Bacterial colonisation in wounds delays healing, mandating regular bacterial removal through cleaning and debridement. Real‐time monitoring of the efficacy of mechanical debridement has recently become possible through fluorescence imaging. Red fluorescence, endogenously produced during bacterial metabolism, indicates regions contaminated with live bacteria (>104 CFU/g). In this prospective study, conventional and fluorescence photos were taken of 25 venous leg ulcers before and after mechanical debridement, without use of antiseptics. Images were digitally segmented into wound bed and the periwound regions (up to 1.5 cm outside bed) and pixel intensity of red fluorescence evaluated to compute bacterial area. Pre‐debridement, bacterial fluorescence comprised 10.4% of wound beds and larger percentages of the periwound area (~25%). Average bacterial reduction observed in the wound bed after a single mechanical debridement was 99.4% (p<0.001), yet periwound bacterial reduction was only 64.3%. On average, across bed and periwound, a single mechanical debridement left behind 29% of bacterial fluorescence positive tissue regions. Our results show the substantial effect that safe, inexpensive, mechanical debridement can have on bacterial load of venous ulcers without antiseptic use. Fluorescence imaging can localise bacterial colonised areas and showed persistent periwound bacteria post‐debridement. Fluorescence‐targeted debridement can be used quickly and easily in daily practice.
Background: Cold atmospheric plasma (CAP) has been used successfully for wound treatment, with thrice weekly treatment intervals. In this study, we wished to investigate whether comparably beneficial results can be achieved even with once weekly CAP treatment. Patients and methods: In this randomized clinical pilot study (RCT) patients with therapy-refractory chronic wounds were examined over a maximum of twelve weeks. Groups 1 and 2 were treated with CAP once and twice a week, respectively. Patients in Group 3 received placebo therapy once a week. Results: Wound area decreased significantly by 63.0 % in Group 1 (n = 14, P = 0.005) and by 46.8 % in Group 2 (n = 13, P = 0.007). In Group 3 (n = 10) the wounds grew on average 17.5 % larger. A significant reduction in pain was measured in both CAP-treated groups (Group 1: P = 0.042; Group 2: P = 0.027). Only in Group 2 was there a significant improvement in wound-specific quality of life (P = 0.005). After the 12-week CAP treatment, the reduction in bacterial load compared to the day of study inclusion averaged 50.4 % for Group 1 and 35.0 % for Group 2. Conclusions: Our RCT shows that treatment with CAP improves various aspects of wound healing in patients with therapy-refractory chronic wounds. The results obtained for once weekly treatment with CAP were not inferior to those obtained when CAP treatment was three times a week. Treatment once a week is also easier and more economical to implement in clinical routine.
Zusammenfassung Hintergrund Patienten mit Ulcus cruris haben häufig ausgeprägte Ödeme der unteren Extremitäten, die im Rahmen einer erfolgreichen Wundversorgung behandelt werden müssen. Die hierfür notwendigen Kompressionstherapien werden heute in Deutschland oft mit sehr fehler- und zeitaufwendigen Verbänden mit Kurzzugbinden durchgeführt. Mehrkomponentensysteme, adaptive Kompressionsbandagen und Ulkus-Strumpfsysteme sind neuere, deutlich weniger fehleranfällige Therapieoptionen. Neben dem oft nicht vorhandenen Wissen werden auch die scheinbar hohen Kosten als Grund für die nicht vorgenommene Verordnung dieser Materialien angeführt. Es war daher das Ziel unserer Untersuchung, die Kosten der verschiedenen Therapieoptionen im ambulanten und stationären Sektor differenziert darzustellen. Methoden Für die ökonomischen Berechnungen wurden sowohl die Material- als auch die Personalkosten für verschiedene Szenarien berücksichtigt. Ergebnisse Es zeigte sich, dass durch die kontinuierliche Kompressionstherapie im stationären Bereich Kosten von 5,29 Euro bis 18,50 Euro pro Tag anfallen. Für die ambulante Versorgung wurden Kosten von 2,29 Euro bis 34,29 Euro pro Tag ermittelt. Die verschiedenen Konstellationen der Kompressionstherapie SGkönnen somit nicht nur medizinisch, sondern auch wirtschaftlich unterschiedlich sinnvoll sein. Folgerung Als Konsequenz dieser Daten sollten sowohl die verschiedenen Materialien als auch die ökonomischen Aspekte der Kompressionstherapie bei Patienten mit Ulcus cruris den Therapeuten bekannt sein. Diese Therapieoptionen sollten dann unter Einbeziehung individueller Faktoren und orientiert an den Bedürfnissen und Fähigkeiten der Patienten verordnet und durchgeführt werden.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.