Evaluating palliative care case conferences in primary care for patients with advanced non-malignant chronic conditions: a cluster-randomised controlled trial (KOPAL).

BACKGROUND: Patients with congestive heart failure (CHF), chronic obstructive pulmonary disease (COPD) and dementia are underrepresented in specialist palliative home care (SPHC). However, the complexity of their conditions requires collaboration between general practitioners (GPs) and SPHC teams and timely integration into SPHC to effectively meet their needs. OBJECTIVE: To facilitate joint palliative care planning and the timely transfer of patients with advanced chronic non-malignant conditions to SPHC. METHODS: A two-arm, unblinded, cluster-randomised controlled trial. 49 GP practices in northern Germany were randomised using web-based block randomisation. We included patients with advanced CHF, COPD and/or dementia. The KOPAL intervention consisted of a SPHC nurse-patient consultation followed by an interprofessional telephone case conference between SPHC team and GP. The primary outcome was the number of hospital admissions 48 weeks after baseline. Secondary analyses examined the effects on health-related quality of life and self-rated health status, as measured by the EuroQol 5D scale. RESULTS: A total of 172 patients were included in the analyses. 80.4% of GP practices had worked with SHPC before, most of them exclusively for cancer patients. At baseline, patients reported a mean EQ-VAS of 48.4, a mean quality of life index (EQ-5D-5L) of 0.63 and an average of 0.80 hospital admissions in the previous year. The intervention did not significantly reduce hospital admissions (incidence rate ratio = 0.79, 95%CI: [0.49, 1.26], P = 0.31) or the number of days spent in hospital (incidence rate ratio = 0.65, 95%CI: [0.28, 1.49], P = 0.29). There was also no significant effect on quality of life (∆ = -0.02, 95%CI: [-0.09, 0.05], P = 0.53) or self-rated health (∆ = -2.48, 95%CI: [-9.95, 4.99], P = 0.51). CONCLUSIONS: The study did not show the hypothesised effect on hospitalisations and health-related quality of life. Future research should focus on refining this approach, with particular emphasis on optimising the timing of case conferences and implementing discussed changes to treatment plans, to improve collaboration between GPs and SPHC teams.

["Creativity and a Mindset Shift were Essential." Impact of the COVID-19 Pandemic on Specialized Palliative Home: A Nationwide Online Survey]. / "Es waren Kreativität und Umdenken erforderlich." Auswirkungen der COVID-19 Pandemie auf die spezialisierte ambulante Palliativversorgung (SAPV). Eine bundesweite Onlinebefragung.

Objectives The aim of this study was to explore the impact of the COVID-19 pandemic and the efforts taken to contain it on specialized palliative homecare (SPHC) practice from the perspective of SPHC team leaders.Methods In this cross-sectional study, an online questionnaire with quantitative and qualitative questions was developed and used, focusing on the experience of SAPV in the first and second wave of the COVID-19 pandemic in Germany. In a structured recruitment process, all German SPHC teams (n=357) were invited to participate. Results From 10/10/2020 to 07/01/2021, 154 SPHC teams participated (response rate 43%). They described clear effects of the COVID-19 pandemic on their activities. Despite pandemic-related problems with staff availability (78.5%), patient care was ensured without major problems. The number of patients to be cared for remained stable for most teams, was increasing for some, and decreasing only for a few. A central factor was the switch from direct contact with patients and their relatives to telephone contact. Additional complicating factors were the general avoidance of contacts, compliance with hygiene regulations for necessary personal contacts, and pandemic-related uncertainties and fears, both among the team itself and among relatives and patients. The procurement of protective equipment was a challenge during the first wave. Problems in collaboration with network partners (e. g., nursing homes and volunteer hospice services) had decreased over the course of the pandemic, but were greater than before in all areas. Many measures to cope with the pandemic challenges were implemented, others were assessed as useful but not implemented, and others as not useful or feasible. Conclusions SPHC teams report that despite the need to adapt many processes to the pandemic situation, they have managed to maintain patient care, although under more difficult conditions.

Impact of thermal stress on evolutionary trajectories of pathogen resistance in three-spined stickleback (Gasterosteus aculeatus).

BACKGROUND: Pathogens are a major regulatory force for host populations, especially under stressful conditions. Elevated temperatures may enhance the development of pathogens, increase the number of transmission stages, and can negatively influence host susceptibility depending on host thermal tolerance. As a net result, this can lead to a higher prevalence of epidemics during summer months. These conditions also apply to marine ecosystems, where possible ecological impacts and the population-specific potential for evolutionary responses to changing environments and increasing disease prevalence are, however, less known. Therefore, we investigated the influence of thermal stress on the evolutionary trajectories of disease resistance in three marine populations of three-spined sticklebacks Gasterosteus aculeatus by combining the effects of elevated temperature and infection with a bacterial strain of Vibrio sp. using a common garden experiment. RESULTS: We found that thermal stress had an impact on fish weight and especially on survival after infection after only short periods of thermal acclimation. Environmental stress reduced genetic differentiation (QST) between populations by releasing cryptic within-population variation. While life history traits displayed positive genetic correlations across environments with relatively weak genotype by environment interactions (GxE), environmental stress led to negative genetic correlations across environments in pathogen resistance. This reversal of genetic effects governing resistance is probably attributable to changing environment-dependent virulence mechanisms of the pathogen interacting differently with host genotypes, i.e. GPathogenxGHostxE or (GPathogenxE)x(GHostxE) interactions, rather than to pure host genetic effects, i.e. GHostxE interactions. CONCLUSION: To cope with climatic changes and the associated increase in pathogen virulence, host species require wide thermal tolerances and pathogen-resistant genotypes. The higher resistance we found for some families at elevated temperatures showed that there is evolutionary potential for resistance to Vibrio sp. in both thermal environments. The negative genetic correlation of pathogen resistance between thermal environments, on the other hand, indicates that adaptation to current conditions can be a weak predictor for performance in changing environments. The observed feedback on selective gradients exerted on life history traits may exacerbate this effect, as it can also modify the response to selection for other vital components of fitness.

Implementation of quality indicators for palliative care for patients with incurable cancer at palliative care units in Germany (Quincie): a study protocol for a mixed-methods study.

INTRODUCTION: Guidelines are important tools for supporting quality management in the care of patients with cancer. However, in clinical practice barriers exist to their implementation. Consequently, Quincie aims at: (1) gaining a comprehensive picture of the implementation of quality indicators from the national guideline on palliative care for patients with incurable cancer in palliative care units and (2) describing the factors that facilitate and hinder their implementation to develop recommendations. METHODS AND ANALYSIS: The Quincie study follows a mixed-methods approach across two study phases. In phase 1, routinely collected data of 845 patients with incurable cancer from eight palliative care units in the commuting area of the Comprehensive Cancer Centre Lower Saxony will be analysed, regarding the implementation of 10 quality indicators from the national guideline on palliative care. Structural characteristics of the palliative care units will also be collected. In phase 2, recommendations for the practical implementation of the quality indicators, focusing on the achievement of the quality objectives identified in phase 1, will be developed in an implementation workshop. These recommendations will be subsequently agreed on via a Delphi survey. ETHICS AND DISSEMINATION: Ethical approval has been given by the ethics committee of the Hannover Medical School (first vote, No. 10567_BO_K_2022) and other relevant institutions. The results will provide urgently needed insights on the implementation of the national guideline on palliative care in clinical care and on the factors that facilitate and hinder this implementation. The results are expected to promote better care for patients with incurable cancer. The results will be directly reported to the participating palliative care units and will be published in relevant peer-reviewed journals. They will also be presented at national conferences. TRIAL REGISTRATION NUMBER: German Clinical Trials Register (DRKS00029965).

Evidence of hybridization between genetically distinct Baltic cod stocks during peak population abundance(s).

Range expansions can lead to increased contact of divergent populations, thus increasing the potential of hybridization events. Whether viable hybrids are produced will most likely depend on the level of genomic divergence and associated genomic incompatibilities between the different entities as well as environmental conditions. By taking advantage of historical Baltic cod (Gadus morhua) otolith samples combined with genotyping and whole genome sequencing, we here investigate the genetic impact of the increased spawning stock biomass of the eastern Baltic cod stock in the mid 1980s. The eastern Baltic cod is genetically highly differentiated from the adjacent western Baltic cod and locally adapted to the brackish environmental conditions in the deeper Eastern basins of the Baltic Sea unsuitable for its marine counterparts. Our genotyping results show an increased proportion of eastern Baltic cod in western Baltic areas (Mecklenburg Bay and Arkona Basin)-indicative of a range expansion westwards-during the peak population abundance in the 1980s. Additionally, we detect high frequencies of potential hybrids (including F1, F2 and backcrosses), verified by whole genome sequencing data for a subset of individuals. Analysis of mitochondrial genomes further indicates directional gene flow from eastern Baltic cod males to western Baltic cod females. Our findings unravel that increased overlap in distribution can promote hybridization between highly divergent populations and that the hybrids can be viable and survive under specific and favourable environmental conditions. However, the observed hybridization had seemingly no long-lasting impact on the continuous separation and genetic differentiation between the unique Baltic cod stocks.

Living apart together: Long-term coexistence of Baltic cod stocks associated with depth-specific habitat use.

Coexistence of fish populations (= stocks) of the same species is a common phenomenon. In the Baltic Sea, two genetically divergent stocks of Atlantic cod (Gadus morhua), Western Baltic cod (WBC) and Eastern Baltic cod (EBC), coexist in the Arkona Sea. Although the relative proportions of WBC and EBC in this area are considered in the current stock assessments, the mixing dynamics and ecological mechanisms underlying coexistence are not well understood. In this study, a genetically validated otolith shape analysis was used to develop the most comprehensive time series of annual stock mixing data (1977-2019) for WBC and EBC. Spatio-temporal mixing analysis confirmed that the two stocks coexist in the Arkona Sea, albeit with fluctuating mixing proportions over the 43-year observation period. Depth-stratified analysis revealed a strong correlation between capture depth and stock mixing patterns, with high proportions of WBC in shallower waters (48-61% in <20m) and increasing proportions of EBC in deeper waters (50-86% in 40-70m). Consistent depth-specific mixing patterns indicate stable differences in depth distribution and habitat use of WBC and EBC that may thus underlie the long-term coexistence of the two stocks in the Arkona Sea. These differences were also reflected in significantly different proportions of WBC and EBC in fisheries applying passive gears in shallower waters (more WBC) and active gears in deeper waters (more EBC). This highlights the potential for fishing gear-specific exploitation of different stocks, and calls for stronger consideration of capture depth and gear type in stock assessments. This novel evidence provides the basis for improved approaches to research, monitoring and management of Baltic cod stocks.

The role of genomic signatures of directional selection and demographic history in the population structure of a marine teleost with high gene flow.

Recent studies have uncovered patterns of genomic divergence in marine teleosts where panmixia due to high gene flow has been the general paradigm. These signatures of divergent selection are often impacted by structural variants, acting as "supergenes" facilitating local adaptation. The highly dispersing European plaice (Pleuronectes platessa)-in which putative structural variants (i.e., inversions) have been identified-has successfully colonized the brackish water ecosystem of the Baltic Sea. Thus, the species represents an ideal opportunity to investigate how the interplay of gene flow, structural variants, natural selection, past demographic history, and gene flow impacts on population (sub)structuring in marine systems. Here, we report on the generation of an annotated draft plaice genome assembly in combination with population sequencing data-following the salinity gradient from the Baltic Sea into the North Sea together with samples from Icelandic waters-to illuminate genome-wide patterns of divergence. Neutral markers pointed at large-scale panmixia across the European continental shelf associated with high gene flow and a common postglacial colonization history of shelf populations. However, based on genome-wide outlier loci, we uncovered signatures of population substructuring among the European continental shelf populations, i.e., suggesting signs of ongoing selection. Genome-wide selection analyses (xp-EHH) and the identification of genes within genomic regions of recent selective sweeps-overlapping with the outlier loci-suggest that these represent the signs of divergent selection. Our findings provide support for genomic divergence driven by local adaptation in the face of high gene flow and elucidate the relative importance of demographic history versus adaptive divergence in shaping the contemporary population genetic structure of a marine teleost. The role of the putative inversion(s) in the substructuring-and potentially ongoing adaptation-was seemingly not substantial.

Effectiveness of a specialist palliative home care nurse-patient consultation followed by an interprofessional telephone case conference compared with usual care among patients with non-oncological palliative care needs: protocol for the multicentre KOPAL cluster-randomised controlled trial.

INTRODUCTION: Progressive chronic, non-malignant diseases (CNMD) like congestive heart failure (CHF), chronic obstructive pulmonary disease (COPD) and dementia are of growing relevance in primary care. Most of these patients suffer from severe symptoms, reduced quality of life and increased numbers of hospitalisations. Outpatient palliative care can help to reduce hospitalisation rate by up to 50%. Due to the complex medical conditions and prognostic uncertainty of the course of CNMD, early interprofessional care planning among general practitioners who provide general palliative care and specialist palliative home care (SPHC) teams seems mandatory. The KOPAL study (a concept for strenghtening interprofessional collaboration for patients with palliative care needs) will test the effectiveness of a SPHC nurse-patient consultation followed by an interprofessional telephone case conference. METHODS AND ANALYSIS: Multicentre two-arm cluster randomised controlled trial KOPAL with usual care as control arm. The study is located in Northern Germany and aims to recruit 616 patients in 56 GP practices (because of pandemic reasons reduced to 191 participants). Randomisation will take place on GP practice level immediately after inclusion (intervention group/control group). Allocation concealment is carried out on confirmation of participation. Patients diagnosed with CHF (New York Heart Association (NYHA) classification 3-4), COPD (Global Initiative for Chronic Obstructive Lung Disease (GOLD) stage classification 3-4, group D) or dementia GDS stage 4 or above). Primary outcome is a reduced hospital admission within 48 weeks after baseline, secondary outcomes include symptom burden, quality of life and health costs. The primary analysis will follow the intention-to-treat principle. Intervention will be evaluated after the observation period using qualitative methods. ETHICS AND DISSEMINATION: The responsible ethics committees of the cooperating centres approved the study. All steps of data collection, quality assurance and data analysis will continuously be monitored. The concept of KOPAL could serve as a blueprint for other regions and meet the challenges of geographical equity in end-of-life care. TRIAL REGISTRATION NUMBER: DRKS00017795; German Clinical Trials Register.

[Can migration background be a boundary in palliative care at the end of life?] / Der Migrationshintergrund als Grenze der Palliativversorgung am Lebensende?

BACKGROUND: According to current research data, individuals with migration background rarely utilize palliative care services. The potential reasons remain largely unclear, with cultural differences being suggested most frequently. A study focusing on the needs of cancer patients with migration background in Germany provides an overview of the care problems encountered. METHOD: The qualitative study design focuses on biographic narratives by patients, their relatives and medical care providers (n = 57). Data were analyzed with "grounded theory" which disclosed various categories and coping strategies in dealing with both the disease and the care provided. RESULT: Arriving in palliative care, severely ill patients with migration background experience social exclusion. These migration-specific effects have a negative impact on coping with the disease and on palliative treatment and end-of-life care. Relatives and medical care providers face a challenge when they fail to meet the patients' expectations. Many problems are attributed to cultural differences although patients nearing the end of their lifes tend to articulate rather generic needs. CONCLUSION: Individuals with migration background frequently receive palliative care without their care givers having any specific knowledge of their migration biography. In order to do justice to societal effects, the support given must go beyond the mere medical expertise.

'It felt like a black hole, great uncertainty, but we have to take care for our patients'-Qualitative findings on the effects of the COVID-19 pandemic on specialist palliative home care.

BACKGROUND: The COVID-19 pandemic has affected health care systems worldwide. Multidisciplinary teams provide specialist palliative home care (SPHC) for patients with incurable, severe, progressive diseases. These patients are at the same time at high risk, if infected, highly constricted by containment measures, and dependent on support. AIM: To explore i) how German SPHC teams were affected by the pandemic during the first wave, ii) which challenges they faced, and iii) which strategies helped to handle the consequences of the COVID-19 pandemic for providing good SPHC. METHOD: Four focus groups (with representatives of 18 SPHC teams) and five guided interviews with stakeholders were conducted and analysed using qualitative content analysis. RESULTS: Seven key categories emerged from the data. A category in the background describes dependence on organizational characteristics (e.g. sponsorship), which varied by regional factors. Information management was a challenge to SPHC teams, as they had to collect, interpret and adapt, and disseminate information. They reported a shift in patient care because of the COVID-19 pandemic, due to restricted home visits, visitation ban in nursing homes, and difficulties for hospital, hospice and nursing home admissions. Measures to reduce risk of infection impeded teamwork. Teams relied upon their local networks in crisis management, but felt often overlooked by local health authorities. Their respective SPHC state associations supported them in information management and exchange. DISCUSSION: The pandemic has severely impacted home care for especially vulnerable seriously ill and dying people. A good network with local health providers and authorities could help to harmonize local regulations and ensure quality care for all patient groups. SPHC teams could play an important role in caring for palliative patients with COVID-19 who are not admitted to a hospital due to preferences or resources.

Assessing SNP-markers to study population mixing and ecological adaptation in Baltic cod.

Atlantic cod (Gadus morhua) is a species of great ecological and economical importance in the Baltic Sea. Here, two genetically differentiated stocks, the western and the eastern Baltic cod, display substantial mechanical mixing, hampering our understanding of cod ecology and impeding stock assessments and management. Based on whole-genome re-sequencing data from reference samples obtained from the study area, we designed two different panels of Single Nucleotide Polymorphisms markers (SNPs), which take into account the exceptional genome architecture of cod. A minimum panel of 20 diagnostic SNPs and an extended panel (20 diagnostic and 18 biologically informative SNPs, 38 in total) were developed and validated to distinguish unambiguously between the western and the eastern Baltic cod stocks and to enable studies of local adaptation to the specific environment in the Baltic Sea, respectively. We tested both panels on cod sampled from the southern Baltic Sea (n = 603) caught in 2015 and 2016. Genotyping results showed that catches from the mixing zone in the Arkona Sea, were composed of similar proportions of individuals of the western and the eastern stock. Catches from adjacent areas to the east, the Bornholm Basin and Gdansk Deep, were exclusively composed of eastern Baltic cod, whereas catches from adjacent western areas (Belt Sea and Öresund) were composed of western Baltic cod. Interestingly, the two Baltic cod stocks showed strong genetic differences at loci associated with life-history trait candidate genes, highlighting the species' potential for ecological adaptation even at small geographical scales. The minimum and the extended panel of SNP markers presented in this study provide powerful tools for future applications in research and fisheries management to further illuminate the mixing dynamics of cod in the Baltic Sea and to better understand Baltic cod ecology.