Benefits of early vascular provider involvement in wound care center management of patients with underlying arterial disease.

OBJECTIVES: Peripheral arterial disease (PAD) can reduce wound healing rates by ≤30%. Current literature suggests wound outcomes are improved when management is driven by vascular providers. However, whether this benefit is derived solely from early vascular provider involvement remains unclear. METHODS: A retrospective analysis was performed of 80 limbs with chronic wounds and underlying PAD seen at our institution's wound center between July 2022 and July 2023. Arterial disease was defined by the following criteria: (1) prior PAD diagnosis, (2) ankle-brachial-index of <0.9 or toe pressure of <70 mm Hg, or (3) absent peripheral pulses. Patients were divided into early (<6 week) vascular provider exposure (EVE; n = 45) or late/no vascular exposure (LNVE; n = 35). Providers included vascular surgeons and affiliated advanced practitioners. The primary outcome studied was overall time to wound healing. Statistical analysis included χ2 tests, t test, Pearson correlation, Kaplan-Meier analysis, and Cox regression modeling (variables included in a multivariate model if univariate effect on healing was associated at P < .1). RESULTS: Baseline demographic profiles were similar between groups with exception of lower baseline albumin (P = .037), more heart failure (P = .013), and more prior peripheral endovascular interventions (P = .013) in the EVE group. Although the initial wound locations and sizes were similar, EVE wounds had significantly higher WIfI wound scores (1.9 ± 0.1 vs 1.6 ± 0.1; P = .039). Although more LNVE patients developed radiographic osteomyelitis (31.8% vs 55.6%; P = .033), fewer underwent operative debridement or amputation (100% vs 63.2%; P = .008). On univariate analysis, healing time tended to be shorter in EVE, but not significantly (P = .089). When controlled for comorbidities, however, healing rates were nearly two-fold higher in EVE (hazard ratio, 2.42; 95% confidence interval, 1.21-4.84). LNVE wounds also took significantly longer to reach checkpoints including time to >75% granulation (P = .05), 15% weekly size decrease (P = .044), and epithelialization (P = .026). LNVE patients required more wound center visits (P = .024) and procedures (P = .005) with a longer time to intervention (P = .041). All EVE patients obtained ankle-brachial indices, with 90.9% of them available at their first wound care visit (P < .001). Although a slightly greater proportion of patients underwent a major amputation in EVE (15.6% vs 11.4%; P = .595), this difference did not attain significance; additionally, 100% of EVE patients had documented discussion of nonsalvageable limbs before amputation. CONCLUSIONS: Early exposure to vascular practitioners improves wound healing time, timeliness to intervention, and wound center and hospital resource use in patients with PAD. Further investigation into benefits of vascular involvement within community wound center models could significantly improve awareness and accessibility of arterial wound care in smaller/remote communities.

An evaluation of the usability and durability of 3D printed versus standard suture materials.

The capability to produce suture material using three-dimensional (3D) printing technology may have applications in remote health facilities where rapid restocking of supplies is not an option. This is a feasibility study evaluating the usability of 3D-printed sutures in the repair of a laceration wound when compared with standard suture material. The 3D-printed suture material was manufactured using a fused deposition modelling 3D printer and nylon 3D printing filament. Study participants were tasked with performing laceration repairs on the pigs' feet, first with 3-0 WeGo nylon suture material, followed by the 3D-printed nylon suture material. Twenty-six participants were enrolled in the study. Survey data demonstrated statistical significance with how well the 3D suture material performed with knot tying, 8.9 versus 7.5 (p = 0.0018). Statistical significance was observed in the 3D-printed suture's ultimate tensile strength when compared to the 3-0 Novafil suture (274.8 vs. 199.8 MPa, p = 0.0096). The 3D-printed suture also demonstrated statistical significance in ultimate extension when compared to commercial 3-0 WeGo nylon suture (49% vs. 37%, p = 0.0215). This study was successful in using 3D printing technology to manufacture suture material and provided insight into its usability when compared to standard suture material.

Assessing the role of wound debridement in pyoderma gangrenosum-A retrospective cohort study.

The role of wound debridement in pyoderma gangrenosum (PG) is controversial, largely due to concerns regarding pathergy. This study sought to evaluate the clinical outcomes and utility of wound debridement in PG management. We conducted a retrospective cohort study of 104 patients diagnosed with PG at a single tertiary referral centre, stratified into two treatment groups: those receiving debridement in conjunction with immunosuppressive therapy (n = 38) and those treated with immunosuppression alone (control group, n = 66). The primary outcomes measured were remission (absence of active PG lesions without necessitating additional treatment), time to remission and disease progression (new lesions or expansion of existing ones). Remission was achieved by 60.53% (n = 23) in the debridement group versus 87.88% (n = 58) in the control group (p = 0.003). The mean time to remission was 12.3 months for the debridement group versus 8.67 months for the control group (p = 0.2). Multivariate Cox regression analysis indicated that debridement significantly decreased the likelihood of disease remission (adjusted hazards ratio [HR]: 0.45, 95% confidence interval [CI]: 0.26-0.78, p = 0.005). Disease progression was significantly higher in the debridement group (68.42%, n = 26) compared to the control group (15.15%, n = 10) (p < 0.001). Additionally, 28.95% (n = 11) of patients in the debridement group required repeated procedures, and 10.53% (n = 4) underwent amputations due to deteriorating conditions. The timing and duration of immunosuppressive therapy relative to the procedure did not mitigate the risk of post-surgical exacerbations. These findings suggest that debridement is associated with poorer healing outcomes in PG, advocating for its contraindication in the management of this condition.

Patterns of use of advanced wound matrices in the Veterans Administration clinics.

Chronic wounds are a common and costly health issue affecting millions of individuals in the United States, particularly those with underlying conditions such as diabetes, venous insufficiency, and peripheral artery disease. When standard treatments fail, advanced wound care therapies, such as skin substitutes, are often applied. However, the clinical effectiveness, indications, and comparative benefits of these therapies have not been well established. In this study, we report on the usage of both acellular and cellular, single and bilayer, natural and synthetic, dermal, and epidermal skin substitutes in a VA hospital system. We performed a retrospective chart review to understand the ordering and usage patterns of advanced wound therapies for patients with chronic wounds at the VA Northern California Health Care System. We examined types of products being recommended, categories of users recommending the products, indications for orders, and rate of repeated orders. Neuropathic, venous, or pressure ulcers were the main indications for using advanced wound matrices. Only 15.6% of patients for whom the matrices were ordered had supporting laboratory tests. Exactly 34.3% of the ordered matrices were not applied. And the use of wound matrices resulted in increased costs per patient visit of $1018-$3450. Our study sheds light on the usage patterns of these therapies in a VA healthcare facility and highlights the need for more robust evidence-based studies to determine the true benefits, efficacy, and cost-effectiveness of these innovative treatment options.

Editor's Choice - Association of Pedal Acceleration Time With Healing and Amputation Free Survival in Patients With Ulceration and Gangrene.

OBJECTIVE: Pedal acceleration time (PAT) is a novel non-invasive perfusion measurement that may be useful in the management of patients with ulceration and gangrene. The objective of this study was to report the association between PAT and wound healing, amputation free survival (AFS), and mortality at one year. METHODS: This prospective observational study reviewed all patients who underwent PAT after presentation with ulceration or gangrene from 1 January 2020 to 30 June 2022. PAT was defined as the time (in milliseconds) from the onset of systole to the peak of systole in the mid artery. The final PAT of a limb was used to assess outcomes (presenting PAT if no revascularisation, or post-revascularisation PAT). Wound healing, major limb amputation, and death at one year were collected. Healing was assessed with Fine-Gray competing risks model, AFS via logistic regression, and survival using Cox proportional hazards model. RESULTS: Overall, 265 patients (307 limbs) were included. The median patient age was 71 years and 74.0% (196/265) had diabetes mellitus. Patient demographics were similar among the final PAT category cohorts. Compared with a final PAT category 1, analysis of one year outcomes showed that the final PAT categories 2 - 4 had lower wound healing (category 2, hazard ratio [HR] 0.62, 95% confidence interval [CI] 0.43 - 0.9, p = .012; category 3, HR 0.21, 95% CI 0.08 - 0.58, p = .002; category 4, HR 0.12, 95% CI 0.04 - 0.34, p < .001), lower AFS (category 2, odds ratio [OR] 2.86, 95% CI 1.64 - 5.0, p < .001; category 3, OR 5.1, 95% CI 1.71 - 15.22, p = .003; category 4, OR 12.59, 95% CI 4.34 - 36.56, p < .001), and lower survival (category 2, HR 1.89, 95% CI 1.17 - 3.03, p =.009; category 3, HR 2.37, 95% CI 1.05 - 5.36, p = .039; category 4, HR 4.52, 95% CI 2.48 - 8.21, p < .001). CONCLUSION: The final PAT measurement is associated with wound healing, AFS, and death at one year. PAT may be a valuable tool to assess perfusion of the foot.

Geriatric Dermatologic Surgery Part II: Peri and intraoperative considerations in the geriatric dermatologic surgery patient.

Geriatric patients compose a growing proportion of the dermatologic surgical population. Dermatologists and dermatologic surgeons should be cognizant of the unique physiologic considerations that accompany this group to deliver highly effective care. The purpose of this article is to discuss the unique preoperative, intraoperative, and postoperative considerations geriatric patients present with to provide goal-concordant care. Preoperative considerations include medication optimization and anxiolysis. Intraoperative considerations such as fall-risk assessment and prevention, sundowning, familial support, and pharmacologic interactions will be discussed. Lastly, effective methods for optimizing post-operative wound care, home care, and follow up are reviewed.

The implementation of telemedicine in wound care: a qualitative study of nurses' and patients' experiences.

BACKGROUND: The increasing use of telemedicine (TM) represents a major shift for health workers and patients alike. Thus, there is a need for more knowledge on how these interventions work and are implemented. We conducted a qualitative process-evaluation alongside a larger randomized controlled trial designed to evaluate a telemedicine follow-up intervention for patients with a leg- or foot-ulcer, who either have or do not have diabetes. Accordingly, the aim of this study was to explore how both health care professionals and patients experienced the implementation of TM follow-up in primary care. METHODS: The intervention comprised an interactive TM platform facilitating guidance and counselling regarding wound care between nurses in primary care and nurses in specialist health care in Norway. Nurses and patients from seven clusters in the intervention arm were included in the study. We conducted 26 individual interviews (14 patients and 12 nurses) in primary care between December 2021 and March 2022. Thematic analyses were conducted. RESULTS: The analyses revealed the following themes: (1) enhancing professional self-efficacy for wound care, (2) a need to redesign the approach to implementing TM technology and (3) challenging to facilitate behavioral changes in relation to preventive care. As to patients' experiences with taking part in the intervention, we found the following three themes: (1) experience with TM promotes a feeling of security over time, (2) patients' preferences and individual needs on user participation in TM are not met, and (3) experiencing limited focus on prevention of re-ulceration. CONCLUSIONS: TM presents both opportunities and challenges. Future implementation should focus on providing nurses with improved technological equipment and work on how to facilitate the use of TM in regular practice in order to fully capitalize on this new technology. Future TM interventions need to tailor the level of information and integrate a more systematic approach for working with preventive strategies. CLINICAL TRIAL REGISTRATION: NCT01710774. Registration Date 2012-10-17.

Perspectives on improving wound care for Aboriginal health workers in rural and remote communities in Queensland, Australia.

BACKGROUND: The care of wounds is an ongoing issue for Indigenous people worldwide, yet culturally safe Indigenous wound care training programs for rural and remote Australian Aboriginal Health Workers are largely unavailable. The higher prevalence of chronic disease, lower socioeconomic status and poorer access to services experienced by Aboriginal and Torres Strait Islanders compared to non-Indigenous people, leads to a greater incidence of chronic wounds in Aboriginal and Torres Strait Islander people. Identifying the barriers and enablers for delivering wound care will establish areas of need for facilitating the development of a specific wound care program for Aboriginal Health Workers and Aboriginal Health Practitioners. This paper reports the first phase of a larger project directly aligned to the Indigenous Australians' Health Program's objective of supporting the delivery and access to high quality, culturally appropriate health care and services to Aboriginal and Torres Strait Islander Australians. This study aimed to examine experiences of Aboriginal Health Workers, Aboriginal Health Practitioners, and nurses for managing chronic wounds within rural and remote Aboriginal Medical Services in Queensland, Australia. METHODS: Yarning facilitated by two Aboriginal researchers among Aboriginal Health Workers, Aboriginal Health Practitioners, and nurses currently employed within four Aboriginal Medical Services located in rural and remote areas of Queensland, Australia. RESULTS: Two themes were developed through rigorous data analysis of yarning information and responses: participants' experiences of managing wounds and barriers and enablers to effective wound care. CONCLUSIONS: This study contributes an insight into the experiences of Aboriginal Health Workers on the current barriers and enablers to timely treatment of chronic wounds. Results from this study indicate a significant barrier to obtaining timely and effective wound care in regional and remote settings is access to an appropriately skilled, culturally competent, and resourced health work force. A lack of education and professional development for Aboriginal Health Workers can compromise their ability to maximise patient outcomes and delay wound healing. Findings have informed the development of an evidence based, culturally competent open access chronic wound care education program for Aboriginal Health Workers.

Venous Insufficiency: Wound Management.

PURPOSE OF REVIEW: Venous leg ulcers (VLUs) are one of the most common forms of chronic wounds and with nearly half the people having recurrent episodes, this significantly impacts a patient's quality of life. As such, VLU is a chronic disease that requires lifelong maintenance and awareness. A correct diagnosis of VLU is essential for management. RECENT FINDINGS: VLUs can be of mixed etiology and treatment should be aimed at optimizing the underlying venous hypertension based on its cause. If there is an anatomical venous reflux contributing to the non-healing of the VLU, early treatment of incompetent veins can improve healing rates. All aspects contributing to the patient's ongoing venous hypertension should be addressed to provide appropriate treatment. This can include venous interventions but also through conservative measures. Patient education and their engagement in their own care is essential for good outcomes.

Self-supporting wound care mobile applications for nurses: A scoping review.

AIM: This study provides an overview of the literature to identify and map the types of available evidence on self-supporting mobile applications used by nurses in wound care regarding their development, evaluation and outcomes for patients, nurses and the healthcare system. DESIGN: Scoping review. REVIEW METHOD: Joanna Briggs Institute scoping review methodology was used. DATA SOURCES: A search was performed using MEDLINE, Embase, CINAHL (via EBSCO), Web of Science, LiSSa (Littérature Scientifique en Santé), Cochrane Wounds, Érudit and grey literature, between April and October 2022, updated in April 2023, to identify literature published in English and French. RESULTS: Eleven studies from 14 publications met the inclusion criteria. Mostly descriptive, the included studies presented mobile applications that nurses used, among other things, to assess wounds and support clinical decision-making. The results described how nurses were iteratively involved in the process of developing and evaluating mobile applications using various methods such as pilot tests. The three outcomes most frequently reported by nurses were as follows: facilitating care, documentation on file and access to evidence-based data. CONCLUSION: The potential of mobile applications in wound care is within reach. Nurses are an indispensable player in the successful development of these tools. IMPLICATIONS FOR THE PROFESSION AND PATIENT CARE: If properly developed and evaluated, mobile applications for wound care could enhance nursing practices and improve patient care. The development of ethical digital competence must be ensured during initial training and continued throughout the professional journey. IMPACT: We identified a dearth of studies investigating applications that work without Internet access. More research is needed on the development of mobile applications in wound care and their possible impact on nursing practice in rural areas and the next generation of nurses. REPORTING METHOD: The Preferred Reporting Items for Systematic Reviews and Meta-analysis Extension for Scoping Review guidelines were used. PATIENT OR PUBLIC CONTRIBUTION: No patient or public contribution.

Identifying infection in chronic wounds in a community setting: A systematic review of diagnostic test accuracy studies.

AIM: To determine the diagnostic accuracy of different methods currently available to identify infection in chronic wounds applicable to adult patients in a community setting. DESIGN: Systematic review of diagnostic test accuracy studies. REVIEW METHODS: Two authors independently completed screening, data extraction and quality and bias assessments (QUADAS2). Eligible studies compared a method (index test) for detecting infection (diagnosis of interest) with microscopy and culture of either deep tissue biopsy or wound swab (reference test) in adult patients with wounds of >4 weeks duration (participants). The results were synthesized narratively. DATA SOURCES: We systematically searched CINAHL, Embase and Medline from 2011 to April 2022. RESULTS: Four studies were included, all recruiting from secondary care wound clinics. Two studies assessed the diagnostic accuracy of Moleculight i:X, a bacterial fluorescence imaging device against deep tissue biopsy culture. One study assessed the diagnostic accuracy of the elevation of various enzymes detected in wound fluid against wound swab microscopy of culture. One study assessed the diagnostic accuracy of bacterial protease activity against wound swab microscopy and culture. Sensitivities of these methods ranged from 50 to 75% and specificities from 47 to 100%. CONCLUSION: Only a small number of studies were included in this systematic review due to our strict inclusion criteria. We have not identified any methods for diagnosing infection in chronic wounds with either a sufficient quality of evidence to recommend their use in community settings at present. Further research is needed to develop and evaluate appropriate diagnostics for this purpose. IMPACT: This study highlights the paucity of research into wound diagnostics in a community setting and should prompt further research in this area. Accurate diagnostic tests have the potential to improve community-based wound care by optimizing antibiotic use and potentially improving healing time. REPORTING METHOD: PRISMA-DTA checklist. PATIENT OR PUBLIC CONTRIBUTION: The PPI group for the NIHR Community Healthcare MIC were supportive of this topic of work.

Hospital-acquired pressure injury prevention in people with a BMI of 30.0 or higher: A scoping review.

AIM(S): To: (1) explore current best practices for hospital-acquired pressure injury prevention in high BMI patients; (2) summarize nurses' experiences in preventing and managing them; (3) explore the association between a high BMI and occurrence and severity of pressure injury. DESIGN: Exploratory. METHODS: Scoping review. DATA SOURCES: Ovid MEDLINE, EBSCO CINAHL Plus, JBI Evidence Synthesis, Scopus, Embase, clinical registries and grey literature (search dates: January 2009 to May 2021). RESULTS: Overall, 1479 studies were screened. The included studies were published between 2010 and 2022. Five interventional studies and 32 best practice recommendations (Objective 1) reported low-quality evidence. Findings of thematic analysis reported in nine studies (Objective 2) identified nurses' issues as insufficient bariatric equipment, inadequate staffing, weight bias, fatigue, obese-related terminology issues, ethical dilemmas and insufficient staff education in high BMI patients' pressure injury prevention. No association between hospital-acquired pressure injury occurrence and high BMI were reported by 18 out of 28 included studies (Objective 3). CONCLUSION: Quality of evidence was low for the interventional studies and best practice recommendations. IMPLICATIONS FOR THE PROFESSION AND/OR PATIENT CARE: Current (2019) International Pressure Injury Guideline to be used despite the low quality of evidence of most best practice recommendations. IMPACT STATEMENT: This study addressed hospital-acquired pressure injury prevention in high BMI patients. Greater proportion of studies in this review found no association between high BMI and occurrence of hospital-acquired pressure injury. Nurses need educational interventions on pressure injury prevention in high body mass index people, sufficient staffing for repositioning and improved availability of bariatric equipment. REPORTING METHOD: We adhered to relevant EQUATOR guidelines, PRISMA extension for scoping reviews. PATIENT OR PUBLIC CONTRIBUTION: No patient or public contribution. WHAT DOES THIS PAPER CONTRIBUTE TO THE WIDER GLOBAL CLINICAL COMMUNITY?: Larger clinical trials are needed on repositioning frequency, support surfaces, prophylactic dressings and risk assessment tools to inform clinical practice guidelines on pressure injury prevention in high BMI people. PROTOCOL REGISTRATION: Wound Practice and Research (https://doi.org/10.33235/wpr.29.3.133-139).

Wound care practices following in-office cutaneous surgery among family physicians in Canada.

OBJECTIVE: Family physicians (FPs) in Canada routinely perform in-office cutaneous surgery. There is strong evidence to support a moist wound healing environment, resulting in faster healing times and improved cosmesis. However, the wound care practices of FPs have not been previously studied. We aimed to examine the postoperative wound care practices of FPs after in-office cutaneous surgery. METHOD: An online survey was distributed to Canadian FPs to determine post-surgical wound care practices. The survey examined moist versus dry wound healing and the reasons for these recommendations were explored. Additional wound care practices were also studied. Appropriate statistical analyses were undertaken. RESULTS: A total of 573 (91.5%) FPs completed the survey. Just under half (49.2%) of FPs recommended moist wound healing to their patients, while the remaining respondents (50.8%) recommended dry wound healing. The most endorsed reason for both moist and dry wound care recommendations was prior training (63.1% and 65.3%, respectively). Most physicians (57.2%) recommended the use of a cream or ointment postoperatively. While there appeared to be consensus on recommending sun avoidance after cutaneous surgery (77.7%), additional wound care practices varied, including: the use of dressings; cleansing practices; smoking cessation; reduction in physical activity; photoprotection; water exposure; and scar treatment/cosmetic use. CONCLUSION: Almost half of FPs in Canada responding to the survey did not recommend moist wound healing despite strong evidence to support this practice. We also noted a diverse range of postoperative wound care practices after in-office cutaneous surgery. Therefore, these results highlight a critical need for consistent wound care recommendations following cutaneous surgery for FPs in Canada.

Remote assessment and monitoring with advanced wound therapy to optimise clinical outcomes, access and resources.

OBJECTIVE: Patients in rural communities may have limited access to wound care; however, this may be mitigated by using a shared care approach. This study assessed the impact of a remote assessment and monitoring tool in combination with adjunctive continuous topical oxygen therapy (cTOT) in patients with diabetes and hard-to-heal wounds. METHOD: Patients with hard-to-heal wounds (defined as no visible improvement in the previous four weeks) were enrolled to this 12-week pilot study to validate a shared care approach using an Advanced Digital Wound Care Platform-telehealth (ADWCPt) system (eKare Inc., US) coupled with cTOT. Patient and wound assessments were reviewed by the clinician either remotely, via telehealth calls, or at the clinic, and the number of face-to-face clinic visits was recorded. Patient health status scores were captured before and after the study, along with feedback on usability of the remote platform and cTOT device. RESULTS: The wounds in all eight patients studied reduced in size over 12 weeks (mean percentage area reduction 92.0%), and two wounds were completely re-epithelialised. Another wound almost healed (99.2% wound area reduction). Clinical interactions consisted of self-assessments (n=80, 50.0%), video assessments with the clinician (n=27, 16.9%), and face-to-face interactions in clinic (n=53, 33.1%). Operational efficiencies encompassed a 54.0% increase in the number of clinical interactions, whereas clinical time was reduced by 25.8%. Health status scores improved across all eight patients and feedback on the shared approach and cTOT device was favourable. CONCLUSION: A shared care model with ADWCPt coupled with an innovative cTOT device saved time and resources, improving patient access and engagement, along with a marked improvement in the wound healing trajectory.

Key performance indicators to inform evaluation of wound care programmes for people with complex wounds: a protocol for systematic review.

OBJECTIVE: The objective of the systematic review is to examine and summarise the available evidence in the literature of the use of key performance indicators (KPIs) to inform evaluation of wound care programmes and services for people with hard-to-heal (complex) wounds. The need for wound care is expected to grow with the continued ageing of the population and the resulting increased development of chronic conditions. This expected increase necessitates improvement of wound care programmes and services and their ability to deliver quality, evidence-based and cost-effective practice. The current literature lacks a systematic assessment of KPIs to inform evaluation of wound care services and programmes across various settings, and how the KPIs are used to improve the quality of wound care and achieve desired outcomes. This protocol sets out how the systemtic review will be undertaken. METHOD: Primary studies will be screened from databases such as MEDLINE, CINAHL and Scopus, with unpublished studies and grey literature retrieved from Google Scholar and ProQuest Dissertations and Theses. The study titles and abstracts will be screened by two independent reviewers, using Covidence systematic review software to ensure they meet the inclusion criteria, who will then proceed with data extraction of the full-text using the standardised data extraction instrument. The reference lists of all studies selected for critical appraisal will be screened for additional publications. The two independent reviewers will critically appraise all studies undergoing full-text data extraction using the appropriate checklist from JBI SUMARI. At all stages, differences between reviewers will be resolved through discussion, with adjudication by a third, independent reviewer. RESULTS: Data points will be analysed with descriptive statistics and grouped, based on programme characteristics and publication status. Grey literature and peer-reviewed publications will form separate analyses. To answer review questions, the data will be summarised in a narrative format. A meta-analysis is not planned. At the time of writing, this protocol has been implemented up to the preliminary literature search. CONCLUSION: This review will address a current literature gap and systematically identify KPIs in wound care, allowing for programmes to evaluate their quality of care and improve their services in a methodical manner.

Defining wound bed conformability: a new testing methodology to assess the relative swelling rise of foam dressings.

OBJECTIVE: Using a dressing that expands and conforms to the wound bed upon exudate absorption is one of the best ways to promote wound healing. While many products claim wound bed conformability, no externally replicated or verified test methodology had been developed to quantify a wound dressing's ability to conform to the wound bed. The Relative Swelling Rise (RSR) test methodology was developed to measure the relative swelling rise of foam dressings upon fluid absorption, and offers a quantifiable and easily replicated method to measure wound bed conformability. METHOD: The RSR test method was developed, validated and reliability tested by Coloplast A/S, Denmark. External replication was provided by ALS Odense, Denmark (previously DB Lab). Circular fences provide a fixed diameter to apply and contain the fluid and prevent horizontal spreading in the test set-up. The swelling height is quantified relative to the fence's inner diameter, i.e., the ratio alpha (α), and allows evaluation of a material's ability to conform to the wound bed. RESULTS: Biatain Silicone foam products (n=3, Coloplast A/S, Denmark) were tested, all afforded an average α-ratio from 0.30 to 0.60. The relative standard deviations were between 1-3%, demonstrating the strength of the test. Robustness of the methodology was demonstrated through the internal validation study, the reliability study, and both an internal and external replication study, as well as a systematic literature review and expert review of the construct, content, criterion and generalisability of the method. CONCLUSION: Having a validated, effective and easily replicable testing method to quantify wound bed conformability of foam dressings is an important step towards achieving better healing outcomes.

Mentha piperita silver nanoparticle-loaded hydrocolloid film for enhanced diabetic wound healing in rats.

OBJECTIVE: To investigate the role of Mentha piperita silver nanoparticle-loaded carbopol gel for enhanced wound healing in a diabetic rat model. This research further aims to explore bioactive compounds derived from Mentha piperita obtained from high altitude. METHOD: Methanolic extracts of Mentha piperita (MP), Mentha spicata (MS) and Mentha longifolia (ML) were used to synthesise silver nanoparticles (AgNP). AgNP synthesis was confirmed by ultraviolet-visible (UV-Vis) spectroscopy, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The antioxidant activity was assessed by 2, 2-diphenyl-1-picrylhydrazyl (DDPH) assay. Antiglycation potential was determined by measuring the fluorescent advanced glycation end products. The bioactive compound identified in the Mentha piperita methanolic (MPM) fraction through electrospray ionisation tandem mass spectrometric analysis (ESI-MS) was responsible for the highest antiglycation. The effects of MPM and MPM.AgNP-loaded Carbopol (Sanare Lab, India) on wound healing were compared in male, alloxan-induced, diabetic albino rats (200-250g), divided into control and treated groups. Effects on wound healing were assessed via histopathology. RESULTS: UV-Vis and FTIR confirmed NP synthesis with peaks for flavonoids and polyphenols. SEM and XRD explored the cubical, 30-63nm crystalline NP. The maximum antioxidant and antiglycation potential was observed in order of; MP.AgNP>MS.AgNP>ML.AgNP. The highest antioxidant activity was observed by methanolic and aqueous MP.AgNPs (88.55% and 83.63%, respectively) at 2mg.ml-1, and (75.16% and 69.73%, respectively) at 1mg.ml-1, compared to ascorbic acid (acting as a positive control, 90.01%). MPM.AgNPs demonstrated the best antiglycation potential of 75.2% and 83.3% at 1mg.ml-1 and 2mg.ml-1, respectively, comparable to positive control (rutin: 88.1%) at 14 days post-incubation. A similar trend was observed for antimicrobial activity against Bacillus subtilis, Micrococcus luteus and Escherichia coli with an inhibition zone of 21mm, 21.6mm and 24.6mm. Rosmarinic acid was the active compound present in Mentha piperita, as identified by ESI-MS. MPM.AgNP-loaded Carbopol resulted in 100% wound closure compared with control at 20 days post-wounding. In the treatment group, re-epithelialisation was achieved by day 18, compared with 25 days for the positive control group. CONCLUSION: MPM.AgNP-loaded Carbopol demonstrated safer and more effective biological properties, hence accelerating the diabetic excision wound healing process in alloxan-induced diabetic rats.

Comparison of different concentrations of chlorhexidine-iodophor composite solution on human skin fibroblasts.

OBJECTIVE: Chlorhexidine-iodophor (CHX-IP) composite solution is a polymer of chlorhexidine and iodophor produced with new technology, for use in diabetic foot infection. However, the effect of CHX-IP on the growth activity of fibroblasts remains unknown, thus the effects of different concentrations of CHX-IP composite solution on the viability and micromorphology of human skin fibroblasts were studied in vitro cell culture in this study. METHOD: A cell viability assay was applied to calculate cell viability and an inverted fluorescence microscope was used to observe cell morphology over five days. RESULTS: The results showed that the toxic effect of CHX-IP on fibroblasts was solution concentration-dependent and decreased over time. When the concentration of CHX-IP was 5.0mg/ml, 2.5mg/ml, 0.625mg/ml, 0.15625mg/ml, 0.078125mg/ml or 0mg/ml, the difference of optical density (OD) value on different days was statistically significant (p<0.05). There were statistically significant differences in the OD value of fibroblasts among different concentrations of CHX-IP on: day 2 (F=4.809, p=0.004); day 3 (F=21.508, p<0.001); day 4 (F=63.952, p<0.001); and day 5 (F=160.407, p<0.001). In addition, a concentration of 5.0mg/ml CHX-IP resulted in a fibroblastic viability rate of 0% on day 4, when CHX-IP was diluted to 2.5mg/ml or 1.25 mg/ml, fibroblastic viability rate decreased to 0% day 5. However, when the CHX-IP was diluted to 0.15625mg/ml or 0.078125mg/ml, the fibroblastic cell viability rate increased slightly on day 5. The morphology of cells observed under microscope indirectly supported this result. CONCLUSION: The findings of this study showed that the toxic effect of CHX-IP on fibroblasts was solution concentration-dependent and decreased over time.

Radical sternectomy for osteomyelitis without reconstruction post-coronary artery bypass graft: 10 years on.

Radical sternectomy with sternal reconstruction using synthetic mesh or titanium plates has been described before with excellent results. However, radical removal of the sternum without reconstruction is a rare surgical treatment for complicated deep sternal wound infections (DSWI). The long-term outcome following this radical operation is not well-known due to the limited number of cases in the literature. We report on a patient 10 years after a radical sternectomy for DSWI who presented with shortness of breath. We highlight some of the anatomical and physiological changes the chest cavity may undergo and the fact that this patient had a near normal quality of life in the 10 years following the sternectomy.

Podiatrist intervention could reduce the incidence of foot ulcers in patients with diabetes: a hospital survey in China.

OBJECTIVE: This study aimed to evaluate the effectiveness of podiatrists in preventing diabetic foot ulcers (DFUs) in China. METHOD: The study was a prospective investigation. A total of 300 patients were enrolled from May 2016 to May 2018 in Handan Central Hospital, China. All patients who participated in this study had been diagnosed with type 2 diabetes, according to the International Classification of Diseases (ICD-10). All participants underwent our survey, which included basic patient data and information about DFUs. The patients were followed for one year, during which time they received appropriate intervention from podiatrists, including lifestyle guidance, callus resection, tinea grinding and ingrown nail correction. At the end of the year all the patients were surveyed again. The data before and after the year were statistically compared. RESULTS: The results showed that the incidence of DFUs in patients with diabetes was significantly decreased after one year of intervention from podiatrists (20.7% versus 6.7%, p<0.001). Additionally, there was a negative correlation between the number of intervention visits and the number of DFU occurrences (Spearman correlation coefficient: -0.496, p<0.001). Furthermore, we found that 68 patients with a history of DFUs or amputation had an obviously reduced incidence of DFUs after intervention by a podiatrist (89.7% versus 27.9%, p<0.001). We also investigated other foot risk factors in all participants, such as limb neuropathy (76.3%), lower extremity vascular disease (65.7%) and foot paralysis (43.7%). CONCLUSION: The results of this study help in understanding the situation of patients with diabetes in China and to prove that standardised podiatrist intervention has an important role in inhibiting the occurrence and development of DFUs.