial ischemic stroke (NAIS), neonatal cerebral sinovenous thrombosis (CSVT), neonatal hemorrhagic stroke (NHS), arterial presumed perinatal ischemic stroke (APPIS), periventricular venous infarction (PVI), and presumed perinatal hemorrhagic stroke (PPHS). Inconsistent terminology and lack of population-based case series has limited accurate measurement of disease-specific perinatal stroke incidence. Our objective was to define the incidence of the subtypes of perinatal stroke using a population-based cohort. Methods: The Alberta Perinatal Stroke Project is a research cohort established in 2008 in Southern Alberta. Case acquisition included retrospective hospital and ICD code searches (1990-2008) and prospective enrollment from all NICU and neurology/stroke clinics (2008-2017). Results: The overall incidence of perinatal stroke in Southern Alberta was 9.0 cases per 10,000 births, or 1:1200 births. Per 10,000 births, the incidence of each subtype was: NAIS = 3.2 (~1:3000), APPIS =1.2 (~1:8500), PVI = 1.5 (~1:6500), CSVT = 1.0 (~1:9900), NHS = 1.4 (~1/7300), PPHS = 0.1 (1/82,000). Conclusions: The overall incidence of perinatal stroke in Southern Alberta is 1:1200 live births. Population-based sampling of disease-specific states may explain why this rate is much higher than previous estimates

Symptom patterns in childhood arterial ischemic stroke: Analysis of a population-based study in Germany

2018 ◽  
Vol 230 (06) ◽  
pp. 319-325
Author(s):  
Lucia Gerstl ◽  
Raphael Weinberger ◽  
Rüdiger von Kries ◽  
Florian Heinen ◽  
Andreas Sebastian Schroeder ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Clinical Symptoms ◽  
Population Based ◽  
Case Definition ◽  
Childhood Stroke ◽  
Older Children ◽  
Arterial Ischemic Stroke ◽  
Focal Neurological Deficit ◽  
Symptom Patterns ◽  
Specific Symptoms

Hintergrund Die zeitliche Verzögerung zwischen Symptombeginn und Diagnose ist eine Herausforderung in der Behandlung von Kindern mit arteriell ischämischem Schlaganfall. Frühere Studien zur klinischen Präsentation beschäftigten sich v. a. mit kumulativen Symptomen. Zielsetzung Ziel dieser Studie ist es, mögliche Symptommuster aufzuzeigen. Methoden In einer aktiven Beobachtungsstudie zwischen 01/2015 und 12/2016 (ESPED-Studie) wurden Kinder mit Erstdiagnose eines arteriell ischämischen Schlaganfalls eingeschlossen. Isoliert auftretende Erstsymptome wurden verschiedenen Symptomkombinationen gegenübergestellt. Zudem wurde untersucht, inwieweit ein als „akut“ oder „progredient“ klassifiziertes Auftreten der Symptome Rückschlüsse auf die zugrundeliegende Ätiologie erlaubt. Ergebnisse Es wurden 99 Kinder in die Studie eingeschlossen. Unabhängig vom Alter traten überwiegend fokale Symptome auf (86%). Krampfanfälle als Initialsymptom wurden insbesondere bei Säuglingen beschrieben (67%), wohin-gegen diffuse, unspezifische Symptome vor allem bei Vorschulkindern (38%) und älteren Kindern (59%) auftraten. Isoliert traten fokale Symptome bei 37 Kindern auf, 48 Kinder zeigten zusätzlich unspezifische Symptome, darunter auch 9 Kinder mit Krampfanfällen. Isolierte unspezifische Symptome zeigten sich lediglich bei 7 Kindern, 2 Kinder wurden nur mit Krampfanfällen symptomatisch. Die Akuität des Symptombeginns wurde bei 53/78 als „akut“ und bei “25/78 Fällen als „progredient“ klassifiziert, lieferte jedoch keinen Hinweis auf die zugrundeliegende Ätiologie. Schlussfolgerung Jedes neue fokal neurologische Defizit sollte unabhängig vom Auftreten (isoliert oder kombiniert, akut oder progredient) an einen kindlichen Schlaganfall denken lassen. Background Time delay between onset of clinical symptoms and diagnosis is a challenge in childhood arterial ischemic stroke. Most previous studies reported cumulative symptoms. Objective We attempted to identify typical symptom patterns and assessed their emergence in childhood stroke. Methods Prospective active surveillance in ESPED, a hospital based Pediatric Surveillance Unit for rare diseases in Germany, between January 2015 and December 2016. Case definition: first diagnosis of a radiologically confirmed arterial ischemic stroke. Symptom patterns were identified as occurring in isolation or in combination. We distinguished acute vs. progressive onset. We ascertained risk factors to identify the possible etiology. Results 99 children with childhood arterial ischemic stroke were reported. Focal symptoms were the predominant presenting feature (86%), independent of age. Seizures were more often seen in infants < 1 year (67%), whereas diffuse symptoms were more present in pre-school children (38%) and older children (59%). 37 children had focal features alone and 48 additional non-specific features, including 9 with seizures. Isolated non-specific features accounted for 7 cases, and 2 children had (focal) seizures as the only symptom. In 77% of all cases at least one risk factor was identified. The emergence of symptoms was acute in 53/78 cases and progressive in 25/78 cases. The pattern of emergence was unrelated to the underlying etiology. Conclusions Any new focal neurological deficit in isolation, or associated with seizures or further non-specific symptoms should alert to childhood stroke.

Abstract T MP66: Injury to the Head or Neck Increases Risk of Ischemic Stroke Three-fold After Trauma.

Stroke ◽  
2014 ◽  
Vol 45 (suppl_1) ◽  
Author(s):  
Christine K Fox ◽  
Adam L Numis ◽  
Steve Sidney ◽  
Heather J Fullerton
Keyword(s):  
Ischemic Stroke ◽  
Traumatic Injury ◽  
Young Patients ◽  
Risk Groups ◽  
Population Based ◽  
Incidence Rates ◽  
Neck Injury ◽  
Diagnostic Code ◽  
Stroke Incidence ◽  
Diagnostic Codes

Background: Over 2 million people under age 50 are seen in a U.S. emergency room monthly for non-fatal injuries. Our objective was to measure ischemic stroke incidence after traumatic injury in young patients and identify stroke risk factors. Methods: We performed a population-based study of ischemic stroke after trauma among people <50 years old in a Northern Californian integrated health care system. We electronically identified a cohort of patients with diagnostic codes for trauma (ICD-9 800-959.9) in emergency and inpatient encounters from 1997-2011, then identified ischemic stroke outcomes within 4 weeks. To determine stroke, we required an ICD-9 stroke code (433-438) plus a radiology report of brain imaging containing a keyword: stroke, infarct#, thromb#, ischemi#, lacun#, or dissect#. A neurologist reviewed the reports to exclude those inconsistent with ischemic stroke. We obtained clinical data such as injury type from electronic databases to calculate stratified incidence rates and risk ratios. Results: From 1.5 million trauma encounters, we identified 197 ischemic strokes. The 4-week stroke incidence after any traumatic injury was 0.013% (95% CI 0.011, 0.015). Patients with stroke had a mean age of 37.7 years (SD 12.2) versus 24.0 years (SD 13.8) in those without stroke (P<0.0001). Patients with injury to the head or neck were more likely to have a stroke compared to those with other types of injuries (Table). The 4-week stroke incidence after head or neck injury was 0.07% (95% CI 0.05, 0.09) among adults and 0.005% (95% CI 0.001, 0.01) among children (P<0.0001). Of the 197 stroke cases, 16% (95% CI 11, 22) had a diagnostic code for cranio-cervical dissection. Conclusions: A 4-week stroke incidence of 0.013% suggests that 260 young people have an ischemic stroke after a traumatic injury every month in the U.S. Further research is needed to identify the highest risk groups, such as those with head or neck injury, and opportunities for stroke prevention.

Abstract P287: Sex Differences in Stroke Incidence: The REGARDS Study

Circulation ◽  
2012 ◽  
Vol 125 (suppl_10) ◽  
Author(s):  
Virginia J Howard ◽  
Suzanne E Judd ◽  
Abraham J Letter ◽  
Dawn O Kleindorfer ◽  
Leslie A McClure ◽  
...  
Keyword(s):  
Sex Differences ◽  
Stroke Risk ◽  
Proportional Hazards ◽  
Population Based ◽  
Incidence Rates ◽  
National Data ◽  
Stroke Incidence ◽  
The Difference ◽  
Regards Study

Background: There are strikingly few national data available to describe sex differences in age-specific stroke incidence. Methods: REGARDS is a national, population-based, longitudinal study of black and white participants aged > 45 years old, with oversampling of blacks and residents of the stroke belt. Between 2003 and 2007, 30,239 participants were enrolled and examined; follow-up is every 6 months by telephone for self- or proxy-reported stroke, with retrieval and adjudication of medical records by physicians. This analysis included 27,756 participants with follow up data who had no physician-diagnosed stroke at baseline. Stroke incidence rates were calculated as the number of stroke events divided by the person-years at risk with 95% confidence limits. Proportional hazards models were used to assess the race-specific association of sex with stroke risk by age strata (<65, 65–74, and 75+) after adjustment for socioeconomic factors, and Framingham stroke risk factors. Results: There were 613 incident strokes events over 135,551 person-years of follow-up. Stroke incidence rates increased with age (from 237/100,000 to 1003/100,000), and were higher in men than women in both blacks and whites (left panel of figure). After multivariable adjustment, men had higher risk than women at younger ages (<75) but for the 65–75 age group, the difference is larger for blacks than whites (right panel of figure). Discussion: These national data confirm the patterns in male/female stroke risk observed in the Greater Cincinnati/Northern Kentucky Stroke Study, with smaller sex differences at older ages, and for men, larger excess risk in whites than blacks.

scholarly journals Association between Anemia and Stroke in Females: A Nationwide, Population-Based Cohort Study in Taiwan

2020 ◽  
Vol 17 (20) ◽  
pp. 7440
Author(s):  
Yuan Sui ◽  
Chien-Tai Hong ◽  
Li-Nien Chien ◽  
Hung-Yi Liu ◽  
Hung-Yi Chiou ◽  
...  
Keyword(s):  
Risk Factor ◽  
Cohort Study ◽  
Ischemic Stroke ◽  
Stroke Risk ◽  
Medical Condition ◽  
Positive Association ◽  
Population Based ◽  
Reproductive Age ◽  
Research Database ◽  
Female Patients

Optimal stroke prevention strategies for women should take into account specific sex-related stroke risk factors. Anemia is a common medical condition in females, particularly in women of reproductive age. This study investigated whether anemia is an independent risk factor for stroke in females in a population-based cohort study. We investigated newly diagnosed anemic female patients with no history of central nervous system disease, psychiatric disorders, traumatic brain injury, major operations or hemorrhagic diseases identified from the Taiwan National Health Insurance Research Database. Non-anemic matched controls (1:1) were selected based on a propensity score estimated using a logistic regression model that included demographic characteristics and comorbidities. A competing risk analysis was applied to estimate the stroke risk in anemic patients compared to that of their matched controls. In our study, the adjusted sub-distribution hazard ratios (aSHRs) of overall, hemorrhagic and ischemic stroke in anemic female patients aged <50 years were 1.35 (95% confidence interval (CI): 1.19–1.52, p < 0.001), 1.31 (95% CI, 1.09-1.56, p < 0.003), and 1.35 (95% CI, 1.15–1.58, p < 0.001), respectively, compared to non-anemic female controls. However, a positive association between anemia and stroke was not found for those aged ≥50 years. Similar results were observed when the follow-up age was limited to 50 years to reduce the potential effects of menopause on stroke. In conclusion, the present population-based cohort study found that anemia is a potential risk factor for overall, hemorrhagic and ischemic stroke in females of reproductive age.

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.

Nonapnea sleep disorders are associated with subsequent ischemic stroke risk: a nationwide, population-based, retrospective cohort study

2013 ◽  
Vol 14 (12) ◽  
pp. 1341-1347 ◽  
Author(s):  
Wei-Shih Huang ◽  
Chon-Haw Tsai ◽  
Cheng-Li Lin ◽  
Fung-Chang Sung ◽  
Yen-Jung Chang ◽  
...  
Keyword(s):  
Cohort Study ◽  
Ischemic Stroke ◽  
Sleep Disorders ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Stroke Risk ◽  
Population Based ◽  
Ischemic Stroke Risk

scholarly journals Is migraine a risk factor for pediatric stroke?

Cephalalgia ◽  
2015 ◽  
Vol 35 (14) ◽  
pp. 1252-1260 ◽  
Author(s):  
Amy A Gelfand ◽  
Heather J Fullerton ◽  
Alice Jacobson ◽  
Stephen Sidney ◽  
Peter J Goadsby ◽  
...  
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Cohort Study ◽  
Ischemic Stroke ◽  
Incidence Rate ◽  
Stroke Risk ◽  
Stroke Incidence ◽  
Post Hoc Analysis ◽  
Ischemic Stroke Risk ◽  
Post Hoc

Importance Our understanding of risk factors for childhood stroke is incomplete. In adults, migraine with aura is associated with a two-fold increase in ischemic stroke risk. Objective In this cohort study we examine the association between migraine and stroke among children in Kaiser Permanente Northern California (KPNC). Design, setting, and participants Children ages 2–17 years who were members of KPNC for ≥6 months between 1997 and 2007 were included. Migraine cohort members had one or more of: an ICD-9 code for migraine, migraine listed as a significant health problem, or a prescription for a migraine-specific medication. The comparison group was children with no evidence of headache. Main outcome measures Main outcome measures included stroke incidence rates and incidence rate ratios (IR). Results Among the 1,566,952 children within KPNC during the study period, 88,164 had migraine, and 1,323,142 had no evidence of headache. Eight migraineurs had a stroke (three (38%) hemorrhagic; five (63%) ischemic). Eighty strokes occurred in children without headache (53 (66%) hemorrhagic; 27 (34%) ischemic). The ischemic stroke incidence rate was 0.9/100,000 person-years in migraineurs vs. 0.4/100,000 person-years in those without headache; IR 2.0 (95% CI 0.8–5.2). A post-hoc analysis of adolescents (12–17 years) showed an increased risk of ischemic stroke among those with migraine; IR 3.4 (95% CI 1.2–9.5). The hemorrhagic stroke incidence rate was 0.5/100,000 person-years in migraineurs and 0.9/100,000 person-years in those without headache; IR 0.6 (95% CI 0.2–2.0). Conclusions There was no statistically significant increase in hemorrhagic or ischemic stroke risk in pediatric migraineurs in this cohort study. A post-hoc analysis found that ischemic stroke risk was significantly elevated in adolescents with migraine. Future studies should focus on identifying risk factors for ischemic stroke among adolescent migraineurs. Based on adult data, we recommend that migraine aura status should be studied as a possible risk factor for ischemic stroke among adolescent migraineurs.

scholarly journals Circulating interleukin-6 levels and incident ischemic stroke: a systematic review and meta-analysis of population-based cohort studies

2021 ◽  
Author(s):  
Andreas Papadopoulos ◽  
Konstantinos Palaiopanos ◽  
Harry Björkbacka ◽  
Annette Peters ◽  
James A. de Lemos ◽  
...  
Keyword(s):  
Risk Factors ◽  
Ischemic Stroke ◽  
Cohort Studies ◽  
Stroke Risk ◽  
Meta Analysis ◽  
Population Based ◽  
Risk Of Bias ◽  
Vascular Risk ◽  
Ischemic Stroke Risk ◽  
Meta Analyses

ABSTRACTObjectiveTo determine the association between circulating interleukin-6 (IL-6) levels and risk of incident ischemic stroke in the general population.MethodsFollowing the PRISMA guidelines, we systematically searched the literature for population-based prospective cohort studies exploring the association between circulating IL-6 levels and risk of incident ischemic stroke. We pooled association estimates for ischemic stroke risk with random-effect meta-analyses and explored non-linear effects in dose-response meta-analyses. Risk of bias was assessed with the Newcastle-Ottawa scale (NOS).ResultsWe identified 11 studies (n=27,411 individuals; 2,669 incident stroke cases) meeting our eligibility criteria. Overall, quality of the included studies was high (median 8 out of 9 NOS points). In meta-analyses, 1-standard deviation increment in circulating IL-6 levels was associated with a 19% increase in risk of incident ischemic stroke over a mean follow-up of 12.4 years (RR 1.19; 95% CI 1.10 to 1.28). A dose-response meta-analysis showed a linear association between circulating IL-6 levels and ischemic stroke risk. There was only moderate heterogeneity and the results were consistent in sensitivity analyses restricted to studies of low risk of bias and studies fully adjusting for demographic and vascular risk factors. The results also remained stable following adjustment for publication bias.ConclusionsHigher circulating IL-6 levels in community-dwelling individuals are associated with higher long-term risk of incident ischemic stroke in a linear pattern and independently of conventional vascular risk factors. Along with findings from genetic studies and clinical trials, these results provide additional support for a key role of IL-6 signaling in ischemic stroke.

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