Subsequent Renal Cancer Among Childhood Cancer Survivors: Analysis of Surveillance, Epidemiology, and End Results.

Renal cancer, although still rare among individuals under 45 years of age, is on the rise in the general population. The risk and timing of subsequent renal cancer in survivors of childhood cancer is not well established. Using the SEER registry, we reported the incidence of subsequent malignant renal neoplasms after treatment for primary malignancy diagnosed under 20 years of age. We evaluated clinical characteristics, standardized incidence ratio (SIR), and Kaplan-Meier survival estimates. Fifty-three survivors developed subsequent renal cancer (54 total cases). Of these, 54.7% were female, 88.7% were white, and 13.2% were Hispanic. Mean ages at primary malignancy and subsequent renal cancer were 10.1 and 31.1 years, respectively. Forty-seven cases were second cancers, 6 were third, and 1 was fourth. For survivors of childhood cancer, the overall SIR for renal cancer was 4.52 (95% CI: 3.39-5.89). The 5-year overall survival rate after development of subsequent renal cancer was 73% (95% CI: 58%-83%). Renal cancer occurs 4.5 times more frequently in childhood cancer survivors than in the general population, necessitating long-term care considerations.

Time-resolved turbulent dynamo in a laser plasma.

Understanding magnetic-field generation and amplification in turbulent plasma is essential to account for observations of magnetic fields in the universe. A theoretical framework attributing the origin and sustainment of these fields to the so-called fluctuation dynamo was recently validated by experiments on laser facilities in low-magnetic-Prandtl-number plasmas ([Formula: see text]). However, the same framework proposes that the fluctuation dynamo should operate differently when [Formula: see text], the regime relevant to many astrophysical environments such as the intracluster medium of galaxy clusters. This paper reports an experiment that creates a laboratory [Formula: see text] plasma dynamo. We provide a time-resolved characterization of the plasma's evolution, measuring temperatures, densities, flow velocities, and magnetic fields, which allows us to explore various stages of the fluctuation dynamo's operation on seed magnetic fields generated by the action of the Biermann-battery mechanism during the initial drive-laser target interaction. The magnetic energy in structures with characteristic scales close to the driving scale of the stochastic motions is found to increase by almost three orders of magnitude and saturate dynamically. It is shown that the initial growth of these fields occurs at a much greater rate than the turnover rate of the driving-scale stochastic motions. Our results point to the possibility that plasma turbulence produced by strong shear can generate fields more efficiently at the driving scale than anticipated by idealized magnetohydrodynamics (MHD) simulations of the nonhelical fluctuation dynamo; this finding could help explain the large-scale fields inferred from observations of astrophysical systems.

Atom Probe Tomography Investigation of Clustering in Model P2O5-Doped Borosilicate Glasses for Nuclear Waste Vitrification.

Atom probe tomography (APT) has been utilized to investigate the microstructure of two model borosilicate glasses designed to understand the solubility limits of phosphorous pentoxide (P2O5). This component is found in certain high-level radioactive defence wastes destined for vitrification, where phase separation can potentially lead to a number of issues relating to the processing of the glass and its long-term chemical and structural stability. The development of suitable focused ion beam (FIB)-preparation routes and APT analysis conditions were initially determined for the model glasses, before examining their detailed microstructures. In a 3.0 mol% P2O5-doped glass, both visual inspection and sensitive statistical analysis of the APT data show homogeneous microstructures, while raising the content to 4.0 mol% initiates the formation of phosphorus-enriched nanoscale precipitates. This study confirms the expected inhomogeneities and phase separation of these glasses and offers routes to characterizing these at near-atomic scale resolution using APT.

Fostering resilience in young people with intellectual disabilities using a 'settings' approach.

The need to foster resilience amongst young people with intellectual disabilities is increasingly recognised within policy. Critically, understanding of the actual means by which this aspiration might be most sensitively and effectively met is considered weak. This paper reports on an exploratory case-study of a social enterprise community café - The Usual Place - that through the promotion of employability, seeks to promote resilience amongst its young 'trainees' with intellectual disabilities. Two research questions were set: "how is 'resilience' conceptualized within the organisation" and "what features within the organisation are significant in fostering resilience"? We identify a range of significant features associated with being able to successfully foster resilience - the need for a foundational 'whole organisation'(settings) approach based on high levels of participation and choice; the negotiation of a constructive dynamic tension between 'support' and 'exposure'; and the embedding of these actions in embodied actions and day-to-day organisational activities.

An Applicant's Residency Program Region May Influence Where They Complete Fellowship.

The primary goal of this study was to determine if an applicant's geographic region of residency was associated with where they matched for fellowship. San Francisco Match (SF Match) provided results regarding applicant data and match results from 2014-2018 for orthopaedic subspecialties except hand and shoulder and elbow. Residency programs were divided into five regions: (Northeast [NE], Southeast [SE], Midwest [MW], Southwest [SW] and West [W]). The MW region had the fewest number of fellowship positions per applicant (0.62), the W region had the most (1.7). Applicants from each region were significantly (p < 0.0001) more likely to complete fellowship in the same region where they completed residency, and there were significant (p < 0.05) differences between regions for specific subspecialties. There are imbalances in terms of the number of applicants and specific fellowship spots available in each region. This imbalance seems important considering the strong associations found between the region in which an applicant completes residency and fellowship. Level of Evidence: Level 3. (Journal of Surgical Orthopaedic Advances 30(1):030-035, 2021).

Process quality indicators for musculoskeletal injuries in the emergency department.

OBJECTIVES: Measuring quality of care for musculoskeletal injuries presenting to the ED is important given their prevalence, variations in care, the associated morbidity and financial impacts and pressure to achieve time-based performance measures. Process quality indicators (QIs) provide a quantitative method to measure the actions taken during healthcare delivery. This study aimed to develop a set of process QIs to measure the quality of care for musculoskeletal injuries in the ED. METHODS: A multiphase mixed-methods study was undertaken from 2015 to 2018, commencing with a systematic review to identify existing musculoskeletal QIs. This review, along with current evidence regarding musculoskeletal injury management in the ED, informed an expert panel who developed a preliminary set of process QIs. The preliminary set was field tested at eight EDs in Queensland, Australia, to determine the validity, reliability, feasibility and usefulness of each QI. Prospective observational data collection and retrospective chart audits were used to score the process QIs. These results were presented to the expert panel who determined a final QI set. RESULTS: A total of 633 patients were recruited and 36 process QIs included in the final set. The QIs covered important domains of pain assessment and management, history taking and physical examination, appropriateness and timeliness of imaging, fracture management, mobility, patient information and discharge considerations including safety and referrals. The best performing QIs included the use of opioid sparing analgesics and avoiding prescription of 'just in case' opioids at discharge. The poorest performing QIs included the completion of spinal red flag questioning and referrals for fragility fractures. CONCLUSION: An evidence and best practice-based set of QIs has been developed to allow EDs to assess and quantify the quality of care for musculoskeletal presentations. This will allow EDs to compare and benchmark, leading to the optimisation of care for patients.

Developed turbulence and nonlinear amplification of magnetic fields in laboratory and astrophysical plasmas.

The visible matter in the universe is turbulent and magnetized. Turbulence in galaxy clusters is produced by mergers and by jets of the central galaxies and believed responsible for the amplification of magnetic fields. We report on experiments looking at the collision of two laser-produced plasma clouds, mimicking, in the laboratory, a cluster merger event. By measuring the spectrum of the density fluctuations, we infer developed, Kolmogorov-like turbulence. From spectral line broadening, we estimate a level of turbulence consistent with turbulent heating balancing radiative cooling, as it likely does in galaxy clusters. We show that the magnetic field is amplified by turbulent motions, reaching a nonlinear regime that is a precursor to turbulent dynamo. Thus, our experiment provides a promising platform for understanding the structure of turbulence and the amplification of magnetic fields in the universe.

Understanding ED performance after the implementation of activity-based funding.

OBJECTIVE: The aim of this study was to describe emergency department (ED) activities and staffing after the introduction of activity-based funding (ABF) to highlight the challenges of new funding arrangements and their implementation. METHODS: A retrospective study of public hospital EDs in Queensland, Australia, was undertaken for 2013-2014. The ED and hospital characteristics are described to evaluate the alignment between activity and resourcing levels and their impact on performance. RESULTS: Twenty EDs participated (74% response rate). Weighted activity units (WAUs) and nursing staff varied based on hospital type and size. Larger hospital EDs had on average 9076 WAUs and 13 full time equivalent (FTE) nursing staff per 1000 WAUs; smaller EDs had on average 4587 WAUs and 10.3 FTE nursing staff per 1000 WAUs. Medical staff was relatively consistent (8.1-8.7 FTE per 1000 WAUs). The proportion of patients admitted, discharged, or transferred within 4 hours ranged from 73% to 79%. The ED medical and nursing staffing numbers did not correlate with the 4-hour performance. CONCLUSION: Substantial variation exists across Queensland EDs when resourcing service delivery in an activity-based funding environment. Historical inequity persists in the staffing profiles for regional and outer metropolitan departments. The lack of association between resourcing and performance metrics provides opportunity for further investigation of efficient models of care.

Developing quality indicators for the care of patients with musculoskeletal injuries in the Emergency Department: study protocol.

BACKGROUND: Musculoskeletal injuries are a common presentation to the Emergency Department (ED). The quality of care provided is important to the patients, clinicians, organisations and purchasers of care. In the context of the increasing burden of musculoskeletal disease, quality of care needs to occur despite financial impacts, variations in care, and pressure to reach time-based performance measures. This study aims to develop a suite of evidence-based quality indicators (QI) which will provide a measure of the quality of care for patients with musculoskeletal injuries in the ED. METHODS: This study will utilise a multi-phase mixed methods protocol, commencing with a systematic review of the literature to identify and critically appraise existing QIs for musculoskeletal injuries in the ED. The study will then build on the gaps identified in the review to develop a suite of preliminary QIs, in accordance with established research methodology under the governance of an expert panel. The developed QI set will then be field-tested for feasibility and validity in selected EDs. After field-testing, the suite will be refined in consultation with the expert panel and finalised using a formal voting process. DISCUSSION: The assessment of performance against QIs provides a quantitative measure for the quality of care provided to patients, to identify and target quality improvement activities. The QIs developed through this study will be evidence-based and balanced across the areas of structures, processes and outcomes. The rigorous methodology used to develop and test the QIs will result in QIs that are meaningful, valid, feasible to collect and efficiently measurable, amenable to improvement, and selected by experts in the emergency medicine field. The final QI suite will have applications across EDs that affords comparison, benchmarking and optimisation of emergency care for patients.

Legal and Medical Aspects of Diverse Gender Identity in Childhood.

Diagnosis of gender identity dysphoria among children and young people appears to be increasing around the developed world. For a small proportion of children, the mismatch between their natal physical characteristics and desired gender causes significant distress. Though there are now accepted medical interventions that can assist in these cases, there is a lack of congruence between clinical practice and legal regimes governing the treatment of children and young people in this area. This article seeks to demonstrate the difficulties that may arise by providing a detailed explanation of medical interventions, juxtaposed with a discussion of the legalities of children's consent in some overseas common law jurisdictions.

Propofol or Ketofol for Procedural Sedation and Analgesia in Emergency Medicine-The POKER Study: A Randomized Double-Blind Clinical Trial.

STUDY OBJECTIVE: We determine whether emergency physician-provided deep sedation with 1:1 ketofol versus propofol results in fewer adverse respiratory events requiring physician intervention when used for procedural sedation and analgesia. METHODS: Consenting patients requiring deep sedation were randomized to receive either ketofol or propofol in a double-blind fashion according to a weight-based dosing schedule. The primary outcome was the occurrence of a respiratory adverse event (desaturation, apnea, or hypoventilation) requiring an intervention by the sedating physician. Secondary outcomes included hypotension and patient satisfaction. RESULTS: Five hundred seventy-three patients were enrolled and randomized, 292 in the propofol group and 281 in the ketofol group. Five percent in the propofol group and 3% in the ketofol group met the primary outcome, an absolute difference of 2% (95% confidence interval [CI] -2% to 5%). Patients receiving propofol were more likely to become hypotensive (8 versus 1%; difference 7%; 95% CI 4% to 10%). Patient satisfaction was very high in both groups (10/10; interquartile range 10 to 10/10), and although the ketofol group was more likely to experience severe emergence delirium (5% versus 2%; difference 3%; 95% CI 0.4% to 6%), they had lower pain scores at 30 minutes postprocedure. Other secondary outcomes were similar between groups. CONCLUSION: Ketofol and propofol resulted in a similar incidence of adverse respiratory events requiring the intervention of the sedating physician. Although propofol resulted in more hypotension, the clinical relevance of this is questionable, and both agents are associated with high levels of patient satisfaction.

The National Emergency Access Target (NEAT) and the 4-hour rule: time to review the target.

OBJECTIVE: We explored the relationship between the National Emergency Access Target (NEAT) compliance rate, defined as the proportion of patients admitted or discharged from emergency departments (EDs) within 4 hours of presentation, and the risk-adjusted in-hospital mortality of patients admitted to hospital acutely from EDs. DESIGN, SETTING AND PARTICIPANTS: Retrospective observational study of all de-identified episodes of care involving patients who presented acutely to the EDs of 59 Australian hospitals between 1 July 2010 and 30 June 2014. MAIN OUTCOME MEASURE: The relationship between the risk-adjusted mortality of inpatients admitted acutely from EDs (the emergency hospital standardised mortality ratio [eHSMR]: the ratio of the numbers of observed to expected deaths) and NEAT compliance rates for all presenting patients (total NEAT) and admitted patients (admitted NEAT). RESULTS: ED and inpatient data were aggregated for 12.5 million ED episodes of care and 11.6 million inpatient episodes of care. A highly significant (P < 0.001) linear, inverse relationship between eHSMR and each of total and admitted NEAT compliance rates was found; eHSMR declined to a nadir of 73 as total and admitted NEAT compliance rates rose to about 83% and 65% respectively. Sensitivity analyses found no confounding by the inclusion of palliative care and/or short-stay patients. CONCLUSION: As NEAT compliance rates increased, in-hospital mortality of emergency admissions declined, although this direct inverse relationship is lost once total and admitted NEAT compliance rates exceed certain levels. This inverse association between NEAT compliance rates and in-hospital mortality should be considered when formulating targets for access to emergency care.

Report on the 4-h rule and National Emergency Access Target (NEAT) in Australia: time to review.

Objective The aim of the present study was to provide a summary of a systematic review of literature reporting benefits and limitations of implementing National Emergency Access Target (NEAT), a target stipulating that a certain proportion of patients presenting to hospital emergency departments are admitted or discharged within 4h of presentation. Methods A systematic review of published literature using specific search terms, snowballing techniques applied to retrieved references and Google searches was performed. Results are presented as a narrative synthesis given the heterogeneity of included studies. Results Benefits of a time-based target for emergency care are improved timeliness of emergency care and reduced in-hospital mortality for emergency admissions to hospital. Limitations centre on using a process measure (time) alone devoid of any monitoring of patient outcomes, the threshold nature of a time target and the fact that currently NEAT combines the measurement of clinical management of two very different patient cohorts seeking emergency care: less acute patients discharged home and more acute patients admitted to hospital. Conclusions Time-based access targets for emergency presentations are associated with significant improvements in in-hospital mortality for emergency admissions. However, other patient-important outcomes are deserving of attention, choice of targets needs to be validated by empirical evidence of patient benefit and single targets need to be partitioned into separate targets pertaining to admitted and discharged patients. What is known about the topic? Time targets for emergency care originated in the UK. The introduction of NEAT in Australia has been controversial. NEAT directs that a certain proportion of patients will be admitted or discharged from an emergency department (ED) within 4h. Recent dissolution of the Australian National Partnership Agreement (which provided hospitals with financial incentives for achieving NEAT compliance) has prompted a re-examination of the 4-h rule, the evidence underpinning its introduction and its benefits and risks to patients What does this paper add? This paper is executive summary of key findings from a systematic literature review on the benefits and limitations of NEAT (the 4-h rule) commissioned by the Queensland Clinical Senate to inform future policy and targets. What are the implications for practitioners? There is evidence that a time-based target has been associated with a reduction in in-hospital mortality for emergency admissions to Australian hospitals. Concerns remain regarding a time-based target alone being used to drive redesign efforts at improving access to emergency care. A time-based target should be coupled with close monitoring of patient outcomes of emergency care. Target thresholds need to be evidence based and separate targets should be reported for admitted, discharged and all patients presenting to the ED.

Characterization of the structural and protein recognition properties of hybrid PNA-DNA four-way junctions.

The objective of this study is to evaluate the structure and protein recognition properties of hybrid four-way junctions (4WJs) composed of DNA and peptide nucleic acid (PNA) strands. We compare a classic immobile DNA junction, J1, vs. six PNA-DNA junctions, including a number with blunt DNA ends and multiple PNA strands. Circular dichroism (CD) analysis reveals that hybrid 4WJs are composed of helices that possess structures intermediate between A- and B-form DNA, the apparent level of A-form structure correlates with the PNA content. The structure of hybrids that contain one PNA strand is sensitive to Mg(+2). For these constructs, the apparent B-form structure and conformational stability (Tm) increase in high Mg(+2). The blunt-ended junction, b4WJ-PNA3, possesses the highest B-form CD signals and Tm (40.1 °C) values vs. all hybrids and J1. Protein recognition studies are carried out using the recombinant DNA-binding protein, HMGB1b. HMGB1b binds the blunt ended single-PNA hybrids, b4WJ-PNA1 and b4WJ-PNA3, with high affinity. HMGB1b binds the multi-PNA hybrids, 4WJ-PNA1,3 and b4WJ-PNA1,3, but does not form stable protein-nucleic acid complexes. Protein interactions with hybrid 4WJs are influenced by the ratio of A- to B-form helices: hybrids with helices composed of higher levels of B-form structure preferentially associate with HMGB1b.

Strength in unity: the power of redesign to align the hospital team.

OBJECTIVE: The aim of Queen Elizabeth II Jubilee Hospital (QEII) redesign project (QEII United) was to enhance timely access to an inpatient bed and maximise opportunities to value add during the inpatient episode of care. METHODS: A tripartite relationship between the hospital team, system manager and external consultants. The team, QEII United, was formed to 'diagnose, solve and implement' change under the unifying metaphorical banner of a football team. A marketing strategy and communication plan targeted the key 'players' and outlined the 'game plan'. Baseline data were collected, analysed and reported in keeping with key aims. Strategies for systems improvement implementation were attached to key performance indicators (KPIs). RESULTS: Thematic KPIs were developed to embed internal process change to reflect the contributions made towards the National Emergency Access Target (NEAT) at each stage of the patient journey. As such, access block of under 20%, morning discharge rates of 50% before midday, reduced length of stay for selected elective orthopaedic and general medical diagnostic related groupings (DRGs; i.e. relative stay index ≤1) and hospital in the home (HITH) utilisation rates 1.5% of all admissions were all met. Key to sustainability was the transfer of clinical redesign skills to hospital staff and the fostering of emergent ground up leadership. CONCLUSIONS: QEII United's success has been underpinned by the development of themed solution areas developed by the hospital staff themselves. Robust baseline data analysis used in combination with nationally available benchmarking data provided a quantitative starting point for the work. The collaborative elements of the program re-energised the hospital team, who were kept informed by targeted communications, to establish quick wins and build trust and momentum for the more challenging areas.

Sr-fresnoite determined from synchrotron X-ray powder diffraction data.

The fresnoite-type compound Sr2TiO(Si2O7), distrontium oxidotitanium disilicate, has been prepared by high-temperature solid-state synthesis. The results of a Rietveld refinement study, based on high-resolution synchrotron X-ray powder diffraction data, show that the title compound crystallizes in the space group P4bm and adopts the structure of other fresnoite-type mineral samples with general formula A2 TiO(Si2O7) (A = alkaline earth metal cation). The structure consists of titanosilicate layers composed of corner-sharing SiO4 tetra-hedra (forming Si2O7 disilicate units) and TiO5 square-based pyramids. These layers extend parallel to the ab plane and are stacked along the c axis. Layers of distorted SrO6 octa-hedra lie between the titanosilicate layers. The Sr(2+) ion, the SiO4 tetra-hedron and the bridging O atom of the disilicate unit are located on mirror planes whereas the TiO5 square-based pyramid is located on a fourfold rotation axis.

The use of kiosks to improve triage efficiency in the emergency department.

Triage is a system used to prioritise patients as they enter the emergency department (ED) based on their need for urgent care. In recent decades, EDs have becoming increasingly overcrowded, leading to longer pre-triage waiting times for patients. E-triage interventions like kiosks have been proposed as a solution to overcrowding. We conducted a literature review into the effectiveness of kiosks in improving triage efficiency. After rigorously searching five biomedical databases and screening candidate articles in Endnote, we identified nine papers pertaining to the introduction of kiosks in emergency departments. Six articles had positive findings-with E-triage interventions improving some aspect of the triage process-such as reducing pre-triage times. Conversely, only three articles reported negative findings, such as low uptake. Consequently, EDs should consider introducing kiosks to complement the current nurse-led triage process and thereby promote better patient outcomes.

Mortality and readmission differences associated with after-hours hospital admission: A population-based cohort study in Queensland Australia.

Background and Aims: Policy makers and health system managers are seeking evidence on the risks involved for patients associated with after-hours care. This study of approximately 1 million patients who were admitted to the 25 largest public hospitals in Queensland Australia sought to quantify mortality and readmission differences associated with after-hours hospital admission. Methods: Logistic regression was used to assess whether there were any differences in mortality and readmissions based on the time inpatients were admitted to hospital (after-hours versus within hours). Patient and staffing data, including the variation in physician and nursing staff numbers and seniority were included as explicit predictors within patient outcome models. Results: After adjusting for case-mix confounding, statistically significant higher mortality was observed for patients admitted on weekends via the hospital's emergency department compared to within hours. This finding of elevated mortality risk after-hours held true in sensitivity analyses which explored broader definitions of after-hours care: an "Extended" definition comprising a weekend extending into Friday night and early Monday morning; and a "Twilight" definition comprising weekends and weeknights.There were no significant differences in 30-day readmissions for emergency or elective patients admitted after-hours. Increased mortality risks for elective patients was found to be an evening/weekend effect rather than a day-of-week effect. Workforce metrics that played a role in observed outcome differences within hours/after-hours were more a time of day rather than day of week effect, i.e. staffing impacts differ more between day and night than the weekday versus weekend. Conclusion: Patients admitted after-hours have significantly higher mortality than patients admitted within hours. This study confirms an association between mortality differences and the time patients were admitted to hospital, and identifies characteristics of patients and staffing that affect those outcomes.

Thermodynamics of prediction.

A system responding to a stochastic driving signal can be interpreted as computing, by means of its dynamics, an implicit model of the environmental variables. The system's state retains information about past environmental fluctuations, and a fraction of this information is predictive of future ones. The remaining nonpredictive information reflects model complexity that does not improve predictive power, and thus represents the ineffectiveness of the model. We expose the fundamental equivalence between this model inefficiency and thermodynamic inefficiency, measured by dissipation. Our results hold arbitrarily far from thermodynamic equilibrium and are applicable to a wide range of systems, including biomolecular machines. They highlight a profound connection between the effective use of information and efficient thermodynamic operation: any system constructed to keep memory about its environment and to operate with maximal energetic efficiency has to be predictive.

The expression of 'policy' in palliative care: A critical review.

The importance of 'policy' within palliative care has steadily increased over the past 25 years. Whilst this has been welcomed within the palliative care field and seen as a route to greater recognition, we focus here on a more critical perspective that challenge the effectiveness of a 'policy turn' in palliative care. Applying Bacchi's "What's the Problem Represented to Be?" (WPR) framework to data from a systematic search, we address the research question, "in what ways has 'policy' been articulated in palliative care literature?". The paper describes the construction of 'the problem' context and reflects critically on the robustness and pragmatic utility of such representations. In particular, we identify five elements as prominent and problematic: (1) a lack of empirical evidence that connects policy to practice; (2) the dominance of 'Global North' approaches; (3) the use of a policy narrative based on 'catastrophe' in justifying the need for palliative care; (4) the use of idealistic and aspirational 'calls to action'; and (5) a disengaged and antagonistic orientation to existing health systems. We conclude by suggesting that the efficacy of palliative care policy could be enhanced via greater emphases on 'Global South' perspectives, 'assets-based' approaches and attention to pragmatic implementation.