Conectar
To synthesize the literature on the experiences of patients, families and healthcare professionals with video calls during hospital admission. Second, to investigate facilitators and barriers of implementation of video calls in hospital wards.
Scoping review.
PubMed, CINAHL and Google Scholar were searched for relevant publications in the period between 2011 and 2023. Publications were selected if they focused on experiences of patients, families or healthcare professionals with video calls between patients and their families; or between families of hospitalized patients and healthcare professionals. Quantitative and qualitative data were summarized in data charting forms.
Forty-three studies were included. Patients and families were satisfied with video calls as it facilitated daily communication. Family members felt more engaged and felt they could provide support to their loved ones during admission. Healthcare professionals experienced video calls as an effective way to communicate when in-person visits were not allowed. However, they felt that video calls were emotionally difficult as it was hard to provide support at distance and to use communication skills effectively. Assigning local champions and training of healthcare professionals were identified as facilitators for implementation. Technical issues and increased workload were mentioned as main barriers.
Patients, families and healthcare professionals consider video calls as a good alternative when in-person visits are not allowed. Healthcare professionals experience more hesitation towards video calls during admission, as it increases perceived workload. In addition, they are uncertain whether video calls are as effective as in-person conservations.
When implementing video calls in hospital wards, policymakers and healthcare professionals should select strategies that address the positive aspects of family involvement at distance and the use of digital communication skills.
No patient or public contribution.
Childhood obesity is an escalating crisis in the United States. Health policy may impact this epidemic which disproportionally affects underserved populations.
The aim was to use the reach, effectiveness, adoption, implementation, and maintenance (RE-AIM) framework to assess health policy impact on preventing or treating school-aged children (5 > 18 years) with obesity in underserved populations.
A scoping review of 842 articles was conducted. Twenty-four articles met the inclusion criteria and underwent data extraction.
Twelve studies included subgroup analysis, with four suggesting an impact of policy on at-risk groups. None of the 24 studies fully applied the RE-AIM framework. Policies positively impacted childhood obesity in 12 studies across the sample.
Our review revealed inconsistent evidence for the effectiveness of policy on childhood obesity, perhaps due to the lack of focus on the social determinants of health. In addition, many studies did not evaluate the outcomes for underserved populations. Therefore, we propose more attention to social determinants in future legislation and evaluation of policy effectiveness on underserved populations. Findings identify an urgent need for the design, implementation, and evaluation of policies specifically directed to address the inequities of racism, social injustices, and social determinants of health that impact childhood obesity in the United States. Future work needs to identify who was reached by the policy, who benefitted from the policy, and how policies were implemented to address obesity-related health disparities. Nurses should advocate for the evaluation of childhood obesity policies, particularly in underserved populations, to determine effectiveness. Nurses, particularly those trained in population and community health and research, should advocate for policy research that considers inequities rather than controls for these variables. Multi-layered interventions can then be tailored to sub-populations and evaluated more effectively.
Despite the high number of operations and surgical advancement, rehabilitation after rotator cuff repair has not progressed for over 20 years. The traditional cautious approach might be contributing to suboptimal outcomes. Our aim is to assess whether individualised (early) patient-directed rehabilitation results in less shoulder pain and disability at 12 weeks after surgical repair of full-thickness tears of the rotator cuff compared with current standard (delayed) rehabilitation.
The rehabilitation after rotator cuff repair (RaCeR 2) study is a pragmatic multicentre, open-label, randomised controlled trial with internal pilot phase. It has a parallel group design with 1:1 allocation ratio, full health economic evaluation and quintet recruitment intervention. Adults awaiting arthroscopic surgical repair of a full-thickness tear are eligible to participate. On completion of surgery, 638 participants will be randomised. The intervention (individualised early patient-directed rehabilitation) includes advice to the patient to remove their sling as soon as they feel able, gradually begin using their arm as they feel able and a specific exercise programme. Sling removal and movement is progressed by the patient over time according to agreed goals and within their own pain and tolerance. The comparator (standard rehabilitation) includes advice to the patient to wear the sling for at least 4 weeks and only to remove while eating, washing, dressing or performing specific exercises. Progression is according to specific timeframes rather than as the patient feels able. The primary outcome measure is the Shoulder Pain and Disability Index total score at 12-week postrandomisation. The trial timeline is 56 months in total, from September 2022.
Globally, guideline-recommended antenatal care for smoking cessation is not routinely delivered by antenatal care providers. Implementation strategies have been shown to improve the delivery of clinical practices across a variety of clinical services but there is an absence of evidence in applying such strategies to support improvements to antenatal care for smoking cessation in pregnancy. This study aims to determine the effectiveness and cost effectiveness of implementation strategies in increasing the routine provision of recommended antenatal care for smoking cessation in public maternity services.
A non-randomised stepped-wedge cluster-controlled trial will be conducted in maternity services across three health sectors in New South Wales, Australia. Implementation strategies including guidelines and procedures, reminders and prompts, leadership support, champions, training and monitoring and feedback will be delivered sequentially to each sector over 4 months. Primary outcome measures will be the proportion of: (1) pregnant women who report receiving a carbon monoxide breath test; (2) smokers or recent quitters who report receiving quit/relapse advice; and (3) smokers who report offer of help to quit smoking (Quitline referral or nicotine replacement therapy). Outcomes will be measured via cross-sectional telephone surveys with a random sample of women who attend antenatal appointments each week. Economic analyses will be undertaken to assess the cost effectiveness of the implementation intervention. Process measures including acceptability, adoption, fidelity and reach will be reported.
Ethics approval was obtained through the Hunter New England Human Research Ethics Committee (16/11/16/4.07; 16/10/19/5.15) and the Aboriginal Health and Medical Research Council (1236/16). Trial findings will be disseminated to health policy-makers and health services to inform best practice processes for effective guideline implementation. Findings will also be disseminated at scientific conferences and in peer-reviewed journals.
Australian New Zealand Clinical Trials Registry—ACTRN12622001010785.
Preoperative anxiety and depression symptoms among older surgical patients are associated with poor postoperative outcomes, yet evidence-based interventions for anxiety and depression have not been applied within this setting. We present a protocol for randomised controlled trials (RCTs) in three surgical cohorts: cardiac, oncological and orthopaedic, investigating whether a perioperative mental health intervention, with psychological and pharmacological components, reduces perioperative symptoms of depression and anxiety in older surgical patients.
Adults ≥60 years undergoing cardiac, orthopaedic or oncological surgery will be enrolled in one of three-linked type 1 hybrid effectiveness/implementation RCTs that will be conducted in tandem with similar methods. In each trial, 100 participants will be randomised to a remotely delivered perioperative behavioural treatment incorporating principles of behavioural activation, compassion and care coordination, and medication optimisation, or enhanced usual care with mental health-related resources for this population. The primary outcome is change in depression and anxiety symptoms assessed with the Patient Health Questionnaire-Anxiety Depression Scale from baseline to 3 months post surgery. Other outcomes include quality of life, delirium, length of stay, falls, rehospitalisation, pain and implementation outcomes, including study and intervention reach, acceptability, feasibility and appropriateness, and patient experience with the intervention.
The trials have received ethics approval from the Washington University School of Medicine Institutional Review Board. Informed consent is required for participation in the trials. The results will be submitted for publication in peer-reviewed journals, presented at clinical research conferences and disseminated via the Center for Perioperative Mental Health website.
NCT05575128,
To explore and compare the didactic approaches to practical skills learning at simulation centres in Scandinavian universities and university colleges.
Academic simulation centres are an important arena for learning practical nursing skills which are essential to ensure competent performance regarding patient safety and quality of care. Knowledge of didactic approaches to enhance learning is essential in promoting the provision and retention of students' practical nursing skills. However, research on didactical approaches to practical nursing skills learning is lacking.
A qualitative comparative design was used.
During November and December 2019, interviews were conducted with a total of 37 simulation centre directors or assistant directors, each of whom possessed in-depth knowledge of practical skills in teaching and learning. They represented bachelor nursing education in Denmark, Norway and Sweden. A qualitative deductive content analysis was conducted.
The results revealed all five predetermined didactical components derived from the didactical relationship model. Twenty-two corresponding categories that described a variation in didactic approaches to practical skills learning in Scandinavian nursing simulation centres were identified. The didactical components of Learning process revealed mostly similarities, Setting mostly differences and Assessment showed only differences in didactic approaches.
Although various didactic approaches were described across the countries, no common approach was found. Nursing educational institutions are encouraged to cooperate in developing a shared understanding of how didactic approaches can enhance practical skills learning.
Cross-country comparisons of practical nursing skills learning in Scandinavian countries highlight the importance of educator awareness concerning the impact diverse didactic approaches may have on competent performance in nursing education. Competent performance is pivotal for ensuring patient safety and the provision of high-quality care.
No Patient or Public Contribution.
This study followed the Consolidated Criteria for Reporting Qualitative Research reporting guidelines.
People with aphasia following stroke experience disproportionally poor outcomes, yet there is no comprehensive approach to measuring the quality of aphasia services. The Meaningful Evaluation of Aphasia SeRvicES (MEASuRES) minimum dataset was developed in partnership with people with lived experience of aphasia, clinicians and researchers to address this gap. It comprises sociodemographic characteristics, quality indicators, treatment descriptors and outcome measurement instruments. We present a protocol to pilot the MEASuRES minimum dataset in clinical practice, describe the factors that hinder or support implementation and determine meaningful thresholds of clinical change for core outcome measurement instruments.
This research aims to deliver a comprehensive quality assessment toolkit for poststroke aphasia services in four studies. A multicentre pilot study (study 1) will test the administration of the MEASuRES minimum dataset within five Australian health services. An embedded mixed-methods process evaluation (study 2) will evaluate the performance of the minimum dataset and explore its clinical applicability. A consensus study (study 3) will establish consumer-informed thresholds of meaningful change on core aphasia outcome constructs, which will then be used to establish minimal important change values for corresponding core outcome measurement instruments (study 4).
Studies 1 and 2 have been registered with the Australian and New Zealand Clinical Trial Registry (ACTRN12623001313628). Ethics approval has been obtained from the Royal Brisbane and Women’s Hospital (HREC/2023/MNHB/95293) and The University of Queensland (2022/HE001946 and 2023/HE001175). Study findings will be disseminated through peer-reviewed publications, conference presentations and engagement with relevant stakeholders including healthcare providers, policy-makers, stroke and rehabilitation audit and clinical quality registry custodians, consumer support organisations, and individuals with aphasia and their families.
by Clemens Brunner, Philip Schadenbauer, Nele Schröder, Roland H. Grabner, Stephan E. Vogel
Determining if a sequence of numbers is ordered or not is one of the fundamental aspects of numerical processing linked to concurrent and future arithmetic skills. While some studies have explored the neural underpinnings of order processing using functional magnetic resonance imaging, our understanding of electrophysiological correlates is comparatively limited. To address this gap, we used a three-item symbolic numerical order verification task (with Arabic numerals from 1 to 9) to study event-related potentials (ERPs) in 73 adult participants in an exploratory approach. We presented three-item sequences and manipulated their order (ordered vs. unordered) as well as their inter-item numerical distance (one vs. two). Participants had to determine if a presented sequence was ordered or not. They also completed a speeded arithmetic fluency test, which measured their arithmetic skills. Our results revealed a significant mean amplitude difference in the grand average ERP waveform between ordered and unordered sequences in a time window of 500–750 ms at left anterior-frontal, left parietal, and central electrodes. We also identified distance-related amplitude differences for both ordered and unordered sequences. While unordered sequences showed an effect in the time window of 500–750 ms at electrode clusters around anterior-frontal and right-frontal regions, ordered sequences differed in an earlier time window (190–275 ms) in frontal and right parieto-occipital regions. Only the mean amplitude difference between ordered and unordered sequences showed an association with arithmetic fluency at the left anterior-frontal electrode. While the earlier time window for ordered sequences is consistent with a more automated and efficient processing of ordered sequential items, distance-related differences in unordered sequences occur later in time.This protocol describes the myTBI study which aims to: (1) develop an online psychoeducation platform for people with traumatic brain injury (TBI), their family members/caregivers, and healthcare staff to improve psychosocial adjustment to TBI across different phases of injury (acute, postacute, and chronic), and (2) undertake an evaluation of efficacy, acceptability, and feasibility.
A three-stage mixed-methods research design will be used. The study will be undertaken across four postacute community-based neurorehabilitation and disability support services in Western Australia. Stage 1 (interviews and surveys) will use consumer-driven qualitative methodology to: (1) understand the recovery experiences and psychosocial challenges of people with TBI over key stages (acute, postacute, and chronic), and (2) identify required areas of psychosocial support to inform the psychoeducation platform development. Stage 2 (development) will use a Delphi expert consensus method to: (1) determine the final psychoeducation modules, and (2) perform acceptance testing of the myTBI platform. Finally, stage 3 (evaluation) will be a randomised stepped-wedge trial to evaluate efficacy, acceptability, and feasibility. Outcomes will be measured at baseline, postintervention, follow-up, and at final discharge from services. Change in outcomes will be analysed using multilevel mixed-effects modelling. Follow-up surveys will be conducted to evaluate acceptability and feasibility.
Ethics approval was granted by North Metropolitan Health Service Mental Health Research Ethics and Governance Office (RGS0000005877). Study findings will be relevant to clinicians, researchers, and organisations who are seeking a cost-effective solution to deliver ongoing psychoeducation and support to individuals with TBI across the recovery journey.
ACTRN12623000990628.
Large language models (LLMs) such as ChatGPT are being developed for use in research, medical education and clinical decision systems. However, as their usage increases, LLMs face ongoing regulatory concerns. This study aims to analyse ChatGPT’s performance on a postgraduate examination to identify areas of strength and weakness, which may provide further insight into their role in healthcare.
We evaluated the performance of ChatGPT 4 (24 May 2023 version) on official MRCP (Membership of the Royal College of Physicians) parts 1 and 2 written examination practice questions. Statistical analysis was performed using Python. Spearman rank correlation assessed the relationship between the probability of correctly answering a question and two variables: question difficulty and question length. Incorrectly answered questions were analysed further using a clinical reasoning framework to assess the errors made.
Online using ChatGPT web interface.
Primary outcome was the score (percentage questions correct) in the MRCP postgraduate written examinations. Secondary outcomes were qualitative categorisation of errors using a clinical decision-making framework.
ChatGPT achieved accuracy rates of 86.3% (part 1) and 70.3% (part 2). Weak but significant correlations were found between ChatGPT’s accuracy and both just-passing rates in part 2 (r=0.34, p=0.0001) and question length in part 1 (r=–0.19, p=0.008). Eight types of error were identified, with the most frequent being factual errors, context errors and omission errors.
ChatGPT performance greatly exceeded the passing mark for both exams. Multiple choice examinations provide a benchmark for LLM performance which is comparable to human demonstrations of knowledge, while also highlighting the errors LLMs make. Understanding the reasons behind ChatGPT’s errors allows us to develop strategies to prevent them in medical devices that incorporate LLM technology.
This study aimed (1) to examine the association between patient engagement with a bidirectional, semiautomated postdischarge texting programme and Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS) survey outcomes, readmissions and revisit rates in a large health system and (2) to describe operational and clinical flow considerations for implementing a postdischarge texting programme.
The study involved 1 main academic hospital (beds: 2500+) and 6 community hospitals (beds: 190–400, averaging 300 beds per hospital) in Houston, Texas.
Retrospective, observational cohort study between non-engaged patients (responded with 0–2 incoming text messages) and engaged patients (responded with 3+ incoming, patient-initiated text messages) between December 2022 and May 2023. We used the two-tailed t-test for continuous variables and 2 test for categorical variables to compare the baseline characteristics between the two cohorts. For the binary outcomes, such as the revisit (1=yes, vs 0=no) and readmissions (1=yes vs 0=no), we constructed mixed effect logistic regression models with the random effects to account for repeated measurements from the hospitals. For the continuous outcome, such as the case mix index (CMI), a generalised linear quantile mixed effect model was built. All tests for significance were two tailed, using an alpha level of 0.05, and 95% CIs were provided. Significance tests were performed to evaluate the CMI and readmissions and revisit rates.
From 78 883 patients who were contacted over the course of this pilot implementation, 49 222 (62.4%) responded, with 39 442 (50%) responded with 3+ incoming text messages. The engaged cohort had higher HCAHPS scores in all domains compared with the non-engaged cohort. The engaged cohort used significantly fewer 30-day acute care resources, experiencing 29% fewer overall readmissions and 20% fewer revisit rates (23% less likely to revisit) and were 27% less likely to be readmitted. The results were statistically significant for all but two hospitals.
This study builds on the few postdischarge texting studies, and also builds on the patient engagement literature, finding that patient engagement with postdischarge texting can be associated with fewer acute care resources. To our knowledge, this is the only study that documented an association between a text-based postdischarge programme and HCAHPS scores, perhaps owing to the bidirectionality and ease with which patients could interact with nurses. Future research should explore the texting paradigms to evaluate their associated outcomes in a variety of postdischarge applications.
Oral pre-exposure prophylaxis (PrEP) is a highly effective HIV prevention method; however, uptake and persistence have been low among southern African women. A dual prevention pill (DPP) that combines PrEP with oral contraception (OC) may increase PrEP use and better meet women’s sexual and reproductive health needs. We will gauge the DPP’s acceptability in two cross-over clinical trials.
PC952 (Zimbabwe) and PC953 (South Africa) will compare acceptability, adherence and preference for an over-encapsulated DPP versus PrEP and OCs taken separately. HIV-negative, non-pregnant cisgender females in Johannesburg, South Africa (n=96, 16–40 years) and Harare, Zimbabwe (n=30, 16–24 years) will be randomised 1:1 to the order of regimens—DPP or two separate tablets—each used for three 28-day cycles, followed by a 6-month choice period in South Africa. Monthly clinic visits include HIV and pregnancy testing; safety assessments and risk reduction and adherence counselling. We will assess adherence (monthly) based on tenofovir diphosphate drug levels in dried blood spots and by self-report. We will evaluate acceptability (monthly) and preference (end of cross-over) via computer-assisted self-interviewing and in-depth interviews with a subset of participants. Data collection started in September 2022 and ended in January 2024.
PC952 was approved by the Ministry of Health and Child Care, Medical Research Council, Research Council and Medicines Control Authority of Zimbabwe; the Chitungwiza City Health Ethics Committee; and the Joint Research Ethics Committee for the University of Zimbabwe Faculty of Medicine and Health Sciences and Parirenyatwa Group of Hospitals. PC953 was approved by the South African Health Products Regulatory Authority and the University of the Witwatersrand’s Human Research Ethics Committee. The Population Council IRB approved both studies. We will disseminate results in open-access journals, clinical trials registries, and at local and international meetings and conferences.
Workers with chronic illness are in higher risk of unemployment. This article investigated the worker and workplace characteristics associated with labour market inclusion for workers with a diagnosed chronic illness.
Linked employer-employee register data covering all Norwegian employers and employees each month from February 2015 to December 2019 were merged with patient data from specialist healthcare (136 196 observations (job spells); 70 923 individual workers). Survival analysis was used to estimate the risk of employment exit, with age, gender, chronic illness, full-time/part-time employment, skill level, marital status, children in household, branch, share of chronically ill workers, firm size and unemployment rate as covariates.
85% of the study population was employed in December 2019; 58% remain employed throughout the follow-up period. Mental illness, male gender, young age, part-time employment and lower skill levels were the worker-level predictors of labour market exit. Employments in secondary industries, in firms with high shares of chronically ill workers and, to some extent, in larger firms were the significant workplace-level determinants.
Only a minority of our sample of workers with chronic illness experienced labour market exclusion. Targeted measures should be considered towards workers with poor mental health and/or low formal skills. Chronically ill workers within public administration have the best labour market prospects, while workplaces within the education branch have an unfulfilled potential.
To describe what is known from existing scientific literature on children's and parents’ experiences of hospital-based home care and to identify future research areas.
The scoping review design used adheres to the methodological framework of Arksey and O'Malley, and to the PRISMA-ScR checklist.
A systematic search was conducted, and peer-reviewed scientific papers were screened through the application of Rayyan software. Data were extracted and presented in table and synthesised thematically as narrative text.
Searches were carried out November 2021 and updated November 2022 in the CINAHL, MEDLINE, Embase, Cochrane, Scopus, Web of Science, Academic Search Elite, and Amed databases and Google Scholar.
A total of 1950 studies were screened and assessed for eligibility. Eight studies met the inclusion criteria by reporting on parents' experiences, whereas five out of these eight studies also reported on the experiences of children. Parents of children with cancer and preterm children reported feeling more in control, being empowered, and being more connected to their children's care team when their children were receiving hospital-based home care. The family's own resources were activated, and they felt more involved in their children's care compared to being in an inpatient setting.
Children with cancer, acute infection, chronic disease, and/or a syndrome reported feeling safer and more comfortable in their home environment and experienced better interaction with their care providers. Some aspects of the children's health-related quality of life (HRQOL) were improved.
The identified studies indicate that hospital-based home care is a valued alternative to traditional inpatient care by both parents and children. The mode of care has no crucial negative effects. Future studies should encompass the experiences of children with different diagnoses and syndromes and compare patients treated in a traditional hospital setting with those in a hospital-based home-care programme.
Children's and parents’ experiences of HBHC indicate that it offers a good solution if parents are well prepared and feel in control. In addition, certain structural conditions must be in place before this type of care can be established: there must be a certain number of patients and the hospital must not be too far away. In the field of neonatal home care, professionals should be more responsive to fathers’ needs and tailor support by focusing on their individual experiences and needs. Our findings may guide and inform best practice for present and future providers of HBHC.
Hospital-based home care can offer families a greater degree of autonomy, more flexible care options, improved family functioning, improved communication with care providers, and more control over the child's care. When certain structural conditions are met, such as a certain number of patients, the hospital not being too far away, and parents being well prepared and feeling in control, then hospital-based home care is valued as an alternative to traditional inpatient care. Specific aspects of children's HRQOL may improve, and the psychosocial burden on the family does not increase.
HBHC provides a valued alternative to traditional inpatient care and allows families to receive care in the comfort of their own home. Our findings may guide and inform best practice for present and future providers of hospital-based home care.
In this scoping review, we have adhered to the Preferred Reporting Items for Systematic reviews and Meta Analyses Extension for Scoping Reviews checklist.
There has been no direct patient or public contribution to the review.
Not required.
To determine the association between nurse and institutional characteristics and perceived professional nurse knowledge and self-efficacy of reporting child abuse and neglect.
A sample of N = 166 nurses were recruited to respond to the Reporting of Suspected Child Abuse and Neglect (RSCAN) survey.
A multiple linear regression examined whether nurse characteristics and institutional characteristics were associated with the two RSCAN survey domain scores.
Perceived knowledge of a workplace child abuse and neglect protocol was associated with the knowledge subscale. Education and child abuse and neglect expertise were significant predictors of the self-efficacy subscale. Nurses with a master's or higher degree and those who identified as being either forensic, paediatric or Emergency Department nurses, had less perceived institutional barriers to self-efficacy of reporting child abuse and neglect.
This study provides a preliminary insight into the institutional barriers and facilitators of nurses as child abuse and neglect mandated reporters.
To encourage innovative education and collaborations to support nurses as fully informed child abuse and neglect mandated reporters.
This research identifies the gaps and facilitators of nurses as child abuse and neglect mandated reporters to inform healthcare professionals and academic institutions on the importance of nurse education and experience in nurse knowledge and self-efficacy in reporting suspected child abuse and neglect.
The authors of this study have adhered to relevant EQUATOR guidelines: STROBE.
There is no patient or public contribution as the study only looked at nurses.
Many adverse events are identified as nursing-sensitive indicators (NSIs) and have evidence-based care bundles known to reduce risk of occurrence. Kamishibai cards are a tool from the manufacturing industry used for practice auditing and improvements. Use of Kamishibai cards is believed to be common in the healthcare setting, but true evidence-based guidelines do not yet exist to guide their implementation.
The aim of this integrative review was to identify best practices around the implementation of Kamishibai cards in the healthcare setting for improvement in NSI-associated outcomes.
Eleven nurses at three facilities worked through the evidence using the Johns Hopkins Evidence-Based Practice Model.
Ten articles were included for this review. Broad themes included direct observation with non-punitive and timely feedback, clearly visualized results, use of evidence-based care bundles, pre-implementation education, and both leadership and frontline-staff involvement. All facilities showed improvement in NSI-associated outcomes after the implementation of K-cards.
In health care, K-cards can be implemented and designed with additional focus on the bundles of care they are intended to audit and staff support, but further evidence would better define guidelines around implementation.
To investigate the effectiveness of antimicrobial agents against wound infections, experiments using either 2D cultures with planktonic microorganisms or animal infection models are frequently carried out. However, the transferability of the results to human skin is limited by the lack of complexity of the 2D models or by the poor translation of the results from animal models. Hence, there is a need for wound infection models capable of assessing antimicrobial agents. In this study, an easily standardized wound infection model was established. This model consists of a mechanically wounded human skin model on a collagen matrix infected with various clinically relevant bacteria. Infection of the model led to recognition of the pathogens and induction of an inflammatory response. The untreated infection spread over time, causing significant tissue damage. By applying an antimicrobial-releasing wound dressing, the bacterial load could be reduced and the success of the treatment could be further measured by a decrease in the inflammatory reaction. In conclusion, this wound infection model can be used to evaluate new antimicrobial therapeutics as well as to study host-pathogen interactions.
The correlation between sub-epidermal moisture (SEM) and other early indicators of pressure ulcer (PU) development is yet to be determined. This three-part series aims to bridge this knowledge gap, through investigating SEM and its correlation with evidence-based technologies and assessments. This article focuses on the correlation between SEM and ultrasound. A prospective cohort observational study was undertaken between February and November 2021. Patients undergoing three surgery types were consecutively enrolled to the study following informed consent. Assessments were performed prior to and following surgery for 3 days at the sacrum, both heels and a control site, using a SEM scanner and high-frequency ultrasound scanner (5–15 MHz). Spearman's rank (r s ) explored the correlation between SEM and ultrasound. A total of 60 participants were included; 50% were male with a mean age of 58 years (±13.46). A statistically significant low to moderately positive correlation was observed between SEM and ultrasound across all anatomical sites (r s range = 0.39–0.54, p < 0.05). The only exception was a correlation between SEM and ultrasound on day 0 at the right heel (r s = 0.23, p = 0.09). These results indicate that SEM and ultrasound agreed in the presence of injury; however, SEM was able to identify abnormalities before ultrasound.
FreshRSS 