11,573 results match your criteria: "Stroke Anticoagulation and Prophylaxis"

Objectives: To compare the premarket and postmarket evidence of safety and efficacy of direct oral anticoagulants approved for stroke prevention in atrial fibrillation patients across four major regulatory agencies.

Design: Cross-sectional.

Setting: European Medicines Association (EMA), US Food and Drug Administration (FDA), Health Canada and Australian Therapeutic Goods Administration (TGA).

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Clinical outcomes of Asian patients with newly diagnosed atrial fibrillation and previously diagnosed atrial fibrillation: Insights from the CODE-AF Registry.

Heart Rhythm

October 2024

Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea; Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea. Electronic address:

Background: Atrial fibrillation (AF) may have different clinical features in its early phase.

Objective: The purpose of this study was to compare the characteristics and clinical outcomes of early-phase AF with later-phase AF using a large multicenter prospective registry (CODE-AF [COmparison study of Drugs for symptom control and complication prEvention of Atrial Fibrillation]).

Methods: Patients enrolled between June 2016 and March 2021 were divided into 2 groups based on AF duration: (1) newly diagnosed (AF duration ≤90 days); and (2) previously diagnosed (AF duration >90 days).

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Venous thromboembolism (VTE) is a serious health condition and represents an important cause of morbidity and, in some cases, mortality due to the lack of effective treatment options. According to the Centers for Disease Control and Prevention, 3 out of 10 people with VTE will have recurrence of a clotting event within ten years, presenting a significant unmet medical need. For some VTE patients, symptoms can last longer and have a higher than average risk of serious complications; in contrast, others may experience complications arising from insufficient therapies.

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Cerebral ischemia can lead to destruction of the blood-brain barrier (BBB), the main cause of cerebral edema and cerebral infarction. BBB damage is also one of the key factors affecting the result of drug therapy. We studied the protective effect of 5-day pretreatment with protocatechuic aldehyde (PAL) at doses of 10 and 20 mg/kg on BBB function and structure after middle cerebral artery occlusion/reperfusion (MCAO/R) in rats.

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Article Synopsis
  • Left atrial appendage closure (LAAC) is used as an alternative stroke prevention method for patients who cannot take blood thinners, but pulmonary artery injury (PAI) is a rare and serious complication associated with it.
  • A review of previous PAI cases and data from the FDA's MAUDE database identified 36 cases, predominantly involving older patients, and highlighted that PAI often presents soon after the procedure, with a significant percentage requiring surgery.
  • The study emphasizes the need for heightened awareness of PAI symptoms post-LAAC, especially concerning rapid fluid accumulation around the heart, even without clear predictive signs from imaging or clinical details.
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Background: The prospective, single-arm, observational, phase 4 ETNA-AF Europe study collected real-world data about safety, effectiveness and therapeutic adherence in European patients with non-valvular atrial fibrillation newly prescribed with edoxaban and followed up for 4 years.

Methods: Overall, 13 164 patients were included in the full-analysis set, which means that they had at least one documentation after baseline at 4 years. The current paper reports about the 3329 Italian patients out of the whole European population.

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Competing stroke mechanisms despite adequate oral anticoagulant therapy: the role of transesophageal echocardiography.

J Cardiovasc Med (Hagerstown)

December 2024

IRCCS Istituto delle Scienze Neurologiche di Bologna, UOC Neurologia e Rete Stroke metropolitana.

Article Synopsis
  • The study focused on patients who had ischemic strokes while on oral anticoagulant therapy (OAT) to explore how transesophageal echocardiography (TEE) could help identify cardiac causes of stroke.
  • TEE was found to reveal potential cardiac mechanisms for stroke in 88% of the cases, with issues like valvular thrombi and asymptomatic infective endocarditis being common findings.
  • The results suggest that TEE significantly impacts treatment decisions, highlighting its importance in better understanding stroke causes and improving prevention strategies for future strokes in these patients.
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Introduction: Subdural haematomas (SDHs), acute or chronic, are common neurosurgical diagnoses. These problems can occur among patients requiring direct oral anticoagulation (DOAC) for atrial fibrillation. There are currently no guidelines regarding the optimal timing to resume anticoagulation for these patients after SDH.

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Over the last decade, the advent of direct oral anticoagulants (DOACs) has rapidly changed the landscape of anticoagulation. In the early 2010s, DOACs became widely available for stroke prevention in atrial fibrillation and the treatment of venous thromboembolism. About 10 years later, approximately two-thirds of patients requiring oral anticoagulant treatment were receiving a DOAC.

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Article Synopsis
  • A systematic review and network meta-analysis was conducted to evaluate the effectiveness of various oral anticoagulants for stroke prevention in older patients with atrial fibrillation (AF).
  • The analysis included 7 randomized controlled trials (RCTs) with a total of 79,003 patients, comparing several direct oral anticoagulants and a vitamin K antagonist (VKA).
  • Results showed that Apixaban 5 mg and different dosages of Dabigatran and Edoxaban were more effective than VKAs in reducing stroke risks, with various drugs ranking highest for specific bleeding risks.
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Improve time to anti-coagulation reversal for hemorrhagic strokes.

J Stroke Cerebrovasc Dis

December 2024

Department of Neurology, Duke University School of Medicine, Durham, NC, USA; Duke Clinical Research Institute, Durham, NC, USA. Electronic address:

Background: Oral anticoagulation (OAC) is a risk factor for intracerebral hemorrhage (ICH) which is an important source of disability and mortality. OAC-associated ICH (OAC-ICH) patients have worse outcomes as compared to ICH patients not on OAC, likely because of the associated larger stroke volumes, higher propensity to intraventricular hemorrhage, and a higher risk of rebleeding. Although current guidelines recommend that OAC should be reversed quickly, many health care systems have not developed a process for optimizing that aspect of care.

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Atrial fibrillation (AF) is common and warrants consideration of oral anticoagulant (OAC) medication. Usually, the decision is straightforward, following the pathway outlined in the European Society of Cardiology's guideline; however, certain situations fall outside of this evidence base - such as a diagnosis of subclinical AF made via implanted devices or wearable electrocardiogram monitors, or alternatively diagnosis of 'secondary AF' following a major stressor. Subclinical AF is associated with stroke, though not to the extent of clinical AF, and the benefits of anticoagulation appear to be lower.

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Article Synopsis
  • Variegin and its variant, ultravariegin (UV), have shown potential in early studies for improving blood clot inhibition without the bleeding risks associated with traditional drugs like heparin.
  • PEGylation, a technique that attaches PEG chains to the UV peptide, significantly enhances its circulation time and effectiveness, allowing for prolonged anticoagulant effects in animal models while maintaining its efficacy.
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Article Synopsis
  • A 16-year-old girl diagnosed with right-sided hemiparesis from a neonatal stroke has a missense mutation in her Protein S gene, linked to a hereditary deficiency seen in her father and grandfather.
  • The girl was closely monitored by her physician and underwent various blood tests starting at age 13, revealing low Protein S activity and prolonged clotting times.
  • After receiving her COVID-19 vaccinations in 2021 and 2022, her clotting parameters improved significantly, suggesting that the vaccine may reduce thrombosis risk in individuals with inherited thrombophilia.
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Article Synopsis
  • Patients who need oral anticoagulation and undergo coronary intervention can use a special stent (COBRA PzF) that may lower the need for long-term dual antiplatelet therapy (DAPT) while maintaining safety against blood clots.
  • In a study, 996 patients were randomized to receive either the COBRA PzF stent with a short 14-day DAPT or a regular stent with longer DAPT durations of 3 to 6 months.
  • Results showed that the COBRA stent did not significantly reduce bleeding compared to the control group and was not proven to maintain equivalent safety for thromboembolic events, indicating further investigation is needed.
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Trends over time in oral anticoagulation and stroke rates in atrial fibrillation: A community-based study.

J Stroke Cerebrovasc Dis

December 2024

Geisinger Health System, Danville, PA, United States. Electronic address:

Article Synopsis
  • - The study analyzed the transition from warfarin to direct oral anticoagulants (DOACs) for preventing strokes in atrial fibrillation patients from 2011 to 2021, revealing increased DOAC use and decreased warfarin use over time.
  • - Among nearly 32,000 patients, OAC usage rose from 50.2% to 59.4%, with warfarin dropping from 49.3% to 30.8% and DOACs increasing from 2.0% to 30.8%.
  • - There was a notable increase in ischemic stroke rates between 2011-2015, followed by a significant decrease from 2016-2021,
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Left atrial appendage occlusion devices vs direct oral anticoagulants for atrial fibrillation: An updated systematic review and meta-analysis.

Curr Probl Cardiol

January 2025

INC Hospital, Department of Interventional Cardiology, Universidade Federal do Paraná, Faculdades Pequeno Príncipe, Hospital Santa Casa de Misericórdia de Curitiba, Rua Jeremias Maciel Perretto, 300, Curitiba, Paraná, 81210-310, Brazil. Electronic address:

Article Synopsis
  • Direct Oral Anticoagulants (DOACs) are commonly used for treating non-valvular atrial fibrillation (NVAF), but Percutaneous Left Atrial Appendage Occlusion (LAAO) is a new treatment method with uncertain safety and effectiveness compared to DOACs.
  • A systematic review of ten studies involving over 18,500 patients found that LAAO is linked to lower all-cause and cardiovascular mortality rates, as well as a reduction in the composite outcomes of death, bleeding, and thromboembolic events.
  • While LAAO showed trends toward reduced stroke or TIA events and lower bleeding rates compared to DOACs, no significant differences in thromboembolic events were observed.
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Left Atrial Appendage Occlusion vs Standard of Care After Ischemic Stroke Despite Anticoagulation.

JAMA Neurol

September 2024

Department of Cardiology, Sint Antonius Ziekenhuis, Nieuwegein, the Netherlands.

Article Synopsis
  • Patients with a heart condition called atrial fibrillation (AF) who have strokes can still be at very high risk of having more strokes, even when taking medication to prevent them.
  • Left atrial appendage occlusion (LAAO) is a special procedure aimed at helping these patients avoid future strokes.
  • A study compared two groups – one that had LAAO and one that only continued their usual medication – and found that there was still a risk of strokes in both groups over a two-year period.
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Concordance between risk scales for venous thromboembolism in patients treated in emergency departments.

Emergencias

June 2024

Departamento de Medicina Interna, Clínica Universidad de Navarra, Madrid, España. CIBER Enfermedades Respiratorias (CIBERES), Madrid, España. Interdisciplinar Teragnosis and Radiosomics (INTRA) Research Group, Universidad de Navarra, España.

Objective: To evaluate agreement between risk-assessment models for venous thromboembolism (VTE) in patients hospitalized for medical conditions and to analyze variables associated with the decision to prescribe pharmacological thromboprophylaxis in hospital emergency departments (EDs). Conclusions.

Methods: Prospective observational multicenter cohort study.

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Background: Oral anticoagulants (OACs) are essential for the prevention and treatment of thromboembolic disorders, but bleeding, a major complication, can have a fatal impact on the patient's treatment.

Objectives: We aimed to estimate the nationwide, real-world incidence rate of bleeding in patients taking OACs and confirm the incidence by indications and risk factors.

Methods: This cross-sectional study identified OAC users from April 1 to December 31, in both 2019 and 2020, using the HIRA-NPS database.

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Article Synopsis
  • The study analyzed trends in the diagnosis of venous thromboembolism (VTE) and arterial ischemic stroke (AIS) in pediatric patients during the COVID-19 pandemic, using data from the Pediatric Health Information Systems database from 2018 to 2021.
  • The rate of VTE diagnoses increased by 28.6% during the pandemic years compared to previous years, while AIS rates remained stable; COVID-19 diagnosis was linked to a higher likelihood of VTE but not AIS.
  • Utilization of pharmacological thromboprophylaxis doubled during the pandemic, especially among patients with COVID-19, indicating a significant response in treatment approaches despite the rising rates of VTE.
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Article Synopsis
  • The study examined how isolating the left atrial appendage (LAA) affects clinical outcomes in patients with atrial fibrillation (AF) who had surgical ablation along with mitral valve (MV) surgery.
  • Among 875 patients analyzed, those who had LAA isolated experienced a significantly lower risk of long-term stroke compared to those who preserved it, but there were no notable differences in mortality or AF recurrence.
  • The findings suggest that while LAA isolation reduces long-term stroke risk, it does not lead to increased survival rates for these patients.
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Background: It is unknown whether hypertensive microangiopathy or cerebral amyloid angiopathy (CAA) predisposes more to anticoagulant-associated intracerebral hemorrhage (AA-ICH). The purpose of our study was to determine whether AA-ICH is associated with lobar location and probable CAA.

Methods: This was a cross-sectional analysis of patients with first-ever spontaneous ICH admitted to a tertiary hospital in Boston, between 2008 and 2023.

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