63 results match your criteria: "University College London Hospitals National Health Service Foundation Trust[Affiliation]"

Stingray injury is common in temperate and tropical waters worldwide. The majority of injuries are minor and can be managed with simple first aid at the shoreline; however, serious complications can occur. We report a case of Vibrio alginolyticus wound infection, retained foreign body, and posterior tibial artery pseudoaneurysm after stingray envenomation in a returning traveler.

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Engineered cellular therapy with CD19-targeting chimeric antigen receptor T cells (CAR-Ts) has revolutionized outcomes for patients with relapsed/refractory large B-cell lymphoma (LBCL), but the cellular and molecular features associated with response remain largely unresolved. We analyzed serial peripheral blood samples ranging from the day of apheresis (day -28/baseline) to 28 days after CAR-T infusion from 50 patients with LBCL treated with axicabtagene ciloleucel by integrating single-cell RNA and T-cell receptor sequencing, flow cytometry, and mass cytometry to characterize features associated with response to CAR-T. Pretreatment patient characteristics associated with response included the presence of B cells and increased absolute lymphocyte count to absolute monocyte count ratio (ALC/AMC).

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Pediatric thrombotic thrombocytopenic purpura (TTP) is an ultrarare disease. Immune TTP (iTTP) is driven by anti-ADAMTS13 autoantibodies causing an imbalanced von Willebrand factor (VWF):ADAMTS13 axis, and rarer still in children, but potentially life-threatening. Caplacizumab is licensed for iTTP treatment in adults and adolescents aged ≥12 years who weigh ≥40 kg.

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Inflammation and coagulation are critical self-defense mechanisms for mitigating infection that can nonetheless induce tissue injury and organ dysfunction. In severe cases, like sepsis, a dysregulated thromboinflammatory response may result in multiorgan dysfunction. Sepsis-associated acute kidney injury (AKI) is a significant contributor to patient morbidity and mortality.

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The Tokyo 2020 and Beijing 2022 Olympic Games held during the COVID-19 pandemic: planning, outcomes, and lessons learnt.

Lancet

February 2024

Department of Infection, Division of Infection and Immunity, Centre for Clinical Microbiology, University College London, London, UK; National Institute for Health and Care Research Biomedical Research Centre, University College London Hospitals National Health Service Foundation Trust, London, UK.

The COVID-19 pandemic profoundly affected all mass gatherings for sporting and religious events, causing cancellation, postponement, or downsizing. On March 24, 2020, the Japanese Government, the Tokyo Organising Committee of the Olympic and Paralympic Games, and the International Olympic Committee decided to postpone the Tokyo 2020 Olympic and Paralympic Games until the summer of 2021. With the emergence of SARS-CoV-2, the potential creation of a superspreading event that would overwhelm the Tokyo health system was perceived as a risk.

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Small airway disease is an important pathophysiological feature of chronic obstructive pulmonary disease (COPD). Recently, "pre-COPD" has been put forward as a potential precursor stage of COPD that is defined by abnormal spirometry findings or significant emphysema on computed tomography (CT) in the absence of airflow obstruction. To determine the degree and nature of (small) airway disease in pre-COPD using microCT in a cohort of explant lobes/lungs.

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 An operative workflow systematically compartmentalizes operations into hierarchal components of phases, steps, instrument, technique errors, and event errors. Operative workflow provides a foundation for education, training, and understanding of surgical variation. In this Part 1, we present a codified operative workflow for the retrosigmoid approach to vestibular schwannoma resection.

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 An operative workflow systematically compartmentalizes operations into hierarchal components of phases, steps, instrument, technique errors, and event errors. Operative workflow provides a foundation for education, training, and understanding of surgical variation. In this Part 2, we present a codified operative workflow for the translabyrinthine approach to vestibular schwannoma resection.

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Article Synopsis
  • Cytomegalovirus (CMV) is a common infection that can occur after allogeneic hematopoietic cell transplant (alloHCT), and this study examines how changes in CMV-specific immune responses in the first month post-transplant can predict infection risk and mortality.
  • The study analyzed data from 226 alloHCT recipients, identifying key predictors of clinically significant CMV infection (CS-CMVi) such as decreased T-cell response to CMV antigens and factors like transplant type and use of corticosteroids.
  • Findings suggest that a decline in CMV-specific immune responses, particularly from week 2 to week 4 after transplant, is linked to a higher risk of CMV infection and increased overall mortality among
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Middle East respiratory syndrome coronavirus-a 10-year (2012-2022) global analysis of human and camel infections, genomic sequences, lineages, and geographical origins.

Int J Infect Dis

June 2023

Division of Infection and Immunity, Centre for Clinical Microbiology, University College London, London, United Kingdom; National Institute for Health and Care Research Biomedical Research Centre, University College London Hospitals National Health Service Foundation Trust, London, United Kingdom.

Objectives: The World Health Organization priority zoonotic pathogen Middle East respiratory syndrome (MERS) coronavirus (CoV) has a high case fatality rate in humans and circulates in camels worldwide.

Methods: We performed a global analysis of human and camel MERS-CoV infections, epidemiology, genomic sequences, clades, lineages, and geographical origins for the period January 1, 2012 to August 3, 2022. MERS-CoV Surface gene sequences (4061 bp) were extracted from GenBank, and a phylogenetic maximum likelihood tree was constructed.

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Analysis of thrombogenicity under flow reveals new insights into the prothrombotic state of patients with post-COVID syndrome.

J Thromb Haemost

January 2023

Institute of Cardiovascular Science, Haemostasis Research Unit, University College London (UCL), London, United Kingdom; Department of Haematology, University College London Hospitals National Health Service Foundation Trust, London, United Kingdom.

Background: Post-COVID syndrome (PCS) affects millions of people worldwide, causing a multitude of symptoms and impairing quality of life months or even years after acute COVID-19. A prothrombotic state has been suggested; however, underlying mechanisms remain to be elucidated.

Objectives: To investigate thrombogenicity in PCS using a microfluidic assay, linking microthrombi, thrombin generation, and the von Willebrand factor (VWF):a Disintegrin and Metalloproteinase with a Thrombospondin Type 1 motif, member 13 (ADAMTS13) axis.

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Disseminated intravascular coagulation (DIC) is a life-threatening complication in sepsis and other critical conditions. The International Society on Thrombosis and Haemostasis (ISTH) released the diagnostic criteria for overt DIC in 2001. Since then, ISTH overt DIC has been used as the global standard criterion for a decompensated stage of DIC.

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The diagnosis of Waldenström's macroglobulinemia (WM), an IgM-associated lymphoplasmacytic lymphoma, can be challenging due to the different forms of disease presentation. Furthermore, in recent years, WM has witnessed remarkable progress on the diagnostic front, as well as a deeper understanding of the disease biology, which has affected clinical practice. This, together with the increasing variety of tools and techniques available, makes it necessary to have a practical guidance for clinicians to perform the initial evaluation of patients with WM.

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Frailty, Comorbidity, and Associations With In-Hospital Mortality in Older COVID-19 Patients: Exploratory Study of Administrative Data.

Interact J Med Res

December 2022

Getting It Right First Time programme, National Health Service England and National Health Service Improvement, London, United Kingdom.

Background: Older adults have worse outcomes following hospitalization with COVID-19, but within this group there is substantial variation. Although frailty and comorbidity are key determinants of mortality, it is less clear which specific manifestations of frailty and comorbidity are associated with the worst outcomes.

Objective: We aimed to identify the key comorbidities and domains of frailty that were associated with in-hospital mortality in older patients with COVID-19 using models developed for machine learning algorithms.

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AZD7442 (Tixagevimab/Cilgavimab) for Post-Exposure Prophylaxis of Symptomatic Coronavirus Disease 2019.

Clin Infect Dis

April 2023

Vaccines and Immune Therapies, BioPharmaceuticals Research and Development, AstraZeneca, Gaithersburg, Maryland, USA.

Article Synopsis
  • A phase 3 trial evaluated the effectiveness of AZD7442 (tixagevimab/cilgavimab) as a post-exposure preventive treatment for COVID-19 in unvaccinated adults who had been exposed to the virus.
  • A total of 1,121 participants were enrolled, with 749 receiving AZD7442 and 372 receiving a placebo, showing mild-to-moderate adverse events mostly in the placebo group.
  • Although the study did not meet the primary goal of preventing symptomatic COVID-19 overall, it indicated that AZD7442 significantly reduced the risk of symptomatic infection in those who were confirmed to be virus-negative at the start of the trial.
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Background: As more health care organizations transition to using electronic health record (EHR) systems, it is important for these organizations to maximize the secondary use of their data to support service improvement and clinical research. These organizations will find it challenging to have systems capable of harnessing the unstructured data fields in the record (clinical notes, letters, etc) and more practically have such systems interact with all of the hospital data systems (legacy and current).

Objective: We describe the deployment of the EHR interfacing information extraction and retrieval platform CogStack at University College London Hospitals (UCLH).

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Therapies for cold agglutinin disease have been directed at the pathogenic B-cell clone. Sutimlimab, a monoclonal antibody that targets C1s, is the first complement inhibitor to be extensively studied in cold agglutinin disease. Sutimlimab selectively blocks the classical activation pathway and leaves the alternative and lectin pathways intact.

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Allergic Rhinitis in Childhood and the New EUFOREA Algorithm.

Front Allergy

July 2021

Klinik für Pädiatrie m.S. Pneumologie und Immunologie, Charite-Berlin, Berlin, Germany.

Allergic rhinitis in childhood has been often missed, mistreated and misunderstood. It has significant comorbidities, adverse effects upon quality of life and educational performance and can progress to asthma or worsen control of existing asthma. Accurate diagnosis and effective treatment are important.

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COVID-19 vaccination during pregnancy: coverage and safety.

Am J Obstet Gynecol

February 2022

Fetal Medicine Unit, St George's Hospital, St George's University of London, London, United Kingdom; Vascular Biology Research Centre, Molecular and Clinical Sciences Research Institute, St George's University of London, London, United Kingdom. Electronic address:

Background: Concerns have been raised regarding a potential surge of COVID-19 in pregnancy, secondary to the rising numbers of COVID-19 in the community, easing of societal restrictions, and vaccine hesitancy. Although COVID-19 vaccination is now offered to all pregnant women in the United Kingdom; limited data exist on its uptake and safety.

Objective: This study aimed to investigate the uptake and safety of COVID-19 vaccination among pregnant women.

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Background: The impact and consequences of the COVID-19 pandemic on people with rheumatic disease are unclear. We developed the COVID-19 Global Rheumatology Alliance Patient Experience Survey to assess the effects of the COVID-19 pandemic on people with rheumatic disease worldwide.

Methods: Survey questions were developed by key stakeholder groups and disseminated worldwide through social media, websites, and patient support organisations.

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Axial Spondyloarthritis: Mimics and Pitfalls of Imaging Assessment.

Front Med (Lausanne)

April 2021

Centre for Rheumatology & Department of Neuromuscular Diseases, University College London, London, United Kingdom.

Axial spondyloarthritis (axSpA) is a chronic inflammatory disorder that predominantly involves the axial skeleton. Imaging findings of axSpA can be divided into active changes, which include bone marrow edema, synovitis, enthesitis, capsulitis, and intra-articular effusion, and structural changes, which include erosions, sclerosis, bone fatty infiltration, fat deposition in an erosion cavity, and bone bridging or ankylosis. The ability to distinguish between imaging lesions suggestive of axSpA and artifacts or lesions suggestive of other disorders is critical for the accurate diagnosis of axSpA.

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