105,932 research outputs found
Selecting and implementing overview methods: implications from five exemplar overviews
This is the final version of the article. Available from BioMed Central via the DOI in this record.Background
Overviews of systematic reviews are an increasingly popular method of evidence synthesis; there is a lack of clear guidance for completing overviews and a number of methodological challenges. At the UK Cochrane Symposium 2016, methodological challenges of five overviews were explored. Using data from these five overviews, practical implications to support methodological decision making of authors writing protocols for future overviews are proposed.
Methods
Methods, and their justification, from the five exemplar overviews were tabulated and compared with areas of debate identified within current literature. Key methodological challenges and implications for development of overview protocols were generated and synthesised into a list, discussed and refined until there was consensus.
Results
Methodological features of three Cochrane overviews, one overview of diagnostic test accuracy and one mixed methods overview have been summarised. Methods of selection of reviews and data extraction were similar. Either the AMSTAR or ROBIS tool was used to assess quality of included reviews. The GRADE approach was most commonly used to assess quality of evidence within the reviews.
Eight key methodological challenges were identified from the exemplar overviews. There was good agreement between our findings and emerging areas of debate within a recent published synthesis. Implications for development of protocols for future overviews were identified.
Conclusions
Overviews are a relatively new methodological innovation, and there are currently substantial variations in the methodological approaches used within different overviews. There are considerable methodological challenges for which optimal solutions are not necessarily yet known. Lessons learnt from five exemplar overviews highlight a number of methodological decisions which may be beneficial to consider during the development of an overview protocol.The overview conducted by Pollock [19] was supported by a project grant from the Chief Scientist Office of the Scottish Government. The overview conducted by McClurg [21] was supported by a project grant by the Physiotherapy Research Foundation. The overview by Hunt [22] was supported as part of doctoral programme funding by the National Institute for Health Research (NIHR) Collaboration for Leadership in Applied Health Research and Care South West Peninsula (PenCLAHRC). The overview conducted by Estcourt [20] was supported by an NIHR Cochrane Programme Grant for the Safe and Appropriate Use of Blood Components. The overview conducted by Brunton [23] was commissioned by the Department of Health as part of an ongoing programme of work on health policy research synthesis.
Alex Pollock is employed by the Nursing, Midwifery and Allied Health Professions (NMAHP) Research Unit, which is supported by the Chief Scientist Office of the Scottish Government. Pauline Campbell is supported by the Chief Nurses Office of the Scottish Government
Externalising moods and psychological states in a cloud based system to enhance a pet-robot and child’s interaction
Background:This PATRICIA research project is about using pet robots to reduce pain
and anxiety in hospitalized children. The study began 2 years ago and it is believed that
the advances made in this project are significant. Patients, parents, nurses, psycholo-
gists, and engineers have adopted the Pleo robot, a baby dinosaur robotic pet, which
works in different ways to assist children during hospitalization.
Methods: Focus is spent on creating a wireless communication system with the Pleo
in order to help the coordinator, who conducts therapy with the child, monitor, under-
stand, and control Pleo’s behavior at any moment. This article reports how this techno-
logical function is being developed and tested.
Results: Wireless communication between the Pleo and an Android device is
achieved. The developed Android app allows the user to obtain any state of the robot
without stopping its interaction with the patient. Moreover, information is sent to a
cloud, so that robot moods, states and interactions can be shared among different
robots.
Conclusions: Pleo attachment was successful for more than 1 month, working with
children in therapy, which makes the investment capable of positive therapeutic
possibilities. This technical improvement in the Pleo addresses two key issues in social
robotics: needing an enhanced response to maintain the attention and engagement of
the child, and using the system as a platform to collect the states of the child’s progress
for clinical purposes.Peer ReviewedPostprint (published version
NorthStar, a support tool for the design and evaluation of quality improvement interventions in healthcare
Background: The Research-Based Education and Quality Improvement (ReBEQI) European partnership aims to establish a framework and provide practical tools for the selection, implementation, and evaluation of quality improvement (QI) interventions. We describe the development and preliminary evaluation of the software tool NorthStar, a major product of the ReBEQI project. Methods: We focused the content of NorthStar on the design and evaluation of QI interventions. A lead individual from the ReBEQI group drafted each section, and at least two other group members reviewed it. The content is based on published literature, as well as material developed by the ReBEQI group. We developed the software in both a Microsoft Windows HTML help system version and a web-based version. In a preliminary evaluation, we surveyed 33 potential users about the acceptability and perceived utility of NorthStar. Results: NorthStar consists of 18 sections covering the design and evaluation of QI interventions. The major focus of the intervention design sections is on how to identify determinants of practice (factors affecting practice patterns), while the major focus of the intervention evaluation sections is on how to design a cluster randomised trial. The two versions of the software can be transferred by email or CD, and are available for download from the internet. The software offers easy navigation and various functions to access the content. Potential users (55% response rate) reported above-moderate levels of confidence in carrying out QI research related tasks if using NorthStar, particularly when developing a protocol for a cluster randomised trial Conclusion: NorthStar is an integrated, accessible, practical, and acceptable tool to assist developers and evaluators of QI interventions
Biological niches within human calcified aortic valves. Towards understanding of the pathological biomineralization process
Despite recent advances, mineralization site, its microarchitecture, and composition in calcific heart valve remain poorly
understood. A multiscale investigation, using scanning electron microscopy (SEM), transmission electron microscopy (TEM),
and energy dispersive X-ray spectrometry (EDS), from micrometre up to nanometre, was conducted on human severely calcified
aortic and mitral valves, to provide new insights into calcificationp rocess. Our aim was to evaluate the spatial relationship existing
between bioapatite crystals, their local growing microenvironment, and the presence of a hierarchical architecture. Here we detected
the presence of bioapatite crystals in two different mineralization sites that suggest the action of two different growth processes:a
pathological crystallization process that occurs in biological niches and is ascribed to a purely physicochemical process and a matrix-
mediated mineralized process in which the extracellular matrix acts as the template for a site-directed nanocrystals nucleation.
Different shapes of bioapatite crystallization were observed at micrometer scale in each microenvironment but at the nanoscale
level crystals appear to be made up by the same subunit
Towards a lightweight generic computational grid framework for biological research
Background: An increasing number of scientific research projects require access to large-scale computational resources. This is particularly true in the biological field, whether to facilitate the analysis of large high-throughput data sets, or to perform large numbers of complex simulations – a characteristic of the emerging field of systems biology. Results: In this paper we present a lightweight generic framework for combining disparate computational resources at multiple sites (ranging from local computers and clusters to established national Grid services). A detailed guide describing how to set up the framework is available from the following URL: http://igrid-ext.cryst.bbk.ac.uk/portal_guide/. Conclusion: This approach is particularly (but not exclusively) appropriate for large-scale biology projects with multiple collaborators working at different national or international sites. The framework is relatively easy to set up, hides the complexity of Grid middleware from the user, and provides access to resources through a single, uniform interface. It has been developed as part of the European ImmunoGrid project
The Infectious Disease Ontology in the Age of COVID-19
The Infectious Disease Ontology (IDO) is a suite of interoperable ontology modules that aims to provide coverage of all aspects of the infectious disease domain, including biomedical research, clinical care, and public health. IDO Core is designed to be a disease and pathogen neutral ontology, covering just those types of entities and relations that are relevant to infectious diseases generally. IDO Core is then extended by a collection of ontology modules focusing on specific diseases and pathogens. In this paper we present applications of IDO Core within various areas of infectious disease research, together with an overview of all IDO extension ontologies and the methodology on the basis of which they are built. We also survey recent developments involving IDO, including the creation of IDO Virus; the Coronaviruses Infectious Disease Ontology (CIDO); and an extension of CIDO focused on COVID-19 (IDO-CovID-19).We also discuss how these ontologies might assist in information-driven efforts to deal with the ongoing COVID-19 pandemic, to accelerate data discovery in the early stages of future pandemics, and to promote reproducibility of infectious disease research
The GUIDES checklist: development of a tool to improve the successful use of guideline-based computerised clinical decision support
Background: Computerised decision support (CDS) based on trustworthy clinical guidelines is a key component
of a learning healthcare system. Research shows that the effectiveness of CDS is mixed.
Multifaceted context, system, recommendation and implementation factors may potentially affect the success of
CDS interventions. This paper describes the development of a checklist that is intended to support professionals to
implement CDS successfully.
Methods: We developed the checklist through an iterative process that involved a systematic review of evidence
and frameworks, a synthesis of the success factors identified in the review, feedback from an international expert
panel that evaluated the checklist in relation to a list of desirable framework attributes, consultations with patients
and healthcare consumers and pilot testing of the checklist.
Results: We screened 5347 papers and selected 71 papers with relevant information on success factors for
guideline-based CDS. From the selected papers, we developed a 16-factor checklist that is divided in four domains,
i.e. the CDS context, content, system and implementation domains. The panel of experts evaluated the checklist
positively as an instrument that could support people implementing guideline-based CDS across a wide range of
settings globally. Patients and healthcare consumers identified guideline-based CDS as an important quality
improvement intervention and perceived the GUIDES checklist as a suitable and useful strategy.
Conclusions: The GUIDES checklist can support professionals in considering the factors that affect the success of
CDS interventions. It may facilitate a deeper and more accurate understanding of the factors shaping CDS
effectiveness. Relying on a structured approach may prevent that important factors are missed
Tests for predicting complications of pre-eclampsia: A protocol for systematic reviews
Background
Pre-eclampsia is associated with several complications. Early prediction of complications and timely management is needed for clinical care of these patients to avert fetal and maternal mortality and morbidity. There is a need to identify best testing strategies in pre eclampsia to identify the women at increased risk of complications. We aim to determine the accuracy of various tests to predict complications of pre-eclampsia by systematic quantitative reviews.
Method
We performed extensive search in MEDLINE (1951–2004), EMBASE (1974–2004) and also will also include manual searches of bibliographies of primary and review articles. An initial search has revealed 19500 citations. Two reviewers will independently select studies and extract data on study characteristics, quality and accuracy. Accuracy data will be used to construct 2 × 2 tables. Data synthesis will involve assessment for heterogeneity and appropriately pooling of results to produce summary Receiver Operating Characteristics (ROC) curve and summary likelihood ratios.
Discussion
This review will generate predictive information and integrate that with therapeutic effectiveness to determine the absolute benefit and harm of available therapy in reducing complications in women with pre-eclampsia
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Computerization of workflows, guidelines and care pathways: a review of implementation challenges for process-oriented health information systems
There is a need to integrate the various theoretical frameworks and formalisms for modeling clinical guidelines, workflows, and pathways, in order to move beyond providing support for individual clinical decisions and toward the provision of process-oriented, patient-centered, health information systems (HIS). In this review, we analyze the challenges in developing process-oriented HIS that formally model guidelines, workflows, and care pathways. A qualitative meta-synthesis was performed on studies published in English between 1995 and 2010 that addressed the modeling process and reported the exposition of a new methodology, model, system implementation, or system architecture. Thematic analysis, principal component analysis (PCA) and data visualisation techniques were used to identify and cluster the underlying implementation ‘challenge’ themes. One hundred and eight relevant studies were selected for review. Twenty-five underlying ‘challenge’ themes were identified. These were clustered into 10 distinct groups, from which a conceptual model of the implementation process was developed. We found that the development of systems supporting individual clinical decisions is evolving toward the implementation of adaptable care pathways on the semantic web, incorporating formal, clinical, and organizational ontologies, and the use of workflow management systems. These architectures now need to be implemented and evaluated on a wider scale within clinical settings
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