Teamwork baseline assessment tool: Sparking teamwork dialogues in health professions training

WHAT WAS THE EDUCATIONAL CHALLENGE?

A major challenge in health professions education is to equip graduates with essential teamwork skills, addressing cognitive, motivational, and emotional barriers that hinder effective collaboration among students from diverse backgrounds.

WHAT WAS THE SOLUTION AND HOW WAS THIS IMPLEMENTED?

The Teamwork Baseline Assessment Tool (TBAT) was developed as an innovative solution to teach collaboration and teamwork, focusing on growth mindsets, reactions to challenging scenarios, and ideal team player attributes. Implemented during the orientation for new first-year students, TBAT facilitated early engagement in teamwork discussions, with students receiving personalised reports to aid in self-reflection and development.

WHAT LESSONS WERE LEARNED?

Key lessons included the importance of initiating teamwork conversations early, the value of personalised feedback in promoting self-awareness and peer understanding, and the effectiveness of TBAT in providing instructors with insights into students' teamwork aptitudes.

WHAT ARE THE NEXT STEPS?

Expanding TBAT across various student populations and integrating it into the curriculum aims to provide continuous opportunities for applying and reinforcing teamwork and collaboration skills. This strategy will support the development of targeted instructional approaches, fostering a collaborative learning environment and preparing students for the teamwork challenges in healthcare settings.

Designing an Interprofessional Online Course to Foster Learning Health Systems

The Learning Health Systems (LHS) framework demonstrates the potential for iterative interrogation of health data in real time and implementation of insights into practice. Yet, the lack of appropriately skilled workforce results in an inability to leverage existing data to design innovative solutions. We developed a tailored professional development program to foster a skilled workforce. The short course is wholly online, for interdisciplinary professionals working in the digital health arena. To transform healthcare systems, the workforce needs an understanding of LHS principles, data driven approaches, and the need for diversly skilled learning communities that can tackle these complex problems together.

A scoping review of therapeutic reasoning process research

Therapeutic reasoning is when the purpose, task, or goal for engaging in reasoning is to determine the patient's management plan. As the field's understanding of the process of therapeutic reasoning is less well understood, we focused on studies that collected data on the process of therapeutic reasoning. To synthesize previous studies of therapeutic reasoning characteristics, methodological approaches, theoretical underpinnings, and results. We conducted a scoping review with systematic searching for English language articles with no date limits. Databases included MEDLINE, CINAHL Plus, Scopus, Embase, Proquest Dissertations and Theses Global, and ERIC. Search terms captured therapeutic reasoning in health professions education research. Initial search yielded 5450 articles. The title and abstract screening yielded 180 articles. After full-text review, 87 studies were included in this review. Articles were excluded if they were outside health professions education, did not collect data on the process of therapeutic reasoning, were not empirical studies, or not focused on therapeutic reasoning. We analyzed the included articles according to scoping questions using qualitative content analysis. 87 articles dated from 1987 to 2019 were included. Several study designs were employed including think-aloud protocol, interview and written documentation. More than half of the articles analyzed the data using qualitative coding. Authors often utilized several middle-range theories to explain therapeutic reasoning processes. The hypothetico-deductive model was most frequently mentioned. The included articles rarely built off the results from previous studies. Six key result categories were found: identifying themes, characterizing and testing previous local theory, exploring factors, developing new local theory, testing tools, and testing hypothesis. Despite the cast body of therapeutic reasoning research, individual study results remain isolated from previous studies. Our future recommendations include synthesizing pre-existing models, developing novel methodologies, and investigating other aspects of therapeutic reasoning.

An introduction to text analytics for educators

OUR SITUATION

Educators often find themselves in possession of large amounts of text-based materials, such as student reflections, narrative feedback, and assignments. While these materials can provide critical insight into topics of interest, they also require a substantial amount of time to read, interpret, and use. The purpose of this article is to describe and provide recommendations for text analytics.

METHODOLOGICAL LITERATURE REVIEW

An overview of text analytics is provided, including a brief history, common types of contemporary techniques, and the basic phases of text analytics. Several examples of common text analytics techniques are used to illustrate this approach.

OUR RECOMMENDATIONS AND THEIR APPLICATIONS

Practical recommendations are provided to support the use of text analytics in pharmacy education. These recommendations include: (1) clarify the purpose of the text analytics; (2) ensure the research questions are relevant and grounded in the literature; (3) develop a processing strategy and create a dictionary; (4) explore various tools for analysis and visualization; (5) establish tolerance for error; (6) train, calibrate, and validate the analytic strategy; and (7) collaborate and equip yourself.

POTENTIAL IMPACT

Text analytics provide a systematic approach to generating information from text-based materials. Several benefits to this approach are apparent, such as improving the efficiency of analyzing text and elucidating new knowledge. Despite recent developments in text analytics techniques, limitations to this approach remain. Efforts to improve usability and accessibility of text analytics remain ongoing, and pharmacy educators should position their work within the context of these limitations.

Fostering the use of Learning Health Systems through a fellowship program for interprofessional clinicians

Introduction

Methods

Results

Conclusion

Understanding Health Care Graduates' Conceptualizations of Transitions: A Longitudinal Qualitative Research Study

PURPOSE

Although transitions have been defined in various ways in the higher education literature (e.g., inculcation, development, becoming), little research exists exploring health care learners' conceptualizations of transitions across their transition from final year to new graduate. How they understand transitions is important because such conceptualizations will shape how they navigate their transitions and vice versa.

METHOD

The authors conducted a 3-month longitudinal qualitative research study with 35 health care learners from 4 disciplines (medicine, dietetics, nursing, and pharmacy) across their final year to new graduate transition to explore how they conceptualized transitions. Data collection occurred between July 2019 and April 2020 at Monash University in Victoria, Australia. The authors employed framework analysis to interrogate the interview and longitudinal audio diary data cross-sectionally and longitudinally.

RESULTS

The authors found 10 different conceptualizations of transitions broadly categorized as time bound and linear (one-off events, systems, linear, adaptation, linked to identities), ongoing and complex (ongoing processes, multifaceted, complex), or related to transition shock (labor, linked to emotions). The adaptation conceptualization increased in dominance over time, the linear conceptualization was more apparent in the interviews (time points 1 and 3), and the multifaceted and emotion-linked conceptualizations were more dominant in the longitudinal audio diaries (time point 2).

CONCLUSIONS

This novel study illustrates conceptualizations of transitions as broadly consistent with existing higher education literature but extends this research considerably by identifying differences in conceptualizations across time. The authors encourage health care learners, educators, and policy makers to develop expanded and more sophisticated understandings of transitions to ensure that health care learners can better navigate often challenging graduate transitions. Further research should explore stakeholders' transition conceptualizations over lengthier durations beyond the new graduate transition.

WITHDRAWN: Designing a professional development online short course to foster Learning Healthcare Systems

This article has been withdrawn: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). This article has been withdrawn at the request of the editor and publisher. The publisher regrets that an error occurred which led to the premature publication of this paper. This error bears no reflection on the article or its authors. The publisher apologizes to the authors and the readers for this unfortunate error.

Exploring health care graduates' conceptualisations of preparedness for practice: A longitudinal qualitative research study

INTRODUCTION

Although preparedness for practice (P4P) has been variously described, little shared understanding exists about what P4P is across the health professions. How P4P is conceptualised matters, because this shapes how stakeholders think, talk about and act towards it. Further, multiple understandings can result in diverse expectations for graduate performance. This study therefore explores health care learners' solicited and unsolicited conceptualisations of P4P over their early graduate transition.

METHODS

We conducted longitudinal qualitative research including individual and group entrance interviews (phase 1: n = 35), longitudinal audio-diaries (phase 2: n = 30), and individual and group exit interviews (phase 3: n = 22) with learners from four disciplines (dietetics, medicine, nursing and pharmacy). We employed framework analysis to interrogate data cross-sectionally and longitudinally.

RESULTS

We found 13 conceptualisations of P4P (eg knowledge, confidence), broadly similar across the disciplines. We found some conceptualisations dominant in both solicited and unsolicited talk (eg skills), some dominant only in solicited talk (eg competence) and others dominant only in unsolicited talk (eg experience). Although most conceptualisations appeared relatively stable across time, some appeared to dominate at certain time points only (eg employability and skills in phases 1 and 2, and competence in phase 3).

DISCUSSION

This novel study extends previous uniprofessional work by illustrating a broader array of conceptualisations, differences between professions, solicited versus unsolicited talk and longitudinal cohort patterns. We encourage health care educators to discuss these different P4P understandings in graduate transition interventions. Further research is needed to explore other stakeholders' conceptualisations, and over a duration beyond the early graduate transition.

How Pharmacist Preceptors Foster Students' Therapeutic Reasoning Using the One-Minute Preceptor Method

Objective. To compare whether preceptors trained in the One-Minute Preceptor (OMP) method versus preceptors not trained in the OMP method use OMP methods, and whether their students demonstrate more frequent expression of therapeutic reasoning processes during case presentations. Methods. A pilot quasi-experimental study was conducted. In 2015, four preceptors attended an OMP training session. The OMP preceptors and three preceptors not trained in OMP were asked to collect audio recordings of their students presenting patient cases. The audio recordings were coded for preceptors' use of OMP methods and students' expression of therapeutic reasoning processes. Results. In total, we collected 42 audio recordings from 27 students presenting a patient case to one of seven preceptors. Preceptors trained in OMP more frequently asked students to commit to a therapeutic assessment and plan, probed for their supporting reasoning, and reinforced what was done well. However, non-OMP preceptors' students more frequently articulated assessments and treatment plans in their case presentations. The non-OMP students also more frequently initiated discussion about the reasoning behind their assessments and plans without prompting from their preceptor. Conclusion. Implementing OMP workshops for preceptors to elicit students' therapeutic reasoning processes requires further consideration. Future research is needed on pragmatic and effective precepting methods.

Bridging disciplines to advance elasmobranch conservation: applications of physiological ecology

A strength of physiological ecology is its incorporation of aspects of both species' ecology and physiology; this holistic approach is needed to address current and future anthropogenic stressors affecting elasmobranch fishes that range from overexploitation to the effects of climate change. For example, physiology is one of several key determinants of an organism's ecological niche (along with evolutionary constraints and ecological interactions). The fundamental role of physiology in niche determination led to the development of the field of physiological ecology. This approach considers physiological mechanisms in the context of the environment to understand mechanistic variations that beget ecological trends. Physiological ecology, as an integrative discipline, has recently experienced a resurgence with respect to conservation applications, largely in conjunction with technological advances that extended physiological work from the lab into the natural world. This is of critical importance for species such as elasmobranchs (sharks, skates and rays), which are an especially understudied and threatened group of vertebrates. In 2017, at the American Elasmobranch Society meeting in Austin, Texas, the symposium entitled `Applications of Physiological Ecology in Elasmobranch Research' provided a platform for researchers to showcase work in which ecological questions were examined through a physiological lens. Here, we highlight the research presented at this symposium, which emphasized the strength of linking physiological tools with ecological questions. We also demonstrate the applicability of using physiological ecology research as a method to approach conservation issues, and advocate for a more available framework whereby results are more easily accessible for their implementation into management practices.

Design-based research: Connecting theory and practice in pharmacy educational intervention research

OUR SITUATION

Interventional research in pharmacy education includes the study of complex challenges that can be difficult to navigate. Design-based research (DBR), is a systematic and iterative approach to interventional research that is attentive to the practical and theoretical contributions to education. Practical contributions include the creation of novel solutions to complex problems that improve learning while theoretical contributions include refining our understanding of context-specific learning. In this paper, we describe how we addressed challenges associated with student collaboration in pharmacy education by applying DBR to bridge theory and practice.

METHODOLOGICAL LITERATURE REVIEW

DBR is characterized as authentic, contextually aware, collaborative, theoretically focused, methodologically diverse, practical, iterative, and operation-oriented. DBR includes three iterative phases: (1) analysis and exploration, (2) design and construction, and (3) evaluation and reflection.

OUR RECOMMENDATIONS AND THEIR APPLICATIONS

To integrate DBR into interventional research, scholars should work collaboratively with diverse teams of experts. DBR also requires extensive planning, a toolkit of expansive research methodologies, and attention to practical and theoretical considerations. Finally, scholars should share their work as often as possible and engage in creative exercises to promote innovative solutions to challenges in education.

POTENTIAL IMPACT

DBR offers an approach to generate practical, theoretical, and scholarly contributions to pharmacy education research. In summary, DBR can aid pharmacy educational scholars by using a flexible, iterative, and systematic process to generate novel and creative solutions to complex problems.

Reducing Dermal Exposure to Agrochemical Carcinogens Using a Fluorescent Dye-Based Intervention Among Subsistence Farmers in Rural Honduras

Background: Occupational exposure to agrochemicals, some of which are known or suspected carcinogens, is a major health hazard for subsistence agricultural workers and their families. These impacts are more prevalent in low-and-middle income countries (LMICs) due to weak regulations, lack of awareness of the risks of contamination, general lack of personal protective equipment (PPE), and low literacy about proper agrochemical application techniques. Fluorescent tracer dyes have been described as a means of visualizing and quantifying dermal exposure to agricultural chemicals, and dye techniques adapted for LMICs have been developed previously. These tracer dyes have also been used in educational demonstrations about pesticide safety. However, studies evaluating the efficacy of these educational dye interventions in reducing exposure have been lacking. Aim: To evaluate whether observing one's own chemical contamination after applying agrochemicals changed the amount of occupational dermal exposure during a subsequent chemical application. Methods: We used a multimodal community intervention in a rural village in Honduras that incorporated chemical safety education and use of a fluorescent tracer dye during pesticide application and compared dermal exposure between the intervention group (previous dye experience and safety education) and the control group (safety education only). Results: Mean total visual score (TVS) of the tracer dye, which accounts for both extent and intensity of contamination, was lower among those who had previously experienced the dye intervention (mean TVS=41.3) than among participants who were dye-naïve (mean TVS=78.4), with a difference between means of -37.10 (95% CI [-66.26, -7.95], P = 0.02). Conclusion: That workers who had experienced the dye demonstration once before were significantly less contaminated on average when compared with the dye-naïve group indicates that a multimodal community intervention that utilizes fluorescent dye visualization may be effective in reducing dermal exposure to carcinogenic agrochemicals among subsistence farmers in LMICs.

Student and School-level Predictors of Pharmacy Residency Attainment

Objective. To identify student and school level predictors of pharmacy residency attainment. Methods. Data were collected from the American Association of Colleges of Pharmacy (AACP) and the Carnegie Classification of Institutions of Higher Education. Logistic multilevel modeling was used to examine the effects of select student and school level characteristics on pharmacy residency attainment, as indicated by students on the AACP Graduating Student Survey (GSS) from 2013 to 2015. Results. The dataset included 24,351 graduating pharmacy students from 101 schools and colleges of pharmacy. Predictors of residency attainment included working in an institutional pharmacy, female gender, student age, school age, and Research I classification. Nonsignificant variables included curriculum type, class size, and institutional control. Conclusion. Student and pharmacy school characteristics impact the likelihood of pharmacy residency attainment. Further research is needed to understand the mechanisms associated with these effects.

Cognitive apprenticeship in health sciences education: a qualitative review

Cognitive apprenticeship theory emphasizes the process of making expert thinking "visible" to students and fostering the cognitive and meta-cognitive processes required for expertise. The purpose of this review was to evaluate the use of cognitive apprenticeship theory with the primary aim of understanding how and to what extent the theory has been applied to the design, implementation, and analysis of education in the health sciences. The initial search yielded 149 articles, with 45 excluded because they contained the term "cognitive apprenticeship" only in reference list. The remaining 104 articles were categorized using a theory talk coding scheme. An in depth qualitative synthesis and review was conducted for the 26 articles falling into the major theory talk category. Application of cognitive apprenticeship theory tended to focus on the methods dimension (e.g., coaching, mentoring, scaffolding), with some consideration for the content and sociology dimensions. Cognitive apprenticeship was applied in various disciplines (e.g., nursing, medicine, veterinary) and educational settings (e.g., clinical, simulations, online). Health sciences education researchers often used cognitive apprenticeship to inform instructional design and instrument development. Major recommendations from the literature included consideration for contextual influences, providing faculty development, and expanding application of the theory to improve instructional design and student outcomes. This body of research provides critical insight into cognitive apprenticeship theory and extends our understanding of how to develop expert thinking in health sciences students. New research directions should apply the theory into additional aspects of health sciences educational research, such as classroom learning and interprofessional education.

Inhibition of Dipeptidyl-Peptidase IV Does Not Increase Circulating IGF-1 Concentrations in Growing Pigs

The enzyme dipeptidyl peptidase-IV (DPP-IV) inactivates a variety of bioactive peptides, including glucagon-like peptide-1 (GLP-1) and growth hormone releasing hormone (GHRH). Inhibiting DPP-IV in order to increase circulating GLP-1 is of interest as a treatment for Type II diabetes. Inactivation of DPP-IV may also increase circulating GHRH, potentially enhancing growth in domestic animals. To test the hypothesis that inhibition of DPP-IV activity will influence the growth hormone/IGF-1 axis, growing pigs (Sus scrofa domesticus, 78 kg) were treated with a DPP-IV inhibitor (Compound 1, the 2,5-difluorophenyl analog of the triazolopiperazine MK0431, sitagliptin), and plasma concentrations of IGF-1 were monitored. Pigs were administered either sterile saline (0.11 ml/kg followed by a continuous infusion at 2 ml/hr for 72 hrs, controls, n = 2), Compound 1 (2.78 mg/kg followed by a continuous infusion at 0.327 mg/kg·hr for 72 hrs, n = 4) or GHRH (0.11 ml/kg sterile saline, followed by a continuous infusion of GHRH at 2.5 μg/kg hr for 48 hrs, n = 4). Plasma concentrations of Compound 1 were maintained at 1 μM, which resulted in a 90% inhibition of circulating DPP-IV activity. Relative to the predose 24-hr period, area under the IGF-1 concentration curve (AUC) tended to be lower (P = 0.062) with Compound 1 (–79 ± 130 ng/ml hr) than controls (543 ± 330 ng/ml hr). GHRH treatment increased the IGF-1 AUC (1210 ± 160 ng/ml hr, P = 0.049 vs. controls and P = 0.001 vs. Compound 1). We conclude that inhibition of DPP-IV does not alter the circulating levels of IGF-1 in the growing pig.

A Study of Layered Learning in Oncology

Objective. To explore use of pharmacy learners as a means to expand pharmacy services in a layered learning practice model (LLPM), to examine whether an LLPM environment precludes achievement of knowledge-based learning objectives, and to explore learner perception of the experience. Design. An acute care oncology pharmacy practice experience was redesigned to support the LLPM. Specifically, the redesign focused on micro discussion, standardized feedback (eg, rubrics), and cooperative learning to enhance educational gain through performing clinical activities. Assessment. Posttest scores evaluating knowledge-based learning objectives increased in mean percentage compared to pretest values. Learners viewed the newly designed practice experience positively with respect to perceived knowledge attainment, improved clinical time management skills, contributions to patient care, and development of clinical and self-management skills. A fifth theme among students, comfort with learning, was also noted. Conclusion. Layered learning in an oncology practice experience was well-received by pharmacy learners. Data suggest a practice experience in the LLPM environment does not preclude achieving knowledge-based learning objectives and supports further studies of the LLPM.

Development of a global hospital self-assessment tool and prioritization tier system based on FIP's Basel Statements

Objectives

The objective of this study was to develop and pilot a hospital self-assessment tool and prioritization system for hospitals to evaluate their pharmacy practice performance against the International Pharmaceutical Federation (FIP)'s Basel Statements.

Methods

To develop the self-assessment tool, we reviewed the Basel statements to identify characteristics that could be measured at the individual hospital level and finalized these based on feedback from five cognitive interviews. The survey instrument was pilot tested in four countries; two high-, one lower middle- and one low-income country. Participants were electronically sent the survey tool and enrolled through the snowball sampling method. Tiers were developed by investigators to assist hospitals in prioritizing the achievement of Basel Statement practices. Tiers were validated by the Hospital Section chairs of FIP through a card sorting exercise. Simple agreement and Cohen's kappa was used to characterize inter-rater reliability. Descriptive statistics were used to characterize the responses.

Key findings

Forty-four survey responses were collected from 36 hospitals in four countries. The survey response rate was 29% and took an average of 26 minutes to complete. The overall average agreement of constructs was 83%. The survey characterized how far a hospital was to achieving the Basel Statement practices with an average achievement rate of 57% (ranging from 30% to 90%). The survey highlighted medication safety challenges facing the pharmacy profession. The results produced a benchmarking report for each respondent.

Conclusions

The results support the validity and reliability of the survey tool. This comprehensive survey tool can be used by institutions to track their progress towards achieving the Basel Statement practices.

Insights into the life history and ecology of a large shortfin mako shark Isurus oxyrinchus captured in southern California

In June 2013, a record-breaking female Isurus oxyrinchus (total length 373 cm, mass 600 kg) was captured by rod and reel off Huntington Beach, California, where it was subsequently donated to research and provided a rare opportunity to collect the first data for a female I. oxyrinchus of this size. Counts of vertebral band pairs estimate the shark to have been c. 22 years old, depending upon assumptions of band-pair deposition rates, and the distended uteri and spent ovaries indicated that this shark had recently given birth. The stomach contained a c. 4 year-old female California sea lion Zalophus californianus that confirmed the high trophic position of this large I. oxyrinchus, which was corroborated with the high levels of measured contaminants and tissue isotope analyses.

Insulin resistance and gray matter volume in neurodegenerative disease

The goal of this study was to compare insulin resistance in aging and aging-related neurodegenerative diseases, and to determine the relationship between insulin resistance and gray matter volume (GMV) in each cohort using an unbiased, voxel-based approach. Insulin resistance was estimated in apparently healthy elderly control (HC, n=21) and neurodegenerative disease (Alzheimer's disease (AD), n=20; Parkinson's disease (PD), n=22) groups using Homeostasis Model Assessment of Insulin Resistance 2 (HOMA2) and intravenous glucose tolerance test (IVGTT). HOMA2 and GMV were assessed within groups through General Linear Model multiple regression. We found that HOMA2 was increased in both AD and PD compared to the HC group (HC vs. AD, p=0.002, HC vs. PD, p=0.003), although only AD subjects exhibited increased fasting glucose (p=0.005). Furthermore, our voxel-based morphometry analysis revealed that HOMA2 was related to GMV in all cohorts in a region-specific manner (p<0.001, uncorrected). Significant relationships were observed in the medial prefrontal cortex (HC), medial temporal regions (AD), and parietal regions (PD). Finally, the directionality of the relationship between HOMA2 and GMV was disease-specific. Both HC and AD subjects exhibited negative relationships between HOMA2 and brain volume (increased HOMA2 associated with decreased brain volume), while a positive relationship was observed in PD. This cross-sectional study suggests that insulin resistance is increased in neurodegenerative disease, and that individuals with AD appear to have more severe metabolic dysfunction than individuals with PD or PD dementia.

Advancing the use of community pharmacy quality measures: a qualitative study

OBJECTIVES

To describe consumers' ability to interpret pharmacy quality measures data presented in a report card, to examine the tools that consumers require to interpret the information available in a pharmacy quality report card, and to determine whether pharmacy quality measures influence consumers' choice of a pharmacy.

DESIGN

Qualitative study.

SETTING

Three semistructured focus groups conducted in a private meeting space at a public library in Sioux Falls, SD, from April 2011 to May 2011.

PARTICIPANTS

29 laypeople.

INTERVENTION

Participants' skills interpreting and using pharmacy quality information were examined based on mock report cards containing the Pharmacy Quality Alliance (PQA) quality measures.

MAIN OUTCOME MEASURES

Consumer perceptions of pharmacy quality data.

RESULTS

Participants reported difficulty understanding quality measures because of knowledge deficits. They wanted supportive resources on drug class of their medications to help them understand the measures. Participants had different opinions on whether their pharmacies should be compared with other pharmacies based on specific quality measures. For example, they favored the use of drug-drug interactions as a quality measure for comparing pharmacies, while medication adherence was deemed of limited use for comparison. Participants stated that pharmacy report cards would be useful information but would not prompt a change in pharmacy. However, participants perceived that this information would be useful in selecting a new pharmacy.

CONCLUSION

The results suggest that consumers require simplification of PQA quality measures and supportive resources to interpret the measures. Consumers may favor certain quality measures based on their perception of the role of the pharmacist. Education is required before full use of this quality-of-care information can be realized.

New St. Jude Medical Portico™ transcatheter aortic valve: features and early results

Patients with symptomatic aortic valve disease who are inoperable or have high surgery-related risks may be treated with transcatheter aortic valve implantation devices. With this method increasingly applied, device innovations are aimed at achieving improved procedural results and therapeutic outcome. This paper describes the innovations implemented in the St. Jude Medical Portico™ system for transcatheter aortic valve implantation, the application of this system and initial clinical experience.

Determinants of skilled birth attendants for delivery in Nepal

This review is to explore the factors affecting the uptake of skilled birth attendants for delivery and the issues associated with women's role and choices of maternal health care service for delivery in Nepal. Literature was reviewed across the globe and discussed in a Nepalese context. Delivery by Skilled Birth Attendance serves as an indicator of progress towards reducing maternal mortality worldwide, the fifth Millennium Development Goal. Nepal has committed to reducing its maternal mortality by 75% by 2015 through ensuring accessibility to the availability and utilisation of skilled care at every birth. The literature suggests that several socio-economic, cultural and religious factors play a significant role in the use of Skilled Birth Attendance for delivery in Nepal. Availability of transportation and distance to the health facility; poor infrastructure and lack of services; availability and accessibility of the services; cost and convenience; staff shortages and attitudes; gender inequality; status of women in society; women's involvement in decision making; and women's autonomy and place of residence are significant contributing factors for uptake of Skilled Birth Attendance for delivery in Nepal. The review found more quantitative research studies exploring the determinants of utilisation of the maternal health services during pregnancy in Nepal than qualitative studies. Findings of quantitative research show that different social demographic, economic, socio-cultural and religious factors are responsible for the utilisation of maternal health services but very few studies discussed how and why these factors are responsible for utilisation of skilled birth attendants in pregnancy. It is suggested that there is need for more qualitative research to explore the women's role and choice regarding use of skilled birth attendants services and to find out how and why these factors are responsible for utilisation of skilled birth attendants for delivery. Qualitative research will help further exploration of the issues and contribute to improvement of maternal health services.

The sensitivity, specificity and predictive values of raised plasma metal ion levels in the diagnosis of adverse reaction to metal debris in symptomatic patients with a metal-on-metal arthroplasty of the hip

Plasma levels of cobalt and chromium ions and Metal Artefact Reduction Sequence (MARS)-MRI scans were performed on patients with 209 consecutive, unilateral, symptomatic metal-on-metal (MoM) hip arthroplasties. There was wide variation in plasma cobalt and chromium levels, and MARS-MRI scans were positive for adverse reaction to metal debris (ARMD) in 84 hips (40%). There was a significant difference in the median plasma cobalt and chromium levels between those with positive and negative MARS-MRI scans (p < 0.001). Compared with MARS-MRI as the potential reference standard for the diagnosis of ARMD, the sensitivity of metal ion analysis for cobalt or chromium with a cut-off of > 7 µg/l was 57%. The specificity was 65%, positive predictive value was 52% and the negative predictive value was 69% in symptomatic patients. A lowered threshold of > 3.5 µg/l for cobalt and chromium ion levels improved the sensitivity and negative predictive value to 86% and 74% but at the expense of specificity (27%) and positive predictive value (44%).

Metal ion analysis is not recommended as a sole indirect screening test in the surveillance of symptomatic patients with a MoM arthroplasty. The investigating clinicians should have a low threshold for obtaining cross-sectional imaging in these patients, even in the presence of low plasma metal ion levels.

Clinical considerations for increasing occlusal vertical dimension: a review

The purpose of this article is to discuss the clinical considerations related to increasing the occlusal vertical dimension (OVD) when restoring a patient's dentition. Thorough extraoral and intraoral evaluations are mandatory to assess the suitability of increasing OVD. In the literature, multiple techniques have been proposed to quantify OVD loss. However, the techniques lack consistency and reliability, which in turn affects the decision of whether to increase the OVD. Therefore, increasing OVD should be determined on the basis of the dental restorative needs and aesthetic demands. In general, a minimal increase in OVD should be applied, though a 5 mm maximum increase in OVD can be justified to provide adequate occlusal space for the restorative material and to improve anterior teeth aesthetics. The literature reflects the safety of increasing the OVD permanently, and although signs and symptoms may develop, these are usually of an interim nature. Whenever indicated, the increase in OVD should be achieved with fixed restorations rather than a removable appliance, due to the predictable patient adaptation. The exception to this is for patients with TMD, where increasing the OVD should still be achieved using removable appliances to control TMD-associated symptoms before considering any form of irreversible procedure.

Malreduction of syndesmosis--are we considering the anatomical variation?

Previous studies have demonstrated the need for accurate reduction of ankle syndesmosis. Measurement of syndesmosis is difficult on plain radiographs. A computed tomography (CT) scan allows better visualisation of the transverse relationship between the fibula and incisura fibularis. The difference ('G' a term we coined for ease of description) between the fibula and the anterior and posterior facets of the incisura fibularis was compared between normal and injured ankles following syndesmotic fixation in 19 patients. The mean diastasis (MD) was also calculated, representing the average measurement between the fibula and the anterior and posterior incisura. When compared with the normal side, eight out of 19 (42%) cases were found to have a residual diastasis even after fixation across the syndesmosis. However, if a standard value of G (2mm) was used for the injured leg only, all of the 19 cases would have abnormal values of 'G' following reduction. Our study has clearly demonstrated the need for individualising the assessment method to guide surgeons and radiologists prior to revision surgery. A standard value of 'G' of 2mm as the normal limit cannot be applied universally, as apparent from the data presented in this study.

Tooth wear and wear investigations in dentistry

Tooth wear has been recognised as a major problem in dentistry. Epidemiological studies have reported an increasing prevalence of tooth wear and general dental practitioners see a greater number of patients seeking treatment with worn dentition. Although the dental literature contains numerous publications related to management and rehabilitation of tooth wear of varying aetiologies, our understanding of the aetiology and pathogenesis of tooth wear is still limited. The wear behaviour of dental biomaterials has also been extensively researched to improve our understanding of the underlying mechanisms and for the development of restorative materials with good wear resistance. The complex nature of tooth wear indicates challenges for conducting in vitro and in vivo wear investigations and a clear correlation between in vitro and in vivo data has not been established. The objective was to critically review the peer reviewed English-language literature pertaining to prevalence and aetiology of tooth wear and wear investigations in dentistry identified through a Medline search engine combined with hand-searching of the relevant literature, covering the period between 1960 and 2011.

Clinical trials in zirconia: a systematic review

Zirconia is unique in its polymorphic crystalline makeup, reported to be sensitive to manufacturing and handling processes, and there is debate about which processing method is least harmful to the final product. Currently, zirconia restorations are manufactured by either soft or hard-milling processes, with the manufacturer of each claiming advantages over the other. Chipping of the veneering porcelain is reported as a common problem and has been labelled as its main clinical setback. The objective of this systematic review is to report on the clinical success of zirconia-based restorations fabricated by both milling processes, in regard to framework fractures and veneering porcelain chipping. A comprehensive review of the literature was completed for in vivo trials on zirconia restorations in MEDLINE and PubMed between 1950 and 2009. A manual hand search of relevant dental journals was also completed. Seventeen clinical trials involving zirconia-based restorations were found, 13 were conducted on fixed partial dentures, two on single crowns and two on zirconia implant abutments, of which 11 were based on soft-milled zirconia and six on hard-milled zirconia. Chipping of the veneering porcelain was a common occurrence, and framework fracture was only observed in soft-milled zirconia. Based on the limited number of short-term in vivo studies, zirconia appears to be suitable for the fabrication of single crowns, and fixed partial dentures and implant abutments providing strict protocols during the manufacturing and delivery process are adhered to. Further long-term prospective studies are necessary to establish the best manufacturing process for zirconia-based restorations.

Clinical trials in zirconia: a systematic review

Zirconia is unique in its polymorphic crystalline makeup, reported to be sensitive to manufacturing and handling processes, and there is debate about which processing method is least harmful to the final product. Currently, zirconia restorations are manufactured by either soft or hard-milling processes, with the manufacturer of each claiming advantages over the other. Chipping of the veneering porcelain is reported as a common problem and has been labelled as its main clinical setback. The objective of this systematic review is to report on the clinical success of zirconia-based restorations fabricated by both milling processes, in regard to framework fractures and veneering porcelain chipping. A comprehensive review of the literature was completed for in vivo trials on zirconia restorations in MEDLINE and PubMed between 1950 and 2009. A manual hand search of relevant dental journals was also completed. Seventeen clinical trials involving zirconia-based restorations were found, 13 were conducted on fixed partial dentures, two on single crowns and two on zirconia implant abutments, of which 11 were based on soft-milled zirconia and six on hard-milled zirconia. Chipping of the veneering porcelain was a common occurrence, and framework fracture was only observed in soft-milled zirconia. Based on the limited number of short-term in vivo studies, zirconia appears to be suitable for the fabrication of single crowns, and fixed partial dentures and implant abutments providing strict protocols during the manufacturing and delivery process are adhered to. Further long-term prospective studies are necessary to establish the best manufacturing process for zirconia-based restorations.