Multisectoral coordination during the COVID-19 pandemic: practices, challenges and recommendations for future preparedness–a systematic literature review protocol

Introduction
The COVID-19 pandemic amplified the need for robust multisectoral coordination; yet the specific mechanisms, benefits and challenges of such collaboration particularly in low- and middle-income countries (LMICs) remain poorly synthesised. This review aims to delineate the key elements, benefits, challenges and improvement strategies of multisectoral coordination during COVID-19 and to compare patterns between LMICs and high-income countries (HICs).

Methods and analysis
Eligible studies will include empirical qualitative, quantitative or mixed-methods research published in English between 1 January 2020 and 15 August 2024 that examines formal coordination mechanisms (eg, task forces, public-private partnerships, inter-agency committees) within the context of COVID-19. Searches will be conducted across PubMed, EBSCOhost, Emerald Insight, Google Scholar and selected grey-literature repositories. Citation chaining will be employed to identify additional sources.
Two reviewers will independently screen all records using Covidence, applying pre-piloted eligibility criteria to 5% of citations and proceeding only if inter-rater reliability achieves ≥0.70. Data will be extracted into a Consolidated Framework for Implementation Research (CFIR)-informed template. Qualitative data will be analysed through framework synthesis, structured by the five CFIR domains. Quantitative data will be narratively summarised and, where outcomes are sufficiently similar across at least two studies, synthesised using a fixed-effect model.
Risk of bias will be assessed using Critical Appraisal Skills Programme for qualitative and Risk Of Bias In Non-randomised Studies of Interventions for non-randomised studies. Studies with serious or critical risk will be excluded from pooling. Subgroup analyses (LMIC vs HIC), sensitivity analyses (model and risk) and confidence grading using Confidence in the Evidence from Reviews of Qualitative Research and Grading of Recommendations, Assessment, Development and Evaluations will be conducted.

Ethics and dissemination
No primary data will be collected; thus additional Research Ethics Committee approval is unnecessary. The results will be disseminated via open-access publication, conference presentations and policy briefs for Nairobi County health stakeholders.

PROSPERO registration number
CRD42023466849.

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Interventions that use highly visual social media platforms to tackle unhealthy body image in adolescents and young adults: a systematic review protocol

Introduction
Social media sites are increasingly used to assess and treat different mental health problems in adolescents and young adults. However, it is still unclear which social network sites are the most used for this purpose and what interventions for tackling unhealthy body image have been validated. This systematic review will assess evidence on the effectiveness of social media interventions in improving unhealthy body image among adolescents and young adults.

Methods and analysis
Five databases, including Embase, Scopus, MEDLINE, Web of Science (Core Collection) and PsycINFO, will be consulted, with a publication window starting in 2011 and ending on 31 October 2024. Rayyan software will detect and eliminate duplicates. We will include only studies based on social media-based interventions for adolescents and young adults with body image problems. Two independent reviewers will screen titles, abstracts and full-text articles, resolving conflicts through discussion with a third reviewer as needed. The two reviewers will complete the risk of bias assessments for each included study, using the Joanna Briggs Institute critical appraisal checklists for randomised controlled trials and quasi-experimental studies. We will report on the characteristics of studies, participants and interventions in descriptive narrative form, along with the results from the assessment of social media interventions.

Ethics and dissemination
Universidad Cesar Vallejo’s ethics committee approved this systematic review protocol as part of a wider project (code 100-CEI-EPM-UCV-2022). Results will be shared via social media to engage stakeholders and promote awareness of body image issues.

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Beyond the guideline: lessons in leadership, limits and legacy from the BSG IBD process

Introduction: the hidden labour behind clinical guidelines The British Society of Gastroenterology’s (BSG) latest 5-year national guideline for inflammatory bowel disease (IBD)1 has recently completed. This adjunct commentary to the guideline contains the reflections of two chairs—one methodological, one clinical—who steered the process. It is not written to seek praise or indulgence but rather to lay bare the pragmatic decisions, structural challenges and emerging questions that surfaced while leading the guideline process. We offer five key insights to inform future BSG guideline work and to contribute to international dialogue on how we produce, update and future-proof clinical guidance in increasingly complex evidence environments. Breadth versus usability: how big is too big? The scope of this guideline is vast—over 100 000 words, 43 recommendations, 114 good practice statements with nearly 800 original manuscripts referenced, prompting peer review to suggest relegating many visual and tabular summaries to supplementary…

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Single-cell omics in inflammatory bowel disease: recent insights and future clinical applications

Inflammatory bowel diseases (IBDs), which include ulcerative colitis (UC) and Crohn’s disease (CD), are chronic conditions characterised by inflammation of the intestinal tract. Alterations in virtually all intestinal cell types, including immune, epithelial and stromal cells, have been described in these diseases. The study of IBD has historically relied on bulk transcriptomics, but this method averages signals across diverse cell types, limiting insights. Single-cell omic technologies overcome the intrinsic limitations of bulk analysis and reveal the complexity of multicellular tissues at a cell-by-cell resolution. Within healthy and inflamed intestinal tissues, single-cell omics, particularly single-cell RNA sequencing, have contributed to uncovering novel cell types and cell functions linked to disease activity or the development of complications. Collectively, these results help identify therapeutic targets in difficult-to-treat complications such as fibrostenosis, creeping fat accumulation, perianal fistulae or inflammation of the pouch. More recently, single-cell omics have gradually been adopted in studies to understand therapeutic responses, identify mechanisms of drug failure and potentially develop predictors with clinical utility. Although these are early days, such studies lay the groundwork for the implementation in clinical practice of new technologies in diagnostics, monitoring and prediction of disease prognosis. With this review, we aim to provide a comprehensive survey of the studies that have applied single-cell omics to the study of UC or CD, and offer our perspective on the main findings these studies contribute. Finally, we discuss the limitations and potential benefits that the integration of single-cell omics into clinical practice and drug development could offer.

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Retraction: Unleashing the potential of exosome ncRNAs for early gastric cancer detection–a critical appraisal of machine learning approaches

Zeng X. Unleashing the potential of exosome ncRNAs for early gastric cancer detection—a critical appraisal of machine learning approaches. Gut 2025;74:1191–1192.
This letter1 has been retracted by Gut due to apparent peer review manipulation.
BMJ has evidence that this letter’s peer review process was compromised. Two reviewers, recommended by the authors, used the same computer to submit their peer review comments as the submitting author used to submit the article to the journal. The authors and reviewers were asked to respond to these concerns and provide an explanation, but did not provide a satisfactory response.

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Cardiac Xenotransplantation: Current State and Future Directions

Circulation, Volume 152, Issue 1, Page 58-73, July 8, 2025. The increasing demand for donor hearts presents both a critical challenge and a significant opportunity for innovation in cardiac transplantation. Advancements in immunosuppressive regimens and genetic engineering have reignited recent interest in xenotransplantation. Notably, 2 human patients have received genetically modified pig hearts under expanded-access authorization. They survived for 40 and 60 days, with xenograft failure preceding death in both cases. Concurrently, decedent studies have focused on monitoring the short-term physiological function of genetically modified cardiac xenografts in legally brain-dead recipients, representing a novel experimental paradigm for preclinical testing to help bridge the gap between nonhuman primate studies and clinical trials. These contemporary achievements build on a large body of exploratory efforts in cardiac xenotransplantation in nonhuman primates. Despite significant progress in overcoming hyperacute rejection, adaptive cellular and humoral immunological barriers remain. This review aims to critically evaluate the current advancements in xenotransplantation, to explore ongoing challenges, and to discuss the future potential of this innovative approach in addressing the growing demand for donor organs in cardiac transplantation.

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Definition and key concepts of high-performing health systems: a scoping review

Objectives
To determine how high performing is defined in relation to a health system and chart the literature on the definitions and key concepts of high-performing healthcare systems.

Design
Scoping review.

Data sources
MEDLINE, EMBASE, CINAHL and the Cochrane Central Register of Controlled Trials were searched from inception to July 2024. The grey literature was also searched.

Eligibility criteria
Included studies reported on health systems and high performance to identify explicit definitions, research outcomes and knowledge gaps.

Results
Two reviewers independently screened 5721 citations and 507 full-text articles, resulting in the inclusion of 35 primary articles and 47 companion documents in the review. Three independent definitions for a high-performance health system were identified. 24 research studies reported outcomes on the elements of a high-performing health system (58%), system evaluation (32%) and tool development or validation (10%). Knowledge gaps identified were the lack of a common definition, a lack of common indicators, strategies for moving evidence into policy and practice, and difficulties with comparisons across health systems.

Conclusions
We found limited definitions and a lack of empirical evidence on our topic. There is an opportunity for primary research in the area of health systems and high performance.

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Health economic evaluations of perinatal complications with conflicting maternal-fetal interests: a scoping review protocol

Introduction
Perinatal complications involving conflicts between maternal and fetal health interests present a unique challenge to health economic evaluations. No comprehensive synthesis exists of how such studies account for dual-patient outcomes. We aim to develop a scoping review protocol to map and critically examine the methodologies in this understudied area.

Methods and analysis
The scoping review will be conducted under the Joanna Briggs Institute (JBI) framework. It will include health economic studies, such as cost-effectiveness, cost utility and decision analysis studies, focusing on clinical conditions during pregnancy where maternal and fetal interests conflict. Cost analysis without effectiveness assessment will be excluded. Using comprehensive search strategies in Medline (Ovid), EMBASE (Elsevier) and Cochrane Library (Wiley), two independent reviewers will screen and identify relevant studies via abstract and full-text review. We will perform data extraction following an adapted form from the Consolidated Health Economic Evaluation Reporting Standards checklist, which includes the content details, such as the type of study, population, intervention, comparator, probability, utility, duration, cost, model types and uncertainty measurements. As we try to explore the impact of the health economic studies in clinical practice, we will include citation metrics of each study and whether the study was cited by practice guidelines and clinical trials in the data extraction. We will also apply the JBI Checklist for Economic Evaluations to assess the reporting completeness in each article. Results will be tabulated by clinical theme and synthesised narratively to highlight patterns in valuation approaches, gaps in current methods and impact on clinical guidelines.

Ethics and dissemination
This study does not require ethical approval as it involves secondary analysis of published data. Findings will be disseminated through peer-reviewed publications, conference presentations and stakeholder engagement activities.

PROSPERO registration number
CRD42024557324

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Comparative efficacy of pharmacological and non-pharmacological interventions on pain intensity of primary dysmenorrhoea: protocol for systematic review and network meta-analysis

Introduction
Primary dysmenorrhoea (PD) is the most common gynaecological condition among young women and is associated with significant socioeconomic repercussions. It is unclear which works best for pain relief when pharmacological and non-pharmacological interventions are compared. This systematic review and network meta-analysis (NMA) will aim to compare and rank the effects of pharmacological and non-pharmacological interventions in patients with PD.

Methods and analysis
Randomised controlled trials of pharmacological and non-pharmacological interventions for PD will be identified via a search of the PubMed, Cochrane Library, Web of Science, Embase, Scopus database and Google Scholar search engine until September 2025. The primary outcome will be a change in pain intensity among patients with PD, while the secondary outcomes include health-related quality of life, symptoms of depression and anxiety, and treatment-related adverse events. Two independent reviewers will perform document screening, study selection and data extraction. The methodological quality of the included studies will be assessed using the Cochrane Risk of Bias tool (V.2). The RevMan, Stata and Aggregate Data Drug Information System software will be used to perform a pairwise meta-analysis and Bayesian NMA in a random-effects model. The certainty of the evidence will be rated using the Grading of Recommendations, Assessment, Development, and Evaluation System.

Ethics and dissemination
This systematic review protocol is exempt from ethical approval as it involves analysis of previously published data. The findings of this review will be submitted to peer-reviewed journals.

Trial Registration number
CRD42024543573.

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Prospective multicentre randomised controlled trial to assess the clinical effectiveness of the novel CirrhoCare digital therapeutic management system: a study protocol

Introduction
Liver cirrhosis accounts for over 10 000 deaths in the UK each year with a total loss of 60 000 quality-adjusted life-years. There is a substantial cost to the NHS of £4.5 billion, with new liver-related decompensation events accounting for the majority of this. Following an acute cirrhosis decompensating event, there is a significant risk of hospital readmission with 90-day readmission rates as high as 53%. Current care in the UK is reactive and patients are often only readmitted when they have presented acutely as an emergency with significant decompensation.

Methods and analysis
CirrhoCare is a prospective, multicentre, randomised controlled trial comparing the CirrhoCare management system with standard-of-care for high-risk cirrhosis patients who have been discharged following an admission with acute decompensation. The CirrhoCare management system comprises a novel digital platform for use in a patient’s home, designed to proactively detect the first signs of new decompensation in patients with established cirrhosis, discharged to the community. This enables a clinician to instigate early community-based care or, if needed, to triage the patient for hospital interventions.
214 patients will be recruited to the CirrhoCare trial from at least 12 UK centres. Patients will be randomised on a 1:1 ratio allocation to the CirrhoCare Management System or standard of care. Participants who are randomised to CirrhoCare will receive a CirrhoCare health kit comprising a smart watch, smart phone with enabled SIM (Subscriber Identity Module) network card, blood pressure monitor, weighing scales and thermometer. Participants will take measurements every morning Monday to Friday and will be followed up for 90 days postdischarge.
The primary objective of this study is to assess the clinical effectiveness of the CirrhoCare digital management system. We hypothesise that its early community-based intervention will reduce the number of unplanned hospital interventions and admissions and prevent liver-related complications when compared with standard-of-care management.

Ethics and dissemination
CirrhoCare is a National Institute for Health and Care Research-funded study (NCT06223893). The study has UK Research Ethics Committee and Health Research Authority (HRA) approvals, with approval granted by the HRA and Health and Care Research Wales committee. The results of this study will be published in peer review journals, disseminated at international conferences as well as established Patient and Public Involvement and Engagement networks.

Trial registration number
ISRCTN11380842.

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Systematic mapping review of statistical methods applied to the relationships between cancer diagnosis and geographical level factors in UK

Objectives
We examined studies that analysed the spatial association of cancers with demographic, environmental, behavioural and/or socioeconomic factors and the statistical methods applied.

Design
Systematic mapping review.

Data sources
Web of Science (SSCI) (search on 28 July 2022), MEDLINE, SocINDEX and CINAHL (search on 4 August 2022), additional searches included grey literature.

Eligibility criteria for selecting studies
(1) Focused on the constituent countries of the UK (England, Wales, Scotland and Northern Ireland) and its major regions (eg, the North West); (2) compared cancer(s) outcomes with demographic, environmental, behavioural and socioeconomic characteristics by applying methods to identify their spatial association; (3) reported cancer prevalence, incidence rates, relative risk or ORs for a risk factor or to an average level of cancer.

Data extraction and synthesis
A standardised data extraction form was developed and for all studies, core data were extracted including bibliographic information, study design, geographical factors analysed, data aggregation level, methods applied and main findings. We described and synthesised the characteristics of the studies using summary tables, charts and graphs.

Results
52 studies were included covering a variety of objectives and geographical scales. These studies considered different types of cancer, with the most common cancer types analysed being blood and lymphoid cell cancers. The most common methods used to assess the association between cancers and geographical level factors were regression analyses, with the majority being Poisson regression, then logistic and linear regression. Studies were usually conducted at ward and local authority level, or by exact point location when distances from putative risk sources were considered. The results were usually presented in plots or as tables, instead of maps.

Conclusion
Our results highlight the lack of consideration of spatially explicit models in the analysed studies, with the risk of having failed the assumption of independence in the data.

PROSPERO registration number
CRD42022349165.

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Association between left atrial appendage volume and atrial fibrillation recurrence after catheter ablation: a systematic review and meta-analysis

Objectives
To evaluate the association between left atrial appendage volume (LAAV) and atrial fibrillation (AF) recurrence after catheter ablation (CA) and explore the potential mechanism.

Design
Systematic review and meta-analysis.

Data sources
PubMed, EMBASE, Web of Science and Cochrane Library databases were searched systematically from inception through 28 September 2024 to identify relevant studies.

Eligibility criteria
Observational studies that estimated the association between LAAV and AF recurrence.

Data extraction and synthesis
Two independent investigators screened studies for inclusion and extracted data. Statistical heterogeneity was assessed using the Cochrane Q-test and I², with p 50% indicating significant heterogeneity. This study used a random-effects model to account for potential heterogeneity. The quality of the included studies was assessed using the Newcastle–Ottawa Scale (NOS), Risk of Bias in Non-randomized Studies of Interventions (ROBINS-I tool) and the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach. Publication bias was examined through funnel plots and Egger’s test.

Result
Seventeen studies (3078 patients) were included. Meta-analysis of 11 studies suggested that LAAV was significantly associated with the risk of AF recurrence in both univariate (HR 1.06, 95%CI 1.04 to 1.08, p

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Mental health interventions for humanitarian volunteers: a scoping review

Objectives
The aim of this scoping review was to map the nature and extent of the existing literature on mental health interventions for humanitarian volunteers in disaster contexts. The study also explored how the interventions were evaluated.

Design
The methodology of this scoping review followed the extended guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses for Scoping Reviews.

Data sources
Five academic bibliographic databases (PubMed, Embase, Web of Science, EBSCOhost and Google Scholar), grey literature websites (Google Scholar, ProQuest, Policy Commons, etc.) and relevant organisational archives were systematically searched for eligible documents.

Eligibility criteria
Both peer-reviewed and grey literature studies on mental health interventions for humanitarian volunteers in the context of any type of disaster were eligible for inclusion. Research papers that evaluated any such intervention were also included. Documents that targeted professional humanitarian workers or explored physical health conditions or diseases in disaster contexts, letters to the editor, comments, correspondence and research protocols were excluded. There were no restrictions in terms of the date and language of the documents.

Data extraction and synthesis
A systematic search of the targeted databases was conducted from 12 May 2025 to 20 May 2025. Deduplication, screening and full-text evaluation for the selection of documents were done using the online version of Rayyan. Data were collected and recorded into a structured Microsoft Excel sheet. Two researchers individually conducted the selection of the articles and the extraction of data. A third researcher helped to resolve any discrepancies if required.

Results
A total of 2627 documents were retrieved by searching the targeted databases and websites. After matching them with the eligibility criteria, 20 documents were included in the final list. 14 of them were research papers; the rest was organisational literature. All the papers were from 2006 and later, except one that was from 1998. No documents were found from the Middle East, North Africa and Sub-Saharan regions. 10 broad categories of interventions were identified, which were either implemented in the field or suggested in the form of guidelines. Most of the interventions were postexposure and preventive in nature. Psychological first aid was the most widely used intervention in this context, being used by the national societies of the International Federation of Red Cross and Red Crescent Societies. Nine of the documents were research papers evaluating the effectiveness of the interventions using different scales and customised questionnaires. Four of them did not observe any notable effect on the mental health of the participants.

Conclusions
Over the past two decades, the evidence on mental health interventions for humanitarian volunteers has grown. The reviewed literature documented various interventions and guidelines that need further study and testing to both prove and improve their effectiveness. Organisational policies could incorporate and further evaluate these to ensure the psychosocial well-being of volunteers. A review of research papers on intervention effectiveness found heterogeneity in settings, designs, interventions and methods, precluding a systematic review. More research is needed on individual interventions, volunteer perceptions and comparing interventions to identify the most effective ones. Additionally, comparing pre-exposure and postexposure interventions with multimodal systems that support volunteers throughout deployment is recommended.

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What motivates GPs to vaccinate against influenza? Protocol for a mixed-methods study

Introduction
In Germany, influenza vaccination rates in at-risk groups are well below the 75% coverage recommended by the WHO. Although it has been shown that general practitioners (GPs) can play a key role in increasing their patients’ willingness to be vaccinated, this potential does not seem to have been fully used. This study aims to uncover factors that motivate GPs to vaccinate their patients against influenza, investigate the role of financial incentives in achieving higher vaccination rates and determine how the daily practice of GPs can be made more vaccination friendly.

Methods and analysis
A mixed-methods approach is employed to reach the research aims. Literature reviews will be conducted to identify factors that motivate GPs to vaccinate against influenza and to identify studies in which preferences are elicited. This is followed by semistructured interviews with GPs (n=6–10). The scoping reviews and interviews serve as a basis for the development of a quantitative survey directed at GPs which includes a discrete choice experiment. The quantitative survey will be sent to a total of 3760 GPs.

Ethics and dissemination
The study will be conducted in accordance with the Declaration of Helsinki. A positive vote has been received from the Ethics Committee of the Medical Association North Rhine (2024259). Study participants will only be included in the study after being given informed consent. Manuscripts will be prepared for the scoping review on motivating factors and after completion of the quantitative survey, which will be submitted to peer-reviewed journals. Interim results and final results of the project will be presented at conferences.

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Construction of a quality evaluation indicator system for extended care in patients with chronic obstructive pulmonary disease: a cross-sectional study

Objective
The aim of this study was to construct a quality evaluation indicator system for extended care in patients with chronic obstructive pulmonary disease (COPD), provide beneficial references for quality evaluation and practice standardisation of extended care.

Design
This study was conducted from April to November 2023. Based on the three-dimensional quality structure model of ‘structure–process–result’, we used literature review and Delphi method to form the quality evaluation indicator system for extended care in patients with COPD and determined the weight of each indicator by analytic hierarchy process (AHP).

Setting
Zhengzhou Central Hospital Affiliated to Zhengzhou University and School of Nursing and Health, Zhengzhou University, Zhengzhou, Henan, China.

Participants
20 experts from different universities and hospitals in China participated in the study. They all had profound attainments in clinical treatment, nursing and extended care of COPD.

Primary outcome measures
Effective questionnaire response rate, coefficient of expert authority, arithmetic mean, proportion of maximum score, Kendall harmony coefficient, scores of importance, variation coefficient and weight were used to evaluate the quality evaluation indicator system for extended care.

Results
In the two rounds of Delphi expert consultation, the effective questionnaire response rates were both 100%. The coefficients of expert authority were 0.83 and 0.89, respectively. Kendall harmony coefficients were 0.088 and 0.215, respectively. The final formed quality evaluation indicator system for extended care included 3 primary indicators, 10 secondary indicators and 40 tertiary indicators. For each indicator, the variation coefficient was 0.063–0.151 and the weight was 0.001–0.065.

Conclusion
The quality evaluation indicator system for extended care based on mature theoretical basis and scientific method is scientific and reliable. And the weight of each indicator is set reasonably and accurately, which could provide a basis for quality evaluation and continuous quality improvement of extended care.

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