Effectiveness of interventions to enhance healing of chronic foot ulcers in diabetes: a systematic review.

The management of diabetic foot ulcers (DFU) remains a challenge, and there is continuing uncertainty concerning optimal approaches to wound healing. The International Working Group of the Diabetic Foot (IWGDF) working group on wound healing has previously published systematic reviews of the evidence in 2008, 2012 and 2016 to inform protocols for routine care and to highlight areas which should be considered for further study. The working group has now updated this review by considering papers on the interventions to improve the healing of DFU's published between June 2014 and August 2018. Methodological quality of selected studies was independently assessed by a minimum of two reviewers using the recently published 21-point questionnaire as recommended by IWGDF/European Wound Management Association, as well as the previously incorporated Scottish Intercollegiate Guidelines Network criteria. Of the 2275 papers identified, 97 were finally selected for grading following full text review. Overall, there has been an improvement in study design and a significant rise in the number of published studies. While previous systematic reviews did not find any evidence to justify the use of newer therapies, except for negative pressure wound therapy in post-surgical wounds, in this review we found additional evidence to support some interventions including a sucrose-octasulfate dressing, the combined leucocyte, fibrin and platelet patch as well as topical application of some placental membrane products, all when used in addition to usual best care. Nonetheless, the assessment and comparison of published trials remains difficult with marked clinical heterogeneity between studies: in patient selection, study duration, standard of usual care provision and the timing and description of the clinical endpoints.

Guidelines on use of interventions to enhance healing of chronic foot ulcers in diabetes (IWGDF 2019 update).

The International Working Group on the Diabetic Foot (IWGDF) has published evidence-based guidelines on the prevention and management of diabetic foot disease since 1999. In conjunction with advice from internal and external reviewers and expert consultants in the field, this update is based on a systematic review of the literature centred on the following: the Population (P), Intervention (I), Comparator (C) and Outcomes (O) framework; the use of the SIGN guideline/Cochrane review system; and the 21 point scoring system advocated by IWGDF/EWMA. This has resulted in 13 recommendations. The recommendation on sharp debridement and the selection of dressings remain unchanged from the last recommendations published in 2016. The recommendation to consider negative pressure wound therapy in post-surgical wounds and the judicious use of hyperbaric oxygen therapy in certain non-healing ischaemic ulcers also remains unchanged. Recommendations against the use of growth factors, autologous platelet gels, bioengineered skin products, ozone, topical carbon dioxide, nitric oxide or interventions reporting improvement of ulcer healing through an alteration of the physical environment or through other systemic medical or nutritional means also remain. New recommendations include consideration of the use of sucrose-octasulfate impregnated dressings in difficult to heal neuro-ischaemic ulcers and consideration of the use of autologous combined leucocyte, platelet and fibrin patch in ulcers that are difficult to heal, in both cases when used in addition to best standard of care. A further new recommendation is the consideration of topical placental derived products when used in addition to best standard of care.

Biological basis of diabetic foot wounds.

The steps to achieving a healthy healing wound include a correct diagnosis, ensuring a good local blood supply, debriding the wound to reveal a clean base, correcting the biomechanical abnormality, and nurturing the wound until it shows signs of healing. Debridement should be performed as often as necessary until the wound is deemed clean and ready for reconstruction. The repair is then dictated by how much of the foot remains post-debridement and how the foot can be closed in the most biomechanically stable construct possible. The subsequent reconstruction can then usually be accomplished by simple techniques most of the time, and with complex flap reconstruction in about 10% of cases. Wound healing adjuncts such as growth factor, cultured skin, and hyperbaric oxygen can be helpful adjuncts.

Optimizing Technology Use for Chronic Lower-Extremity Wound Healing: A Consensus Document.

Innovations in technology are used in managing chronic wounds. Despite the wide range of technologies available, healing of chronic wounds remains variable. In this paper, the authors offer an evidence based approach to the use of technology for diagnosis and management based on the concept of standardised care.