10,673 results match your criteria: "Radcliffe Department of Medicine ; University of Oxford ; Oxford[Affiliation]"

Article Synopsis
  • The study aimed to assess the effectiveness of combining resting echocardiography (TTE) and stress myocardial perfusion scintigraphy (MPS) for diagnosing coronary artery disease in patients with stable angina and normal left ventricle (LV).
  • Researchers hypothesized that a normal LV on TTE could eliminate the need for resting MPS, thus reducing radiation exposure without sacrificing diagnostic accuracy.
  • Results showed that the ECHO-MPS approach achieved similar diagnostic accuracy to the standard method, indicating that stress MPS alone may suffice for patients with normal systolic LV function.
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Pediatric MOG-Ab-Associated Encephalitis: Supporting Early Recognition and Treatment.

Neurol Neuroimmunol Neuroinflamm

December 2024

From the Department of Neurology (N.N.K., O.A.-M., Y.H.), Great Ormond Street Hospital for Children NHS Foundation Trust; Department of Neuroinflammation (N.N.K., D.C., O.A.-M., C.H., O.C., Y.H.), Institute of Neurology, University College London; Children's Neurosciences (M.E., V.L., M.L., T.R.), Evelina London Children's Hospital, Guy's and St Thomas NHS Foundation Trust; Department of Women and Children's Health (M.E., M.L., T.R.), School of Life Course Sciences (SoLCS), King's College London; Department of Paediatrics (A.S., S.R., J.P.), Children's Hospital, John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust; Department of Paediatric Neurology (M.V.C.), Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust; Translational and Clinical Research Sir James Spence Institute (R.F.), University of Newcastle, Royal Victoria Infirmary; Department of Neurology (R.F.), Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust; Department of Neurology (R.K.), Alder Hey Children's Hospital, Alder Hey Children's NHS Foundation Trust, Liverpool; Department of Paediatric Neurology (D.R., Siobhan West), Royal Manchester Children's Hospital, Manchester University NHS Foundation Trust; Department of Neurology (E.W., Sukhvir Wright), Birmingham Children's Hospital, Birmingham Women's and Children's NHS Foundation Trust; Department of Neuroradiology (A.B., K.M.), Great Ormond Street Hospital, Great Ormond Street Hospital Trust, London, United Kingdom; Department of Neurology (E.P.F.), Laboratory Medicine and Pathology and Center for Multiple Sclerosis and Autoimmune Neurology, Rochester, MN; NIHR University College London Hospitals Biomedical Research Centre (O.C.); and Department of Neuroinflammation (O.C.), National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, United Kingdom.

Article Synopsis
  • A study assessed children under 18 with antibodies to myelin oligodendrocyte glycoprotein (MOG-Ab), focusing on those with encephalitis who didn’t fit the criteria for acute disseminated encephalitis (ADEM), comparing them to those with ADEM.
  • Out of 235 MOG-Ab positive patients, 33 had encephalitis and 74 had ADEM, with common symptoms including headache, seizures, and fever; 24% had a normal initial brain MRI.
  • Findings indicated that children with encephalitis were generally older, more often admitted to intensive care, and had a delayed start of steroid treatment, suggesting MOG-Ab testing is essential for suspected encephalitis
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Article Synopsis
  • The study evaluated the safety and efficacy of glyceryl trinitrate (GTN) for patients experiencing transient ischaemic attack (TIA) during stroke trials, as part of the RIGHT-2 trial.
  • Conducted as a multicenter, randomized, sham-controlled trial, the research involved administering GTN to patients with suspected ultra-acute stroke and assessing outcomes at 90 days using the modified Rankin Scale (mRS).
  • Results showed that while GTN effectively lowered blood pressure, it did not improve functional outcomes or mortality rates compared to the sham treatment, indicating no benefit for TIA patients.
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Predicting future hospital antimicrobial resistance prevalence using machine learning.

Commun Med (Lond)

October 2024

Modernising Medical Microbiology, Experimental Medicine, Nuffield Department of Medicine, Level 7 Research Offices, John Radcliffe Hospital, Headley Way, University of Oxford, Oxford, UK.

Article Synopsis
  • The study aims to predict antimicrobial resistance (AMR) at the hospital level in England using machine learning techniques, specifically focusing on historical data of AMR and antimicrobial usage over multiple years.
  • The research employs an Extreme Gradient Boosting (XGBoost) model and compares its predictive capability against other methods, finding XGBoost to offer the best performance, particularly in hospitals experiencing significant changes in AMR prevalence.
  • The results highlight that year-to-year AMR variability is generally low, but specific hospital groups with larger fluctuations can benefit from advanced predictive modeling, aiding in targeted interventions for AMR management.
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Background: Early assessment of patients with suspected transient ischaemic attack (TIA) is crucial to provision of effective care, including initiation of preventive therapies and identification of stroke mimics. Many patients with TIA present to emergency medical services (EMS) but may not require hospitalisation. Paramedics could identify and refer patients with low-risk TIA, without conveyance to the ED.

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Biologics in Asthma: Role of Biomarkers.

Immunol Allergy Clin North Am

November 2024

Respiratory Medicine Unit and Oxford Respiratory NIHR BRC, Nuffield Department of Clinical Medicine, University of Oxford, John Radcliffe Hospital, Headley Way, Headington, Oxford, OX3 9DU, UK. Electronic address:

Our modern understanding of asthma mainly concerns identification of inflammatory endotype to guide management. The distinction mostly concerns identification of type-2 inflammation, for which different biomarkers have been well characterized. Blood eosinophils corroborate activity in the interleukin (IL)-5 axis while fraction of exhaled nitric oxide is indicative of the IL-4/IL-13 axis, giving us an indication of activity in these distinct but complementary pathways.

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Estimated Carbon Savings from Changing Surgical Trends in Primary Elective Total Hip Arthroplasty in England: A Retrospective Observational Study.

Appl Health Econ Health Policy

January 2025

Getting It Right First Time programme, NHS England, Wellington House, 133-135 Waterloo Road, London, SE1 8UG, UK.

Article Synopsis
  • The NHS in England aims for net zero carbon emissions by 2045, focusing on reducing the carbon footprint of elective total hip arthroplasty (THA) procedures.
  • A study analyzed data from over 537,000 THA surgeries between 2014 and 2022, finding that the carbon footprint per patient decreased by about 25% during this period.
  • Key improvements, particularly in reducing hospital stay lengths, significantly contributed to this decline, suggesting that enhancing surgical efficiency can help meet sustainability goals while benefiting patient care and reducing costs.
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Article Synopsis
  • The study aimed to model how donor antibodies from convalescent plasma bind to the virus responsible for COVID-19, using an immunosorbent assay to measure the binding affinity of antibodies.
  • Results showed that for IgG, 89% of plasma donations had complex binding affinities, with median values indicating significant differences in concentration compared to IgA.
  • The model suggested that doubling the amount of convalescent plasma transfused could lead to effective binding to the virus if certain affinity and concentration thresholds are met, particularly in the early stages of infection.
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Calcification vs Inflammation: The Modern Toolkit for Cardiovascular Risk Assessment.

JACC Cardiovasc Imaging

October 2024

Acute Multidisciplinary Imaging and Interventional Centre, British Heart Foundation Centre of Research Excellence, Division of Cardiovascular Medicine, Radcliffe Department of Medicine, National Institute for Health and Care Research Oxford Biomedical Research Centre, University of Oxford, Oxford, England, United Kingdom.

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A proinflammatory stem cell niche drives myelofibrosis through a targetable galectin-1 axis.

Sci Transl Med

October 2024

Medical Research Council Weatherall Institute of Molecular Medicine (MRC WIMM) and NIHR Biomedical Research Centre Hematology Theme, University of Oxford, Oxford OX3 9DS, UK.

Myeloproliferative neoplasms are stem cell-driven cancers associated with a large burden of morbidity and mortality. Most patients present with early-stage disease, but a substantial proportion progress to myelofibrosis or secondary leukemia, advanced cancers with a poor prognosis and high symptom burden. Currently, it remains difficult to predict progression, and therapies that reliably prevent or reverse fibrosis are lacking.

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Article Synopsis
  • There’s a debate about how long patients with heart problems should take two types of medicine together, called dual antiplatelet therapy (DAPT).
  • Researchers wanted to see how effective and safe different lengths of DAPT are for patients who have serious heart issues and receive a special procedure to help their hearts.
  • They found that taking DAPT for just 1 month followed by another medicine might reduce serious bleeding, but didn't change the number of heart problems compared to taking DAPT for 12 months.
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Article Synopsis
  • Historically, women with aortic stenosis have been underdiagnosed and faced worse outcomes compared to men, leading to the need for better treatment recognition and participation in clinical trials.
  • The SMART trial aimed to compare the clinical and hemodynamic outcomes of women with small aortic annuli receiving either self-expanding valves (SEVs) or balloon-expandable valves (BEVs) during transcatheter aortic valve replacement.
  • In a study of 621 women, no significant differences were observed in the main clinical outcomes between the SEV and BEV groups after 12 months, but SEVs showed a lower rate of bioprosthetic valve dysfunction.
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Aims: Glucagon-like peptide-1 receptor agonists reduce major adverse cardiovascular events (MACE) and cardiovascular mortality in people with type 2 diabetes (T2D). However, previous studies suggest the effects on heart failure outcomes vary according to left ventricular ejection fraction (LVEF). We aimed to evaluate the effects of exenatide on cardiovascular events according to LVEF in people with T2D.

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Exploring uncatalogued genetic variation in antimicrobial resistance gene families in Escherichia coli: an observational analysis.

Lancet Microbe

November 2024

Nuffield Department of Medicine, University of Oxford, Oxford, UK; Oxford University Hospitals NHS Foundation Trust, Oxford, UK; NIHR Oxford Biomedical Research Centre, Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Oxford, UK; NIHR Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance at University of Oxford in partnership with UKHSA, Oxford, UK.

Background: Antimicrobial resistance (AMR) in Escherichia coli is a global problem associated with substantial morbidity and mortality. AMR-associated genes are typically annotated based on similarity to variants in a curated reference database, with the implicit assumption that uncatalogued genetic variation within these is phenotypically unimportant. In this study, we evaluated the performance of the AMRFinder tool and, subsequently, the potential for discovering new AMR-associated gene families and characterising variation within existing ones to improve genotype-to-susceptibility phenotype predictions in E coli.

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Background: Around 60% of term labours in the UK are continuously monitored using cardiotocography (CTG) to guide clinical labour management. Interpreting the CTG trace is challenging, leading to some babies suffering adverse outcomes and others unnecessary expedited deliveries. A new data driven computerised tool combining multiple clinical risk factors with CTG data (attentive CTG) was developed to help identify term babies at risk of severe compromise during labour.

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Article Synopsis
  • The study investigates the clinicopathological characteristics and prognosis of combined hepatocellular-cholangiocarcinoma (cHCC-CCA) using data from 72 cases at West China Hospital.
  • Researchers employed techniques like immunohistochemistry and fluorescence in situ hybridization to assess various tumor factors including human epidermal growth factor receptor 2 (HER2) expression and FGFR2 gene alterations.
  • Key findings indicate 49 cases were classic type cHCC-CCA, with an average survival of 18.9 months; tumor size, TNM stage, and serum AFP levels were identified as significant prognostic factors.
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Article Synopsis
  • Post-mortem studies reveal that patients who died from COVID-19 often show brainstem damage, which may result from immune responses during and after the infection.
  • Symptoms such as fatigue, breathlessness, and chest pain in post-hospitalization COVID-19 patients may be linked to these brainstem abnormalities.
  • Using advanced MRI techniques, a study found increased susceptibility in key brainstem regions of COVID-19 survivors, indicating a correlation between these changes and the severity of their illness and recovery outcomes.
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Article Synopsis
  • The text compares the development of blood transfusion services in Great Britain and Trinidad and Tobago, highlighting their differing approaches to blood donation and safety.
  • Britain has successfully implemented a national voluntary, non-remunerated blood donation system over 50 years, while Trinidad and Tobago historically relied on family replacement and paid donors, leading to ongoing challenges.
  • Recent efforts in Trinidad and Tobago, informed by Britain's experience, aim to establish a voluntary, non-remunerated donation model and create a nationally-coordinated blood transfusion service to improve safety and efficiency.
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  • Cerebrovascular events (CVEs) can happen during or after a procedure called TAVR, which replaces a heart valve, and can lead to serious health problems.
  • Even though strokes have become less common since TAVR started, they’re still a major concern because TAVR is being used more often.
  • New devices and treatments are being tested to help prevent CVEs, but current options may not reduce stroke risk enough, and there are concerns about bleeding from the medication used.
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Aneurysmal subarachnoid haemorrhage (SAH) is a devastating subset of stroke. One of the major determinants of outcome is an evolving multifactorial injury occurring in the first 72 hours, known as early brain injury. Reduced nitric oxide (NO) bioavailability and an associated disruption to cerebral perfusion is believed to play an important role in this process.

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Whole Blood Donor Iron Management Across Europe: Experiences and Challenges in Four Blood Establishments.

Transfus Med Rev

October 2024

Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.

Article Synopsis
  • Whole blood donation can lead to iron deficiency and anemia, prompting the need for effective iron management strategies among donors.
  • The review compares the approaches in England, Finland, the Netherlands, and Denmark, highlighting differences in hemoglobin measurement and iron supplementation practices for donors, with England showing higher deferral rates due to less frequent monitoring.
  • Overall, while there are various strategies in place, average hemoglobin levels are similar across the countries, indicating a need for further research to develop more tailored iron management solutions to improve donor safety and effectiveness in blood donation.
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The PIK3CA gene and its pivotal role in tumor tropism of triple-negative breast cancer.

Transl Oncol

December 2024

Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford, UK; Dorothy Crowfoot Hodgkin Building, Kavli Institute for Nanoscience Discovery, University of Oxford, Oxford, UK. Electronic address:

The PIK3CA gene is a linchpin in the intricate molecular network governing triple-negative breast cancer (TNBC) tumor tropism, serving as a focal point for understanding this aggressive disease. Anchored within the PI3K/AKT/mTOR signaling axis, PIK3CA mutations exert substantial influence, driving cellular processes that highlight the unique biology of TNBC. This review meticulously highlights the association between PIK3CA mutations and distinct TNBC subtypes, elucidating the gene's multifaceted contributions to tumor tropism.

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  • A study examining 9,300 heart failure patients in primary care revealed that 30.7% of them also had anemia, which is more prevalent in older patients, men, and those with kidney issues.
  • Anemia is linked to several serious comorbidities such as cancer, diabetes, and peripheral artery disease, with cancer showing a strong independent association.
  • Patients with anemia had a significantly worse prognosis, leading to higher risks of hospitalization and mortality compared to those without anemia.
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Anemia is highly prevalent globally, especially in young children in low-income countries, where it often overlaps with a high burden of diarrheal disease. Distribution of iron interventions (as supplements or iron-containing multiple micronutrient powders, MNPs) is a key anemia reduction strategy. Small studies in Africa indicate iron may reprofile the gut microbiome towards pathogenic species.

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Article Synopsis
  • N-terminal pro-B-type natriuretic peptides (NT-proBNPs) are important biomarkers for evaluating heart failure risk, but their levels can be misleading in patients with chronic kidney disease due to the kidney’s impact on eGFR.
  • This study aimed to analyze the relationship between NT-proBNP levels and cardiovascular outcomes, specifically hospitalizations and deaths, in heart failure patients with varying kidney function.
  • In a large cohort of over 14,000 patients, the results indicated that NT-proBNP levels significantly increased with lower eGFR levels, and every doubling of NT-proBNP was linked to a 37% higher risk of adverse cardiovascular outcomes.
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