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Ayer — Marzo 4th 2026Tus fuentes RSS

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.

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Bridging the stroke care gap: development and validation of CaknaStrok Education Package (CEP) for caregivers of stroke survivors in Malaysia

Por: Sidek · N. N. · Kamalakannan · S. · Musa · K. I. · Long Tuan Kechik · T. S. M. · Hamzah · N. · Abd Hamid · R. I. · Darus · D. · Ibrahim · K. A. · Seman · N. · Ahamad Fouzi · L. · Abdul Hamid · F. · Ismail · T. A. T.
Background

Stroke is one of the top causes of disability in Malaysia, yet caregivers have limited access to structured, culturally tailored education to support poststroke care.

Objectives

To develop and validate the CaknaStrok Education Package (CEP), a blended learning intervention comprising a printed guidebook and a trilingual mobile health application for informal stroke caregivers in Malaysia.

Design

Methodological study involving the development and validation of a caregiver education programme guided by the Analyse, Design, Develop, Implement, Evaluate (ADDIE) instructional design framework.

Setting

Development and validation were conducted in Malaysia between January 2022 and December 2023. Both experts and caregivers were recruited from two tertiary hospitals on the East Coast of Malaysia, with caregivers identified from inpatient wards and outpatient clinics at these hospitals.

Participants

Content validation involved 10 multidisciplinary experts. Face validation involved 14 informal stroke caregivers who met eligibility criteria, and all completed the study.

Methods

CEP was developed based on prior needs assessment and expert input. Content validation was undertaken using the Content Validity Index (CVI) and face validation using the Face Validity Index (FVI), both assessed on a four-point Likert scale. Qualitative feedback was also obtained from the participants.

Results

CEP consists of six modules delivered via a printed guidebook and a trilingual app with videos, assessment tools and local resources. Experts rated the content highly valid (Scale-level (S)-CVI/the average method (Ave): 0.97–0.99 across domains). Caregivers reported strong acceptability (S-FVI/Ave: 0.95–0.99). Qualitative feedback from experts and caregivers informed refinements to content clarity, usability and presentation, including improved navigation, consistent language use and enhanced visual design. Suggestions requiring substantial structural changes were documented for future iterations.

Conclusions

The CEP shows strong content and face validity as a blended caregiver education tool. By combining printed and digital formats, CEP addresses cultural and access challenges and provides a scalable model for stroke caregiver education in Malaysia. Further pilot or feasibility studies are warranted to evaluate usability, engagement and implementation in real-world settings prior to effectiveness evaluation.

Coproduction of an occupation-based complex intervention for living well with anxiety and Parkinsons (OBtAIN-PD) using online logic modelling in the UK

Por: Lovegrove · C. · Bannigan · K. · Marsden · J. · Sturkenboom · I.
Background

Anxiety is a common non-motor symptom of Parkinson’s disease (PD). There is no specific pharmacological intervention for people with PD who experience anxiety. Current non-pharmacological treatments have mixed or inconclusive results and there does not appear to be a non-pharmacological intervention for people with PD disease and anxiety that focuses on activity and participation.

Objective

To co-produce an occupation-focused complex intervention to help people with PD live well with anxiety that community-based occupational therapists can deliver.

Design

Six-stage complex intervention development was conducted using online logic modelling and a participatory approach to organise the new intervention’s key inputs, processes and outcomes important to people with PD living with anxiety.

Setting

Data were collected via online logic modelling sessions involving people with Parkinson’s, care partners and occupational therapists across the UK from April 2022 to June 2022.

Participants

34 participants were recruited (people with PD n=14, care partners n=9, occupational therapists n=11) for the online logic modelling sessions.

Results

Resources to support the new intervention (‘inputs’) include adequate resourcing, education for professionals and people with PD, flexibility of delivery methods and goal setting. The intervention’s actions to produce outcomes (‘processes’) should include 1:1 support, lifestyle management, providing meaningful information, collaborative goal setting, therapeutic use of everyday activities, and involvement of friends and families. The intended results (‘outcomes’) should include a reduction in anxiety symptoms, people with PD enjoying more meaningful activities, increased understanding of anxiety and PD, improvement in clinical outcomes and improvement of service-level outcomes. These key aspects were incorporated into an intervention manual, educational material and training video.

Conclusions

We have systematically coproduced a new occupation-focused complex intervention to help people with PD to live well with anxiety. This provides the basis for the next project in which this intervention will be tested for feasibility.

Trial registration number

ISRCTN62762494.

Feasibility and efficacy of virtual reality rehabilitation for upper extremity impairment in ischaemic stroke patients: an open-label, parallel-group, randomised controlled trial

Por: Sylaja · P. N. · PR · S. · Paul · R. · Chakravarthy · S. · Sinha · A. · Bapi · R. S. · Kesavadas · C. · Bharath · R. D. · Sarma · P. S. · Elango · S. · Hafsath · S. · Darshini · D. · F · A. J. A. · Dhasan · A. · Sambath · S. · Amal · M. G. · R S · A. · Akhil · S. · Devan · H. S. · Anjana Mad
Objective

The study evaluated the feasibility and efficacy of a non-immersive virtual reality (VR) system on upper extremity (UE) recovery in ischaemic stroke patients in comparison to a conventional physiotherapy.

Design

An open-label, parallel-group, randomised controlled trial randomly assigned the participants to two groups, VR intervention or conventional physiotherapy.

Setting

Two tertiary stroke care centres in South India participated in the study.

Participants

Sixty first-ever ischaemic stroke patients (1–6 months of stroke onset) having spasticity grades of 1 or 1+ as per Modified Ashworth scale and Brunnstrom recovery stages of 3, 4 or 5 in the UE were included in the intention-to-treat analysis.

Intervention

High-intensity non-immersive VR-based comprehensive rehabilitation gaming system with a duration of 12 weeks (3 days/week) was compared with equally intensive conventional physiotherapy.

Primary and secondary outcome measures

The feasibility outcome was the compliance with the treatment. The primary efficacy outcome was the improvement in the motor function assessed by the Fugl-Meyer assessment (FMA) and Wolf motor function test (WMFT). The secondary outcomes included the performance in activities of daily living by the Barthel index (BI) and the quality of life by the 36-item short form health survey (SF-36).

Results

The treatment compliance was similar in two groups (p=0.19). Both groups improved in motor performance, activities of daily living and quality of life. However, there were no significant differences in the FMA (p=0.58), WMFT (functional ability scale, p=0.33; performance time, p=0.44), BI (p=0.84) and SF-36 (physical, p=0.87; mental, p=0.99) scores between the groups.

Conclusions

The non-immersive VR system was feasible, effective and safe; however, it was not found to be superior to conventional physiotherapy. The trial was stopped early and did not reach its proposed sample size and hence, the findings are to be interpreted cautiously.

Trial registration number

Clinical trial registry India: CTRI/2021/11/038339 (https://ctri.nic.in/Clinicaltrials/pmaindet2.php?EncHid=NTc1OTI=&Enc=&userName=CTRI/2021/11/038339).

Support for Transgender and Nonbinary Individuals Seeking Vaginoplasty (STRIVE) study: protocol for a national randomised pragmatic trial

Por: Sage · L. · Hart · E. · Meyer · N. · Hnilicka · O. · Penkin · A. · Poteat · T. C. · Aguayo-Romero · R. · Comstock · B. A. · STRIVE Publications Committee · Dy · G. W. · Blasdel · Corman · Deutsch · Gallo · Gore · Marsiglio · Sevelius · Solo
Introduction

Transgender and gender-diverse individuals often face significant barriers to accessing gender-affirming care, such as hormones and/or surgery, leading to poorer mental health, lower quality of life, and higher rates of substance use and suicidal ideation. Vaginoplasty, the most commonly sought genital gender-affirming surgery (GGAS), is desired by over half of all trans women but has been performed in only a minority. This is due largely to limited surgeon availability and long wait times. Peer support has been shown to improve health outcomes and reduce stigma in marginalised populations, including trans communities, but has never been studied for efficacy during the perioperative period of GGAS. Building on priorities identified by multi-stakeholder engagement from the Transgender & Non-Binary Surgery Allied Research Collective, the Support for Transgender and Nonbinary Individuals Seeking Vaginoplasty (STRIVE) study aims to evaluate the efficacy of a centralised peer support and education intervention for patients seeking vaginoplasty, addressing a critical gap in perioperative care.

Methods and analysis

The STRIVE Study is a pragmatic, multi-site randomised controlled trial enrolling trans adults seeking full depth vaginoplasty. Participants are randomised to one of two arms; enhanced usual care, or a facilitated group intervention. The primary outcome is coping self-efficacy at 6 months, with a secondary outcome of surgical readiness. Primary analysis uses an intention-to-treat approach with linear mixed effects modelling, adjusting for selected baseline values and site. The feasibility evaluation data collected via qualitative interviews will be analysed thematically.

Ethics and dissemination

Approvals were granted by the primary site’s Institutional Review Board on 10 May 2024 (STUDY00026957). The trial was registered on 24 May 2024. Results will be published in open access journals and made available to community members in plain language formats.

Trial registration number

NCT06436560.

Relationships between alcohol use and dementia: protocol for an observational study in the UK Clinical Practice Research Datalink

Por: Fatih · N. · Bhaskaran · K. · Kwok · A. C. H. · Ebmeier · K. P. · Nichols · T. · Gelernter · J. · Christodoulou · M. D. · Topiwala · A.
Introduction

Alcohol consumption is an increasingly recognised modifiable risk factor for dementia, yet whether it has differential impacts on dementia subtypes and its role in disease progression remains unclear. This study aims to: (1) quantify the association between alcohol intake and incidence of dementia subtypes and (2) examine whether individuals who drink heavily and develop dementia referred to hereafter as ‘alcohol-related’—have poorer post-diagnosis outcomes compared with other dementia cases. Clarifying these relationships will determine whether alcohol selectively increases risk for specific dementia phenotypes or broadly heightens neurodegenerative vulnerability, with implications for prevention, clinical counselling and therapeutic targeting.

Methods and analysis

This population-based cohort study of alcohol and dementia will use linked UK electronic health records from Clinical Practice Research Datalink, Hospital Episode Statistics and Office for National Statistics (ONS). Participants will be eligible if they have available linked data from January 1998, when ONS death registrations became available, until the end of follow-up. Alcohol exposure will be defined through self-reported recorded weekly alcohol units and diagnostic codes for harmful or dependent alcohol use. Primary outcomes including incident all-cause and subtype-specific dementia (eg, Alzheimer’s, vascular, Lewy body, Parkinson’s, frontotemporal) as well as secondary outcomes (ie, mortality, care-home entry and neuropsychiatric symptoms). Key covariates encompassing socio-demographic factors, smoking and relevant comorbidities will be adjusted for. Multivariable Cox proportional hazards and Fine-Gray competing risk models will estimate associations with dementia incidence. Post-diagnosis prognosis will be compared for dementia in individuals with a history of heavy alcohol use (‘alcohol-related’) and dementia in individuals with minimal alcohol exposure (‘non-alcohol-related’) cases using survival and logistic regression models. Multiple testing correction will be applied across dementia subtype comparisons. Alcohol exposure will be modelled continuously and non-linearly using restricted cubic splines and categorically using binary indicators of harmful/dependent use. Missing covariate data will be assessed and addressed using appropriate methods, including multiple imputation and complete-case analysis. Data extraction and analysis are scheduled from October 2025 to October 2026.

Ethics and dissemination

Use of de-identified routine data will proceed under existing Research Ethics Committee and data governance approvals. Findings will be disseminated via open-access peer-reviewed journals, academic conferences and summaries targeted at patient, public and policy audiences. The results of this study will be reported according to the STROBE (Strengthening the Reporting of Observational Studies in Epidemiology) and The REporting of studies Conducted using Observational Routinely-collected health Data (RECORD) guidelines.

Experiences of healthcare providers, survivors and caregivers with hospital-to-home stroke transitional care in Tanzania: a qualitative study

Por: Michael · N. A. · Mselle · L. T. · Bureta · C. A. · Tarimo · E. M. · Cao · Y.
Objective

To explore experiences of healthcare providers, stroke survivors and caregivers on stroke transitional care delivery at a tertiary hospital in Tanzania.

Design

A qualitative descriptive design with a phenomenological approach was used. Colaizzi’s thematic analysis was conducted using Dedoose software to identify significant information that describes the transitional care experiences of the study participants.

Setting

This study was conducted in the internal medicine and outpatient departments of a tertiary hospital in Tanzania.

Participants

15 triads of healthcare providers, stroke survivors and caregivers were purposively recruited to participate in semi-structured in-depth interviews between June and September 2024.

Results

The analysis identified four themes: communication and exchange of information, involvement of patients and caregivers in transitional care, coordination of transitional care and experiences with changing care setting. Effective communication and information exchange among healthcare providers, survivors and caregivers ensured that survivors and their caregivers were well informed about the care process, clinical condition, prognosis and transitional care needs. A collaborative care approach enabled survivors and caregivers to actively participate in care, decision-making and discharge planning during hospital-to-home transition. Coordination of care was equally important during hospital-to-home transition as it provided survivors with home-care instructions and opportunities for follow-up care. However, miscommunication among the healthcare team, insufficient information exchange, inadequate discharge planning, poor social support and lack of care coordination prevented smooth hospital-to-home transition leading to a crisis at home.

Conclusions

The experiences of healthcare providers, patients and caregivers during stroke transitional care in Tanzania highlight achievements and key areas for improvement. Hospital-to-home transition is often characterised by uncertainty and emotional strain, emphasising the need for effective communication, involving patients and caregivers in care, as well as coordinating transitional care to address medical and psychosocial needs of survivors and their caregivers during and after discharge.

Effects of COgNitive Training in Community-dwelling Older Adults at High Risk for demENTia (CONTENT): study protocol of two double-blind, randomised, placebo-controlled trials

Por: Pan · Y. · Ji · M. · Liang · J. · Ma · J. · Zhang · W. · Liu · Y. · Dai · Y. · Gao · D. · Zhang · Y. · Xie · W. · Zheng · F.
Introduction

Dementia contributes to the disease burden worldwide, and people with hypertension or type 2 diabetes are at an elevated risk of developing dementia. It is essential to prevent or delay cognitive decline in people at high risk within the community. Our trials aim to evaluate the effects of adaptive cognitive training on community-dwelling older adults with hypertension or type 2 diabetes but no dementia.

Method and analysis

Two multicentre, double-blind, randomised, placebo-controlled trials, named COgNitive Training in community-dwelling older adults at high risk for demENTia and with Hypertension (CONTENT-Hypertension) and COgNitive Training in community-dwelling older adults at high risk for demENTia and with Diabetes (CONTENT-Diabetes), will be conducted to investigate the effects of adaptive cognitive training on participants aged 60 years or above who have been diagnosed with hypertension or type 2 diabetes but no dementia. Each trial will enrol 120 participants. Participants will be recruited from the local community in Shijingshan and Haidian Districts, Beijing, and allocated to either the intervention or control group using a 1:1 ratio. The intervention group will engage in 12 weeks of adaptive cognitive training, while the control group will receive 12 weeks of placebo cognitive training. A 24-week follow-up assessment will be conducted for all participants to evaluate the persistence of the effects. The primary outcome is the 12-week change in Montreal Cognitive Assessment (MoCA) Basic scores from baseline to the end of the intervention (12 weeks). Secondary outcomes include 6-week and 24-week changes in the MoCA from baseline; 6-week, 12-week and 24-week changes in Trail Making Test-A&B (TMT-A, TMT-B), Digit Symbol Substitution Test, the WHO/University of California at Los Angeles Auditory Verbal Learning Test and Boston Naming Test scores of cognitive functions; 6-week and 12-week changes in Geriatric Depression Scale, Generalised Anxiety Disorder-7 (GAD-7), Pittsburgh Sleep Quality Index and 12-week change in blood pressure (CONTENT-Hypertension) or fasting blood glucose and glycated haemoglobin (CONTENT-Diabetes) from baseline.

Ethics and dissemination

This study will adhere to the ethical principles outlined in the Declaration of Helsinki and comply with international standards for Good Clinical Practice. All participants will sign the informed consent at baseline. This study has been approved by the Ethics Committee of Plastic Surgery Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College (approval numbers: 2023-139 and 2024-162). The findings of the trials will be disseminated through publications in peer-reviewed scientific journals and presented at academic conferences.

Trial registration numbers

NCT06512922 and NCT06524388.

Sleep disturbance and risk of incident incontinence in middle-aged and older Chinese adults: a 4-year national cohort study

Por: Shen · Y. · Zhang · W. · Gao · J. · Shao · S.
Objectives

This study aimed to investigate the longitudinal association between sleep disturbance and the risk of new-onset incontinence in middle-aged and older Chinese adults and to explore whether chronic lung diseases mediate this relationship.

Design

A prospective cohort study based on a nationally representative survey.

Setting

Data were obtained from the China Health and Retirement Longitudinal Study, a national survey of middle-aged and elderly community-dwelling Chinese adults.

Participants

A total of 7098 participants aged ≥50 years who were continent at baseline in 2011 and completed follow-up in 2015 were included in the analysis.

Measures

Sleep disturbance was assessed via self-report and categorised into good versus poor quality. Incident incontinence was defined as a new onset of difficulty in controlling urination or defecation. Multivariable logistic regression models were used to estimate the association between baseline sleep disturbance and incident incontinence, adjusting for sociodemographic, behavioural and health-related covariates. Mediation analysis was conducted to evaluate the indirect role of chronic lung disease in the sleep–incontinence pathway. Subgroup and interaction analyses assessed whether key demographic or health factors influenced the sleep–incontinence association.

Results

Sleep disturbance at baseline was significantly associated with a higher risk of developing incontinence over 4 years (adjusted OR 1.34, p=0.040). This association remained robust across subgroups, particularly among participants aged ≥65 years, rural residents, those with higher education and those with chronic lung disease. Mediation analysis revealed that chronic lung disease partially mediated the relationship between sleep disturbance and incontinence, accounting for 7.59% of the total effect (indirect effect: 0.00104, 95% CI 0.00012 to 0.00170). Subgroup and interaction analyses confirmed the consistency of the findings across various demographic and health strata.

Conclusion

Sleep disturbance was associated with higher odds of incident incontinence among middle-aged and older Chinese adults. Chronic lung disease contributed modestly to this association. These findings underscore the potential importance of sleep health and comorbidity management in continence care for ageing populations.

Stroke Investigation Group in North and Central London (SIGNAL): cohort profile of a prospective large-scale comprehensive stroke registry

Por: Ozkan · H. · Ambler · G. · Nash · P. S. · Browning · S. · Mussa · R. · Leff · A. · Jäger · H. R. · Nachev · P. · Perry · R. · Chan · E. · Simister · R. · Werring · D. J.
Purpose

Large-scale stroke registries can provide critical insights into disease mechanisms, progression and healthcare needs, informing prevention and care. However, few collect detailed demographic, brain imaging, and comprehensive long-term follow-up data. To address this, we established the prospective Stroke Investigation Group in North And central London (SIGNAL) registry in 2017.

Participants

The SIGNAL registry included 3931 adults aged ≥18 years with confirmed acute stroke (cerebral ischaemia or intracerebral haemorrhage (ICH)) admitted to the University College London Hospital hyperacute stroke unit between January 2017 and 2020, drawn from an ethnically diverse North and Central London population (~1.6 million). Baseline data included demographic, clinical, brain imaging and next-of-kin information. Six month follow-up included measures of functional status and non-motor outcomes (anxiety, depression, fatigue, sleep, pain, language, continence, social participation, cognition) via face-to-face, telephone or postal follow-up methods.

Findings to date

The mean age of individuals included in the SIGNAL registry was 72.1 years, and 1806 (45.9%) were female. The ethnic distribution comprised 2365 (60%) white, 649 (16.5%) black and 511 (13%) Asian. Stroke diagnoses included 3371 (85.8%) with cerebral ischaemia and 560 (14.2%) with ICH. On admission, 2240 individuals (57.0%) had a National Institutes of Health Stroke Scale score >4, indicating moderate stroke severity. At hospital discharge, the median functional outcome, measured by the modified Rankin Scale, was 3 (IQR 1–4), indicating moderate disability. At 6 months, functional outcomes measured with mRS were available for 3755 individuals (95.6%) with a median score of 1 (IQR=0–3) and non-motor outcomes were available for 3080 individuals (92.3%). The most prevalent adverse non-motor outcomes were fatigue 1756 (57%), reduced social participation 1694 (55%) and sleep disturbance 1663 (54%).

Future plans

Further analyses of SIGNAL registry data will investigating associations between stroke mechanisms, subtypes and neuroimaging features and 6-month functional status, non-motor outcomes and cognitive impairment. Longer term follow-up of survivors for ~10 years is also planned.

Epidemiology and risk factors of postherpetic neuralgia worldwide: protocol for a systematic review and meta-analysis

Por: Liao · X. · Xu · S. · Wang · Y. · Zheng · B.
Introduction

Postherpetic neuralgia (PHN) is a debilitating complication of herpes zoster (HZ) that significantly impairs quality of life, disrupting sleep, daily activities and work capacity. Globally, PHN represents a major public health challenge, with marked heterogeneity in its epidemiological patterns across different regions and demographic groups. The escalating incidence of both HZ and PHN underscores the urgent need to elucidate modifiable and non-modifiable risk factors, which is critical for implementing targeted prevention strategies and optimising therapeutic interventions. Although previous studies have examined PHN risk factors, there remains a paucity of comprehensive, up-to-date systematic analyses evaluating its global epidemiological trends and associated determinants. This protocol presents the methodology of a planned systematic review to assess an updated global estimate of PHN epidemiology and synthesises critical risk factors associated with PHN prevalence or severity.

Methods and analysis

This systematic review and meta-analysis will be conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. We will search MEDLINE/PubMed, Embase, Web of Science, CENTRAL, PsycINFO, Google Scholar, CNKI, Wanfang and CBM for English/Chinese studies published from inception through April 2025. Eligible studies will include adults (≥18 years) with HZ or PHN that report PHN prevalence/incidence or relevant risk factors (eg, age, vaccination status, acute pain severity, comorbidities). Two reviewers will independently screen records, extract data (including study characteristics, demographics, risk factors and pain metrics) and assess risk of bias using Joanna Briggs Institute tools and ROBINS-I. Random-effects meta-analyses (R V.4.0) will pool PHN prevalence (logit-transformed Wilson scores) and ORs for risk factors, with subgroup analyses by geography, income level, clinical/demographic factors. Heterogeneity (I²≥50%) will trigger meta-regression or narrative synthesis. Sensitivity analyses will address bias robustness.

Ethics and dissemination

Ethics committee approval is not required. The results of the review will be published through an open access journal.

PROSPERO registration number

CRD42024510329.

Chinese neuroimmunological disease (NIDBase) cohort study: cohort profile

Por: Zhang · M. · Han · J. · Xia · J. · Lin · M. · Chen · T. · Ruan · S. · Wang · Q. · Men · Y. · Gao · R. · Zheng · H. · Li · J. · Qi · Y. · Chen · S. · Wang · Y. · Tang · Y. · Li · D. · Yang · X. · Qiu · Z. · Liu · Z. · Dong · H. · Zhao · Y. · Hao · J.
Purpose

The Chinese neuroimmunological disease database (NIDBase) cohort was established to explore genetic and environmental risk factors, clinical features, multi-omics data and prognostic biomarkers. The aim is to enhance our understanding of central nervous system (CNS) demyelinating diseases. Additionally, the establishment of this cohort will address the critical issue of the lack of comprehensive genetic data and biological samples for precision diagnosis and treatment research related to neuroimmunological diseases in China.

Participants

56 hospitals in various regions of China were selected to participate in this study. The patients diagnosed with CNS demyelinating diseases were recruited, including clinically isolated syndrome (CIS), multiple sclerosis (MS), neuromyelitis optica spectrum disease (NMOSD), myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD) and autoimmune glial fibrillary acidic protein astrocytopathy (GFAP-A).

Finding to date

At the time of patient enrolment, the clinical information is designated as baseline data. The collected baseline data include demographic information, disease history, clinical features of each demyelinating event, treatment records, standardised scales, questionnaire assessments and laboratory test results. Furthermore, biological samples, MRI and high-density electroencephalography (hd-EEG) data will be collected at baseline. All patients will be followed up at 3 months and 6 months and annually thereafter. As of December 2024, 3866 patients with CNS demyelinating diseases have been enrolled, including 84 CIS, 282 MOGAD, 1405 MS and 2095 NMOSD. Our findings indicate that CNS demyelinating diseases, particularly NMOSD, are more prevalent in women in China, with significant age differences observed among NMOSD patients compared with those with CIS, MS and MOGAD.

Future plans

In future, all patients in our cohort will be followed up at 3 months and 6 months and then annually. By the end of December 2024, the database has been locked and is now being processed and analysed, while our data continue to be updated and expanded for further analysis. Both prospective and retrospective observations will be included in this study. Subsequent publications will emerge from this multicentre cohort, encompassing genomics, clinical cohort studies, hd-EEG biomarkers, imaging-based radiomics and electrical stimulation therapies.

Trail registration number

NCT06443333.

Treatment of bulbar urethral strictures with Optilume drug-coated balloons in a previously untreated population (FIRST-CARE): protocol for a single-blind multicentre randomised controlled trial

Por: Mahdi · M. B. · Haase · R. N. · Sander · L. · Tuckus · G. · Liltorp · D. L. · Jorgensen · L. · Graugaard-Jensen · C. H. · Weinreich · H. · Pennisi · C. P. · Nielsen · T. K.
Introduction

Minimally invasive endoscopic procedures constitute the cornerstone of first-line treatment for bulbar urethral strictures, although their long-term effectiveness is limited by high recurrence rates. The Optilume drug-coated balloon (DCB) is a novel intervention combining mechanical dilation with localised delivery of paclitaxel to reduce recurrence by inhibiting scar tissue formation. While its efficacy has been demonstrated in patients with recurrent strictures, its potential as a first-line option in treatment-naïve patients remains unexplored. The FIRST-CARE trial aims to assess the efficacy and safety of Optilume DCB compared with standard endoscopic treatment in treatment-naïve patients with bulbar urethral strictures.

Methods and analysis

Design: Two-arm, randomised, single-blind (participant), investigator-initiated, parallel-group, multicentre clinical trial. Patients: The study will enrol 140 adult male patients with treatment-naïve, single bulbar urethral strictures ≤3 cm in length. Interventions: All patients will undergo the assigned procedure under general anaesthesia with 1.5 g intravenous cefuroxime. Optilume group patients will receive ≥5 min balloon dilation with localised paclitaxel delivery. The control group will receive standard endoscopic treatment (eg, direct visual internal urethrotomy, laser or dilatation). In both groups, a 12–14 French Foley catheter will be left in place for 3–5 days. Primary outcome: Freedom from repeat intervention within 12 months of follow-up. Primary analysis: Time-to-event will be defined from the date of intervention to the date a repeat intervention is decided (indicated and planned) due to confirmed recurrence, with censoring at 12 months. Groups will be compared using Kaplan-Meier survival analysis and the log-rank test. Cox regression and modified Poisson regression will be used to estimate HRs and relative risks.

Ethics and dissemination

The trial is approved by the Danish National Committee on Health Research Ethics (2401370) and will be conducted in accordance with the Declaration of Helsinki and principles of Good Clinical Practice. In line with national guidelines, all eligible patients are counselled regarding available treatment options prior to enrolment. Results will be disseminated via peer-reviewed publications and scientific presentations.

Trial registration number

NCT06827210.

Factors influencing participation of patients who had a stroke in rehabilitation shared decision-making: a qualitative meta-synthesis

Por: Zang · S. · Ye · M. · Qi · W. · Wu · Z. · He · M. · Lou · Q. · Cui · Z.
Objective

By adopting the shared decision-making (SDM) model, this study aims to improve treatment adherence and patients’ subjective initiative. It intends to systematically explore the barriers and facilitating conditions for patients who had a stroke to participate in rehabilitation SDM through the analysis and integration of qualitative research methods. The ultimate goal is to provide a basis for optimising the formulation of rehabilitation plans, enhancing the quality of nursing services and improving patients’ medical experience.

Methods

The following databases were searched, with only literatures published in English or Chinese included: Cochrane Library, PubMed, Embase, Scopus, Web of Science, CNKI (China National Knowledge Infrastructure), CBM (Chinese Biomedical Literature Database) and Wanfang Database. The search covered the period from the establishment of each database to 1 March 2025. The quality of the included literatures was evaluated using the Qualitative Research Quality Assessment Tool provided by the Joanna Briggs Institute in 2016, with a focus on factors affecting participation of patients who had a stroke in rehabilitation SDM.

Results

A total of 1502 articles were retrieved in the preliminary search, and 10 were finally included. From these included literatures, 31 findings were extracted. Similar results were categorised and grouped into 10 new categories, which were further integrated into 3 core integrated findings: (1) patient-related factors, including interference from negative emotions, the gap between rehabilitation expectations and reality, the impact of socio-demographic factors and self-efficacy with stage-specific autonomous needs; (2) family-related factors, including family support, the impact of patients’ sense of responsibility to their families on decision choices and trade-offs forced by economic burden; (3) healthcare provider and environmental factors, including paternalistic models undermining autonomy, insufficient information and difficulty in screening hindering decision-making and discontinuity in the rehabilitation system and lack of resources increasing decision-making burden.

Conclusion

Through the meta-synthesis of qualitative studies, this research shows that negative emotions and realistic gaps reduce patients’ participation in decision-making. While family support helps enhance patients’ confidence in decision-making, economic burden affects their decision choices. Additionally, one-way doctor–patient communication, insufficient information support and discontinuity in the rehabilitation service system increase patients’ decision-making burden.

Optimising regional organisation of endovascular thrombectomy for ischaemic stroke reusing a simulation model

Objectives

This study assessed whether a previously developed Monte Carlo simulation model can be reused for evaluating various strategies to minimise time-to-treatment in southwest Netherlands for endovascular thrombectomy (EVT) in patients who had an ischaemic stroke.

Design

Reuse of a previously developed simulation model to simulate various strategies in another region, using prospectively collected data from stroke centres and retrospective data from emergency medical services.

Participants

Data from 509 patients who had an ischaemic stroke (≥18 years) treated with EVT (2014–2018) were used.

Interventions

Input for the simulation model reuse included distributions of observed time delays along the acute stroke pathway. Validation of the baseline models was based on face validity and statistical measures (patient data vs model output) using the Assessment of the Validation Status of Health Economic decision models tool. We simulated strategies for a subregion: interhospital patient transfer by helicopter, transport of the neurointerventionalist to the primary stroke centre (‘drive-the-doctor’), interhospital patient transfer to a thrombectomy-capable stroke centre (TSC) outside the region and prehospital triage using the Rapid Arterial Occlusion Evaluation (RACE) scale.

Primary outcome

Onset-to-groin time was the outcome.

Results

Reuse of the original simulation model was obtained by minimal effort, implying limited adaptation. Compared with the baseline model, interhospital patient transfer by helicopter or to a TSC outside the region and prehospital routing using the RACE scale reduced mean onset-to-groin time by 16, 13 and 39 min, respectively (95% CrI for all: equal to the point estimate). ‘Drive the doctor’ reduced mean onset-to-groin time by 27 (car), 49 (ambulance) or 58 min (helicopter), each with a 95% CrI equal to the point estimate.

Conclusions

The original simulation model can be applied to different regions in the Netherlands. Strategies tested within the subregion resulted in promising results of ‘drive the doctor’ and prehospital patient routing using the RACE scale.

STEM-PD trial protocol: a multi-centre, single-arm, first-in-human, dose-escalation trial, investigating the safety and tolerability of intraputamenal transplantation of human embryonic stem cell-derived dopaminergic cells for Parkinsons disease

Por: Paul · G. · Bjartmarz · H. · Björklund · A. · Cutting · E. · Evans · A. · Harry · B. · Hansson · O. · Kayhanian · S. · Kirkeby · A. · Lao-Kim · N. · Lindvall · O. · Nelander · J. · Piccini · P. · Smith · R. · Ullen · S. · Van Vliet · T. · Widner · H. · Parmar · M. · Barker · R. A.
Introduction

Parkinson’s disease (PD) is a common neurodegenerative disease, which has extensive pathology that critically includes the loss of midbrain dopaminergic neurons. This loss leads to debilitating motor features such as bradykinesia and rigidity, as well as some non-motor symptoms. Intracerebral dopamine cell transplants have been explored for many years as a new approach to treating PD and initially used human fetal ventral mesencephalic tissue with inconsistent results, related in part to major logistical challenges in sourcing enough tissue of the right quality and the limited possibilities for quality control and standardisation. Dopaminergic neurons can now be derived reliably from human stem cell sources, which may overcome some of the challenges associated with fetal tissue transplantations.

Methods and analysis

STEM-PD is a multi-centre, single-arm, dose-escalation, first-in-human advanced therapy investigational medicinal product (ATIMP) trial in Europe using a cell product that consists of dopaminergic neural progenitors derived from the RC17 human embryonic stem cell line. The aim of the study is to assess the safety, tolerability and feasibility of intraputamenal transplantation of this cell product in patients with moderately advanced PD. Eight participants will be recruited from two sites, Skånes University Hospital (Lund, Sweden) and Cambridge University Hospital (Cambridge, UK). The primary outcome of the trial is safety and tolerability, assessed by the number and nature of adverse events and serious adverse events, and the absence of space-occupying lesions on cranial MRI, in the first 12 months following transplantation. Secondary and exploratory outcomes, including clinical measures, changes in anti-Parkinson’s medication and measures of graft survival using positron emission tomography imaging, will be assessed at both 12 and 36 months post-grafting.

Ethics and dissemination

Ethical approval was obtained from the Swedish Ethical Review Authority (EPM dnr 2021-06945-01) and South Central - Oxford A Research Ethics Committee (reference 23/SC/0243). Clinical Trial Authorisation was given by the Swedish Medical Products Agency (Dnr: 5.1-2022-57953) and the Medicines and Healthcare products Regulatory Agency for clinical trials authorisation (reference CTA 40773/0001/001-0001). Authorisation for transfer to Clinical Trial Regulation (EU) 536/2014 was given by the Swedish Medical Products Agency (Dnr: 5.1.1-2024-100773). Potential participants will receive verbal and written information about the trial and written informed consent will be obtained prior to enrolment. A lay summary of the results of the trial will be uploaded to the trial website which is publicly accessible. Trial results will be published in peer-reviewed journals.

Trial registration numbers

NCT05635409.

Evaluating multivariable prediction models for Parkinsons disease prognosis: a scoping review protocol

Por: Eickholt · L. · Super · M. · Aamodt · W.
Introduction

Parkinson’s disease (PD) is a neurodegenerative disorder characterised by heterogeneous motor symptoms, non-motor symptoms and rates of disease progression; phenotype and prognosis vary by individual. Although researchers have attempted to predict clinical outcomes using biomarkers and other variables, there are limited data on the development, validation and clinical utility of multivariable prediction models for individual prognostication in PD. In this protocol, we will develop a method for identifying, reviewing and appraising existing PD prognostic models in order to summarise the current literature, identify knowledge gaps and inform future research.

Methods and analysis

This scoping review will be guided by the methodological principles outlined in the Preferred Reporting Items for Systematic Review and Meta-Analysis extension for Scoping Reviews. We will include all multivariable models that predict disease progression in individuals with PD using traditional statistical methods or machine learning. We will exclude models that only report performance measures for one variable (ie, univariable models) or only provide effect estimates (eg, OR, HR). A detailed search of peer-reviewed research publications will be performed through 2025 using the following electronic databases: PubMed, EMBASE, Web of Science and Scopus. Article data will be extracted using Covidence. Two independent reviewers will screen articles by title and abstract for relevance, and a third reviewer will resolve any discrepancies. The remaining full-text articles will also be screened by two independent reviewers, and a third reviewer will resolve any discrepancies. Results from multivariable prediction models meeting inclusion criteria will be summarised using narrative synthesis and organised by clinical outcome. Models will also be appraised using Transparent Reporting of a multivariable prediction model for Individual Prognosis Or Diagnosis + Artificial Intelligence (TRIPOD+AI) and Prediction model Risk Of Bias ASsessment Tool (PROBAST) guidelines to identify deficiencies and areas of future study.

Ethics and dissemination

Ethical approval is not required for this scoping review. Findings will help clinicians make evidence-based decisions to improve prognostication in PD. Findings can also be used to inform the development and validation of additional multivariable clinical prediction models in PD. The results of this scoping review will be disseminated through peer-reviewed publications, research reports and presentations at relevant conferences.

Optimisation of oral anticoagulation for stroke prevention: a scoping review of factors influencing implementation

Por: Weldon · J. C. · Bray · E. P. · Gibson · J. · Bangee · M. · Chesworth · B. · Doherty · A. · Hirst · Y. · Lane · D. · Harris · C. · Patel · A. S. · Watkins · C.
Background

For people whose stroke risk would be reduced by taking a long-term oral anticoagulant (OAC), it is important to implement effective strategies to support medication initiation, adherence and persistence. To do this, a better understanding of the factors associated with implementation of interventions to optimise OAC management is needed.

Objectives

This scoping review aimed to summarise the evidence-based characteristics associated with implementing interventions designed to optimise long-term OAC adherence.

Eligibility criteria

Primary research (published post-2000) evaluating any intervention designed to optimise implementation of long-term OAC for stroke prevention by way of change in OAC services, staff or patient behaviour.

Sources of evidence

Five databases (MEDLINE, Embase, Cumulative Index to Nursing and Allied Health Literature (CINAHL), PsycInfo, Cochrane Library) were searched from 1 January 2000 to 4 August 2023 using a combination of terms relating to population, intervention and study design.

Charting methods

Titles/abstracts were screened by at least one reviewer. Data from each full text were abstracted (with 20% double-checked for accuracy) and its implementation content reviewed, guided by the Expert Recommendations for Implementing Change strategies.

Results

216 studies were included, with varying descriptive reporting of implementation strategies, and only 61 (28%) self-identifying as an implementation study. The median number of implementation strategies used was three, with recently published studies (2015 onwards), those including patients receiving either direct OACs (DOACs) or vitamin K antagonists (VKAs) and those including multiple intervention targets (service, staff or patients) associated with using more implementation strategies. ‘Train and educate stakeholders’ strategies were the most commonly used, and ‘Adapt and tailor to the context’ strategies were the least used by included studies. Conversely, self-defined implementation studies were less likely to use ‘Train and educate stakeholders’ strategies, although they were positively associated with use of ‘Adapt and tailor to the context’. ‘Use evaluative & iterative’ strategies were used more frequently in studies where patients used either VKAs or DOACs, or were published more recently.

Conclusions

Studies need to self-define as implementation studies, improve implementation strategy reporting and be transparently registered, alongside conducting process evaluations or more richly describing implementation processes. Future research could explore why some implementation strategies are used more than others and whether aligning strategy clusters with intervention targets results in clinically significant differences in patient care.

Effectiveness of focal muscle vibrations in improving sensorimotor performance, mobility and strength in spinal cord injury population: a systematic review

Por: Ashfaque · M. · Pujari · A. N. · Niazi · I. K. · Amjad · I. · Haavik · H. · Farmer · S. F.
Objective

Spinal cord injury (SCI) results in debilitating sensory, functional deficits and paralysis requiring neurorehabilitation solutions. In this regard, focal muscle vibration (FMV) is an emerging neuro-rehabilitation tool that uses mechanical vibration on muscles/tendons to stimulate underlying nerves and consequently modulate neural pathways. We conducted a systematic review to understand the exact effectiveness of FMVs on the sensorimotor function and mobility/strength in the SCI population.

Design

Systematic review using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) approach.

Data sources

PEDro, Springer, PubMed, Science Direct, Cochrane Library and Google Scholar were searched through 15 February 2025.

Eligibility criteria for selecting studies

We included studies adhering to the following population–intervention–comparison–outcomes (PICO) elements. Population: SCI, intervention: FMV, comparison: unexposed controls, outcome: either of sensorimotor function or mobility and strength.

Data extraction and synthesis

Two independent reviewers used standardised methods to search, screen and code included studies. Risk of bias was assessed using the Risk Of Bias In Non-randomised Studies - of Interventions (ROBINS-I) scale. Findings were summarised and a narrative synthesis is provided.

Results

25 studies were included. 9 studies used FMV in the upper limb and 14 in the lower limb. The analysis includes 427 patients with SCI, with a focus on male, chronic SCI cases and a prevalence of North American studies.

Conclusion

Our systematic review of 25 studies, with 21 (84%) reporting positive outcomes, suggests that FMV may improve sensory perception, motor function, mobility and strength in individuals with SCIs, with benefits observed in both limbs. However, substantial heterogeneity in FMV parameters, study designs, participant characteristics and the high prevalence of serious/critical risk of bias (13/25 studies, 52%) limit definitive conclusions. Further research with optimised protocols, larger sample sizes and longitudinal designs is needed to confirm efficacy and establish clinical guidelines.

Using virtual twin-based AI models to detect atrial fibrillation and improve stroke outcomes [TAILOR]: a multicentre prospective cohort study

Introduction

Atrial fibrillation (AF) is the leading cause of cardioembolic stroke and is associated with increased stroke severity and fatality. Early identification of AF is essential for adequate secondary prevention but remains challenging due to its often asymptomatic or paroxysmal occurrence. Artificial intelligence (AI) offers new possibilities by integrating biomarkers, clinical phenotypes, established risk factors and imaging features to define a personalised ‘digital twin’ model. The TAILOR study aims to (1) examine prospective detection of AF using monitoring devices, (2) investigate novel prognostic MRI markers in patients with an AF-related stroke (AFRS) and (3) validate AI-based models for outcome prediction in AFRS.

Methods and analysis

This prospective multicentre observational cohort study includes patients aged 40 years and above, with neuroimaging-confirmed diagnosis of ischaemic stroke, recruited from two sites: Hospital del Mar Barcelona (Spain) and Radboud University Medical Centre (The Netherlands). For the first sub-study (n=300), patients will undergo clinical assessment at baseline, 3 months and 12 months, and patch-based or Holter cardiac monitoring. The second sub-study (n=200) involves repeated brain MRI and cognitive examination after AFRS. Finally, AI-driven ‘digital twin’ models developed on retrospective TARGET datasets will be prospectively evaluated in TAILOR using temporal and centre-stratified analyses for advanced predictive tools for AF and AFRS outcomes.

Ethics and dissemination

The TAILOR study was approved by local ethics boards in Barcelona (CPMP/ICH/135/95) and Medical Research Ethics Committee Oost-Nederland (NL86346.091.24). Patients will be included after providing informed consent. Study results will be presented in peer-reviewed journals and at global conferences.

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