HWN Suggests

Diagnosis and Management of Diabetic Foot Infections

So, what does the future hold for the treatment of infected DFUs? It is widely accepted that the number of infected DFUs requiring treatment will continue to increase, driven by the expanding number of diabetic and elderly patients. In the short term, emerging technologies to detect bacteria (e.g., MolecuLight i:X; Smith & Nephew, Hertfordshire, UK) will be essential to guide treatment. In the next 10 years or so, there will likely be widespread implementation of point-of-care microbiota profiling methodologies in clinics. With these methods, bacterial community–level genetic resistance profiling will revolutionize the ways in which we diagnose, manage, and treat infection. Ultimately, we…

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  Diabetic Foot Infections - Management

Deciding upon an empiric antibiotic regimen for diabetic foot infection is challenging, but understanding some basic principles can guide clinicians. An important place to start is to realize that about half of diabetic foot wounds have no clinical evidence of infection. Some believe that the presence of a high density of organisms, usually defined as >105 per gram of tissue, represents “critical colonization” that may require antibiotic therapy, but the few published trials of antibiotic therapy for uninfected lesions do not support this practice. Thus, clinically uninfected wounds generally require neither a culture nor antibiotic therapy.

 Top 10 Antibiotics For Managing Diabetic Foot Infections

In the diabetic foot, we use vancomycin (Vancocin, ViroPharma) parenterally as an empiric therapy due to its narrow spectrum, which covers aerobic Gram-positive organisms. Physicians should use vancomycin empirically in conjunction with other agents.

Articles of Interest

Antibiotics to treat foot infections in people with diabetes

The evidence for the relative effects of different systemic antibiotics for the treatment of foot infections in diabetes is very heterogeneous and generally at unclear or high risk of bias. Consequently it is not clear if any one systemic antibiotic treatment is better than others in resolving infection or in terms of safety. One non-inferiority trial suggested that ertapenem with or without vancomycin is more effective in achieving clinical resolution of infection than tigecycline. Otherwise the relative effects of different antibiotics are unclear.

Clinical Pathway for the Management of Diabetic Foot Infections in the Emergency Department

The diabetic foot ulceration clinical pathway incorporates facets of the most recent evidence-based guidelines into a simple flowchart diagram, directing the clinician in the acute setting to appropriately triage the severity of the ulcer, obtain the proper surgical evaluation when necessary, and potentially avoid unwarranted and prolonged hospitalization.

Diabetes-related foot infections: An update on the latest guidelines

We propose reducing the duration of the antibiotic therapy to 10 days in patients with severe or moderate soft-tissue infections of the foot following surgical debridement.

Diabetic Foot Infections: An Update on Treatment

Foot infections are a common and serious complication of diabetes. While gram-positive cocci—particularly staphylococci and streptococci—are the most common causes of mild-to-moderate infections, mixed gram-positive cocci and gram-negative bacilli with or without anaerobic organisms tend to cause chronic infections. Mild infections should be treated on an outpatient basis with oral antibiotics directed against staphylococci and streptococci, and severe infections should be treated initially with broad-spectrum parenteral antibiotics on an inpatient basis.

Diabetic foot infections: stepwise medical and surgical management

Staphylococcus aureus is the most common isolate in these infections; the increasing incidence of methicillin‐resistant S. aureus over the past two decades has further complicated antibiotic treatment. While chronic infections are often polymicrobial, many acute infections in patients not previously treated with antibiotics are caused by a single pathogen, usually a gram‐positive coccus. We offer a stepwise approach to treating diabetic foot infections.

Diabetic Foot Infections: The Diagnostic Challenges

An accurate identification and differentiation among different types of DFI still represent a challenge for the clinician. The appeal to multimodality imaging and a multidisciplinary approach are mandatory in order to plan the most appropriate therapeutic strategy for the single patient. Several radiological and NM approaches are available, being MRI, radio labelled WBC scintigraphy, and [18F]FDG PET/CT the most appropriate, but larger multicenter studies are still needed in order to create standardized diagnostic flow charts that could be applied worldwide.

Evaluation and Management of Diabetes-related Foot Infections

In this narrative review, we bring together experts in infectious diseases, endocrinology, podiatry, and vascular surgery to discuss shared decision-making in DFI care. We provide a focused overview of the comprehensive management of these patients, highlighting modern research spearheaded by our surgical colleagues and contemporary guidance from the International Working Group for the Diabetic Foot (IWGDF), arguably the lingua franca of DFI specialists. Finally, we offer best practices for clinician–clinician and patient–clinician shared decision-making.

Fungal infection of the diabetic foot: The often ignored complication

Fungal infections of the foot in people with diabetes should not be ignored. They potentially have a role in the pathogenesis of ulceration; the literature suggests a high risk of secondary bacterial infection. Treatment should be initiated early to prevent spread, and preventative measures should be used to avoid infection and re-infection. Treatment must involve careful consideration of the person’s comorbidities and other medications.

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.

The Diabetic Foot Infection: When and What Types of Antibiotics are Warranted?

Infected wounds may be cultured from an appropriate tissue specimen. While culture collection may not occur in the ED, it is important to note that if cultures are obtained, tissue should only be collected from wounds only after they have been cleaned and debrided prior to starting antibiotics. Cultures from wound swabs and/or drainage is not recommended!

Topical antimicrobial agents for treating foot ulcers in people with diabetes

Topical antimicrobial therapy also has some potential disadvantages: few agents have been proven to be effective in clinical trials; almost all have minimal penetration of intact skin or soft tissue, limiting use to open wounds that do not have either cellulitis or deep soft‐tissue infection...