OvidSP Medline-to-PubMed search filter translation: a methodology for extending search filter range to include PubMed's unique content

Background: PubMed translations of OvidSP Medline search filters offer searchers improved ease of access. They may also facilitate access to PubMed’s unique content, including citations for the most recently published biomedical evidence. Retrieving this content requires a search strategy comprising natural language terms (‘textwords’), rather than Medical Subject Headings (MeSH). We describe a reproducible methodology that uses a validated PubMed search filter translation to create a textword-only strategy to extend retrieval to PubMed’s unique heart failure literature. Methods: We translated an OvidSP Medline heart failure search filter for PubMed and established version equivalence in terms of indexed literature retrieval. The PubMed version was then run within PubMed to identify citations retrieved by the filter’s MeSH terms (Heart failure, Left ventricular dysfunction, and Cardiomyopathy). It was then rerun with the same MeSH terms restricted to searching on title and abstract fields (i.e. as ‘textwords’). Citations retrieved by the MeSH search but not the textword search were isolated. Frequency analysis of their titles/ abstracts identified natural language alternatives for those MeSH terms that performed less effectively as textwords. These terms were tested in combination to determine the best performing search string for reclaiming this ‘lost set’. This string, restricted to searching on PubMed’s unique content, was then combined with the validated PubMed translation to extend the filter’s performance in this database. Results: The PubMed heart failure filter retrieved 6829 citations. Of these, 834 (12%) failed to be retrieved when MeSH terms were converted to textwords. Frequency analysis of the 834 citations identified five high frequency natural language alternatives that could improve retrieval of this set (cardiac failure, cardiac resynchronization, left ventricular systolic dysfunction, left ventricular diastolic dysfunction, and LV dysfunction). Together these terms reclaimed 157/834 (18.8%) of lost citations. Conclusions: MeSH terms facilitate precise searching in PubMed’s indexed subset. They may, however, work less effectively as search terms prior to subject indexing. A validated PubMed search filter can be used to develop a supplementary textword-only search strategy to extend retrieval to PubMed’s unique content. A PubMed heart failure search filter is available on the CareSearch website (www.caresearch.com.au) providing access to both indexed and non-indexed heart failure evidence.This study was conducted as part of the work of the CareSearch Project. CareSearch is funded by the Australian Government Department of Health and Ageing

How Do Clinicians Learn About Knowledge Translation? An Investigation of Current Web-Based Learning Opportunities

This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR Medical Education, is properly cited. The complete bibliographic information, a link to the original publication on http://mededu.jmir.org/, as well as this copyright and license information must be included.Background: Clinicians are important stakeholders in the translation of well-designed research evidence into clinical practice for optimal patient care. However, the application of knowledge translation (KT) theories and processes may present conceptual and practical challenges for clinicians. Online learning platforms are an effective means of delivering KT education, providing an interactive, time-efficient, and affordable alternative to face-to-face education programs. Objective: This study investigates the availability and accessibility of online KT learning opportunities for health professionals. It also provides an analysis of the types of resources and associated disciplines retrieved by a range of KT synonyms. Methods: We searched a range of bibliographic databases and the Internet (Google advanced option) using 9 KT terms to identify online KT learning resources. To be eligible, resources had to be free, aimed at clinicians, educational in intent, and interactive in design. Each term was searched using two different search engines. The details of the first 100 websites captured per browser (ie, n=200 results per term) were entered into EndNote. Each site was subsequently visited to determine its status as a learning resource. Eligible websites were appraised for quality using the AACODS (Authority, Accuracy, Coverage, Objectivity, Date, Significance) tool. Results: We identified 971 unique websites via our multiple search strategies. Of these, 43 were health-related and educational in intent. Once these sites were evaluated for interactivity, a single website matched our inclusion criteria (Dementia Knowledge Translation Learning Centre). Conclusions: KT is an important but complex system of processes. These processes overlap with knowledge, practice, and improvement processes that go by a range of different names. For clinicians to be informed and competent in KT, they require better access to free learning opportunities. These resources should be designed from the viewpoint of the clinician, presenting KT’s multifaceted theories and processes in an engaging, interactive way. This learning should empower clinicians to contextualize and apply KT strategies within their own care settings

Managing the Knowledge Base for Primary Health Care: Report on the Development of a Primary Health Care Search Filter, PubMed topic Searches, and Web Guidance for Retrieving the Primary Health Care Literature

© 2012 Flinders University Research Centre for Palliative Care, Death and Dying This work is copyright. It may be reproduced in whole or in part for research or training purposes subject to the inclusion of an acknowledgement of the source. It may not be reproduced for commercial use or sale. Reproduction for purposes other than those indicated above requires written permission from the Research Centre for Palliative Care, Death, and Dying.As the literature and evidence base on which health care professionals depend continues to grow, identifying what works in relation to primary health care (PHC) becomes more and more challenging. The publication and storage of materials in different repositories, different indexing and description methods along with multiple concepts and associated terminologies, all mean that the efficient and timely retrieval of vital information can be difficult. This White Paper/Research Report details the development of a high-performance PHC search filter and associated topic searches that provide health care professionals with a more efficient, reliable, and timely means of retrieving relevant PHC information

Deathbed phenomena reported by patients in palliative care: clinical opportunities and responses

Copyright 2015 Mark Allen Healthcare. editorially accepted manuscript version of the paper reproduced here with permission from the publisher.Over many decades and across many cultures and disciplines, the scientific literature reports unusual and hard to explain phenomena at the end of life. In the palliative care literature these reports are often anecdotal (Nelson, 2000), poorly understood or even treated just as hallucination (Morse 1994). In practice though, many health professionals have heard accounts from ill and dying patients of difficult to explain events (Pflaum and Kelley 1986, Wimbush and Hardie 2001, Mazzarino-Willett 2010) and while health professionals need also to recognise hallucinations arising from delirium, dementia or other neurologic or psychiatric disorders, underlying causality for these experiences may not be obvious or attributable. We have adopted the term Death Bed Phenomena (DBP) described here by Brayne and colleagues (2006, Page 17): “death may be heralded by deathbed phenomena such as visions that comfort the dying and prepare them spiritually for death” although these unexplainable accounts range from seeing dead relatives, hearing or feeling “other worlds” (Fenwick and Brayne, 2012), a significant dream, or patients being aware of the time of their own death. Patients and carers can be reluctant to discuss or divulge these phenomena for fear of being labelled ‘mad’ (Barbato et al, 1999) and health professionals (professionally trained and primarily educated in biomedical, scientific or rational models and ways of thinking) can find this a perplexing issue leaving them unsure how to respond to their patients’ stories and accounts (Brayne et al, 2006). In a quest to understand the clinical potential around these phenomena, we undertook this systematic review of the literature, with a specific focus on the palliative care population for whom death is an expected and foreseeable event due to progressive illness. While postulations on possible causes of these extraordinary end of life phenomena can be fascinating to read (Blanke, 2004), such phenomena are real for those who experience them. “Assumptions about their origins and credibility can alienate” patients and their families “at a critical time in their mourning or dying” (Barbato et al, 1999). Like others (Brayne et al 2006, Fenwick and Brayne 2011), Barbato and colleagues (1999) raise the potential within our professional role to normalise the experience and encourage the patient to find solace and emotional and spiritual wellbeing. In an effort to understand more fully these phenomena and their impact, health professionals, sociologists, psychologists and others have explored patient accounts of difficult to explain events and occurrences. Studies describing deathbed phenomena (DBP) (Barrett 1926, Sartori 2010) and near death experiences (NDE) (Morse 1994, Alvarado 2006, Bell et al 2010) emphasise the supportive spiritual potential of DBP (Ethier 2005, Fenwick and Brayne 2011), suggest additional therapies to further interpret DBP (Iordache and MacLeod, 2011), and put forward specific approaches for children and adolescents who experience NDE (Bell et al, 2010). DBP has been distinguished from NDE with the latter usually describing an unusual event or experience preceding an unexpected or accidental near death, or reported after successful cardiopulmonary resuscitation. While the nomenclature and definitions of DBP are developing in the literature, a comprehensive review about these occurrences reported by patients in a palliative care context is not available. DBP may be of especial significance in this population where cure is not possible and death at some point is a foreseeable event

The association between ethnicity and the delay time in seeking medical care for chest pain: a systematic review

Made available in accordance with the Publisher's Author's Permissions policyBackground: Acute coronary syndrome (ACS) is a leading cause of mortality and morbidity worldwide, and chest pain is one of the most common symptoms of ACSs. A rapid response to chest pain by patients and appropriate management by health professionals are vital to improve survival rates. People from different ethnic groups are likely to have different perceptions of chest pain, its severity and the need for urgent treatment. These differences in perception may contribute to differences in response to chests pain and precipitate unique coping strategies. Delay in seeking medical care for chest pain in the general population has been well documented; however, limited studies have focused on delay times within ethnic groups. There is little research to date as to whether ethnicity is associated with the time taken to seek medical care for chest pain. Consequently, addressing this gap in knowledge will play a crucial role in improving the health outcomes of culturally and linguistically diverse (CALD) patients suffering from chest pain and for developing appropriate clinical practice and public awareness for these populations. Objectives: The current review aimed to determine if there is an association between ethnicity and delay in seeking medical care for chest pain among CALD populations. Inclusion criteria Types of participants: Patients from different ethnic minority groups presenting to emergency departments (EDs) with chest pain. Types of exposure: The current review will examine studies that evaluate the association between ethnicity and delay in seeking medical care for chest pain among CALD populations. Types of studies: The current review will consider quantitative studies including randomized controlled trials (RCTs), non-RCTs, quasi-experimental, before and after studies, prospective and retrospective cohort studies, case-control studies and analytical cross-sectional studies. Outcomes: The current review will consider studies that measure delay time as the main outcome. The time will be measured as the interval between the time of symptom onset and time to reach an ED. Search strategy: A comprehensive search was undertaken for relevant published and unpublished studies written in English with no date restriction. All searches were conducted in October 2014. We searched the following databases: MEDLINE, PubMed, Cochrane Central Register of Controlled Trials, Embase, Cumulative Index to Nursing and Allied Health Literature (CINAHL), PsycINFO, ProQuest (health databases only), Informit, Sociological Abstracts, Scopus and Web of Science. The search for unpublished studies included a wide range of ‘gray literature’ sources including national libraries, digital theses repositories and clinical trial registries. We also targeted specific health research, specialist cardiac, migrant health, and emergency medicine organizational websites and/or conferences. We also checked the reference lists of included studies and contacted authors when further details about reported data was required to make a decision about eligibility. Methodological quality: Papers selected for retrieval were assessed by two independent reviewers for methodological validity prior to being included in the review. Validity was assessed using standardized critical appraisal instruments from the Joanna Briggs Institute. Adjudication was produced by the third reviewer. Data extraction: Data were extracted from included articles by two independent reviewers using the standardized data extraction tool from the Joanna Briggs Institute. Data synthesis: The extracted data were synthesized into a narrative summary. Meta-analysis could not be performed due to the heterogeneity of study protocols and methods used to measure outcomes. Results: A total of 10 studies, with a total of 1,511,382 participants, investigating the association between ethnicity and delay met the inclusion criteria. Delay times varied across ethnic groups, including Black, Hispanic, Asian, South Asian, Southeast Asian and Chinese. Seven studies reported delay in hours and ranged from 1.90 to 3.10 h. Delay times were longer among CALD populations than the majority population. The other three studies reported delay time in categories of time (e.g. <1, <4 and <6 h) and found larger proportions of later presentations to the EDs among ethnic groups compared with the majority groups. Conclusion: There is evidence of an association between ethnicity and time taken in seeking medical care for chest pain, with patients from some ethnic minorities (e.g. Black, Asian, Hispanic and South Asian) taking longer than those of the majority population. Health promotions and health campaigns focusing on these populations are indicated

LIt.search: fast tracking access to Aboriginal and Torres Strait Islander health literature

Author version made available in accordance with the Publisher's policyObjective: To develop and validate a PubMed search filter, LIt.search, that automatically retrieves Aboriginal and Torres Strait Islander health literature, and to make it publicly accessible through the Lowitja Institute website. Methods: Search filter development phases included: (a) scoping of the publication characteristics of Aboriginal and Torres Start Islander literature, (b) Advisory Group input and review, (c) systematic identification and testing of MeSH and text word terms, (d) relevance assessment of the search filter’s retrieved items, and (e) translation for use in PubMed through the web. Results: Scoping study analyses demonstrated complexity in the nature and use of possible search terms and publication characteristics. The search filter achieved a recall rate of 83.1% in the test set. To determine real world performance, post-hoc assessment of items retrieved by the search filter in PubMed was undertaken with 87.1% of articles deemed as relevant. The search filter was constructed as a series of URL hyperlinks to enable one-click searching. Conclusion: LIt.search is a search tool that facilitates research into practice for improving outcomes in Aboriginal and Torres Strait Islander health and is publicly available on the Lowitja Institute website

Topic search filters: a systematic scoping review

This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for self-archiving. © 2018 Health Libraries Group All rights reserved. This author accepted manuscript is made available following 24 month embargo from date of publication (Dec 2018) in accordance with the publisher’s archiving policyBackground Searching for topics within large biomedical databases can be challenging, especially when topics are complex, diffuse, emerging or lack definitional clarity. Experimentally derived topic search filters offer a reliable solution to effective retrieval; however, their number and range of subject foci remain unknown. Objectives This systematic scoping review aims to identify and describe available experimentally developed topic search filters. Methods Reports on topic search filter development (1990‐) were sought using grey literature sources and 15 databases. Reports describing the conception and prospective development of a database‐specific topic search and including an objectively measured estimate of its performance (‘sensitivity’) were included. Results Fifty‐four reports met inclusion criteria. Data were extracted and thematically synthesised to describe the characteristics of 58 topic search filters. Discussion Topic search filters are proliferating and cover a wide range of subjects. Filter reports, however, often lack clear definitions of concepts and topic scope to guide users. Without standardised terminology, filters are challenging to find. Information specialists may benefit from a centralised topic filter repository and appraisal checklists to facilitate quality assessment. Conclusion Findings will help information specialists identify existing topic search filters and assist filter developers to build on current knowledge in the field

Facilitating access to evidence: Primary Health Care Search Filter

Background: The evidence base developed by, and relevant to, primary health care (PHC) is rapidly increasing. With the wealth of literature available, searchers trying to find PHC-specific citations can feel overwhelmed. Objectives: Flinders Filters and the Primary Health Care Research & Information Service collaborated to develop a search filter enabling efficient and effective retrieval of relevant PHC literature. Methods: Stage 1 involved developing a PHC Search Filter in the OvidSP Medline platform using a rigor-ous experimental methodology. The search filter was then translated for Web-based ‘one-click searching’ in PubMed during Stage 2. Stage 3 involved planning and implementing a mixed-methods evaluation. Results: The search filter sensitivity was 77.0% with a post hoc relevance assessment of 78 .3%. Four months after its launch, a mixed-methods study evaluated the PHC Search Filter. With 90 respondents, analysis of data from the online survey demonstrated overarching benefits, a positive response to the tool and directions for further refinement of the PHC Search Filter. Discussion: Designing the PHC Search Filter follow ed an established method that ensures the tool offers a validated search strategy. Evaluation results suggest that the PHC Search Filter is a useful tool that is easy to navigate. Challenges for the Filter relate to access to full text articles, while challenges for the evaluation relate to the small sample size. Conclusions: The PHC Search Filter reduces the burden associated with literature searching, increases the value of the results that are received and provides a useful resource to improve the likelihood of incorporating relevant evidence into policy and practice

Finding the Integrated Care Evidence Base in PubMed and Beyond: A Bibliometric Study of the Challenges

Introduction: Integrated care research evidence should be optimally visible and accessible to stakeholders. This study examines the contribution of specific databases to the discovery of integrated care evidence, and tests the usefulness of Medical Subject Heading (MeSH) indexing of this literature within PubMed. Methods: We used bibliometric methods to analyse the integrated care literature indexed within six databases between 2007 and 2016. An international expert advisory group assessed the relevance of citations randomly retrieved from PubMed using MeSH term ‘Delivery of Health Care, Integrated’. Results: Integrated care evidence is diffuse, spread across many journals. Between 2007 and 2016, integrated care citations grew substantially, with the rate of increase highest in Embase. PubMed contributes the largest proportion of unique citations (citations not included in any of the other databases analysed), followed by Embase, PsycINFO and CINAHL. On average, expert reviewers rated 42.5% of citations retrieved by MeSH term ‘Delivery of Health Care, Integrated’ as relevant to integrated care. When these citations were dual reviewed, inter-rater agreement was low. Conclusion: MeSH terms alone are insufficient to retrieve integrated care content from PubMed. Embase and CINAHL contain unique content not found in PubMed that should not be overlooked. A validated search filter is proposed to simplify the process of finding integrated care research for clinicians, managers and decision-makers

Primary Health Care (PHC) Search Filter: Bringing the evidence to shore

Surfing the internet for primary health care (PHC) literature produces waves of information that can lead a researcher to feel as though they are drowning in papers. Sifting through material to find the oysters containing pearls can be a complex task. With the PHC literature and evidence base rapidly increasing, Flinders Filters and the Primary Health Care Research & Information Service collaborated on a project to develop a search filter designed to facilitate easier access to this pool of PHC resources, by enabling efficient and effective retrieval of relevant literature. The PHC Search Filter was developed in the Ovid Medline platform with an extensive methodology comprising five phases including: constructing a gold standard set of PHC-specific articles; identifying relevant index terms and textwords; testing combinations of search terms; assessing the search strategy which performed most effectively; and translating the filter for use in PubMed to enable ‘one click searching’. This presentation will introduce the PHC Search Filter, addressing its development and showcasing the tool through an audiovisual ‘how to’ segment. In addition, the presentation will report on a mixed-methods study used to evaluate the Filter, four months after its launch. This evaluation involved extensive advertising of an online survey with individuals invited to participate regardless of whether they had used the Filter or not. With 90 respondents, the survey provided details about the overarching benefits and positive response to the tool, and directions for further refinement of the Filter. The key findings from the evaluation noted that the PHC Search Filter reduces the burden associated with literature searching, increases the value of the results that are received, and provides a useful resource to improve the likelihood of incorporating evidence into policy and practice