Impact of oral nutritional supplement composition on healing of different chronic wounds: A systematic review.

Chronic wounds are characterized by prolonged non-healing, significantly affecting patients' quality of life. Oral formulas may enhance the wound healing process and contribute to cost reduction in care. This review aimed to evaluate the effects of oral nutritional supplementation on chronic wound healing and provide insights into formula characteristics. A comprehensive search across Cinahl, Embase, PubMed, and Web of Science databases yielded nine studies from the past decade involving 741 patients ages 52 to 81.7 across various care settings: hospitals, long-term care facilities, and home care. Primary wound types included pressure injuries (58%), diabetic foot ulcers (40%), and venous ulcers (2%). The intervention duration ranged from 2 to 16 wk, with sample sizes varying from 24 to 270 patients. Notably, four studies reported a reduction in wound area and an increased healing rate with a hypercaloric, hyperproteic formula enriched with zinc and vitamins A, C, and E. However, two studies found no significant differences compared with control groups. Two other studies investigated a combination of arginine, glutamine, and ß-hydroxy-ß-methylbutyrate; however, they did not yield significant results, and one study favored a hyperproteic formula instead of a hyperproteic formula with arginine. This review provides evidence supporting the potential of oral nutritional supplementation to enhance the healing process of chronic wounds. Based on our findings, a desirable formula should be characterized by a high calorie and protein content and the inclusion of antioxidant micronutrients, including, but not limited to, vitamins A, E, C, and zinc.

Supplementation with eicosapentaenoic acid and docosahexaenoic acid reduces high levels of circulating proinflammatory cytokines in aging adults: A randomized, controlled study.

BACKGROUND: High levels of circulating proinflammatory cytokines are characteristic of inflammaging, a term coined to describe age-related chronic systemic inflammation involved in the etiology of many age-related disorders including nonhealing wounds. Some studies have shown that supplementing diets with n-3 polyunsaturated fatty acids (eicosapentaenoic acid [EPA] and docosahexaenoic acid [DHA]) lowers systemic levels of key proinflammatory cytokines associated with inflammaging. However, findings from the few studies that have focused exclusively on older adults are inconclusive. As such, the objective of this randomized controlled study was to test the effects of EPA+DHA therapy on circulating levels of proinflammatory cytokines in adults in middle to late adulthood. METHODS: Plasma levels of fatty acids and interleukin (IL)-6, IL-1ß and tumor necrosis factor-α (TNF-α) were measured in 35 participants with chronic venous leg ulcers (mean age: 60.6 years) randomnly assigned to 8 weeks of EPA+DHA therapy (2.5 g/d) or placebo therapy. RESULTS: EPA+DHA therapy had a significant lowering effect on levels of IL-6, IL-1ß and TNF-α after 4 weeks of therapy and an even greater lowering effect after 8 weeks of therapy. Further, after adjusting for baseline difference, the treatment group had significantly lower levels of IL-6 (p = 0.008), IL-1ß (p < 0.001), and TNF-α (p < 0.001) at Week 4 and at Week 8 [IL-6 (p = 0.007), IL-1ß (p < 0.001), and TNF-α (p < 0.001)] compared to the control group. CONCLUSION: Adults in middle to late adulthood receiving EPA+DHA therapy demonstrated significantly greater reductions in circulating levels of proinflammatory cytokines compared with those receiving placebo therapy. EPA+DHA therapy may be an effective low-risk dietary intervention for assuaging the harmful effects of inflammaging.

Nutrition and Lower Extremity Ulcers: Causality and/or Treatment.

The association between malnutrition, impaired wound healing, and the presence of chronic wounds has been recognized for a long time. It is widely believed that the lack of adequate nutrition increases the risk of developing wounds which have a great likelihood of progressing to chronicity due to lack of appropriate healing responses. This risk is particularly high in the aging population. For the individual patient, as well as patient populations, the diagnosis of malnutrition has been in dispute; further, there is lack of agreement of when and how to intervene nutritionally in those with wounds or healing deficits. This article examines the relationship of nutritional status with the presence and clinical evolution of leg ulcers in humans, focusing on diabetic and venous leg ulcers; we will further review the effect of nutritional therapy on the outcome of these ulcers.

EPA + DHA supplementation reduces PMN activation in microenvironment of chronic venous leg ulcers: A randomized, double-blind, controlled study.

Sustained high levels of activated polymorphonuclear leukocytes (PMNs) and PMN-derived proteases in the microenvironment of chronic venous leg ulcers (CVLUs) are linked to chronic inflammation and delayed healing. Uncontrolled PMN activity eventually destroys newly developed tissue and degrades critical growth factors. The bioactive components of fish oil (n-3 eicosapentaenoic acid [EPA] and docosahexaenoic acid [DHA]) have strong inflammation-resolving actions and have been shown to assuage PMN activity, but have not been tested in CVLU patients. This randomized controlled study compared the effectiveness of oral EPA + DHA therapy to a placebo for reducing PMN activation in CVLU microenvironments. At Days 0, 28, and 56, markers of PMNs (CD15) and activated PMNs (CD66b), and levels of PMN-derived proteases human neutrophil elastase and matrix metalloproteinase-8 were measured in CVLU fluid from patients receiving standard compression therapy and (1) EPA + DHA therapy (n = 16) or (2) placebo (n = 19). By Day 56, the EPA + DHA Group had a significantly lower percentage of CD66b+ cells in CVLU fluid compared to Day 0 (p = 0.02) and to Day 28 (p = 0.05). Importantly, there were downward trends in levels of both matrix metalloproteinase-8 and human neutrophil elastase over time in the EPA + DHA Group, which also demonstrated greater reductions in wound area by Day 28 (57% reduction) and Day 56 (76% reduction) than the Control Group (35% and 59%, respectively). Moreover, reductions in wound area had significant negative relationships with CD15+ cells in wound fluid at Days 28 (p = 0.008) and 56 (p < 0.001), and CD66b+ cells at Days 28 (p = 0.04) and 56 (p = 0.009). The collective findings provide supplemental evidence that high levels of activated PMNs in CVLU microenvironments inhibit healing, and suggest that EPA + DHA oral therapy may modulate PMN activity and facilitate healing of CVLUs when added to standard care regimens.

Efecto de un suplemento nutricional específico (Balnimax(R)) en la cicatrización de úlceras de la extremidad inferior de etiología venosa y úlceras por presión / Effect of a specific nutritional supplement (Balnimax(R)) on lower extremity ulcers of venous etiology and pressure ulcers

Objetivo: evaluar un suplemento nutricional específico, Balnimax(R) (ácido alfa-lipoico, L-arginina, L-metionina, complejo de vitamina B, vitamina E y selenio) junto con la práctica clínica diaria en la cicatrización de las úlceras por presión y úlceras de etiología venosa. Material y método: se llevó a cabo un estudio multicéntrico, prospectivo, de medidas repetidas en un solo grupo y postautorización en pacientes con úlceras por presión y úlceras de etiología venosa sin signos clínicos de infección local, que fueron tratados durante 8 semanas. Las medidas se registraron al inicio y en las semanas 2, 4, 6 y 8. Los pacientes recibieron una cápsula oral dos veces al día, con las comidas. La medida de resultado principal fue el porcentaje de reducción en el tamaño de la herida. Además, se estudió la cicatrización completa. El tamaño de la muestra se determinó para comparar los resultados frente a un valor de referencia. Se requería un total de 127 pacientes para detectar una diferencia igual o superior al 15% en la reducción del área. Se asumió como porcentaje de reducción de referencia un 57%. Además, se estimó un 10% de pérdidas en el seguimiento. Resultados: Se incluyeron y finalizaron el estudio 112 pacientes con 133 heridas (un 16,0% tuvieron dos o más lesiones), con una media de edad de 74,2 ± 12,0 (mediana: 77, extremos: 35-94). Un 69,8% eran mujeres, la mayoría pacientes ambulatorios (98,4%). En un 9% se utilizaron moduladores de las proteasas y solo en un 27,2% se aplicó un vendaje compresivo multicapa. Un total de 58 (43,6%) úlceras cicatrizaron durante el periodo del estudio. La evolución del tamaño de la herida y su porcentaje de reducción fueron estadísticamente significativos (p ≤ 0,001), disminuyendo a lo largo del tiempo. Hubo diferencias estadísticamente significativas entre los resultados del estudio y el valor de referencia (p ≤ 0,001). Conclusiones: a pesar de las posibles limitaciones metodológicas por ser un estudio en un solo grupo, el complemento estudiado parece tener un efecto sobre la cicatrización. Los resultados son mejores que los publicados previamente con otros suplementos nutricionales o frente a la cura en ambiente húmedo por sí sola

Objective: To evaluate a specific oral nutritional supplement, Balnimax(R) (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

[Nutrition and chronic wound healing. A clinical case of a patient with a hard to heal venous leg ulcers]. / Nutrición y cicatrización en heridas crónicas. A propósito de un caso de una úlcera venosa de evolución tórpida en un anciano.

The cronicity of a wound can be produced by the alteration of several factors. One of the agents that can produce a delay in the wound healing process is malnutrition. According with the evidence, nutrition is an important factor in chronic wound prevention and treatment. The prevalence of low extremity wounds increases in population aged 65 or more. As we became older, malnutrition risk is more relevant due to physiological changes related to ageing. We describe a clinical case of a torpid venous leg ulcer in an elder patient centering on nutrition assessment and management.

Best practice in the management of venous leg ulcers.

Leg ulcers are wounds or open sores, often chronic in nature (long-lasting and non-healing), which cause damage to the skin. Appropriate management of chronic venous leg ulcers is essential to prevent further deterioration of the wound, improve patients' quality of life and reduce any healthcare costs associated with treating complications of such ulcers, including infection. However, management of leg ulcers can be challenging, particularly in patients who do not adhere to treatment regimens, cannot tolerate compression therapy, or have increased pain and infection. This article aims to identify best practice in the management of venous leg ulcers.