[Personnel assessment in psychiatry and psychotherapy : Results of a feasibility study on the platform model]. / Personalbemessung in der Psychiatrie und Psychotherapie : Ergebnisse einer Machbarkeitsstudie zum Plattform-Modell.

The topic of personnel assessment in psychiatry, psychotherapy and psychosomatics is currently of great importance in terms of health policy. Sufficient empirical evidence for the development of a comprehensive system for staffing is not yet available. The platform model developed by the psychiatric psychosomatic societies and associations pursues a combined empirical normative approach for a future-oriented assessment instrument for the various professional groups. The concept presented has been proven in the health policy discussion as a sensible system of comprehensive personnel assessment; however, an empirically sound control is still lacking as to whether this system can be used practically for the task described and thus can withstand the task of a resilient and future-proof measurement instrument for the necessary personnel. The task of the present study was to examine the extent to which the assumptions of the platform model are confirmed, whether methodological indications can be identified and whether there are limitations of the study that can be used in the validation and foundation of the model. The study confirmed the feasibility of the model and refers to a number of methodological findings and limitations that can be used for the further development of the model. The developed model allows the necessary staffing to be derived and justified, regardless of diagnoses and settings. It is future-oriented and dynamic.

[Influence of staffing levels on conflicts in inpatient psychiatric care]. / Einfluss der Personalbesetzung auf Konflikte auf psychiatrischen Stationen.

Acute psychiatric wards are an important element in the mental healthcare of people at risk for acute harm to others or self-harm. Unfortunately, aggression, violence (conflict) and the use of coercion (containment) are still part of psychiatric care. The decisive factor for the correct handling of these situations is the quantity as well as the quality of the employees. Therefore, the present study dealt with the care situation on acute psychiatric wards. The hypothesis is that both the number of beds on the acute psychiatric ward and the number of caregivers have an impact on the occurrence of conflict and containment. For this purpose, data were collected in 6 clinics on a total of 12 acute psychiatric wards. The Patient Staff Conflict Checklist - Shift Report (PCC-SR) was used as the data entry tool. A total of 2026 shifts (early, late and night shifts) were recorded and evaluated. The staffing of the wards with nursing personnel varied considerably. The results show that both the size of the ward and also the number of caregivers on acute psychiatric wards have a significant impact on the occurrence of conflicts. The results also show that the incidence of conflicting behavior of patients differs both in terms of the wards of the hospitals involved and in the type of service considered. In addition, it can be seen that the extent of closure of an acute ward (i. e. the closed ward or entrance door) and the size of a ward (i. e. the number of beds) have a negative impact on the incidence of inpatient acute psychiatric contexts. The occurrence of conflict behavior can lead to alien or self-endangerment and to a variety of de-escalating and containment measures. This requires appropriate human resources.

A systems approach identifies time-dependent associations of multimorbidities with pancreatic cancer risk.

BACKGROUND: Pancreatic ductal adenocarcinoma (PDAC) is usually diagnosed in late adulthood; therefore, many patients suffer or have suffered from other diseases. Identifying disease patterns associated with PDAC risk may enable a better characterization of high-risk patients. METHODS: Multimorbidity patterns (MPs) were assessed from 17 self-reported conditions using hierarchical clustering, principal component, and factor analyses in 1705 PDAC cases and 1084 controls from a European population. Their association with PDAC was evaluated using adjusted logistic regression models. Time since diagnosis of morbidities to PDAC diagnosis/recruitment was stratified into recent (<3 years) and long term (≥3 years). The MPs and PDAC genetic networks were explored with DisGeNET bioinformatics-tool which focuses on gene-diseases associations available in curated databases. RESULTS: Three MPs were observed: gastric (heartburn, acid regurgitation, Helicobacter pylori infection, and ulcer), metabolic syndrome (obesity, type-2 diabetes, hypercholesterolemia, and hypertension), and atopic (nasal allergies, skin allergies, and asthma). Strong associations with PDAC were observed for ≥2 recently diagnosed gastric conditions [odds ratio (OR), 6.13; 95% confidence interval CI 3.01-12.5)] and for ≥3 recently diagnosed metabolic syndrome conditions (OR, 1.61; 95% CI 1.11-2.35). Atopic conditions were negatively associated with PDAC (high adherence score OR for tertile III, 0.45; 95% CI, 0.36-0.55). Combining type-2 diabetes with gastric MP resulted in higher PDAC risk for recent (OR, 7.89; 95% CI 3.9-16.1) and long-term diagnosed conditions (OR, 1.86; 95% CI 1.29-2.67). A common genetic basis between MPs and PDAC was observed in the bioinformatics analysis. CONCLUSIONS: Specific multimorbidities aggregate and associate with PDAC in a time-dependent manner. A better characterization of a high-risk population for PDAC may help in the early diagnosis of this cancer. The common genetic basis between MP and PDAC points to a mechanistic link between these conditions.

['NischE - Nicht von schlechten Eltern' - Evaluation of a Multidisciplinary Teamwork Approach to Support Children in Families with Mentally Ill Parents]. / "NischE ­ Nicht von schlechten Eltern" ­ Evaluation eines Kooperationsprojektes zur Unterstützung von Kindern in Familien mit psychisch- oder suchtbelasteten Eltern.

Objective: Evaluation of a project offering low-threshold anonymous counseling services jointly by mental health services and child and youth services to support children in families with mentally ill parents Methods: Evaluating performance data and completed questionnaires returned by parents included in the project. Results: Between 2011-2014, 150 families received up to 10 sessions of family-oriented counseling. The survey results indicate a high level of satisfaction with the services of the cooperation project. The vast majority of respondents said that they would recommend this service to others or would themselves take advantage of the services again. Conclusion: A collaboration of service providers from psychiatry and child and youth welfare department resulting in continuous availability of counseling with a common family medical perspective represents a forward-looking model for families with a mentally ill parent.

[Admission and discharge decisions in psychiatric hospitals : The 7-day cycle: analysis based on the VIPP database]. / Aufnahme- und Entlassentscheidungen in der Psychiatrie : Der 7-Tage-Zyklus: Analyse auf Grundlage der VIPP-Datenbank.

BACKGROUND: The legislation requires all scientific societies in the field of inpatient psychiatric and psychosomatic healthcare to survey and assess the effects and financial incentives of the new flat rate day-based remuneration system in psychiatric and psychosomatic facilities (PEPP system). As day-based remuneration systems may be an incentive to extend treatment, it is necessary to measure and analyze the future development of the number of cases and the duration of treatment. OBJECTIVES: This article surveys admission and discharge decisions of psychiatric and psychosomatic facilities. The distribution of admissions and discharges throughout the days of the week were analyzed to search for evidence of a systematic extension of treatment over the weekend. MATERIAL AND METHODS: The analysis is based on data from the Versorgungsrelevante Indikatoren in der Psychiatrie und Psychosomatik (VIPP, treatment-relevant indicators in psychiatry and psychosomatics) project database, which contains routine data from psychiatric and psychosomatic facilities. On this basis the distributions of admissions and discharges throughout the days of the week were analyzed on aggregate and diagnosis-specific levels. RESULTS: Patients were mostly admitted to hospitals within the first 3 weekdays. The discharge mostly took place on Fridays and not as a financial incentive on Mondays. Regarding the patient length of stay a 7-day cycle can be observed, which may indicate the importance of medical and organizational factors in discharge decisions. CONCLUSION: The results do not show evidence for a systematic extension of treatment over the weekend. Over the next years it will be important to observe the development of the duration of treatment and the number of cases to assess the influence of the economic incentives of the PEPP system on the utilization of psychiatric and psychosomatic healthcare.

[Guideline-conform psychiatric psychotherapeutic treatment for patients with schizophrenia : A normative evaluation of necessary personnel requirements]. / Leitlinienkonforme psychiatrisch-psychotherapeutische Behandlung für Patienten mit Schizophrenie : Eine normative Berechnung des benötigten Personalbedarfs.

BACKGROUND: Although national treatment guidelines and current publications of the German Federal Joint Committee (Gemeinsamer Bundesausschuss) recommend cognitive behavior therapy for all patients with schizophrenia, the implementation of these recommendations in current inpatient and outpatient treatment is only rudimentary. OBJECTIVES: The aim of this study was to systematically search randomized controlled studies (RCTs), meta-analyses and the guidelines of the German Association for Psychiatry and Psychotherapy, Psychosomatics and Neurology (DGPPN) and the British National Institute for Health and Clinical Excellence (NICE) in order to assess the number of personnel necessary for psychiatric and therapeutic inpatient treatment in line with present guidelines. Moreover, the number of staff required was compared with the personnel resources designated by the German psychiatry personnel regulations (Psych-PV). METHODS: The German and NICE guidelines, RCTs and meta-analyses were analyzed and an adequate weekly treatment plan for an inpatient unit was developed. Moreover, the number of personnel necessary to realize the treatment plan was calculated. RESULTS: In order to realize adequate inpatient treatment approximately 107 min extra for medical psychotherapeutic personnel per patient and week (of which 72 min for psychotherapy) and another 60 min for nursing staff per patient and week are required in addition to the current Psych-PV regulations. Thus, implementation in an open ward with 20 inpatients would require 3.62 positions for physicians, 0.7 positions in psychology and 12.85 positions for nursing staff (including management positions and night shifts). DISCUSSION: These evidence-based recommendations for precise specifications of inpatient treatment should lead to improved inpatient treatment in line with present guidelines. Moreover, outpatients and day patients could be included in this treatment model. The results should be considered in the construction of the future prospective payment system for inpatient psychiatric healthcare in Germany.

[Personnel resources for psychiatric institutions. Needs assessment exemplified by the nursing profession in Germany]. / Personalressourcen für psychiatrische Einrichtungen. Bedarfsermittlung am Beispiel der Pflegefachberufe in Deutschland.

BACKGROUND: The Psychiatry Personnel Act (Psych-PV) as the basis for personnel assessment in psychiatry becomes invalid on 1 January 2019. Because the Psych-PV previously coupled the personnel quota with the intensity of services provided, current efforts are required to develop an instrument to adapt the extent of financed personnel resources to the manifold new legal requirements and advances in treatment in terms of guideline-based care. OBJECTIVES: Based on a literature search and the additional use of a databank of routine data, an example of a calculation was made to estimate the additional personnel resources which would be necessary for psychoeducation and fulfill the legal requirements from 2019 onwards. An investigation was also carried out to identify which psychiatry guidelines contain time values which can be used for calculation of personnel requirements. MATERIAL AND METHODS: A three-step approach was used: (1) screening of the current guidelines and determination of the average intervention times with respect to nursing staff, (2) exemplary comparison between the times for guideline-based psychoeducation for patients in the diagnosis groups F32-F33 with the times allocated by the Psych-PV and (3) determination of times between education measures prescribed by law and necessary training for which no (sufficient) time contingents are provided in the Psych-PV. RESULTS: Times for individual activities (e.g. psychoeducation), which are also appropriate for nursing personnel can be found in the primary literature on guidelines; however, these include only a small proportion of tasks undertaken by nursing personnel. For psychoeducation it could be shown that additional time contingents would be necessary in the Psych-PV. Furthermore, there are new mandatory but disregarded schooling measures and instructions for nursing staff, the duration of which can be conservatively calculated as 21 min per case per hospital stay. CONCLUSION: The empirical approach presented in this study shows the possibility to identify time resources needed for nursing personnel to provide guideline-based interventions; however, these represent only partial aspects of nursing activities. Further research and analytical methods are needed to calculate the currently needed personnel resources for all nursing activities and other professional groups involved in treatment in inpatient psychiatry.

[Where is convergence of psychiatry budgets leading to? A comparison of staffing regulations and actual personnel resources]. / Wohin führt die Konvergenz der Psychiatriebudgets? Ein Vergleich von Psych-PV-Vorgaben und tatsächlichen Personalressourcen.

BACKGROUND: Staffing regulations have determined the number of qualified staff required for sufficient, appropriate and economical inpatient mental health care in Germany since 1991. This minimum level of structural quality will probably be abolished in the context of the convergence of hospital budgets starting in 2019. AIMS AND OBJECTIVES: The aim of this study was to analyze the current fulfilment of staffing regulations in terms of time per patient in a large nationwide sample. MATERIAL AND METHODS: The required minutes of staff time as defined by staffing regulations were calculated for each patient using the treatment classifications provided by a large nationwide database. The actual use of staff time was calculated on the basis of average costs published by the German Institute for Hospital Reimbursement. Both figures were compared to calculate the fulfilment of staffing regulations. RESULTS: The study included approximately 95,000 inpatient episodes from 46 psychiatric hospitals and departments with a total length of stay of almost 2.5 million days. On average, the weekly use of staff resources per patient was 190 min (10 %) below the requirements of the staffing regulations. The largest gap in absolute terms was found in nursing staff where the weekly time per patient was 189 min (14 %) below the requirements of the staffing regulations. CONCLUSION: The convergence of psychiatric hospital budgets starts in 2019 below a level of funding required to fulfil staffing regulations. This would perpetuate inadequately funded structures and should initially be opposed with a demand for complete fulfilment of staffing regulations. Thereafter, a normative consent should be reached to define the resources required for current inpatient mental health care.

[Calculating personnel allocation at 100 % implementation of the Psychiatry Personnel Act. Can it be done on the basis of existing routine data?]. / Berechnung der Personalbemessung bei einer Umsetzung von 100 % Psych-PV. Kann diese auf der Grundlage vorliegender Routinedaten erfolgen?

From 1 January 2019, after completion of the convergence phase, the Psychiatry Personnel Act (Psych-PV) will no longer be the basis of budget negotiations of psychiatric hospitals and departments with the health insurance funds in Germany. Instead, the new compounding remuneration system for psychiatric and psychosomatic inpatient institutions (PEPP) will provide a new framework. The Federal Joint Committee (Gemeinsamer Bundesausschuss, G-BA) has been given the task of elaborating a directive on the basis of the expiring Psych-PV in order to redefine standards for personnel allocation within this new framework. This task presupposes the existence of reliable data in the psychiatric hospitals and departments for categorizing patients following the Psych-PV. It presupposes further that these data allow an exact calculation of the personnel to which the clinics are entitled. This article shows that the so-called §-21 dataset from the database of the VIPP project (indicators of patient care in psychiatric and psychosomatic facilities) allows this calculation. The VIPP dataset was used as a basis to calculate the personnel requirements. Exemplary analyses illustrate that the information available regarding the Psych-PV can be transformed in minutes per day, minutes per month and full time positions. Therefore, this information would also be available to the Institute for the Hospital Remuneration System (InEK).

[Management documentation of therapeutic units on inpatient treatment for people with dementia--does it allow conclusion to be drawn them about inpatient services? An exploratory analysis]. / Leistungsdokumentation durch Therapieeinheiten bei stationär behandelten Menschen mit dementieller Erkrankung--erlauben sie Rückschlüsse auf das Leistungsgeschehen? Eine explorative Analyse.

BACKGROUND: Against the background of the continuously growing incidence rates of gerontopsychiatric disorders, their economic dimen-sions, and the effects on persons affected as well as their social environments, the present study focuses on an analysis of the services provided in acute psychiatric care settings for patients with dementia. RESULTS are based on secondary data. AIM OF THE STUDY: We aim to compare therapeutic service units of different clusters of occupational groups (physicians/psychologists, nurses/special therapists) for the ICD-10 diagnostic groups F00-F03 and G30 in the years 2010 (starting with July) and 2011. Main research question is how many patients are mappable with 'therapeutic units' (Therapieeinheiten, TE) of the operation and procedures catalogue (OPS). METHODS: The present study is based on an analysis of the §21 KHEntgG data record of 35 acute psychiatric facilities. Data collection took place within the project "Versorgungsindikatoren für die Psychiatrie und Psychosomatik (VIPP)", "Supply indicators for psychiatric and psychosomatic settings". The data record implies statewide data of specialised hospitals, university hospitals and departments of psychiatry of the Federal Republic of Germany. RESULTS: In total, 5 111 cases were included in the analysis. Nurses and special therapists carried out significantly more therapeutic units in the main diagnoses groups (F01, F03 and G30) and the care groups (regular vs. intensive) than physicians and psychologists (p<0.05). It was not possible to map all patients with the use of therapeutic units (G30 78.8%, F01 83.4%, F03 81.2%). Mapping of patients was significantly higher in the intensive care compared to regular care in both occupational clusters (p<0.05). CONCLUSIONS: We demonstrated that the "therapeutic units" of the OPS codes are now used in the routine data (§21 KHEntgG), and that they are able to portray relevant aspects of non-medication therapeutic service. The present study provides a preliminary/exploratory overview on the services provided, mapped by therapeutic units. Future research should focus on the overlap between the category "therapeutic" units and the services actually provided.

[The new payment system in psychiatry - do elderly people belong to the losers? An analysis on the basis of the VIPP1 data base]. / Das neue Entgeltsystem in der Psychiatrie - gehören ältere Patienten zu den Verlierern? Eine Analyse auf der Grundlage der VIPP-Datenbank.

The development of the lump-sum reimbursement System in psychiatry and psychosomatics (PEPP) (Klimke et al., 2014) is being negatively considered - also in gerontopsychiatry.Thus it is reasonable to make a timely analysis of the effects of PEPP on health-care structures. For this two analyses have been carried out. On the one hand the day mix index of elderly patients (> 64 years) was compared with that of younger ones (> 17 years, < 65 years). On the other hand younger and older were included in the analysis with regard to the available treatment minutes in exact daily classifications according to the PsychPV. It is seen that evaluation of the individual day was markedly higher for gerontopsychiatric patients not only in inpatient (difference > 0.1) but also in outpatient (difference > 0.07) setting. The exact daily classifications according to PsychPV, however, were markedly poorer for the elderly patients. Thus, on the basis of routine data of VIPP projects, a clear change can be seen in favour of the elderly patient under PEPP conditions as compared to financing according to PsychPV. However, concern remains that the ageing population and modernisation of therapy are not being sufficiently taken into account. The new reimbursement system merely regulates the distribution of available resources; if these resources are too low nothing will change by the PEPP-System.

[Indicators of patient care in Psychiatric and Psychosomatic Facilities (VIPP project)--a database project]. / Versorgungsindikatoren in der Psychiatrie und Psychosomatik (VIPP)--Ein Datenbank-Projekt.

INTRODUCTION: In Germany a new and unique remuneration system for psychiatric and psychosomatic stationary treatments (PEPP system) was introduced in 2013 on an optional basis. From 2015 it will be mandatory for psychiatric and psychosomatic facilities. The introduction of the PEPP system brings up different questions regarding the possible incentives of the new remuneration system and its effects on the supply of psychiatric and psychosomatic treatments. To conduct these necessary analyses a reliable database is needed. MATERIAL AND METHODS: The goal of the project "Indicators of patient care in Psychiatric and Psychosomatic Facilities" (VIPP project) is to gather a representative database which reflects the situation of day-to-day patient care performed by German psychiatric and psychosomatic facilities. The §â€Š21 data set represents the basis of this database which will be complemented by other data sources (i. e., financial statements and other economic data). A number of more than 100 ,000 cases per year has already been exceeded. These case data were provided by a wide range of psychiatric hospitals, departments and universities that participate in this project. The dataset is anonymised and by pooling the data it is not possible to identify the cases of a specific clinic. Participants receive a web-based access and have the possibility to analyse the data independently. RESULTS: Using the examples of coding accuracy and rehospitalisation rates the variety as well as the enormous potential of this database can be demonstrated. DISCUSSION: On the base of the VIPP database valid patient care indicators can be identified and cross-sectional analyses can be conducted. From such results key data on health economic strategies can be derived and the incentives, strengths and limitations of this constantly changing system can be identified.

Telemedicine: an important aid to perform high-quality endoscopic retrograde cholangiopancreatography in low-volume centers.

BACKGROUND AND STUDY AIMS: The aim of this study was to investigate whether telemedicine can help to ensure high-quality endoscopic retrograde cholangiopancreatography (ERCP) in patients living in rural areas. The study was conducted by investigators from two centers: the Karolinska University Hospital, a high-volume center which provided the teleguided support, and the Visby District Hospital, a low-volume center. PATIENTS AND METHODS: From September 2010 to August 2011, 26 ERCP procedures performed at a district hospital were teleguided by an experienced endoscopist at the Karolinska University Hospital. To ensure patient data protection, all communication went through a network (Sjunet) that was separate from the Internet and open only to accredited users. The indications for ERCP were common bile duct stones (n = 12), malignant strictures (n = 12), and benign biliary strictures (n = 2). In 15 cases, this was the patient's first ERCP procedure. RESULTS: The common bile duct was successfully cannulated in all 26 teleguided procedures. The local endoscopist scored the teleguided support as crucial for the successful outcome in 8 /26 cases, as an important factor in 8, and as being of less importance in the remaining 10. In the eight cases where the teleguided support was judged to be crucial, six subsequent percutaneous transhepatic cholangiography procedures and two repeat ERCPs were avoided. The overall cannulation rate at the district hospital improved from 85 % to 99 % after teleguided support was introduced. No procedure-related complications occurred. CONCLUSION: Distant guidance of advanced ERCP procedures in a low-volume center, through teleguided support from a high-volume center, has the potential to improve the quality of care, as reflected in high cannulation rates and the ability to complete the scheduled interventions.

[The experience of being admitted to a psychiatric clinic: part 1: development of a questionnaire (QAE-P)]. / Das Erleben der Aufnahme in eine psychiatrische Klinik : Teil I: Entwicklung eines Fragebogens (FEA-P).

BACKGROUND: The aim of the present study was to develop a questionnaire to assess the perception and evaluation of admission to a psychiatric hospital from a patient's perspective (QAE-P). MATERIAL AND METHODS: Based on existing literature and a preparatory pilot study, a questionnaire consisting of 126 items was developed, and 708 inpatients based in 6 psychiatry and psychotherapy clinics were asked to answer the items. The resulting data were split into two data sets. In the first subset, exploratory factor analysis was used to help determine the number of scales and provide the basis for item reduction. The resulting questionnaire was validated by means of confirmatory factor analyses (CFA) in the second data subset. RESULTS: The resulting questionnaire comprises 33 items in 7 scales, which assess: (1) helpful, positive relations with staff members; (2) offering of medical explanations to patients and their involvement in treatment planning; (3) evaluation of rooms and clinical environment; (4) dissatisfaction with doctors and staff members; (5) evaluation of handling of ward rules by staff; (6) perception of ward atmosphere; and (7) negative perception of other inpatients. The plausibility of this factorial structure was supported by the results of the CFA. CONCLUSIONS: The QAE-P is a short and feasible questionnaire that meets the criteria of classic test theory and assesses different dimensions of the patient's experience of admission to a psychiatric hospital.

[The experience of being admitted to a psychiatric clinic: part 2: comparative analyses of patient and hospital characteristics]. / Das Erleben der Aufnahme in eine psychiatrische Klinik : Teil II: Vergleichende Analysen von Patienten- und Klinikmerkmalen.

BACKGROUND: The purpose of this study was to investigate associations of patient's scores in the newly constructed questionnaire on patients' psychiatric admission experiences (QAE-P) and individual, institutional, and situational factors. PATIENTS AND METHODS: Data of 708 patients and 6 participating hospitals were analyzed. Patient characteristics between clinics were compared and univariate as well as multivariate analyses were applied to examine associations of QAE-P total score and individual as well as institutional variables (t tests, univariate and multivariate analyses of variance, correlation analyses, and effect sizes of significant associations). RESULTS: There was little variance of patient characteristics between hospitals. Multiple univariate associations with small to medium effect sizes were found between total QAE-P scores and demographic and clinical variables of the patients, institutional variables, and (non-independent) situational views of the patients. After multivariate analyses were applied, these associations remained significant for gender, age, diagnosis, the personal decision to be admitted, and for previous planning of admission with the outpatient doctor. The hospital variables shown to be associated with total QAE-P scores were open versus closed ward, disorder-specific organization of the ward, and the number of other patients being treated under the German Mental Health Act. CONCLUSION: Principally the QAE-P seems to be a suitable instrument of quality management. A number of factors were identified that show associations with the subjective evaluation of admission as reported by the patients. Some of these variables are within the control of the clinical management.

Further investigation of lead exposure as a potential threatening process for a scavenging marsupial species.

There is a growing recognition of the harmful effects of lead exposure on avian and mammalian scavengers. This can lead to both lethal and non-lethal effects which may negatively impact wildlife populations. Our objective was to assess medium-term lead exposure in wild Tasmanian devils (Sarcophilus harrisii). Frozen liver samples (n = 41), opportunistically collected in 2017-2022, were analysed using inductively coupled plasma mass spectrometry (ICP-MS) to determine liver lead concentrations. These results were then used to calculate the proportion of animals with elevated lead levels (>5 mg/kg dry weight) and examine the role of explanatory variables that may have influenced the results. The majority of samples analysed were from the south-east corner of Tasmania, within 50 km of Hobart. No Tasmanian devil samples were found to have elevated lead levels. The median liver lead concentration was 0.17 mg/kg (range 0.05-1.32 mg/kg). Female devils were found to have significantly higher liver lead concentrations than males (P = 0.013), which was likely related to lactation, but other variables (age, location, body mass) were not significant. These results suggest that wild Tasmanian devil populations currently show minimal medium-term evidence of exposure to lead pollution, although samples were concentrated in peri-urban areas. The results provide a baseline level which can be used to assess the impact of any future changes in lead use in Tasmania. Furthermore, these data can be used as a comparison for lead exposure studies in other mammalian scavengers, including other carnivorous marsupial species.

Granular materials: packing grains by thermal cycling.

A long-standing problem in managing the behaviour of a collection of solid grains concerns the nature of the grain packing, a property that is typically controlled by how the grains are poured or shaken. Here we show that a systematic and controllable increase in granular packing can be induced by simply raising and then lowering the temperature, without the input of mechanical energy. This thermal processing may have important practical implications for the handling and storage of granular materials.

Prognostic impact of inter-metastatic heterogeneity of viable tumour cells in colorectal liver metastases.

BACKGROUND: Heterogenous response to neoadjuvant chemotherapy in patients with multiple colorectal liver metastases (CRLM) has been associated with an acquired resistance to systemic therapy. This study evaluated the occurrence of a heterogenous inter-metastatic tumour response with regards to the proportion of viable tumour cells, and its prognostic impact. METHODS: A retrospective cohort study was conducted, including all patients with CRLM surgically treated at Karolinska University Hospital, Stockholm, Sweden, from 2013 to 2018. Factors associated with the proportion of viable tumour cells and inter-metastatic heterogeneity were analysed with regression and survival analyses. RESULTS: Out of 640 surgically treated patients, 405 patients (1357 CRLM), received neoadjuvant chemotherapy. Multiple CRLM were present in 314 patients (78%), out of whom 72 patients (23%) presented with a heterogenous tumour response. The median overall survival (OS) for patients with a heterogenous inter-metastatic tumour response was 36 months, compared to 57 months for patients with a homogenous inter-metastatic tumour response (p < .001). Poor OS in patients receiving preoperative chemotherapy was significantly associated with a heterogenous inter-metastatic tumour response (hazard ratio (HR) 1.68 (1.02-2.78)), right-sided primary tumour (HR 2.01 (1.29-3.43)) and CRLM diameter >5 cm (HR 1.83 (1.06-3.17)). CONCLUSION: Outcome in patients with a heterogenous inter-metastatic tumour response, illustrated by the proportion of viable tumour cells, is inferior to that of patients with a homogenous response. These results suggest that heterogeneity in treatment response is an important marker of aggressive disease and could be of clinical value for decisions on post-operative therapy.

Gallbladder disease and pancreatic cancer risk: a multicentric case-control European study.

BACKGROUND AND AIMS: The overall evidence on the association between gallbladder conditions (GBC: gallstones and cholecystectomy) and pancreatic cancer (PC) is inconsistent. To our knowledge, no previous investigations considered the role of tumour characteristics on this association. Thus, we aimed to assess the association between self-reported GBC and PC risk, by focussing on timing to PC diagnosis and tumour features (stage, location, and resection). METHODS: Data derived from a European case-control study conducted between 2009 and 2014 including 1431 PC cases and 1090 controls. We used unconditional logistic regression models to estimate odds ratios (ORs) and corresponding 95% confidence intervals (CIs) adjusted for recognized confounders. RESULTS: Overall, 298 (20.8%) cases and 127 (11.6%) controls reported to have had GBC, corresponding to an OR of 1.70 (95% CI 1.33-2.16). The ORs were 4.84 (95% CI 2.96-7.89) for GBC diagnosed <3 years before PC and 1.06 (95% CI 0.79-1.41) for ≥3 years. The risk was slightly higher for stage I/II (OR = 1.71, 95% CI 1.15-2.55) vs. stage III/IV tumours (OR = 1.23, 95% CI 0.87-1.76); for tumours sited in the head of the pancreas (OR = 1.59, 95% CI 1.13-2.24) vs. tumours located at the body/tail (OR = 1.02, 95% CI 0.62-1.68); and for tumours surgically resected (OR = 1.69, 95% CI 1.14-2.51) vs. non-resected tumours (OR = 1.25, 95% CI 0.88-1.78). The corresponding ORs for GBC diagnosed ≥3 years prior PC were close to unity. CONCLUSION: Our study supports the association between GBC and PC. Given the time-risk pattern observed, however, this relationship may be non-causal and, partly or largely, due to diagnostic attention and/or reverse causation.

Toxic time bombs: Frequent detection of anticoagulant rodenticides in urban reptiles at multiple trophic levels.

Anticoagulant rodenticides (ARs) are regularly used around the world to control pest mammals. Second-generation anticoagulant rodenticides (SGARs) are highly persistent in biological tissue and have a high potential for bioaccumulation and biomagnification. Consequently, exposure and poisoning of non-target organisms has been frequently documented, especially in countries with unregulated AR sales and usage. Most of this research has focussed on rodent-predators, usually raptors and predatory mammals, although exposure has also been documented in invertebrates and insectivorous fauna. Few studies have explored non-target exposure in reptiles, despite species sharing similar trophic positions and dietary preferences to other exposed fauna. We tested three abundant urban reptile species in Perth, Western Australia that differ in diet and trophic tiers for multiple AR exposure, the dugite Pseudonaja affinis (rodent-predator), the bobtail Tiliqua rugosa (omnivore) and the tiger snake Notechis scutatus occidentalis (frog-predator). We found frequent exposure in all three species (91% in dugites, 60% in bobtails and 45% in tiger snakes). Mean combined liver concentrations of ARs of exposed individuals were 0.178 mg/kg in dugites, 0.040 mg/kg in bobtails and 0.009 mg/kg in tiger snakes. High exposure frequency and liver concentration was expected for the dugite. Exposure in the other species is more surprising and implies widespread AR contamination of the food web. We discuss the likelihood of global AR exposure of urban reptiles, highlight the potential for reptiles to be important vectors of ARs in the food web and highlight implications for humans consuming wild reptiles.