COVID-19's impact on a community-based physical activity program for adults with moderate-to-severe TBI

PURPOSE

Physical activity (PA) is proposed for long-term problems after traumatic brain injury (TBI) with mood, quality of life, and participation. However, COVID-19 mitigation strategies resulted in widespread closures of community-based fitness centres, including one housing a peer-assisted PA program (TBI-Health). The purpose of this study was to provide an in-depth exploration of COVID-19's impact on the TBI-Health program for adults with moderate-to-severe TBI and determine how their PA behaviours could be supported in the pandemic.

METHODS

Interpretative phenomenological analysis was employed to collect and analyze data from semi-structured Zoom-facilitated interviews with seven female and nine male adults with moderate-to-severe TBI (including program participants and mentors).

RESULTS

Three major themes were identified. Need for PA after TBI included specific benefits of PA after TBI and desire for an adapted PA program. Lasting Impacts of the TBI-Health Program identified belonging to the TBI-Health community, benefits, and knowledge transfer from the program. Resilience and Loss through the Pandemic comprised the repercussions of COVID-19, loss of the PA program, adapting PA to the pandemic, and resilience after TBI.

CONCLUSION

This study provides insights about impacts of participating in community-based peer-assisted PA programs after moderate-to-severe TBI and ways to support PA in unforeseen circumstances.

Exploring a peer-based physical activity program in the community for adults with moderate-to-severe traumatic brain injury

PRIMARY OBJECTIVE

To explore the experiences of program mentors, participants, and employees involved in a peer-based physical activity (PA) program for adults with moderate-to-severe TBI, being piloted by a community fitness center, to develop the program as a measurable intervention.

RESEARCH DESIGN

We adopted an exploratory case study approach through an interpretivist paradigm, which focused on discovering realities about the peer-based PA program across the study participants' views, backgrounds, and experiences.

METHODS AND PROCEDURES

Semi-structured focus groups and individual interviews were conducted with nine adult program participants (3 peer mentors, 6 participants), and three program employees. Inductive content analysis was used to develop themes about their perceived experiences.

MAIN OUTCOMES AND RESULTS

44 open-codes were grouped into 10 subthemes and three final themes: 1) program impacts identified the importance of the program in daily life and resulting psychological, physical, and social outcomes; 2) program characteristics highlighted program leaders, accessibility, and social inclusion; 3) program sustainability included program adherence, benefits for the center, and the program's future.

CONCLUSIONS

Perceptions of program experiences and outcomes identified how peer-based PA for adults with moderate-to-severe TBI can lead to meaningful activities, functioning better, and buy-in from all parties. Implications for research and practice related to supporting health-related behaviors after TBI through group-based, autonomy-supporting approaches are discussed.

Developing a knowledge translation program for health practitioners: Allied Health Translating Research into Practice

Background

Front-line health practitioners lack confidence in knowledge translation, yet they are often required to undertake projects to bridge the knowledge-practice gap. There are few initiatives focused on building the capacity of the health practitioner workforce to undertake knowledge translation, with most programs focusing on developing the skills of researchers. This paper reports the development and evaluation of a knowledge translation capacity building program for allied health practitioners located over geographically dispersed locations in Queensland, Australia.

Methods

Allied Health Translating Research into Practice (AH-TRIP) was developed over five years with consideration of theory, research evidence and local needs assessment. AH-TRIP includes five components: training and education; support and networks (including champions and mentoring); showcase and recognition; TRIP projects and implementation; evaluation. The RE-AIM framework (Reach, Effectiveness, Adoption, Implementation Maintenance) guided the evaluation plan, with this paper reporting on the reach (number, discipline, geographical location), adoption by health services, and participant satisfaction between 2019 and 2021.

Results

A total of 986 allied health practitioners participated in at least one component of AH-TRIP, with a quarter of participants located in regional areas of Queensland. Online training materials received an average of 944 unique page views each month. A total of 148 allied health practitioners have received mentoring to undertake their project, including a range of allied health disciplines and clinical areas. Very high satisfaction was reported by those receiving mentoring and attending the annual showcase event. Nine of sixteen public hospital and health service districts have adopted AH-TRIP.

Conclusion

AH-TRIP is a low-cost knowledge translation capacity building initiative which can be delivered at scale to support allied health practitioners across geographically dispersed locations. Higher adoption in metropolitan areas suggests that further investment and targeted strategies are needed to reach health practitioners working in regional areas. Future evaluation should focus on exploring the impact on individual participants and the health service.

POS0011 COMPARISON OF PSYCHOMETRIC PROPERTIES OF FOUR GLOBAL MEASURES OF PRESENTEEISM IN PATIENTS WITH OSTEOARTHRITIS AND INFLAMMATORY ARTHRITIS: A EULAR-PRO STUDY

Background

Work is an important outcome for people with inflammatory arthritis (IA including PsA, RA, AxSpA) and osteoarthritis (OA). It is known that people with IA and OA are at increased risk of sick leave and have to stop working early due to ill health. In addition to being at increased risk of becoming work disabled and increased absenteeism, high levels of presenteeism (i.e. reduced productivity/limited ability to work due to ill health whilst at work) have also been reported. Several instruments exist to measure presenteeism, including single-item global measures and multi-item instruments. In some studies using single-item global instruments may be more feasible. However, available global instruments differ in concept, recall period and reference. It is important to understand which of the measures have good psychometric properties before using them in clinical studies.

Objectives

To assess the psychometric properties of four global presenteeism instruments.

Methods

Patients with IA or OA were recruited via rheumatology outpatient clinics to a large international, longitudinal observational study including 8 European countries and Canada. Participants completed a survey at baseline, 1, 2, 3, 4 wks, 2 months and 3 months. The four global measures of presenteeism included: Work Productivity and Activity Impairment Questionnaire (WPAI), Work Productivity Scale–Rheumatoid Arthritis (WPS-RA), Work Ability Index (WAI) and the Quality*Quantity questionnaire (QQtotal/10) scale. To facilitate score interpretation the WAI and QQtotal were reversed. Pain was measured using an 11-point Likert scale. Spearman correlations were calculated between the presenteeism measures and the Workplace Activity Limitations Scale (WALS), a validated multi-item measure of presenteeism, and HAQ to evaluate construct validity (validity: r <0.50=low; r >0.50-<0.70=moderate; r >0.70=high). Test-retest reliability of the 4 presenteeism scales (baseline-1wk) was measured applying ICC in patients with stable disease (i.e. same pain score at baseline and 1wk) (reliability: ICC<0.40=poor; ICC 0.40-0.75=fair to good; ICC >0.75=excellent). Responsiveness during 3 months was measured comparing patients with improvement in pain score (>1 point improvement in pain score (~MCID pain)) with patients with no change or worsening in pain score. The two groups were compared applying Mann Whitney U test.

Results

This international study included 550 patients with a mean age of 47.8 (SD 9.9) yrs and 61.4% were female. Mean (SD) disease duration since diagnosis was 10.8 (10.4) yrs and 91.2% had IA. Mean (SD) presenteeism scores at baseline were: WPAI=2.9 (2.7); WPS-RA=3.4 (2.7); WAI=2.7 (2.4); and QQtotal=3.1 (3.2). The correlations between the global measures and with WALS and HAQ were moderate to good, except for QQtotal and HAQ which was low (Table 1). In patients with the same stable pain scores at baseline-1wk (n=141) ICC scores were good to excellent, respectively: WPAI (0.771), WPS-RA (0.752), WAI (0.663), and QQtotal (0.650). An improvement in pain during the 3 month study duration was observed in 145/381 (38%) of the patients. In these patients a significant reduction in mean (SD) change presenteeism was observed for all four presenteeism scales compared to those with no change or worsening of the pain score: WPAI (-1.0 (2.37) vs 0.68 (2.40), p<0.01); WPS-RA (-0.76 (2.57) vs 0.43 (2.10), p<0.001); WAI (-0.09 (2.34) vs 0.41 (2.46), p<0.001); QQtotal (-0.57 (3.16) vs 0.79 (3.1), p<0.01).

Table 1.WPAIWPS-RAWAIQQtotalWALSHAQWPAI-0.81640.59920.51840.62690.5592WPS-RA-0.58360.52170.60550.5669WAI-0.58660.52310.5168QQtotal-0.50250.4367

Conclusion

The psychometric properties of all 4 global presenteeism scales were moderate to good, with slightly better scores for both the WPS-RA and WPAI instruments both measuring the impact of OA and IA on productivity.

Disclosure of Interests

Suzanne Verstappen Consultant of: EUOSHA, Grant/research support from: AbbVie, BMS. EULAR, Annelies Boonen Speakers bureau: Abbvie / Galapagos, Consultant of: Galapagos, Sarah Wilkinson: None declared, Dorcas Beaton: None declared, Ailsa Bosworth: None declared, José Canas da Silva: None declared, Gloria Crepaldi: None declared, Sabrina Dadoun: None declared, Cathie Hofstetter: None declared, Carina Mihai Speakers bureau: Boehringer-Ingelheim, Mepha, MED Talks Switzerland, Consultant of: Boehringer-Ingelheim, Janssen, Grant/research support from: Roche, Boehringer-Ingelheim, Sofia Ramiro Consultant of: AbbVie, Eli Lilly, MSD, Novartis, Pfizer, UCB, Sanofi, Grant/research support from: Grant: AbbVie, Galapagos, Novartis, Pfizer, UCB, Garifallia Sakellariou Consultant of: Abbvie, BMS and Galapagos., Grant/research support from: Abbvie, BMS and Galapagos., Sandra Meisalu: None declared, Johan K Wallman Consultant of: AbbVie, Amgen, Celgene, Eli Lilly, Novartis, Grant/research support from: AbbVie, Amgen, Eli Lilly, Novartis, Pfizer., Diane Lacaille: None declared

O03 ST97 Staphylococcus aureus and oxacillin resistance: an emerging challenge for microbiologists?

Background

The presence of cefoxitin and oxacillin resistance in Staphylococcus aureus isolates is suggestive of methicillin resistance (MRSA) with molecular detection of the mecA or mecC genes providing confirmation. The UK SMI and EUCAST guidelines for MRSA detection describe a subset of strains that exhibit reduced susceptibility to oxacillin and cefoxitin, though negative for mecA and mecC genes—frequently named borderline oxacillin-resistant S. aureus (BORSA). Local data noted a number of S. aureus isolates that matched the above phenotype leading to laboratory, clinical and epidemiological questions.

Methods

Routine samples were collected between August 2020 and April 2021 at West Midlands Health Security Agency Laboratory, Birmingham. If provisional results suggested an MRSA isolate, the following confirmatory tests were undertaken. Locally, clinical samples underwent susceptibility testing with cefoxitin disc diffusion and oxacillin gradient diffusion (MRSA screens) or Vitek 2 (non-MRSA screens). Isolates with discrepant results [susceptible to cefoxitin; resistant to oxacillin (MIC >2 mg/L) or vice versa] were sent to the reference laboratory at Colindale, UK for further testing, which included mecA or mecC gene detection by PCR and serotyping with Illumina sequencing for all isolates.

Results

In total, 53 isolates were sent to the reference lab of which 22 were confirmed to have an ST97 serotype. All 53 were negative by PCR for mecA and mecC genes. For the 22 isolates of ST97, local oxacillin MIC values ranged from 2 to 6 mg/L. Cefoxitin susceptibility was confirmed locally in all isolates. The 22 isolates were from 15 patients; wound swabs (n = 18); blood culture (n = 1), sputum (n = 1) and MRSA screen (n = 2). Median patient age was 48 years (IQR 38–59) with 5 being female and 10 male. A history of injecting drug use was documented in 53% (8/15).

Conclusions

BORSA remains a problem from a laboratory, clinical and infection control perspective. This work raises two important questions: what is the most appropriate local laboratory testing pathway and what is the clinical relevance of these isolates (i.e. can flucloxacillin be relied upon in treatment)? The ST97 serotype appears to be associated with skin and soft tissue infection and may be linked to people who inject drugs.

Outcomes from a hybrid implementation-effectiveness study of the living well during pregnancy Tele-coaching program for women at high risk of excessive gestational weight gain

Background

Excess gestational weight gain (GWG) is associated with short-term perinatal complications and longer term cardiometabolic risks for mothers and their babies. Dietitian counselling and weight gain monitoring for women at risk of high pregnancy weight gain is recommended by clinical practice guidelines. However, face-to-face appointments, during a time with high appointment burden, can introduce barriers to engaging with care. Telephone counselling may offer a solution. The Living Well during Pregnancy (LWdP) program is a dietitian-delivered telephone coaching program implemented within routine antenatal care for women at risk of excess GWG. This program evaluation used a hybrid implementation-effectiveness design guided by the RE-AIM framework to report on the primary outcomes (reach, adoption, implementation, maintenance) and secondary outcomes (effectiveness) of the LWdP intervention.

Methods

The LWdP program evaluation compared data from women participating in the LWdP program with a historical comparison group (pregnant women receiving dietetic counselling for GWG in the 12 months prior to the study). The primary outcomes were described for the LWdP program. Between group comparisons were used to determine effectiveness of achieving appropriate GWG and pre and post intervention comparisons of LWdP participants was used to determine changes to dietary intake and physical activity.

Results

The LWdP intervention group (n = 142) were compared with women in the historical comparison group (n = 49). Women in the LWdP intervention group attended 3.4 (95% CI 2.9–3.8) appointments compared with 1.9 (95% CI, 1.6–2.2) in the historical comparison group. GWG was similar between the two groups, including the proportion of women gaining weight above the Institute of Medicine recommendations (70% vs 73%, p = 0.69). Within group comparison showed that total diet quality, intake of fruit and vegetables and weekly physical activity were all significantly improved from baseline to follow-up for the women in LWdP, while consumption of discretionary food and time spent being sedentary decreased (all p < 0.05).

Conclusion

The LWdP program resulted in more women accessing care and positive improvements in diet quality, intuitive eating behaviours and physical activity. It was as effective as face-to-face appointments for GWG, though more research is required to identify how to engage women earlier in pregnancy and reduce appointment burden.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12913-022-08002-5.

Postpartum nutrition: Guidance for general practitioners to support high-quality care

BACKGROUND

General practitioners (GPs) are well placed to support new mothers with evidence-based nutrition care to eat well, live well and care for their new babies. Women who have recently given birth are highly motivated to eat well and seek information and support from GPs.

OBJECTIVE

The aim of this article is to review current recommendations on dietary intake for women after birth and how GPs can use this information to inform high-quality ongoing care.

DISCUSSION

The principles of healthy eating remain the same for all adults, and it is important that GPs support women to consume a wide variety of unprocessed, nutritious foods. Breastfeeding mothers require additional energy and nutrients such as protein, iodine, vitamin B12 and vitamin D, which are important in supporting healthy function and infant growth through breastmilk. GPs must take a person-centred approach to consultations, use respectful language and consider practical recommendations to support women in this exciting yet challenging time.

Polarisation-sensitive optical coherence tomography measurement of retardance in fibrosis, a non-invasive biomarker in patients with systemic sclerosis

Polarisation-sensitive optical coherence tomography (PS-OCT) offers a novel, non-invasive method of assessing skin fibrosis in the multisystem disease systemic sclerosis (SSc) by measuring collagen retardance. This study aimed to assess retardance as a biomarker in SSc. Thirty-one patients with SSc and 27 healthy controls (HC) underwent PS-OCT imaging. 'Skin score' was assessed by clinical palpation (0-3 scale). A subset of ten patients and ten age/sex-matched HC had a biopsy and longitudinal imaging. Histological assessment included quantification of epidermal thickness, collagen content (to assess fibrosis) and matrix metalloproteinase (MMP) activity (in situ zymography). PS-OCT images were assessed for epidermal thickness (structure) and fibrosis (retardance). Positive correlation was observed between epidermal thickness as measured by histology and structural PS-OCT (r = 0.79; p < 0.001). Retardance was: HC mean 0.21 (SD 0.21) radian/pixel; SSc skin score 0, 0.30 (0.19); skin score 1, 0.11 (0.16); skin score 2, 0.06 (0.12); skin score 3, 0.36 (0.35). Longitudinal retardance decreased at one-week across groups, increasing at one-month for HC/skin score 0-1; HC biopsy site retardance suggests scarring is akin to fibrosis. Relationships identified between retardance with both biopsy and skin score data indicate that retardance warrants further investigation as a suitable biomarker for SSc-related fibrosis.

Modeling the Predictive Value of Evidence-Based Referral Criteria to Support Healthy Gestational Weight Gain among an Australian Pregnancy Cohort

Globally, there has been a renewed focus on addressing gestational weight gain (GWG). In Australia, the Department of Health pregnancy care guidelines recommend women be offered routine weighing and receive brief nutritional and physical activity support during antenatal care visits. Women gaining weight outside the Institute of Medicine (IOM)'s weight gain reference values are further recommended to be referred to a dietitian. However, professional and organizational barriers, including an absence of weight gain referral pathways and limited workforce resources, exist with the translation and scaling of these recommendations into practice. This study aimed to explore patterns of GWG among a cohort of Australian pregnant women and to determine if pregnancy weight gains of above or below 2 kg or 5 kg in the second and third trimester can be used to predict total GWG outside recommendations. Sensitivity, specificity, negative, and positive likelihood ratios were calculated. The most predictive time point was 24 weeks' gestation using the minimum weight change parameter of +/-2 kg, demonstrating reasonable sensitivity (0.81, 95% CI 0.61-0.83) and specificity (0.72, 95% CI 0.61-0.83), resulting in 55% (n = 72/131) of the cohort qualifying for dietetic referral. Given the current health service constraints, a review of dietetic services within maternity care is warranted.

Communication of Nutrition Information by Influencers on Social Media: A Scoping Review

ISSUE ADDRESSED

Although government promoted public health, social media and media campaigns have communicated nutrition information, the Australian population remain chronic under-consumers of fruit and vegetables and over-consumers of ultra-processed foods. This scoping review aimed to determine how social media influencers (SMI) communicate nutrition information and the factors that influence the popularity of messages. Identified factors could inform how governments may utilise social media to impact positively on food choices.

METHODS

Nine databases were searched in the past 5 years (2016-2021). After relevant sources were identified, entire texts of the grey literature and the 'Results' sections of the academic literature were coded. Using Microsoft Word, each key feature of the relevant text was highlighted, and the relevant code was recorded. Inductive coding was utilised where codes were created based on the text itself. These codes were then sorted iteratively into relevant themes and subthemes.

RESULTS

Eleven studies were included. From these sources, five themes were identified. These were, 1) Promoting Dietary Change, 2) Certain Modes/Styles of Content Delivery, 3) An Attractive Individual, 4) Language Features and 5) Appearing Connected to the Audience.

CONCLUSION

SMI are selective in their content and communication techniques to ensure their nutrition messages are popular with social media users. These methods exhibited by SMI could inform strategies to build trust in government messages about food and nutrition. SO WHAT?: SMI are able to nurture trust and exert influence on followers. It may be possible to leverage existing SMI to deliver specific nutrition messages to their audiences.

Development of polymorphic markers in the immune gene complex loci of cattle

The addition of cattle health and immunity traits to genomic selection indices holds promise to increase individual animal longevity and productivity, and decrease economic losses from disease. However, highly variable genomic loci that contain multiple immune-related genes were poorly assembled in the first iterations of the cattle reference genome assembly and underrepresented during the development of most commercial genotyping platforms. As a consequence, there is a paucity of genetic markers within these loci that may track haplotypes related to disease susceptibility. By using hierarchical assembly of bacterial artificial chromosome inserts spanning 3 of these immune-related gene regions, we were able to assemble multiple full-length haplotypes of the major histocompatibility complex, the leukocyte receptor complex, and the natural killer cell complex. Using these new assemblies and the recently released ARS-UCD1.2 reference, we aligned whole-genome shotgun reads from 125 sequenced Holstein bulls to discover candidate variants for genetic marker development. We selected 124 SNPs, using heuristic and statistical models to develop a custom genotyping panel. In a proof-of-principle study, we used this custom panel to genotype 1,797 Holstein cows exposed to bovine tuberculosis (bTB) that were the subject of a previous GWAS study using the Illumina BovineHD array. Although we did not identify any significant association of bTB phenotypes with these new genetic markers, 2 markers exhibited substantial effects on bTB phenotypic prediction. The models and parameters trained in this study serve as a guide for future marker discovery surveys particularly in previously unassembled regions of the cattle genome.

Implementation of the Living Well During Pregnancy Telecoaching Program for Women at High Risk of Excessive Gestational Weight Gain: Protocol for an Effectiveness-Implementation Hybrid Study

Background

Despite comprehensive guidelines for healthy gestational weight gain (GWG) and evidence for the efficacy of dietary counseling coupled with weight monitoring on reducing excessive GWG, reporting on the effectiveness of interventions translated into routine antenatal care is limited.

Objective

This study aims to implement and evaluate the Living Well during Pregnancy (LWdP) program in a large Australian antenatal care setting. Specifically, the LWdP program will be incorporated into usual care and delivered to a population of pregnant women at risk of excessive GWG through a dietitian-delivered telephone coaching service.

Methods

Metrics from the RE-AIM (Reach, Effectiveness, Adoption, Implementation, and Maintenance) framework will guide the evaluation in this hybrid effectiveness-implementation study. All women aged ≥16 years without pre-exiting diabetes with a prepregnancy BMI >25 kg/m² and gaining weight above recommendations at <20 weeks’ gestation who are referred for dietetic care during the 12-month study period will be eligible for participation. The setting is a metropolitan hospital at which approximately 6% of the national births in Australia take place each year. Eligible participants will receive up to 10 telecoaching calls during their pregnancy. Primary outcomes will be service level indicators of reach, adoption, and implementation that will be compared with a retrospective control group, and secondary effectiveness outcomes will be participant-reported anthropometric and behavioral outcomes; all outcomes will be assessed pre- and postprogram completion. Additional secondary outcomes relate to the costs associated with program implementation and pregnancy outcomes gathered through routine clinical service data.

Results

Data collection of all variables was completed in December 2020, with results expected to be published by the end of 2021.

Conclusions

This study will evaluate the implementation of an evidence-based intervention into routine health service delivery and will provide the practice-based evidence needed to inform decisions about its incorporation into routine antenatal care.

International Registered Report Identifier (IRRID)

DERR1-10.2196/27196

Prevention of Gestational Diabetes: The Role of Dietary Intake, Physical Activity, and Weight before, during, and between Pregnancies

Gestational diabetes mellitus (GDM) is the most common complication of pregnancy and a significant clinical and public health problem with lifelong and intergenerational adverse health consequences for mothers and their offspring. The preconception, early pregnancy, and interconception periods represent opportune windows to engage women in preventive and health promotion interventions. This review provides an overview of findings from observational and intervention studies on the role of diet, physical activity, and weight (change) during these periods in the primary prevention of GDM. Current evidence suggests that supporting women to increase physical activity and achieve appropriate weight gain during early pregnancy and enabling women to optimize their weight and health behaviors prior to and between pregnancies have the potential to reduce rates of GDM. Translation of current evidence into practice requires further development and evaluation of co-designed interventions across community, health service, and policy levels to determine how women can be reached and supported to optimize their health behaviors before, during, and between pregnancies to reduce GDM risk.

The evolution of pulmonary function in childhood onset Mucopolysaccharidosis type I

Respiratory outcomes in Mucopolysaccharidosis Type I (MPS I), have mainly focused on upper airway obstruction, with the evolution of the restrictive lung disease being poorly documented. We report the long-term pulmonary function outcomes and examine the potential factors affecting these in 2 cohorts of MPS I patients, those who have undergone Haematopoietic Stem Cell Transplantation (HSCT) and those treated with Enzyme Replacement Therapy (ERT). The results were stratified using the American Thoracic Society (ATS) guidelines. 66 patients, capable of adequately performing testing, were identified by a retrospective case note review, 46 transplanted (45 Hurler, 1 Non-Hurler) and 20 having ERT (17 Non-Hurler and 3 Hurler diagnosed too late for HSCT). 5 patients died; 4 in the ERT group including the 3 Hurler patients. Overall 14% of patients required respiratory support (non-invasive ventilation (NIV) or supplemental oxygen)) at the end of follow up. Median length of follow-up was 12.2 (range = 4.9-32) years post HSCT and 14.34 (range = 3.89-20.4) years on ERT. All patients had restrictive lung disease. Cobb angle and male sex were significantly associated with more severe outcomes in the HSCT cohort, with 49% having severe to very severe disease. In the 17 Non-Hurler ERT treated patients there was no variable predictive of severity of disease with 59% having severe to very severe disease. During the course of follow up 67% of the HSCT cohort had no change or improved pulmonary function as did 52% of the ERT patients. However, direct comparison between therapeutic modalities was not possible. This initial evidence would suggest that a degree of restrictive lung disease is present in all treated paediatrically diagnosed MPS I and is still a significant cause of morbidity, though further stratification incorporating diffusing capacity for carbon monoxide (DLCO) is needed.

Radiological characterisation of graphite components in Advanced Gas-cooled Reactor cores

As the Advanced Gas-cooled Reactors approach the end of generation, research and characterisation are required to support the decommissioning strategy. Radiological data for AGR graphite are negligible and the radiological inventory of the AGR core and other graphite components rely on activation modelling. This is the first study of C-14 activity and its release behaviour in AGR core graphite and its associated carbonaceous deposits and provides valuable information that can support decommissioning activities. In combination with corresponding studies on Magnox core graphite, significant understanding is attained on the main C-14 precursors in the graphite and the deposits. In addition, this study reports C-14, H-3 and gamma spectrometry data on AGR graphite fuel sleeves. This is a waste stream that is currently stored in heavily engineered stores at a significant cost. The data indicate that alternative storage and disposal options with a lower environmental and financial impact are worth considering.

Recovery of an urbanised estuary: Clean-up, de-industrialisation and restoration of redundant dock-basins in the Mersey

For much of the 20th century, the Mersey in North West England was one of the worst polluted estuaries in Europe. Water from a range of polluting industries plus domestic sewage was discharged into the Mersey Catchment and Estuary. Recovery came through a concerted clean-up campaign and tightening environmental regulations, partly driven by European Commission Directives, coupled with de-industrialisation from the 1970s onward. Recovery of oxygen levels in the Estuary led to the return of a productive ecosystem. This led to conservation designations, but also concerns about transfer of pollutants to higher trophic levels in fish, birds and humans. As part of urban renewal, ecosystems in disused dock basins were restored using mussel biofiltration and artificial de-stratification, facilitating commercial redevelopment and creation of a tourist destination. The degradation and recovery of the Mersey from peak-pollution in the mid-20th century is put in the context of wider environmental change and briefly compared to other systems to develop a hysteresis model of degradation and recovery, often to novel ecosystems.

Coronavirus disease 2019 communication: novel sign language system to aid surgical tracheostomy whilst wearing a respirator

BACKGROUND

The coronavirus disease 2019 pandemic has necessitated rapid adaptations to all levels of clinical practice. Recently produced guidelines have suggested additional considerations for tracheostomy and advocated full personal protective equipment, including filtering facepiece code 3 masks. Air seal with filtering facepiece code 3 masks is often challenging, and full-face respirators and powered air-purifying respirators with hoods need to be employed. The infection prevention benefits of this equipment are accompanied by potential issues in communication.

OBJECTIVE

In an attempt to minimise surgical error through miscommunication, the authors sought to introduce a simple sign language system that could be used as an adjunct during surgery.

RESULTS

Following evaluation of pre-existing sign language platforms and consideration of multiple surgical factors, 14 bespoke hand signals were ultimately proposed.

CONCLUSION

Whilst this novel sign language system aims to bridge the communicative gap created by additional personal protective equipment, further development and validation of the proposed tool might be beneficial.

Probiotics for the Prevention of Gestational Diabetes Mellitus in Overweight and Obese Women: Findings From the SPRING Double-Blind Randomized Controlled Trial

OBJECTIVE

Given the role of gut microbiota in regulating metabolism, probiotics administered during pregnancy might prevent gestational diabetes mellitus (GDM). This question has not previously been studied in high-risk overweight and obese pregnant women. We aimed to determine whether probiotics (Lactobacillus rhamnosus and Bifidobacterium animalis subspecies lactis) administered from the second trimester in overweight and obese women prevent GDM as assessed by an oral glucose tolerance test (OGTT) at 28 weeks' gestation. Secondary outcomes included maternal and neonatal complications, maternal blood pressure and BMI, and infant body composition.

RESEARCH DESIGN AND METHODS

This was a double-blind randomized controlled trial of probiotic versus placebo in overweight and obese pregnant women in Brisbane, Australia.

RESULTS

The study was completed in 411 women. GDM occurred in 12.3% (25 of 204) in the placebo arm and 18.4% (38 of 207) in the probiotics arm (P = 0.10). At OGTT, mean fasting glucose was higher in women randomized to probiotics (79.3 mg/dL) compared with placebo (77.5 mg/dL) (P = 0.049). One- and two-hour glucose measures were similar. Preeclampsia occurred in 9.2% of women randomized to probiotics compared with 4.9% in the placebo arm (P = 0.09). Excessive weight gain occurred in 32.5% of women in the probiotics arm (55 of 169) compared with 46% in the placebo arm (81 of 176) (P = 0.01). Rates of small for gestational age (<10th percentile) were 2.4% in the probiotics arm (5 of 205) and 6.5% in the placebo arm (13 of 199) (P = 0.042). There were no differences in other secondary outcomes.

CONCLUSIONS

The probiotics used in this study did not prevent GDM in overweight and obese pregnant women.

Implementation of gestational weight gain guidelines - what's more effective for ensuring weight recording in pregnancy?

Background

Pregnant women who gain weight in accordance with guidelines have the lowest risk of pregnancy and birth-related complications. However, evidence-practice gaps often exist. To address pregnancy weight management barriers, a stepped implementation science approach was used, comprising targeted in-services, provision of scales for clinic rooms, and changes to routine weight recording in a hospital electronic medical record. The aim of this study was to assess the cumulative influence of evidence-based interventions on staff’s compliance to recording of antenatal weights.

Methods

Retrospective data analysis of weight recording over three 15-month cohorts across April 2014–December 2017. Variables calculated from data included: proportion of women with weight recorded at booking and proportion of women who had a weight recorded at each visit. Generalised estimating equation modelling was used to examine differences in weight recording compliance rates between cohorts, pre-pregnancy body mass index categories, model of care and clinicians.

Results

There were approximately 13,000 pregnancies in each cohort. The proportion of women who had a weight recorded at each visit per cohort differed significantly between cohorts from 4.2% (baseline), 18.9% (scales and in-services) to 61.8% (medical record prompts), p < 0.001.

Conclusion

Significant improvements were achieved through systematic barrier analysis and subsequent mapping and implementation of appropriate and effective interventions. Improvements were observed across the entire service, in all models of care with all professional groups demonstrating increased recording of weights.

9 Using what people value to develop new interventions in palliative care: a multilevel level review approach

Introduction

Complex interventions are common in palliative care (PC) but are difficult to evaluate. Complementary therapies (CT) are one type of widely-used complex intervention for which there is inconclusive evidence. No systematic review has been conducted in PC of trials or of qualitative studies of patients’ views of CTs. There are novel approaches with established exemplars of using both types of reviews to help develop more clinically appropriate interventions. These approaches are in their infancy in PC research and have much to offer the specialism.

Aims

Using our on-going review on CT we present as an exemplar in PC an approach to draw together the findings of trials and qualitative studies in a data table (matrix) to contrast what patients value and want with how the intervention is tested.

Methods

We sought trials on the effectiveness of CT and qualitative studies on patients’ perspectives about these therapies. Our primary outcomes for trials included anxiety. Eight databases were searched in 2017. Citations and full-text papers were reviewed to identify relevant studies. Meta-analyses pooled trial data where appropriate and a thematic synthesis is being undertaken to understand patient experience. These findings will be combined in a matrix to explore similarities and differences.

Results

19 trials and five qualitative studies were included. Data analysis and development of the matrix which includes intervention content and patients’ needs is currently underway. We will present the final matrix framework.

Conclusions

Our approach demonstrates a potential way in PC to enhance development of practice appropriate complex interventions.

A qualitative study of the role of Australian general practitioners in the surgical management of obesity

General practitioners (GPs) are increasingly managing patients with class 2 and 3 obesity (body mass index [BMI] > 35 and 40 kg/m² , respectively). Bariatric surgery is considered for patients with class 2 obesity and comorbidities or class 3 obesity where sustained weight loss using non-surgical interventions has not been achieved. In Australia, GPs facilitate access to surgery through referral processes, but the nature of GP involvement in bariatric pre- and post-surgery care is currently unclear. This qualitative study involved 10 in-depth interviews with GPs and 20 interviews with adults who had all undergone laparoscopic adjustable gastric banding (LAGB) for weight management in Tasmania, Australia. Interviews were transcribed and analysed thematically. Referrals for bariatric surgery commonly occurred at the patient's request or to manage comorbidity. Consistent with previous studies, for GPs, referral patterns were influenced by previous case experience and patients' financial considerations. Accessibility of surgery was also a consideration. Post-surgery, there was a lack of clarity about the role of GPs, with patients generally preferring the surgical team to manage the LAGB. In bariatric surgery, patient preference for surgery, access and comorbidity are key drivers for referral and post-surgical monitoring and support. Greater role clarity and enhanced collaboration between surgeons, GPs and patients following surgery is likely to enhance the experience and outcomes for patients.

Fine-mapping host genetic variation underlying outcomes to Mycobacterium bovis infection in dairy cows

BACKGROUND

Susceptibility to Mycobacterium bovis infection in cattle is governed in part by host genetics. However, cattle diagnosed as infected with M. bovis display varying signs of pathology. The variation in host response to infection could represent a continuum since time of exposure or distinct outcomes due to differing pathogen handling. The relationships between host genetics and variation in host response and pathological sequelae following M. bovis infection were explored by genotyping 1966 Holstein-Friesian dairy cows at 538,231 SNPs with three distinct phenotypes. These were: single intradermal cervical comparative tuberculin (SICCT) test positives with visible lesions (VLs), SICCT-positives with undetected visible lesions (NVLs) and matched controls SICCT-negative on multiple occasions.

RESULTS

Regional heritability mapping identified three loci associated with the NVL phenotype on chromosomes 17, 22 and 23, distinct to the region on chromosome 13 associated with the VL phenotype. The region on chromosome 23 was at genome-wide significance and candidate genes overlapping the mapped window included members of the bovine leukocyte antigen class IIb region, a complex known for its role in immunity and disease resistance. Chromosome heritability analysis attributed variance to six and thirteen chromosomes for the VL and NVL phenotypes, respectively, and four of these chromosomes were found to explain a proportion of the phenotypic variation for both the VL and NVL phenotype. By grouping the M. bovis outcomes (VLs and NVLs) variance was attributed to nine chromosomes. When contrasting the two M. bovis infection outcomes (VLs vs NVLs) nine chromosomes were found to harbour heritable variation. Regardless of the case phenotype under investigation, chromosome heritability did not exceed 8% indicating that the genetic control of bTB resistance consists of variants of small to moderate effect situated across many chromosomes of the bovine genome.

CONCLUSIONS

These findings suggest the host genetics of M. bovis infection outcomes is governed by distinct and overlapping genetic variants. Thus, variation in the pathology of M. bovis infected cattle may be partly genetically determined and indicative of different host responses or pathogen handling. There may be at least three distinct outcomes following M. bovis exposure in dairy cattle: resistance to infection, infection resulting in pathology or no detectable pathology.

The support needs of patients waiting for publicly funded bariatric surgery - implications for health service planners

The objective of this study was to investigate the experience of waiting for publicly funded bariatric surgery in an Australian tertiary healthcare setting. Focus groups and individual interviews involving people waiting for or who had undergone publicly funded bariatric surgery were audio-recorded, transcribed and analysed thematically. A total of 11 women and 6 men engaged in one of six focus groups in 2014, and an additional 10 women and 9 men were interviewed in 2015. Mean age was 53 years (range 23-66); mean waiting time was 6 years (range 0-12), and mean time since surgery was 4 years (range 0-11). Waiting was commonly reported as emotionally challenging (e.g. frustrating, depressing, stressful) and often associated with weight gain (despite weight-loss attempts) and deteriorating physical health (e.g. development of new or worsening obesity-related comorbidity or decline in mobility) or psychological health (e.g. development of or worsening depression). Peer support, health and mental health counselling, integrated care and better communication about waitlist position and management (e.g. patient prioritization) were identified support needs. Even if wait times cannot be reduced, better peer and health professional supports, together with better communication from health departments, may improve the experience or outcomes of waiting and confer quality-of-life gains irrespective of weight loss.

Optimising early neonatal nutrition using translational research methodology

AIM

Preterm birth has been described as a 'nutritional emergency', with these infants often born with minimal nutrition reserves. Failure to provide adequate early nutrition jeopardises growth and neurodevelopment. Consensual nutrition guidelines exist for infants who weigh <1500 g; however, audits have identified shortfalls in their adherence, consequently highlighting an evidence-practice gap. This work aimed to identify the barriers to the delivery of early optimal nutrition in a tertiary-level Neonatal Critical Care Unit to inform an implementation project to ensure best practice care.

METHODS

A total of 19 medical and nursing staff participated in semistructured interviews. Transcripts underwent qualitative content analysis to examine barriers to early infant feeding. Barriers were categorised into domains from the Theoretical Domains Framework (TDF), and potential interventions were identified using evidence-based strategy selection guides that articulates with the TDF.

RESULTS

Four main themes, with associated sub-themes, emerged, including: (i) Roles and responsibilities, (ii) decision making, (iii) disconnect between beliefs and the application of evidence and (iv) monitoring and awareness. Eight barrier 'domains' were identified using TDF-Knowledge; memory, attention and decision processes; skills; professional/social role and identity; beliefs about capabilities; beliefs about consequences; environmental context and resources; and social influences.

CONCLUSIONS

Using a systematic approach to analysing barriers to early nutrition and mapping through the TDF and behaviour change wheel, the most effective interventions to modify practice have been identified. These will be monitored in ongoing audits.

Nutrition care by general practitioners: Enhancing women's health during and after pregnancy

BACKGROUND

The importance of healthy dietary behaviours during pregnancy and after birth is well recognised given the short-term and long-term effects on the health of mothers and infants. Pregnancy is an ideal time to implement health behaviour changes, as women are receptive to health messages at this time. The majority of pregnant women have regular, ongoing contact with general practitioners (GPs), particularly during early pregnancy.

OBJECTIVE

This paper provides an overview of the latest evidence regarding the nutrition requirements of women during and after birth, and describes simple ways that GPs can incorporate brief, effective nutrition care into standard consultations.

DISCUSSION

Two approaches for enhancing the nutrition care provided by GPs are presented. These approaches are for GPs to feel confident in raising the topic of nutrition in standard consultations and being equipped with effective, evidence-based messages that can be incorporated into consultations. Collectively, these approaches promote healthy dietary behaviours for intergenerational benefits.

Key Points to Facilitate the Adoption of Computer-Based Assessments

There are strong pedagogical arguments in favor of adopting computer-based assessment. The risks of technical failure can be managed and are offset by improvements in cost-effectiveness and quality assurance capability. Academic, administrative, and technical leads at an appropriately senior level within an institution need to be identified, so that they can act as effective advocates. All stakeholder groups need to be represented in undertaking a detailed appraisal of requirements and shortlisting software based on core functionality, summative assessment life cycle needs, external compatibility, security, and usability. Any software that is a candidate for adoption should be trialed under simulated summative conditions, with all stakeholders having a voice in agreeing the optimum solution. Transfer to a new system should be carefully planned and communicated, with a programme of training established to maximize the success of adoption.

N-fixation in legumes--An assessment of the potential threat posed by ozone pollution

The growth, development and functioning of legumes are often significantly affected by exposure to tropospheric ozone (O3) pollution. However, surprisingly little is known about how leguminous Nitrogen (N) fixation responds to ozone, with a scarcity of studies addressing this question in detail. In the last decade, ozone impacts on N-fixation in soybean, cowpea, mung bean, peanut and clover have been shown for concentrations which are now commonly recorded in ambient air or are likely to occur in the near future. We provide a synthesis of the existing literature addressing this issue, and also explore the effects that may occur on an agroecosystem scale by predicting reductions in Trifolium (clovers) root nodule biomass in United Kingdom (UK) pasture based on ozone concentration data for a "high" (2006) and "average" ozone year (2008). Median 8% and 5% reductions in clover root nodule biomass in pasture across the UK were predicted for 2006 and 2008 respectively. Seasonal exposure to elevated ozone, or short-term acute concentrations >100 ppb, are sufficient to reduce N-fixation and/or impact nodulation, in a range of globally-important legumes. However, an increasing global burden of CO2, the use of artificial fertiliser, and reactive N-pollution may partially mitigate impacts of ozone on N-fixation.