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Sökning: WFRF:(Roe Matthew T.)

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  • Pagidipati, Neha J., et al. (författare)
  • An examination of the relationship between serum uric acid level, a clinical history of gout, and cardiovascular outcomes among patients with acute coronary syndrome
  • 2017
  • Ingår i: American Heart Journal. - : MOSBY-ELSEVIER. - 0002-8703 .- 1097-6744. ; 187, s. 53-61
  • Tidskriftsartikel (refereegranskat)abstract
    • Background Studies have suggested a relationship between higher baseline serum uric acid (sUA) levels and an elevated risk of subsequent ischemic cardiovascular outcomes among acute coronary syndrome (ACS) patients; this relationship may be modified by a clinical history of gout and has not been studied in large patient cohorts. We sought to understand the effect of sUA and gout on ACS outcomes. Methods Using PLATO and TRACER data on 27,959 ACS patients, we evaluated baseline sUA levels in relation to a composite of cardiovascular death, myocardial infarction (MI), or stroke. We assessed interaction terms to determine if a baseline clinical diagnosis of gout modified this putative relationship; 46% (n = 12,882) had sUA levels elevated >6.0 mg/dL. Results Patients with elevated levels were more often male with a history of prior MI, diabetes, and heart failure compared with those with sUA <6.0 mg/dL. The unadjusted risk of the composite endpoint increased with corresponding elevations in sUA levels (per 1 mg/dL increase) (HR = 1.23 [95% CI: 1.20-1.26]) above the statistical inflection point of 5.0 mg/dL. After adjustment, the association between sUA level and the composite outcome remained significant (HR = 1.07 [95% CI: 1.04-1.10]), and baseline gout did not modify this relationship. ' Conclusions In patients with ACS, increasing levels of sUA are associated with an elevated risk of cardiovascular events, regardless of a clinical diagnosis of gout. Further investigation is warranted to determine the mechanism behind this relationship and to delineate whether sUA is an appropriate therapeutic target to reduce cardiovascular risk.
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  • Sun, Michelle T., et al. (författare)
  • Meta-Analysis of Intraocular Bleeding With Dual Antiplatelet Therapy Using P2Y12 Inhibitors Prasugrel or Ticagrelor
  • 2020
  • Ingår i: American Journal of Cardiology. - : EXCERPTA MEDICA INC-ELSEVIER SCIENCE INC. - 0002-9149 .- 1879-1913. ; 125:8, s. 1280-1283
  • Forskningsöversikt (refereegranskat)abstract
    • Intraocular bleeding is a devastating clinical event due to its potentially blinding nature. It is not known if determine if dual antiplatelet therapy using aspirin and potent P2Y12 inhibitors increases this risk. We searched MEDLINE and ClinicalTrials.gov for randomized controlled trials that were phase III, randomly assigned patients to dual antiplatelet therapy with either aspirin and a potent P2Y12 inhibitor or aspirin and clopidogrel, had follow-up of 6 months, and at least 200 patients. Corresponding authors were contacted for intraocular bleeding data. Inverse-variance, weighted, fixed-effects meta-analysis was undertaken, with random-effects meta-analysis performed as a sensitivity analysis. Four trials enrolling 42,850 patients were included. The median follow-up ranged from 12 to 14 months. There was overall low risk of bias. Pooled analysis demonstrated no statistically significant increase in the risk of intraocular bleeding with dual antiplatelet therapy using potent P2Y12 inhibitors compared with clopidogrel (risk ratio 0.89, 95% confidence interval 0.58 to 136). There was no significant heterogeneity observed across trials (I-2 statistic 0%, p = 0.98). The use of random-effects meta-analysis did not change the effect estimate or confidence intervals, and the results appeared similar when stratified by potent P2Y12 inhibitor (p = 0.97). In conclusion, this collaborative meta-analysis of dual antiplatelet trials does not suggest that the risk of intraocular bleeding is increased with the use of potent P2Y12 inhibitors compared with clopidogrel. Our results suggest that these potent P2Y12 inhibitors may continue to be used cautiously where indicated as part of dual antiplatelet therapy, even in those at high risk of spontaneous intraocular bleeding. Crown Copyright (C) 2020 Published by Elsevier Inc. All rights reserved.
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  • Alfredsson, Joakim, et al. (författare)
  • Predicting the risk of bleeding during dual antiplatelet therapy after acute coronary syndromes
  • 2017
  • Ingår i: Heart. - : BMJ PUBLISHING GROUP. - 1355-6037 .- 1468-201X. ; 103:15, s. 1168-1176
  • Tidskriftsartikel (refereegranskat)abstract
    • Objectives Dual antiplatelet therapy (DAPT) with aspirin + a P2Y12 inhibitor is recommended for at least 12 months for patients with acute coronary syndrome (ACS), with shorter durations considered for patients with increased bleeding risk. However, there are no decision support tools available to predict an individual patients bleeding risk during DAPT treatment in the post-ACS setting. Methods To develop a longitudinal bleeding risk prediction model, we analysed 9240 patients with unstable angina/non-ST segment elevation myocardial infarction (NSTEMI) from the Targeted Platelet Inhibition to Clarify the Optimal Strategy to Medically Manage Acute Coronary Syndromes (TRILOGY ACS) trial, who were managed without revascularisation and treated with DAPT for a median of 14.8 months. Results We identified 10 significant baseline predictors of non-coronary artery bypass grafting (CABG)-related Global Use of Strategies to Open Occluded Arteries (GUSTO) severe/life-threatening/moderate bleeding: age, sex, weight, NSTEMI (vs unstable angina), angiography performed before randomisation, prior peptic ulcer disease, creatinine, systolic blood pressure, haemoglobin and treatment with beta-blocker. The five significant baseline predictors of Thrombolysis In Myocardial Infarction (TIMI) major or minor bleeding included age, sex, angiography performed before randomisation, creatinine and haemoglobin. The models showed good predictive accuracy with Therneaus C-indices: 0.78 (SE=0.024) for the GUSTO model and 0.67 (SE=0.023) for the TIMI model. Internal validation with bootstrapping gave similar C-indices of 0.77 and 0.65, respectively. External validation demonstrated an attenuated C-index for the GUSTO model (0.69) but not the TIMI model (0.68). Conclusions Longitudinal bleeding risks during treatment with DAPT in patients with ACS can be reliably predicted using selected baseline characteristics. The TRILOGY ACS bleeding models can inform riskbenefit considerations regarding the duration of DAPT following ACS.
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  • Alfredsson, Joakim, et al. (författare)
  • Risks and Benefits of Triple Oral Anti-Thrombotic Therapies After Acute Coronary Syndromes and Percutaneous Coronary Intervention
  • 2015
  • Ingår i: Drug Safety. - : Adis / Springer Verlag (Germany). - 0114-5916 .- 1179-1942. ; 38:5, s. 481-491
  • Forskningsöversikt (refereegranskat)abstract
    • The key pathophysiological process underlying symptomatic coronary artery disease, including acute coronary syndromes (ACS), is usually a rupture or an erosion of an atherosclerotic plaque, followed by platelet activation and subsequent thrombus formation. Early clinical trials showed benefit with long-term aspirin treatment, and later-based on large clinical trials-dual anti-platelet therapy (DAPT), initially with clopidogrel, and more recently with prasugrel or ticagrelor, has become the established treatment in the post-ACS setting and after percutaneous coronary intervention (PCI). Treatment with DAPT is recommended for both ST-elevation myocardial infarction and non-ST-elevation ACS, as well as after PCI with stenting, in American and European clinical guidelines. Notwithstanding the benefits observed with DAPT, including third-generation P2Y(12) receptor inhibitors plus aspirin, ACS patients remain at high risk for a recurrent cardiovascular event, suggesting that other treatment strategies, including the addition of a third oral anti-platelet agent or a novel oral anticoagulant (NOAC) to standard DAPT regimens, may provide additional benefit for post-ACS patients and for patients undergoing PCI. Adding a third anti-thrombotic agent to DAPT after an ACS event or a PCI procedure has been shown to have modest benefit in terms of ischemic event reduction, but has consistently been associated with increased bleeding complications. Therefore, the quest to optimize anti-thrombotic therapies post-ACS and post-PCI continues unabated but is tempered by the historical experiences to date that indicate that careful patient and dose selection will be critical features of future randomized trials.
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7.
  • Chan, Mark Y., et al. (författare)
  • Temporal biomarker profiling reveals longitudinal changes in risk of death or myocardial infarction in Non-ST-segment elevation acute coronary syndrome
  • 2017
  • Ingår i: Clinical Chemistry. - : American Association for Clinical Chemistry. - 0009-9147. ; 63:7, s. 1214-1226
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: There are conflicting data on whether changes in N-terminal pro-B-type natriuretic peptide (NT-proBNP) and high-sensitivity C-reactive protein (hs-CRP) concentrations between time points (delta NT-proBNP and hs-CRP) are associated with a change in prognosis. METHODS: We measured NT-proBNP and hs-CRP at 3 time points in 1665 patients with non-ST-segment elevation acute coronary syndrome (NSTEACS). Cox proportional hazards was applied to the delta between temporal measurements to determine the continuous association with cardiovascular events. Effect estimates for delta NT-proBNP and hs-CRP are presented per 40% increase as the basic unit of temporal change. RESULTS: Median NT-proBNP was 370.0 (25th, 75th percentiles, 130.0, 996.0), 340.0 (135.0, 875.0), and 267.0 (111.0, 684.0) ng/L; and median hs-CRP was 4.6 (1.7, 13.1), 1.9 (0.8, 4.5), and 1.8 (0.8, 4.4) mg/L at baseline, 30 days, and 6 months, respectively. The deltas between baseline and 6 months were the most prognostically informative. Every 40% increase of delta NTproBNP (baseline to 6 months) was associated with a 14% greater risk of cardiovascular death (adjusted hazard ratio (HR) 1.14, 95% CI, 1.03-1.27) and with a 14% greater risk of all-cause death (adjusted HR 1.14, 95% CI, 1.04 -1.26), while every 40% increase of delta hs- CRP (baseline to 6 months) was associated with a 9% greater risk of the composite end point (adjusted HR 1.09, 95% CI, 1.02-1.17) and a 10% greater risk of myocardial infarction (adjusted HR 1.10, 95%, CI 1.00 -1.20). CONCLUSIONS: Temporal changes in NT-proBNP and hs-CRP are quantitatively associated with future cardiovascular events, supporting their role in dynamic risk stratification of NSTEACS.
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8.
  • Cornel, Jan H., et al. (författare)
  • Relationship of Platelet Reactivity With Bleeding Outcomes During Long-Term Treatment With Dual Antiplatelet Therapy For Medically Managed Patients With Non-St-Segment Elevation Acute Coronary Syndromes
  • 2016
  • Ingår i: Journal of the American Heart Association. - : Wiley-Blackwell. - 2047-9980. ; 5:11
  • Tidskriftsartikel (refereegranskat)abstract
    • Background--The relationship between "on-treatment" low platelet reactivity and longitudinal risks of major bleeding dual antiplatelet therapy following acute coronary syndromes remains uncertain, especially for patients who do not undergo percutaneous coronary intervention. Methods and Results--We analyzed 2428medicallymanaged acute coronary syndromes patients fromthe Targeted Platelet Inhibition to Clarify the Optimal Strategy to Medically Manage Acute Coronary Syndromes (TRILOGY ACS) trial who had serial platelet reactivity measurements (P2Y12 reaction units; PRUs) and were randomized to aspirin+prasugrel versus aspirin+clopidogrel for up to 30 months. Contal's method was used to determine whether a cut point for steady-state PRU values could distinguish high versus low bleeding risk using 2-level composites: Global Use of Strategies to Open Occluded Coronary Arteries (GUSTO) severe/life-threatening or moderate bleeding unrelated to coronary artery bypass grafting (CABG) and non-CABG Thrombolysis In Myocardial Infarction (TIMI) major orminor bleeding. Exploratory analyses used 3-level composites that incorporatedmild andminimalGUSTOand TIMI events.Continuousmeasures of PRUs (per 10-unit decrease)were not independently associatedwith the 2-levelGUSTO (adjusted hazard ratio [HR], 1.01; 95% CI, 0.96-1.06) or TIMI composites (1.02; 0.98-1.07). Furthermore, no PRU cut point could significantly distinguish bleeding risk using the 2-level composites.However, the PRUcut point of 75 differentiated bleeding riskwith the 3-level composites ofGUSTO(26.5% vs 12.6%; adjusted HR, 2.28; 95% CI, 1.77-2.94; P<0.001) and TIMI bleeding events (25.9% vs 12.2%; adjusted HR, 2.30; 95% CI, 1.78-2.97; P<0.001). Conclusions--Among medically managed non-ST-segment elevation acute coronary syndromes patients receiving prolonged dual antiplatelet therapy, PRU values were not significantly associated with the long-term risk of major bleeding events, suggesting that low on-treatment platelet reactivity does not independently predict serious bleeding risk.
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9.
  • Fanaroff, Alexander C., et al. (författare)
  • Antithrombotic agents for secondary prevention after acute coronary syndromes : A systematic review and network meta-analysis
  • 2017
  • Ingår i: International Journal of Cardiology. - : ELSEVIER IRELAND LTD. - 0167-5273 .- 1874-1754. ; 241, s. 87-96
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Nine oral antithrombotic medications currently available in the United States and Europe have been studied in clinical trials for secondary prevention of cardiac events following acute coronary syndrome (ACS). Few combinations of these medications have been directly compared, and studies have used multiple different comparator regimens.Methods: We performed a systematic review and network meta-analysis of randomized controlled trials evaluating one or more available oral antithrombotic therapies in patients with ACS or prior myocardial infarction (MI). Co-primary outcomes were all-cause and cardiovascular mortality compared with imputed placebo and aspirin monotherapy.Results: Forty-seven studies (196,057 subjects) met inclusion criteria and were included in the systematic review. Almost all studies tested either aspirin monotherapy compared with placebo or a combination of antithrombotic agents that included aspirin. Nearly all regimens reduced all-cause and cardiovascular mortality compared with imputed placebo. However, compared with imputed aspirin monotherapy, only combination therapy with aspirin plus ticagrelor was associated with lower cardiovascular mortality (OR 0.80, 95% CI 0.68-0.93), and triple therapy with aspirin, clopidogrel, and very low dose rivaroxaban was associated with lower all-cause mortality (OR 0.67, 95% CI 0.49-0.90). Major bleeding was increased 45-95% with dual antithrombotic therapy, and 2-6-fold with triple therapy.Conclusion: Few combinations of antithrombotic therapy were associated with a reduction inmortality compared with aspirin monotherapy, highlighting the difficulty in clinical interpretation of composite ischemic endpoints. Future studies may need to focus on limiting the number of antithrombotic therapies tested in combination to best balance ischemic event reduction and bleeding.
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10.
  • Fanaroff, Alexander C., et al. (författare)
  • Frequency, Regional Variation, and Predictors of Undetermined Cause of Death in Cardiometabolic Clinical Trials : A Pooled Analysis of 9259 Deaths in 9 Trials
  • 2019
  • Ingår i: Circulation. - 0009-7322 .- 1524-4539. ; 139:7, s. 863-873
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: Modern cardiometabolic clinical trials often include cardiovascular death as a component of a composite primary outcome, requiring central adjudication by a clinical events committee to classify cause of death. However, sometimes the cause of death cannot be determined from available data. The US Food and Drug Administration has indicated that this circumstance should occur only rarely, but its prevalence has not been formally assessed. METHODS: Data from 9 global clinical trials (2009-2017) with long-term follow-up and blinded, centrally adjudicated cause of death were used to calculate the proportion of deaths attributed to cardiovascular, noncardiovascular, or undetermined causes by therapeutic area (diabetes mellitus/pre-diabetes mellitus, stable atherosclerosis, atrial fibrillation, and acute coronary syndrome), region of patient enrollment, and year of trial manuscript publication. Patient-and trial-level variables associated with undetermined cause of death were identified using a logistic model. RESULTS: Across 127 049 enrolled participants from 9 trials, there were 9259 centrally adjudicated deaths: 5012 (54.1%) attributable to cardiovascular causes, 2800 (30.2%) attributable to noncardiovascular causes, and 1447 (15.6%) attributable to undetermined causes. There was variability in the proportion of deaths ascribed to undetermined causes by trial therapeutic area, region of enrollment, and year of trial manuscript publication. On multivariable analysis, acute coronary syndrome or atrial fibrillation trial (versus atherosclerotic vascular disease or diabetes mellitus/pre-diabetes mellitus), longer time from enrollment to death, more recent trial manuscript publication year, enrollment in North America (versus Western Europe), female sex, and older age were associated with greater likelihood of death of undetermined cause. CONCLUSIONS: In 9 cardiometabolic clinical trials with long-term followup, approximately 16% of deaths had undetermined causes. This provides a baseline for quality assessment of clinical trials and informs operational efforts to potentially reduce the frequency of undetermined deaths in future clinical research.
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