Biofilms in Chronic Wounds and the Potential Role of Negative Pressure Wound Therapy

2013 ◽  
Vol 40 (2) ◽  
pp. 143-149 ◽  
Author(s):  
Beth Hawkins Bradley ◽  
Muriel Cunningham
2018 ◽  
Vol 17 (3) ◽  
pp. 144-150 ◽  
Author(s):  
Yu Liu ◽  
Ningning Tang ◽  
Ke Cao ◽  
Shaohua Wang ◽  
Sijie Tang ◽  
...  

Negative-pressure wound therapy (NPWT) is one of the most advanced therapeutic methods in the treatment of various hard-to-heal acute and refractory chronic wounds. Recent emerging evidence points to a role of the microRNA-mediated regulation of angiogenesis in ischemic tissues, and a series of microRNAs associated with angiogenesis have been successively identified. In this study, we found that miR-195 expression was significantly upregulated and the microvessel density (MVD) was increased in granulation tissue collected 7 days after NPWT compared with those in the pre-NPWT tissue. Moreover, the expression of NLRX1, the potential target gene of miR-195, was down-regulated in post-NPWT compared with that in pre-NPWT tissue. Significant negative correlations were detected between miR-195 and NLRX1 expression levels ( r = −.856, P < .001) and between NLRX1 expression and MVD ( r = −.618, P < .05), whereas miR-195 expression was positively correlated with MVD in the granulation tissue ( r = .630, P < .05). In summary, NPWT may suppress NLRX1 expression through the upregulation of miR-195 expression, thus efficaciously promoting angiogenesis in the granulation tissue to enhance wound healing.


WCET Journal ◽  
2019 ◽  
Vol 39 (2) ◽  
pp. 9-18
Author(s):  
Wai Sze Ho ◽  
Wai Kuen Lee ◽  
Ka Kay Chan ◽  
Choi Ching Fong

Objectives The aim of this study was to retrospectively review the effectiveness of negative pressure wound therapy (NPWT) in sternal wound healing with the use of the validated Bates-Jensen Wound Assessment Tool (BWAT), and explore the role of NPWT over sternal wounds and future treatment pathways. Methods Data was gathered from patients' medical records and the institution's database clinical management system. Seventeen subjects, who had undergone cardiothoracic surgeries and subsequently consulted the wound care team in one year were reviewed. Fourteen of them were included in the analysis. Healing improvement of each sternal wound under continuous NPWT and continuous conventional dressings was studied. In total, 23 continuous NPWT and 13 conventional dressing episodes were analysed with the BWAT. Results Among conventional dressing episodes, sternal wound improvement was 2.5–3% over 10 days to 3.5 weeks, whereas 4–5% sternal healing was achieved in 5 days to 2 weeks with sternal wire presence. Better healing at 11% in 1 week by conventional dressing was attained after sternal wire removal. In NPWT episodes, 8–29%, 13–24%, and 15–46% of healing was observed in 2 weeks, 3.5 to 5 weeks and 6 to 7 weeks, respectively. Only 39% wound healing was acquired at the 13th week of NPWT in one subject. With sternal wire present, 6%–29% wound healing progress was achieved by NPWT in 1–4 weeks, and 16–23% wound improvement in 2 to 4.5 weeks by NWPT after further surgical debridement. After sternal wire removal, 6–34% sternal wound healing occurred by continuous NPWT for 1–2 weeks, and maximum healing at 46% after 2.5 weeks of NPWT were observed. Conclusions Better wound healing was achieved in the NPWT group in comparison to conventional dressings alone. However, suboptimal sternal wound healing by NPWT alone was observed. Removal of sternal wire may improve the effectiveness of NPWT. Successful tertiary closure after NPWT among subjects supports the important bridging role of NPWT in sternal wound healing. Factors causing stagnant sternal wound healing by NPWT alone are discussed.


2020 ◽  
Vol 99 (4) ◽  
pp. 183-188

Modern medicine offers a wide spectrum of wound healing resources for acute or chronic wounds. Negative pressure wound therapy (NPWT) is a very effective method, allowing complicated defects and wounds to heal. The basic set is usually provided with various special accessories to facilitate the use and support safe application of NPWT to high-risk tissue. Selected case reports are presented herein to document the special use and combinations of materials in negative pressure wound therapy.


Leczenie Ran ◽  
2015 ◽  
Vol 11 (4) ◽  
pp. 171-178
Author(s):  
Beata Mrozikiewicz-Rakowska ◽  
Joanna Kania ◽  
Ewelina Bucior ◽  
Adriana Nowak ◽  
Tomasz Grzela ◽  
...  

2013 ◽  
Vol 21 (5) ◽  
pp. 677-681 ◽  
Author(s):  
Erlangga Yusuf ◽  
Xavier Jordan ◽  
Martin Clauss ◽  
Olivier Borens ◽  
Mark Mäder ◽  
...  

2016 ◽  
Vol 74 (2) ◽  
pp. 401-405 ◽  
Author(s):  
Da-ming Zhang ◽  
Zhao-hui Yang ◽  
Pei-lin Zhuang ◽  
You-yuan Wang ◽  
Wei-liang Chen ◽  
...  

2020 ◽  
Vol 36 (1) ◽  
pp. 19-26
Author(s):  
Jeremy Meyer ◽  
Elin Roos ◽  
Ziad Abbassi ◽  
Christian Toso ◽  
Frédéric Ris ◽  
...  

Abstract Background Closed perineal wounds often fail to heal by primary intention after abdomino-perineal resection (APR) and are often complicated by surgical site infection (SSI) and/or wound dehiscence. Recent evidence showed encouraging results of prophylactic negative-pressure wound therapy (pNPWT) for prevention of wound-related complications in surgery. Our objective was to gather and discuss the early existing literature regarding the use of pNPWT to prevent wound-related complications on perineal wounds after APR. Methods Medline, Embase, and Web of Science were searched for original publications and congress abstracts reporting the use of pNPWT after APR on closed perineal wounds. Results Seven publications were included for analysis. Two publications reported significantly lower incidence of SSI in pNPWT patients than in controls with a risk reduction of about 25–30%. Two other publications described similar incidences of SSI between the two groups of patients but described SSI in pNPWT patients to be less severe. One study reported significantly lower incidence of wound dehiscence in pNPWT patients than in controls. Conclusion The largest non-randomized studies investigating the effect of pNPWT on the prevention of wound-related complications after APR showed encouraging results in terms of reduction of SSI and wound dehiscence that deserve further investigation and confirmation.


2013 ◽  
Vol 12 (4) ◽  
pp. 436-442 ◽  
Author(s):  
Vijay Langer ◽  
Prem S Bhandari ◽  
Satyamoorthy Rajagopalan ◽  
Mrinal K Mukherjee

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