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Responsiveness and the minimal clinically important difference of the Chelsea Critical Care Physical Assessment tool (CPAx) in critically ill, mechanically ventilated adults: a study protocol for a prospective, multicentre, cohort study

Por: Eggmann · S. · Paton · M. · Villinger · C. · Bradley · S. · Hellings · T. · Hills · A. · Venetz · P. · Broadley · T. · Charles-Nelson · A. · Hodgson · C.
Introduction

The use of invasive life support in patients with a prolonged critical illness clearly saves lives but carries substantial risks, including intensive care unit-acquired weakness (ICUAW) and long-term disability. Early mobilisation might improve outcomes, yet the evidence is conflicting and complicated by the lack of a responsive outcome measurement to detect change in critically ill patients’ physical function and activity. The Chelsea Critical Care Physical Assessment tool (CPAx) is a valid and reliable instrument for patients at risk of ICUAW. However, its ability to measure change over time (responsiveness) and the minimal clinically important difference (MCID) have not yet been rigorously investigated.

Methods and analysis

The primary objective of this prospective, international, multicentre, longitudinal cohort study is to investigate responsiveness and to establish the MCID of the CPAx during the ‘intensive care unit (ICU) period’, from ICU baseline to ICU discharge, and ‘hospital period’, from ICU to hospital discharge. Adults with any critical illness who are mechanically ventilated for at least 72 hours, expected to remain in ICU (≥48 hours) and being treated by a physiotherapist are eligible for study inclusion. Functional measurements, including the CPAx and a global rating of change (GRC) scale, will be collected during routine physiotherapy. Responsiveness will be evaluated primarily using the GRC as an anchor to distinguish changed from unchanged/deteriorated patients (criterion validity). As such, the magnitude of change will be analysed with receiver operating characteristics. Additionally, construct validity will be explored with correlation coefficients and effect sizes to confirm/reject a priori formulated hypotheses. MCID will be investigated with anchor-based and distribution-based methods. We plan to recruit 120 patients across three sites in Australia and Switzerland.

Ethics and dissemination

Ethical approval has been obtained from each local ethics committee (Canton of Bern, Switzerland (2024-00346), Monash Health, Australia (HREC/106143/MonH-2024-438474(v3)), the Alfred, Australia (490/24)). The results will be disseminated through international/national conferences, peer-reviewed journals and social media. The high quality, rigorous testing of the CPAx could benefit researchers, clinicians and patients.

Trial registration number

NCT06419699.

The adaptive physical activity programme in stroke (TAPAS): protocol for a process evaluation in a sequential multiple assignment randomised trial

Por: Rocliffe · P. · Whiston · A. · O Mahony · A. · OReilly · S. M. · OConnor · M. · Cunningham · N. · Glynn · L. · Walsh · J. C. · Walsh · C. · Hennessy · E. · Murphy · E. · Hunter · A. · Butler · M. · Paul · L. · Fitzsimons · C. F. · Richardson · I. · Bradley · J. G. · Salsberg · J. · Hayes
Introduction

Participation in physical activity (PA) is a cornerstone of the secondary prevention of stroke. Given the heterogeneous nature of stroke, PA interventions that are adaptive to individual performance capability and associated co-morbidity levels are recommended. Mobile health (mHealth) has been identified as a potential approach to supporting PA post-stroke. To this end, we used a Sequential Multiple Assignment Randomised Trial design to develop an adaptive, mHealth intervention to improve PA post-stroke – The Adaptive Physical Activity programme in Stroke (TAPAS) (Clinicaltrials.Gov NCT05606770). As the first trial in stroke recovery literature to use this design, there is an opportunity to conduct a process evaluation for this type of adaptive intervention. The aim of this process evaluation is to examine the implementation process, mechanism of change and contextual influences of TAPAS among ambulatory people with stroke in the community.

Methods and analysis

Guided by the Medical Research Council Framework for process evaluations, qualitative and quantitative methods will be used to examine the (1) implementation process and the content of TAPAS (fidelity adaptation, dose and reach); (2) mechanisms of change (participants’ response to the intervention; mediators; unexpected pathways and consequences) and (3) influence of the context of the intervention. Quantitative data will be presented descriptively, for example, adherence to exercise sessions. Qualitative data will be collected among TAPAS participants and the interventionist using semi-structured one-to-one or focus group interviews. Transcribed interviews will be analysed using reflexive thematic analysis. Key themes and sub-themes will be developed.

Ethics and dissemination

Ethical approval has been granted by the Health Service Executive Mid-Western Ethics Committee (REC Ref: 026/2022) (25/03/2024). The findings will be submitted for publication and presented at relevant national and international academic conferences.

Surgical versus non-surgical management of orbital fractures: study protocol for evidence generation of a prospective multicentre observational cohort registry

Introduction

There remains little consensus or guidelines for the clinical management of traumatic orbital fractures (OFx). The OFx Registry aims to increase real-world clinical evidence for the treatment of OFx via prospective, multicentre, international data collection. The primary objectives of this observational cohort study are (1) to document current treatment practices for and (2) to assess the outcomes of surgical and non-surgical treatment of orbital floor and/or medial wall fractures.

Methods and analysis

Approximately 300 adult patients presenting with a displaced OFx in the orbital floor and/or medial wall will be enrolled prospectively over a recruitment period of ~36 months. All eligible patients treated either surgically or non-surgically as per routine standard of care will have follow-up assessments at 6 weeks, 3 months and 6 months post-treatment. Demographic data, injury details, treatment details and outcome measures will be documented in a cloud-based database. Outcome measures include clinical outcomes (eg, diplopia, extraocular motility, and condition of the eyelid, globe and soft tissues), radiological outcomes from collected images, patient-reported outcomes (eg, Diplopia Questionnaire and the newly developed AO Craniomaxillofacial (CMF) Injury Symptom Battery) and complications. A statistical analysis plan will be prepared before final analysis summarising the descriptive statistics to be used for data assessment. Appropriate research questions and statistical tests may be applied additionally, depending on the availability and quality of data collected.

Ethics and dissemination

Ethics approval was obtained before patients were enrolled at each participating site. Patient enrolment followed an informed consent process approved by the responsible ethics committee. Peer-reviewed publications are planned to disseminate the study results.

Trial registration number

NCT03887988.

Pathophysiology of Wound Development and Chronicity in Renal Disease: A Narrative Review

ABSTRACT

Renal disease, including chronic kidney disease (CKD) and end-stage renal disease (ESRD), has a profound impact on wound healing. Multiple studies have demonstrated that renal disease leads to an increased risk of diabetic foot ulcers, the formation of unique wounds like calciphylaxis, slower wound healing and a higher risk of amputation. This review details the interrelated mechanisms by which renal disease impacts wound healing. Motor and sensory neuropathies contribute to wound formation via foot deformities and decreased sensation. Neuropathies also decrease neuropeptide release, impairing angiogenesis and inflammatory regulation. Accumulation of uremic toxins in renal disease leads to vessel wall calcification, impairing blood supply and predisposing patients to calciphylaxis. Vitamin and mineral deficiencies lead to impaired clotting, development of a chronic inflammatory state and decreased collagen production. Renal disease and its comorbidities are also associated with immune dysregulation, increasing the risk of wound infections and promoting the persistence of pro-inflammatory macrophages. While hypoxia-inducible factor-1α (HIF-1α) promotes angiogenesis under hypoxic conditions in normal wound healing, oxidative stress and chronic hypoxia in renal disease generate an environment that compromises the activity of HIF-1α. Inadequate erythropoietin response to hypoxia also leads to anaemia, further impairing oxygen delivery to wound sites. Clinically, these factors result in increased 10-year mortality for patients with DFU and CKD compared to those with DFU alone, both with and without amputation. We must utilise our understanding of the pathophysiology of impaired wound healing in renal disease to target preventative measures, optimise treatment and improve overall outcomes.

Qualitative study to inform the design and contents of a patient-reported symptom-based risk stratification system for patients referred from primary care on a suspected head and neck cancer diagnostic pathway

Por: Albutt · A. · McVey · L. · Randell · R. · Hardman · J. C. · Kellar · I. · Odo · C. · Patterson · J. · Bradley · P. T. · Davies · C. · Tikka · T. · Paleri · V. · Rousseau · N.
Objectives

This study aims to inform the development of a patient-reported symptom questionnaire for head and neck cancer and outline the requirements for a patient-reported symptom-based risk stratification system. The study objectives are to explore how clinicians ask questions and decide subsequent steps for patients referred with suspected head and neck cancer; the language patients and clinicians use to describe symptoms; how clinicians reassure and discharge low-risk patients; and identify clinician and patient experiences of the head and neck cancer diagnostic pathway and their views on a novel diagnostic pathway using patient-reported symptom-based risk stratification.

Design

The study employed qualitative methods including observation and recordings of clinic consultations and semistructured interviews with clinicians and patients. Analysis proceeded concurrently with data collection using a rapid qualitative analysis approach.

Setting

Three acute UK National Health Service Trusts with variation in service delivery models. Data collection took place between April and October 2023.

Participants

One hundred and fifty-six adults referred for suspected head and neck cancer, and 21 clinicians from different subspecialties were recruited. A subset of recruited patients (n=16) and clinicians (n=13) were interviewed. One observation of a general head and neck clinic was conducted.

Results

The findings highlight types of symptoms and the language used by patients and clinicians to describe these symptoms in clinic consultations. During interviews, patients described the need for in-person support and human clinical decision-making, an accessible system for reporting their symptoms and reassurance regarding the security of patient data. Clinicians discussed the need for risk scores to be sufficiently validated to be trusted, the potential clinical usefulness of a risk score-based system, for example, to support triage by discriminating symptoms, and accessibility for patients. The observation highlighted inconsistent and sometimes unclear referral information and the limited time clinicians have to read referral information.

Conclusion

The findings have implications for the development of a patient-reported symptom-based risk stratification system. As well as ensuring patients can understand the language used, it will be important to consider how their emotional needs can be met. The findings also have wider implications for understanding the impact of language on emotionally evocative healthcare interactions.

Simultaneous pancreas and kidney transplantation: A qualitative study of partners’ experiences

by Katie E. J. Hann, Marco Cinnirella, Clare Bradley, Andrea Gibbons

Chronic health conditions often affect the lives of family members as well as the patient themselves. The current study aimed to explore the experiences of partners of individuals with diabetes and chronic kidney disease (CKD) who received a simultaneous pancreas and kidney transplant (SPKT) to understand the wider impact of SPKTs. Eight partners of recipients of SPKT were interviewed about their experiences before and after the transplant. Interviews were transcribed verbatim and analysed thematically. Participants described how they navigated life with an unwell partner; sub-themes included a) living with pervasive worry, b) the challenge of enhanced responsibilities, and c) the buffering effect of social support. Diabetes complications, such as the experience of severe hypoglycaemia, particularly fuelled worry. Participants felt great relief after their partner’s successful transplant but also faced certain realities around the potential for their partner’s health to deteriorate again. The study highlights the impact of diabetes and CKD on patients’ families and the wider benefit of transplantation, not just for the patient. The pancreas transplant, in addition to the kidney, relieved partners of their worry about hypoglycaemic events and the development of diabetes complications. Partners may benefit from being encouraged to seek support and to maintain their own health and wellbeing.

<i>In vivo</i> monitoring of leukemia-niche interactions in a zebrafish xenograft model

by Anja Arner, Andreas Ettinger, Bradley Wayne Blaser, Bettina Schmid, Irmela Jeremias, Nadia Rostam, Vera Binder-Blaser

Acute lymphoblastic leukemia (ALL) is the most common type of malignancy in children. ALL prognosis after initial diagnosis is generally good; however, patients suffering from relapse have a poor outcome. The tumor microenvironment is recognized as an important contributor to relapse, yet the cell-cell interactions involved are complex and difficult to study in traditional experimental models. In the present study, we established an innovative larval zebrafish xenotransplantation model, that allows the analysis of leukemic cells (LCs) within an orthotopic niche using time-lapse microscopic and flow cytometric approaches. LCs homed, engrafted and proliferated within the hematopoietic niche at the time of transplant, the caudal hematopoietic tissue (CHT). A specific dissemination pattern of LCs within the CHT was recorded, as they extravasated over time and formed clusters close to the dorsal aorta. Interactions of LCs with macrophages and endothelial cells could be quantitatively characterized. This zebrafish model will allow the quantitative analysis of LCs in a functional and complex microenvironment, to study mechanisms of niche mediated leukemogenesis, leukemia maintenance and relapse development.

Characterization of a full‐thickness decellularized and lyophilized human placental membrane for clinical applications

Abstract

Allografts derived from live-birth tissue obtained with donor consent have emerged as an important treatment option for wound and soft tissue repairs. Placental membrane derived from the amniotic sac consists of the amnion and chorion, the latter of which contains the trophoblast layer. For ease of cleaning and processing, these layers are often separated with or without re-lamination and the trophoblast layer is typically discarded, both of which can negatively affect the abundance of native biological factors and make the grafts difficult to handle. Thus, a full-thickness placental membrane that includes a fully-intact decellularized trophoblast layer was developed for homologous clinical use as a protective barrier and scaffold in soft tissue repairs. Here, we demonstrate that this full-thickness placental membrane is effectively decellularized while retaining native extracellular matrix (ECM) scaffold and biological factors, including the full trophoblast layer. Following processing, it is porous, biocompatible, supports cell proliferation in vitro, and retains its biomechanical strength and the ability to pass through a cannula without visible evidence of movement or damage. Finally, it was accepted as a natural scaffold in vivo with evidence of host-cell infiltration, angiogenesis, tissue remodelling, and structural layer retention for up to 10 weeks in a murine subcutaneous implant model.

Nurse‐led clinics in primary health care: A scoping review of contemporary definitions, implementation enablers and barriers and their health impact

Abstract

Aims

To define nurse-led clinics in primary health care, identify barriers and enablers that influence their successful implementation, and understand what impact they have on patient and population health outcomes.

Background

Nurse-led clinics definitions remain inconsistent. There is limited understanding regarding what enablers and barriers impact successful nurse-led clinic implementation and their impact on patient health care.

Design

Scoping review using narrative synthesis.

Methods

PubMed, MEDLINE, Web of Science, Scopus, CINAHL and PsycINFO were searched to identify nurse-led clinic definitions and models of care between 2000 and 2023. Screening and selection of studies were based on eligibility criteria and methodological quality assessment. Narrative synthesis enabled to communicate the phenomena of interest and follows the PRISMA for Scoping Reviews (PRISMA-ScR) checklist.

Results

Among the 36 identified studies, key principles of what constitutes nurse-led clinics were articulated providing a robust definition. Nurse-led clinics are, in most cases, commensurate with standard care, however, they provide more time with patients leading to greater satisfaction. Enablers highlight nurse-led clinic success is achieved through champions, partners, systems, and clear processes, while barriers encompass key risk points and sustainability considerations.

Conclusion

The review highlights several fundamental elements are central to nurse-led clinic success and are highly recommended when developing interventional nurse-led strategies. Nurse-led clinics within primary health care seek to address health care through community driven, health professional and policy supported strategies. Overall, a robust and contemporary definition of nurse-led care and the clinics in which they operate is provided.

Relevance to Clinical Practice

The comprehensive definition, clear mediators of success and the health impact of nurse-led clinics provide a clear framework to effectively build greater capacity among nursing services within primary health care. This, in addition, highlights the need for good health care policy to ensure sustainability.

Patient or Public Contribution

No Patient or Public Contribution.

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