1,721,228 research outputs found
Editorial: Anticoagulation in cardiovascular diseases: evolving role, unmet needs, and grey areas
Full text linkN
Serum albumin and risk of cardiovascular events in primary and secondary prevention: a systematic review of observational studies and Bayesian meta-regression analysis
No full textThe predictive role of serum albumin (SA) has been evaluated in primary prevention studies. We want to assess the association of SA with the subsequent risk of cardiovascular events (CVE) in primary and secondary prevention studies. We performed a systematic review and Bayesian meta-regression analysis. Studies were identified by PubMed and EMBASE database using a combination of the following terms and MeSH terms: "serum albumin", "myocardial infarction, "cardiovascular events", "percutaneous coronary intervention" and "coronary restenosis". No time restriction of the research was applied. Two experienced physicians reviewed data on outcome measures and assessed the quality rating. The main outcomes were CVE including myocardial infarction, coronary heart disease, percutaneous coronary intervention and coronary restenosis. 15 studies of SA and CVE were identified involving 65,077 subjects with a mean age of 57.89 +/- 6.05 years and a mean follow-up of 9.4 (+/- 5.56) years. Subjects under SA cut-off of 3.8 g/dL had a combined hazard ratio (HR) for CVE of 2.16 [95% confidence interval (CI) 1.93-2.45]. An increased risk for CVE was also evident using SA as a continuous variable (HR = 1.89, 95% CI 1.5-2.39). Females and males had a similar risk for CVE (HR 2.46, 95% CI 1.92-3.16, and HR 1.46, 95% CI 1.27-1.69, respectively). We found a similar risk of CVE between primary and secondary prevention studies (HR 1.79, 95% CI 1.5-2.17, and HR 2.47, 95% CI 2.24-2.75, respectively). Low SA levels are associated with an increased risk of CVE, not only in subjects free from CVE, but also in patients who already experienced a CVE
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Timing of anticoagulation for the management of portal vein thrombosis in liver cirrhosis
Full text linkUse of direct oral anticoagulants in patients with antiphospholipid syndrome. a systematic review and comparison of the international guidelines
Full text linkAntiphospholipid antibody syndrome (APS) requires long-term anticoagulation to prevent recurrent thrombosis. Direct oral anticoagulants (DOACs) have been increasingly used in APS patients, but contradictory guidelines recommendations on their use do exist. We performed a systematic review of literature including studies investigating the role of DOACs in APS patients. At this aim, PubMed and Cochrane databases were searched according to PRISMA guidelines. We identified 14 studies which investigated the use of DOACs in patients with APS, of which 3 randomized clinical trials (RCTs), 1 post-hoc analysis of 3 RCTs, 7 case series and 3 cohort studies (2 prospective and 1 retrospective). Among DOACs, rivaroxaban was the most used (n = 531), followed by dabigatran (n = 90) and apixaban (n = 46). Regarding guidelines indications, the 2019 European Society of Cardiology (ESC) and American Society of Hematology (ASH) guidelines recommend against the use of DOACs in all APS patients. The European League Against Rheumatism (EULAR), British Society for Haematology (BSH), and International Society on Thrombosis and Haemostasis (ISTH) guidance provided more detailed indications stating that warfarin should be the first-choice treatment but DOACs may be considered in patients (1) already on a stable anticoagulation with a DOAC, (2) with low-quality anticoagulation by warfarin, (3) unwilling/unable to undergo INR monitoring, (4) with contraindications or serious adverse events under warfarin. Patients with arterial APS or triple positivity should be treated with warfarin while venous APS with single or double positivity may be candidate to DOACs, but high-quality studies are needed
- …
