Patient perspectives on the physical, psycho-social, and financial impacts of diabetic foot ulceration and amputation

'Leaving the Door Open': Perspectives on Decision-Making for Non-Emergency Diabetes-Related Amputation

INTRODUCTION

Having a lower extremity amputation is a life-changing decision for people living with a diabetes-related foot ulcer. Although previous research has described both positive and negative lifestyle and function outcomes of diabetes-related amputations, limited research has been conducted on the decision-making processes leading up to the amputation. This study aimed to explore the perspectives of persons, healthcare practitioners and experts (including academics and specialists) on decision-making for people with a diabetes-related foot ulcer who may require a non-emergency amputation.

METHODS

A qualitative descriptive study using semi-structured interviews enabled people to share their thought processes when making decisions for amputation. Twenty-six participants were interviewed, including nine people with a diabetes-related foot ulcer or amputation, nine health practitioners and eight experts located across five countries. There were 13 female and 13 male participants. Thematic analysis was used for data analysis.

RESULTS

Four themes described the decision-making considerations for amputation: 'Balancing the evidence in decision-making', 'Trust, respect and timing of conversations inform decision-making', 'Tailoring decisions for individual circumstance' and 'Reaching the tipping point in decisions for the future'. Work commitments, functional and lifestyle impacts of amputation, the presence of support networks and clinical wound features formed the evidence for a decision for amputation.

CONCLUSION

Understanding quality of life needs ensured that decisions for amputation addressed expectations and lifestyle needs. Living with a diabetes-related foot ulcer presented daily challenges that pushed people to a tipping point, at which amputation was considered to overcome these hardships and enable them to move on to the next chapter of their life. Further research is required to understand how person-centred factors can be better incorporated alongside objective clinical assessments in decisions for amputation.

PATIENT OR PUBLIC CONTRIBUTION

People with diabetes-related foot ulcers, health practitioners and experts shared their perspectives on the decision-making process for amputation through one-to-one interviews. Consideration of the person in the context of their life, environment and personal needs alongside the pathological factors is warranted.

The WOUND-Q Function and Symptoms Scales for Chronic Lower Extremity Wounds: A Validation Study

Objective: Determine the validity and reliability of the LIMB-Q scales, Function, and Symptoms in patients with chronic lower extremity wounds. Approach: Cognitive debriefing interviews with people with current or previous wounds were conducted to examine content validity. Scales were field-tested in an international sample of people with chronic lower extremity wounds sourced from an online platform (i.e., Prolific). Psychometric properties were examined using the Rasch Measurement Theory analysis. A test-retest reproducibility study was performed, and construct validity was examined. Results: Content validity was established after 10 cognitive interviews. A total of 233 people with lower extremity wounds (age 19-80 years, mean 39.3) participated in the field test. All 25 items tested demonstrated good fit to the Rasch model with ordered thresholds. One item had a fit residual outside ±2.5, but no items had significant χ2 values after Bonferroni adjustment. Reliability was high with the person separation index, Cronbach alpha, and intraclass correlation coefficient values >0.8. Strong correlations were found between the Function and Symptoms scales and EQ-5D dimensions measuring similar constructs as well as the EQ-5D global score. All hypotheses for construct validity were confirmed. Innovation: Patient-reported outcome measures are an important component of patient-centered care, as they capture the patient's perspective in a rigorous and reproducible way. Adding these two scales to the WOUND-Q provides a means to measure function and symptoms associated with lower extremity wounds. Conclusion: These new WOUND-Q scales can be used to measure outcomes important to patients with lower extremity wounds in clinical settings and research studies.

Assessing placental membrane treatment efficiency in diabetic foot ulcers: Processing for retention versus lamination

Background

Diabetic foot ulcers are a severe complication in diabetic patients, significantly impact healthcare systems and patient quality of life, often leading to hospitalization and amputation. Traditional Standard of Care (SOC) treatments are inadequate for many patients, necessitating advanced wound care products (AWCPs) like human placental membranes. This study conducts a retrospective analysis to compare the effectiveness of two human placental membrane products, retention-processed amnion chorion (RE-AC) and lamination-processed amnion chorion (L-AC) in managing chronic diabetic foot ulcers (DFUs).

Methods

The study collected retrospective observational data from electronic health records (EHRs) of patients treated for DFU at three outpatient wound care centers. Patients were categorized into two cohorts based on the treatment received. Key metrics included wound size progression and the number of product applications. The analysis employed Bayesian estimation, utilizing an analysis of covariance model with a Hurdle Gamma likelihood.

Results

We found that RE-AC achieved a marginally higher expected Percent Area Reduction (xPAR) in DFUs compared to L-AC at 12 weeks (67.3% vs. 52.6%). RE-AC also required fewer applications, suggesting greater efficiency in general wound closure. Probability of full wound closure was similar in both groups (0.738 vs 0.740 in RE-AC and L-AC, respectively).

Conclusion

The findings suggest that while L-AC might be slightly more effective in complete ulcer healing, RE-AC offers overall better treatment efficiency, especially in reducing the frequency of applications. This efficiency can lead to improved patient comfort, reduced treatment costs, and optimized resource utilization in healthcare settings.

Effects of Recombinant Human Granulocyte/Macrophage Colony-Stimulating Factor on Diabetic Lower Extremity Ulcers: Case Series of Nine Patients

Background

Diabetic lower extremity ulcer, including diabetic foot ulcer (DFU) and leg ulcer, is one of the refractory complications of diabetes, the treatment of which is challenging, expensive, and lengthy. Recombinant Human Granulocyte/Macrophage Colony-stimulating Factor (rhGM-CSF) is an immunomodulatory cytokine that has been mainly applied in the treatment of hematological diseases. Clinical evidence regarding GM-CSF in the treatment of diabetic lower extremity ulcers is limited. This study is the first case series that investigates the repurpose effects of rhGM-CSF on diabetic ulcer healing in real clinical practice.

Methods

Nine patients diagnosed with diabetes and refractory lower extremity ulcer (ulcer duration ≥2 weeks) were included from September 2021 to February 2023 in the Division of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology. Patients with Wagner grade ≥4 and SINDAD ≥5 were excluded. The included subjects were treated with rhGM-CSF plus standard of care (SOC) including glycemic control, foot care education, debridement of necrotic tissues, topical wound dressings, offloading, and infection control when necessary. The observation endpoint was complete epithelialization. Their clinical manifestations, laboratory tests, and therapeutic effects were extracted and analyzed.

Results

The case series included 9 cases aged from 29 to 80 years and all the patients were male. Seven of 9 patients presented neuropathic ulcer. Only one case showed non-infected ulcer from tissue samples and one case presented ankle brachial index (ABI) <0.9. It was observed that the ulcer areas among these 9 patients gradually declined throughout the whole treatment period with the average healing velocity 0.32 ± 013 cm2/day and the mean time to complete healing 16.0 ± 3.7 days. The relative area (percentage of initial ulcer area) decreased to 66.7 ± 13.0% on average after the first treatment. Ulcers in all the 9 patients achieved complete epithelialization after 4-8 times treatments.

Conclusion

The case series suggests rhGM-CSF as a promising therapeutic strategy for the treatment of diabetic ulceration. More robust data from randomized controlled trials are required to further evaluate its clinical efficacy.

Changes in daily nursing needs and self-care capability of people with diabetes after in-hospital treatment for foot complications: A descriptive study

AIM

A limited number of studies discuss the changes in patients' self-care skills and needs for assisted self-care after discharge from in-patient treatment due to diabetes foot ulcer-related complications. The aim of this study was to examine the ability to perform self-care and needs for assisted nursing interventions at hospital discharge, compared to pre-admission, for people with diabetes admitted and treated for foot ulcer-related complications.

DESIGN

Retrospective patient record study.

METHODS

A retrospective assessment was done on the medical records of a total of 134 patients with diabetes consecutively admitted to a specialist in-patient unit due to foot ulcer complications, between 1 November 2017 and 30 August 2018. Data on daily self-care needs and home situations at admission and discharge were recorded.

RESULTS

The median age was 72 years (38-94), 103 (76.9%) were men and 101 (73.7%) had diabetes type 2. The median length of admission was 10 days (2-39). Infection was the most common cause of admission (51%), with severe ischaemia in 6%, and a combination of both in 20% of patients. Surgical treatment was performed in 22% and vascular intervention in 19% of patients. The percentage of patients discharged to their home without assistance was 48.1% compared to 57.5% before admission, discharge to home with assistance was 27.4% versus 22.4% before admission and 9.2% were discharged to short-term nursing accommodation versus 6% before admission. Three patients died during their stay in hospital. The need for help with medications increased from 14.9% of patients at admission to 26.7% at discharge and for mobility assistance from 23.1% to 35.9%. Social services at home were increased in 21.4% of patients at discharge.

Cost-effectiveness of temperature monitoring to help prevent foot ulcer recurrence in people with diabetes: A multicenter randomized controlled trial

AIMS

Diabetes-related foot ulcers are common, costly, and frequently recur. Multiple interventions help prevent these ulcers. However, none of these have been prospectively investigated for cost-effectiveness. Our aim was to evaluate the cost-effectiveness of at-home skin temperature monitoring to help prevent diabetes-related foot ulcer recurrence.

MATERIALS AND METHODS

Multicenter randomized controlled trial. We randomized 304 persons at high diabetes-related foot ulcer risk to either usual foot care plus daily at-home foot skin temperature monitoring (intervention) or usual care alone (control). Primary outcome was cost-effectiveness based on foot care costs and quality-adjusted life years (QALY) during 18 months follow-up. Foot care costs included costs for ulcer prevention (e.g., footwear, podiatry) and for ulcer treatment when required (e.g., consultation, hospitalisation, amputation). Incremental cost-effectiveness ratios were calculated for intervention versus usual care using probabilistic sensitivity analysis for willingness-to-pay/accept levels up to €100,000.

RESULTS

The intervention had a 45% probability of being cost-effective at a willingness-to-accept of €50,000 per QALY lost. This resulted from (non-significantly) lower foot care costs in the intervention group (€6067 vs. €7376; p = 0.45) because of (significantly) fewer participants with ulcer recurrence(s) in 18 months (36% vs. 47%; p = 0.045); however, QALYs were (non-significantly) lower in the intervention group (1.09 vs. 1.12; p = 0.35), especially in those without foot ulcer recurrence (1.09 vs. 1.17; p = 0.10).

CONCLUSIONS

At-home skin temperature monitoring for diabetes-related foot ulcer prevention compared with usual care is at best equally cost-effective. The intervention resulted in cost-savings due to preventing foot ulcer recurrence and related costs, but this came at the expense of QALY loss, potentially from self-monitoring burdens.

Diabetic Foot and Work Outcomes: A Review

The aim of this review article was to discuss impact of diabetic foot ulcers (DFUs) on employment status and work productivity. We performed a literature search from 2000 to 2023 in PubMed, Scopus, Google Scholar and in national repositories. The major work outcomes studied were presenteeism and absenteeism. Many DFUs patients had a poor social and educational background. Overall, DFUs patients experienced increased loss of productivity in their workplaces: either they had to be absent more working hours than average or they faced increased difficulty in meeting their daily requirements. The total loss in productivity is estimated to exceed almost one-third of anticipated working time, while 15 to 34.3% of DFUs patients expressed concerns about severe changes in their working environment, attributed directly to their condition. More than 1 out of 5 DFUs patients (ranging from 20 to 31.7%) were even confronted with overall job loss and unemployment. Amputations had an even more marked negative effect. In conclusion, DFUs negatively affect employment status and work productivity. Therefore, we need more studies with large participant numbers to increase our experience and to explore potential measures to mitigate these adverse effects.

Evaluation of a new low-cost negative pressure wound therapy in the treatment of diabetic foot ulcers

OBJECTIVE

To investigate the effectiveness of a new and low-cost negative pressure wound therapy (LC-NPWT) in the treatment of diabetic foot ulcers (DFUs).

METHOD

In this retrospective cohort study, patients from our inpatient clinic with Wagner grade 3 DFUs were given LC-NPWT or conventional wound dressings. The primary outcome was the wound healing rates. Complete wound healing, defined as complete re-epithelialisation of the wound, was recorded during the two months of follow-up. The definition of complete epidermis of the wound was that the skin was closed (100% re-epithelialisation), with no drainage or dressing. The secondary outcomes were the number of inpatient days and surgical procedures, and outcomes after hospital discharge. The wound score from the Bates-Jensen wound assessment tool and the levels of the inflammation factors procalcitonin (PCT), C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR) were compared between the two groups. The Kaplan-Meier survival estimate was used to examine the cumulative wound healing rate.

RESULTS

The study cohort comprised 41 patients. The two-month wound healing rate was higher in patients in the LC-NPWT group than in the control group (15/21 (71.4%) versus 8/20 (40.0%), respectively; p=0.043). At the end of the two-month follow-up period, the cumulative wound healing rate was higher in the LC-NPWT group than in the control group (p=0.032). Patients in the LC-NPWT group had fewer inpatient days (19.3±3.84 versus 25.05±4.81; p<0.001) and shorter duration of antibiotic use (32.14±3.89 days versus 36.10±5.80 days; p=0.014) than those who received conventional wound dressings. There were significant improvements in mean wound score between the LC-NPWT group and the control group (p<0.001). After one week of treatment, the blood levels of PCT (0.03±0.30ng/ml versus 0.07±0.08ng/ml; p=0.039), CRP (14.55±13.40mg/l versus 24.71±18.10mg/l; p=0.047) and ESR (42.05±29.29mm/h versus 61.65±22.42mm/h; p=0.021) were lower in patients who received LC-NPWT than those who received conventional wound dressings.

CONCLUSION

LC-NPWT is effective in the treatment of DFUs and provides a cheaper alternative for patients with DFUs that could potentially alleviate the economic distress these patients endure.

Current knowledge of morbidities and direct costs related to diabetic foot disorders: a literature review

Diabetes is a chronic disease associated with numerous complications including diabetic foot disorders, which are associated with significant morbidity and mortality as well as high costs. The costs associated with diabetic foot disorders comprise those linked to care (direct) and loss of productivity and poor quality of life (indirect). Due to the constant increase in diabetes prevalence, it is expected that diabetic foot disorder will require more resources, both in terms of caregivers and economically. We reviewed findings on management, morbidity, mortality, and costs related to diabetic foot disorder.

Decision-making processes for non-emergency diabetes-related lower extremity amputations: A scoping review

Living with a diabetes-related foot ulcer has significant lifestyle impacts. Whilst often considered a last resort, amputation can overcome the burden of ulcer management, for an improved quality of life. However, limited research has been conducted to understand how the decision to amputate is made for people with a chronic ulcer when amputation is not required as a medical emergency. Therefore, the aim was to identify and map key concepts in the literature which describe the decision-making for diabetes-related amputations. This review followed Arksey and O'Malley's PRISMA scoping review framework. Five electronic databases and grey literature were searched for papers which described clinical reasoning and/or decision-making processes for diabetes-related amputation. Data were extracted and mapped to corresponding domains of the World Health Organisation's International Classification of functioning, Disability and Health (ICF) framework. Ninety-four papers were included. Personal factors including emotional wellbeing, quality of life, and treatment goals are key considerations for an elective amputation. It is important to consider an individual's lifestyle and personal circumstances, as well as the pathology when deciding between amputation or conservative management. This highlights the importance of a holistic and shared decision-making process for amputation which includes assessment of a person's lifestyle and function.

Diabetes knowledge and foot care practices among type 2 diabetes patients attending the chronic ambulatory care unit of a public health hospital in eastern Ethiopia: a cross-sectional study

OBJECTIVE

To assess diabetes knowledge and foot care practices among type 2 diabetes patients.

DESIGN

An institution-based cross-sectional study was undertaken from 1 January to 31 January 2021.

SETTING

Eastern Ethiopia.

PARTICIPANTS

Randomly selected type 2 diabetes patients who were available during the data collection period were included.

OUTCOMES

Patients' diabetes knowledge was assessed with the revised diabetes knowledge test questionnaire. Five items were used to evaluate foot self-care practices.

RESULTS

The study population comprised of 549 patients. About 52.5% of the patients had adequate diabetes knowledge (95% CI: 48.2% to 56.7%). Patients with an educational level of secondary school and above (adjusted OR (AOR): 2.04, 95% CI: 1.13 to 3.71), (AOR: 5.28, 95% CI: 2.28 to 12.22), and those with medium and above wealth status (AOR: 3.81, 95% CI: 2.24 to 6.47), (AOR: 3.46, 95% CI: 1.98 to 6.04), were found to have better odds of having adequate diabetes knowledge. However, those aged >55 years (AOR: 0.47, 95% CI: 0.22 to 0.99) were found to have lower odds of adequate diabetes knowledge.Of the total included patients, 20.2% (95% CI: 16.9% to 23.8%) had good foot care practices. Knowledge of the target fasting plasma glucose (AOR: 3.18, 95% CI: 1.94 to 5.22) and adequate diabetes knowledge (AOR: 3.40, 95% CI: 1.95 to 5.91) were significantly associated with good foot care practices.

CONCLUSION

According to this study, about half of individuals with type 2 diabetes have adequate levels of knowledge about the disease. In addition, only one out of every five patients has good foot care habits. Diabetes education should emphasise the significance of rigorous adherence to daily foot care practices.

Assessing social needs among patients with cardiovascular and psychiatric comorbidities in free community health clinics

BACKGROUND

Community-related health assessments have been shown to improve several outcomes in socioeconomically disadvantaged populations with comorbid chronic health conditions. However, while it is recognized that modifiable social determinant of health (SDH) factors might be responsible for up to 60% of preventable deaths, it is not yet standard of care to routinely screen and address these at preventive health appointments. The objective of this study was to identify the social needs of socioeconomically disadvantaged patients.

METHODS

We performed a retrospective review of the socioeconomic screening questionnaires distributed to under- and uninsured patients seen at a medical student-run free primary care-based community clinic. This study included participants of all ages (0 and up), genders, languages, and ethnicities who filled out the social screening questionnaire. Socioeconomic screening questionnaires assessed the need for critical resources such as food, housing, utilities, finances, transportation, childcare, employment, education, legal support, companionship, health literacy, and community assistance. The primary study outcome was to identify unmet social needs of our medical student-run free clinic patients. We secondarily sought to identify associations between these needs and chronic health conditions. We hypothesized that patients with multiple chronic health problems and financial stressors would have the highest requests for resources.

RESULTS

Our retrospective review identified 264 uninsured participants who were evaluated for social needs using a screening questionnaire. Participants who reported unmet social needs had significantly more cardiovascular risk factors than those who did not. Cardiovascular comorbidities and a history of psychiatric illness were the two most common medical problems significantly associated with several unmet social needs.

CONCLUSION

This study provides support for the preemptive identification and appropriate management of physical, mental, and social care to improve disproportionate disparities in long-term health outcomes.

Identifying barriers to preventive care among First Nations people at risk of lower extremity amputation: a qualitative study

BACKGROUND

First Nations people in Canada are overrepresented among those who have undergone nontraumatic lower extremity amputation, and are more likely to be younger, have diabetic foot infections and have no previous revascularization procedures than non-First Nations populations who have undergone lower extremity amputations. We sought to identify access barriers for high-risk First Nations patients, explore patients' experiences with health care systems and identify solutions.

METHODS

Employing a community participatory research design, we engaged representatives from 2 communities. They assisted with research design and data analysis, and approved the final manuscript. Using a hermeneutic phenomenological approach and purposeful sampling, we conducted 5 semistructured focus groups between August and December 2021 with community health care teams and patients at risk for, or who had previously undergone, a nontraumatic lower extremity amputation.

RESULTS

Patients' (n = 10) and community health care providers' (n = 18) perspectives indicated that barriers to health care access led to delayed care and increased complications and risk for lower extremity amputations, leading to aggressive procedures upon receiving care. Barriers to care led to negative experiences at urban centres and aggressive procedures created further distrust, leading to care disengagement and poor outcomes. Patients and providers both suggested building stronger partnerships between urban and rural health care providers, improving education for patients and health care providers and identifying innovative strategies to improve patients' overall health.

INTERPRETATION

Systemic changes, health promotional program and reliable on-reserve primary care are needed to create equitable access for First Nation patients at risk for lower extremity amputations. The study results imply that health care delivery for First Nations patients at risk for lower extremity amputations can be improved through stronger partnership and communication between urban and community providers, and continued education and cultural competency training for urban health care providers.

Thoughts and experiences regarding leg amputation among patients with diabetic foot ulcers: A phenomenological study

Despite lower-limb amputation being common among patients with diabetic foot ulcers, few studies have qualitatively investigated the patients' perspectives. Therefore, this study aimed to explore the thoughts and experiences of patients with diabetic foot ulcers regarding lower-limb amputation in Hong Kong. A phenomenological study using individual, semi-structured interviews was conducted with 18 participants with foot ulcers recruited in Hong Kong between July and September 2022. The interviews were audio-recorded, transcribed verbatim, and analysed using an interpretative phenomenological approach and a constant comparison strategy. The results highlighted four substantial themes: (a) coping or being alone and taciturn, (b) altered appearance impacting one's sense of maintaining social relations, (c) thoughts about self-efficacy and encountering a new normal, and (d) the possibility of a reduced gap in physical consequences between the old and new self. This study provided different perspectives of patients with a history of diabetic foot ulcers, even in cases where lower-limb amputation has not yet been performed. The results demonstrate that lower-limb amputation is considered a forbidden topic. This makes it culturally difficult for Chinese patients to discuss the matter with healthcare authorities and family members. Healthcare workers should be aware of how they communicate regarding lower-limb amputation.

Relax to Heal? Perspectives of Patients with Diabetic Foot Ulcers and Health Professionals on Relaxation Sessions for Wound Healing

OBJECTIVE

To explore patients' and healthcare professionals' (HPs') perspectives on the suitability/acceptability of a relaxation intervention, its effects on patients' well-being and diabetic foot ulcer (DFU) healing, and its incorporation into the multidisciplinary management of patients with diabetic foot.

METHODS

This qualitative study was nested within a three-arm pilot randomized controlled trial. Patients with a chronic DFU received four relaxation sessions. Investigators then interviewed patients, physicians, and nurses involved with diabetic foot consultations. Interviews were audio-recorded, transcribed, and analyzed using thematic content analysis.

RESULTS

Five themes emerged from patient's interviews about the suitability/acceptability of the relaxation intervention: perceptions regarding the psychological intervention, distress, the relaxation technique, changes in the patient's life, and changes in DFU/contribution to healing. Three themes emerged from interviews with HPs: perceptions regarding relaxation, changes in the patient, and changes in DFU/healing. Regarding the feasibility of the relaxation intervention, three themes emerged for both patients and HPs: suggested modifications, stressors/difficulties, and impact of COVID-19 pandemic. The utility theme emerged only in HP interviews, with subthemes of patients' distress, psychological interventions, relaxation intervention, and integration of the psychologist in the team.

CONCLUSIONS

These findings provide evidence for the suitability/acceptability, feasibility, and utility of a relaxation intervention in diabetic foot consultations.

Re-Ulceration Is Common in Persons with Diabetes and Healed Foot Ulcer After Participant-Driven Education in Group: A Randomized Controlled Trial

Objective: To compare the number of ulcer-free days during 24 months in persons with diabetes and a healed foot ulcer below the ankle provided with adjusted therapeutic shoes who were given standard information and participated in participant-driven group education compared with standard information alone. Methods: A randomized controlled trial was designed to evaluate the number of ulcer-free days after participant-driven group education in addition to standard information compared with standard information alone. The number needed to treat (N = 174) was not met, as only 138 persons with diabetes and previously healed foot ulcer were recruited (age median 63 years [34-79], 101 men/37 women). Results: A total of 138 persons were recruited, of whom 107 (77.5%) completed the study, 7 (5%) dropped out, and 12 (9%) deceased. No statistically significant difference was found between the intervention group compared with the control group after 6, 18, or 24 months. After 12 months, more patients in the intervention group had developed ulcers. Seventy-seven participants (56%) developed new foot ulcers, irrespective of side and site. Development of one ulcer appeared in 36 participants, two ulcers in 19, and 22 participants developed three ulcers. Forty-eight participants remained ulcer-free (35%) during the 24-month follow-up. Median ulcer-free days until first ulceration were 368 (4-720); until second ulceration, 404 (206-631); and until third ulceration, 660 (505-701). The participants wore prescribed therapeutic shoes during 88% of the follow-up visits. Conclusions: One-third of the participants remained ulcer-free for 24 months. Patient-driven education in groups did not give better results than standard information in this underpowered study. This study illustrates the challenges to perform comparative preventive studies in this group of patients with extensive comorbidity. Further studies are needed to evaluate interventions on ulceration in persons with a healed foot ulcer.

Improving the Management and Treatment of Diabetic Foot Infection: Challenges and Research Opportunities

Diabetic foot infection (DFI) management requires complex multidisciplinary care pathways with off-loading, debridement and targeted antibiotic treatment central to positive clinical outcomes. Local administration of topical treatments and advanced wound dressings are often used for more superficial infections, and in combination with systemic antibiotics for more advanced infections. In practice, the choice of such topical approaches, whether alone or as adjuncts, is rarely evidence-based, and there does not appear to be a single market leader. There are several reasons for this, including a lack of clear evidence-based guidelines on their efficacy and a paucity of robust clinical trials. Nonetheless, with a growing number of people living with diabetes, preventing the progression of chronic foot infections to amputation is critical. Topical agents may increasingly play a role, especially as they have potential to limit the use of systemic antibiotics in an environment of increasing antibiotic resistance. While a number of advanced dressings are currently marketed for DFI, here we review the literature describing promising future-focused approaches for topical treatment of DFI that may overcome some of the current hurdles. Specifically, we focus on antibiotic-impregnated biomaterials, novel antimicrobial peptides and photodynamic therapy.

Albuminuric diabetic kidney disease predicts foot ulcers in type 2 diabetes

Diabetic Foot Ulcers (DFU) are feared among individuals with diabetic kidney disease (DKD), but it is unclear whether they are more frequent, especially in normoalbuminuric DKD. Five hundred and twenty patients admitted in our diabetology ward from 2007 to 2017 were followed up during 54 ± 26 months. New DFUs were registered, and their relationship with the initial renal status was analyzed by LogRank and multivariate Cox regression analysis. The 520 subjects were mainly men (57.9 %), 62 ± 9 years old, with a duration of diabetes of 14 ± 10 years, HbA1c: 8.7 ± 1.8 % (72 ± 19 mmol/mol), and complications: 33.7 % macroangiopathies, 22.1 % previous foot ulcers, 44.8 % DKD, 26.9 % retinopathies. Fifty-seven new DFU occurred, mainly in subjects with DKD. DKD was related to later DFU (HR: 1.79; 95%CI: 1.05-3.07), this relationship stayed significant adjusted for age, gender, and a history of previous DFU (HR: 3.61; 95%CI: 2.11-6.18), and further adjusted for the duration of diabetes, HbA1c, BMI, arterial hypertension, and dyslipidemia. Among the 233 subjects with DKD, 129 (55.3 %) had an isolated AER > 30 mg/24H, 41 (17.6 %) had an isolated eGFR<60 mL/min/1.73 m², and 63 (27.0 %) cumulated both abnormalities. By Cox regression analysis adjusted for age and gender, albuminuric DKDs were related to later DFU: with eGFR≥60: HR: 1.91; 95%CI: 1.02-3.59, with eGFR<60: HR: 2.53; 95%CI: 1.25-5.10, whereas normoalbuminuric DKD was not: HR: 1.04; 95%CI: 0.35-3.07, despite similar rates of neuropathies, peripheral arterial diseases, and retinopathies. In people with type 2 diabetes, albuminuric DKD was associated with two to three folds increased risk of DFUs, whereas normoalbuminuric DKD was not.

The perceptions of living with diabetic foot ulcers: A systematic review and meta-synthesis of qualitative studies

BACKGROUND

Diabetic foot ulcers are associated with decreased quality of life in patients with diabetes and impose a heavy burden on patients, their families, and the health care system. For health providers, a deeper understanding of the perceptions of patients is significant. They can provide better management and direction to patients with diabetic foot ulcers, thus improving their quality of life.

OBJECTIVES

To synthesize the findings of qualitative studies to explore the perceptions of individuals living with diabetic foot ulcers.

DESIGN

A systematic review and meta-synthesis of qualitative studies.

METHODS

Published qualitative research articles were identified in PubMed, CINAHL, Embase, ISI Web of Science, Ovid, and Scopus from inception to January 2022, and bibliographical reports were reviewed. In addition, combing with the search for unpublished studies in the Google Scholar ProQuest Dissertations and Theses Database, we conducted a meta-synthesis.

RESULTS

Fourteen articles were eligible for inclusion, and the total number of included individuals was 226, with ages ranging from 28 to 84 years. The perceptions of individuals with diabetic foot ulcers synthesized four overarching themes and their subthemes: perceptions of diabetic foot ulcers (Realization, Reasons), living with diabetic foot ulcers (Change in life, Physical burdens, Emotional burdens, Economic burdens), coping with diabetic foot ulcers (Hospital attendance, Attitude toward amputation, Treatment, Management), and expectations (Expectation of health-personnel, Future expectation).

CONCLUSIONS

Individuals with diabetic foot ulcers suffer greatly in their physical, psychological, and social aspects. Comprehensive and individualized patient-centered care and appropriate families and social support for patients with diabetic foot ulcers should be provided.

A Deep Learning Approach for Diabetic Foot Ulcer Classification and Recognition

Diabetic foot ulcer (DFU) is one of the major complications of diabetes and results in the amputation of lower limb if not treated timely and properly. Despite the traditional clinical approaches used in DFU classification, automatic methods based on a deep learning framework show promising results. In this paper, we present several end-to-end CNN-based deep learning architectures, i.e., AlexNet, VGG16/19, GoogLeNet, ResNet50.101, MobileNet, SqueezeNet, and DenseNet, for infection and ischemia categorization using the benchmark dataset DFU2020. We fine-tune the weight to overcome a lack of data and reduce the computational cost. Affine transform techniques are used for the augmentation of input data. The results indicate that the ResNet50 achieves the highest accuracy of 99.49% and 84.76% for Ischaemia and infection, respectively.

Cost-effectiveness of Novel Macrophage-Regulating Treatment for Wound Healing in Patients With Diabetic Foot Ulcers From the Taiwan Health Care Sector Perspective

IMPORTANCE

Diabetic foot ulcers (DFUs) and subsequent amputation incur enormous health and economic burdens to patients, health care systems, and societies. As a novel macrophage-regulating drug, ON101 is a breakthrough treatment for DFUs, which demonstrated significant complete wound healing effects in a phase 3 randomized clinical trial, but its economic value remains unknown.

OBJECTIVE

To assess the cost-effectiveness of an ON101 cream added on to general wound care (GWC; ie, conventional treatments for DFUs, which comprised initial and regular foot examinations, ulcer management, comorbidity control, patient education, and multidisciplinary care) vs GWC alone for DFUs from the Taiwan health care sector perspective.

DESIGN, SETTING, AND PARTICIPANTS

This economic evaluation used a hypothetical cohort of patients with diabetes, with characteristics mirroring those of the participants in the ON101 trial. A Markov state-transition simulation model was constructed to estimate costs and health outcomes associated with the ON101 with GWC and GWC alone strategies over a 5-year time horizon, discounting costs and effectiveness at 3% annually. Costs were in 2021 US dollars. Data were sourced from the ON101 trial and supplemented from published literature. Deterministic and probabilistic sensitivity analyses were performed to assess the uncertainty of input parameters and study generalizability. The analysis was designed and conducted from September 1, 2020, to January 31, 2022.

EXPOSURES

ON101 with GWC vs GWC alone.

MAIN OUTCOMES AND MEASURES

DFU-related complications, costs, quality-adjusted life-years (QALYs), and incremental cost-effectiveness ratio.

RESULTS

Patients in the hypothetical cohort had a mean age of 57 years and an uninfected DFU of 1 to 25 cm2 that was present for 4 or more weeks with a Wagner grade of 1 or 2. Over 5 years, the ON101 with GWC group vs the GWC alone group experienced more healing events, stayed for a longer time in the healing state, and had fewer infected DFUs, gangrene, and amputations (eg, 2787 additional healing events and 2766 fewer infected DFU, 72 fewer amputation, and 7 fewer gangrene events in the ON101 with GWC group vs GWC alone group). The ON101 with GWC strategy vs GWC alone yielded an additional 0.038 QALYs at an incremental cost of $571, resulting in $14 922/QALY gained. Economic results were most sensitive to healing efficacy, drug cost, and health utility of the healing state. Cost-saving results were observed in patient subgroups with poor glycemic control, larger ulcer sizes, longer ulcer durations, and current smoking. The ON101 with GWC strategy was considered cost-effective in 60% to 82% of model iterations against willingness-to-pay thresholds of $32 787/QALY gained to $98 361/QALY gained.

CONCLUSIONS AND RELEVANCE

In this economic evaluation study using a simulated patient cohort, the ON101 with GWC strategy represented good value compared with GWC alone for patients with DFUs from the Taiwan health care sector perspective and may be prioritized for those with high risks for disease progression of DFUs.

A vicious cycle: employment challenges associated with diabetes foot ulcers in an economically marginalized Southwest US sample

Aim

To describe patients' reported employment challenges associated with diabetic foot ulcers (DFUs).

Methods

Fifteen patients from under-resourced communities in Southern Arizona, with a history of DFUs and/or amputations, were recruited from a tertiary referral center from June 2020 to February 2021. Participants consented to an audio-recorded semi-structured phone interview. Interviews were transcribed and thematically analyzed using the Dedoose data analysis platform.

Results

Participants shared a common theme around the cyclic challenges of DFU prevention/management and employment. Those employed in manual labor-intensive jobs or jobs requiring them to be on their feet for long durations of time believed working conditions contributed to the development of their DFUs. Patients reported work incapacity due to declines in mobility and the need to offload for DFU management. Many expressed frustration and emotional distress related to these challenges noting that DFUs resulted in lower remuneration as medical expenses increased. Consequently, loss of income and/or medical insurance often hindered participants' ability to manage DFUs and subsequent complications.

Conclusion

These data illuminate the vicious cycle of DFU and employment challenges that must be addressed through patient-centered prevention strategies. Healthcare providers should consider a person's contextual factors such as employment type to tailor treatment approaches. Employers should establish inclusive policies that support patients with DFUs returning to work through flexible working hours and adapted work tasks as needed. Policymakers can also mitigate employment challenges by implementing social programs that provide resources for employees who are unable to return to work in their former capacity.

Diabetes-Related Lower Extremity Amputations in Romania: Patterns and Changes between 2015 and 2019

Lower extremity amputations (LEAs) are a feared complication of diabetes mellitus (DM). Here we evaluated the recent trends in DM-related LEAs in Romania. We collected data from a national database regarding minor and major LEAs performed between 2015 and 2019 in patients with DM admitted to a public hospital. Absolute numbers of LEAs were presented by year, diabetes type, sex and age; incidence rates of LEAs in the general population were also calculated. Over the study period, 40,499 LEAs were recorded nationwide (83.16% in persons with type 2 DM [T2DM]); on average, the number of LEAs increased by 5.7%/year. This trend was driven by an increased number of LEAs in patients with T2DM; in patients with type 1 DM (T1DM), LEAs decreased over the study period. In patients with T2DM, the increase in minor LEAs was more pronounced than that in major LEAs. The overall number of LEAs showed an increasing trend with age (r = 0.72), which was most pronounced in patients aged ≥70 years. Men had a higher frequency of LEAs than women, regardless of DM type. These data support renewed efforts to prevent and decrease the burden of amputations among patients with DM.

A scoping review protocol to map the evidence on the risks and benefits of population based diabetic foot screening

Background: Diabetic foot ulcers are one of the most common lower extremity complications of diabetes, with the lifetime risk of a person developing a DFU estimated to be as high as 34%. It is recommended that those with diabetes receive an annual review of their feet, by a trained healthcare professional, to identify risk factors for ulceration and allow for subsequent risk stratification, patient education and provision of appropriate care to prevent ulceration and amputation. Internationally, while many countries have a diabetic foot care pathway, it is not a structured population health screening programme unlike other areas of preventive care for people with diabetes such as retinopathy screening. A structured diabetic foot screening pathway could allow for earlier identification of the at-risk foot. However, the introduction of any population screening programme should meet the Wilson and Jungner principles of screening. This paper presents a protocol for a scoping review of existing evidence on screening for the at-risk-foot against the Wilson and Junger principles. Methods: The scoping review will be conducted in line with the six-stage methodological framework by Arksey & O'Mally and the Joanna Briggs Institute (JBI) scoping review methodology. Medline (EBSCO), Scopus, ScienceDirect and EMBASE databases will be searched. Studies relating to the burden of diabetic foot ulcers, their pathophysiology and screening tests for peripheral neuropathy and peripheral artery disease, and screening programmes will be included. A data extraction tool will be used to facilitate a chronological narrative synthesis of results. Results: These will be reported in line with the Preferred Reporting Items for Systematic Reviews and Meta-analyses extension for Scoping Reviews (PRISMA-ScR). Conclusion: This scoping review will evaluate and map the evidence surrounding diabetic foot ulcers using the Wilson and Jungner principles of screening as a framework.

Correlation Between Bacteria Count Using a Rapid Bacterium Counting System and Changes in Wound Area on Diabetic Foot Ulcers in Indonesia: A Prospective Study

This study aimed to clarify the correlation between changes in bacterial number and wound area in diabetic foot ulcers (DFUs). This study used a prospective longitudinal cohort design. A total of 30 participants met the inclusion criteria. Changes in bacterial number and wound area were evaluated weekly until week 4. The chi-square test indicated no significant correlation between biofilm formation and wound area (p = 0.32) but a significant correlation between bacterial count and wound area (p = 0.05). Logistic regression analysis showed a significant correlation between bacterial count and changes in wound area (odds ratio, 0.60; 95% confidence interval [CI], 0.372-0.997; p = 0.04). The receiver operating characteristic analysis showed an area under the curve of 0.660 (95% CI, 0.52-0.79; p = 0.03) with a sensitivity of 97% and specificity of 88%. The present prospective longitudinal cohort study demonstrated the correlation between bacterial count changes and wound area in DFUs. Our results suggest that changes in bacterial count could help wound healing evaluations.

The patient's perspective of diabetic foot ulceration: A phenomenological exploration of causes, detection and care seeking

AIMS

Diabetic foot ulceration can contribute to lowered life expectancy and quality of life for people with diabetes, and yet, scant attention has been given to improving preventive and educational measures. This article uses a phenomenological approach to explore individuals' lived experiences of diabetic foot ulcerations to explore factors that can be harnessed to achieve improved outcomes.

DESIGN

This was a qualitative study using semi-structured interviews grounded in a phenomenological framework to explore how patients perceive and understand their foot problems.

METHODS

Study participants were recruited from February 2020 to February 2021 from a tertiary referral centre that treats foot problems in persons with diabetes. A total of 15 Hispanic, Native American and White patients participated in the study. We conducted in-depth semi-structured interviews which were audio recorded with the participant's consent. Interview data were transcribed and analysed with Dedoose data management software.

RESULTS

Analysis revealed findings in two primary domains: (1) how patients perceive foot ulceration, with themes around limited understandings of foot ulceration, close sensory observation of foot problems and barriers to ulcer perception and (2) how patients experience the timing of foot ulceration, with themes on how time perceptions shifted as foot problems became more serious, which correlated closely to how patients responded to their foot problems.

CONCLUSION

Despite the close sensory observation of their feet, people with diabetes face an array of barriers to recognizing and understanding the implications of diabetic foot ulceration, which can lead to delayed care seeking. Nurses can play a critical role in promoting patient education and improving patient self-management of foot ulcers.

IMPACT

This phenomenological study offers important lessons to guide nurses and other providers in enhancing patient self-management of DFUs and improving care outcomes by expanding an understanding of DFU early warning signs, the imperative to seek medical care quickly, and addressing possible barriers.

The role of CXCL8 in chronic nonhealing diabetic foot ulcers and phenotypic changes in fibroblasts: a molecular perspective

INTRODUCTION

A persistent inflammation is perpetuated by infiltrating immune cells and cytokines secreted from these immune cells. Additionally, apoptotic keratinocytes and adipocytes in diabetes causes diabetic foot ulcer (DFU) to arrest in an inflammatory phase without progressing to the resolution phase. This leads to a nonhealing DFU and, despite advanced treatments consisting of wound debridement, off-loading the ulcer of necrotic tissue, wound dressings to keep it moist and control exudate, medication, and preventing infection, DFUs remain a clinical problem. Nonhealing DFUs pose not only an economic burden but also increased morbidity and mortality in the form of psychological stress with and increased chance of amputation, and even death. Thus, investigating the complicated underlying molecular mechanism responsible for nonhealing patterns and designing better therapeutics is warranted. This review article focuses on the role of IL-8-mediated persistent inflammation and phenotypic change of fibroblasts due to this inflammatory cascade. We have discussed various sources of interleukin (IL)-8 secretion and the possible association of IL8-fibroblast plasticity as a cause of nonhealing DFUs.

MATERIAL AND METHODS

A literature search on PubMed, Google Scholar, and PMC was done including the terms diabetic foot ulcer, diabetes, diabetic ulcer, chronic inflammation, interleukin 8, diabetic wound, and nonhealing diabetic foot ulcers. The articles in the English language and published in last 10 years were selected. From the pool of these, the articles describing the relationship between IL-8 and nonhealing diabetic foot ulcer and diabetic ulcer were used sorted out and used for this review article following PRISMA guidelines.

CONCLUSION

Increased infiltration of inflammatory immune cells, secretion of pro-inflammatory cytokines, altered keratinocyte-fibroblast function, and phenotypic changes of fibroblasts in DFUs seem to be critical to the nonhealing of DFUs. Thus, inhibiting IL-8 secretion and downstream signaling seems to be a goal of potential therapeutics.

Characteristics of Diabetic Foot Ulcer Patients Pre- and During COVID-19 Pandemic: Lessons Learnt From a National Referral Hospital in Indonesia

Background:

Diabetic foot ulcer (DFU) is one of the most terrifying diabetic complications for patients, due to the high mortality rate and risk for amputation. During the COVID-19 pandemic, many diabetic patients limited their visits to the hospital, resulting in delays for treatment especially in emergency cases.

Objective:

This study aimed to compare the characteristics of patients with DFU pre- and during COVID-19 pandemic period. Methods: This study was a retrospective cohort study using foot registry data. We compared our patients’ characteristics pre-COVID-19 pandemic period (1 March 2019-28 February 2020) and during COVID-19 pandemic period (1 March 2020-28 February 2021).

Results:

Cohorts of 84 and 71 patients with DFU pre- and during COVID-19 pandemic period, respectively, were included in this study. High infection grade (66.7% vs 83.1%, P = .032), osteomyelitis event (72.6% vs 87.3%, P = .04), leukocyte count (15 565.0/μL vs 20 280.0/μL, P = .002), neutrophil-to-lymphocyte ratio (7.7 vs 12.1, P = .008), waiting time-to-surgery (39.0 h vs 78.5 h, P = .034), and number of major amputation (20.2% vs 39.4%, P = .014) were significantly higher during the COVID-19 pandemic period.

Conclusion:

During the COVID-19 pandemic, patients with DFU had more severe infection, higher proportion of osteomyelitis, longer waiting time for getting surgical intervention, and higher incidence of major amputation.