12,859 results match your criteria: "St Thomas' hospital[Affiliation]"

The demand for aesthetic surgery continues to increase, and it is therefore essential to ensure that the next generation of plastic surgeons are adequately trained. We propose a safe method in aesthetic training in abdominoplasty and facelift, utilizing free deep inferior epigastric perforator (DIEP) flap and parotidectomy for training aesthetic procedures. The trainees' focus differed between the 2 procedures.

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Compact and cGMP-compliant automated synthesis of [F]FSPG on the Trasis AllinOne™.

EJNMMI Radiopharm Chem

January 2025

School of Biomedical Engineering & Imaging Sciences, King's College London, St Thomas' Hospital, London, SE1 7EH, UK.

Background: (S)-4-(3-F-Fluoropropyl)-ʟ-glutamic acid ([F]FSPG) is a positron emission tomography radiotracer used to image system x, an antiporter that is upregulated in several cancers. Not only does imaging system x with [F]FSPG identify tumours, but it can also provide an early readout of response and resistance to therapy. Unfortunately, the clinical production of [F]FSPG has been hampered by a lack of robust, cGMP-compliant methods.

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Background: The effect of worsening renal function and baseline chronic kidney disease (CKD) on outcomes in patients with chronic coronary syndrome in the setting of optimal medical therapy remains unknown.

Methods And Results: The REAL-CAD (Randomized Evaluation of Aggressive or Moderate Lipid Lowering Therapy With Pitavastatin in Coronary Artery Disease) study is a prospective, multicenter, randomized trial of high-dose (pitavastatin 4 mg/day) or low-dose (pitavastatin 1 mg/day) statin therapy in 12 118 patients with chronic coronary syndrome. The primary end point was a composite of cardiovascular death, nonfatal myocardial infarction, stroke, or unstable angina requiring hospitalization (major adverse cardiac and cerebral events [MACCE]).

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Quantification of heavy metal exposure in a British population cohort links total mercury levels in plasma with skin tissue-specific changes in mitochondrial-related gene expression.

Sci Total Environ

January 2025

Department of Twin Research and Genetic Epidemiology, King's College London, 3-4th Floor South Wing Block D, St Thomas' Hospital, Westminster Bridge Road, London SE1 7EH, UK. Electronic address:

Heavy metals in our direct environment have profound effects on human health and while some are essential for life, others can be toxic. In vivo studies often focus on clinical features caused by overexposure to, or by deprivation of a heavy metal. However, to understand the cellular impact of heavy metals on health, studies in healthy volunteers before symptom onset are needed.

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Introduction: Fibromyalgia has a high female predominance and research work has been focussing mainly on women.

Objectives: We aimed to answer (1) gender differences in pain scores and quality of life, (2) any gender-specific subgroups defined by quantitative sensory testing (QST), and (3) correlations of QST parameters with pain intensity and questionnaire scores.

Methods: We evaluated clinical presentations and QST profiles from 38 male and 38 age-matched female patients.

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Background: Rapid identification of individuals with acute respiratory infections is crucial for preventing nosocomial infections. For rapid diagnosis, especially in EDs, lateral flow devices (LFDs) are a convenient, inexpensive option with a rapid turnaround. Several 'multiplex' LFDs (M-LFDs) now exist, testing for multiple pathogens from a single swab sample.

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Assessment of the thymus in fetuses prior to spontaneous preterm birth using functional MRI.

Early Hum Dev

January 2025

Department of Women and Children's Health, St Thomas' Hospital, King's College London, London, UK; Department of Perinatal Imaging, St Thomas' Hospital, King's College London, London, UK.

Objectives: The aim of this study was to utilise T2* relaxometry (an indirect method of quantifying tissue oxygenation) to assess the fetal thymus in uncomplicated pregnancies throughout gestation and in a cohort of fetuses that subsequently deliver very preterm.

Methods: A control group of participants with low-risk pregnancies were recruited and retrospectively excluded if they developed any pregnancy related complications after scanning. Participants were recruited who were deemed to be at very high risk of delivery prior to 32 weeks' gestation and retrospectively excluded if they did not deliver prior to this gestation.

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Toward Replacing Contrast Agents in Prostate MRI Using Generative Artificial Intelligence.

Radiology

January 2025

From the School of Biomedical Engineering and Imaging Sciences, King's College London, St. Thomas' Hospital, Westminster Bridge Road, Lambeth Wing, 3rd Fl, London SE1 7EH, UK.

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Transcatheter aortic valve repair (TAVR) presents a minimally invasive alternative to traditional surgical valve replacement, albeit not without its own set of complications. A rare complication is the infolding of the self-expanding valve, which can precipitate cardiac arrest. The estimated incidence rate of this complication stands at 1.

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Purpose: To evaluate the intraocular pressure (IOP)-lowering effect and safety of up to two bimatoprost implant administrations versus selective laser trabeculoplasty (SLT).

Design: Phase 3 (Stage 2), randomized, 24-month, multicenter, patient- and efficacy evaluator-masked, paired-eye clinical trial (NCT02507687).

Participants: Patients (n=183) with open-angle glaucoma or ocular hypertension inadequately managed with topical IOP-lowering medication for reasons other than efficacy.

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The potential of large language models (LLMs) in medical applications is significant, and Retrieval-augmented generation (RAG) can address the weaknesses of these models in terms of data transparency and scientific accuracy by incorporating current scientific knowledge into responses. In this study, RAG and GPT-4 by OpenAI were applied to develop GuideGPT, a context aware chatbot integrated with a knowledge database from 449 scientific publications designed to provide answers on the prevention, diagnosis, and treatment of medication-related osteonecrosis of the jaw (MRONJ). A comparison was made with a generic LLM ("PureGPT") across 30 MRONJ-related questions.

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DNA-binding affinity and specificity determine the phenotypic diversity in BCL11B-related disorders.

Am J Hum Genet

January 2025

Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany; Institute of Human Genetics, University of Regensburg, 93053 Regensburg, Germany; Institute of Clinical Human Genetics, University Hospital Regensburg, 93053 Regensburg, Germany. Electronic address:

BCL11B is a Cys2-His2 zinc-finger (C2H2-ZnF) domain-containing, DNA-binding, transcription factor with established roles in the development of various organs and tissues, primarily the immune and nervous systems. BCL11B germline variants have been associated with a variety of developmental syndromes. However, genotype-phenotype correlations along with pathophysiologic mechanisms of selected variants mostly remain elusive.

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A variety of medical specialities undertake percutaneous drainage but understanding of device performance outside radiology is often limited. Furthermore, the current catheter sizing using the "French" measurement of outer diameter is unhelpful; it does not reflect the internal diameter and gives no information on flow rate. To illustrate this and to improve catheter selection, notably for chest drainage, we assessed the variation of drain performance under standardised conditions.

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Background: Acute type A aortic dissection is a life-threatening clinical emergency that necessitates immediate surgical intervention with an estimated mortality rate of approximately 1-2% per hour. When complicated by malperfusion, the perioperative mortality rate is reported to be increased by up to 39%. Malperfusion can affect many vascular beds with varying incidence and severity, resulting in coronary, cerebral, visceral, peripheral, renal or spinal malperfusion.

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Background: In African populations, estimated glomerular filtration rate by cystatin C (eGFRcys) is better aligned with gold-standard GFR measurements than eGFR by creatinine (eGFRcr). Moreover, eGFRcys is unaffected by the effects of antiretroviral therapy (ART) on tubular secretion and may thus provide better estimates of GFR in people with HIV on ART.

Setting: Observational cohort study of people of African ancestry living with suppressed HIV RNA on ART in London, United Kingdom.

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Background: Autologous breast reconstruction patients require thorough assessment, with the profunda femoris artery perforator (PAP) flap having become an important autologous reconstruction option alongside the deep inferior epigastric perforator (DIEP) flap. Breast reconstruction impacts patients psychologically, physically and mentally. The BREAST-Q aids in the assessment of patient-reported outcome measures (PROMs).

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Using joint genomic-transcriptomic analysis of 243 samples, we reveal recurrent patterns of nongenetic evolution in ccRCC not exclusively governed by genetic factors, including T-cell depletion, tumor T-cell receptor coevolution, potential cGAS-STING repression, and increased cell proliferation. These patterns can aid clinical management and guide novel treatment approaches.

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Realizing the Untapped Potential of Stress Perfusion CMR in Medicare's Aging Population.

JACC Cardiovasc Imaging

January 2025

School of Biomedical Engineering and Imaging Sciences, King's College London, Guy's and St Thomas' Hospital, London, United Kingdom; Cardio-Oncology Centre of Excellence, Royal Brompton Hospital, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom.

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Objective: Etrasimod is an oral, once-daily, selective sphingosine 1-phosphate (S1P) receptor modulator for the treatment of moderately to severely active ulcerative colitis (UC). S1P receptor expression on cardiac cells is involved in cardiac conduction. We report cardiovascular treatment-emergent adverse events (TEAEs) associated with S1P receptor modulators and other cardiovascular events in the etrasimod UC clinical programme.

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Introduction: Cancer complicates approximately 1 in 2000 pregnancies, with increasing incidence due to factors such as increased maternal age, obesity and advancements in antenatal testing. Anaesthetists play a crucial role in managing pregnant patients with cancer, both during delivery and in providing anaesthesia for oncological treatments. This review explores the challenges in anaesthetic management and specific considerations for common cancers encountered in pregnant patients.

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Automated craniofacial biometry with 3D T2w fetal MRI.

PLOS Digit Health

December 2024

Department of Early Life Imaging, School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, London, United Kingdom.

Objectives: Evaluating craniofacial phenotype-genotype correlations prenatally is increasingly important; however, it is subjective and challenging with 3D ultrasound. We developed an automated label propagation pipeline using 3D motion- corrected, slice-to-volume reconstructed (SVR) fetal MRI for craniofacial measurements.

Methods: A literature review and expert consensus identified 31 craniofacial biometrics for fetal MRI.

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Self-supervised parametric map estimation for multiplexed PET with a deep image prior.

Phys Med Biol

January 2025

The Division of Imaging Sciences and Biomedical Engineering, King's College London, 5th Floor Becket House, London, SE1 7EH, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND.

Multiplexed positron emission tomography (mPET) imaging allows simultaneous observation of physiological and pathological information from multiple tracers in a single PET scan. Although supervised deep learning has demonstrated superior performance in mPET image separation compared to purely model-based methods, acquiring large amounts of paired single-tracer data and multi-tracer data for training poses a practical challenge and needs extended scan durations for patients. In addition, the generalisation ability of the supervised learning framework is a concern, as the patient being scanned and their tracer kinetics may potentially fall outside the training distribution.

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