Internal and emergency medicine
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Antithrombotic treatment in patients with atrial fibrillation undergoing percutaneous coronary intervention is still debated. We conducted a meta-analysis of recent randomized controlled trials to evaluate the benefit of different antithrombotic strategies. Data were analyzed between May and September 2019. ⋯ DAT was as effective and safer than TAT in patients with stable coronary artery disease, while a trend towards increased ischemic events was seen in ACS patients. DAT with a DOAC showed similar efficacy and less bleeding than TAT with a VKA. However, increased stent thrombosis with DAT may be present, and TAT should be considered in patients at high ischemic risk, such as ACS patients.
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Historical Article
Practical implications of the 2019 Nobel Prize in Physiology or Medicine: from molecular adaptation to hypoxia to novel anti-anemic drugs in the clinic.
The 2019 Nobel Prize for Medicine or Physiology was assigned to three prestigious physician-scientists, Gregg L. Semenza, William G. ⋯ Ratcliffe, who clarified the molecular mechanisms of hypoxia adaptation. This viewpoint traces their fundamental findings, which have paved the way for the development of innovative drugs for a wide range of common diseases, including cancer and anemia.
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Literature reviews can be directly used by clinicians and other health professionals to support many decision-making processes. This review aims to offer health professionals an essential practical guide to critically evaluate and properly understand results of review articles published in the scientific literature. ⋯ Key steps of this guide are: to consider the topic and the research question (a), to check the review type (b), to evaluate the methodology (with a keen focus on review guidelines, search strategy and study-selection process, evaluation of the quality and certainty of included evidence, and statistical analysis) (c), and to define the real impact of review results (d). This guide offers a description of essential and easy-to-apply key steps which can help health professionals to evaluate the reliability and implications of a literature review, and to select the latest high-quality scientific evidence to keep updated with.
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Atrial fibrillation is the most common arrhythmia and its prevalence is expected to further increase. Patients with atrial fibrillation have an increased risk of stroke (fivefold increased risk), heart failure, and death. In patients with non-valvular atrial fibrillation, the most recent guidelines recommend the use of the CHA2DS2-VASc (congestive heart failure, arterial hypertension, age > 75 years, diabetes mellitus, stroke/transient ischemic attack, vascular disease, age 65-74 years, sex category) scoring system to identify those who may benefit from oral anticoagulant treatment. ⋯ Both prospective and observational studies using transthoracic echocardiography prediction of events and studies utilizing transesophageal echocardiographic parameters as surrogate markers of thromboembolic events make sustainable the hypothesis that echocardiography could improve thromboembolism prediction in non-valvular atrial fibrillation. However, because of some controversial results of different studies, determination of the best echocardiographic parameter predicting thromboembolic events in atrial fibrillation remains uncertain. The combination of left atrial enlargement with left atrial function (in particular assessing left atrial strain) appears to be very valuable, but needs to be confirmed in large-scale multi-center trials.