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Ayer — Marzo 4th 2026Tus fuentes RSS

Simulation of phased alerting of community first responders for cardiac arrest

by Pieter L. van den Berg, Shane G. Henderson, Hemeng Li, Bridget Dicker, Caroline J. Jagtenberg

Background

Community First Responders (CFRs) are commonly used for out-of-hospital cardiac arrests, and advanced systems send so-called phased alerts: notifications with built-in time delays. The policy that defines these delays affects both response times and volunteer fatigue.

Methods

We compare alert policies by Monte Carlo Simulation, estimating patient survival, coverage, number of alerts and redundant CFR arrivals. In the simulation, acceptance probabilities and response delays are bootstrapped from 29,307 rows of historical data covering all GoodSAM alerts in New Zealand between 1-12-2017 and 30-11-2020. We simulate distances between the patient and CFRs by assuming that CFRs are located uniformly at random in a 1-km circle around the patient, for different CFR densities. Our simulated CFRs travel with a distance-dependent speed that was estimated by linear regression on observed speeds among those responders in the above-mentioned data set that eventually reached the patient.

Results

The alerting policy has a large impact on the four metrics above, and the best choice depends on volunteer density. For each volunteer density, we are able to identify a policy that improves GoodSAM New Zealand’s current policy on all four metrics. For example, when there are 30 volunteers within 1 km from the patient, sending out alerts to 7 volunteers and replacing each volunteer that rejects by a new one, is expected to save 10 additional lives per year compared to the current policy, without increasing volunteer fatigue. Our results also shed light on polices that would improve one metric while worsening another, for example, when there are 10 volunteers within 1 km from the patient, dispatching them all immediately increases our survival estimate by 11% compared to the current policy, with the downside of also increasing the redundant arrivals by 137%.

Conclusions

Monte Carlo simulation can help CFR system managers identify a good policy before implementing it in practice. We recommend balancing survival and volunteer fatigue, aiming to ultimately further improve a CFR system’s effectiveness.

Prevalence of potentially inappropriate medication prescribing, inappropriate medication use, prescription omission and drug interactions among older adults in Ethiopia: a systematic review and meta-analysis

Por: Yazie · T. S. · Alemu · M. A. · Zewdu · W. S. · Asmare Emiru · Z. · Tarekegn · G. Y. · Meharie · B. G. · Belete · A. M. · Debasu Addisu · Z.
Objective

To determine the prevalence of potentially inappropriate prescribing (PIP), potentially inappropriate medication (PIM), potential prescription omission (PPO), potentially harmful drug–drug interactions (PDDI) and identify associated factors among older Ethiopians.

Design

Systematic review and meta-analysis

Data source

We searched PubMed, HINARI, Scopus and Web of Science databases to identify eligible studies published up to 31 October 2025.

Study selection

Observational studies reported the prevalence of PIP, PIM, PPO and PDDI among older adults from any healthcare settings were screened.

Data extraction and synthesis

Two independent reviewers selected studies, extracted data and assessed the risk of bias. The quality and risk of bias of the studies were assessed using the Newcastle-Ottawa scale and Hoy risk of bias tool, respectively, while the certainty of evidence of outcomes was assessed using Grading of Recommendations, Assessment, Development and Evaluation based on Cochrane recommendations. We used a random-effects model for analyses to estimate the pooled prevalence and associated factors. All data analyses were done using Stata V.17 software.

Main outcomes and measures

The national prevalence of PIP, PIM, PPO and PDDI was estimated as main outcomes. Variations were estimated based on regions, age groups, outcome evaluation tool, disease type and healthcare setting.

Results

The review included 25 studies (n=5662 participants) for PIP or PIM, 14 studies (n=2706 participants) for PDDI and 6 studies (n=1342 participants) for PPO. The pooled prevalence estimate was 41% (95% CI 33% to 48%), I2=96.87% for PIP, 37% (95% CI 31% to 44%), I2=96.33% for PIM, 55% (95% CI 36% to 73%), I2=99.00% for PDDI and 14% (95% CI 6% to 24%), I2=95.07% for PPO. The majority of the studies have very good quality (very good=13, good=1, satisfactory=11 for PIP and PIM; very good=11, satisfactory=3 for PDDI; very good=6 for PPO) and low risk of bias (low risk=18, moderate risk=7 for PIP and PIM; low risk=12, moderate risk=2 for PDDI and low risk=6 for PPO), while all studies for each outcome have low certainty of evidence. Subgroup analyses revealed significant regional and contextual variations. Polypharmacy was significantly associated with PIP (OR=3.72, 95% CI 2.53 to 5.46, p2=69.56%), PIM (OR=4.20, 95% CI 2.91 to 6.06, p2=57.83%) and PDDI (OR=4.51, 95% CI 3.05 to 6.69, p2=0.00%), while hypertension (OR=2.46, 95% CI 1.38 to 4.36, p2=0.00%) was associated with PIP.

Conclusions and relevance

This review found a high prevalence of PIP, PIM, PDDI and PPO among older adults in Ethiopia, with notable heterogeneity across regions. Polypharmacy was associated with PIP, PIM and PDDI, while hypertension showed association with PIP. Despite generally good study quality, the certainty of evidence was low for the included studies due to the cross-sectional design nature, with high heterogeneity. Therefore, these findings should be interpreted cautiously. This study indicates a high burden of inappropriate medication prescribing and its associated factors, underscoring the importance of further robust studies to clarify prescribing practices and associated factors.

PROSPERO registration number

CRD42024556744.

Cross-sectional observational study evaluating social brain health in HIV using a research domain criteria-based approach: a protocol

Por: Vance · D. E. · Brennan-Ing · M. · Lambert · C. C. · Hellemann · G. · Zeng · X. · Lee · J.
Introduction

Some people with HIV (PWH) experience brain changes that affect neurocognition, but little is known about how HIV impacts social cognition or related brain regions. Social cognition, the ability to perceive, understand and respond to social information, is important for maintaining relationships and quality of life. This article provides the protocol for the first comprehensive study examining social brain function in PWH and people without HIV (PWoH). With three aims, this study will: (1) examine neural circuits related to social cognition; (2) examine social cognitive performance across two social cognitive domains and (3) examine the role of social cognition in everyday social functioning.

Methods and analysis

Referred to as Social Brain Health Study in HIV Study, this cross-sectional study will enrol 105 PWH and 105 demographically matched PWoH aged 18–65 years. The study administers a comprehensive assessment battery across two visits within a 2-week period. Visit 1 includes behavioural measures of social cognition (Perceiving Social Cues and Understanding Others), neurocognition and social functioning (social network size and loneliness). Visit 2 involves functional MRI procedures with three social cognitive tasks designed to activate key brain regions (ie, fusiform face area, superior temporal gyrus, temporo-parietal junction, dorsal medial prefrontal cortex).

Ethics and dissemination

This study was funded by the National Institute of Mental Health (MH139613) and approved by the Institutional Review Board of the University of Alabama at Birmingham (IRB-300013394). Data collection is ongoing. The first results are expected to be submitted for publication in 2030. Findings of this study will be published in peer-reviewed journals and presented at local, national and international conferences as well as patient organisations such as AIDS service organisations and community talks.

Use of wearable technology in improving emergency care and health outcomes for patients with urgent health complaints: protocol for a scoping review

Por: Alotaibi · R. · Alghaith · A. · Noehrer · L. H. · Kitchen · G. B. · Body · R.
Introduction

Since the 1970s, telemedicine has transformed significantly, becoming a critical component of modern healthcare delivery. Over time, technological innovation has increasingly emphasised the integration of the human body with digital systems to develop non-invasive methods for monitoring physiological parameters. Among these technologies, wearable sensors demonstrate substantial potential for continuous patient monitoring. These devices can facilitate real-time data collection, enable more rapid clinical decision-making and promote active patient participation in health management. Such capabilities are particularly valuable in emergency contexts, including prehospital care provided by ambulance services and telephone triage systems. Despite the growing interest in wearable health technologies, their integration into emergency medical services (EMS) remains insufficiently explored and warrants further investigation. We aim to map current research, explore the use of wearables in EMS settings and identify gaps in knowledge regarding their use in EMS.

Methods and analysis

This scoping review will follow the Joanna Briggs Institute’s (JBI) methodology for scoping reviews. A systematic search of relevant databases (MEDLINE, EMBASE, Cochrane Library, CINAHL, ProQuest and Web of Science) will be conducted, from inception to March 2026. All types of study designs, including quantitative and qualitative studies, will be considered in this scoping review. The inclusion is limited to studies published in English. Two independent reviewers (RA and AA) will conduct a thorough screening of titles and abstracts against the predefined inclusion criteria. Studies that meet the inclusion criteria will be reviewed in full text. Quality and risk of bias will be assessed using the JBI’s critical appraisal tools for the relevant study types. The findings will be presented using diagrams or tables, supplemented by narrative summaries following the JBI guidelines.

Ethics and dissemination

Ethical approval is not required. The findings of this study will be disseminated via publication in a peer-reviewed journal.

Registration

Open Science Framework (10.17605/OSF.IO/MUEFX).

Assessment of health-related quality of life, cognitive, physical and psychological impairments in critically ill adults after status epilepticus (POSEIDON 2): protocol for a multicentre longitudinal study

Por: Legriel · S. · Bernard · C. · Sboui · G. · Sigaud · F. · Lascarrou · J.-B. · Mayenco-Cardenal · N. · Chelly · J. · Bruel · C. · Mongardon · N. · Marzouk · M. · Quenot · J.-P. · Hugues · R. · Schnell · D. · Beuret · P. · Bailly · P. · Lesieur · O. · Argaud · L. · Chambon · R. · Jacq · G.
Introduction

Status epilepticus (SE) in adults is a serious neurological emergency that can lead to high morbidity and mortality rates. Although functional outcomes are often assessed using general scoring systems, limited data on health-related quality of life (HRQoL) in patients admitted to intensive care units (ICUs) are still limited. Furthermore, comprehensive evaluations of patient-reported physical, cognitive, mental health and psychological outcomes are lacking in this population. POSEIDON 2 aims to assess HRQoL and cognitive, physical and psychological impairments at 3 and 12 months after ICU discharge following SE and quantify caregiver burden.

Methods and analysis

POSEIDON 2 is a prospective, multicentre, longitudinal study conducted in 19 French ICUs. The study combines data from the SE ICTAL Registry with data from patients who survived admission to the ICU for SE, who will be recruited for the study. The study also includes patient-reported outcome (PRO) data collected 3 (M3) and 12 (M12) months after discharge from the ICU using validated instruments. The Zarit scale will be used to measure the burden on caregivers at M3 and M12. The primary endpoint is the prevalence of overall HRQOL impairment at M3 and M12, as defined by dichotomous scores on the physical and mental components of the 36-Item Short Form Health Survey compared with those of the general population. Secondary endpoints include domain-specific impairments, such as cognitive function, dependence, mental health and patient experiences. The sample size has been calculated based on an estimated prevalence of 75% for HRQoL impairment, with a planned sample size of 140 patients.

Ethics and dissemination

The POSEIDON 2 study protocol received ethical approval from the ethics committee ‘Comité de Protection des Personnes Ouest VI’ on 5 October 2023 (#2023-A01223-42). The study is conducted in accordance with the Declaration of Helsinki, Good Clinical Practice and the regulatory requirements of France. Written informed consent is obtained from participants, who are able to decline participation or withdraw from the study at any time. Findings will be disseminated through publication in peer-reviewed journals and presentations at scientific conferences.

Trial registration number

NCT06100978.

ReFIT study (reversing frailty in transplantation): protocol for a longitudinal study to assess clinical and biomedical changes in frailty through kidney transplantation

Por: Payne · T. · Shaw · A. · Hanjani · L. S. · Homes · R. · Giddens · F. · Ravuri · H. G. · Yap · C. X. · Walsh · J. · Kumar · V. · Garton · F. C. · Rhee · H. · Huang · A. · Francis · R. S. · Reid · N. · McAdams-DeMarco · M. · Gordon · E. · Midwinter · M. · Hubbard · R.
Introduction

Losses of functional reserve across multiple physiological systems have been identified in frail patients, yet the exact aetiology of frailty remains unclear. Although strongly associated with chronological age, frailty often develops at a younger age in patients with organ failure. Frailty is prevalent in patients with kidney failure; however, individuals experience improvements in physical frailty measures following kidney transplantation. This makes younger patients with kidney failure a unique population for studying both the accelerated onset of frailty and its reversal. This research project aims to test the hypothesis that frailty secondary to organ failure and age-related frailty are associated with similar molecular and physiological measures.

Methods and analysis

This longitudinal study will recruit 150 patients in three groups. Group A (kidney transplant recipients aged ≥40 years; n=50) and Group B (patients aged ≥40 years active on the kidney transplant waitlist; n=50) will comprise younger adults with frailty from organ failure. Group C (adults aged ≥65 years (or ≥55 years for Aboriginal and Torres Strait Islander patients); n=50) will comprise older community dwellers. The primary outcome is the Frailty Index (FI). Secondary outcomes include the change in FI over time, and at baseline when considering various clinical metadata, immune parameters, kidney function and nutrition intake which will be measured at baseline and 12-month time points. Longitudinal changes in frailty will be analysed using linear mixed models with multiple testing corrections for false discovery rates.

Endocrine profiles and metabolomics, measures of immune function and microcirculatory dysfunction, will be measured by liquid chromatography-mass spectrometry and/or gas chromatography-mass spectrometry. The gut microbiome will be sequenced via shotgun metagenomics (Illumina NextSeq500, 150 bp paired-end, 3Gbp/sample). Circulating cell-free DNA/mitochondrial DNA will be quantified through droplet digital PCR. Microcirculation will be assessed via sublingual dark field videomicroscopy with glycocalyx markers measured by ELISA.

Ethics and dissemination

This study will be conducted with all stipulations of this protocol, and the conditions of the ethics committee approval. Ethical principles have their origin in the Declaration of Helsinki, all Australian and local regulations and in the spirit of the standard of Good Clinical Practice (as defined by the International Conference on Harmonisation). Organs/tissues will be sourced ethically and will not be sourced from executed prisoners or prisoners of conscience or other vulnerable groups.

Ethics approval was received by the Metro South Health Research Ethics Committee (HREC/2023/QMS/95392) and ratified by the University of Queensland.

Results will be disseminated through peer-reviewed publications, academic conferences, participant newsletters and health organisation collaboration.

Protocol for a prospective cohort study for the assessment of sarcopenia in gestational diabetes: the SiGnal-D study

Por: Dardano · A. · Daniele · G. · Göbl · C. S. · Tura · A.
Introduction

Sarcopenia is characterised by loss of muscle mass and strength. Although ageing is the most likely risk factor of sarcopenia, sarcopenia is prevalent even in non-elderly people. Type 2 diabetes (T2D) is a risk factor for sarcopenia, as T2D shares with sarcopenia several aetiological factors. Meanwhile, gestational diabetes mellitus (GDM) is characterised by metabolic alterations that resemble those observed in T2D, including increased insulin resistance (present even in physiologic pregnancies). Hence, GDM presents two major risk factors for sarcopenia, that is, dysglycaemia and insulin resistance. Moreover, the number of pregnancies at age >40 years is increasing, which is in an age range in which sarcopenia prevalence is already not negligible. However, data on the prevalence of sarcopenia prevalence in GDM and its effect on pregnancy outcomes are limited. Thus, this study aims to evaluate the prevalence of sarcopenia in women with GDM (and in pregnant women without GDM), identify risk factors and determine its effect on delivery and maternal and fetal outcomes.

Methods and analysis

For this study, 100 each of women with and without GDM will be recruited. Women will undergo an oral glucose tolerance test within weeks 24–28 for possible GDM diagnosis (in weeks 16–18 for high-risk women). Muscle/physical performance tests will be conducted at weeks 28–32 for possible diagnosis of sarcopenia/presarcopenia. Cognitive function will also be assessed. For all women, information regarding pregnancy progression, along with any complications, will be collected. Collected data will be analysed according to the main objectives of the study: (i) determine the prevalence of sarcopenia/presarcopenia in pregnancy with and without GDM, (ii) identify factors associated with sarcopenia risk, (iii) determine the effect of sarcopenia/presarcopenia on pregnancy outcomes, (iv) explore the relationship between sarcopenia and cognitive function. Therefore, this study will provide information on sarcopenia/presarcopenia prevalence in GDM and, possibly, in pregnancy not complicated by dysglycaemia. Furthermore, the study will provide knowledge on the main factors associated with sarcopenia/presarcopenia in GDM/pregnancy. The identification of such factors will be relevant for an initial guidance for treatments that may prevent sarcopenia in GDM/pregnant women. This will become of even greater interest if sarcopenia/presarcopenia influences pregnancy outcomes, especially in GDM women.

Ethics and dissemination

The study protocol has been approved by the Comitato Etico Regione Toscana - Area Vasta Nord Ovest (CEAVNO) on 25 July 2024 and by the Local Ethics Committee of the Medical University of Vienna on 17 June 2024. Participants’ enrolment began in May 2025. The results of the study will be presented at national and international conferences and in peer-reviewed journals.

Trial registration number

ClinicalTrials.gov Identifier: NCT06876090; Registration Date: 2025-03-14

Predictors of rural medical practice in Aotearoa New Zealand: a national outcomes prospective cohort study

Por: Costello · K. · Nixon · G. · Stokes · T. · Frampton · C. · Lander · J. · Wilkinson · T.
Objectives

Identifying the factors that increase the likelihood of medical graduates choosing rural medical careers is key to addressing the global shortage of rural doctors. Using linked graduate-workforce outcomes data, this study aimed to identify predictors of rural medical practice in Aotearoa New Zealand (NZ).

Design

A national prospective cohort study linking data from the longitudinal Medical School Outcomes Database to workforce location data. Univariate and multivariate analyses were conducted to generate ORs for putative predictors of rural medical career.

Setting and participants

All NZ medical graduates from 2011 to 2019 were followed for a minimum of 3 years.

Results

During the study period, there were a total of 4152 medical graduates nationally. Included in the analysis were 3291 graduates who had linked longitudinal medical school and workforce data, of whom 133 (4%) doctors were classified as having decided on a career in rural medicine. Independent predictors of rural practice included being of rural origin (OR 2.13, 95% CI 1.19 to 3.81, p=0.011), age older than 25 years at entry to medical school (OR 2.88, 95% CI 1.54 to 5.36, p

Conclusions

This is the first national study linking medical school data to rural medical workforce outcomes. It demonstrates that previously known predictors of rural practice intention are borne out with actual career outcomes, and these also hold true at a national level. However, this research highlights that diverse pathways into rural practice are vital, given that urban-origin students and those with no early rural career intention make up a substantial number of the early-career rural medical workforce.

Advice From Patients to Improve Diabetic Foot Ulcer Management and Amputation Prevention

ABSTRACT

Understanding the patient perspective is crucial for enhancing healthcare delivery and outcomes for chronic conditions like diabetic foot ulcers. This qualitative study examined the perspectives of patients with diabetic foot ulcers to inform clinical strategies for both physicians and current patients to enhance care and prevent lower extremity amputations. Fifteen patients with a history of diabetes and diabetic foot ulcers and/or amputations participated in semi-structured interviews which explored their lived experiences and advice for both physicians and fellow patients to improve diabetic foot ulcer related care. Interview transcriptions were analysed to identify recurring themes. Advice for physicians emphasised increasing patient education, initiating preventive foot care at the time of diabetes diagnosis, providing instructions for managing diabetic ulcers early and demonstrating empathetic bedside manner. Advice for fellow patients focused on adopting healthy lifestyle practices, regular foot self-examinations, consistent blood glucose monitoring, medication adherence and seeking prompt medical attention for new or worsening foot lesions. Participants also stressed the importance of routine check-ups with providers to support prevention and management efforts. This qualitative study highlights the value of incorporating patient perspectives to improve our understanding of diabetic foot ulcer onset, care and outcomes and thereby reduce the risk of lower extremity complications.

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Interventions to improve functionality among paediatric patients with oncological diagnosis: a systematic review and meta-analysis protocol

Por: Holanda · K. M. · Vivas Costa · J. · Pereira · W. M. G. · Barbosa · A. S. · Martinez-Silveira · M. · Garcia-Hermoso · A. · Guerra · P. H. · Bezerra · I. N. · Barbosa Filho · V.
Introduction

Cancer is the leading cause of death and morbidity among children and adolescents worldwide. Functionality-based interventions are relevant among children and adolescents with an oncological diagnosis, whence studies summarising evidence on this topic are needed. This systematic review will summarise evidence on the effect of interventions to improve functionality indicators among paediatric patients diagnosed with cancer.

Methods and analysis

This protocol will follow Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA)-Protocols reporting guidelines. The systematic review will be conducted according to the Cochrane Handbook and PRISMA 2020. Studies will be searched in MEDLINE (PubMed), Embase, Web of Science, CENTRAL, LILACS and PEDro. Additional searches will include Google Scholar, reference lists of included studies, relevant reviews and trial registries. Studies will be included if they implement a functionality-based intervention. They must evaluate effects among paediatric patients with an oncological diagnosis. Secondary outcomes will include health-related quality of life. There will be no limits to language or year of publication, and articles published in peer-reviewed journals will be accepted. Only randomised controlled trials will be included. Risk of bias will be assessed using the Cochrane Risk of Bias Tool 2. Two independent reviewers will select studies, extract data and assess risk of bias. A narrative synthesis and meta-analysis will be conducted if studies are clinically and methodologically homogeneous. Statistical heterogeneity will be assessed using Higgins’ inconsistency test (I²). Meta-analysis may estimate combined effects using random-effects and the inverse variance method. The R statistical software will be used. The certainty of evidence will be evaluated for each outcome using the Grading of Recommendations Assessment, Development and Evaluation system.

Ethics and dissemination

This study used data from previously published studies, thus waiving submission to an Ethics Committee. Scientific dissemination strategies will include publication in peer-reviewed journals, conference presentations and workshops for the public.

PROSPERO registration number

CRD42024462833.

Efficacy of sequential denosumab after teriparatide for 6 months compared with denosumab monotherapy in reducing risk of osteoporotic fractures in patients with new fractures: a multicentre randomised controlled trial (STAND study) protocol

Por: Chi · Y. · Zhu · Y. · Yuan · J. · Pang · Q. · Cui · L. · Jiang · Y. · Jiajue · R. · Liu · W. · Wang · O. · Li · M. · Xing · X. · Li · H. · Xie · G. · Wu · Y. · Xia · W.
Introduction

Osteoporosis (OP) is a systemic skeletal disorder that increases fragility and susceptibility to fractures. Despite the availability of teriparatide for the treatment of patients with acute fractures with better efficacy, its long-term daily injection and high cost limit its broader use among a wider patient population, especially for those living in low- and middle-income countries. This study aims to evaluate the efficacy of a novel sequential treatment with teriparatide daily for 6 months followed by denosumab every 6 months for another 18 months, in comparison with denosumab monotherapy every 6 months for 24 months, in reducing the risk of fractures in patients with newly diagnosed osteoporotic fractures. The study will also explore the possible difference between two sequential treatments (shifting to denosumab treatment at 6 or 12 months) in their effect on increasing bone mineral density (BMD).

Methods and analysis

This study is designed as a multicentre, open-label, randomised controlled trial among 2478 patients with newly diagnosed osteoporotic fractures from 58 hospitals across China. Participants will be randomly assigned in a 10:10:1 ratio to three treatment groups: 24 months of denosumab monotherapy, early sequential treatment (teriparatide for 6 months followed by denosumab for 18 months) and late sequential treatment (teriparatide for 12 months followed by denosumab for 12 months). The primary outcome is the incidence of vertebral fractures over 24 months of treatment. Secondary outcomes include changes in BMD at the lumbar spine, total hip and femoral neck, changes in bone turnover markers (β-carboxy-terminal telopeptide of type 1 collagen and procollagen type 1 N-terminal propeptide), treatment adherence and cost-effectiveness. Follow-up assessments are scheduled at 3, 6, 9, 12, 18 and 24 months post-randomisation for primary and secondary outcomes, and biannually afterwards for the primary outcome.

Ethics and dissemination

The study protocol has been registered on ClinicalTrials.gov and has received ethical approval from the Peking Union Medical College Hospital Medical Science Research Ethics Committee (1-22PJ939). The findings will be disseminated through peer-reviewed scientific journals.

Trial registration number

NCT05866029.

Prognostic impact of tumour deposits across N stages in stage III colon cancer: development and validation of a novel N staging system using the SEER database and a Chinese single-centre cohort

Por: Lam · W. · Yang · Z. · Lyu · Z. · Lin · G. · Wu · D.
Objectives

To evaluate the prognostic significance of tumour deposit (TD) across different N stages in patients with stage III colon cancer and to develop and validate a novel N staging system that incorporates TD count to improve prediction of cancer-specific survival (CSS).

Design

Retrospective cohort study based on population-based data and external validation.

Setting

Secondary and tertiary care settings; data from the SEER database, a population-based cancer registry capturing cancer incidence and survival information (USA, 2010–2017); and a single-centre validation cohort from South China (2015–2019).

Participants

A total of 8739 stage III colon cancer patients from the SEER database who underwent curative surgery were included; 1335 (15.3%) had TD. Patients with

Outcome measures

The outcome was cancer-specific survival (CSS). The prognostic impact of tumour deposit (TD) and the comparative performance of the novel N staging system versus the AJCC system were evaluated using the Fine-Gray competing risks model, time-dependent area under the curve (AUC) and Brier score.

Results

TD was independently associated with poorer CSS: 1 TD (SHR=1.23, 95% CI 1.04 to 1.47, p=0.017), 2–3 TDs (SHR=1.36, 95% CI 1.17 to 1.58, p3 TDs (SHR=2.02, 95% CI 1.73 to 2.35, pet al, TDs were converted to metastatic lymph nodes (mLNs) using the following weighting: 1 TD=3 mLNs (N1c), 1 TD=2 mLNs (N1) and 1 TD=1 mLN (N2). The novel N staging system stratified patients as nN1a (1 nLN), nN1b (2–3 nLNs), nN2a (4–6 nLNs) and nN2b (≥7 nLNs). This approach showed improved prognostic accuracy compared with AJCC N staging: 3-year AUC (0.623 vs 0.614) and Brier score (0.151 vs 0.157, p

Conclusions

TD significantly worsens prognosis in stage III colon cancer, particularly in lower N stages. Incorporating TD counts into the N staging system with different weightings based on N stage enhances prognostic accuracy and risk stratification within stage III disease, particularly for the heterogeneous AJC N1c category. This novel staging system provides better prognostic value and more accurate treatment guidance and should be considered for broader clinical use, subject to further (eg, prospective) validation.

Incorporation of social medicine curriculum in academic and community health centres: a scoping review protocol

Por: Cydis · M. · Hudson · E. · Shipper · A. G. · Lane · A. · Salzman · M.
Introduction

In the field of medicine, there has been a growing understanding of the impact of social and economic inequities on patients’ health outcomes. Social medicine was established with the intention of addressing these social and economic drivers of health when caring for patients. Physicians who practise social medicine aim to take an interdisciplinary and interprofessional approach to patient care with an emphasis on the promotion of health equity and patient advocacy. As the effects of social determinants of health (SDOH) on health outcomes have become more widely appreciated, medical professional organisations and accrediting bodies have advocated for formal education on the impact of SDOH in undergraduate and graduate medical curricula. The goal of this scoping review is to examine how undergraduate and graduate medical education programmes in the USA have implemented social medicine concepts into their curricula.

Methods and analysis

The proposed scoping review will be conducted in accordance with the Joanna Briggs Institute methodology for scoping reviews. The review team worked with a medical librarian, who created a unique search for five databases (PubMed, Embase, Cochrane CENTRAL Register of Controlled Trials, ERIC and the Web of Science Core Collection). Additionally, we will conduct a grey literature search that includes medical school and residency programme websites, as well as Association of American Medical Colleges (AAMC), Council of Residency Directors in Emergency Medicine (CORD), Alliance for Academic Internal Medicine (AAIM) and Society for Academic Emergency Medicine (SAEM) conference abstracts. Two independent reviewers will assess all articles for eligibility. Data will be extracted using the Covidence data extraction tool. We will present the results of the extraction in tabular form. Themes identified during the full-text review and data extraction process will be discussed.

Ethics and dissemination

Data will be gathered from publicly accessible sources, so ethics approval is not necessary. The results will be disseminated through a peer-reviewed journal and reported at conferences related to medical education and social medicine.

Trial registration number

This protocol is registered on OSF (https://doi.org/10.17605/OSF.IO/7PZ8U).

Imaging the choroidal microvasculature in intensive and high dependency care unit patients: a pilot study

Por: Cooper · G. M. · Burke · J. · Hamid · C. · Godden · E. · Dhaun · N. · King · S. · MacGillivray · T. · Baillie · K. · Griffith · D. M. · MacCormick · I. J. C.
Objectives

Microcirculatory dysfunction drives the end-organ pathophysiology of circulatory shock but is not reflected within existing clinical indices of perfusion, such as blood pressure. The choroidal vasculature of the retina can be measured non-invasively and we hypothesised that this may reflect dysfunction in other organs. We tested the feasibility of measuring the choroid in intensive care and explored associations between choroidal measurements and clinical parameters.

Design

A pilot study of optical coherence tomography conducted in a sample of general intensive care unit (ICU) patients.

Setting

A tertiary mixed ICU within the UK.

Participants

15 patients were recruited. One patient was excluded following withdrawal of active treatment. 12/14 (86%) of the remaining patients had successful baseline imaging and 6 (40%) of these had follow-up imaging within intensive care. These patients had a mean age of 56.3 years, were 71% (10/14) male and mean Acute Physiology and Chronic Health Evaluation 2 (APACHE2) score on ICU admission was 20.4.

Outcome measures

Choroidal anatomy, including choroidal and suprachoroidal thickness, as well as volumetric analysis of intrachoroidal blood vessels, was assessed using automated image segmentation along with clinical, physiological and biochemical data at ICU admission and after an interval of 12–72 hours. Feasibility and safety data were assessed throughout ICU admission.

Results

Baseline choroidal vascular index and choroidal thickness were positively associated with fluid balance, and negatively with APACHE2 score, haematocrit and albumin content. A measurable suprachoroidal space was seen in nine (75%) patients (range 25.0–110.0 microns) and was inversely associated with heart rate. There was substantial intraindividual variation in choroidal measurements over time. There were no safety concerns.

Conclusions

Measuring the choroid is feasible in patients with Intensive Care Society Level 2 or Level 3 requirements. The suprachoroidal space may be markedly enlarged in these patients. Exploratory associations with systemic variables suggest that the choroid may provide information about the microvascular function of other major organs. Size and change of choroidal measurements may reflect perfusion pressure and vascular leakage.

How public health practitioners in the UK are using parental guidance on talking to children about weight: a qualitative study

Por: Brockman · R. · Gillison · F. · Grey · E. B. · Jago · R. · MacArthur · G. J. · Gutteridge · C. · Langford · R.
Objective

To understand how public health practitioners (PHPs) are using parental guidance on talking to children in their work with parents. In 2021, evidence-based guidance was produced for parents of young children to facilitate these conversations, but it is unclear how this guidance is being promoted to parents or used by PHPs.

Design

Qualitative study, consisting of in-depth, semistructured interviews.

Setting

Local authority, National Health Service or other healthy weight service providers in the UK.

Participants

Participants were PHPs working on children’s healthier lifestyles programmes in the UK as part of the UK’s National Child Measurement Programme (NCMP). Invitations to participate were distributed via the Department of Health and Social Care and regional and national networks.

Results

24 participants were interviewed. Practice varied between organisations with the guidance being used in NCMP letters to parents, in follow-up phone calls with parents and in training NCMP staff and other health or education professionals. Participants valued the evidence-based guidance and its compassionate tone, feeling it gave them and parents, confidence in addressing a sensitive topic. Some felt it was too lengthy for parents with learning disabilities or low literacy levels. Others identified a need for similar guidance for older children. Though helpful, participants acknowledged the guidance was only one small part of a necessary systems-wide approach to promoting healthy weight.

Conclusions

The guidance is a useful tool but needs systematic promotion to increase use and effectiveness. Further work is warranted to develop adapted versions for other populations.

Contribution of contrast-enhanced ultrasound for diagnosis of adnexal torsion (COVARIAN): protocol for a randomised controlled trial

Por: Fijean · A.-L. · Manhertz · D. · Massicot · L. · Lecointre · L. · Mottet · N. · Raimond · E. · Simon · E. · Gabriele · V. · Morel · O. · Beaumont · M. · Hossu · G. · Bertholdt · C.
Introduction

Adnexal torsion is a gynaecological emergency in which prompt diagnosis and management are critical to preserving ovarian function. However, the clinical presentation is often non-specific, and diagnosis primarily relies on pelvic ultrasound, a modality with limited sensitivity that can lead to misdiagnosis and unnecessary surgery. Contrast-enhanced ultrasound (CEUS) has emerged as a promising imaging technique that may enhance diagnostic accuracy by better characterising adnexal vascularisation.

The aim of this study is to assess whether the addition of CEUS to standard diagnostic procedures can reduce the rate of unnecessary emergency surgeries. Specifically, we compare two diagnostic strategies in cases of high clinical suspicion of adnexal torsion: the current standard approach versus an experimental strategy incorporating CEUS. The primary outcome is the rate of inappropriate surgical interventions, defined as emergency surgery performed within 6 hours without intraoperative confirmation of torsion.

Methods and analysis

This is a prospective, open-label, multicentre, randomised (1:1), controlled, superiority trial. A total of 256 women presenting with a high clinical suspicion of adnexal torsion will be enrolled over a period of 36 months. Participants will be randomly assigned to either the standard diagnostic strategy or an experimental strategy that includes CEUS. The primary endpoint is the proportion of emergency surgical procedures (performed within 6 hours of hospital admission) in which adnexal torsion is not confirmed.

Ethics and dissemination

The study was approved by the French Ethics Committee, the CPP (Comité de Protection des Personnes) on 28 October 2024. The results of this study will be published in peer-reviewed journals and presented at relevant national and international conferences. The ethical approval number from the CPP is 6115.

Registration number

NCT06677554; 2024-511720-13-00.

Predictors of unplanned 30-day hospital readmission: a retrospective cohort study in north-east Italy

Por: Sartor · G. · Fusco · M. · Milana · M. · Marcon · E. · Battagello · J. · Zardetto · A. · Ruggieri · M. G. · Grotto · G. · Rigon · L. · Arcara · G. · Conte · P. · Buja · A.
Objective

Unplanned hospital readmissions within 30 days of discharge measure the quality of healthcare. This study aims to identify the characteristics of patients at higher risk of readmission.

Design

Retrospective cohort study.

Setting

North-east Italy (Marca Trevigiana Local Health Authority).

Data source

The study examined a total of 39 467 index admissions from hospital discharges (SDO) in the 890 000-inhabitant area during 2022.

Outcome measure

Readmission rates and 95% CIs were computed by risk factor, age and type of admission (surgical or medical). A logistic mixed-effects model was used to estimate readmission OR, adjusting for potential confounders.

Results

A total of 2197 readmissions occurred within 30 days of the index admission, resulting in an overall rate of 30-day readmissions of 6.7% (CI 6.4% to 7.0%). The median time to readmission was 11 days (IQR 5 to 20). In the multivariate analysis, after adjusting for age and sex, the following clinical conditions were associated with a higher risk of readmission: alcohol-related disease (OR=2.06, CI 1.36 to 3.13), metastatic cancer (OR=1.98, CI 1.57 to 2.50), epilepsy (OR=1.93, CI 1.36 to 2.75), dialysis or end-stage kidney disease (OR=1.92, CI 1.39 to 2.66), chronic obstructive pulmonary disease (OR=1.88, CI 1.49 to 2.36), stoma (OR=1.72, CI 1.22 to 2.44), transplant (OR=1.62, CI 1.03 to 2.55), being bedridden (OR=1.57, CI 1.28 to 1.93), anaemia (OR=1.57, CI 1.35 to 1.83), urinary tract infection (OR=1.54, CI 1.30 to 1.83), pneumonia (OR=1.52, CI 1.31 to 1.75), dementia (OR=1.49, CI 1.24 to 1.79), diabetes (OR=1.37, CI 1.17 to 1.61) and transfusion (OR=1.34, CI 1.03 to 1.73).

Conclusion

Several chronic and acute conditions at index admission significantly increased the risk of readmission. Strengthening transitional care, outpatient services and palliative care could mitigate readmissions.

Mental health impact of the COVID-19 pandemic on frontline healthcare workers in Ethiopia: a scoping review of associated mental health risk and protective factors

Por: Draebel · T. A. · Birhanu · Z. · Lien · L. · Soerensen · J. B. · Andersen · L. S. · Terefe Tucho · G. · Mekonnen · H.
Objectives

The mental health impacts of COVID-19 on frontline healthcare workers have been reported globally; however, there is limited evidence from low-income countries such as Ethiopia. We reviewed the literature to understand how COVID-19 impacted the mental health of frontline healthcare workers, including the associated risk and protective factors.

Design

A scoping review of peer-reviewed research was conducted between 2020–2025 to explore the mental health and well-being of frontline healthcare workers in Ethiopia during COVID-19. The process adhered to the guidelines for data extraction outlined in the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews. Our search identified 35 studies, of which 29 studies were included in the final synthesis.

Data sources

Three online databases, PubMed, Web of Science and PsycInfo, were systematically searched for data.

Eligibility criteria

Studies were considered for inclusion in the review if they focused on mental health conditions and psychosocial well-being among healthcare workers during COVID-19 in Ethiopia. Studies were only included if published in English and excluded if they were conference abstracts, case studies, reviews, commentaries, contained incomplete data or lacked variables of interest.

Data extraction and synthesis

Data extraction was conducted manually by two reviewers by using a data extraction sheet created in Excel.

Results

Most frontline healthcare workers experienced symptoms of insomnia, psychological distress, stress, anxiety, post-traumatic stress disorder and depression during COVID-19. Female frontline healthcare workers, nurses, midwives and laboratory technicians reported higher rates of adverse mental health outcomes. Our results found that being married, living together with a spouse and having a high educational level were risk factors for adverse mental health outcomes.

Conclusion

The mental health and well-being of frontline healthcare workers is at risk during a global health crisis; however, there is a limited understanding of how to protect the mental health of frontline healthcare workers in low-income countries, such as Ethiopia, at such a critical time. Additional research is needed to better inform mental health preparedness interventions for frontline healthcare workers in these contexts, particularly given predictions of another pandemic occurring within the next decade.

Digital patient decision aids for endometriosis management: a scoping review protocol

Por: Pittet · O. · Delvallee · M. · Pluchino · N. · Selby · K. J. · Elwyn · G. · Durand · M.-A.
Introduction

Endometriosis is a chronic, oestrogen-dependent condition with a wide range of symptoms and comorbidities that significantly affect physical, emotional and psychological well-being, as well as quality of life. Women with endometriosis often face complex treatment decisions with no universally accepted gold-standard therapy. Shared decision-making, supported by patient decision aids (PtDAs), can enhance patient knowledge and promote informed preferences and decisions. Digital PtDAs, in particular, offer potential for personalised, interactive and accessible decision support. Their characteristics, development process and evaluation in endometriosis care remain underexplored. The objective of this scoping review is to map the existing literature on digital PtDAs developed for women of reproductive age (18–49) with endometriosis, across a range of healthcare and digital health contexts.

Methods and analysis

This scoping review will follow the Joanna Briggs Institute (JBI) methodology for scoping reviews. A comprehensive three-step search, developed with an information specialist, will be conducted across MEDLINE (PubMed), CINAHL, Embase, Web of Science, Cochrane databases and grey literature sources. Citations will be imported into Rayyan for screening. Two independent reviewers will conduct study selection, data extraction and analysis. Data will be summarised using tables and descriptive content analysis to identify key features, development processes and evaluation methods of digital PtDAs. The review will be reported in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews guidelines.

Ethics and dissemination

This review started off in July 2025, and the anticipated end date is November 2025. We plan to disseminate this research through publications, presentations at relevant national and international conferences and meetings with relevant stakeholders. This scoping review protocol has been registered at Open Science Framework (osf.io/fp86m). As this scoping review will use data from published and publicly available sources, research ethics approval is not required.

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