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Network visualization to interpret which healthcare services are central to people living with HIV

Abstract

Aim

To employ network analysis to identify the central healthcare service needs of people living with HIV (PLWH) for integrated care.

Design

Cross-sectional survey.

Methods

A list of healthcare services was identified through literature reviews, expert workshops and validity evaluations by PLWH. A total of 243 PLWH participated at five hospitals and self-reported their need for healthcare services on a four-point Likert scale. Centrality of healthcare service needs was analysed using network analysis.

Results

The mean score for 20 healthcare service needs was 3.53 out of 4. The highest scoring need, “Precaution for interaction between antiretroviral therapy and other drugs,” received a rating of 3.73 but had a centrality of only 0.31. The most central node in the network of healthcare service needs, “Information and coping with opportunistic infections,” had a strength centrality of 1.63 and showed significant relationships with “non-HIV-related medical services (e.g., health check-ups)” and “Regular dental services.” The correlation stability coefficient, which quantifies the stability of centrality, was 0.44 with an acceptable value.

Conclusions

The most central need was information on opportunistic infections that had connections with many nodes in network analysis. By interpreting the relationships between needs, healthcare providers can design interventions with an integrative perspective.

Implications for Patient Care

Network visualization provides dynamic relationships between needs that are unknown from the score scale by presenting them graphically and qualitatively.

Impact

Using network analysis to interpret need assessment offers an integrated nursing perspective. Coping with opportunistic infection is central to connecting the chain of healthcare. This study highlights the multifaceted understanding of patients' needs that nurses gain when they conduct network analysis.

Reporting Method

We adhered to the STROBE checklist.

Patient or Public Contribution

No patient or public contribution.

First clinical evaluation of the safety and efficacy of tarumase for the debridement of venous leg ulcers

Abstract

We report the first clinical evaluation of a new enzymatic wound debridement product containing tarumase in venous leg ulcer patients. As a first-in-human study, this was a prospective, open-label, multi-centre, dose escalation study across five dose cohorts and involving a total of 43 patients treated three times weekly for up to 4 weeks (12 applications). The primary and secondary endpoints of the study were to assess the systemic safety, local tolerability, and early proof of concept both for wound debridement and healing. Results indicated that the tarumase enzyme was well tolerated when applied topically to wounds, with no indications of systemic absorption, no evidence of antibody generation, and no systemic effects on coagulation pathways. Locally, there was no evidence of pain on application, no local itching, no increases in erythema, oedema, exudate or bleeding and only a few treatment emergent adverse events were reported. As the concentration of tarumase was escalated, trends towards faster and improved effectiveness of wound debridement were observed, especially in patients with significant slough at baseline. Trends towards faster rates of healing were also noted based on observations of increased granulation tissue, increased linear healing and reduction in surface area over the 4-week treatment period.

Association between long-term use of calcium channel blockers (CCB) and the risk of breast cancer: a retrospective longitudinal observational study protocol

Por: Ho · C. · Ha · N. T. · Youens · D. · Abhayaratna · W. P. · Bulsara · M. K. · Hughes · J. D. · Mishra · G. · Pearson · S.-A. · Preen · D. B. · Reid · C. M. · Ruiter · R. · Saunders · C. M. · Stricker · B. H. · van Rooij · F. J. A. · Wright · C. · Moorin · R.
Introduction

Calcium channel blockers (CCB), a commonly prescribed antihypertensive (AHT) medicine, may be associated with increased risk of breast cancer. The proposed study aims to examine whether long-term CCB use is associated with the development of breast cancer and to characterise the dose–response nature of any identified association, to inform future hypertension management.

Methods and analysis

The study will use data from 2 of Australia’s largest cohort studies; the Australian Longitudinal Study on Women’s Health, and the 45 and Up Study, combined with the Rotterdam Study. Eligible women will be those with diagnosed hypertension, no history of breast cancer and no prior CCB use at start of follow-up (2004–2009). Cumulative dose-duration exposure to CCB and other AHT medicines will be captured at the earliest date of: the outcome (a diagnosis of invasive breast cancer); a competing risk event (eg, bilateral mastectomy without a diagnosis of breast cancer, death prior to any diagnosis of breast cancer) or end of follow-up (censoring event). Fine and Gray competing risks regression will be used to assess the association between CCB use and development of breast cancer using a generalised propensity score to adjust for baseline covariates. Time-varying covariates related to interaction with health services will also be included in the model. Data will be harmonised across cohorts to achieve identical protocols and a two-step random effects individual patient-level meta-analysis will be used.

Ethics and dissemination

Ethical approval was obtained from the following Human research Ethics Committees: Curtin University (ref No. HRE2022-0335), NSW Population and Health Services Research Ethics Committee (2022/ETH01392/2022.31), ACT Research Ethics and Governance Office approval under National Mutual Acceptance for multijurisdictional data linkage research (2022.STE.00208). Results of the proposed study will be published in high-impact journals and presented at key scientific meetings.

Trial registration number

NCT05972785.

Engaging people with lived experiences on community advisory boards in community-based participatory research: a scoping review protocol

Por: Nelson · G. · Kettaneh · H. · Knox · B. · Purkey · E. · Chan-Nguyen · S. · Jenkins · M. · Bayoumi · I.
Introduction

Community-based participatory research (CBPR) is a collaborative research approach that equally engages researchers and community stakeholders throughout all steps of the research process to facilitate social change and increase research relevance. Community advisory boards (CABs) are a CBPR tool in which individuals with lived experience and community organisations are integrated into the research process and ensure the work aligns with community priorities. We seek to (1) explore the best practices for the recruitment and engagement of people with lived experiences on CABs and (2) identify the scope of literature on minimising power dynamics between organisations and community members with lived experience who work on CABs together.

Methods and analysis

This scoping review will follow the Arksey and O’Malley methodological framework, informed by Levac et al, and will be reported using a PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) diagram. Detailed and robust search strategies have been developed for Embase, Medline and PsychINFO. Grey literature references and reference lists of included articles published between 1 January 1990 and 30 March 2023 will be considered. Two reviewers will independently screen references in two successive stages of title/abstract and full-text screening. Conflicts will be decided by consensus or a third reviewer. Thematic analysis will be applied in three phases: open coding, axial coding and abstraction. Extracted data will be recorded and presented in a tabular format and/or graphical summaries, with a descriptive overview discussing how the research findings relate to the research questions. At this time, a preliminary search of peer-reviewed and grey literature has been conducted. Search results for peer-reviewed literature have been uploaded to Covidence for review and appraisal for relevance.

Ethics and dissemination

Formal ethics approval is not required for this review. Review findings will inform ongoing and future CBPR community advisory board dynamics.

Registration

The protocol has been registered prospectively on the Open Science Framework (https://doi.org/10.17605/OSF.IO/QF5D3)

Multicentre randomised trial of screening with sFlt1/PlGF and planned delivery to prevent pre-eclampsia at term: protocol of the PE37 study

Por: Llurba · E. · Crispi · F. · Crovetto · F. · Youssef · L. · Delgado · J. L. · Puig · I. · Mora · J. · Krofta · L. · Mackova · K. · Martinez-Varea · A. · Tubau · A. · Ruiz · A. · Paya · A. · Prat · M. · Chantraine · F. · Comas · C. · Kajdy · A. · Lopez-Tinajero · M. F. · Figueras · F. · Gratac
Introduction

Pre-eclampsia affects ~5%–7% of pregnancies. Although improved obstetric care has significantly diminished its associated maternal mortality, it remains a leading cause of maternal morbidity and mortality in the world. Term pre-eclampsia accounts for 70% of all cases and a large proportion of maternal–fetal morbidity related to this condition. Unlike in preterm pre-eclampsia, the prediction and prevention of term pre-eclampsia remain unsolved. Previously proposed approaches are based on combined third-trimester screening and/or prophylactic drugs, but these policies are unlikely to be widely implementable in many world settings. Recent evidence shows that the soluble fms-like tyrosine kinase-1 (s-Flt-1) to placental growth factor (PlGF) ratio measured at 35–37 weeks’ gestation predicts term pre-eclampsia with an 80% detection rate. Likewise, recent studies demonstrate that induction of labour beyond 37 weeks is safe and well accepted by women. We hypothesise that a single-step universal screening for term pre-eclampsia based on sFlt1/PlGF ratio at 35–37 weeks followed by planned delivery beyond 37 weeks reduces the prevalence of term pre-eclampsia without increasing the caesarean section rates or worsening the neonatal outcomes.

Methods and analysis

We propose an open-label randomised clinical trial to evaluate the impact of a screening of term pre-eclampsia with the sFlt-1/PlGF ratio followed by planned delivery in asymptomatic nulliparous women at 35–37 weeks. Women will be assigned 1:1 to revealed (sFlt-1/PlGF known to clinicians) versus concealed (unknown) arms. A cut-off of >90th centile is used to define the high risk of subsequent pre-eclampsia and offer planned delivery from 37 weeks. The efficacy variables will be analysed and compared between groups primarily following an intention-to-treat approach, by ORs and their 95% CI. This value will be computed using a Generalised Linear Mixed Model for binary response (study group as fixed effect and the centre as intercept random effect).

Ethics and dissemination

The study is conducted under the principles of Good Clinical Practice. This study was accepted by the Clinical Research Ethics Committee of Hospital Clinic Barcelona on 20 November 2020. Subsequent approval by individual ethical committees and competent authorities was granted. The study results will be published in peer-reviewed journals and disseminated at international conferences.

Trial registration number

NCT04766866.

Kentucky Outreach Service Kiosk (KyOSK) Study protocol: a community-level, controlled quasi-experimental, type 1 hybrid effectiveness study to assess implementation, effectiveness and cost-effectiveness of a community-tailored harm reduction kiosk on HIV,

Por: Young · A. M. · Havens · J. R. · Cooper · H. L. F. · Fallin-Bennett · A. · Fanucchi · L. · Freeman · P. R. · Knudsen · H. · Livingston · M. D. · McCollister · K. E. · Stone · J. · Vickerman · P. · Freeman · E. · Jahangir · T. · Larimore · E. · White · C. R. · Cheatom · C. · Community S
Introduction

Many rural communities bear a disproportionate share of drug-related harms. Innovative harm reduction service models, such as vending machines or kiosks, can expand access to services that reduce drug-related harms. However, few kiosks operate in the USA, and their implementation, impact and cost-effectiveness have not been adequately evaluated in rural settings. This paper describes the Kentucky Outreach Service Kiosk (KyOSK) Study protocol to test the effectiveness, implementation outcomes and cost-effectiveness of a community-tailored, harm reduction kiosk in reducing HIV, hepatitis C and overdose risk in rural Appalachia.

Methods and analysis

KyOSK is a community-level, controlled quasi-experimental, non-randomised trial. KyOSK involves two cohorts of people who use drugs, one in an intervention county (n=425) and one in a control county (n=325). People who are 18 years or older, are community-dwelling residents in the target counties and have used drugs to get high in the past 6 months are eligible. The trial compares the effectiveness of a fixed-site, staffed syringe service programme (standard of care) with the standard of care supplemented with a kiosk. The kiosk will contain various harm reduction supplies accessible to participants upon valid code entry, allowing dispensing data to be linked to participant survey data. The kiosk will include a call-back feature that allows participants to select needed services and receive linkage-to-care services from a peer recovery coach. The cohorts complete follow-up surveys every 6 months for 36 months (three preceding kiosk implementation and four post-implementation). The study will test the effectiveness of the kiosk on reducing risk behaviours associated with overdose, HIV and hepatitis C, as well as implementation outcomes and cost-effectiveness.

Ethics and dissemination

The University of Kentucky Institutional Review Board approved the protocol. Results will be disseminated in academic conferences and peer-reviewed journals, online and print media, and community meetings.

Trial registration number

NCT05657106.

The application of flipped learning to a gross anatomy dissection course

by Eun-Kyung Chung, Heoncheol Yun, Kwang-Il Nam, Young-Suk Cho, Eui-Ryoung Han

We implemented flipped learning for a gross anatomy dissection course and compared its effects on students’ motivation and academic achievement with those of traditional dissection methods. We invited 142 first-year medical students at Chonnam National University Medical School to participate in this study. All participants engaged in traditional dissection methods in the first part of the study and flipped learning in the latter part. Medical students’ motivation to learn anatomy by cadaveric dissection was measured using the ARCS (Attention, Relevance, Confidence, and Satisfaction) model. Thereafter, all students completed a written examination consisting of 96 multiple-choice questions. The students’ mean motivational score regarding attention was significantly higher in association with flipped learning than with traditional learning. However, the students’ mean motivational scores regarding relevance, confidence, and satisfaction were not significantly different between the methods. Additionally, the mean anatomy practice test score was significantly higher in association with flipped learning than with traditional learning. The students’ motivational scores and anatomy practice test scores associated with flipped learning positively correlated with the extent of learning material completion. The students’ responses indicated that flipped learning helped enhance the learning process, improve time management, reduce confusion during practice, and promote independent practice. The application of flipped learning to a cadaveric dissection course increased individual learning motivation, which improved learning activities both in and out of class, as well as academic achievement.

Comparison of the risk of postoperative wound infection in patients with rectal cancer by laparoscopic versus open Hartmann's surgery

Abstract

Traditional Hartmann surgery is used when the patient is in an acute case where it might not be safe to carry out a one-stage intestinal anastomosis. Laparoscopy has been extensively applied in the treatment of large intestine, which can significantly improve both short- and long-term outcomes. While randomized, controlled studies and reviews have shown that laparoscopy is superior to that of open-access colectomy, the impact of Hartmann's surgery on postoperative site infections has not been studied. The purpose of this study is to summarize the existing evidence to show that laparoscopy is better than open operation in the area of injury. Methods The Embase, PubMed and Cochrane Libraries were searched from the moment the database was created until November 2023. For binary results, the odds ratio was estimated, and a weighted average of consecutive results was calculated. Our findings indicate that there is a lower risk for SSIs after laparoscopic approach surgery than an open-access procedure (OR, 0.26; 95% CI, 0.10, 0.69, p = 0.006); Laparoscopy was associated with a reduction in the risk of dying after surgery (OR, 0.50; 95% CI, 0.30, 0.84, p = 0.009); The operation time was not significantly different in open and laparoscope (MD, 12.23; 95% CI, −5.63, 30.09, p = 0.18); laparoscopy was used to lower the incidence of SSI after surgery and to lower the mortality rate after surgery than by open-access surgery. However, the time of operation did not differ significantly among the two methods. However, further controlled trials will need to be carried out to verify the results.

Prevalence and correlates of depression and anxiety symptoms among older adults in Shenzhen, China: a cross-sectional population-based study

Por: Peng · X. · Zhang · S. · You · L. · Hu · W. · Jin · S. · Wang · J.
Objectives

To investigate the prevalence of depression and anxiety symptoms among older adults in an urban district in China, as well as their associated factors.

Design

Cross-sectional study.

Setting

General communities in Shenzhen, Guangdong, China.

Participants

A total of 5372 community-dwelling older adults aged 65 years or older were initially recruited. Ultimately, 5331 participants met the inclusion criteria and were included in this study.

Methods

Participants completed a sociodemographic questionnaire, along with assessments including the Patient Health Questionnaire-9, Generalised Anxiety Scale-7, UCLA Loneliness Simplification Scale, Insomnia Severity Index Scale (ISI), Community Dementia Brief Screening Scale and the 8-item Dementia Screening Questionnaire. Statistical analyses included the Shapiro-Wilk test, independent t-test, Wilcoxon rank test, 2 test and univariate and multivariate linear regression analysis.

Results

The prevalence of depression and anxiety symptoms among older adults in Shenzhen communities was 10.4% and 11.3%, respectively. In multivariate analysis, age (B=–0.01, p

Conclusions

We observed a high prevalence of depression and anxiety symptoms among older adults in this study. The existing welfare system and infrastructure should remain and targeted mental health programmes addressing the identified risk factors should be proposed.

Implementation of rapid genomic sequencing in safety-net neonatal intensive care units: protocol for the VIrtual GenOme CenteR (VIGOR) proof-of-concept study

Por: D'Gama · A. M. · Hills · S. · Douglas · J. · Young · V. · Genetti · C. A. · Wojcik · M. H. · Feldman · H. A. · Yu · T. W. · G Parker · M. · Agrawal · P. B. · VIGOR Network · Agrawal · Allcroft · Bhandari · Cantu · DGama · Douglas · Feldman · Genetti · Hills · Honrubia · Kritzer · Parke
Introduction

Rapid genomic sequencing (rGS) in critically ill infants with suspected genetic disorders has high diagnostic and clinical utility. However, rGS has primarily been available at large referral centres with the resources and expertise to offer state-of-the-art genomic care. Critically ill infants from racial and ethnic minority and/or low-income populations disproportionately receive care in safety-net and/or community settings lacking access to state-of-the-art genomic care, contributing to unacceptable health equity gaps. VIrtual GenOme CenteR is a ‘proof-of-concept’ implementation science study of an innovative delivery model for genomic care in safety-net neonatal intensive care units (NICUs).

Methods and analysis

We developed a virtual genome centre at a referral centre to remotely support safety-net NICU sites predominantly serving racial and ethnic minority and/or low-income populations and have limited to no access to rGS. Neonatal providers at each site receive basic education about genomic medicine from the study team and identify eligible infants. The study team enrols eligible infants (goal n of 250) and their parents and follows families for 12 months. Enrolled infants receive rGS, the study team creates clinical interpretive reports to guide neonatal providers on interpreting results, and neonatal providers return results to families. Data is collected via (1) medical record abstraction, (2) surveys, interviews and focus groups with neonatal providers and (3) surveys and interviews with families. We aim to examine comprehensive implementation outcomes based on the Proctor Implementation Framework using a mixed methods approach.

Ethics and dissemination

This study is approved by the institutional review board of Boston Children’s Hospital (IRB-P00040496) and participating sites. Participating families are required to provide electronic written informed consent and neonatal provider consent is implied through the completion of surveys. The results will be disseminated via peer-reviewed publications and data will be made accessible per National Institutes of Health (NIH) policies.

Trial registration number

NCT05205356/clinicaltrials.gov.

Creating a psychosocial intervention combining growth mindset and implementation intentions (GMII) to reduce alcohol consumption: A mixed method approach

by Sacha Parada, Bérengère Rubio, Elsa Taschini, Xavier Laqueille, Malika El Youbi, Pierre Paris, Bernard Angerville, Alain Dervaux, Jean-François Verlhiac, Eve Legrand

This work aimed at creating a psychosocial intervention based on growth mindset theory and implementation intention strategies, in order to reduce alcohol consumption among users in the general population, and the clinical population of individuals with alcohol use disorder. A mixed method approach was used, combining qualitative and quantitative research methods among both populations. Four focus groups were first conducted to extract arguments in favor of a malleable view of alcohol consumption (study 1A), situations that trigger the desire to drink alcohol, as well as strategies used by people to counteract this need (study 1B). Data were analyzed using reflective thematic analysis in line with the scientific literature on alcohol consumption. The results were used to create a questionnaire scoring the relevance of each argument, situation and strategy (study 2). The 20 best scored arguments, situations and strategies were selected to create the intervention. The created intervention consisted in a popularized scientific article describing alcohol consumption as malleable, including the selected arguments and followed by two internalization exercises. Then, a volitional help sheet included the selected situations and solutions was presented, allowing forming up to three plans. The discussion focused on the added value of the created material compared to pre-existing tools in the literature, and presents plans to test the intervention in a future study.

Exploration of machine learning models for surgical incision healing assessment based on thermal imaging: A feasibility study

Abstract

In this study, we explored the use of thermal imaging technology combined with computer vision techniques for assessing surgical incision healing. We processed 1189 thermal images, annotated by experts to define incision boundaries and healing statuses. Using these images, we developed a machine learning model based on YOLOV8, which automates the recognition of incision areas, lesion segmentation and healing classification. The dataset was divided into training, testing and validation sets in a 7:2:1 ratio. Our results show high accuracy rates in incision location recognition, lesion segmentation and healing classification, indicating the model's effectiveness as a precise and automated diagnostic tool for surgical incision healing assessment. Conclusively, our thermal image-based machine learning model demonstrates excellent performance in wound assessment, paving the way for its clinical application in intelligent and standardized wound management.

Exploring hospital mealtime experiences of older inpatients, caregivers and staff using photovoice methods

Abstract

Aim

To gather and understand the experience of hospital mealtimes from the perspectives of those receiving and delivering mealtime care (older inpatients, caregivers and staff) using photovoice methods to identify touchpoints and themes to inform the co-design of new mealtime interventions.

Methods

This study was undertaken on acute care wards within a single metropolitan hospital in Brisbane, Australia in 2019. Photovoice methods involved a researcher accompanying 21 participants (10 older patients, 5 caregivers, 4 nurses and 2 food service officers) during a mealtime and documenting meaningful elements using photographs and field notes. Photo-elicitation interviews were then undertaken with participants to gain insight into their experience. Data were analysed using inductive thematic analysis, involving a multidisciplinary research team including a consumer.

Results

Themes were identified across the three touchpoints: (1) preparing for the meal (the juggle, the anticipation), (2) delivering/receiving the meal (the rush, the clutter and the wait) and (3) experiencing the meal (the ideal, pulled away and acceptance). Despite a shared understanding of the importance of meals and shared vision of ‘the ideal’ mealtime, generally this was a time of tension, missed cares and dissatisfaction for staff, patients and caregivers. There was stark contrast in some aspects of mealtime experience, with simultaneous experiences of ‘the rush’ (staff) and ‘the wait’ (patients and caregivers). There was an overwhelming sense of acceptance and lack of control over change from all.

Conclusions

This study identified themes during hospital mealtimes which have largely gone unaddressed in the design of mealtime interventions to date. This research may provide a framework to inform the future co-design of mealtime interventions involving patients, caregivers and multidisciplinary staff, centred around these key touchpoints.

Practice Implications

Mealtimes are experienced differently by patients, caregivers, nurses and food service officers across three key touchpoints: preparing for, delivering/receiving and experiencing the meal. Improving mealtime experiences therefore necessitates a collaborative approach, with co-designed mealtime improvement programs that include specific interventions focusing each touchpoint. Our data suggest that improvements could focus on reducing clutter, clarifying mealtime roles and workflows and supporting caregiver involvement.

Impact

What problem did the study address?

Mealtimes are the central mechanism to meet patients' nutritional needs in hospital; however, research consistently shows that many patients do not eat enough to meet their nutritional requirements and that they often do not receive the mealtime assistance they require. Interventions to improve hospital mealtimes have, at best, shown only modest improvements in nutritional intake and mealtime care practices. Gaining deeper insight into the mealtime experience from multiple perspectives may identify new opportunities for improvement.

What were the main findings?

Patients, caregivers and staff have shared ideals of comfort, autonomy and conviviality at mealtimes, but challenges of complex teamwork and re-prioritisation of mealtimes in the face of prevailing power hierarchies make it difficult to achieve this ideal. There are three discrete touchpoints (preparing for, delivering/receiving and experiencing the meal) that require different approaches to improvement. Our data suggests a need to focus improvement on reducing clutter, clarifying mealtime roles and workflows and supporting caregivers.

Where and on whom will the research have an impact?

The research provides a framework for multidisciplinary teams to begin co-designing improvements to mealtime care to benefit patients, caregivers and staff, while also providing a method for researchers to understand other complex care situations in hospital.

Reporting Method

This manuscript is written in adherence with the Standards for Reporting Qualitative Research.

Patient or Public Contribution

Patients and caregivers were involved in the conception and design of the study through their membership of the hospital mealtime reference group. A consumer researcher (GP) was involved in the team to advise on study conduct (i.e. recruitment methods and information), data analysis (i.e. coding transcripts), data interpretation (i.e. review and refinement of themes) and manuscript writing (i.e. review and approval of final manuscript).

A meta‐analysis on the impact of spinal cord stimulation on post‐operative wound healing in patients with multiple sclerosis

Abstract

Spinal cord stimulation (SCS) has emerged as a potential therapeutic tool for various chronic conditions, but its efficacy in post-operative wound healing for multiple sclerosis (MS) patients has not been comprehensively understood. This meta-analysis aimed to evaluate the impact of SCS on post-operative wound healing and scar formation in MS patients. A systematic literature review identified seven studies for inclusion. We focused on wound healing as measured by the redness, edema, ecchymosis, discharge, approximation (REEDA) scale 1 week post-operation and scar formation assessed by the Manchester Scar Scale (MSS) 3 months post-operation. The results demonstrated a significant improvement in wound healing in the SCS group, with a standard mean difference (SMD) of −5.82 (95% confidence interval [CI]: [−7.56, −4.09], p < 0.01) on the REEDA scale. For scar formation, the SCS group showed a notable reduction in MSS scores, with an SMD of −10.06 (95% CI: [−14.53, −5.58], p < 0.01). These findings underscore the potential of SCS as an adjunct therapy in enhancing surgical recovery in MS patients, pointing towards its broader applications in post-operative care.

Rat hair-follicle-associated pluripotent (HAP) stem cells can differentiate into atrial or ventricular cardiomyocytes in culture controlled by specific supplementation

by Nanako Takaoka, Michiko Yamane, Ayami Hasegawa, Koya Obara, Kyoumi Shirai, Ryoichi Aki, Hiroyasu Hatakeyama, Yuko Hamada, Nobuko Arakawa, Manabu Tanaka, Robert M. Hoffman, Yasuyuki Amoh

There has been only limited success to differentiate adult stem cells into cardiomyocyte subtypes. In the present study, we have successfully induced beating atrial and ventricular cardiomyocytes from rat hair-follicle-associated pluripotent (HAP) stem cells, which are adult stem cells located in the bulge area. HAP stem cells differentiated into atrial cardiomyocytes in culture with the combination of isoproterenol, activin A, bone morphogenetic protein 4 (BMP4), basic fibroblast growth factor (bFGF), and cyclosporine A (CSA). HAP stem cells differentiated into ventricular cardiomyocytes in culture with the combination of activin A, BMP4, bFGF, inhibitor of Wnt production-4 (IWP4), and vascular endothelial growth factor (VEGF). Differentiated atrial cardiomyocytes were specifically stained for anti-myosin light chain 2a (MLC2a) antibody. Ventricular cardiomyocytes were specially stained for anti-myosin light chain 2v (MLC2v) antibody. Quantitative Polymerase Chain Reaction (qPCR) showed significant expression of MLC2a in atrial cardiomyocytes and MLC2v in ventricular cardiomyocytes. Both differentiated atrial and ventricular cardiomyocytes showed characteristic waveforms in Ca2+ imaging. Differentiated atrial and ventricular cardiomyocytes formed long myocardial fibers and beat as a functional syncytium, having a structure similar to adult cardiomyocytes. The present results demonstrated that it is possible to induce cardiomyocyte subtypes, atrial and ventricular cardiomyocytes, from HAP stem cells.

Ameliorating impact of coenzyme Q10 on the profile of adipokines, cardiomyopathy, and hematological markers correlated with the glucotoxicity sequelae in diabetic rats

by Yousif Jameel Jbrael, Badraldin Kareem Hamad

Background

In diabetes, high blood glucose induces glucotoxicity, resulting in the further damage of pancreatic beta-cells and then precipitating diabetic complications. This study was aimed to investigate the relationship between glucotoxicity with the level of adipokines, diabetic cardiomyopathy, and hematological markers. Moreover, the study examined the potential modulatory effect of coenzyme Q10 (CoQ10) on the aforementioned markers associated with the sequelae of diabetes mellitus.

Material and methods

Twenty-four male rats were randomly assigned to receive an injection of STZ to induce diabetes (n = 16) or to remain uninduced (n = 8). The hyperglycemic status was induced in fasting rats by single intraperitoneal injection of STZ (45 mg /kg b.w.) dissolved in citrate buffer (pH 4.5). Three days after STZ injection, rats were divided into three groups; Normal control group (A), Diabetic control group (B), and CoQ10- treated diabetic group (C). The group (C) was fed with the basal diet supplemented with 5 g of CoQ10 per kilogram of diet for three weeks after the diabetes induction. After 21 days, the blood and serum samples were taken to conduct biochemical analyses. Blood glucose was determined by Blood Glucose Monitoring System. Adipokines or cytokines were evaluated by ELISA from a serum sample. Cardiac myopathy biomarkers were estimated by UP-Converting Phosphor Immunoassay Analyzer, and hematological parameters were measured by automatic hematology analyzer.

Results

In hyperglycemic rats, the level of fasting blood glucose, and serum level of resistin, omentin, TNF-α, and cardiomyopathy biomarkers significantly increased (P Conclusion

Diabetic rats had higher serum levels of adipokines and cardiomyopathy markers. Among the hematological markers, GRA% and MID% increased while LYM% decreased. The profile of adipokines and cardiomyopathy markers improved when CoQ10 was supplemented. The study suggests that CoQ10 may have a beneficial effect on improving diabetic complications.

Morphological and ultrastructural investigation of the posterior atlanto-occipital membrane: Comparing children with Chiari malformation type I and controls

by Vijay M. Ravindra, Lorraina Robinson, Hailey Jensen, Elena Kurudza, Evan Joyce, Allison Ludwick, Russell Telford, Osama Youssef, Justin Ryan, Robert J. Bollo, Rajiv R. Iyer, John R. W. Kestle, Samuel H. Cheshier, Daniel S. Ikeda, Qinwen Mao, Douglas L. Brockmeyer

Introduction

The fibrous posterior atlanto-occipital membrane (PAOM) at the craniocervical junction is typically removed during decompression surgery for Chiari malformation type I (CM-I); however, its importance and ultrastructural architecture have not been investigated in children. We hypothesized that there are structural differences in the PAOM of patients with CM-I and those without.

Methods

In this prospective study, blinded pathological analysis was performed on PAOM specimens from children who had surgery for CM-I and children who had surgery for posterior fossa tumors (controls). Clinical and radiographic data were collected. Statistical analysis included comparisons between the CM-I and control cohorts and correlations with imaging measures.

Results

A total of 35 children (mean age at surgery 10.7 years; 94.3% white) with viable specimens for evaluation were enrolled: 24 with CM-I and 11 controls. There were no statistical demographic differences between the two cohorts. Four children had a family history of CM-I and five had a syndromic condition. The cohorts had similar measurements of tonsillar descent, syringomyelia, basion to C2, and condylar-to-C2 vertical axis (all p>0.05). The clival-axial angle was lower in patients with CM-I (138.1 vs. 149.3 degrees, p = 0.016). Morphologically, the PAOM demonstrated statistically higher proportions of disorganized architecture in patients with CM-I (75.0% vs. 36.4%, p = 0.012). There were no differences in PAOM fat, elastin, or collagen percentages overall and no differences in imaging or ultrastructural findings between male and female patients. Posterior fossa volume was lower in children with CM-I (163,234 mm3 vs. 218,305 mm3, p Conclusions

In patients with CM-I, the PAOM demonstrates disorganized architecture compared with that of control patients. This likely represents an anatomic adaptation in the presence of CM-I rather than a pathologic contribution.

A meta‐analysis of topical Ketorolac's effect on surgical site wound healing post‐cataract surgery

Por: Ran You · Yu Han

Abstract

This meta-analysis evaluates the impact of topical ketorolac on surgical site wound healing and scar formation after cataract surgery. A thorough literature search, adhering to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, identified eight relevant studies from 2348 articles. The selected studies were analysed for wound healing efficacy, using the redness, edema, ecchymosis, discharge and approximation (REEDA) scale, and scar formation, assessed by the Manchester scar scale (MSS). Results indicated that ketorolac significantly improved wound healing, with lower REEDA scores 1 week post-surgery (I 2 = 97%; Random: standardised mean difference (SMD): −10.93, 95% CI: −13.85 to −8.00, p < 0.01), and reduced scar formation, evidenced by lower MSS scores 3 months post-surgery (I 2 = 74%; Random: SMD: −9.67, 95% CI: −11.03 to −8.30, p < 0.01). The findings suggest that topical ketorolac is beneficial in post-cataract surgery care, enhancing wound healing and reducing scarring.

Randomised, siteless study to compare systematic atrial fibrillation screening using enrichment by a risk prediction model with standard care in a Swedish population aged >= 65 years: CONSIDERING-AF study design

Por: Etminani · F. · Sandgren · E. · Holm · J. · Magnusson · P. · Modica · A. · Moberg · K. · Davidsson · T. · Stalpe · L. · Kiflemariam · S. · Younan · N. · Parikh · P. · Wadhwa · M. · Sundin · A. · Engdahl · J.
Introduction

Atrial fibrillation (AF) is the most common arrhythmia and confers an increased risk of mortality, stroke, heart failure and cognitive decline. There is growing interest in AF screening; however, the most suitable population and device for AF detection remains to be elucidated. Here, we present the design of the CONSIDERING-AF (deteCtiON and Stroke preventIon by moDEl scRreenING for Atrial Fibrillation) study.

Methods and analysis

CONSIDERING-AF is a randomised, controlled, siteless, non-blinded diagnostic superiority trial with four parallel groups and a primary endpoint of identifying AF during a 6-month study period set in Region Halland, Sweden. In each group, 740 individuals aged≥65 years will be included. The primary objective is to compare the intervention of AF screening enrichment using a risk prediction model (RPM), followed by 14 days of a continuous ECG patch, with no intervention (standard care). Primary outcome is defined as the incident AF recorded in the Region Halland Information Database after 6 months as compared with standard care. Secondary endpoints include the difference in incident AF between groups enriched or not by the RPM, with and without an invitation to 14 days of continuous ECG recording, and the proportions of oral anticoagulation treatment in the four groups.

Ethics and dissemination

This study has ethical approval from the Swedish Ethical Review Authority. Results will be published in peer-reviewed international journals.

Trial registration number

NCT05838781.

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