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"Evans, Robyn"
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Point-of-care wound visioning technology: Reproducibility and accuracy of a wound measurement app
by
Evans, Robyn
,
Beland, Benjamin
,
Anderson, John A. E.
in
Biology and Life Sciences
,
Cameras
,
Engineering and Technology
2017
Current wound assessment practices are lacking on several measures. For example, the most common method for measuring wound size is using a ruler, which has been demonstrated to be crude and inaccurate. An increase in periwound temperature is a classic sign of infection but skin temperature is not always measured during wound assessments. To address this, we have developed a smartphone application that enables non-contact wound surface area and temperature measurements. Here we evaluate the inter-rater reliability and accuracy of this novel point-of-care wound assessment tool.
The wounds of 87 patients were measured using the Swift Wound app and a ruler. The skin surface temperature of 37 patients was also measured using an infrared FLIR™ camera integrated with the Swift Wound app and using the clinically accepted reference thermometer Exergen DermaTemp 1001. Accuracy measurements were determined by assessing differences in surface area measurements of 15 plastic wounds between a digital planimeter of known accuracy and the Swift Wound app. To evaluate the impact of training on the reproducibility of the Swift Wound app measurements, three novice raters with no wound care training, measured the length, width and area of 12 plastic model wounds using the app. High inter-rater reliabilities (ICC = 0.97-1.00) and high accuracies were obtained using the Swift Wound app across raters of different levels of training in wound care. The ruler method also yielded reliable wound measurements (ICC = 0.92-0.97), albeit lower than that of the Swift Wound app. Furthermore, there was no statistical difference between the temperature differences measured using the infrared camera and the clinically tested reference thermometer.
The Swift Wound app provides highly reliable and accurate wound measurements. The FLIR™ infrared camera integrated into the Swift Wound app provides skin temperature readings equivalent to the clinically tested reference thermometer. Thus, the Swift Wound app has the advantage of being a non-contact, easy-to-use wound measurement tool that allows clinicians to image, measure, and track wound size and temperature from one visit to the next. In addition, this tool may also be used by patients and their caregivers for home monitoring.
Journal Article
Chronic non-healing ulcer reveals pyoderma gangrenosum: A case report
2025
Pyoderma gangrenosum is a rare, ulcerative skin condition with complex diagnostic and therapeutic challenges, particularly in cases without associated systemic conditions. We present the case of a 71-year-old female with a chronic, non-healing ulcer, initially unresponsive to conventional topical treatments. After a thorough evaluation and biopsy, a diagnosis of pyoderma gangrenosum was made. Treatment efforts included both intralesional and topical therapies, with varying responses observed. This case highlights the challenges in diagnosing and managing pyoderma gangrenosum, emphasizing the need for individualized care and a multidisciplinary approach to treat chronic, non-healing ulcers.
Journal Article
Ethical considerations related to virtual visiting for families and critically ill patients in intensive care: a qualitative descriptive study
by
Rose, Louise
,
Chung, Bethany
,
Evans, Robyn
in
Adult
,
Beliefs, opinions and attitudes
,
COVID-19
2024
Background
During the COVID-19 pandemic, virtual visiting technologies were rapidly integrated into the care offered by intensive care units (ICUs) in the UK and across the globe. Today, these technologies offer a necessary adjunct to in-person visits for those with ICU access limited by geography, work/caregiving commitments, or frailty. However, few empirical studies explore the ethical issues associated with virtual visiting. This study aimed to explore the anticipated or unanticipated ethical issues raised by using virtual visiting in the ICU, such that healthcare professionals can be informed about how to carry out virtual visits ethically, safely and productively.
Methods
We used a descriptive exploratory qualitative research approach recruiting a convenience sample of newly-graduated junior doctors facilitating ICU virtual visits in a tertiary academic centre. Eight newly graduated junior doctors, seven female and one male, aged 23–27, participated in semi-structured interviews. We analysed transcripts using an inductive coding approach.
Results
Five overarching themes emerged. Two of the themes namely, ‘fulfilling a moral instinct to connect families’ and ‘promoting autonomy’, arose from participants’ descriptions of how virtual visits aligned with healthcare standards and practices they considered ethical. Three further themes, ‘preserving dignity and privacy’, ‘managing emotional distress’, and ‘providing equitable access’ to virtual visiting technologies, highlight how virtual visits might exacerbate ethical issues related to family communications.
Conclusion
Virtual visiting may potentially both ameliorate and exacerbate aspects of ethical healthcare delivery for ICU patients and family members. ICU team members should consider unique ethical considerations related to using virtual visiting. We recommend virtual communications skills training for staff and advocate for the use of easily accessible educational resources for families who wish to visit critically unwell patients remotely.
Journal Article
The role of lifetime stressors in adult fibromyalgia: systematic review and meta-analysis of case-control studies
2021
Fibromyalgia is a chronic condition characterised by widespread musculoskeletal pain. Although accumulating evidence suggests that exposure to stressful events increases the risk for this complex disorder, this is the first meta-analysis to compare the impact of a full range of lifetime stressors (e.g. physical trauma through to emotional neglect) on adult fibromyalgia.
This review was performed in accordance with PRISMA guidelines. Random-effects models examined associations between different stressor exposures and fibromyalgia status with meta-regression investigating the effects of publication year and study quality on effect sizes.
Nineteen studies were included in the meta-analysis. Significant associations with fibromyalgia status were observed for all six exposure types examined: odds ratios (OR) were highest for physical abuse (OR 3.23, 95% confidence interval 1.99-5.23) and total abuse (3.06, 1.71-5.46); intermediate for sexual abuse (2.65, 1.85-3.79) and smaller for medical trauma (1.80, 1.19-2.71), other lifetime stressors (1.70, 1.31-2.20), and emotional abuse (1.52, 1.27-1.81). Results were not significantly changed when childhood, as opposed to adult, exposures were used in studies that reported both. Meta-regression analyses demonstrated no effect of publication year or study quality on effect sizes.
This study confirmed a significant association between stressor exposure and adult fibromyalgia with the strongest associations observed for physical abuse. Limitations related to current available literature were identified; we provide several suggestions for how these can be addressed in future studies. Stressors are likely to be one of many risk factors for fibromyalgia which we argue is best approached from a biopsychosocial perspective.
Journal Article
Continuous muscle pump activation by neuromuscular electrical stimulation of the common peroneal nerve in the treatment of patients with venous leg ulcers: A position paper
by
Sibbald, R. Gary
,
Stacey, Michael C.
,
Evans, Robyn
in
compression bandages
,
Compression therapy
,
Edema
2024
The standard treatment for patients with confirmed Venous Leg Ulcers (VLUs) is compression therapy to improve the function of the calf muscle pump. There is a significant cohort of patients who are unable to tolerate optimal compression therapy or indeed any level of compression therapy. In addition, there is a cohort of patients who can tolerate compression whose ulcers show little or no evidence of healing. There is a need for ways to further improve calf muscle pump function and to improve venous ulcer healing in these patients. Published data were reviewed on the use of Muscle Pump Activation (MPA) using common peroneal nerve neuromuscular electrical stimulation (NMES) to improve calf muscle pump function. There is physiological evidence that MPA can improve calf muscle pump function and venous return in both control subjects and in patients with venous disease. The use of MPA has also been shown to improve venous flow volume and venous flow velocity on ultrasound scanning in patients with venous disease. MPA has been shown to improve microcirculation in the skin using Laser Doppler and laser Doppler Speckle Contrast Imaging, in both normal subjects as well as in patients with venous disease and VLU. A recent randomized controlled trial of MPA plus compression therapy compared with compression therapy alone, found significantly faster rates of healing with the use of MPA in addition to compression therapy. There are indications for the use of MPA as an adjunctive treatment to enhance calf muscle pump function in patients with VLU: who cannot tolerate compression therapy who can only tolerate suboptimal, low‐level compression whose ulcer healing remains slow or stalled with optimal compression.
Journal Article
Canadian Consensus Statement for the Management of Venous Leg Ulcers
by
Evans, Robyn
,
Rosa, Paulo
,
Michel, Carly St
in
Canada
,
compression bandages
,
Compression therapy
2025
To develop a concise Consensus Statement on the management of venous leg ulcers (VLUs) that incorporates existing standards and guidance on new technology, including improvement of calf muscle pump function and the utilisation of advanced wound therapies. A multidisciplinary panel of 19 wound healthcare providers from across Canada, who treat patients with VLUs, was formed. A draft document was created and four rounds of consultation and feedback were sought from the panel. The Consensus Statement was completed in June 2024 with 100% consensus on 20 sections and > 85% consensus on the remaining three sections. The key elements are—Clinical assessment and investigations; Treatment‐compression to improve calf muscle pump function, and wound treatment with the principles of Wound Bed Preparation; When not healing or only suboptimal compression can be used ‐ add treatment with muscle pump activator by continuous Neuromuscular Electrical Stimulation of the common peroneal nerve to improve calf muscle pump function; When VLUs are not healing with optimal therapy ‐ an algorithm for the use of advanced wound therapies; and Prevention of VLU recurrence. The Consensus Statement is a concise guide for healthcare providers to use at the bedside and has been endorsed by leading nursing and homecare associations in Canada that also have physician representation.
Journal Article
Pressure Ulcers: Evidence-Based Prevention and Management
by
Ott, Carol
,
Evans, Robyn
,
Reddy, Madhuri
in
Clinical trials
,
Debridement
,
Dermatology and Wound Care (M Reddy
2015
There is limited good-quality research focused on the prevention and management of pressure ulcers. Current available evidence reveals that the following approaches may help to prevent pressure ulcers: the use of support surfaces such as specialized foam and specialized sheepskin overlays, mattress overlays on operating tables, consultation with a dietician to ensure adequate general nutrition, but it is not known whether any specific supplementation is useful, and moisturizing dry sacral skin. For management of existing pressure ulcers, it is unknown whether any specific support surface or dressing is preferable to any others; whether routine nutritional supplementation is beneficial, or if adjunctive therapies improve healing compared with standard care. Current evidence shows that the presence of increasing pain may make infection of a chronic wound more likely. There may be individuals for whom pressure ulcers are unavoidable. Risk assessment tools may be useful for identifying individuals at high risk for developing pressure ulcers.
Journal Article