Publications by authors named "O'Regan S"

Purpose: To investigate the ophthalmic complications associated with spina bifida myelomeningocele (SBM) in Irish children and to evaluate the impact of spinal lesion levels and shunt status on visual outcomes.

Methods: A retrospective audit was conducted on 129 children with SBM, examining visual acuity, refractive errors, strabismus, papilledema, optic atrophy, and cortical visual impairment (CVI). The median age of participants was 6.

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This paper reports Cepstral Peak Prominence (CPP) values for normophonic English-speaking adults living in Ireland. A hundred vocally healthy adults (50 females, 50 males) aged 18-55 were audio recorded producing a series of speech tasks (sustained vowels, connected speech). Fifty-eight speakers in the 18-24 age group were recorded twice: remotely, using their mobile phones and onsite, in controlled recording setup.

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Article Synopsis
  • Chronic hepatitis B infection (CHB) affects 300 million people and is part of a global effort by the United Nations and WHO to eliminate it as a health threat by 2030.
  • Peer support workers (PSWs) are people who have experienced similar health issues and can help others by providing education and emotional support, especially for those with CHB.
  • Investing in peer support can help improve healthcare access, reduce stigma, and ultimately contribute to the goal of eliminating hepatitis B around the world.
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Corruption represents a complex problem firmly embedded within our societal structures, governments, and organizations. The current study aimed to build a clearer consensus on the extent to which perceptions of organizational corruption are associated with organizational hierarchy. Two high-powered close replications of studies 1c and 6 by Fath and Kay provide further evidence for the claim that taller organizational structures are associated with greater perceived potential for corruption, and that these perceptions may compromise subsequent trust-related outcomes.

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Objectives: To determine the percentage of patients across Ireland who are discharged from the Emergency Department (ED) with an antimicrobial prescription, the indication, classification of infections, and guideline compliance. To identify potential areas for antimicrobial stewardship (AMS) interventions in the ED.

Patients And Methods: A multicentre, prospective cohort analysis study in EDs across eight hospitals in Ireland.

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Objectives: We evaluated a hepatitis B virus (HBV) screening programme, delivered by a specialist pan-London multidisciplinary outreach team, to understand population characteristics and care cascade among people who experience extreme social exclusion (Inclusion Health (IH) groups).

Methods: Point-of-care HBV screening was performed in temporary accommodation for people experiencing homelessness (PEH) and people seeking asylum (initial accommodation centres, IACs) via a mobile unit staffed by peers with lived experience, nurses, and doctors. We analysed demographics and HBV characteristics of adults screened between May 2020 and January 2022.

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Background: In an earlier interview-based study the authors identified that learners experience one or more of eight explicit perceptual responses during the active phase of simulation-based training (SBT) comprising a sense: of belonging to instructor and group, of being under surveillance, of having autonomy and responsibility for patient management, of realism, of an understanding of the scenario in context, of conscious mental effort, of control of attention, and of engagement with task. These were adapted into a ten-item questionnaire: the Simulation Based Training Quality Assurance Tool (SBT-QA10) to allow monitoring of modifiable factors that may impact upon learners' experiences. This study assessed the construct validity evidence of the interpretation of the results when using SBT-QAT10.

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The prevention of safety incidents (SI) in health and social care settings is an ongoing undertaking. Limited research has been conducted on SIs outside of acute care. Internationally residential care facilities (RCFs) are typically regulated to promote quality and safeguarding.

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This case highlights the use of (1,3)-beta-d glucan to direct treatment of a cervical spinal cord Aspergillus fumigatus infection in a 22-year-old woman immunocompromised due to steroid and anti-TNF therapy in the context of ulcerative colitis and interferon gamma deficiency. A 4-year treatment course requiring neurosurgical intervention on four occasions and prolonged antifungal therapy, including isavuconazole, resulted in clinical cure with a corresponding decrease in CSF beta-d-glucan to <30 pg/mL. Serum and CSF galactomannan levels were not elevated at any point during the clinical course.

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: The current coronavirus disease 2019 (COVID-19) pandemic began in Ireland with the first confirmed positive case in March 2020. In the early stages of the pandemic clinicians and researchers in two affiliated Dublin hospitals identified the need for a COVID-19 biobanking initiative to support and enhance research into the disease. Through large scale analysis of clinical, regional, and genetic characteristics of COVID-19 patients, biobanks have helped identify, and so protect, at risk patient groups The STTAR Bioresource has been created to collect and store data and linked biological samples from patients with SARS-CoV-2 infection and healthy and disease controls.

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Objectives: To describe the development of an analyzable database of statutory notifications received from long-term care facilities (LTCFs) and to describe trends in receipt of notifications from 2013 to 2019.

Design: Description of database development with descriptive and trend analyses.

Setting And Participants: LTCFs for older persons and for people with disability in Ireland.

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Introduction: The degree of emotional activation required for optimal learning in either hands-on or observer roles is unclear, as is the level of stress that impedes learning. Measuring emotional activation is time-consuming, and many scales measure threat or anxiety without considering pleasurable activation. This study examined emotional activation in the observer and hands-on roles in 2 different scenario designs.

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Introduction: Health systems worldwide have had to prepare for a surge in volume in both the outpatient and inpatient settings since the emergence of COVID-19. Early international healthcare experiences showed approximately 80% of patients with COVID-19 had mild disease and therfore could be managed as outpatients. However, SARS-CoV-2 can cause a biphasic illness with those affected experiencing a clinical deterioration usually seen after day 4 of illness.

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Recent publications by Wehi and colleagues assert that Māori or other Polynesians in the pre-European era voyaged to and from the Antarctic. Such ideas have been advanced for more than a century, largely in relation to Rarotongan traditions translated by Percy Smith. As the juxtaposition of unexamined Polynesian traditions with historical archives is problematic for both historiography and matauranga Māori, an analytical approach is taken here to the traditional evidence.

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The majority of known early warning indicators of critical transitions rely on asymptotic resilience and critical slowing down. In continuous systems, critical slowing down is mathematically described by a decrease in magnitude of the dominant eigenvalue of the Jacobian matrix on the approach to a critical transition. Here, we show that measures of transient dynamics, specifically, reactivity and the maximum of the amplification envelope, also change systematically as a bifurcation is approached in an important class of models for epidemics of infectious diseases.

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Background: Simulation is reported as an appropriate replacement for a significant number of clinical hours in pregraduate programmes. To increase access for learners, educators have looked to understanding and improving learning in observer roles. Studies report equivalent learning outcomes and less stress in observer roles.

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Our understanding of ecological processes is built on patterns inferred from data. Applying modern analytical tools such as machine learning to increasingly high dimensional data offers the potential to expand our perspectives on these processes, shedding new light on complex ecological phenomena such as pathogen transmission in wild populations. Here, we propose a novel approach that combines data mining with theoretical models of disease dynamics.

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Background: Effective communication between patients-clinicians, supervisors-learners and facilitators-participants within a simulation is a key priority in health profession education. There is a plethora of frameworks and recommendations to guide communication in each of these contexts, and they represent separate discourses with separate communities of practice and literature. Finding common ground within these frameworks has the potential to minimise cognitive load and maximise efficiency, which presents an opportunity to consolidate messages, strategies and skills throughout a communication curriculum and the possibility of expanding the research agenda regarding communication, feedback and debriefing in productive ways.

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Article Synopsis
  • - Emerging and re-emerging pathogens are complex and challenging to predict, but new statistical methods based on dynamical systems and stochastic process theory are providing valuable insights into their dynamics.
  • - These methods suggest that pathogen emergence can be seen as a "critical transition," emphasizing the importance of understanding how systems change in response to various factors.
  • - By analyzing the fluctuations of a system near this critical point, researchers believe they can create early warning signals for predicting epidemics, as the behavior of perturbations slows down when approaching potential transitions.
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There are several methods to encourage bilateral and multidisciplinary collaborations-the most oft-used and effective include technical conferences, workshops, and seminars with the optimal combination of people, agenda, and length. However, this balance is difficult to attain, especially for meetings across academic disciplines and geographic borders. For nearly two decades, the US National Academies have developed a series of bilateral meetings to bring together scientists in different countries, which appear to have addressed such challenges via concise meetings with select emerging leaders from disparate fields and sectors.

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Many complex systems exhibit critical transitions. Of considerable interest are bifurcations, small smooth changes in underlying drivers that produce abrupt shifts in system state. Before reaching the bifurcation point, the system gradually loses stability ('critical slowing down').

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Anticipating critical transitions in spatially extended systems is a key topic of interest to ecologists. Gradually declining metapopulations are an important example of a spatially extended biological system that may exhibit a critical transition. Theory for spatially extended systems approaching extinction that accounts for environmental stochasticity and coupling is currently lacking.

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The neuromuscular junction (NMJ) is one of the best-studied cholinergic synapses. Inherited defects of peripheral neurotransmission result in congenital myasthenic syndromes (CMSs), a clinically and genetically heterogeneous group of rare diseases with fluctuating fatigable muscle weakness as the clinical hallmark. Whole-exome sequencing and Sanger sequencing in six unrelated families identified compound heterozygous and homozygous mutations in SLC5A7 encoding the presynaptic sodium-dependent high-affinity choline transporter 1 (CHT), which is known to be mutated in one dominant form of distal motor neuronopathy (DHMN7A).

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Mosquito-borne diseases contribute significantly to the global disease burden. High-profile elimination campaigns are currently underway for many parasites, e.g.

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