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Träfflista för sökning "WFRF:(Roe Matthew T.) ;spr:eng"

Sökning: WFRF:(Roe Matthew T.) > Engelska

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1.
  • Kanai, M, et al. (författare)
  • 2023
  • swepub:Mat__t
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2.
  • Abazajian, Kevork, et al. (författare)
  • CMB-S4 : Forecasting Constraints on Primordial Gravitational Waves
  • 2022
  • Ingår i: Astrophysical Journal. - : American Astronomical Society. - 0004-637X .- 1538-4357. ; 926:1
  • Tidskriftsartikel (refereegranskat)abstract
    • CMB-S4—the next-generation ground-based cosmic microwave background (CMB) experiment—is set to significantly advance the sensitivity of CMB measurements and enhance our understanding of the origin and evolution of the universe. Among the science cases pursued with CMB-S4, the quest for detecting primordial gravitational waves is a central driver of the experimental design. This work details the development of a forecasting framework that includes a power-spectrum-based semianalytic projection tool, targeted explicitly toward optimizing constraints on the tensor-to-scalar ratio, r, in the presence of Galactic foregrounds and gravitational lensing of the CMB. This framework is unique in its direct use of information from the achieved performance of current Stage 2–3 CMB experiments to robustly forecast the science reach of upcoming CMB-polarization endeavors. The methodology allows for rapid iteration over experimental configurations and offers a flexible way to optimize the design of future experiments, given a desired scientific goal. To form a closed-loop process, we couple this semianalytic tool with map-based validation studies, which allow for the injection of additional complexity and verification of our forecasts with several independent analysis methods. We document multiple rounds of forecasts for CMB-S4 using this process and the resulting establishment of the current reference design of the primordial gravitational-wave component of the Stage-4 experiment, optimized to achieve our science goals of detecting primordial gravitational waves for r > 0.003 at greater than 5σ, or in the absence of a detection, of reaching an upper limit of r < 0.001 at 95% CL.
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3.
  • Lopes, Renato D., et al. (författare)
  • Cardiovascular Safety of Degarelix Versus Leuprolide in Patients With Prostate Cancer : The Primary Results of the PRONOUNCE Randomized Trial
  • 2021
  • Ingår i: Circulation. - 1524-4539. ; 144:16, s. 1295-1307
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: The relative cardiovascular safety of gonadotropin-releasing hormone (GnRH) antagonists compared with GnRH agonists in men with prostate cancer and known atherosclerotic cardiovascular disease remains controversial. METHODS: In this international, multicenter, prospective, randomized, open-label trial, men with prostate cancer and concomitant atherosclerotic cardiovascular disease were randomly assigned 1:1 to receive the GnRH antagonist degarelix or the GnRH agonist leuprolide for 12 months. The primary outcome was the time to first adjudicated major adverse cardiovascular event (composite of death, myocardial infarction, or stroke) through 12 months. RESULTS: Because of slower-than-projected enrollment and fewer-than-projected primary outcome events, enrollment was stopped before the 900 planned participants were accrued. From May 3, 2016, to April 16, 2020, a total of 545 patients from 113 sites across 12 countries were randomly selected. Baseline characteristics were balanced between study groups. The median age was 73 years, 49.8% had localized prostate cancer; 26.3% had locally advanced disease, and 20.4% had metastatic disease. A major adverse cardiovascular event occurred in 15 (5.5%) patients assigned to degarelix and 11 (4.1%) patients assigned to leuprolide (hazard ratio, 1.28 [95% CI, 0.59-2.79]; P=0.53). CONCLUSIONS: PRONOUNCE (A Trial Comparing Cardiovascular Safety of Degarelix Versus Leuprolide in Patients With Advanced Prostate Cancer and Cardiovascular Disease) is the first, international, randomized clinical trial to prospectively compare the cardiovascular safety of a GnRH antagonist and a GnRH agonist in patients with prostate cancer. The study was terminated prematurely because of the smaller than planned number of participants and events, and no difference in major adverse cardiovascular events at 1 year between patients assigned to degarelix or leuprolide was observed. The relative cardiovascular safety of GnRH antagonists and agonists remains unresolved. Registration: URL: https://www.clinicaltrials.gov; Unique identifier: NCT02663908.
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4.
  • 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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5.
  • 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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7.
  • 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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8.
  • 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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9.
  • Amano, Tatsuya, et al. (författare)
  • Transforming Practice : Checklists for Delivering Change
  • 2022
  • Ingår i: Transforming Conservation : A Practical Guide to Evidence and Decision Making - A Practical Guide to Evidence and Decision Making. - 9781800648586 - 9781800648562 ; , s. 367-386
  • Bokkapitel (refereegranskat)abstract
    • Delivering a revolution in evidence use requires a cultural change across society. For a wide range of groups (practitioners, knowledge brokers, organisations, organisational leaders, policy makers, funders, researchers, journal publishers, the wider conservation community, educators, writers, and journalists), options are described to facilitate a change in practice, and a series of downloadable checklists is provided.
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10.
  • Attar, Rubina, et al. (författare)
  • Outcomes After Acute Coronary Syndrome in Patients With Diabetes Mellitus and Peripheral Artery Disease (from the TRACER, TRILOGY-ACS, APPRAISE-2, and PLATO Clinical Trials)
  • 2022
  • Ingår i: American Journal of Cardiology. - : Elsevier BV. - 0002-9149 .- 1879-1913. ; 178, s. 11-17
  • Tidskriftsartikel (refereegranskat)abstract
    • Patients with acute coronary syndrome (ACS) are at risk for recurrent adverse events, and multiple reports suggest that this risk is increased in patients with concomitant diabetes mellitus (DM) and peripheral artery disease (PAD). The aim of this article was to investigate cardiovascular outcomes in patients with DM presenting with ACS, stratified by PAD status. Data were derived from 4 randomized post-ACS trials (PLATO [Platelet Inhibition and Patient Outcomes], APPRAISE-2 p Apixaban for Prevention of Acute Ischemic Events 2], TRILOGY [Targeted Platelet Inhibition to Clarify the Optimal Strategy to Medically Manage], and TRACER [Thrombin Receptor Agonist for Clinical Event Reduction in Acute Coronary Syndrome]). Using Cox regression analysis, we investigated major adverse cardiovascular events (MACEs), a composite of cardiovascular mortality, myocardial infarction (MI), or stroke and the individual components of MACE and all-cause mortality in patients with DM, presenting with ACS, stratified by PAD status as the risk modifier. This study included 15,387 patients with a diagnosis of DM and ACS, of whom 1,751 had an additional diagnosis of PAD. PAD was associated with more than doubled rates of MACE (hazard ratio [HR] 2.03, 95% confidence interval [CI] 1.81 to 2.27), all-cause mortality (HR 2.48, 95% CI 2.14 to 2.87), cardiovascular mortality (HR 2.42, 95% CI 2.04 to 2.86), and MI (HR 2.07, 95% CI 1.79 to 2.38). Patients with both PAD and DM were also more optimally treated with antihypertensive, antidiabetic, and statin medication at baseline. In conclusion, this analysis of 4 major post-ACS trials showed that patients with DM and PAD had a substantially higher risk of MACE, cardiovascular mortality, all-cause mortality, and MI despite being optimally treated with guideline-based therapies.
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