Abstract

VERDU SORIANO, José et al. Effect of a specific nutritional supplement (Balnimax^®) on lower extremity ulcers of venous etiology and pressure ulcers. Gerokomos [online]. 2016, vol.27, n.1, pp.27-32. ISSN 1134-928X.

Objective: To evaluate a specific oral nutritional supplement, Balnimax^® (alfa-lipoic acid, L-arginine, L-methionine, vitamin B complex, vitamin E and selenium) along with daily clinical practice on the healing of pressure and venous leg ulcers. Method: a multicentre, prospective, single-group, repeated measures and post-authorization study was carried out with pressure and venous leg ulcers' patients without signs of local infection, to be treated for up to 8 weeks. Measures were recorded at baseline, 2, 4, 6 and 8 weeks. The patients received a tablet orally twice daily with meals. The primary outcome variable was the percentage of wound size reduction. We also analysed the complete healing. The sample size calculation was determined to compare the results against a reference value. 127 subjects would be required to detect a difference equal to or above 15%. It was assumed that the percentage of wound reduction was 57%. We estimated a loss rate of up to 10%. Results: 112 patients with 133 wounds were included and finished the study (16.0% had 2 or more wounds), with a mean age of 74.2±12.0 (median: 77, extremes: 35-94). 69.8% were women, most of them ambulatory patients (98.4%). In 9% proteases modulators were used and in only 27.2% was applied a multilayer compression therapy. 58 (43.6%) ulcers healed during the study period. The evolution of wound size and percentage reduction was, statistically significant (p ≤ 0.001), decreasing over time period. It was a statistical significant difference (p ≤ 0.001) between the results and the reference value. Conclusions: Despite the possible methodological flaws due to a single-group study, the supplement studied seems to be an effect over healing. The results are better than previous published with other nutritional supplements or with moist wound healing only.

Keywords : nutritional supplements; healing; pressure ulcers; venous ulcers.

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