Risk, regulation and offshore windfarms: Ways to manage environmental uncertainty and over-precaution

Globally there are concerns over a warming climate and the UK has declared a climate and ecological emergency and has an ambitious programme for the growth of offshore windfarms to contribute to commitments to achieving a legally binding Net Zero for greenhouse gas emissions by 2050. Offshore windfarm consenting is comparatively mature in the UK but evidence gaps to inform impact assessment and uncertainty to inform decision making has led to a precautionary approach that slows the speed of consent decisions. This paper examines the approach to UK offshore windfarm consenting, reviews the precautionary but risk-based approach that environmental decision makers have adopted in light of evidence gaps, and summarises how the collection of empirical data and reviews of evidence collected from operational windfarms has improved scientific knowledge and focussed decision making. A summary is also provided of the enduring legislative safeguards that apply during the lifetime of any consent and recommendations are made on the risk appetite that advisers and decision makers should adopt in view of policy that seeks to accelerate sectoral growth whilst enhancing nature recovery.

Just-in-time interprofessional training: lessons from the NHS Nightingale London

The Coronavirus 2019 (COVID-19) pandemic placed significant pressure on healthcare systems across the globe, with many clinicians redeployed in unfamiliar specialties or disciplines. In England, a just-in-time interprofessional training and education programme was rapidly established to upskill nearly 2,500 people who volunteered to work at the NHS Nightingale London Hospital. Of the 488 respondents in our evaluation, representing a 20% response rate, most felt confident and safe to start work in NHS Nightingale London. Key findings were: streaming of learners should be driven by predicted shared roles in the workplace and previous experience; in situ training to experience how teams work together in the real clinical setting was well received; and online learning should be focused on essential learning. A just-in-time interprofessional training programme can be effective in upskilling and redeploying healthcare staff in emergency situations, and can be useful for supporting staff redeployment or upskilling across the NHS more widely.

Core protocol for the adaptive Platform Trial In COVID-19 Vaccine priming and BOOsting (PICOBOO)

BACKGROUND

The need for coronavirus 2019 (COVID-19) vaccination in different age groups and populations is a subject of great uncertainty and an ongoing global debate. Critical knowledge gaps regarding COVID-19 vaccination include the duration of protection offered by different priming and booster vaccination regimens in different populations, including homologous or heterologous schedules; how vaccination impacts key elements of the immune system; how this is modified by prior or subsequent exposure to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and future variants; and how immune responses correlate with protection against infection and disease, including antibodies and effector and T cell central memory.

METHODS

The Platform Trial In COVID-19 priming and BOOsting (PICOBOO) is a multi-site, multi-arm, Bayesian, adaptive, randomised controlled platform trial. PICOBOO will expeditiously generate and translate high-quality evidence of the immunogenicity, reactogenicity and cross-protection of different COVID-19 priming and booster vaccination strategies against SARS-CoV-2 and its variants/subvariants, specific to the Australian context. While the platform is designed to be vaccine agnostic, participants will be randomised to one of three vaccines at trial commencement, including Pfizer's Comirnaty, Moderna's Spikevax or Novavax's Nuvaxovid COVID-19 vaccine. The protocol structure specifying PICOBOO is modular and hierarchical. Here, we describe the Core Protocol, which outlines the trial processes applicable to all study participants included in the platform trial.

DISCUSSION

PICOBOO is the first adaptive platform trial evaluating different COVID-19 priming and booster vaccination strategies in Australia, and one of the few established internationally, that is designed to generate high-quality evidence to inform immunisation practice and policy. The modular, hierarchical protocol structure is intended to standardise outcomes, endpoints, data collection and other study processes for nested substudies included in the trial platform and to minimise duplication. It is anticipated that this flexible trial structure will enable investigators to respond with agility to new research questions as they arise, such as the utility of new vaccines (such as bivalent, or SARS-CoV-2 variant-specific vaccines) as they become available for use.

TRIAL REGISTRATION

Australian and New Zealand Clinical Trials Registry ACTRN12622000238774. Registered on 10 February 2022.

Longitudinal evaluation of laboratory-based serological assays for SARS-CoV-2 antibody detection

Serological assays for SARS-CoV-2 infection are now widely available for use in diagnostic laboratories. Limited data are available on the performance characteristics in different settings, and at time periods remote from the initial infection. Validation of the Abbott (Architect SARS-CoV-2 IgG), DiaSorin (Liaison SARS-CoV-2 S1/S2 IgG) and Roche (Cobas Elecsys Anti-SARS-CoV-2) assays was undertaken utilising 217 serum samples from 131 participants up to 7 months following COVID-19 infection. The Abbott and DiaSorin assays were implemented into routine laboratory workflow, with outcomes reported for 2764 clinical specimens. Sensitivity and specificity were concordant with the range reported by the manufacturers for all assays. Sensitivity across the convalescent period was highest for the Roche at 95.2-100% (95% CI 81.0-100%), then the DiaSorin at 88.1-100% (95% CI 76.0-100%), followed by the Abbott 68.2-100% (95% CI 53.4-100%). Sensitivity of the Abbott assay fell from approximately 5 months; on this assay paired serum samples for 45 participants showed a significant drop in the signal-to-cut-off ratio and 10 sero-reversion events. When used in clinical practice, all samples testing positive by both DiaSorin and Abbott assays were confirmed as true positive results. In this low prevalence setting, despite high laboratory specificity, the positive predictive value of a single positive assay was low. Comprehensive validation of serological assays is necessary to determine the optimal assay for each diagnostic setting. In this low prevalence setting we found implementation of two assays with different antibody targets maximised sensitivity and specificity, with confirmatory testing necessary for any sample which was positive in only one assay.

Animal assisted interventions in the children's hospital: protocol for a scoping review

The introduction of Animal Assisted Interventions (AAIs) in healthcare is relatively common; however, their actual effectiveness and long-term impact are not so well known, especially in relation to the children’s hospital setting.  It is important to plot where and why animal interventions take place but also to focus on how the human animal bond impacts on children in a children’s hospital setting.  Family members, including companion animals, are important supports which help children to relax and give them a sense of familiarity to navigate the busy and stressful hospital environment.  The scoping review of the literature proposed will explore the scientific evidence base for AAIs in children’s hospitals and will map results prior to undertaking a full scale research project.   Arksey and O’Malley’s framework guided by the Joanna Briggs Institute will frame this review protocol.  Appendices are used to ensure transparency of methods. The protocol is presented in narrative style to demonstrate flow, fluency, and appeal to wider readership.

"It's going to be hard you know…" Teachers' perceived role in widening access to medicine

Medical schools worldwide undertake widening access (WA) initiatives (e.g. pipeline, outreach and academic enrichment programmes) to support pupils from high schools which do not traditionally send high numbers of applicants to medicine. UK literature indicates that pupils in these schools feel that their teachers are ill-equipped, cautious or even discouraging towards their aspiration and/or application to medicine. This study aimed to explore teachers' perspectives and practices to include their voice in discussions and consider how medical schools might best engage with them to facilitate WA. Interviews were conducted with high school teachers in three UK regions, working in schools targeted by WA initiatives. Data were analysed thematically using template analysis, using a largely data-driven approach. Findings showed that although medicine was largely seen as a prestigious and worthwhile career, teachers held reservations about advocating this above other choices. Teachers saw it as their role to encourage pupils to educate themselves about medicine, but to ultimately allow pupils to make their own decisions. Their attitudes were influenced by material constraints in their schools, and the perception of daunting, long and emotionally difficult admissions requirements, with low chances of success. Medical schools may wish to work with teachers to understand their hesitations and help them develop the mindset required to advocate a challenging and unfamiliar career, emphasising that this encouragement can further the shared goal of empowering and preparing pupils to feel capable of choosing medicine. Reciprocally, medical schools should ensure pupils have fair opportunities for access, should they choose to apply.

Does the UKCAT predict performance in medical and dental school? A systematic review

OBJECTIVES

For the first time, this systematic review provides a summary of the literature exploring the relationship between performance in the UK Clinical Aptitude Test (UKCAT) and assessments in undergraduate medical and dental training.

DESIGN

In accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analysis, relevant studies were identified through systematic literature searches. Electronic searches were carried out on EBSCO, EMBASE, Educational Resources Information Centre, SCOPUS, Web of Knowledge. Studies which included the predictive validity of selection criteria including some element of the UKCAT were considered.

RESULTS

22 papers were identified for inclusion in the study. Four studies describe outcomes from dental programmes with limited results reported. 18 studies reported on relationships between the UKCAT and performance in undergraduate medical training. Of these, 15 studies reported relationships between the UKCAT cognitive tests and undergraduate medical assessments. Weak relationships (r=0.00-0.29) were observed in 14 of these studies; four studies reported some moderate relationships (r=0.30-0.49). The strongest relationships with performance in medical school were observed for the UKCAT total score and the verbal reasoning subtest. Relationships with knowledge-based assessments scores were higher than those for assessments of skills as the outcome. Relationships observed in small (single and double centre studies) were larger than those observed in multicentre studies.

CONCLUSION

The results indicate that UKCAT scores predict performance in medical school assessments. The relationship is generally weak, although noticeably stronger for both the UKCAT total score and the verbal reasoning subtest. There is some evidence that UKCAT continues to predict performance throughout medical school. We recommend more optimal approaches to future studies. This assessment of existing evidence should assist medical/dental schools in their evaluation of selection processes.

Leptomeningeal Relapse of Embryonal Rhabdomyosarcoma after 15 years

Aim Rhabdomyosarcoma (RMS) is the most common malignant soft tissue tumour of childhood. We present the case of a late relapse of RMS to the leptomeninges after 15 years. Methods A 20 year old male presented with a 3 week history of headaches and nausea. He previously had RMS of his right ear diagnosed at age 5 years which was treated with concurrent chemoradiotherapy. An MRI Brain and Spine confirmed extensive leptomeningeal disease and CSF analysis confirmed the presence of recurrent embryonal RMS. Results He completed two cycles of cyclophosphamide and topotecan followed by 45Gy/25Fr of craniospinal radiotherapy. Conclusion Late relapses beyond five years can be seen in up to 9% of patients, however very late recurrences (>10 years) are exceedingly rare. Molecular based methods such as gene expression profiling can aid risk stratification and survivorship clinics may become increasingly useful in following patients with high risk features.

Animal assisted activities in the children's hospital: protocol for a scoping review

The introduction of animal interventions in healthcare are relatively common; however, their actual effectiveness and longer term findings are not so well known or published, especially in relation to the children’s hospital setting.  It is important to plot where and why animal interventions take place but also to focus on how the human animal bond impacts on children, their parents and staff in a children’s hospital setting.  Family members, including companion animals, are important supports which help children to relax and give them a sense of familiarity to navigate the busy and stressful hospital environment.  The scoping review of the literature proposed will explore the scientific evidence for animal assisted activities (AAA) in children’s hospitals and will map results prior to undertaking a full scale research project.   Arksey and O’Malley’s framework guided by the Joanna Briggs Institute will frame this review protocol.  Appendices are used to ensure transparency of methods. The protocol is presented in narrative style to demonstrate flow and fluency and appeal to wider readership.

Paraneoplastic sarcoidosis: a review

BACKGROUND

Sarcoidosis is occasionally seen in association with malignancy, both at the time of cancer diagnosis or during follow up.

AIM

The purpose of this study is to identify patients with paraneoplastic sarcoid, their associated malignancies and disease characteristics.

METHODS

We identified 289 patients diagnosed histologically with sarcoidosis over a 6-year period in one centre, from 2010 to 2016. Fifty of these patients had a prior or concomitant diagnosis of cancer.

RESULTS

17.3% of sarcoid cases had an associated malignancy. The most common malignancies were Gastrointestinal (20%), Haematological (18%), Lung (12%), Gynaecological (12%) and Head and Neck cancer (12%). 74% of sarcoid cases had pulmonary disease with sarcoid diagnostic tissue obtained most frequently via endobronchial ultrasound fine needle aspiration (68%). Most sarcoid cases (66%) were diagnosed within the first year of their malignancy diagnosis.

DISCUSSION

Careful consideration needs to be given to the possibility that potential cancer recurrences suspected on imaging studies may indeed be sarcoid reactions.

Veterinary Professionals' Understanding of Common Feline Behavioural Problems and the Availability of "Cat Friendly" Practices in Ireland

Simple Summary

Veterinary behavioural medicine, which includes being able to understand animal behaviour and treat behaviour problems, is an important part of veterinary practice. However, many veterinary practitioners and veterinary nurses in Ireland and elsewhere feel that they have received inadequate training in this subject. The purpose of this study was to survey veterinary practitioners and veterinary nurses in Ireland about treating common behavioural problems in cats and the availability of “cat friendly” practices. An online survey was developed, consisting of 21 questions on professional roles and experience, scenarios presenting advice given on common cat behaviour problems, and “cat friendly” practice management options. For each piece of advice participants were asked to score how likely it would be to solve the behavioural problem in a kind way. The online survey was shared via professional organisations, social media and at the University College Dublin Hospital Conference. The survey was completed by 42 veterinary practitioners and 53 veterinary nurses. Most of these correctly recognised both good and bad advice, but some mistakes and uncertainties were found. The scores of veterinary practitioners and veterinary nurses differed for the advice on urine spraying, self-mutilation (self-injury), and resource-based aggression (aggression related to sharing items), and we found that relatively few “cat friendly” measures were available in respondents’ clinics. Our findings could be used to improve training in veterinary behavioural medicine.

Abstract

Veterinary behavioural medicine (VBM) is an integral aspect of veterinary practice. However, Golden and Hanlon (Ir. Vet. J. 71:12, 2018) found that the majority of professionals surveyed felt they had received inadequate VBM education and were commonly asked to give advice on feline behavioural problems. The purpose of this study was to explore understanding of feline VBM and the availability of “cat friendly” provisions in clinical practice in Ireland. An online survey comprised 21 questions on professional role and experience, vignettes of common feline behavioural problems, and “cat friendly” practice management. Using a Likert Scale, participants were requested to score whether the advice depicted in vignettes supported best outcome based on the definition by Shalvey et al. (Ir. Vet. J. 72:1, 2019). The survey was distributed via professional organisations, social media, and at the University College Dublin Hospital Conference. Forty-two veterinary practitioners (VPs) and 53 veterinary nurses (VNs) completed the survey. The majority of veterinary professionals agreed with our classification of best outcome, but some areas of disagreement and uncertainty were identified. In addition, there were significant differences between VPs and VNs regarding spraying (p = 0.033), self-mutilation (p = 0.016), and resource-based aggression (p = 0.013). Relatively few “cat friendly” measures were implemented in respondents’ clinics. Our findings support the need for increased education in feline VBM, in particular, implementation of cat friendly practice initiatives.

Job morale of physicians in low-income and middle-income countries: a systematic literature review of qualitative studies

OBJECTIVES

To systematically review the available literature on physicians' and dentists' experiences influencing job motivation, job satisfaction, burnout, well-being and symptoms of depression as indicators of job morale in low-income and middle-income countries.

DESIGN

The review was reported following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines for studies evaluating outcomes of interest using qualitative methods. The framework method was used to analyse and integrate review findings.

DATA SOURCES

A primary search of electronic databases was performed by using a combination of search terms related to the following areas of interest: 'morale', 'physicians and dentists' and 'low-income and middle-income countries'. A secondary search of the grey literature was conducted in addition to checking the reference list of included studies and review papers.

RESULTS

Ten papers representing 10 different studies and involving 581 participants across seven low-income and middle-income countries met the inclusion criteria for the review. However, none of the studies focused on dentists' experiences was included. An analytical framework including four main categories was developed: work environment (physical and social), rewards (financial, non-financial and social respect), work content (workload, nature of work, job security/stability and safety), managerial context (staffing levels, protocols and guidelines consistency and political interference). The job morale of physicians working in low-income and middle-income countries was mainly influenced by negative experiences. Increasing salaries, offering opportunities for career and professional development, improving the physical and social working environment, implementing clear professional guidelines and protocols and tackling healthcare staff shortage may influence physicians' job morale positively.

CONCLUSIONS

There were a limited number of studies and a great degree of heterogeneity of evidence. Further research is recommended to assist in scrutinising context-specific issues and ways of addressing them to maximise their utility.

PROSPERO REGISTRATION NUMBER

CRD42017082579.

Bridging the cultural divide? Exploring school pupils' perceptions of medicine

CONTEXT

Literature published around a decade ago demonstrated that UK individuals from non-traditional groups may not consider, or aspire to, medicine because of sociocultural barriers and instead may perceive medicine as 'not for the likes of me'. Since this time, the UK higher education landscape has undergone significant change, with an increased emphasis on student choice and widening access (WA) initiatives. Consequently, the present study looks anew at the perceptions of medicine held by school pupils from non-traditional backgrounds to assess whether sociocultural factors remain a major barrier to medicine.

METHODS

Focus groups were conducted with 71 high-achieving school pupils in their penultimate or final years (aged 16-18 years). Participants attended UK state-funded schools engaged with medical school WA initiatives. Transcripts were analysed thematically using a data-driven approach. Themes were then interpreted through the conceptual lens of the 'reflexive habitus', an adapted version of Bourdieu's classic concept.

RESULTS

Participants did not perceive that sociocultural differences would deter them from aspiring to, or pursuing, the career of their choice. Some participants identified their 'different' background as a strength to bring to medicine. They reported that intrinsic motivators (personal interest and fulfilment) were most important in their own career choices. When asked what they believed might have motivated current medical students for the career, participants debated the role of extrinsic motivators (high status and income) versus intrinsic ones. 'Hot knowledge' (social contacts) from within medicine helped some participants reconcile any clash in perceived values and better imagine themselves in the profession.

CONCLUSIONS

These non-traditional school pupils from schools engaged with WA initiatives appear to have embraced the belief that medicine is for anyone with the appropriate desire and ability, regardless of background. Furthermore, some pupils reported that some aspects of their 'difference' (diversity) could help enrich the workforce and patient care.

Diversifying the medical workforce requires a step change in widening participation - Putting the cat amongst the pigeons!

This article was migrated. The article was marked as recommended. Worldwide there is a call for diversifying the healthcare workforce through widening participation (WP) necessitating a significant change in current recruitment and selection policies and practices. However this is advocated without a well understood conceptualisation of WP or consensus between stakeholders about its purposes. Employers, and patients, require a medical workforce that is both caring and competent but also accessible. This presents a significant challenge for most countries, especially in some areas of healthcare, for both common and varying reasons. For example Australia and NZ have long struggled to recruit healthcare workers to remote and rural parts of their countries, whilst currently general practice within the UK, is in crisis due to under recruitment and low morale. Higher Education institutions wish to recruit the best students but it is not clear who the "best students" are and who will progress to fulfil future workforce requirements. Globally universities are concerned by market forces and face significant financial constraints often directly competing with WP policies. Furthermore an established culture of meritocracy, schemes to "top-up" perceived deficits within certain student groups, and fears surrounding the performance of non-traditional students once at university, deter both would be students and the institutions themselves from increasing diversity. Whilst medical schools may aspire to the aims of social justice and fair opportunities such a trajectory is plagued with difficulties, such as university tariff leagues tables, and concerns with student attrition and differential attainment. However considering the aforementioned workforce issues it is timely to look afresh at what our priorities are in selecting for the future medical workforce. Better understanding the available evidence and the inherent tensions within WP would help us make the required step change that facilitates selecting a more appropriate medical workforce.

Do changing medical admissions practices in the UK impact on who is admitted? An interrupted time series analysis

INTRODUCTION

Medical admissions must balance two potentially competing missions: to select those who will be successful medical students and clinicians and to increase the diversity of the medical school population and workforce. Many countries address this dilemma by reducing the heavy reliance on prior educational attainment, complementing this with other selection tools. However, evidence to what extent this shift in practice has actually widened access is conflicting.

AIM

To examine if changes in medical school selection processes significantly impact on the composition of the student population.

DESIGN AND SETTING

Observational study of medical students from 18 UK 5-year medical programmes who took the UK Clinical Aptitude Test from 2007 to 2014; detailed analysis on four schools.

PRIMARY OUTCOME

Proportion of admissions to medical school for four target groups (lower socioeconomic classes, non-selective schooling, non-white and male).

DATA ANALYSIS

Interrupted time-series framework with segmented regression was used to identify the impact of changes in selection practices in relation to invitation to interview to medical school. Four case study medical schools were used looking at admissions within for the four target groups.

RESULTS

There were no obvious changes in the overall proportion of admissions from each target group over the 8-year period, averaging at 3.3% lower socioeconomic group, 51.5% non-selective school, 30.5% non-white and 43.8% male. Each case study school changed their selection practice in decision making for invite to interview during 2007-2014. Yet, this within-school variation made little difference locally, and changes in admission practices did not lead to any discernible change in the demography of those accepted into medical school.

CONCLUSION

Although our case schools changed their selection procedures, these changes did not lead to any observable differences in their student populations. Increasing the diversity of medical students, and hence the medical profession, may require different, perhaps more radical, approaches to selection.

Immunoglobulin Ihhibiting Reagent®: Evaluation of a New Method for Eliminating Spurious Elevations in CA125 Caused by HAMA

Cancer therapy utilising radiolabelled murine monoclonal antibodies frequently leads to the production of Human Anti-Mouse Antibodies (HAMA) in the recipient. HAMA interferes with “sandwich” immunoassays, such as those for tumour markers, rendering results unreliable. Published methods for eliminating HAMA from serum are not suitable for use in a laboratory which is processing a large number of assays using an automated system. We report on the use of Immunoglobulin Inhibiting Reagent (IIR) in CA125 assays from recipients of intraperitoneal radioimmunotherapy who had spuriously elevated results due to HAMA. IIR was found to be comparable to the admixture of mouse serum as a way of eliminating the effect of HAMA. IIR is ideally suited to use with an automated assay process.

Soft Tissue Sarcoma of the Hand and Wrist: Epidemiology and Management Challenges

Soft tissue sarcomas (STSs) of the hand and wrist are rare and confer a unique set of management challenges. We present a 15-year review and discussion of the epidemiology, tumor characteristics, treatment, and reconstructive strategies for such cases presenting to our regional sarcoma service. Three case examples are described. Of 218 STSs of the upper limb, 17 involved the hand or wrist. Alveolar rhabdomyosarcoma, synovial, and myxofibrosarcoma were the most common ones. Two patients required amputation for recurrence. Eight patients required flap reconstruction, of which five were free flaps with no failures or wound healing complications. Two-year overall survival rate was 92%. Local recurrence occurred in 12%. Limb-sparing surgery is possible in most patients, although there is often a degree of functional loss due to the surgical resection, and complex multistage reconstruction may be required. These lesions are still often incidental or unexpected findings when patients are treated for a presumed benign swelling. Clinicians treating localized swellings of the hand and wrist should maintain vigilance toward the possibility of a sarcoma diagnosis, to avoid delays in definitive treatment.

The UK medical education database (UKMED) what is it? Why and how might you use it?

BACKGROUND

Educating doctors is expensive and poor performance by future graduates can literally cost lives. Whilst the practice of medicine is highly evidence based, medical education is much less so. Research on medical school selection, undergraduate progression, Fitness to Practise (FtP) and postgraduate careers has been hampered across the globe by the challenges of uniting the data required. This paper describes the creation, structure and access arrangements for the first UK-wide attempt to do so.

OVERVIEW

A collaborative approach has created a research database commencing with all entrants to UK medical schools in 2007 and 2008 (UKMED Phase 1). Here the content is outlined, governance arrangements considered, system access explained, and the potential implications of this new resource discussed. The data currently include achievements prior to medical school entry, admissions tests, graduation point information and also all subsequent data collected by the General Medical Council, including FtP, career progression, annual National Training Survey (NTS) responses, career choice and postgraduate exam performance data. UKMED has grown since the pilot phase with additional datasets; all subsequent years of students/trainees and stronger governance processes. The inclusion of future cohorts and additional information such as admissions scores or bespoke surveys or assessments is now being piloted. Thus, for instance, new scrutiny can be applied to selection techniques and the effectiveness of educational interventions. Data are available free of charge for approved studies from suitable research groups worldwide.

CONCLUSION

It is anticipated that UKMED will continue on a rolling basis. This has the potential to radically change the volume and types of research that can be envisaged and, therefore, to improve standards, facilitate workforce planning and support the regulation of medical education and training. This paper aspires to encourage proposals to utilise this exciting resource.

In-process rheometry as a PAT tool for hot melt extrusion

Real time measurement of melt rheology has been investigated as a Process Analytical Technology (PAT) to monitor hot melt extrusion of an Active Pharmaceutical Ingredient (API) in a polymer matrix. A developmental API was melt mixed with a commercial copolymer using a heated twin screw extruder at different API loadings and set temperatures. The extruder was equipped with an instrumented rheological slit die which incorporated three pressure transducers flush mounted to the die surface. Pressure drop measurements within the die at a range of extrusion throughputs were used to calculate rheological parameters, such as shear viscosity and exit pressure, related to shear and elastic melt flow properties, respectively. Results showed that the melt exhibited shear thinning behavior whereby viscosity decreased with increasing flow rate. Increase in drug loading and set extrusion temperature resulted in a reduction in melt viscosity. Shear viscosity and exit pressure measurements were found to be sensitive to API loading. These findings suggest that this technique could be used as a simple tool to measure material attributes in-line, to build better overall process understanding for hot melt extrusion.

The ClosER study: results from a three-year pan-European longitudinal surveillance of antibiotic resistance among prevalent Clostridium difficile ribotypes, 2011-2014

OBJECTIVES

Until the introduction of fidaxomicin, antimicrobial treatment for Clostridium difficile infection (CDI) was limited to metronidazole and vancomycin. The changing epidemiology of CDI and the emergence of epidemic C. difficile PCR ribotype 027 necessitate continued surveillance to identify shifts in antibiotic susceptibility. ClosER, currently the largest pan-European epidemiological study of C. difficile ribotype distribution and antibiotic susceptibility, aimed to undertake antimicrobial resistance surveillance pre- and post-introduction of fidaxomicin.

METHODS

Between July 2011 and July 2014, 39 sites across 22 European countries submitted 2830 C. difficile isolates for ribotyping, toxin testing and susceptibility testing to metronidazole, vancomycin, fidaxomicin, rifampicin, moxifloxacin, clindamycin, imipenem, chloramphenicol and tigecycline.

RESULTS

Ribotypes 027, 014, 001, 078, 020, 002, 126, 015 and 005 were most frequently isolated, and emergent ribotypes 198 and 356 were identified in Hungary and Italy, respectively. All isolates were susceptible to fidaxomicin, with scarce resistance to metronidazole (0.2%, 6/2694), vancomycin (0.1%, 2/2694) and tigecycline (0%). Rifampicin, moxifloxacin and clindamycin resistance was evident in multiple ribotypes. Lack of ribotype diversity correlated with greater antimicrobial resistance. Epidemic ribotypes (027/001) were associated with multiple antimicrobial resistance, and ribotypes 017, 018 and 356 with high-level resistance. Additional factors may also influence local ribotype prevalence.

CONCLUSIONS

Fidaxomicin susceptibility was retained post-introduction, and resistance to metronidazole and vancomycin was rare. Continued surveillance is needed, with more accurate classification and clarification of ribotype subtypes to further understand their role in the spread of resistance. Other factors may also influence changes in prevalence of C. difficile ribotypes with reduced antibiotic susceptibility.

The Predictive Validity of a Text-Based Situational Judgment Test in Undergraduate Medical and Dental School Admissions

PROBLEM

Situational judgment tests (SJTs) can be used to assess the nonacademic attributes necessary for medical and dental trainees to become successful practitioners. Evidence for SJTs' predictive validity, however, relates predominantly to selection in postgraduate settings or using video-based SJTs at the undergraduate level; it may not be directly transferable to text-based SJTs in undergraduate medical and dental school selection. This preliminary study aimed to address these gaps by assessing the validity of the UK Clinical Aptitude Test (UKCAT) text-based SJT.

APPROACH

Study participants were 218 first-year medical and dental students from four UK undergraduate schools who completed the first UKCAT text-based SJT in 2013. Outcome measures were educational supervisor ratings of in-role performance in problem-based learning tutorial sessions-mean rating across the three domains measured by the SJT (integrity, perspective taking, and team involvement) and an overall judgment of performance-collected in 2015.

OUTCOMES

There were significant correlations between SJT scores and both mean supervisor ratings (uncorrected r = 0.24, P < .001; corrected r = 0.34) and overall judgments (uncorrected rs = 0.16, P < .05; corrected rs = 0.20). SJT scores predicted 6% of variance in mean supervisor ratings across the three nonacademic domains.

NEXT STEPS

The results provide evidence that a well-designed text-based SJT can be appropriately integrated, and add value to, the selection process for undergraduate medical and dental school. More evidence is needed regarding the longitudinal predictive validity of SJTs throughout medical and dental training pathways, with appropriate outcome criteria.

Intercalating in Medical Education; is it more valuable than other Intercalated Degrees?

This article was migrated. The article was not marked as recommended. Aim: This study aimed to identify whether an intercalated BSc (iBSc) in Medical Education offers long-term career benefits beyond that of traditional iBScs by exploring candidates' retrospective perceptions. Method: A small-scale study was conducted with doctors who had completed an iBSc at Barts and the London SMD. A mixed methods approach was adopted using a questionnaire (21), and semi-structured interviews (4) to further explore respondent's perceptions. Results: All iBScs highlight similar curriculum outcomes in terms of research skill development and offer additional points at foundation- and specialty training applications. Medical Education respondents reported additional parallel benefits such as teaching alongside research activity, with a greater numbers of outputs e.g. presentations, publications. Understanding educational theory, developing teaching skills and portfolio creation were identified by the Medical Education group as particularly valuable to career progression. Additionally, Medical Educational iBSc candidates felt the course would offer ubiquitous value in the core medical curriculum, with those completing traditional 'lab based' iBScs feeling that no aspect of their intercalation had such generic value, and should remain a separate, optional educational intervention. Conclusion: Considering the increasing emphasis on education and teaching in medicine, this study suggests Medical Education offers greater benefit to candidates in the long-term. It follows that incorporation of this in the core medical curriculum would offer value to all candidates.

Genome sequence variation among isolates of monkey B virus (Macacine alphaherpesvirus 1) from captive macaques

Complete genome sequences of 19 strains of monkey B virus (Macacine alphaherpesvirus 1; BV) isolated from several macaque species were determined. A low level of sequence variation was present among BV isolates from rhesus macaques. Most variation among BV strains isolated from rhesus macaques was located in regions of repetitive or quasi-repetitive sequence. Variation in coding sequences (polypeptides and miRNAs) was minor compared to regions of non-coding sequences. Non-coding sequences in the long and short repeat regions of the genome did however exhibit islands of conserved sequence. Oral and genital isolates from a single monkey were identical in sequence and varied only in the number of iterations of repeat units in several areas of repeats. Sequence variation between BV isolates from different macaque species (different BV genotypes) was much greater and was spread across the entire genome, confirming the existence of different genotypes of BV in different macaque species.

'Why not you?' Discourses of widening access on UK medical school websites

CONTEXT

In the UK, applications to medicine from those in lower socio-economic groups remain low despite significant investments of time, interest and resources in widening access (WA) to medicine. This suggests that medical schools' core messages about WA may be working to embed or further reinforce marginalisation, rather than to combat this. Our objective was to investigate how the value of WA is communicated by UK medical schools through their websites, and how this may create expectations regarding who is 'suitable' for medicine.

METHODS

We conducted a critical discourse analysis of the webpages of UK medical schools in relation to WA. Our conceptual framework was underpinned by a Foucauldian understanding of discourse. Analysis followed an adapted version of Hyatt's analytical framework. This involved contextualising the data by identifying drivers, levers and warrants for WA, before undertaking a systematic investigation of linguistic features to reveal the discourses in use, and their assumptions.

RESULTS

Discourses of 'social mobility for the individual' justified WA as an initiative to support individuals with academic ability and commitment to medicine, but who were disadvantaged by their background in the application process. This meritocratic discourse communicated the benefits of WA as flowing one way, with medical schools providing opportunities to applicants. Conversely, discourses justifying WA as an initiative to benefit patient care were marginalised and largely excluded. Alternative strengths typically attributed to students from lower socio-economic groups were not mentioned, which implies that these were not valued.

CONCLUSIONS

Current discourses of WA on UK medical school websites do not present non-traditional applicants as bringing gains to medicine through their diversity. This may work as a barrier to attracting larger numbers of diverse applicants. Medical schools should reflect upon their website discourses, critically evaluate current approaches to encouraging applications from those in lower socio-economic groups, and consider avenues for positive change.

"It's making contacts": notions of social capital and implications for widening access to medical education

In the UK widening access (WA) activities and policies aim to increase the representation from lower socio-economic groups into Higher Education. Whilst linked to a political rhetoric of inclusive education such initiatives have however failed to significantly increase the number of such students entering medicine. This is compounded by a discourse that portrays WA applicants and students as lacking the essential skills or attributes to be successful in medical education. Much of the research in this area to date has been weak and it is critical to better understand how WA applicants and students negotiate medical admissions and education to inform change. To address this gap we amalgamated a larger dataset from three qualitative studies of student experiences of WA to medicine (48 participants in total). Inductively analysing the findings using social capital as a theoretical lens we created and clustered codes into categories, informed by the concepts of "weak ties" and "bridging and linking capital", terms used by previous workers in this field, to better understand student journeys in medical education. Successful applicants from lower socio-economic groups recognise and mobilise weak ties to create linking capital. However once in medical school these students seem less aware of the need for, or how to create, capital effectively. We argue WA activities should support increasing the social capital of under-represented applicants and students, and future selection policy needs to take into account the varying social capital of students, so as to not overtly disadvantage some social groups.

Let us not neglect the impact of organizational culture on increasing diversity within medical schools

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Does the UKCAT predict performance on exit from medical school? A national cohort study

OBJECTIVES

Most UK medical programmes use aptitude tests during student selection, but large-scale studies of predictive validity are rare. This study assesses the UK Clinical Aptitude Test (UKCAT: http://www.ukcat.ac.uk), and 4 of its subscales, along with individual and contextual socioeconomic background factors, as predictors of performance during, and on exit from, medical school.

METHODS

This was an observational study of 6294 medical students from 30 UK medical programmes who took the UKCAT from 2006 to 2008, for whom selection data from the UK Foundation Programme (UKFPO), the next stage of UK medical education training, were available in 2013. We included candidate demographics, UKCAT (cognitive domains; total scores), UKFPO Educational Performance Measure (EPM) and national exit situational judgement test (SJT). Multilevel modelling was used to assess relationships between variables, adjusting for confounders.

RESULTS

The UKCAT-as a total score and in terms of the subtest scores-has significant predictive validity for performance on the UKFPO EPM and SJT. UKFPO performance was also affected positively by female gender, maturity, white ethnicity and coming from a higher social class area at the time of application to medical school An inverse pattern was seen for a contextual measure of school, with those attending fee-paying schools performing significantly more weakly on the EPM decile, the EPM total and the total UKFPO score, but not the SJT, than those attending other types of school.

CONCLUSIONS

This large-scale study, the first to link 2 national databases-UKCAT and UKFPO, has shown that UKCAT is a predictor of medical school outcome. The data provide modest supportive evidence for the UKCAT's role in student selection. The conflicting relationships of socioeconomic contextual measures (area and school) with outcome adds to wider debates about the limitations of these measures, and indicates the need for further research.

Widening access in selection using situational judgement tests: evidence from the UKCAT

CONTEXT

Widening access promotes student diversity and the appropriate representation of all demographic groups. This study aims to examine diversity-related benefits of the use of situational judgement tests (SJTs) in the UK Clinical Aptitude Test (UKCAT) in terms of three demographic variables: (i) socio-economic status (SES); (ii) ethnicity, and (iii) gender.

METHODS

Outcomes in medical and dental school applicant cohorts for the years 2012 (n = 15 581) and 2013 (n = 15 454) were studied. Applicants' scores on cognitive tests and an SJT were linked to SES (parents' occupational status), ethnicity (White versus Black and other minority ethnic candidates), and gender.

RESULTS

Firstly, the effect size for SES was lower for the SJT (d = 0.13-0.20 in favour of the higher SES group) than it was for the cognitive tests (d = 0.38-0.35). Secondly, effect sizes for ethnicity of the SJT and cognitive tests were similar (d = ~ 0.50 in favour of White candidates). Thirdly, males outperformed females on cognitive tests, whereas the reverse was true for SJTs. When equal weight was given to the SJT and the cognitive tests in the admission decision and when the selection ratio was stringent, simulated scenarios showed that using an SJT in addition to cognitive tests might enable admissions boards to select more students from lower SES backgrounds and more female students.

CONCLUSIONS

The SJT has the potential to appropriately complement cognitive tests in the selection of doctors and dentists. It may also put candidates of lower SES backgrounds at less of a disadvantage and may potentially diversify the student intake. However, use of the SJT applied in this study did not diminish the role of ethnicity. Future research should examine these findings with other SJTs and other tests internationally and scrutinise the causes underlying the role of ethnicity.

PO-21 - Stromal fibroblasts in preinvasive breast cancer (ductal carcinoma in situ, DCIS) demonstrate a cancer-like procoagulant phenotypic switch that may facilitate invasion

INTRODUCTION

Ductal carcinoma in-situ (DCIS) is a preinvasive breast cancer where cancer cells remain confined within the ductal basement membrane. However, genotypic changes have been identified in stroma surrounding DCIS, outside the basement membrane. Stromal fibroblasts undergo phenotypic change in cancer to promote tumour angiogenesis, proliferation, immunosuppression and metastasis and in vivo can induce invasion of DCIS. Phenotypic changes in DCIS stromal fibroblasts may potentially act as a precursor for invasion.

AIM

To determine if stromal fibroblasts in DCIS have procoagulant changes similar to those seen in cancer-associated fibroblasts in invasive breast cancer.

MATERIALS AND METHODS

As part of the prospective cohort study CHAMPion (Cancer induced Hypercoagulabulity as a Marker of Prognosis), patients with DCIS (n=72) and invasive breast cancer (n=292) were recruited. Stromal fibroblasts in tumour and corresponding normal breast tissue (distant from the cancer) were quantified (percentage IHC stained) for tissue factor (TF), thrombin, PAR1 and PAR2. Fibroblasts were identified morphologically, at a minimum distance of 0.2mm from ductal tissue, to avoid myoepithelial scoring. Scoring was performed in duplicate by two independent pathologists.

RESULTS

Fibroblast TF expression was present in normal breast tissue (mean 43% ([SD 27%]) but markedly increased in DCIS (mean 62% [SD 27%], p=0.002). Fibroblast TF expression was further increased in invasive breast cancer (mean 74% [SD 23%], normal vs invasion, p<0.001; DCIS vs invasion, p=0.03). Fibroblast thrombin and PAR2, but not PAR1, expression was increased in DCIS compared to normal (thrombin: 60% vs 42%, p<0.001; PAR2: 58% vs 41%, p=0.002), however no further significant increase was seen in invasive cancer (thrombin 63%, PAR2 61%). Fibroblast tissue factor correlated with fibroblast thrombin expression (p<0.001, r=0.4) and fibroblast PAR2 expression (p<0.001, r=0.5), with thrombin and PAR2 expression also correlating (p<0.001, r=0.4).

CONCLUSIONS

Procoagulant phenotypic changes, in terms of increased TF, thrombin and PAR2 expression, occur in stromal fibroblasts at the preinvasive stage. It needs to be determined if this change is functional and therefore a potential therapeutic target for preventing transition to invasion.