Publications by authors named "Greaves N"

Objective: Lower extremity arterial disease (LEAD) is a prevalent condition that produces a significant burden on health care systems. Patients with LEAD have an increased risk of major adverse cardiovascular events as well as major adverse limb events. Despite significant variation in guidance on antiplatelet therapy for LEAD worldwide, many governing bodies recommend clopidogrel as the preferred single anti-platelet agent.

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Pharmacogenetic-guided prescribing can lead to more accurate medicine selection and dosing, improving patient outcomes and leading to better use of health care budgets. Loss-of-function variants in CYP2C19 influence an individual's ability to metabolize clopidogrel, increasing the risk of secondary vascular events following ischemic stroke and percutaneous coronary intervention. In acute clinical contexts, centralized laboratory-based testing is too slow to inform timely clinical decision-making.

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Data sharing increasingly underpins collaborative research to address complex regional and global public health problems. Advances in analytic tools, including machine learning, have expanded the potential benefits derived from large global repositories of open data. Participating in open data collaboratives offers opportunities for Caribbean researchers to advance the health of the region's population through shared data-driven science and policy.

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Background: Pharmacogenetic guided prescribing can be used to improve the safety and effectiveness of medicines. There are several approaches by which this intervention might be implemented in clinical practice, which will vary depending on the health system and clinical context.

Aim: To understand the clinical utility of panel-based pharmacogenetic testing in patients admitted acutely to hospital and to establish variables which predict if an individual might benefit from the intervention.

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Objective: The aim of this study is to develop a systems thinking framework to describe the common complexities of childhood obesity in the Caribbean region and identify potential areas of intervention.

Methods: Group model building (GMB) is a form of systems science. Trained GMB facilitators in Puerto Rico, the US Virgin Islands, Barbados, and Trinidad and Tobago convened a group of multi-disciplinary stakeholders in a series of virtual meetings in 2021 to elaborate a hypothesis of the system driving childhood obesity represented by causal loop diagrams (CLD).

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Purpose: This study explored medical educators' understanding of the term transgender and their attitudes and perspectives regarding (1) health system responsiveness to transgender needs and (2) transgender curriculum in medical education.

Methods: The study employed purposive sampling of medical educators responsible for design and delivery of curriculum. Fifteen of 18 eligible educators participated in Zoom focus groups (FG1 =7, FG2 =8).

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Introduction: Learning style (LS) frameworks have been implemented by educators to promote participatory learning in order to strengthen learner engagement and to enhance learning outcomes. Self-efficacy has been shown to have an association with learning style and is a predictor of clinical performance and other qualities in medical students. This study examined the perspectives of second and final year medical students in a Caribbean-based medical school, relative to their learning approaches, teaching exposures and preparation for assessments.

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Purpose: Diabetes mellitus (diabetes) is a major health concern in Barbados. In 2013, the reported prevalence (18.7%) was double global levels, with diabetes accounting for 10.

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Mental health professionals (MHPs) have roles supporting mitigation, preparation, and recovery in the global climate crisis. This commentary describes initiatives in the Caribbean to address climate-related threats to individuals and communities focussing on the role of MHPs in supporting community-based projects, regional public health disaster responses, and climate research.

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The climate and ecological crisis will constitute the defining public health challenge of the twenty-first century, posing an unprecedented global threat to all determinants of health, and to healthcare delivery systems. We believe that mental health professionals have a crucial role to play in responding to this crisis. Whilst responding to the mental health consequences of the climate crisis will remain a key role for us as mental health professionals, we argue that our remit goes beyond this, and should include advancing public understanding of the climate crisis, highlighting its impact on physical and mental wellbeing, and advocating for systemic changes to limit its impending harms.

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The aim of this paper is to share our experiences of engaging with the climate crisis as citizens and mental health professionals (MHPs). We hope the outputs will usefully validate the experiences of fellow MHPs and support them to reflect on their role in this crisis. We came together as eight MHPs, participating in group discussions and one-one interviews with the first author to reflect on our experiences.

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Purpose: The COVID-19 pandemic has caused significant disruption to medical education and clinical training and resulted in stressors that impede student learning. This study aimed to assess student satisfaction and self-efficacy in a novel online clinical clerkship curriculum delivered during the COVID-19 pandemic.

Methods: Fourth- and fifth-year medical students completed an online survey in January 2021 covering the following areas: student satisfaction, self-efficacy, and perceived effectiveness of online versus face-to-face learning.

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Background: Intracerebral haemorrhage (ICH) accounts for 10%-15% of strokes in the UK, but is responsible for half of all annual global stroke deaths. The ABC bundle for ICH was developed and implemented at Salford Royal Hospital, and was associated with a 44% reduction in 30-day case fatality. Implementation of the bundle was scaled out to the other hyperacute stroke units (HASUs) in the region from April 2017.

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Background: The Barbados Diabetes Remission Study-2 reported that a low-calorie diet for weight loss and diabetes remission implemented within the community and supported by trained community health advocates was both an acceptable implementation strategy and a clinically effective intervention. This study aimed to examine the adaptability of the face-to-face protocol into an online modality.

Methods: The Iterative Decision-making for Evaluation of Adaptations (IDEA) framework guides researchers in examining the necessity of the adaptation and the preservation of core intervention elements during the adaptation process.

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Article Synopsis
  • The study aimed to assess a community-based health advocate (CHA) training program to help manage diabetes through a low-calorie diet (LCD) and evaluate its impact on weight loss and diabetes remission.
  • The research involved three faith-based organizations and included phases to assess site readiness, train CHAs, and implement the LCD intervention for participants with type 2 diabetes or pre-diabetes.
  • Results showed that the CHAs successfully completed their training, indicating the program's effectiveness, while participants in the LCD also demonstrated significant weight loss and potential improvements in their diabetes-related health metrics.
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Background: Only three of twenty Caribbean Community (CARCICOM) countries have mandatory school nutrition policies despite one third of the region's children being overweight or obese. In Barbados, there are nutrition guidelines which lack the legal mandate of a formal policy. We aim to assess the comprehensiveness of current national nutrition guidelines and to understand the factors operating in the inner and outer school setting that may influence the implementation of a mandatory school nutrition policy from the perspectives of school administrators.

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Unlabelled: For a patient undergoing a carotid endarterectomy, induction with propofol, administration of heparin at the time of vessel clamping, use of a bovine pericardial patch for angioplasty, covering the wound with a hydrocolloid dressing and post-operative aspirin administration exposes the patient to animal products at every stage, from the moment they walk through the door. A number of articles have advocated obtaining informed consent when using animal products in healthcare but where should the line be drawn?

Methods: A narrative review of the literature, specifically focussing on secular and religious beliefs about the use of animal products in healthcare. Application of ethical principles and GMC guidance to formulatea discussion with regards to the use of bovine pericardium in vascular surgery.

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• Border reopening will increase burden on contact tracing (CT) resources. • Governments of tourism-based economies must build quality health workforce capacity. • Prevalence of COVID-19 in the source country predicted CT capacity needed.

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Individuals in low-income and middle-income countries (LMICs) account for approximately two-thirds of cancer deaths worldwide, and the vast majority of these deaths occur without access to essential palliative care (PC). Although resource-stratified guidelines are being developed that take into account the actual resources available within a given country, and several components of PC are available within health care systems, PC will never improve without a trained workforce. The design and implementation of PC provider training programs is the lynchpin for ensuring that all seriously ill patients have access to quality PC services.

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Cancer causes a fifth of deaths in the Caribbean region and its incidence is increasing. Incidence and mortality patterns of cancer in the Caribbean reflect globally widespread epidemiological transitions, and show cancer profiles that are unique to the region. Providing comprehensive and locally responsive cancer care is particularly challenging in the Caribbean because of the geographical spread of the islands, the frequently under-resourced health-care systems, and the absence of a cohesive approach to cancer control.

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Cancer is now the second leading cause of death in the Caribbean. Despite this growing burden, many Caribbean small island nations have health systems that struggle to provide optimal cancer care for their populations. In this Series paper, we identify several promising strategies to improve cancer prevention and treatment that have emerged across small island nations that are part of the Caribbean Community.

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Like many nations in the Americas, the countries of the Caribbean are facing increasing morbidity and mortality associated with noncommunicable diseases (NCDs). In 2007, based on advocacy by Sir George Alleyne and others, the Caribbean Community (CARICOM) convened the first in the world Heads of Government NCDs Summit. This summit issued the Port of Spain Declaration that served not only as a rallying point to accelerate the regional NCDs response, but also as a catalyst for the first United Nations high-level meeting on NCDs in September 2011.

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Objective: The aim was the evaluation of mid-term efficacy and safety outcome measures for the Ovation (Endologix, Santa Rosa, CA, USA) stent graft system in the management of infrarenal abdominal aortic aneurysms (iAAA) with adverse anatomy.

Methods: A retrospective observational study of all patients undergoing elective iAAA repair was carried out from 2012 to 2017 using Ovation Prime or iX stent grafts with a minimum of 3 months follow-up at a single UK vascular centre. Post-operative surveillance involved computed tomography scans at 3 months and 1 year, with duplex ultrasound yearly thereafter.

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