34,514 results match your criteria: "Guy's & St Thomas' Hospital NHS Trust[Affiliation]"

Article Synopsis
  • The anti-WNT factor ZNRF3 is crucial for determining gonadal sex, as XY mice lacking it show variable ovarian tissue development during fetal stages.
  • Researchers used single-cell RNA sequencing to investigate how ZNRF3 deficiency affects cell development in the gonads, revealing failures in the proper differentiation of Sertoli and granulosa cells.
  • The study finds that without ZNRF3, there is significant disruption in the expected testicular cell fate, leading to a mix of cellular identities that complicate the traditional understanding of sexual differentiation.
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  • Clinical guidelines recommend using buffered crystalloid solutions for critically ill patients, but do not specify which type, prompting a survey of physicians' preferences between acetate- and lactate-buffered solutions.* -
  • An international survey of 1321 anesthesiologists and ICU physicians found that the majority used these solutions frequently, with varying availability of both types across different countries.* -
  • Most physicians supported a randomized trial comparing the two solutions, rating its clinical importance as significant, but not urgent, with a median score of 5 out of 9.*
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Objectives: To compare the performance and optimal combination of MRI descriptors used for the diagnosis of Ménière's disease (MD) between a real-IR sequence with "zero-point" endolymph (ZPE), and an optimised real-IR sequence with negative signal endolymph (NSE).

Materials And Methods: This retrospective single-centre cross-sectional study evaluated delayed post-gadolinium ZPE and NSE real-IR MRI in consecutive patients with Ménièriform symptoms (8/2020-10/2023). Two observers assessed 14 MRI descriptors.

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  • Mind The Bleep (MTB) is an online educational platform run by UK resident doctors, focusing on providing free surgical education resources for early postgraduate doctors, especially during the COVID-19 pandemic.
  • The study assessed MTB's teaching methods using a mix of quantitative and qualitative data, including participant feedback and website analytics, analyzing 22 educational programs and 140 webinars conducted between 2021 and 2024.
  • Results showed significant increases in participant confidence (p<0.05) and highlighted the effectiveness of a near-peer teaching model, although limitations included a low feedback response rate and limited types of feedback collected.
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Recent published data have highlighted the importance of epigenetics in the response of the skin to recreational and therapeutic ultraviolet radiation (UVR) exposure. 'Epi'-from the Greek επί, meaning over, outside of or around-relates to the chemical modifications that occur on top of the DNA sequence (for example, DNA methylation) and its associated proteins (e.g.

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Despite the prevalence of sequencing data in biomedical research, the methylome remains underrepresented. Given the importance of DNA methylation in gene regulation and disease, it is crucial to address the need for reliable differential methylation methods. This work presents a novel, transferable approach for extracting information from DNA methylation data.

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Simultaneous non-contrast assessment of cardiac microstructure and perfusion in vivo in the human heart.

J Cardiovasc Magn Reson

November 2024

National Heart and Lung Institute, Imperial College London, London, UK; Royal Brompton and Harefield Hospitals, Guy's and St Thomas' NHS Foundation Trust, London, UK.

Article Synopsis
  • Intravoxel incoherent motion (IVIM) imaging traditionally has low sensitivity in measuring heart perfusion, prompting the development of a more effective stimulated-echo (STEAM) method for better assessment of cardiac microstructure and perfusion.
  • The new STEAM-IVIM technique collects data at 20 different b-values and 6 diffusion directions, allowing thorough analysis of heart tissue in 20 healthy individuals.
  • The results indicate high-quality imaging with promising IVIM parameters and diffusion tensor metrics, suggesting that this method can detect abnormalities in heart microstructure and perfusion without needing contrast agents.
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Background: Microsurgical nasal replantation is a rare yet important procedure in order to regain the respiratory, olfactory, and aesthetic features of the nose. However, due to the traumatic nature of most nasal amputations, appropriate veins for anastomosis are difficult to find- complicating replantation. This is the first systematic review that compares peri operative and post-operative outcomes in arterial only versus arterial and venous anastomosis for nasal replantation.

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Interventions to prevent surgical site infection in adults undergoing cardiac surgery.

Cochrane Database Syst Rev

December 2024

Department of Cardiovascular Sciences, University of Leicester, Leicester, UK.

Article Synopsis
  • * It outlines the objectives of a study aimed at assessing the effectiveness of various interventions before, during, and after surgery to prevent SSIs and evaluate their impact on patient outcomes.
  • * The study includes a comprehensive search for randomized controlled trials (RCTs) related to SSI prevention in adult cardiac surgery and aims to establish a clearer standard of care for managing these infections.
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Background: Critical care of patients on extracorporeal membrane oxygenation (ECMO) with acute brain injury (ABI) is notable for a lack of high-quality clinical evidence. Here, we offer guidelines for neurological care (neurological monitoring and management) of adults during and after ECMO support.

Methods: These guidelines are based on clinical practice consensus recommendations and scientific statements.

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Introduction: In the UK, mental disorders are one of the most common reasons for claiming a benefit relating to unemployment, income, sickness and disability. Limited information exists regarding the demographic characteristics and psychiatric profiles of working age individuals claiming benefits in London. Until recently, detailed data on both mental disorders and benefit receipt were unavailable.

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Introduction Outpatient appointments are essential to patient care, yet rising non-attendance rates ('did not attend' DNAs) pose significant challenges, costing the National Health Service (NHS) over £1 billion annually. Traditional postal communication is inefficient and costly, while digital methods like short messaging service (SMS) and electronic mail (email) show the potential to improve attendance and reduce costs. This study investigates changes in patient preferences for orthopaedic outpatient communication methods between 2019 and 2024 at a busy district general hospital in London, UK.

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Targeted anti-cancer agents and risk of venous thromboembolism.

Haematologica

December 2024

Department of Haemostasis and Thrombosis, Guy's and St Thomas' NHS Foundation Trust, King's College London, London.

The incidence of one-year venous thromboembolism (VTE) after cancer diagnosis is reported to be increasing for several types of cancer. The introduction of targeted anti-cancer therapies and immunotherapy into the therapeutic armamentarium of medical oncologists contributed to the significantly improved response rates and survival times of cancer patients. In recent years, a potential prothrombotic effect of several targeted anti-cancer agents and immunotherapy drugs has been suggested; however, the methodological limitations of clinical trials evaluating the possible role of these classes of drugs on the VTE risk often make the interpretation of their results difficult.

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Article Synopsis
  • The audit aimed to assess and improve the completeness and accuracy of the National Joint Registry (NJR) dataset specifically for elbow arthroplasty surgeries.
  • In a two-phase approach, Phase 1 compared NJR data with NHS England Hospital Episode Statistics (HES), identifying thousands of unmatched and inaccurate records, particularly for radial head arthroplasties (RHAs).
  • Phase 2 involved collaboration among 142 NHS hospitals to correct and update records, resulting in an improved completeness of the NJR dataset from 63% to 93% and accuracy from 94% to 98%.
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Simulation training has been growing in popularity, as a means to help supplement the training of surgical residents. The Newcastle Surgical Training Centre K-wiring course, a 1-day course designed for early-years surgical trainees, aims to teach essential skills in K-wire fixation for hand fractures. The course integrates lectures and hands-on practice with both simulated and cadaveric specimens, supported by a high faculty-to-delegate ratio.

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Assessment of Debris Apical Extrusion, Unprepared Surface Areas, and Dentinal Crack Formation after Root Canal Preparation Using ProTaper Next, ProTaper Ultimate, and R-Motion File Systems.

J Endod

November 2024

Department of Endodontics, Centre of Oral Clinical & Translational Sciences, Faculty of Dentistry, Oral & Craniofacial Sciences, Guy's Dental Hospital, King's College London, London, UK.

Introduction: This study evaluated and compared the amount of apically extruded debris, unprepared wall surface areas, and dentinal crack formation resulting from root canal preparation using ProTaper Next (PTN), ProTaper Ultimate (PTU), and R-Motion (RM) file systems.

Methods: Forty-five palatal roots of maxillary first molars were shortened to a uniform length of 12 mm. The samples were divided randomly into 3 groups (n = 15/group) to be prepared using either PTN, PTU, and RM file systems.

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Treating eosinophilic exacerbations of asthma and COPD with benralizumab (ABRA): a double-blind, double-dummy, active placebo-controlled randomised trial.

Lancet Respir Med

January 2025

Nuffield Department of Medicine, University of Oxford, Oxford, UK; King's Centre for Lung Health, School of Immunology and Microbial Sciences, King's College London, London, UK. Electronic address:

Background: Exacerbations of asthma and chronic obstructive pulmonary disease (COPD) are important events and are associated with critical illness. Eosinophilic inflammation is a treatable trait commonly found during acute exacerbations of asthma and COPD. We hypothesised that for patients with eosinophilic exacerbations, a single injection of benralizumab, a humanised monoclonal antibody against interleukin-5 receptor-α, alone or in combination with prednisolone, will improve clinical outcomes compared with prednisolone, the standard of care.

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A Systematic Review of Simulation-Based Training Tools in Plastic Surgery.

J Surg Educ

January 2025

MRC Centre for Transplantation, Guy's Hospital, King's College London, London, United Kingdom. Electronic address:

Objectives: The recent shift from traditional surgical teaching to the incorporation of simulation training in plastic surgery has resulted in the development of a variety of simulation models and tools. We aimed to assess the validity and establish the effectiveness of all currently available simulators and tools for plastic surgery.

Design: Systematic review.

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