Abstract 12946: Higher Burden of Atrial Fibrillation is Independently Associated With Lower Cognitive Function: The Atherosclerosis Risk in Communities (ARIC) Study

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Lin Y Chen ◽  
Sunil K Agarwal ◽  
Faye L Lopez ◽  
Rebecca F Gottesman ◽  
Laura R Loehr ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Ischemic Stroke ◽  
Cognitive Function ◽  
Heart Rhythm ◽  
Cognitive Test ◽  
Cognitive Tests ◽  
Recording Device ◽  
Cross Sectional ◽  
Increased Risk ◽  
Aric Study

Background: Atrial fibrillation (AF) is associated with greater cognitive decline and increased risk of dementia. However, it is unknown whether AF burden (% of time a person is in AF) is associated with cognition. We aimed to assess the cross-sectional association of AF burden with cognitive test scores in the ARIC study, a community-based prospective cohort study in the USA. Methods: We included 325 (mean age, 76.9 ± 5.2 years; 52.9% female) participants who underwent cognitive tests (Table) and ≥2 days of heart rhythm recording using the Zio ® Patch (a non-invasive, leadless, 2-week continuous ECG recording device by iRhythm Techonologies, Inc.) in July 2013-March 2014. We used multivariable linear regression to assess the association of AF burden (dichotomized at the median) with standardized z-scores of cognitive tests. Results: The mean wear and analysis time of the Zio ® Patch were 13.1 ± 2.1 and 12.7 ± 2.3 days, respectively. Of 325 participants, 13 (4.0%) had a prior ischemic stroke. There were 26 (8%) participants with AF recorded (median AF burden among participants with AF, 51%), of whom 4 (15.4%) had a prior ischemic stroke. Compared with absence of AF, higher AF burden was independently associated with lower MMSE, DWR, and AN scores, but not DSS and CTP. Conclusions: Higher burden of AF is independently associated with lower cognitive function, specifically memory and verbal function. This association needs to be confirmed prospectively and further research is needed to elucidate its mechanism.

scholarly journals Associations between cardiovascular risk factors, stroke severity, and post-stroke cognition: a moderated mediation analysis

2021 ◽  
Author(s):  
Jianian Hua ◽  
YIxiu Zhou ◽  
Licong Chen ◽  
Shanshan Diao ◽  
Qi Fang
Keyword(s):  
Risk Factors ◽  
Atrial Fibrillation ◽  
Cardiovascular Risk ◽  
Cognitive Function ◽  
Cardiovascular Risk Factors ◽  
Structural Equation ◽  
Moderated Mediation ◽  
Cognitive Test ◽  
Stroke Severity ◽  
Cross Sectional

Introduction: Cognitive impairment may affect one third of the stroke survivors. Cardiovascular risk factors have been described to be risk factors for lower cognition after stroke. However, most previous studies only used multivariate regression models to learn the association. The aim of our study was to investigate whether the effect of cardiovascular risk factors on cognition after stroke was mediated by stroke severity, the estimated effect of direct and indirect pathways, and the moderated association. Method: In this incident cross-sectional study, 300 stroke patients received cognitive test within seven days after stroke. Cognitive tested was performed by the Chinese version of Mini-Mental State Examination (MMSE). A second stage dual moderated mediation model was used the select moderation variables. Finally, we constructed a structural equation model to test the indirect effects of cardiovascular and demographic factors on cognition stroke severity, the direct effects of predictors on cognition, and the moderated effects of hypertension. Results: Age (estimate, -0.114; 95% bias-corrected CI, -0.205, -0.032; P<0.001), female (estimate, -2.196; 95% bias-corrected CI, -4.359, -0.204; P=0.009), lower education (estimate, -0.893; 95% bias-corrected CI, -1.662, --0.160; P<0.001), stroke severity (estimate, -1.531; 95% bias-corrected CI, -3.015, -0.095), hypertension (estimate, -2.242; 95% bias-corrected CI, -4.436, -0.242; P=0.003) and atrial fibrillation (estimate, -4.930; 95% bias-corrected CI, -12.864, -0.126; P=0.048) were directly associated with lower cognitive function after stroke. We found no evidence that cardiovascular risk factors indirectly correlated cognitive function through stroke severity. The combination of hypertension could alleviate the negative effect of atrial fibrillation on cognition (estimate, -3.928; 95% bias-corrected CI, -7.954, 0.029; P=0.009). Conclusions: We explored the complex relationship between cardiovascular risk factors, stroke severity, and cognitive function after stroke. Using our method, researchers using other dataset could repeat the analysis and achieve a better understanding of the relationship. Future researchers are needed to find whether the moderated associations were casual or modifiable.

Association of Circulating Cholesterol Level with Cognitive Function and Mild Cognitive Impairment in the Elderly: A Community-based Population Study

2020 ◽  
Vol 17 (6) ◽  
pp. 556-565
Author(s):  
Yujie Guo ◽  
Pengfei Li ◽  
Xiaojun Ma ◽  
Xiaochen Huang ◽  
Zhuoheng Liu ◽  
...  
Keyword(s):  
Cognitive Impairment ◽  
Mild Cognitive Impairment ◽  
Cognitive Function ◽  
Cholesterol Level ◽  
Density Lipoprotein ◽  
Lipoprotein Cholesterol ◽  
Cross Sectional ◽  
Increased Risk ◽  
Aging Adults ◽  
Female Subjects

Background: The present study was designed to examine the association of circulating cholesterol with cognitive function in non-demented community aging adults. Methods: This was a cross-sectional study including 1754 Chinese adults aged 55-80 years. The association between serum cholesterol levels and cognitive function was examined. Participants were categorized into four groups according to the quartile of circulating TC (total cholesterol), High Density Lipoprotein Cholesterol (HDL-c), Low Density Lipoprotein Cholesterol (LDL-c) levels and HDLc/ LDL-c ratio. The difference in cognitive performance among the groups was compared. Logistic regression model was used to determine the association of circulating cholesterol level with the risk of Mild Cognitive Impairment (MCI). Results: Mild increase of serum LDL-c level correlated with better visual and executive, language, memory and delayed recall abilities. Higher circulating TC and HDL-c levels were found to be associated with poorer cognitive function, especially in aging female subjects. Higher circulating TC, HDL-c and HDL/LDL ratio indicated an increased risk of MCI, especially in female subjects. Conclusion: Slight increase in circulating LDL-c level might benefit cognitive function in aging adults. However, higher circulating TC and HDL-c levels might indicate a decline of cognitive function, especially in aging female subjects.

scholarly journals Serum sodium in relation to various domains of cognitive function in the elderly US population

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Sohyae Lee ◽  
Jin-young Min ◽  
Beom Kim ◽  
Sang-Won Ha ◽  
Jeohng Ho Han ◽  
...  
Keyword(s):  
Executive Function ◽  
Cognitive Function ◽  
Serum Sodium ◽  
Verbal Memory ◽  
The Elderly ◽  
Cognitive Change ◽  
Cognitive Test ◽  
P Value ◽  
Digit Symbol Substitution Test ◽  
Cross Sectional

Abstract Background Recent evidence suggests that sodium imbalances may be associated with cognitive impairment; however, the association between specific domains of cognition remains unclear. This study examines the association between serum sodium levels and immediate and delayed verbal memory as measured by the CERAD Word Learning Test (CERAD WLT), executive function as measured by the Animal Fluency test (AFT), and sustained attention, working memory, and processing speed as measured by the Digit Symbol Substitution test (DSST) in the elderly population of the US aged 60 and older who participated in the 2011–2014 National Health and Nutrition Examination Surveys (n = 2,541). Methods Cognitive function tests were performed by trained interviewers and sodium levels were measured using indirect ion selective electrode methodology. Results After adjusting for all covariates, quintiles of CERAD WLT scores showed significant positive associations with log-transformed sodium levels (Immediate recall (IR) β = 4.25 (SE = 1.83, p-value 0.027); Delayed recall (DR) β = 6.54 (SE = 1.82, p-value 0.001)). Compared to normal sodium levels, hyponatremia was significantly associated with lower CERAD WLT-IR (β = -0.34, SE = 0.15, p-value 0.035) and CERAD WLT-DR scores (β -0.48, SE = 0.10, p-value < 0.001) and showed borderline significance with AFT scores (β = = -0.38, SE = 0.19, p-value 0.052). Hypernatremia did not show any significant relationships with cognitive test scores, compared to normal sodium levels. Conclusions Our cross-sectional study showed that lower sodium levels were associated with cognitive change, especially regarding memory and executive function.

Abstract WP226: Short Lasting Runs (<30 sec) of Atrial Fibrillation are More Commonly Observed in Ischemic Stroke Patients in Comparison to Controls

Stroke ◽  
2016 ◽  
Vol 47 (suppl_1) ◽  
Author(s):  
Ethem Murat Arsava ◽  
Ezgi Yetim ◽  
Ugur Canpolat ◽  
Necla Ozer ◽  
Kudret Aytemir ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Ischemic Stroke ◽  
Multivariate Analyses ◽  
Holter Monitoring ◽  
Female Gender ◽  
Prior History ◽  
Consecutive Series ◽  
Stroke Patients ◽  
Cross Sectional ◽  
History Of

Background: The role of short-lasting (<30 sec) runs of atrial fibrillation (AF) in ischemic stroke pathophysiology is currently unknown. Although these non-sustained attacks are considered as a risk factor for future development of longer lasting, classical AF episodes, prior research has highlighted that associated clinical stroke features are not entirely similar between these two types of arrhythmias. In this study we determined the prevalence of short-lasting AF in stroke-free controls and compared it to a consecutive series of ischemic stroke patients. Methods: A total 235 controls, without any prior history stroke or AF, were evaluated with ECG and 24-hour Holter monitoring for the presence of <30-sec or ≥30-sec lasting AF episodes. The results were compared to a consecutive series of ischemic stroke patients without prior history of AF (n=456). Univariate and multivariate analyses were performed to determine demographic and cardiovascular factors related to <30-sec lasting AF and its association with ischemic stroke. Results: Expectedly, the frequency of newly diagnosed ≥30-sec lasting AF, detected either on ECG or Holter monitoring, was significantly higher in patients with ischemic stroke (18% vs. 2%; p<0.01). Non-sustained AF was positively related to old age (p<0.01), female gender (p=0.01) and hypertension (p<0.01) in univariate analyses. In multivariate analyses, after adjustment for demographic and cardiovascular risk factors, presence of non-sustained AF was significantly higher among both cryptogenic (OR 1.78; 95% CI 1.02-3.10) and non-cryptogenic (OR 1.84; 95% CI 1.15-2.94) stroke patients with respect to controls. Conclusion: Our study shows a higher prevalence of non-sustained AF episodes in ischemic stroke patients in comparison to controls. Whether this cross-sectional association translates into causality in terms of stroke pathophysiology will be the subject of future studies.

Abstract 12385: Past Alcohol Consumption and Incident Atrial Fibrillation

Circulation ◽  
2015 ◽  
Vol 132 (suppl_3) ◽  
Author(s):  
Shalini Dixit ◽  
Alvaro Alonso ◽  
Elsayed Z Soliman ◽  
Lin Y Chen ◽  
Gregory M Marcus
Keyword(s):  
Atrial Fibrillation ◽  
Alcohol Consumption ◽  
Alcohol Use ◽  
Population Based ◽  
Self Report ◽  
Atherosclerosis Risk In Communities ◽  
Increased Risk ◽  
Before And After ◽  
Dietary Intake Assessment ◽  
Aric Study

Introduction: Although current alcohol consumption appears to be a risk factor for incident atrial fibrillation (AF), limitations related to self-reported alcohol use and confounding in observational studies limit the certainty of conclusions regarding causality. Whether cessation of alcohol consumption can protect against incident AF remains unknown. Methods: We examined all participants in the Atherosclerosis Risk in Communities (ARIC) study, a population-based cohort of 15,792 men and women aged 45-65, without prevalent AF. Past alcohol consumption was assessed via self-report during the baseline dietary intake assessment. Cases of incident AF were ascertained via study ECGs, hospital discharge ICD-9 codes, and death certificates. Results: Among 15,262 participants with complete survey data, 2,898 (19.0%) were former drinkers. During an average follow-up of 17.4 years, there were 380 cases of incident AF in former consumers. Both before and after adjustment for potential confounders, a longer duration of alcohol abstinence was associated with a lower risk of developing AF; previously consuming alcohol for a longer duration and consuming a greater quantity of alcohol were each associated with a higher risk of developing AF (Table). Conclusions: Among former drinkers, the number of years of drinking and the amount of alcohol consumed may each confer an increased risk of AF. Given that a longer duration of abstinence was associated with a decreased risk of AF, modification of alcohol use could potentially play a role in AF prevention.

Abstract 79: Troponin T, NT-proBNP, and Incidence of Stroke: The Atherosclerosis Risk in Communities (ARIC) Study

Stroke ◽  
2013 ◽  
Vol 44 (suppl_1) ◽  
Author(s):  
Aaron R Folsom ◽  
Vijay Nambi ◽  
Elizabeth J Bell ◽  
Oludamilola W Oluleye ◽  
Rebecca F Gottesman ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
General Population ◽  
Troponin T ◽  
High Sensitivity ◽  
Hazard Ratio ◽  
Cardioembolic Stroke ◽  
Atherosclerosis Risk In Communities ◽  
Increased Risk ◽  
Atherosclerosis Risk ◽  
Aric Study

Increased levels of plasma troponins and natriuretic peptides in the general population are associated with increased future risk of cardiovascular disease, but only limited information exists on these biomarkers and stroke occurrence. In a prospective epidemiological study, the Atherosclerosis Risk in Communities (ARIC) Study, we tested the hypothesis that high-sensitivity troponin T (TnT) and N-terminal pro B-type natriuretic peptide (NT-proBNP) are associated positively with incidence of stroke. We measured plasma high-sensitivity TnT and NT-proBNP in 10,902 men or women initially free of stroke and followed them for a mean of 11.3 years for stroke occurrence (n=507). Analyses were performed using proportional hazards modeling. Both biomarkers were associated positively with total stroke, nonlacunar ischemic, and especially, cardioembolic stroke, but not with lacunar or hemorrhagic stroke. After adjustment for other stroke risk factors, the hazard ratio (95% CI) per one SD greater increment of natural log-transformed TnT was 1.23 (1.13, 1.35) for total stroke, 1.27 (1.15, 1.40) for total ischemic stroke, and 1.36 (1.14, 1.62) for cardioembolic stroke. Likewise, the hazard ratio per one SD greater natural log-transformed NT-proBNP, was 1.37 (1.26, 1.49) for total stroke, 1.39 (1.27, 1.53) for total ischemic stroke, and 1.95 (1.67, 2.28) for cardioembolic stroke. The hazard ratios for jointly high values of TnT (≥0.013 ug/L) and NT-proBNP (≥155.2 pg/mL), versus neither biomarker high, were 2.70 (1.92, 3.79) for total stroke and 6.26 (3.40, 11.5) for cardioembolic stroke, and somewhat stronger for NT-proBNP than TnT. Strikingly, approximately 58% of cardioembolic strokes occurred in the highest quintile of pre-stroke NT-proBNP (versus 3% occurring in the lowest quintile), and 32% of cardioembolic strokes occurred in participants who had both NT-proBNP in the highest quintile and were known by ARIC to have atrial fibrillation sometime before their cardioembolic stroke occurrence. In conclusion, in the general population, elevated plasma TnT and NT-proBNP concentrations are associated with increased risk of cardioembolic and other nonlacunar ischemic strokes.

scholarly journals Acute cardiovascular events and all-cause mortality in patients with hyperthyroidism: a population-based cohort study

2017 ◽  
Vol 176 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Olaf M Dekkers ◽  
Erzsébet Horváth-Puhó ◽  
Suzanne C Cannegieter ◽  
Jan P Vandenbroucke ◽  
Henrik Toft Sørensen ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Cohort Study ◽  
Ischemic Stroke ◽  
Cardiovascular Events ◽  
Population Based ◽  
Arterial Embolism ◽  
Registration System ◽  
Increased Risk ◽  
All Cause Mortality

Objective Several studies have shown an increased risk for cardiovascular disease (CVD) in hyperthyroidism, but most studies have been too small to address the effect of hyperthyroidism on individual cardiovascular endpoints. Our main aim was to assess the association among hyperthyroidism, acute cardiovascular events and mortality. Design It is a nationwide population-based cohort study. Data were obtained from the Danish Civil Registration System and the Danish National Patient Registry, which covers all Danish hospitals. We compared the rate of all-cause mortality as well as venous thromboembolism (VTE), acute myocardial infarction (AMI), ischemic and non-ischemic stroke, arterial embolism, atrial fibrillation (AF) and percutaneous coronary intervention (PCI) in the two cohorts. Hazard ratios (HR) with 95% confidence intervals (95% CI) were estimated. Results The study included 85 856 hyperthyroid patients and 847 057 matched population-based controls. Mean follow-up time was 9.2 years. The HR for mortality was highest in the first 3 months after diagnosis of hyperthyroidism: 4.62, 95% CI: 4.40–4.85, and remained elevated during long-term follow-up (>3 years) (HR: 1.35, 95% CI: 1.33–1.37). The risk for all examined cardiovascular events was increased, with the highest risk in the first 3 months after hyperthyroidism diagnosis. The 3-month post-diagnosis risk was highest for atrial fibrillation (HR: 7.32, 95% CI: 6.58–8.14) and arterial embolism (HR: 6.08, 95% CI: 4.30–8.61), but the risks of VTE, AMI, ischemic and non-ischemic stroke and PCI were increased also 2- to 3-fold. Conclusions We found an increased risk for all-cause mortality and acute cardiovascular events in patients with hyperthyroidism.

scholarly journals HUBUNGAN ANTARA PERUBAHAN KADAR HS-CRP DENGAN FUNGSI KOGNITIF PADA STROKE ISKEMIK

2018 ◽  
Vol 35 (2) ◽  
Author(s):  
Betsi Sumanti ◽  
Hexanto Hexanto ◽  
Widiastuti Widiastuti
Keyword(s):  
Ischemic Stroke ◽  
Cognitive Function ◽  
Acute Ischemic Stroke ◽  
Inflammatory Marker ◽  
Cross Sectional Study ◽  
Stroke Patients ◽  
Cross Sectional ◽  
Reactive Protein ◽  
Hs Crp ◽  
Relationship Of

   ASSOCIATION BETWEEN ALTERED HS-CRP LEVELS AND  COGNITIVE FUNCTION OF ISCHEMIC STROKE PATIENTSABSTRACTIntroduction: The incidence of cognitive impairment in acute ischemic stroke patients is increasing. The mechanism of the inflammatory effect, such as  elevated hs-CRP level, a  non-specific inflammatory marker  sensitive to chronic inflammation due to hypoperfusion as well other vascular risk, is thought to have an effect on cognitive function.Aims: To determine the relationship of cognitive function changes in acute phase of ischemic stroke with hs-CRP level changes on day 3 and day 7 after onset.Methods: This was a cross sectional study of 31 first-timer ischemic stroke patients who met inclusion and exclusion criteria. The level of hs-CRP was checked on the 3rd day and 7th day after onset, while MoCA-Ina was assessed on the 7th day after onset. Cognitive disturbance was considered if MoCA <26. Analyses was done using SPSS 2.0Results: The average onset of day 3 Hs-CRP concentration was 0.66 (0.12-16.67)mg/dl and the onset of day 7 was 5.455 (0.14-17.34)mg/dl. The mean change of hs-CRP level between 3 day and 7 day after onset was -0,16 (-3.32-4.95). There was a significant correlation between elevated hs-CRP levels on day 3 and day 7 after onset with cognitive function of acute ischemic stroke patients.Discussion: There was a significant correlation between elevated hs-CRP levels on day 3 and day 7 after onset with cognitive function of acute ischemic stroke patients.Keyword: Acute ischemic stroke, hs-CRP, MoCA-Ina scoresABSTRAKPendahuluan: Insidens penurunan fungsi kognitif pada pasien stroke iskemik akut semakin meningkat. Hal ini diduga dipengaruhi oleh mekanisme efek inflamasi, meliputi peningkatan kadar high sensitive-C reactive protein (hs-CRP), salah satu penanda inflamasi non-spesifik yang sangat sensitif pada inflamasi kronis, akibat hipoperfusi maupun karena risiko vaskuler lainnya.Tujuan: Mengetahui hubungan perubahan fungsi kognitif pasien stroke iskemik fase akut dengan perubahan kadar hs-CRP hari ke-3 dan hari ke-7 setelah awitan.Metode: Studi potong lintang terhadap penderita stroke iskemik pertama kali yang memenuhi kriteria inklusi dan eksklusi. Dilakukan pemeriksaan kadar hs-CRP hari ke-3 dan hari ke-7 setelah awitan dan MoCA-Ina pada hari ke-7 setelah awitan. Fungsi kognitif dinyatakan terganggu jika MoCA-Ina <26. Analisis data menggunakan program SPSS 22.0.Hasil: Didapatkan rerata kadar Hs-CRP hari ke-3 setelah awitan adalah 0,66 (0,12-16,67)mg/dl dan hari ke-7 setelah awitan adalah 5,455 (0,14-17,34)mg/dl. Dengan rerata perubahan kadar hs-CRP awitan hari ke-3 dan awitan hari ke-7 adalah -0,16 (-3,32-4,95). Didapatkan hubungan yang bermakna antara perubahan kadar hs-CRP hari ke-3 setelah awitan dan hari ke-7 setelah awitan dengan fungsi kognitif pasien stroke iskemik akut.Kesimpulan: Didapatkan hubungan yang bermakna antara peningkatan kadar hs-CRP pada hari ke-7 dan kadar hari ke-3 dengan fungsi kognitif pasien stroke iskemik akut.Kata kunci: hs-CRP, MoCA-Ina, stroke iskemik akut 

scholarly journals Analysis of Influencing Factors of Compliance with Non-Vitamin K Antagonist Oral Anticoagulant in Patients with Nonvalvular Atrial Fibrillation and Correlation with the Severity of Ischemic Stroke

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Li Zhu ◽  
Xiaodan Zhang ◽  
Jing Yang
Keyword(s):  
Atrial Fibrillation ◽  
Ischemic Stroke ◽  
Influencing Factors ◽  
Clinical Supervision ◽  
Vitamin K ◽  
Pearson Correlation ◽  
Anticoagulation Therapy ◽  
Vitamin K Antagonist ◽  
Nonvalvular Atrial Fibrillation ◽  
Increased Risk

Nonvalvular atrial fibrillation (NVAF) is associated with an increased risk of stroke and thrombus, and anticoagulant therapy is a key link in the prevention of stroke. At present, the anticoagulation rate of atrial fibrillation in China is low, and there are many factors affecting the adherence of patients with atrial fibrillation to anticoagulation. Non-vitamin K antagonist oral anticoagulants (NOACs) are anticoagulant with high application value due to their high safety and low risk of intracranial hemorrhage, stroke, and death. However, the compliance of NOACs is poor, and the current situation of anticoagulants in China is not optimistic. In this study, a total of 156 patients with NVAF who received NOAC anticoagulation therapy in our hospital from January 2018 to January 2019 were retrospectively analyzed. The results showed that education background, place of residence, number of complications, CHA2DS2-VASc score, and HAS-BLED score were independent influencing factors for NOACS compliance of NVAF patients. Also, the Pearson correlation analysis showed that there was a negative correlation (r = −0.465, P < 0.001 ) between NOAC compliance and severity of ischemic stroke in patients with NVAF. Therefore, clinical supervision and management of patients with NVAF after NOACs should be strengthened to improve the compliance of patients with NVAF after NOACs, reduce the damage of ischemic stroke, and improve their prognosis.

scholarly journals Do Silent Brain Infarctions Predict the Development of Dementia After First Ischemic Stroke?

2013 ◽  
Vol 1 (1) ◽  
pp. 66-69
Author(s):  
Ivan Barbov ◽  
Slavica Arsova ◽  
Arben Taravari ◽  
Vera Petrova
Keyword(s):  
Survival Analysis ◽  
Ischemic Stroke ◽  
Cognitive Function ◽  
Mental State ◽  
Total Sample ◽  
Ct Scans ◽  
Sample Population ◽  
Brain Infarcts ◽  
Increased Risk ◽  
Acute Event

Background: Silent brain infarctions (SBI) are common findings in advanced age, but their relationship to dementia is still uncertain.Aim: The present study was designed to evaluate whether SBI predict the development of dementia after first clinical ischemic stroke.Methods: We blindly studied admission CT scans of 102 consecutive nondemented patients presenting with ischemic stroke that clinically was their first stroke episode. SBI were defined as CT evidence of infarcts not compatible with the acute event. The patients were subsequently followed for their mental state for 2 years. Survival analysis, wherein onset of dementia was the end point, was performed on the total sample population and conducted separately on those with and without SBI at admission.Results: Dementia developed in 33 patients (32.3%), including 17 of the 37 (45.9%) with SBI and 16 of the 65 (24.6%) without SBI. Thus, dementia was strong related to SBI.Conclusion: Elderly people with silent brain infarcts and stroke have an increased risk of dementia and a steeper decline in cognitive function than those without such lesions.

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