Publications by authors named "Joshua Au Yeung"

Article Synopsis
  • The review emphasizes the necessity of integrating machine learning workflows into hospital settings to align with clinical practices and real-world data.
  • The paper discusses the development and implementation of a novel clinical NLP service within the UK's National Health Service, focusing on creating a framework to incorporate expert clinical insight into NLP models.
  • The project has generated over 26,000 annotations and demonstrated various clinical uses of named entity recognition, suggesting that NLP services will soon be essential in healthcare.
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Background: An electronic health record (EHR) holds detailed longitudinal information about a patient's health status and general clinical history, a large portion of which is stored as unstructured, free text. Existing approaches to model a patient's trajectory focus mostly on structured data and a subset of single-domain outcomes. This study aims to evaluate the effectiveness of Foresight, a generative transformer in temporal modelling of patient data, integrating both free text and structured formats, to predict a diverse array of future medical outcomes, such as disorders, substances (eg, to do with medicines, allergies, or poisonings), procedures, and findings (eg, relating to observations, judgements, or assessments).

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Artificial intelligence (AI) is routinely mentioned in journals and newspapers, and non-technical outsiders may have difficulty in distinguishing hyperbole from reality. We present a practical guide to help non-technical neurologists to understand healthcare AI. AI is being used to support clinical decisions in treating neurological disorders.

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As foundation doctors, we have often found ourselves informing patients that a certain aspect of their medical information cannot be immediately found, either because it is on an electronic system we cannot access, or it is in a hospital that is unlinked to our own. Unsurprisingly, this frequently leaves patients flabbergasted and confused. We started to wonder: if patients' data are entered onto an electronic system: where do those data go? If medical data are searched for, where do those data come from? Why are there so many hidden sources of information that clinicians cannot access? In an ever-increasing digital sphere, electronic data will be the future of holistic health and social care planning, impacting every clinician's day-to-day role.

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As large language models (LLMs) expand and become more advanced, so do the natural language processing capabilities of conversational AI, or "chatbots". OpenAI's recent release, ChatGPT, uses a transformer-based model to enable human-like text generation and question-answering on general domain knowledge, while a healthcare-specific Large Language Model (LLM) such as GatorTron has focused on the real-world healthcare domain knowledge. As LLMs advance to achieve near human-level performances on medical question and answering benchmarks, it is probable that Conversational AI will soon be developed for use in healthcare.

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Following a minor meniscal injury to his right knee, a previously fit and well 58-year-old man developed profound somatisation leading to paraplegia. The patient developed a deep-seated belief that any exercise or walking would cause irreparable damage to his knee. Over the course of 2 years his, mobility reduced from active mountaineering to walking a short distance, and finally to paraplegia.

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Background And Purpose: With the increasing adoption of electronic records in the health system, machine learning-enabled techniques offer the opportunity for greater computer-assisted curation of these data for audit and research purposes. In this project, we evaluate the consistency of traditional curation methods used in routine clinical practice against a new machine learning-enabled tool, MedCAT, for the extraction of the stroke comorbidities recorded within the UK's Sentinel Stroke National Audit Programme (SSNAP) initiative.

Methods: A total of 2327 stroke admission episodes from three different National Health Service (NHS) hospitals, between January 2019 and April 2020, were included in this evaluation.

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Aims: To test if 6 months' intervention with dietary nitrate and spironolactone could affect carotid subclinical atherosclerosis and stiffness, respectively, vs. placebo/doxazosin, to control for blood pressure (BP).

Methods: A subgroup of participants in our double-blind, randomized-controlled, factorial VaSera trial had carotid imaging.

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McMurray JJV, Solomon SD, Inzucchi SE, Dapagliflozin in patients with heart failure and reduced ejection fraction. 2019;381:1995-2008. Dr Joshua Au Yeunga, Clinical Pharmacology, St Thomas' Hospital, London, UK and Dr Teck Khong, Clinical Pharmacology, St George's, University of London, UK.

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I present an uncommon case of recurrent, intractable anxiety that was presented acutely and slowly evolved into a chronic debilitating condition. A young previously fit and healthy 24-year-old patient presents with somewhat atypical symptoms of anxiety. Full medical work-up including examination, blood, ECG electrocardiogram, electroencephalogram and CT of the head was unremarkable.

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