International Wound Journal最新文献

To assess the potential for microbial contamination of open-but-unused portions of wound dressings stored under real-life conditions in healthcare facilities, to inform safer and evidence-based wound care practices. Observational, descriptive, longitudinal, prospective study. Eleven types of non-adhesive wound dressings were sampled after opening and storage under usual clinical conditions in a hospital inpatient unit and a primary care centre in Andalusia, Spain. Samples were collected on six predefined sampling days (Days 0, 2, 3, 4, 5 and 6 after opening), cultured under standardised laboratory conditions and microorganisms were identified using mass spectrometry. Differences in contamination were examined by dressing type, healthcare setting, storage time and handling conditions. Microbial growth was frequently detected in open-but-unused dressings from the first day after opening, particularly after enrichment culture and increased with handling and time. The most frequent microorganisms were coagulase-negative staphylococci and Staphylococcus aureus. Contamination patterns were similar across settings, although microbial diversity was higher in the hospital. Silver-containing dressings showed slightly lower contamination, but not enough to indicate protection. Scissors used for cutting dressings had high microbial loads, suggesting a potential source of cross-contamination. Open-but-unused dressings may become contaminated shortly after opening under routine clinical practice conditions, across different healthcare settings and dressing types.

Keloids are chronic fibroproliferative skin disorders with high recurrence rates and limited treatment options, yet reliable diagnostic biomarkers are lacking. Current classification systems rely heavily on clinical observation, underscoring the need for objective, noninvasive tools. In this exploratory study, serum-based ¹H nuclear magnetic resonance (NMR) measurement combined with short-time Fourier transform (STFT) for time-frequency analysis was performed, followed by principal component analysis (PCA), to investigate potential patient subgroups. Serum samples from 29 patients were analysed and PC1 scores suggested two potential patient subgroups. Retrospective analysis showed that these subgroups differed primarily in keloid aetiology: one group predominantly included cases arising from unclear or minimal causes (e.g., acne, folliculitis), whereas the other comprised cases following clear traumatic events (e.g., surgery). Although most clinical variables showed no significant differences, significant differences in aetiology and Japan Scar Workshop Scar Scale (JSS) scores support the biological relevance of this separation of subgroups. These findings suggest that the time-frequency features of NMR signals from serum samples capture systemic characteristics associated with keloid pathophysiology. If validated in larger cohorts, this approach may serve as a noninvasive adjunct to clinical assessment and lay the foundation for objective patient stratification and precision-guided treatment strategies.

Pressure mitigating dressings are one component of pressure ulcer/injury prevention strategies. There are many such devices on the market, but little data to compare them by. Herein we share our results of comparing sacral border dressings' capacity to mitigate deformations due to lateral forces. A modified version of a published digital image correlation-based technique was used to monitor the distortions of a cast silicone sheet under varying loads. Four sacral border dressings were compared to no dressing with three replicates for each. Empirical displacements within the gel were quantified via image analysis and compared via two-way ANOVA followed by Tukey's HSD test. Full field displacements were interpolated from the empirical data and the full field strains and shear were calculated and plotted. All four dressings were statistically significantly different from the control, but not among each other with magnitudes on the order of a hair's breadth. The maximum strains measured among the dressings were not significantly different in the direction of applied force, but two of the dressings were found to differ in the orthogonal direction, and those same dressings had computed strains equal to the control in the direction of the applied force. Our lab-based data indicate that four commercially available sacral border dressings reduce lateral strain under most conditions and shear under all conditions compared to no dressing. While the absence of clear tissue failure criteria limits direct clinical translation, these findings provide a straightforward and quantitative foundation for pre-clinical evaluation of sacral dressings.

Chronic venous leg ulcers (CVLUs) affect 1%-3% of adults. Standard compression therapy achieves healing in only 40%-70% of cases at 24 weeks. Evidence for hyperbaric oxygen (HBO) therapy remains controversial, with limited sham-controlled trials. To evaluate whether adjunctive HBO improves healing of refractory CVLUs compared to standard care alone. Single-centre, open-label randomised trial of 80 adults with CVLUs that persisted > 3 months despite standard care (defined as < 30% area reduction after 4 weeks of compression therapy). All consecutive eligible patients were randomised to HBO (20 sessions at 2.4 ATA, 90 min) plus standard care (n = 40) or standard care alone (n = 40). Primary outcome: percentage ulcer area reduction at day 30. Blinded assessors measured wounds, though participants knew their treatment allocation. HBO group had greater area reduction (62.1% ± 22.1% vs. 41.7% ± 21.5%; mean difference 20.4%, 95% CI: 10.1-30.7, p < 0.001; Cohen's d = 0.95). Complete healing at 90 days occurred in 62.5% vs. 30.0% (NNT = 3). TcPO₂ increased from 26.1 ± 6.3 to 150.3 ± 45.6 mmHg in HBO group (p < 0.001). Pain decreased more with HBO (ΔVAS -5.0 vs. -1.5, p < 0.001). Three patients (7.5%) had mild ear barotrauma that resolved spontaneously. Main limitations were lack of sham control and 90-day follow-up. In this trial, adjunctive HBO was associated with faster short-term healing of refractory venous ulcers < 20 cm². However, the open-label design and single-centre setting limit confidence in these findings. Sham-controlled multicentre trials with longer follow-up are needed before recommending routine use.

Cognitive impairment is associated with people with diabetes-related foot ulcers (DFU). However, it is unclear if cognitive impairment is associated with the ulcer itself or other co-existing diabetes-related complications such as peripheral neuropathy. We aimed to investigate cognition in people with diabetes-related peripheral neuropathy and compare those with DFUs to those without DFUs. In this age- and sex-matched, multicentre, case-control, observational study of 89 participants with Type 2 diabetes and peripheral neuropathy, we compared 49 participants with DFUs (cases) to 40 without DFUs (controls). Global cognition scores were assessed using the Montreal Cognitive Assessment tool. Participants with DFUs had similar characteristics to those without DFUs (all, p > 0.05), except for lower body mass index (p = 0.028). Participants with active DFUs had significantly lower global cognition scores compared to those without DFUs (median [IQR] 24.0 [21.0-25.0], 26.0 [24.0-28.0]; p < 0.001). After adjusting for other diabetes-related complications, lower global cognition was independently associated with a DFU, peripheral artery disease, lower physical activity and no family history of diabetes (all, p ≤ 0.019). People with DFUs had lower cognitive scores than those without DFUs, suggesting that the DFU itself is independently associated with cognitive impairment. Future studies should explore causal pathways and targeted management strategies.

Chronic wounds pose a substantial global health challenge, marked by persistent inflammation, infection, hypoxia, and impaired tissue regeneration. Traditional oxygen-based therapies, including hyperbaric and topical oxygen treatments, often suffer from limited efficacy, high costs, restricted accessibility, and difficulties in achieving sustained oxygen delivery. In contrast, microalgae offer a promising and sustainable alternative, owing to their biocompatibility, glucose consumption, and continuous oxygen production via photosynthesis. Innovative delivery platforms, such as hydrogels, scaffolds, sutures, microneedles, and microrobots, have demonstrated enhanced wound healing by mitigating hypoxia, reducing infection, and modulating inflammation. Recent advances in genetic engineering and 3D bioprinting further enhance the therapeutic potential of these systems. This review explores current progress in microalgae-based wound healing approaches, with a particular focus on photosynthesis-driven oxygen delivery technologies.

Exosome therapy has emerged in recent years as a promising acellular approach for the treatment of tissue regeneration and wound healing. Initial preclinical investigations have demonstrated accelerated fibroblast proliferation, improved angiogenesis and reduced scar formation. It is evident that patients are more likely to gain an understanding of these treatments and acquire information from digital platforms as opposed to from peer-reviewed scientific publications. This study assessed the credibility and instructional merit of exosome therapy content on YouTube, a prominent source of online health information. A cross-sectional study was performed on the initial 50 videos in English obtained using the keyword 'exosome therapy' (15 July 2025). The videos were independently assessed by two plastic surgeons and a dermatologist using three validated scoring systems. The scoring system was based on the Journal of the American Medical Association (JAMA) reference criteria for transparency and reliability, the Global Quality Score (GQS) for overall educational quality and the modified DISCERN tool for content reliability and balance. The median scores obtained were consistently low (DISCERN: 2.67; GQS: 2.67; JAMA: 2.00). However, videos created by doctors exhibited a statistically significant higher average score compared to videos published by patients, companies and YouTubers (p < 0.05). A robust positive correlation was identified between DISCERN and GQS (ρ = 0.95, p < 0.001). Despite the substantial experimental evidence that confirms the efficacy of exosome therapy for acute and chronic wounds, none of the videos addressed the recognised wound healing applications of exosome therapy. In contrast, the contents primarily focus on cosmetic enhancement, anti-ageing interventions and beauty-related applications. The discrepancy between the scientific advancements in the fields of regenerative medicine, dermatology and plastic surgery and the accessibility of online educational resources, highlights the necessity for professional health organisations to furnish accessible, evidence-based materials that accurately demonstrate the therapeutic potential of exosomes in wound healing.

Pressure ulcers (PUs) (also termed pressure injuries [PIs]) remain a major patient safety issue, particularly in critical care and other high-risk healthcare settings. Nurses are central to PUs/PIs prevention; however, deficiencies in knowledge, attitudes, and preventive practices among nursing staff may negatively affect patient outcomes. To systematically synthesise global evidence on nurses' knowledge, attitudes, and practices related to PUs/PIs prevention, and to identify factors influencing preventive performance. A systematic review was conducted in accordance with PRISMA guidelines. Electronic databases including PubMed, CINAHL, EBSCO, MEDLINE, PsycINFO, and Springer were searched for studies published between 2011 and 2025. Eligible studies were primary research articles examining registered nurses' knowledge, attitudes, and/or practices regarding PUs/PIs prevention, using cross-sectional, observational, or non-experimental designs. Data extraction focused on study characteristics, settings, samples, assessment instruments, and key outcomes related to knowledge, attitudes, and preventive practices. Due to methodological heterogeneity, a narrative synthesis was performed. Twenty-nine studies from diverse geographical regions were included, with sample sizes ranging from 28 to 950 nurses. Overall, nurses' knowledge of PUs/PIs prevention was frequently inadequate, particularly in prevention-specific domains. In contrast, attitudes toward prevention were generally positive across studies. Preventive practices, however, were often suboptimal. Commonly reported barriers included staff shortages, high workload, limited resources, and insufficient institutional support. Higher educational attainment, specialised clinical experience, recent training, and professional seniority were consistently associated with better knowledge, more positive attitudes, and improved preventive practices. Although nurses generally demonstrate positive attitudes toward PUs/PIs prevention, persistent gaps in knowledge and practice remain. These findings underscore the need for structured education programmes, simulation-based training, and strengthened organisational support to enhance adherence to evidence-based prevention strategies. Future research should employ experimental and longitudinal designs, standardised measurement tools, and broader international representation to support sustainable improvements in PUs/PIs prevention and patient safety.

Recognising peripheral arterial disease and chronic venous insufficiency early and managing them appropriately improves patient outcomes and prevents ulceration. However, few studies consider the influence patient skin tone has on this assessment. The study aimed to explore the experiences of healthcare professionals when assessing the cutaneous manifestations of chronic venous insufficiency and peripheral arterial disease in people with dark skin tones. We conducted semi-structured online interviews with healthcare professionals working in the United Kingdom between July and December 2023. The 'theoretical domains framework of behaviour change' (TDF) guided the interview schedule and data analysis. 24 healthcare professionals were interviewed (18 nurses, 5 doctors, 1 physiotherapist) with an average experience of 15 years (IQR 9.75-21.75 years). We found the environmental context domain best explains clinical behaviour, which included effective teamworking, referral pathways and training, and adequate lighting. Environmental factors also influenced other aspects of the TDF such as skill development, focus and concentration, and belief about capabilities. Some participants also found personal challenges in asking questions exploring patients' behaviour and skin care practices as they did not want to cause offence. Findings will inform the development of interventions to support lower limb assessment in those with dark skin tones.

Split-thickness skin autografts are commonly used to treat extensive cutaneous defects. However, donor site morbidity, including pain, bleeding, and delayed epithelialization, remains a major clinical challenge. This study evaluates whether applying autologous platelet-rich plasma (PRP) to the donor site improves healing outcomes. A prospective cohort study was conducted at a tertiary-level academic hospital in Colombia. The study protocol was approved by the local Institutional Ethics Committee. Adult patients (> 18 years) undergoing split-thickness skin grafts for trauma, burns, oncologic resections, or chronic ulcers were included. Two groups were compared: the PRP group, in which autologous platelet-rich plasma was applied to the donor site, and the control group, which received standard wound care. The primary outcome was the quality of epithelialization at the donor site, while pain, assessed using the Numeric Rating Scale, was evaluated as a secondary outcome at multiple postoperative time points. Data were analysed using descriptive statistics and linear mixed-effects models adjusted for potential confounders, with statistical significance set at p < 0.05. A total of 46 patients were included (16 in the PRP group and 30 in the control group), with no significant demographic differences between groups. The PRP group demonstrated improved epithelialization quality, with lower Vancouver Scar Scale scores on postoperative days 7 and 14 (p < 0.05). Patients treated with PRP also reported a reduction of up to 50% in postoperative pain during early assessments (p < 0.001). These effects were maintained throughout the follow-up period, suggesting a sustained benefit of PRP on both healing quality and pain control. These findings suggest that autologous PRP application at split-thickness skin graft donor sites may enhance early epithelialization quality and reduce postoperative pain compared with standard wound care. PRP appears to be safe and may represent a useful adjunct to promote improved wound healing and patient recovery in reconstructive surgery. However, larger randomised controlled trials are required to confirm these findings and to establish the clinical effectiveness of autologous PRP in this setting.