scholarly journals Stroke Lateralization in Large Hemisphere Infarctions: Characteristics, Stroke-Related Complications, and Outcomes

2021 ◽  
Vol 12 ◽  
Author(s):  
Jie Li ◽  
Ping Zhang ◽  
Yingying Liu ◽  
Wanli Chen ◽  
Xingyang Yi ◽  
...  

Objectives: To assess the hemispheric differences in characteristics, stroke-related complications, and outcomes of patients with large hemisphere infarctions (LHI).Methods: We enrolled consecutive patients admitted within 24 h after the diagnosis of LHI (defined as an ischemic stroke involving more than 50% of the territory of the middle cerebral artery in computed tomography and/or magnetic resonance imaging). Univariate and multivariate analysis were performed to explore the association between lateralization and stroke-related complications and clinical outcomes.Results: A total of 314 patients with LHI were enrolled, with 171 (54.5%) having right hemispheric involvement. Right-sided patients with LHI had lower baseline National Institutes of Health Stroke Scale (NIHSS) score (18 vs. 22, p < 0.001), higher frequency of atrial fibrillation (69.0 vs. 52.4%, p = 0.003), and higher proportion of cardio-embolism (73.1 vs. 56.6%, p = 0.013) than the left. Right-sided LHI had higher incidence rates of malignant brain edema (MBE) (48.5 vs. 30.8%, p = 0.001) and a composite of cardiovascular events (29.8 vs. 17.5%, p = 0.011) during hospitalization. The incidence rate of 1-month mortality (34.5 vs. 23.8%, p = 0.036) was higher in right-sided patients with LHI, but there were no hemispheric differences in the incidence rates of 3-month mortality and unfavorable outcome (both p > 0.05). Multivariate analyses suggested right hemisphere involvement was independently associated with increased risk of MBE (adjusted OR 2.37, 95% CI 1.26–4.43, p = 0.007) and composite of cardiovascular events (adjusted OR 2.04, 95% CI 1.12–3.72, p = 0.020). However, it was not independently associated with 1-month death, 3-month mortality, and 3-month unfavorable outcome (all p > 0.05).Conclusions: Right-sided patients with LHI had higher frequency of atrial fibrillation and cardio-embolism than the left-sided patients. Right hemisphere involvement was independently associated with increased risk of MBE and composite of cardiovascular events during hospitalization, whereas stroke lateralization was not an independent predictor of mortality and unfavorable outcome in patients with LHI.

2015 ◽  
Vol 113 (01) ◽  
pp. 185-192 ◽  
Author(s):  
Chun-Cheng Wang ◽  
Cheng-Li Lin ◽  
Guei-Jane Wang ◽  
Chiz-Tzung Chang ◽  
Fung-Chang Sung ◽  
...  

SummaryWhether atrial fibrillation (AF) is associated with an increased risk of venous thromboembolism (VTE) remains controversial. From Longitudinal Health Insurance Database 2000 (LHID2000), we identified 11,458 patients newly diagnosed with AF. The comparison group comprised 45,637 patients without AF. Both cohorts were followed up to measure the incidence of deep-vein thrombosis (DVT) and pulmonary embolism (PE). Univariable and multivariable competing-risks regression model and Kaplan-Meier analyses with the use of Aelon-Johansen estimator were used to measure the differences of cumulative incidences of DVT and PE, respectively. The overall incidence rates (per 1,000 person-years) of DVT and PE between the AF group and non-AF groups were 2.69 vs 1.12 (crude hazard ratio [HR] = 1.92; 95 % confidence interval [CI] = 1.54-2.39), 1.55 vs 0.46 (crude HR = 2.68; 95 % CI = 1.97-3.64), respectively. The baseline demographics indicated that the members of the AF group demonstrated a significantly older age and higher proportions of comorbidities than non-AF group. After adjusting for age, sex, and comorbidities, the risks of DVT and PE remained significantly elevated in the AF group compared with the non-AF group (adjusted HR = 1.74; 95 %CI = 1.36-2.24, adjusted HR = 2.18; 95 %CI = 1.51-3.15, respectively). The Kaplan-Meier curve with the use of Aelon-Johansen estimator indicated that the cumulative incidences of DVT and PE were both more significantly elevated in the AF group than in the non-AF group after a long-term follow-up period (p<0.01). In conclusion, the presence of AF is associated with increased risk of VTE after a long-term follow-up period.


Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Daniele Pastori ◽  
Pasquale Pignatelli ◽  
Roberto Cangemi ◽  
William Hiatt ◽  
Alessio Farcomeni ◽  
...  

Introduction: Non-Valvular Atrial Fibrillation (AF) patients show high residual cardiovascular risk despite oral anticoagulants. Urinary 11-dehydro-thromboxane B2 (TxB2) is associated with an increased risk of cardiovascular events, but its predictive value in anticoagulated AF patients is unknown. Hypothesis: Aim of this was to assess whether urinary 11-dehydro-TxB2 is a predictor of cardiovascular events in anticoagulated patients with AF. Methods: Prospective single-center cohort study, including 864 consecutive AF patients. Mean time of follow-up was 30.0 months yielding 2062 person-years of observation. Urinary 11-dehydro-TxB2 was measured at baseline. The primary end-point was the composite of myocardial infarction, ischemic stroke, cardiac revascularization, cardiovascular death and deaths from any cause. Results: Cardiovascular events occurred in 98 (11.3%), whilst 81 patients died (9.4%), including 55 from cardiovascular and 26 from non-cardiovascular causes. At baseline, urinary 11-dehydro-TxB2 levels were higher in patients who experienced a cardiovascular event (p<0.001). An increased rate of cardiovascular events, cardiovascular death and all-cause death was observed across tertiles of 11-dehydro-TxB2 (p<0.001). On Cox proportional hazards analysis, CHA2DS2-VASc score, second and third tertile of 11-dehydro-TxB2, compared to the first tertile, were significant predictors of vascular and non-vascular events. On a logistic regression analysis, 11-dehydro-TxB2 levels progressively increase with increasing CHA2DS2-VASc scores. Conclusions: Urinary 11-dehydro-TxB2 predicts residual risk of cardiovascular events in anticoagulated atrial fibrillation patients. Urinary 11-dehydro-TxB2 progressively increases with increasing CHA2DS2-VASc score suggesting that anticoagulated patients with high CHA2DS2-VASc score may need additional antithrombotic strategies.


2017 ◽  
Vol 176 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Olaf M Dekkers ◽  
Erzsébet Horváth-Puhó ◽  
Suzanne C Cannegieter ◽  
Jan P Vandenbroucke ◽  
Henrik Toft Sørensen ◽  
...  

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.


Stroke ◽  
2020 ◽  
Vol 51 (5) ◽  
pp. 1364-1371
Author(s):  
Charlotte Andreasen ◽  
Gunnar H. Gislason ◽  
Lars Køber ◽  
Jawdat Abdulla ◽  
Andreas Martinsson ◽  
...  

Background and Purpose— Aortic valve stenosis may lead to atrial and ventricular remodeling, predisposes to atrial fibrillation, and may also be an independent risk factor of ischemic stroke. However, information on stroke rates among persons with aortic valve stenosis are sparse. We aimed to determine the incidence rates and relative risks of ischemic stroke in individuals with diagnosed aortic valve stenosis compared with age- and sex-matched controls. Methods— All patients with incident aortic valve stenosis aged >18 years (n=79 310) and age- and sex-matched controls were identified using the Danish nationwide registries (1997–2017). Incidence rates per 1000 person-years (PY) and multivariable adjusted hazard ratios with 95% CIs were reported. Results— In total, 873 373 individuals (median age 77 years, 51.5% men, 9.1% with aortic valve stenosis) were included. Ischemic stroke occurred in 70 205 (8.0%) individuals during 4 880 862 PY of follow-up. Incidence rates of ischemic stroke were 13.3/1000 PY among the controls compared with 30.4/1000 PY in patients with aortic valve stenosis, corresponding to a hazard ratio of 1.31 (95% CI, 1.28–1.34). In all age-groups, the incidence rates and relative risks were significantly increased in patients with aortic valve stenosis compared with controls, but the relative risk was greater for younger individuals (eg, age group, 18–45 years: hazard ratio, 5.94 [95% CI, 4.10–8.36]). In patients with aortic valve stenosis above 65 years of age, the risk of ischemic stroke was markedly lower after aortic valve replacement (30.3 versus 19.6/1000 PY before and after valve replacement). Among people with atrial fibrillation the incidence rate of ischemic stroke was 1.5 times higher when aortic valve stenosis was present (33.0/1000 PY versus 49.9/1000 PY). Conclusions— People with aortic valve stenosis have a significantly increased risk of ischemic stroke compared with age- and sex-matched controls. Future studies are warranted to explore whether antithrombotic therapy may be beneficial in some individuals.


2020 ◽  
Vol 13 (9) ◽  
Author(s):  
Daniele Pastori ◽  
Danilo Menichelli ◽  
Gregory Y.H. Lip ◽  
Angela Sciacqua ◽  
Francesco Violi ◽  
...  

Background: To investigate the association between family history of atrial fibrillation (AF) with cardiovascular events (CVEs), major adverse cardiac events (MACE), and cardiovascular mortality. Methods: Multicenter prospective observational cohort study including 1722 nonvalvular AF patients from February 2008 to August 2019 in Italy. Family history of AF was defined as the presence of AF in a first-degree relative: mother, father, sibling, or children. Primary outcome was a composite of CVEs including fatal/nonfatal ischemic stroke and myocardial infarction, and cardiovascular death. Second, we analyzed the association with major adverse cardiac event. Results: Mean age was 74.6±9.4 years; 44% of women. Family history of AF was detected in 368 (21.4%) patients, and 3.5% had ≥2 relatives affected by AF. Age of AF onset progressively decreased from patients without family history of AF, compared with those with single and multiple first-degree affected relatives ( P <0.001). During a mean follow-up of 23.7 months (4606 patients/y) 145 CVEs (3.15%/y), 98 major adverse cardiac event (2.13%/y), and 57 cardiovascular deaths (0.97%/y) occurred. After adjustment for cardiovascular risk factors, family history of AF was associated with a higher risk of CVEs (hazard ratio, 1.524 [95% CI, 1.021–2.274], P =0.039), major adverse cardiac event (hazard ratio, 1.917 [95% CI, 1.207–3.045], P =0.006), and cardiovascular mortality (hazard ratio, 2.008 [95% CI, 1.047–3.851], P =0.036). Subgroup analysis showed that this association was modified by age, sex, and prior ischemic heart disease. Conclusions: In a cohort of elderly patients with a high atherosclerotic burden, family history of AF is evident in >20% of patients and was associated with an increased risk for CVEs and mortality. Registration: URL: https://www.clinicaltrials.gov ; Unique identifier: NCT01882114.


2012 ◽  
Vol 33 (22) ◽  
pp. 2821-2830 ◽  
Author(s):  
Stefan H Hohnloser ◽  
Ziad Hijazi ◽  
Laine Thomas ◽  
John H Alexander ◽  
John Amerena ◽  
...  

AbstractAimsAtrial fibrillation (AF) is common among patients with impaired renal function. Apixaban, a novel oral anticoagulant with partial renal excretion, was compared with warfarin and reduced the rate stroke, death and bleeding in the ARISTOTLE trial. We evaluated these outcomes in relation to renal function.Methods and resultsBaseline glomerular filtration rate (GFR) was estimated using the Cockcroft–Gault and Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equations as well as cystatin C measurements. According to baseline Cockcroft–Gault, there were 7518 patients (42%) with an estimated GFR (eGFR) of >80 mL/min, 7587 (42%) between >50 and 80 mL/min, and 3017 (15%) with an eGFR of ≤50 mL/min. The rate of cardiovascular events and bleeding was higher at impaired renal function (≤80 mL/min). Apixaban was more effective than warfarin in preventing stroke or systemic embolism and reducing mortality irrespective of renal function. These results were consistent, regardless of methods for GFR estimation. Apixaban was associated with less major bleeding events across all ranges of eGFRs. The relative risk reduction in major bleeding was greater in patients with an eGFR of ≤50 mL/min using Cockcroft–Gault {hazard ratio (HR) 0.50 [95% confidence interval (CI) 0.38–0.66], interaction P = 0.005} or CKD-EPI equations [HR 0.48 (95% CI 0.37–0.64), interaction P = 0.003].ConclusionIn patients with AF, renal impairment was associated with increased risk of cardiovascular events and bleeding. When compared with warfarin, apixaban treatment reduced the rate of stroke, death, and major bleeding, regardless of renal function. Patients with impaired renal function seemed to have the greatest reduction in major bleeding with apixaban.


Author(s):  
Shih-Ting Huang ◽  
Tung-Min Yu ◽  
Tai-Yuan Ke ◽  
Ming-Ju Wu ◽  
Ya-Wen Chuang ◽  
...  

Objective: This study explored the impact of syncope and collapse (SC) on cardiovascular events and mortality in patients undergoing dialysis. Methods: Patients undergoing dialysis with SC (n = 3876) were selected as the study cohort and those without SC who were propensity score-matched at a 1:1 ratio were included as controls. Major adverse cardiovascular events (MACEs), including acute coronary syndrome (ACS), arrhythmia or cardiac arrest, stroke, and overall mortality, were evaluated and compared in both cohorts. Results: The mean follow-up periods until the occurrence of ACS, arrhythmia or cardiac arrest, stroke, and overall mortality in the SC cohort were 3.51 ± 2.90, 3.43 ± 2.93, 3.74 ± 2.97, and 3.76 ± 2.98 years, respectively. Compared with the patients without SC, those with SC had higher incidence rates of ACS (30.1 vs. 24.7 events/1000 people/year), arrhythmia or cardiac arrest (6.75 vs. 3.51 events/1000 people/year), and stroke (51.6 vs. 35.7 events/1000 people/year), with higher overall mortality (127.7 vs. 77.9 deaths/1000 people/year). The SC cohort also had higher risks for ACS, arrhythmia or cardiac arrest, stroke, and overall mortality (adjusted hazard ratios: 1.28 (95% confidence interval (CI) = 1.11–1.46), 2.05 (95% CI = 1.50–2.82), 1.48 (95% CI = 1.33–1.66), and 1.79 (95% CI = 1.67–1.92), respectively) than did the non-SC cohort. Conclusion: SC was significantly associated with cardiovascular events and overall mortality in the patients on dialysis. SC may serve as a prodrome for cardiovascular comorbidities, thereby assisting clinicians in identifying high-risk patients.


Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Sampada K Gandhi ◽  
Michael D Ezekowitz ◽  
James A Reiffel ◽  
Rania Boiron ◽  
Mattias Wieloch

Introduction: Dronedarone (DR), a P-gp and CYP 3A4 inhibitor may increase exposure and the risk of bleeding when combined with direct oral anticoagulants (DOACs). Objective: To examine the association between concomitant use of DR and the DOACs, apixaban (A), dabigatran (D), and rivaroxaban (R), and risk of bleeding compared to DOAC monotherapy in patients with atrial fibrillation (AF). Methods: A retrospective cohort study using a U.S. claims database, Truven Health MarketScan identified new users of A, D, and R in patients with AF ≥18 years from Jan 1, 2007 to Sep 30, 2017. Bleeding was defined as hospitalization or emergency room visit with a primary diagnosis of gastrointestinal (GI) bleeding, intracranial hemorrhage (ICH), or bleeding at other sites. Risk of overall and by type of bleeding was examined in concomitant users of DOAC and DR compared to patients using DOAC alone after adjusting for covariates of interest and applying propensity score (PS) trimming via Cox proportional hazards modeling. Results: Among concomitant users of DR and A (1,932), D (3,117), and R (2,395), crude incidence rates of bleeding per 1,000 person-years were 17.2, 37.8, 61.8, respectively versus 26.8, 31.3, and 44.9 in users of A (51,420), D (42,312), and R (57,300) alone. Incidence rates stratified by PS showed higher bleeding incidence in concomitant users of DR with D or R, but not with A. No increased bleeding risk was associated with use of DR and A vs A alone [Adjusted Hazard ratio (aHR): 0.69 (95% CI: 0.40, 1.17), p=0.16]. A modestly increased risk of GI bleeding but not overall bleeding was associated with combined use of DR and D vs D alone [aHR bleeding: 1.18 (95% CI: 0.89, 1.56), p=0.26; aHR GI bleeding: 1.40 (95% CI: 1.01, 1.93); p=0.04]. An increased risk of overall bleeding, driven by GI bleeding, was associated with combined use of DR and R vs R alone [aHR bleeding:1.31 (95% CI: 1.01, 1.69); p=0.04; aHR GI bleeding:1.39 (95% CI: 0.98, 1.95); p=0.06]. There was no increase in the risk of ICH associated with combined use of DR and any DOAC. Conclusions: Concomitant treatment with DR and A showed no increased risk of bleeding, but DR increased the risk of GI bleeding when given with D or R, and of overall bleeding only with R. Concomitant treatment with DR and any DOAC did not increase ICH risk.


BMJ Open ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. e042518
Author(s):  
Sílvia C Mendonça ◽  
Catherine L Saunders ◽  
Jenny Lund ◽  
Jonathan Mant ◽  
Duncan Edwards

ObjectivesAtrial fibrillation (AF) is a heart condition associated with a fivefold increased risk of stroke. The condition can be detected in primary care and treatment can greatly reduce the risk of stroke. In recent years, a number of policy initiatives have tried to improve diagnosis and treatment of AF, including local National Health Service schemes and the Quality and Outcomes Framework. We aimed to examine trends in the incidence of recorded AF in primary care records from English practices between 2004 and 2018.DesignLongitudinal cohort study.SettingEnglish primary care electronic health records linked to Index of Multiple Deprivation data.ParticipantsCohort of 3.5 million patients over 40 years old registered in general practices in England, contributing 22 million person-years of observation between 2004 and 2018.Primary and secondary outcome measuresIncident AF was identified through newly recorded AF codes in the patients’ records. Yearly incidence rates were stratified by gender, age group and a measure of deprivation.ResultsIncidence rates were stable before 2010 and then rose and peaked in 2015 at 5.07 (95% CI 4.94 to 5.20) cases per 1000 person-years. Incidence was higher in males (4.95 (95% CI 4.91 to 4.99) cases per 1000 person-years vs 4.12 (95% CI 4.08 to 4.16) in females) and rises markedly with age (0.58 (95% CI 0.56 to 0.59) cases per 1000 person-years in 40–54 years old vs 21.7 (95% CI 21.4 to 22.0) cases in over 85s). The increase in incidence over time was observed mainly in people over the age of 75, particularly men. There was no evidence that temporal trends in incidence were associated with deprivation.ConclusionsChanges in clinical practice and policy initiatives since 2004 have been associated with increased rates of diagnosis of AF up until 2015, but rates declined from 2015 to 2018.


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