Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 16 de 16
Filter
1.
PLoS One ; 18(7): e0288474, 2023.
Article in English | MEDLINE | ID: mdl-37440486

ABSTRACT

PURPOSE: Self-assessment of a physician's performance in both procedure and non-procedural activities can be used to identify their deficiencies to allow for appropriate corrective measures. Physicians are inaccurate in their self-assessments, which may compromise opportunities for self- development. To improve this accuracy, video-based interventions of physicians watching their own performance, an experts' performance or both, have been proposed to inform their self-assessment. We conducted a systematic review of the effectiveness of video-based interventions targeting improved self-assessment accuracy among physicians. MATERIALS AND METHODS: The authors performed a systematic search of MEDLINE, Embase, EBM reviews, and Scopus databases from inception to August 23, 2022, using combinations of terms for "self-assessment", "video-recording", and "physician". Eligible studies were empirical investigations assessing the effect of video-based interventions on physicians' self-assessment accuracy with a comparison of self-assessment accuracy pre- and post- video intervention. We defined self-assessment accuracy as a "direct comparison between an external evaluator and self-assessment that was quantified using formal statistical analysis". Two reviewers independently screened records, extracted data, assessed risk of bias, and evaluated quality of evidence. A narrative synthesis was conducted, as variable outcomes precluded a meta-analysis. RESULTS: A total of 2,376 papers were initially retrieved. Of these, 22 papers were selected for full-text review; a final 9 studies met inclusion criteria for data extraction. Across studies, 240 participants from 5 specialties were represented. Video-based interventions included self-video review (8/9), benchmark video review (3/9), and/or a combination of both types (1/9). Five out of nine studies reported that participants had inaccurate self-assessment at baseline. After the intervention, 5 of 9 studies found a statistically significant improvement in self-assessment accuracy. CONCLUSIONS: Overall, current data suggests video-based interventions can improve self-assessment accuracy. Benchmark video review may enable physicians to improve self-assessment accuracy, especially for those with limited experience performing a particular clinical skill. In contrast, self-video review may be able to provide improvement in self-assessment accuracy for more experience physicians. Future research should use standardized methods of comparison for self-assessment accuracy, such as the Bland-Altman analysis, to facilitate meta-analytic summation.


Subject(s)
Physicians , Humans , Self-Assessment , Clinical Competence
2.
J Can Assoc Gastroenterol ; 5(5): 214-220, 2022 Oct.
Article in English | MEDLINE | ID: mdl-36196272

ABSTRACT

Background: Propensity score matching (PSM), a statistical technique that estimates a treatment effect by accounting for predictor covariates, has been used to evaluate biologics for inflammatory bowel disease (IBD). Financial conflicts of interest are prevalent in the marketing of biologic medications. It is unclear whether this burden of conflicts is present among authors of PSM studies comparing IBD biologics and biosimilars. Objective: This study was aimed to determine the prevalence of financial conflicts of interest among authors of PSM studies evaluating IBD biologics and biosimilars. Methods: We conducted a systematic search for PSM studies comparing biologics and biosimilars in IBD treatment. We identified 21 eligible studies. Two independent authors extracted self-declared conflicts from the disclosures section. Each participating author was searched on the Centers for Medicare & Medicaid Services Open Payments to identify payment amounts and undisclosed conflicts. Primary outcome was the prevalence of author conflicts. Secondary analyses assessed for an association between conflict prevalence and reporting of positive outcomes. Results: Among 283 authors, conflicts were present among 41.0% (116 of 283). Twenty-three per cent (27 of 116) of author conflicts involved undisclosed payments. Studies with positive outcomes were significantly more likely to include conflicted authors than neutral studies (relative risk = 2.34, 95% confidence interval: 1.71 to 3.21, P < 0.001). Conclusions: Overall, we found a high burden of undisclosed conflicts among authors of PSM studies comparing IBD biologics and biosimilars. Given the importance of PSM studies as a means for biologic comparison and the potential for undue industry influence from these payments, authors should ensure greater transparency with reporting of industry relationships.

3.
Endosc Int Open ; 10(9): E1322-E1327, 2022 Sep.
Article in English | MEDLINE | ID: mdl-36118639

ABSTRACT

Background and study aims Endoscopists are at high risk of musculoskeletal pain and injuries (MSPI). Recently, ergonomics has emerged as an area of interest to reduce and prevent the incidence of MSPI in endoscopy. The aim of this systematic review was to determine educational interventions using ergonomic strategies that target reduction of endoscopist MSPI from gastrointestinal endoscopy. Methods In December 2020, we conducted a systematic search in MEDLINE, EMBASE, PsycINFO, Web of Science, Scopus, the Cochrane Central Register of Controlled Trials and the Cochrane Database of Systematic Reviews for articles published from inception to December 16, 2020. Studies were included if they investigated educational interventions aimed at changing knowledge and/or behaviors related to ergonomics in gastrointestinal endoscopy. After screening and full-text review, we extracted data on study design, participants, type of training, and assessment of primary outcomes. We evaluated study quality with the Medical Education Research Study Quality Instrument (MERSQI). Results Of the initial 575 records identified in the search, five met inclusion criteria for qualitative synthesis. We found that most studies (n = 4/5, 80 %) were single-arm interventional studies that were conducted in simulated and/or clinical settings. The most common types of interventions were didactic sessions and/or videos (n = 4/5, 80%). Two (40 %) studies used both standardized assessment studies and formal statistical analyses. The mean MERSQI score was 9.7. Conclusions There is emerging literature demonstrating the effectiveness of interventions to improve ergonomics in gastrointestinal endoscopy.

4.
Adv Health Sci Educ Theory Pract ; 27(1): 229-262, 2022 03.
Article in English | MEDLINE | ID: mdl-34570298

ABSTRACT

Assessment is more educationally effective when learners engage with assessment processes and perceive the feedback received as credible. With the goal of optimizing the educational value of assessment in medical education, we mapped the primary literature to identify factors that may affect a learner's perceptions of the credibility of assessment and assessment-generated feedback (i.e., scores or narrative comments). For this scoping review, search strategies were developed and executed in five databases. Eligible articles were primary research studies with medical learners (i.e., medical students to post-graduate fellows) as the focal population, discussed assessment of individual learners, and reported on perceived credibility in the context of assessment or assessment-generated feedback. We identified 4705 articles published between 2000 and November 16, 2020. Abstracts were screened by two reviewers; disagreements were adjudicated by a third reviewer. Full-text review resulted in 80 articles included in this synthesis. We identified three sets of intertwined factors that affect learners' perceived credibility of assessment and assessment-generated feedback: (i) elements of an assessment process, (ii) learners' level of training, and (iii) context of medical education. Medical learners make judgments regarding the credibility of assessments and assessment-generated feedback, which are influenced by a variety of individual, process, and contextual factors. Judgments of credibility appear to influence what information will or will not be used to improve later performance. For assessment to be educationally valuable, design and use of assessment-generated feedback should consider how learners interpret, use, or discount assessment-generated feedback.


Subject(s)
Education, Medical , Students, Medical , Feedback , Humans , Judgment
5.
Global Health ; 17(1): 103, 2021 09 06.
Article in English | MEDLINE | ID: mdl-34488810

ABSTRACT

BACKGROUND: Refugees often face psychosocial complexity and multi-dimensional healthcare needs. Community-Based Participatory Research (CBPR) methods have been previously employed in designing health programs for refugee communities and in building strong research partnerships in refugee communities. However, the extent to which these communities are involved remains unknown. OBJECTIVE: To review the evidence on the involvement of refugees in CBPR processes to inform healthcare research. METHODS: A scoping review was performed, using Arksey & O'Malley's methodological framework. A literature search in Medline, PubMed, PsycINFO, CINAHL, Embase, Global Health, Scopus, and Policy File Index for articles published until August 2020 was conducted. Articles were included if they focused on CBPR, had refugee involvement, and discussed healthcare/health policy. RESULTS: 4125 articles were identified in the database searches. After removal of duplicates, 2077 articles underwent title and abstract review by two authors, yielding an inter-reviewer kappa-statistic of 0.85. 14 studies were included in the final analysis. The purpose of CBPR use for 6 (42.9%) of the articles was developing and implementing mental health/social support interventions, 5 (35.7%) focused on sexual and reproductive health interventions, 1 (7.1%) focused on domestic violence interventions, 1 (7.1%) focused on cardiovascular disease prevention and 1 (7.1%) focused on parenting interventions. In terms of refugee involvement in the various stages in the research process, 9 (64.3%) articles reported refugees having a role in the inception of the research, no articles reported including refugees in obtaining funding, all articles included refugees in the design of the research study, 10 (71.4%) articles reported having refugees involved in community engagement/recruitment, 8 (57.1%) articles reported involvement throughout the data collection process, 4 (28.6%) articles reported involvement in data analysis, 6 (42.9%) articles reported having refugees involved in knowledge translation/dissemination and 1 article (7.1%) reported having refugees contribute to scale up initiatives. CONCLUSIONS: CBPR has been identified as a methodology with the potential to make substantial contributions to improving health and well-being in traditionally disenfranchised populations. As the needs of refugee communities are so diverse, efforts should be made to include refugees as partners in all stages of the research process.


Subject(s)
Refugees , Community-Based Participatory Research , Delivery of Health Care , Health Services Research , Humans , Translational Science, Biomedical
6.
Resuscitation ; 163: 28-48, 2021 Apr 07.
Article in English | MEDLINE | ID: mdl-33838169

ABSTRACT

BACKGROUND: Early coronary angiography (CAG) has been reported in individual studies and systematic reviews to significantly improve outcomes of patients with return of spontaneous circulation (ROSC) after cardiac arrest (CA). METHODS: We undertook a systematic review and meta-analysis to evaluate the impact of early CAG on key clinical outcomes in comatose patients after ROSC following out-of-hospital CA of presumed cardiac origin. We searched the PubMED, EMBASE, CINAHL, ERIC and Cochrane Central Register of Controlled Trials databases from 1990 until April 2020. Eligible studies compared patients undergoing early CAG to patients with late or no CAG. When randomized controlled trials (RCTs) existed for a specific outcome, we used their results to estimate the effect of the intervention. In the absence of randomized data, we used observational data. We excluded studies at high risk of bias according to the Robins-I tool from the meta-analysis. The GRADE system was used to assess certainty of evidence at an outcome level. RESULTS: Of 3738 citations screened, 3 randomized trials and 41 observational studies were eligible for inclusion. Evidence certainty across all outcomes for the RCTs was assessed as low. Randomized data showed no benefit from early as opposed to late CAG across all critical outcomes of survival and survival with favourable neurologic outcome for undifferentiated patients and for patient subgroups without ST-segment-elevation on post ROSC ECG and shockable initial rhythm. CONCLUSION: These results do not support routine early CAG in undifferentiated comatose patients and patients without STE on post ROSC ECG after OHCA. REVIEW REGISTRATION: PROSPERO - CRD42020160152.

7.
Ann Emerg Med ; 75(2): 206-217, 2020 02.
Article in English | MEDLINE | ID: mdl-31474478

ABSTRACT

STUDY OBJECTIVE: Clinical reasoning is considered a core competency of physicians. Yet there is a paucity of research on clinical reasoning specifically in emergency medicine, as highlighted in the literature. METHODS: We conducted a scoping review to examine the state of research on clinical reasoning in this specialty. Our team, composed of content and methodological experts, identified 3,763 articles in the literature, 95 of which were included. RESULTS: Most studies were published after 2000. Few studies focused on the cognitive processes involved in decisionmaking (ie, clinical reasoning). Of these, many confirmed findings from the general literature on clinical reasoning; specifically, the role of both intuitive and analytic processes. We categorized factors that influence decisionmaking into contextual, patient, and physician factors. Many studies focused on decisions in regard to investigations and admission. Test ordering is influenced by physicians' experience, fear of litigation, and concerns about malpractice. Fear of litigation and malpractice also increases physicians' propensity to admit patients. Context influences reasoning but findings pertaining to specific factors, such as patient flow and workload, were inconsistent. CONCLUSION: Many studies used designs such as descriptive or correlational methods, limiting the strength of findings. Many gray areas persist, in which studies are either scarce or yield conflicting results. The findings of this scoping review should encourage us to intensify research in the field of emergency physicians' clinical reasoning, particularly on the cognitive processes at play and the factors influencing them, using appropriate theoretical frameworks and more robust methods.


Subject(s)
Decision Making , Emergency Medicine/methods , Emergency Service, Hospital , Physicians/psychology , Defensive Medicine , Humans
8.
Am J Clin Nutr ; 111(2): 266-279, 2020 02 01.
Article in English | MEDLINE | ID: mdl-31851302

ABSTRACT

BACKGROUND: The majority of children in North America consume cow-milk daily. Children aged >2 y are recommended to consume reduced-fat (0.1-2%) cow-milk to lower the risk of obesity. OBJECTIVES: To evaluate the relation between cow-milk fat consumption and adiposity in children aged 1-18 y. METHODS: Embase (Excerpta Medica Database), CINAHL (Cumulative Index to Nursing and Allied Health Literature), MEDLINE, Scopus, and Cochrane Library databases from inception to August 2019 were used. The search included observational and interventional studies of healthy children aged 1-18 y that described the association between cow-milk fat consumption and adiposity. Two reviewers extracted data, using the Newcastle-Ottawa Scale to assess risk of bias. Meta-analysis was conducted using random effects to evaluate the relation between cow-milk fat and risk of overweight or obesity. Adiposity was assessed using BMI z-score (zBMI). RESULTS: Of 5862 reports identified by the search, 28 met the inclusion criteria: 20 were cross-sectional and 8 were prospective cohort. No clinical trials were identified. In 18 studies, higher cow-milk fat consumption was associated with lower child adiposity, and 10 studies did not identify an association. Meta-analysis included 14 of the 28 studies (n = 20,897) that measured the proportion of children who consumed whole milk compared with reduced-fat milk and direct measures of overweight or obesity. Among children who consumed whole (3.25% fat) compared with reduced-fat (0.1-2%) milk, the OR of overweight or obesity was 0.61 (95% CI: 0.52, 0.72; P < 0.0001), but heterogeneity between studies was high (I2 = 73.8%). CONCLUSIONS: Observational research suggests that higher cow-milk fat intake is associated with lower childhood adiposity. International guidelines that recommend reduced-fat milk for children might not lower the risk of childhood obesity. Randomized trials are needed to determine which cow-milk fat minimizes risk of excess adiposity. This systematic review and meta-analysis was registered with PROSPERO (registration number: CRD42018085075).


Subject(s)
Diet , Milk/chemistry , Pediatric Obesity/prevention & control , Animals , Child , Child Nutritional Physiological Phenomena , Humans
9.
PLoS One ; 14(9): e0221339, 2019.
Article in English | MEDLINE | ID: mdl-31479448

ABSTRACT

We undertook a systematic review of the diagnostic accuracy of artificial intelligence-based software for identification of radiologic abnormalities (computer-aided detection, or CAD) compatible with pulmonary tuberculosis on chest x-rays (CXRs). We searched four databases for articles published between January 2005-February 2019. We summarized data on CAD type, study design, and diagnostic accuracy. We assessed risk of bias with QUADAS-2. We included 53 of the 4712 articles reviewed: 40 focused on CAD design methods ("Development" studies) and 13 focused on evaluation of CAD ("Clinical" studies). Meta-analyses were not performed due to methodological differences. Development studies were more likely to use CXR databases with greater potential for bias as compared to Clinical studies. Areas under the receiver operating characteristic curve (median AUC [IQR]) were significantly higher: in Development studies AUC: 0.88 [0.82-0.90]) versus Clinical studies (0.75 [0.66-0.87]; p-value 0.004); and with deep-learning (0.91 [0.88-0.99]) versus machine-learning (0.82 [0.75-0.89]; p = 0.001). We conclude that CAD programs are promising, but the majority of work thus far has been on development rather than clinical evaluation. We provide concrete suggestions on what study design elements should be improved.


Subject(s)
Diagnosis, Computer-Assisted/methods , Tuberculosis, Pulmonary/diagnostic imaging , Area Under Curve , Artificial Intelligence , Diagnosis, Computer-Assisted/standards , Diagnosis, Computer-Assisted/statistics & numerical data , Humans , Predictive Value of Tests , Quality Assurance, Health Care , Radiography , Sensitivity and Specificity , Software
10.
Resuscitation ; 138: 114-128, 2019 05.
Article in English | MEDLINE | ID: mdl-30862528

ABSTRACT

AIM: To assess the use of advanced airway interventions (tracheal intubation (TI) or supraglottic airway (SGA) placement), compared with bag mask ventilation (BMV) alone, for resuscitation of children in cardiac arrest. METHODS: We searched Medline, EMBASE, and Cochrane Controlled Register of Trials (CENTRAL) for human trials and observational studies published before September 24, 2018 for clinical trials and observational studies with a comparison group. Two investigators reviewed studies for relevance, extracted data, and assessed risk of bias using the GRADE and CLARITY frameworks. Study authors were contacted when necessary to obtain additional data. Critically important outcomes included survival to hospital discharge and survival with good neurological outcome. RESULTS: We identified 14 studies, including 1 pseudorandomised clinical trial, 3 observational cohort studies using propensity matching, and 8 simple cohort studies suitable for meta-analysis. The overall certainty of evidence was low to very low. For the critically important outcomes of survival to hospital discharge with good neurologic outcome and survival to hospital discharge results suggested better outcomes achieved with BMV than either TI or SGA; limited data favored SGA over TI. The majority of studies involved out-of-hospital cardiac arrest, with few studies of in-hospital cardiac arrest. CONCLUSIONS: TI or SGA are not superior to BMV for resuscitation of children in cardiac arrest, but the overall certainty of evidence is low to very low. Well designed randomised efficacy trials are needed to address this important question.


Subject(s)
Cardiopulmonary Resuscitation , Heart Arrest/therapy , Intubation, Intratracheal/methods , Noninvasive Ventilation/methods , Airway Management/methods , Cardiopulmonary Resuscitation/adverse effects , Cardiopulmonary Resuscitation/instrumentation , Cardiopulmonary Resuscitation/methods , Child , Comparative Effectiveness Research , Humans , Needs Assessment , Outcome and Process Assessment, Health Care
11.
Cardiology ; 140(2): 115-123, 2018.
Article in English | MEDLINE | ID: mdl-29966126

ABSTRACT

OBJECTIVES: Mitigating the gastrointestinal (GI) bleeding risks of dual antiplatelet therapy (DAPT) is a common clinical concern. While proton pump inhibitors (PPIs) remain the most effective therapy, their adverse events warrant considering alternatives, including Histamine 2 receptor antagonists (H2RAs). METHODS: We searched for randomized controlled trials in MEDLINE, EMBASE, PubMed, and Cochrane Central Register of Controlled Trials, published from 1980 to 2016. After screening, 10 trials were eligible. We compared PPIs to H2RAs in patients on DAPT in terms of 2 clinical and one laboratory outcomes; GI complications, major adverse cardiovascular events (MACE) and high on-treatment platelet reactivity (HTPR). Clinical and statistical inter-study heterogeneity was low for all 3 outcomes (I2 = 0%, p > 0.05 for all). RESULTS: Fixed effects meta-analysis suggested that PPIs were superior to H2RAs in preventing GI complications (OR 0.28, 95% CI 0.17-0.48) but with higher risk of HTPR (OR 1.28, 95% CI 1.030-1.60) though without a higher incidence of MACE (OR 0.99, 95% CI 0.55-1.77). CONCLUSIONS: PPIs are superior to H2RAs for gastroprotection in patients on DAPT. However, PPIs are associated with HTPR, with no significant difference demonstrated in MACE. Based on currently available data, the use of PPIs may be warranted in selected patients on DAPT deemed at risk for GI complications.


Subject(s)
Coronary Artery Disease/drug therapy , Gastrointestinal Hemorrhage/chemically induced , Gastrointestinal Hemorrhage/prevention & control , Histamine H2 Antagonists/therapeutic use , Platelet Aggregation Inhibitors/adverse effects , Proton Pump Inhibitors/therapeutic use , Histamine H2 Antagonists/adverse effects , Humans , Platelet Aggregation Inhibitors/therapeutic use , Proton Pump Inhibitors/adverse effects , Randomized Controlled Trials as Topic , Receptors, Histamine H2/therapeutic use , Treatment Outcome
12.
Perspect Med Educ ; 7(3): 182-191, 2018 06.
Article in English | MEDLINE | ID: mdl-29796976

ABSTRACT

INTRODUCTION: Assessment in Medical Education fills many roles and is under constant scrutiny. Assessments must be of good quality, and supported by validity evidence. Given the high-stakes consequences of assessment, and the many audiences within medical education (e. g., training level, specialty-specific), we set out to document the breadth, scope, and characteristics of the literature reporting on validation of assessments within medical education. METHOD: Searches in Medline (Ovid), Web of Science, ERIC, EMBASE (Ovid), and PsycINFO (Ovid) identified articles reporting on assessment of learners in medical education published since 1999. Included articles were coded for geographic origin, journal, journal category, targeted assessment, and authors. A map of collaborations between prolific authors was generated. RESULTS: A total of 2,863 articles were included. The majority of articles were from the United States, with Canada producing the most articles per medical school. Most articles were published in journals with medical categorizations (73.1% of articles), but Medical Education was the most represented journal (7.4% of articles). Articles reported on a variety of assessment tools and approaches, and 89 prolific authors were identified, with a total of 228 collaborative links. DISCUSSION: Literature reporting on validation of assessments in medical education is heterogeneous. Literature is produced by a broad array of authors and collaborative networks, reported to a broad audience, and is primarily generated in North American and European contexts. Our findings speak to the heterogeneity of the medical education literature on assessment validation, and suggest that this heterogeneity may stem, at least in part, from differences in constructs measured, assessment purposes, or conceptualizations of validity.


Subject(s)
Education, Medical/standards , Reproducibility of Results , Bibliometrics , Humans , Program Evaluation/methods , Program Evaluation/trends
13.
J Med Libr Assoc ; 104(4): 267-277, 2016 Oct.
Article in English | MEDLINE | ID: mdl-27822147

ABSTRACT

OBJECTIVE: A critical element in conducting a systematic review is the identification of studies. To date, very little empirical evidence has been reported on whether the presence of a librarian or information professional can contribute to the quality of the final product. The goal of this study was to compare the reporting rigor of the literature searching component of systematic reviews with and without the help of a librarian. METHOD: Systematic reviews published from 2002 to 2011 in the twenty highest impact factor pediatrics journals were collected from MEDLINE. Corresponding authors were contacted via an email survey to determine if a librarian was involved, the role that the librarian played, and functions that the librarian performed. The reviews were scored independently by two reviewers using a fifteen-item checklist. RESULTS: There were 186 reviews that met the inclusion criteria, and 44% of the authors indicated the involvement of a librarian in conducting the systematic review. With the presence of a librarian as coauthor or team member, the mean checklist score was 8.40, compared to 6.61 (p<0.001) for reviews without a librarian. CONCLUSIONS: Findings indicate that having a librarian as a coauthor or team member correlates with a higher score in the literature searching component of systematic reviews.


Subject(s)
Evidence-Based Medicine/methods , Librarians , Pediatrics , Review Literature as Topic , Child , Humans , Pediatrics/methods , Pediatrics/standards , Professional Role , Surveys and Questionnaires
14.
Med Educ ; 50(3): 285-99, 2016 Mar.
Article in English | MEDLINE | ID: mdl-26896014

ABSTRACT

OBJECTIVES: The rise of medical humanities teaching in medical education has introduced pressure to prove efficacy and utility. Review articles on the available evidence have been criticised for poor methodology and unwarranted conclusions. To support a more nuanced discussion of how the medical humanities work, we conducted a scoping review of quantitative studies of medical humanities teaching. METHODS: Using a search strategy involving MEDLINE, EMBASE and ERIC, and hand searching, our scoping review located 11 045 articles that referred to the use of medical humanities teaching in medical education. Of these, 62 studies using quantitative evaluation methods were selected for review. Three iterations of analysis were performed: descriptive, conceptual, and discursive. RESULTS: Descriptive analysis revealed that the medical humanities as a whole cannot be easily systematised based on simple descriptive categories. Conceptual analysis supported the development of a conceptual framework in which the foci of the arts and humanities in medical education can be mapped alongside their related epistemic functions for teaching and learning. Within the framework, art functioned as expertise, as dialogue or as a means of expression and transformation. In the discursive analysis, we found three main ways in which the relationship between the arts and humanities and medicine was constructed as, respectively, intrinsic, additive and curative. CONCLUSIONS: This review offers a nuanced framework of how different types of medical humanities work. The epistemological assumptions and discursive positioning of medical humanities teaching frame the forms of outcomes research that are considered relevant to curriculum decision making, and shed light on why dominant review methodologies make some functions of medical humanities teaching visible and render others invisible. We recommend the use of this framework to improve the rigor and relevance of future explorations of the efficacy and utility of medical humanities teaching.


Subject(s)
Education, Medical , Humanities/education , Narration , Curriculum , Qualitative Research
15.
J Med Libr Assoc ; 100(2): 104-12, 2012 Apr.
Article in English | MEDLINE | ID: mdl-22514506

ABSTRACT

OBJECTIVE: The research provides an understanding of pandemic information needs and informs professional development initiatives for librarians in disaster medicine. METHODS: Utilizing a multisite, comparative case series design, the researchers conducted semi-structured interviews and examined supplementary materials in the form of organizational documents, correspondence, and websites to create a complete picture of each case. The rigor of the case series was ensured through data and investigator triangulation. Interview transcripts were coded using NVivo to identify common themes and points of comparison. RESULTS: Comparison of the four cases revealed a distinct difference between "client-initiated" and "librarian-initiated" provision of pandemic information. Librarian-initiated projects utilized social software to "push" information, whereas client-initiated projects operated within patron-determined parameters to deliver information. Health care administrators were identified as a key audience for pandemic information, and news agencies were utilized as essential information sources. Librarians' skills at evaluating available information proved crucial for selecting best-quality evidence to support administrative decision making. CONCLUSIONS: Qualitative analysis resulted in increased understanding of pandemic information needs and identified best practices for disseminating information during periods of high organizational stress caused by an influx of new cases of an unknown infectious disease.


Subject(s)
Communicable Diseases/epidemiology , Disaster Medicine/organization & administration , Information Dissemination/methods , Libraries, Medical/organization & administration , Pandemics/prevention & control , Evidence-Based Medicine/methods , Evidence-Based Medicine/organization & administration , Librarians , Ontario , Practice Guidelines as Topic , Professional Role
16.
PLoS Genet ; 1(6): e74, 2005 Dec.
Article in English | MEDLINE | ID: mdl-16362077

ABSTRACT

The Src substrate associated in mitosis of 68 kDa (Sam68) is a KH-type RNA binding protein that has been shown to regulate several aspects of RNA metabolism; however, its physiologic role has remained elusive. Herein we report the generation of Sam68-null mice by homologous recombination. Aged Sam68-/- mice preserved their bone mass, in sharp contrast with 12-month-old wild-type littermates in which bone mass was decreased up to approximately 75%. In fact, the bone volume of the 12-month-old Sam68-/- mice was virtually indistinguishable from that of 4-month-old wild-type or Sam68-/- mice. Sam68-/- bone marrow stromal cells had a differentiation advantage for the osteogenic pathway. Moreover, the knockdown of Sam68 using short hairpin RNA in the embryonic mesenchymal multipotential progenitor C3H10T1/2 cells resulted in more pronounced expression of the mature osteoblast marker osteocalcin when differentiation was induced with bone morphogenetic protein-2. Cultures of mouse embryo fibroblasts generated from Sam68+/+ and Sam68-/- littermates were induced to differentiate into adipocytes with culture medium containing pioglitazone and the Sam68-/- mouse embryo fibroblasts shown to have impaired adipocyte differentiation. Furthermore, in vivo it was shown that sections of bone from 12-month-old Sam68-/- mice had few marrow adipocytes compared with their age-matched wild-type littermate controls, which exhibited fatty bone marrow. Our findings identify endogenous Sam68 as a positive regulator of adipocyte differentiation and a negative regulator of osteoblast differentiation, which is consistent with Sam68 being a modulator of bone marrow mesenchymal cell differentiation, and hence bone metabolism, in aged mice.


Subject(s)
Adaptor Proteins, Signal Transducing/physiology , DNA-Binding Proteins/physiology , Osteoporosis/genetics , Phosphoproteins/physiology , RNA-Binding Proteins/physiology , Adipocytes/cytology , Animals , Bone Marrow Cells/cytology , Cell Differentiation , Female , Fibroblasts/metabolism , Humans , Male , Mice , Mice, Inbred C3H , Mice, Transgenic , Osteoblasts/cytology , Osteocalcin/genetics , Recombination, Genetic
SELECTION OF CITATIONS
SEARCH DETAIL
...