Clinical laboratory · 2021
The Effect of Bacterial Colonization and Maggot Debridement Treatment on Wound Healing in Chronic Venous Leg Ulcers.
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Sirekbasan Serhat, Polat Erdal, Cangel Ugur
Аннотация
BACKGROUND: The debridement of necrotic and infected tissues, which prolong the wound healing process, is important for the preparation of the wound bed. Therefore, wound-bed preparation and debridement are vital components of venous leg ulcer management. We aimed to present a perspective to evaluate the clinical and microbiological efficacy of Maggot Debridement Therapy (MDT) in the treatment of chronic leg ulcers caused by venous insufficiency.
METHODS: Thirty-eight patients with chronic venous leg ulcers who were referred to our unit with an MDT request were included in the study. Lucilia sericata larvae were applied to the wounds two days a week until the necrotic tissue was cleared. Swab samples were regularly taken before and immediately after each larval application for wound culture. Changes in the percentage of wound surface area and growing pathogenic microorganisms were recorded during the follow-up period.
RESULTS: The sample consisted of 38 patients with 55 venous leg ulcers. The mean initial ulcer surface area was 99.1 cm2 (range 3 - 500). Complete debridement was achieved in all ulcers in the 2nd week, on average. Twenty-five ulcers (45.5%) were completely debrided with two one-week MDT sessions. Complete wound healing occurred in 42 ulcers (76.4%) after an average of seven MDT sessions. Microorganisms isolated from the wounds significantly decreased immediately after the first MDT session.
CONCLUSIONS: Although many methods are used in the treatment of venous leg ulcers, they are often not effective. MDT, which is coming into widespread use today, is a simple and effective method in the treatment of these ulcers. Its effects such as biodebridement, disinfection, and growth stimulation can encourage the rapid healing of chronic venous leg ulcers.
METHODS: Thirty-eight patients with chronic venous leg ulcers who were referred to our unit with an MDT request were included in the study. Lucilia sericata larvae were applied to the wounds two days a week until the necrotic tissue was cleared. Swab samples were regularly taken before and immediately after each larval application for wound culture. Changes in the percentage of wound surface area and growing pathogenic microorganisms were recorded during the follow-up period.
RESULTS: The sample consisted of 38 patients with 55 venous leg ulcers. The mean initial ulcer surface area was 99.1 cm2 (range 3 - 500). Complete debridement was achieved in all ulcers in the 2nd week, on average. Twenty-five ulcers (45.5%) were completely debrided with two one-week MDT sessions. Complete wound healing occurred in 42 ulcers (76.4%) after an average of seven MDT sessions. Microorganisms isolated from the wounds significantly decreased immediately after the first MDT session.
CONCLUSIONS: Although many methods are used in the treatment of venous leg ulcers, they are often not effective. MDT, which is coming into widespread use today, is a simple and effective method in the treatment of these ulcers. Its effects such as biodebridement, disinfection, and growth stimulation can encourage the rapid healing of chronic venous leg ulcers.