Effectiveness of two bundles in venous leg ulcer healing: A randomized controlled trial.

The objective of this study was to compare the effectiveness of 2 bundles in venous leg ulcer healing. This study is a open, randomized, controlled clinical trial with parallel treatment, 1:1 allocation rate, and 24-week follow-up. Twenty-eight patients with venous leg ulcers of the lower limbs were allocated to 2 groups: group A (n = 14) and group B (n = 14). The mean age of the participants was 59.67 ± 11.95 years, and the mean ulcer surface area was 29.32 (±98.43) cm2. The primary outcome was ulcer healing. Secondary outcomes were wound area reduction rate, Pressure Ulcer Scale of Healing (PUSH) scores, and the presence and intensity of pain before, during and after dressing change. Two different bundles were applied in 2 phases to the randomized groups. All participants engaged in an educational activity, performed exercises, rested with legs elevated, received oral nutrition supplementation (Cubitan; Danone Nutricia), and had their ulcers cleaned with warm saline solution and biguanide polyhexanide solution (Prontosan; B. Braun). Topical therapy in the first phase was papain 2% or 4% for group A and 2% hydrogel for group B. Both groups received single-layer elastic compression therapy (SurePress; ConvaTec). In the second phase, group A received compression therapy with Unna boot (Viscopaste; Smith-Nephew) as the primary dressing, while group B received a cellulose membrane (Membracel; Vuelo Pharma) followed by the Unna boot (Viscopaste; Smith-Nephew).In group A, 71.42% of the ulcers healed; in group B, the figure was 64.28%. Wound area, PUSH scores, and the occurrence and intensity of pain decreased significantly and equivalently in groups A and B.Both bundles are effective in the treatment of venous leg ulcers and pain relief.

Adipose tissue stromal vascular fraction in the treatment of full thickness burns in rats.

PURPOSE:: To analyze the healing effects of stromal vascular fraction (SVF) application compared to wound dressing with 2% silver sulfadiazine in full thickness burn wounds in rats. METHODS:: Animals were divided into two groups: 2% silver sulfadiazine group and SVF group. Both groups received occlusive bandages while the first one was treated with 2% silver sulfadiazine and the latter was treated with injections of SVF prepared from adipose tissue extracted from an animal donor. The animals were accompanied through 3, 7 and 30 days for evaluation of macroscopic, microscopic and morphometric aspects. RESULTS:: On day three, a significant increase (p<0.05) of infiltration of polymorphonuclear, fibrin formation and fibroblasts migration in SVF group was observed. On the 7th day the mononuclear infiltrate, angiogenesis, collagen and fibroblasts were significantly increased in the SVF group (p<0.05). At 30 days significantly increased collagen deposition was observed in the SVF group (p<0.05) . CONCLUSION:: Adipose tissue derived stromal vascular fraction injections promotes better wound repair than 2% silver sulfadiazine in the treatment of full thickness burn in rats during the evaluated experimental period.

Adipose tissue stromal vascular fraction in the treatment of full thickness burns in rats

ABSTRACT PURPOSE: To analyze the healing effects of stromal vascular fraction (SVF) application compared to wound dressing with 2% silver sulfadiazine in full thickness burn wounds in rats. METHODS: Animals were divided into two groups: 2% silver sulfadiazine group and SVF group. Both groups received occlusive bandages while the first one was treated with 2% silver sulfadiazine and the latter was treated with injections of SVF prepared from adipose tissue extracted from an animal donor. The animals were accompanied through 3, 7 and 30 days for evaluation of macroscopic, microscopic and morphometric aspects. RESULTS: On day three, a significant increase (p<0.05) of infiltration of polymorphonuclear, fibrin formation and fibroblasts migration in SVF group was observed. On the 7th day the mononuclear infiltrate, angiogenesis, collagen and fibroblasts were significantly increased in the SVF group (p<0.05). At 30 days significantly increased collagen deposition was observed in the SVF group (p<0.05) . CONCLUSION: Adipose tissue derived stromal vascular fraction injections promotes better wound repair than 2% silver sulfadiazine in the treatment of full thickness burn in rats during the evaluated experimental period.