scholarly journals Differences in risk factors for 3 types of stroke

Neurology ◽  
2018 ◽  
Vol 90 (4) ◽  
pp. e298-e306 ◽  
Author(s):  
Alison J. Price ◽  
F. Lucy Wright ◽  
Jane Green ◽  
Angela Balkwill ◽  
Sau Wan Kan ◽  
...  

ObjectiveTo compare associations of behavioral and related factors for incident subarachnoid hemorrhage and intracerebral hemorrhage and ischemic stroke.MethodsA total of 712,433 Million Women Study participants without prior stroke, heart disease, or cancer reported behavioral and related factors at baseline (1999–2007) and were followed up by record linkage to national hospital admission and death databases. Cox regression yielded adjusted relative risks (RRs) by type of stroke. Heterogeneity was assessed with χ2 tests. When appropriate, meta-analyses were done of published prospective studies.ResultsAfter 12.9 (SD 2.6) years of follow-up, 8,128 women had an incident ischemic stroke, 2,032 had intracerebral hemorrhage, and 1,536 had subarachnoid hemorrhage. In women with diabetes mellitus, the risk of ischemic stroke was substantially increased (RR 2.01, 95% confidence interval [CI] 1.84–2.20), risk of intracerebral hemorrhage was increased slightly (RR 1.31, 95% CI 1.04–1.65), but risk of subarachnoid hemorrhage was reduced (RR 0.43, 95% CI 0.26–0.69) (heterogeneity by stroke type, p < 0.0001). Stroke incidence was greater in women who rated their health as poor/fair compared to those who rated their health as excellent/good (RR 1.36, 95% CI 1.30–1.42). Among 565,850 women who rated their heath as excellent/good, current smokers were at an increased risk of all 3 stroke types, (although greater for subarachnoid hemorrhage [≥15 cigarettes/d vs never smoker, RR 4.75, 95% CI 4.12–5.47] than for intracerebral hemorrhage [RR 2.30, 95% CI 1.94–2.72] or ischemic stroke [RR 2.50, 95% CI 2.29–2.72]; heterogeneity p < 0.0001). Obesity was associated with an increased risk of ischemic stroke and a decreased risk of hemorrhagic stroke (heterogeneity p < 0.0001). Meta-analyses confirmed the associations and the heterogeneity across the 3 types of stroke.ConclusionClassic risk factors for stroke have considerably different effects on the 3 main pathologic types of stroke.

Stroke ◽  
2017 ◽  
Vol 48 (suppl_1) ◽  
Author(s):  
Neal S Parikh ◽  
Babak B Navi ◽  
Yecheskel Schneider ◽  
Hooman Kamel

Introduction: Liver cirrhosis is characterized by a coagulopathy associated with both hemorrhagic and thrombotic complications. However, the risk of stroke - hemorrhagic and ischemic - in patients with cirrhosis has not been rigorously assessed. Methods: We performed a retrospective cohort study of Medicare beneficiaries ≥66 years of age using a 5% sample of inpatient and outpatient claims from 2008-2014. Our predictor was liver cirrhosis, defined by presence of at least two ICD-9-CM inpatient or outpatient claims for liver cirrhosis or its complications, a validated algorithm previously used to study cirrhosis in Medicare beneficiaries. The primary outcome was stroke, and the secondary outcomes were ischemic stroke, intracerebral hemorrhage, and subarachnoid hemorrhage. Outcomes were defined by validated ICD-9-CM algorithms. Patients were censored at the time of an outcome, death, or on December 31, 2014. We used survival analysis to compare stroke incidence in patients with and without liver cirrhosis. Cox proportional hazards analysis was used to evaluate the association between cirrhosis and stroke while adjusting for demographics and established stroke risk factors. Results: Among the 1,564,277 beneficiaries in our sample, we identified 10,512 (0.7%) patients with liver cirrhosis. The mean age of patients with cirrhosis was 74.1 (±6.5) years. Over a median follow-up of 5 years, 76,195 patients were hospitalized with a stroke. The incidence of stroke was 1.9% (95% confidence interval [CI], 1.7-2.1%) per year in patients with cirrhosis and 1.1% (95% CI, 1.1-1.1%) per year in patients without cirrhosis. After adjusting for demographics and vascular risk factors, patients with cirrhosis experienced a higher risk of stroke (hazard ratio [HR], 1.4; 95% CI, 1.2-1.5); however, associations appeared more robust for intracerebral hemorrhage (HR, 2.2; 95% CI, 1.7-2.8) and subarachnoid hemorrhage (HR, 2.0; 95% CI, 1.2-3.1) than for ischemic stroke (HR, 1.3; 95% CI, 1.1-1.4). Conclusions: We found that liver cirrhosis was associated with an increased risk of stroke, particularly hemorrhagic stroke. Our results build on recent work investigating the hemorrhagic and thrombotic complications of liver cirrhosis outside of the portal circulation.


2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Anxin Wang ◽  
Guangyao Wang ◽  
Qian Liu ◽  
Yingting Zuo ◽  
Shuohua Chen ◽  
...  

Abstract Background Triglyceride-glucose (TyG) index was recently suggested to be a reliable surrogate marker of insulin resistance. We aim to investigate the associations between baseline and long-term TyG index with subsequent stroke and its subtypes in a community-based cohort. Methods A total of 97,653 participants free of history of stroke in the Kailuan Study were included. TyG index was calculated as ln (fasting triglyceride [mg/dL] × fasting glucose [mg/dL]/2). Baseline TyG index was measured during 2006–2007. Updated cumulative average TyG index used all available TyG index from baseline to the outcome events of interest or the end of follow up. The outcome was the first occurrence of stroke, including ischemic stroke, intracerebral hemorrhage and subarachnoid hemorrhage. The associations of TyG index with outcomes were explored with Cox regression. Results During a median of 11.02 years of follow-up, 5122 participants developed stroke of whom 4277 were ischemic stroke, 880 intracerebral hemorrhage, and 144 subarachnoid hemorrhage. After adjusting for confounding variables, compared with participants in the lowest quartile of baseline TyG index, those in the third and fourth quartile were associated with an increased risk of stroke (adjusted hazard ratio [HR] 1.22, 95% confidence interval [CI] 1.12–1.33, and adjusted HR 1.32, 95% CI 1.21–1.44, respectively, P for trend < 0.001). We also found a linear association between baseline TyG index with stroke. Similar results were found for ischemic stroke. However, no significant associations were observed between baseline TyG index and risk of intracranial hemorrhage. Parallel results were observed for the associations of updated cumulative average TyG index with outcomes. Conclusions Elevated levels of both baseline and long-term updated cumulative average TyG index can independently predict stroke and ischemic stroke but not intracerebral hemorrhage in the general population during an 11-year follow-up.


2021 ◽  
pp. 108705472110256
Author(s):  
Lingjing Chen ◽  
Ellenor Mittendorfer-Rutz ◽  
Emma Björkenstam ◽  
Syed Rahman ◽  
Klas Gustafsson ◽  
...  

Objective: To investigate risk factors of disability pension (DP) in young adults diagnosed with ADHD in Sweden. Method: In total, 9718 individuals diagnosed with incident ADHD in young adult age (19–29 years) 2006 to 2011, were identified through national registers. They were followed for 5 years and Cox regression models were applied to analyze the DP risk (overall and by sex), associated with socio-demographics, work-related factors, and comorbid disorders. Results: Twenty-one percent of all received DP. Being younger at diagnosis (hazard ratio [HR] = 1.54; 95%confidence interval [CI] 1.39–1.71); low educational level (HR = 1.97; 95%CI 1.60–2.43 for <10 years); work-related factors at baseline (no income from work [HR = 2.64; 95%CI 2.35–2.98] and sickness absence >90 days [HR = 2.48; 95%CI2.17–2.83]); and schizophrenia/psychoses (HR = 2.16; 95%CI 1.66–2.80), autism (HR = 1.87; 95%CI 1.42–2.46), anxiety (HR = 1.34; 95%CI 1.22–1.49) were significantly associated with an increased risk of DP. Similar risk patterns were found in men and women. Conclusion: Work-related factors and comorbid mental disorders need to be highlighted in early vocational rehabilitation for individuals with ADHD.


2021 ◽  
pp. 1-10
Author(s):  
Wen Pan ◽  
Min Zhang ◽  
Zhenping Guo ◽  
Wenfeng Xiao ◽  
Chao You ◽  
...  

<b><i>Backgrounds:</i></b> Previous studies reported inconsistent results regarding associations between apolipoprotein E (<i>APOE</i>) polymorphism and clinical outcomes after ischemic stroke (IS), intracerebral hemorrhage (ICH), or subarachnoid hemorrhage (SAH). Thus, the study was designed to make a systematic review and meta-analysis regarding the association between <i>APOE</i> polymorphism and clinical outcome after IS, ICH, and SAH. <b><i>Methods:</i></b> To identify studies eligible for this meta-analysis, we searched for articles published before August 2021 in the databases (PubMed, Web of Science, and Google Scholar). We used STATA 12.0 software to compute hazard ratios (HRs) and their 95% confidence intervals (CIs) regarding <i>APOE</i> polymorphism and clinical outcome after IS, ICH, and SAH. <b><i>Results:</i></b> Meta-analysis showed no significant association between <i>APOE</i> polymorphism and functional outcome after IS with fixed effects models (ε4 carrier vs. non-ε4 carrier: HR, 1.00; 95% CI: 0.83–1.21, <i>I</i><sup>2</sup> = 29.4%, <i>p</i> = 0.183; ε2 carrier vs. non-ε2 carrier: HR, 0.92; 95% CI: 0.72–1.16, <i>I</i><sup>2</sup> = 15.6%, <i>p</i> = 0.307). Meta-analysis showed that ICH patients carrying ε4 allele have increased risk of poor outcome in Caucasian population with fixed effects models (ε4 carrier vs. non-ε4 carrier: HR, 1.75; 95% CI: 1.19–2.57, <i>I</i><sup>2</sup> = 0.0%, <i>p</i> = 0.543). Meta-analysis showed no significant association between <i>APOE</i> polymorphism and functional outcomes after SAH with random effects models (ε4 carrier vs. non-ε4 carrier: HR, 1.51; 95% CI: 0.80–2.84, <i>I</i><sup>2</sup> = 57.1%, <i>p</i> = 0.022). <b><i>Conclusions:</i></b> In conclusion, the present study demonstrated <i>APOE</i> ε4 carriers show worse functional outcomes after ICH, but not after IS or SAH. More large-scale studies were critical to explore the association between <i>APOE</i> polymorphism and clinical outcome after IS, ICH, and SAH.


2016 ◽  
Vol 47 (1) ◽  
pp. 53-58 ◽  
Author(s):  
Wesley T. O'Neal ◽  
Hooman Kamel ◽  
Dawn Kleindorfer ◽  
Suzanne E. Judd ◽  
George Howard ◽  
...  

Background: It is currently unknown if premature atrial contractions (PACs) detected on the routine screening electrocardiogram are associated with an increased risk of ischemic stroke. Methods: We examined the association between PACs and ischemic stroke in 22,975 (mean age 64 ± 9.2; 56% women; 40% black) participants from the Reasons for Geographic and Racial Differences in Stroke study. Participants who were free of stroke at baseline were included. PACs were detected from centrally read electrocardiograms at baseline. Cox regression was used to examine the association between PACs and ischemic stroke events through March 31, 2014. Results: PACs were present in 1,687 (7.3%) participants at baseline. In a Cox regression model adjusted for stroke risk factors and potential confounders, PACs were associated with an increased risk of ischemic stroke (hazards ratio (HR) 1.34, 95% CI 1.04-1.74). The relationship was limited to non-lacunar infarcts (HR 1.42, 95% CI 1.08-1.87), and not lacunar strokes (HR 1.01, 95% CI 0.51-2.03). An interaction by sex was detected, with the association between PACs and ischemic stroke being stronger among women (HR 1.82, 95% CI 1.29-2.56) than men (HR 1.03, 95% CI 0.69-1.52; p-interaction = 0.0095). Conclusion: PACs detected on the routine electrocardiogram are associated with an increased risk for non-lacunar ischemic strokes, especially in women.


Neurology ◽  
2020 ◽  
Vol 94 (9) ◽  
pp. e968-e977 ◽  
Author(s):  
Nicolas Raposo ◽  
Andreas Charidimou ◽  
Duangnapa Roongpiboonsopit ◽  
Michelle Onyekaba ◽  
M. Edip Gurol ◽  
...  

ObjectiveTo investigate whether acute convexity subarachnoid hemorrhage (cSAH) associated with acute lobar intracerebral hemorrhage (ICH) increases the risk of ICH recurrence in patients with cerebral amyloid angiopathy (CAA).MethodsWe analyzed data from a prospective cohort of consecutive survivors of acute spontaneous lobar ICH fulfilling the Boston criteria for possible or probable CAA (CAA-ICH). We analyzed baseline clinical and MRI data, including cSAH (categorized as adjacent or remote from ICH on a standardized scale), cortical superficial siderosis (cSS), and other CAA MRI markers. Multivariable Cox regression models were used to assess the association between cSAH and recurrent symptomatic ICH during follow-up.ResultsWe included 261 CAA-ICH survivors (mean age 76.2 ± 8.7 years). Of them, 166 (63.6%, 95% confidence interval [CI] 57.7%–69.5%) had cSAH on baseline MRI. During a median follow-up of 28.3 (interquartile range 7.2–57.0) months, 54 (20.7%) patients experienced a recurrent lobar ICH. In Cox regression, any cSAH, adjacent cSAH, and remote cSAH were independent predictors of recurrent ICH after adjustment for other confounders, including cSS. Incidence rate of recurrent ICH in patients with cSAH was 9.9 per 100 person-years (95% CI 7.3–13.0) compared with 1.2 per 100 person-years (95% CI 0.3–3.2) in those without cSAH (adjusted hazard ratio 7.5, 95% CI 2.6–21.1).ConclusionIn patients with CAA-related acute ICH, cSAH (adjacent or remote from lobar ICH) is commonly observed and heralds an increased risk of recurrent ICH. cSAH may help stratify bleeding risk and should be assessed along with cSS for prognosis and clinical management.


2021 ◽  
pp. 1-6
Author(s):  
Melvin Parasram ◽  
Neal S. Parikh ◽  
Alexander E. Merkler ◽  
Judy H. Ch’ang ◽  
Babak B . Navi ◽  
...  

<b><i>Introduction:</i></b> Non-traumatic subarachnoid hemorrhage (SAH) is associated with poor long-term functional outcomes, but the risk of ischemic stroke among SAH survivors is poorly understood. <b><i>Objectives:</i></b> The aim of this study was to evaluate the risk of ischemic stroke among survivors of SAH. <b><i>Methods:</i></b> We performed a retrospective cohort study using claims data from Medicare beneficiaries from 2008 to 2015. The exposure was a diagnosis of SAH, while the outcome was an acute ischemic stroke, both identified using previously validated <i>ICD-9-CM</i> diagnosis codes. We used Cox regression analysis adjusting for demographics and stroke risk factors to evaluate the association between SAH and long-term risk of ischemic stroke. <b><i>Results:</i></b> Among 1.7 million Medicare beneficiaries, 912 were hospitalized with non-traumatic SAH. During a median follow-up of 5.2 years (IQR, 2.7–6.7), the cumulative incidence of ischemic stroke was 22 per 1,000 patients per year among patients with SAH, and 7 per 1,000 patients per year in those without SAH. In adjusted Cox models, SAH was associated with an increased risk of ischemic stroke (HR, 2.0; 95% confidence interval, 1.4–2.8) as compared to beneficiaries without SAH. Similar results were obtained in sensitivity analyses, when treating death as a competing risk (sub HR, 3.0; 95% CI, 2.8–3.3) and after excluding ischemic stroke within 30 days of SAH discharge (HR, 1.5; 95% CI, 1.1–2.3). <b><i>Conclusions:</i></b> In a large, heterogeneous national cohort of elderly patients, survivors of SAH had double the long-term risk of ischemic stroke. SAH survivors should be closely monitored and risk stratified for ischemic stroke.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jong-Ho Park ◽  
Sun U. Kwon ◽  
Hyuk Sung Kwon ◽  
Sung Hyuk Heo

AbstractPrior intracerebral hemorrhage (ICH) is associated with increased risk of ischemic stroke. Since white matter hyperintensity (WMH) is associated with ischemic stroke and ICH, this study aimed to evaluate the relationship between ICH and the risk of recurrent stroke by WMH severity. From a prospective multicenter database comprising 1454 noncardioembolic stroke patients with cerebral small-vessel disease, patients were categorized by presence or absence of prior ICH and WMH severity: mild-moderate WMH (reference); advanced WMH; ICH with mild-moderate WMH; and ICH with advanced WMH. Among patients with ICH, the association with stroke outcomes by WMH burden was further assessed. The primary endpoint was ischemic stroke and hemorrhagic stroke. The secondary endpoint was major adverse cardiovascular events (MACE): stroke/coronary heart disease/vascular death. During the mean 1.9-year follow-up period, the ischemic stroke incidence rate per 100 person-years was 2.7, 4.0, 2.5, and 8.1 in increasing severity, and the rate of hemorrhagic stroke was 0.7, 1.3, 0.6, and 2.1, respectively. The risk of ischemic stroke was higher in ICH with advanced WMH (adjusted HR 2.62; 95% CI 1.22−5.60) than the reference group, while the risk of hemorrhagic stroke trended higher (3.75, 0.85–16.53). The risk of MACE showed a similar pattern in ICH with advanced WMH. Among ICH patients, compared with mild WMH, the risk of ischemic stroke trended to be higher in advanced WMH (HR 3.37; 95% CI 0.90‒12.61). Advanced WMH was independently associated with an increased risk of hemorrhagic stroke (HR 33.96; 95% CI 1.52−760.95). Given the fewer rate of hemorrhagic stroke, the risk of hemorrhagic stroke might not outweigh the benefits of antiplatelet therapy for secondary prevention.


Stroke ◽  
2020 ◽  
Vol 51 (9) ◽  
pp. 2683-2689
Author(s):  
Hendrik Reinink ◽  
Burak Konya ◽  
Marjolein Geurts ◽  
L. Jaap Kappelle ◽  
H. Bart van der Worp

Background and Purpose: Do-not-resuscitate (DNR) orders in the first 24 hours after intracerebral hemorrhage have been associated with an increased risk of early death. This relationship is less certain for ischemic stroke. We assessed the relation between treatment restrictions and mortality in patients with ischemic stroke and in patients with intracerebral hemorrhage. We focused on the timing of treatment restrictions after admission and the type of treatment restriction (DNR order versus more restrictive care). Methods: We retrospectively assessed demographic and clinical data, timing and type of treatment restrictions, and vital status at 3 months for 622 consecutive stroke patients primarily admitted to a Dutch university hospital. We used a Cox regression model, with adjustment for age, sex, comorbidities, and stroke type and severity. Results: Treatment restrictions were installed in 226 (36%) patients, more frequently after intracerebral hemorrhage (51%) than after ischemic stroke (32%). In 187 patients (83%), these were installed in the first 24 hours. Treatment restrictions installed within the first 24 hours after hospital admission and those installed later were independently associated with death at 90 days (adjusted hazard ratios, 5.41 [95% CI, 3.17–9.22] and 5.36 [95% CI, 2.20–13.05], respectively). Statistically significant associations were also found in patients with ischemic stroke and in patients with just an early DNR order. In those who died, the median time between a DNR order and death was 520 hours (interquartile range, 53–737). Conclusions: The strong relation between treatment restrictions (including DNR orders) and death and the long median time between a DNR order and death suggest that this relation may, in part, be causal, possibly due to an overall lack of aggressive care.


2017 ◽  
Vol 48 (1-2) ◽  
pp. 72-78 ◽  
Author(s):  
Chung-Fen Tsai ◽  
Jiann-Shing Jeng ◽  
Niall Anderson ◽  
Cathie L.M. Sudlow

Background: Chinese populations have a higher stroke incidence, a higher proportion of intracerebral hemorrhage (ICH), and a lower proportion of ischemic stroke (IS) as compared with white populations. The reasons are not fully understood. Methods: To evaluate the differences of major risk factors between ICH and IS in Chinese stroke patients, we analysed acute ICH and IS patients consecutively recruited in National Taiwan University Hospital Stroke Registry from 2006 to 2011. We used multiple logistic regression models to examine the associations of risk factors with ICH vs. IS. Also, we conducted subgroup analyses when a strongly significant interaction was detected. Results: We included a total of 1,373 ICH and 4,953 IS patients. ICH patients were younger than IS patients (mean age 61 vs. 68 years, p < 0.001), but there was no significant difference in gender (males 62 vs. 59%, p = 0.064). A logistic regression model adjusted for age, gender, and other major risk factors showed that both hypertension (OR 2.23, 95% CI 1.74-2.87) and alcohol intake (OR 1.44, 95% CI 1.16-1.77) had significantly stronger associations with ICH than IS, whereas diabetes, atrial fibrillation, ischemic heart disease, hyperlipidemia, smoking, and transient ischemic attack were less associated with ICH than IS. In subgroup analyses, the association of hypertension with ICH vs. IS was more marked in younger patients. Conclusion: Hypertension and alcohol intake are more strongly associated with ICH than IS in Chinese stroke patients, especially in younger patients.


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