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Showing papers by "North Bristol NHS Trust published in 2023"


Journal ArticleDOI
TL;DR: In this article , an algebraic framework for the description and classification of reaction networks, types of elementary reaction, and chemical species is presented. But the framework is not suitable for the analysis of synthetic experimental data.

3 citations


Journal ArticleDOI
TL;DR: In this article , the effect of comprehensive geriatric assessment (CGA) on 1-year mortality in older adults with hip fracture was evaluated in a broader trauma population, where patients were divided into three cohorts: no, reactive, and proactive CGA.
Abstract: Objective: To evaluate the effect of geriatrician review on 1-year mortality in older adults admitted with trauma. Background: Comprehensive geriatric assessment (CGA) has been associated with improved outcomes in older adults with hip fracture, but has not been evaluated in a broader trauma population. Methods: Trauma patients aged ≥ 65years admitted to an English Major Trauma Centre between November 2018 and September 2019 were included. Patients were divided into 3 cohorts: no geriatric assessment, reactive geriatric assessment, and proactive CGA. The primary outcome was time to mortality, secondary outcomes were time to discharge and frequency of complications. Analyses were adjusted for factors known to be associated with outcomes including age, frailty, injury severity, and complications. Results: Five hundred eighty-five patients were included (no geriatric assessment = 125; reactive geriatric assessment = 134; proactive CGA = 326): median age was 81 years (IQR 74-88); 326 (55.7%) were women; 297 (50.8%) were living with frailty (Clinical Frailty Scale ≥5). Median Injury Severity Score was 13 (IQR9-25). At 1-year follow-up, 147 (25.1%) patients had died. In multivariate analysis, both types of geriatric assessment were associated with reduced mortality [reactive aHR = 0.31, 95% CI 0.18–0.53; proactive adjusted hazard ratio (aHR) = 0.41, 95% CI 0.26–0.64]. There was no association between either type of geriatric assessment and length of stay (reactive aHR = 0.84, 95% CI 0.62–1.15; proactive aHR = 0.80, 95% CI 0.63–1.02). Conclusions: Geriatrician assessment is associated with reduced mortality in older adults admitted following trauma. Further research should focus on defining optimal models of geriatrician intervention.

2 citations


Journal ArticleDOI
TL;DR: The role of ChatGPT, generative language models, and artificial intelligence in medical education was discussed in this article , where the authors highlight the potential impact of this technology on future anaesthetic practice.
Abstract: Editor—ChatGPT, a large language model form of artificial intelligence (AI) developed by OpenAI (https://openai.com/), has recently amassed more than 100 million users. 1 Eysenbach G. The role of ChatGPT, generative language models, and artificial intelligence in medical education: a conversation with ChatGPT and a call for papers. JMIR Med Educ. 2023; 9e46885 Google Scholar Even if readers have not used ChatGPT, they may be aware of recent headlines, including an open letter from industry leaders warning about the exponential progress towards developing highly intelligent systems and uncertainty about the risk posed to society. 2 Bengio Y. Russell S. Musk E. et al. Pause giant AI experiments: an open letter. 2023https://futureoflife.org/open-letter/pause-giant-ai-experimentsDate accessed: April 6, 2023 Google Scholar We wish to highlight the potential impact of this technology on future anaesthetic practice.

2 citations




Journal ArticleDOI
TL;DR: In this paper , the authors compared the risks of re-revision and mortality between two-stage and single-stage revision surgeries among patients with infected primary hip arthroplasty.
Abstract: We compared the risks of re-revision and mortality between two-stage and single-stage revision surgeries among patients with infected primary hip arthroplasty. Patients with a periprosthetic joint infection (PJI) of their primary arthroplasty revised with single-stage or two-stage procedure in England and Wales between 2003 and 2014 were identified from the National Joint Registry. We used Poisson regression with restricted cubic splines to compute hazard ratios (HRs) at different postoperative periods. The total number of revisions and re-revisions undergone by patients was compared between the two strategies. In total, 535 primary hip arthroplasties were revised with single-stage procedure (1,525 person-years) and 1,605 with two-stage procedure (5,885 person-years). All-cause re-revision was higher following single-stage revision, especially in the first three months (HR at 3 months = 1.98 (95% confidence interval (CI) 1.14 to 3.43), p = 0.009). The risks were comparable thereafter. Re-revision for PJI was higher in the first three postoperative months for single-stage revision and waned with time (HR at 3 months = 1.81 (95% CI 1.22 to 2.68), p = 0.003; HR at 6 months = 1.25 (95% CI 0.71 to 2.21), p = 0.441; HR at 12 months = 0.94 (95% CI 0.54 to 1.63), p = 0.819). Patients initially managed with a single-stage revision received fewer revision operations (mean 1.3 (SD 0.7) vs 2.2 (SD 0.6), p < 0.001). Mortality rates were comparable between these two procedures (29/10,000 person-years vs 33/10,000). The risk of unplanned re-revision was lower following two-stage revision, but only in the early postoperative period. The lower overall number of revision procedures associated with a single-stage revision strategy and the equivalent mortality rates to two-stage revision are reassuring. With appropriate counselling, single-stage revision is a viable option for the treatment of hip PJI.


Journal ArticleDOI
TL;DR: Wolters Kluwer Health may email you for journal alerts and information, but is committed to maintaining your privacy and will not share your personal information without your express consent as mentioned in this paper .
Abstract: Log in or Register Subscribe to journalSubscribe Get new issue alertsGet alerts Enter your Email address: Wolters Kluwer Health may email you for journal alerts and information, but is committed to maintaining your privacy and will not share your personal information without your express consent. For more information, please refer to our Privacy Policy. Subscribe to eTOC Secondary Logo Journal Logo All Articles Images Videos Podcasts Blogs Advanced Search Toggle navigation Subscribe Register Login Articles & Issues Current IssuePrevious IssuesPublished Ahead-of-Print For Authors Submit a ManuscriptInformation for AuthorsLanguage Editing ServicesAuthor PermissionsLippincott® Preprints Journal Info About the JournalEditorial BoardAdvertisingOpen AccessSubscription ServicesReprintsRights and Permissions All Articles Images Videos Podcasts Blogs Advanced Search

Journal ArticleDOI
TL;DR: In this paper , the authors present a protocol for a dose-finding study using esmolol in adults, which commenced within 24 hours of severe traumatic brain injury and concluded with a clinically significant reduction in heart rate as a surrogate for catecholamine drive with maintenance of cerebral perfusion pressure.
Abstract: Abstract Traumatic brain injury is a leading cause of death and disability worldwide. Interventions that mitigate secondary brain injury have the potential to improve outcomes for patients and reduce the impact on communities and society. Increased circulating catecholamines are associated with worse outcomes and there are supportive animal data and indications in human studies of benefit from beta-blockade after severe traumatic brain injury. Here, we present the protocol for a dose-finding study using esmolol in adults commenced within 24 h of severe traumatic brain injury. Esmolol has practical advantages and theoretical benefits as a neuroprotective agent in this setting, but these must be balanced against the known risk of secondary injury from hypotension. The aim of this study is to determine a dose schedule for esmolol, using the continual reassessment method, that combines a clinically significant reduction in heart rate as a surrogate for catecholamine drive with maintenance of cerebral perfusion pressure. The maximum tolerated dosing schedule for esmolol can then be tested for patient benefit in subsequent randomized controlled trials. Trial registration ISRCTN, ISRCTN11038397, registered retrospectively 07/01/2021 https://www.isrctn.com/ISRCTN11038397