Negative Pressure Wound Therapy for Complicated Diabetic Foot Wounds
Summary: This retrospective case series assesses negative pressure wound therapy (NPWT) in 30 diabetic patients with complicated foot or lower limb infections over 15 years. Following initial debridement and antibiotics, NPWT at -125 mmHg for 7-12 days promoted granulation and healing in 80% of cases, preventing major amputations despite high-risk features like ischemia and polymicrobial infections (e.g., MRSA, E. coli). Five patients (16.6%) required major amputations, and one died. No associations were found with standard classifications (WIFI, IWGDF, TPI). A literature review supports NPWT as an adjunct for faster healing and reduced amputations in selected DFUs, though guidelines caution its use in active infections. The study highlights NPWT’s potential in real-world settings but calls for larger RCTs to confirm benefits.
Key Highlights:
- NPWT achieved limb preservation in 80% of high-risk diabetic wounds, with 20% fully healing via grafts or sutures.
- Common pathogens like MRSA and E. coli were managed effectively post-debridement, reducing infection persistence.
- Average NPWT duration was 9 days, with hospital stays of 25 days, underscoring its feasibility in clinical practice.
- Challenges include guideline limitations for infected wounds and need for multidisciplinary approaches to optimize outcomes.
- Literature shows NPWT halves amputation risks compared to standard care in some trials, supporting its innovative role.
Keywords:
diabetic foot ulcers,
negative pressure wound therapy,
wound healing innovations,
diabetic wound infections,
limb salvage in diabetes