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Aims: To explore patterns and dynamics during the co-design process of nurse practitioners' role development in three departments in a Belgian tertiary hospital., Design: Participatory action research was utilised in conjunction with principles of a Grounded Theory approach to explore patterns and dynamics., Methods: Sixteen meetings were conducted between January and June 2021 with interdisciplinary teams to develop the roles. Thirteen exploratory interviews were held with the stakeholders involved between March and June 2022. All meetings and interviews were recorded and transcribed verbatim. Data were systematically analysed using researcher triangulation and thematic analysis., Results: Stakeholders' initial conception of the nurse practitioner roles affected development. A dynamic interplay of individual, team-related and contextual (e.g., financial and legal) factors shaped these conceptions. Through co-design, stakeholders' conception evolved as insights were shared, misconceptions challenged and perspectives broadened. Physicians generally the developmental process, while nursing leadership was more fragmented., Conclusion: This study identifies patterns and dynamics in interdisciplinary teams during the developmental process. The key findings underpin the crucial role of stakeholders' conceptions, use of co-design and leadership in this process. Therefore, a thorough understanding of initial conceptions is ess, and efforts should be directed towards providing sufficient knowledge and experience to prevent misconceptions. Additionally, this study emphasises the significance of a balanced team composition that incorporates diverse conceptions of the role. Finally, actions should be taken to empower leadership among nurses., Impact: Identified dynamics offer insights for healthcare organisations developing nurse practitioner roles. Educational institutions can use these insights to enhance healthcare professionals' curricula, preparing healthcare professionals for evolving advanced nursing roles and leadership. Additionally, it emphasises the necessity for policy work to establish a legal framework for nurse practitioners in Belgium., Reporting Method: The 'Standards for Reporting Qualitative Research' were used for reporting., Patient or Public Contribution: This study did not involve direct participation from patients or the public., (© 2024 John Wiley & Sons Ltd.)

Background: Graft infections of supra-aortic bypasses are rare, but often life-threatening. Guidelines for treatment of graft infections recommend systemic antibiotics and complete graft removal, followed by in-situ or extra-anatomic revascularisation., Methods: Based on case report, literature search was performed on Medline, Google Scholar and Web of Science databases, focussing on infected supra-aortic bypass reconstructions. Inclusion criterium was prosthetic graft infection, excluding stent and carotid patch infections., Results: A 68-year old man with clinically infected subclavian-subclavian bypass with interposition bypass to left carotid bifurcation, presented at emergency department with manifestation of sepsis. A total graft removal and an extra-anatomical prosthetic reconstruction was created, from right common carotid artery to left carotid bifurcation. Defect of prior left subclavian anastomosis was primarily closed, on right subclavian anastomosis per-operative acute bleeding occured, which was controlled by covered stent through right brachial artery. Literature review identified 16 cases. Different approaches ranging from open repair with autologous (six) or allogenic (two) material, to hybrid techniques (eight) have been described. No re-infections were reported. When comparing different types of approaches, no differences are found concerning overall complications., Conclusion: Complete graft removal with extra-anatomical reconstruction is challenging, but crucial in supra-aortic graft infections. Preservation of parts of vascular prosthesis depends on case-by-case basis, according to infection site and general condition of the patient. But due to rarity, only case reports are available, so no strong recommendations can be formulated. International registries should be initiated to share experiences and provide data for decent analysis of short, mid and long term outcomes.

Objective: The midterm outcomes of the low profile Zenith Alpha Abdominal Endovascular Graft from the ZEnith alPHa for aneurYsm Repair (ZEPHYR) registry are reported., Methods: The ZEPHYR registry is a physician initiated, multicentre, non-randomised, core laboratory controlled, prospective registry. Inclusion criteria were patients with a non-ruptured abdominal aortic aneurysm with a maximum diameter ≥ 50 mm or enlargement > 5 mm within 6 months, with a site reported infrarenal neck length of ≥ 10 mm and with the intention to electively implant the Zenith Alpha abdominal endograft. Patients from 14 sites across Germany, Belgium, and the Netherlands were included. The primary endpoint was treatment success, defined as technical success and clinical success. Technical success was defined as successful delivery and deployment of the endograft in the planned position without unintentional coverage of internal iliac or renal arteries, with successful removal of the delivery system. Clinical success was defined as freedom from aneurysm sac expansion > 5 mm, type I or type III endoleaks, aneurysm rupture, stent graft migration > 10 mm, open conversion, and stent graft occlusion., Results: Three hundred and forty-seven patients were included in the ZEPHYR registry. The median clinical follow up was 743 days (interquartile range [IQR] 657, 806) with a median imaging follow up of 725 days (IQR 408, 788). Treatment success at 6 months, 1, and 2 years was 92.5%, 90.4%, and 85.3%, respectively. Freedom from secondary intervention was 94.3%, 93.4%, and 86.9%, respectively. The predominant reason for secondary intervention was limb complications. Freedom from limb occlusion (per patient) at 6 months, 1, and 2 years was 97.2%, 95.8%, and 92.5%, respectively. Univariable and multivariable Cox regression analyses could not identify any independent predictor for limb complications., Conclusion: While treatment success is comparable with other commercially available grafts, the rate of limb complications at 2 years is of concern. The manufacturer's instructions for use should be followed closely. Further studies are necessary to investigate the root cause of the increased rate of limb complications with the Zenith Alpha Abdominal Endovascular Graft., (Copyright © 2024 The Author(s). Published by Elsevier B.V. All rights reserved.)

Non-small cell lung cancer (NSCLC) is known for high relapse rates despite resection in early stages. Here, we present the results of a phase I clinical trial in which a dendritic cell (DC) vaccine targeting patient-individual neoantigens is evaluated in patients with resected NSCLC. Vaccine manufacturing is feasible in six of 10 enrolled patients. Toxicity is limited to grade 1-2 adverse events. Systemic T cell responses are observed in five out of six vaccinated patients, with T cell responses remaining detectable up to 19 months post vaccination. Single-cell analysis indicates that the responsive T cell population is polyclonal and exhibits the near-entire spectrum of T cell differentiation states, including a naive-like state, but excluding exhausted cell states. Three of six vaccinated patients experience disease recurrence during the follow-up period of 2 years. Collectively, these data support the feasibility, safety, and immunogenicity of this treatment in resected NSCLC., Competing Interests: Declaration of interests The authors declare no competing interests., (Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.)

Global warming is causing rapid changes to the cryosphere. Predicting the future trajectory of the cryosphere requires quantitative reconstruction of its past variations. A recently identified sea-ice-associated haptophyte, known as Group 2i Isochrysidales, has given rise to a new sea-ice proxy with its characteristic alkenone distributions. However, apart from the occurrence of Group 2i Isochrysidales in regions with sea ice, and the empirical relationship between C 37:4 alkenone abundance and sea-ice concentration, little is known about the ecology of these haptophyte species. Here, we systematically mapped the spatial and temporal occurrence of known Group 2i Isochrysidales based on environmental DNA in both marine and lacustrine environments. Our results indicate Group 2i is widely distributed in icy marine and lacustrine environments in both Northern and Southern Hemisphere, but is absent in warm environments. Temporally, Group 2i is part of the sea-ice algae bloom during the cold seasons, in contrast to other Isochrysidales that bloom in open waters during warm seasons. Our results indicate that ice is a prerequisite for the occurrence of the psychrophilic Group 2i haptophytes in marine and lacustrine ecosystems and further affirms its value for past ice reconstructions., (© 2024. The Author(s).)

Sediment discharged from the Greenland Ice Sheet delivers nutrients to marine ecosystems around Greenland and shapes seafloor habitats. Current estimates of the total sediment flux are constrained by observations from land-terminating glaciers only. Addressing this gap, our study presents a budget derived from observations at 30 marine-margin locations. Analyzing sediment cores from nine glaciated fjords, we assess spatial deposition since 1950. A significant correlation is established between mass accumulation rates, normalized by surface runoff, and distance down-fjord. This enables calculating annual sediment flux at any fjord point based on nearby marine-terminating outlet glacier melt data. Findings reveal a total annual sediment flux of 1.324 + /- 0.79 Gt yr-1 over the period 2010-2020 from all marine-terminating glaciers to the fjords. These estimates are valuable for studies aiming to understand the basal ice sheet conditions and for studies predicting ecosystem changes in Greenland's fjords and offshore areas as the ice sheet melts and sediment discharge increase., (© 2024. The Author(s).)

Objective: The creation of an arteriovenous fistula (AVF) is considered the most effective hemodialysis (HD) vascular access. For patients who are not suitable for AVF, arteriovenous grafts (AVGs) are the best access option for chronic HD. However, conventional AVGs are prone to intimal hyperplasia, stenosis, thrombosis, and infection. Xeltis has developed an AVG as a potential alternative to currently available AVGs based on the concept of endogenous tissue restoration. The results of the first 6-month follow-up are presented here., Methods: The aXess first-in-human (FIH) study [NCT04898153] is a prospective, single-arm, multicenter feasibility study that evaluates the early safety and performance of the aXess Hemodialysis Graft. A total of 20 patients with end-stage renal disease were enrolled across six European investigational sites., Results: At 6-months follow-up, all grafts were patent with primary and secondary patency rates were 80% and 100%, respectively. Three patients required a re-intervention to maintain graft patency, while one re-intervention was required to restore patency. One graft thrombosis and zero infections were reported., Conclusion: The expected advantages of the novel aXess Hemodialysis Graft over conventional AVGs would be evaluated by the analysis on long-term safety and effectiveness during the 5-year follow-up of the currently ongoing trial., Competing Interests: Declaration of conflicting interestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Top-down and externally imposed quality requirements can lead to improvement but do not seem as sustainable as intended. There is a need for a quality model that intrinsically motivates healthcare professionals to contribute to quality and safe care in hospitals. This study shows how a quality model that matches the identity and the quality vision of the organization was developed. A multimethod design with three phases was used in the development of the model at a large teaching hospital in Belgium. In the first phase, 14 focus groups and 19 interviews with staff members were conducted to obtain an overview of the quality and safety challenges, complemented by a plenary discussion with the members of the patient advisory council. In the second phase, the challenges that had been captured were further assessed using a hospital-wide survey for all hospital staff. Finally, a newly established quality review board (with internal and external stakeholders) critically evaluated the input of Phases 1 and 2 and defined the basic quality standards to be implemented in the hospital. A first evaluation 2 years after the implementation was conducted based on (i) patients' perceptions of quality of care and patient safety by publicly available indicators collected in 2016, 2019, and 2022 and (ii) staff experiences and perceptions regarding the acceptability of the new model gathered through (grouped) interviews and an open questionnaire. The quality model consists of eight broad themes, including norms for the hospital staff (n = 27), sustained with quality systems (n = 8), and organizational support (n = 6), with aid from adequate management and leadership (n = 6). The themes were converted into 46 standards. These should be supported within a safe, efficient, and caring work environment. The new model was launched in the hospital in June 2021. The evaluation shows a significant difference in quality and safety on different dimensions as perceived by hospitalized patients. The perceived added value of the participatory model is a better fit with the needs of employees and the fact that the model can be adjusted to the specific context of the different hospital departments. The lack of hard indicators is seen as a challenge in monitoring quality and safety. The participation of various stakeholders inside and outside the organization in defining the quality challenges resulted in the creation of a participatory quality model for the hospital, which leads towards a better-supported quality policy in the hospital., (© The Author(s) 2024. Published by Oxford University Press on behalf of International Society for Quality in Health Care. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)