scholarly journals Exploiting potency of negative pressure in wound dressing using limited access dressing and suction-assisted dressing

2012 ◽  
Vol 45 (02) ◽  
pp. 302-315 ◽  
Author(s):  
Pramod Kumar
Keyword(s):  
Wound Healing ◽  
Negative Pressure ◽  
Wound Dressing ◽  
Chronic Wounds ◽  
Bacterial Invasion ◽  
Limited Access ◽  
Advantages And Disadvantages ◽  
Superficial Skin ◽  
Excellent Research ◽  
Pressure Dressing

ABSTRACTRole of negative pressure dressing and moist wound healing are well established in the treatment of both acute and chronic wounds with certain advantages and disadvantages in both the techniques. Both these techniques prevents wound colonization, but the negative pressure dressing method has proved to have a greater potency to remove secretions, prevent wound invasion and eradication established infection. In both these techniques there is no accessibility to wound environment. Limited access dressing (LAD) is a moist wound dressing with negative pressure. It provides limited access to the wound through two small ports for both dressers and pathogens. The LAD design has notable advantages like wound isolation that reduces chance of wound colonization and safe disposal of infected materials (important factor to reduce hospital-acquired infections), while avoiding some major disadvantages such as opacity of dressing materials, inaccessible offensive smelling wound environment, and relatively high treatment costs. In LAD a definite intermittent negative pressure regimen is followed. The intermittent negative pressure (cycle of 30 minutes suction and 3 1 / 2 hours rest) is effective. Overall, the LAD is a safe and effective alternative to conventional dressing methods. LAD is an excellent research tool for wound healing as frequent/continuous record of wound healing is possible without disturbing the wound healing process. LAD is an effective dressing for limb salvage in cases of acute and chronic complex wounds. Leech effect prevents wound related systematic response syndrome and sepsis. Suction-assisted dressing (SAD) is a combination of semiocclusive dressing with negative pressure. It works by removal of fluids by intermittent (like LAD) negative pressure and preventing bacterial invasion. SAD is especially advantageous where soakage is less, there is no dead tissue covering the wound (e.g., following skin grafting), superficial skin wounds (e.g., donor area) and also where LAD is technically difficult to apply over circumferential trunk and neck dressings under anesthesia.

scholarly journals Effects of limited access dressing in chronic wounds: A biochemical and histological study

2015 ◽  
Vol 48 (01) ◽  
pp. 022-028 ◽  
Author(s):  
Thittamaranahalli Muguregowda Honnegowda ◽  
Pramod Kumar ◽  
Padmanabha Udupa E G ◽  
Anurag Sharan ◽  
Rekha Singh ◽  
...  
Keyword(s):  
Wound Healing ◽  
Negative Pressure ◽  
Total Protein ◽  
Inflammatory Infiltrate ◽  
Chronic Wounds ◽  
Histological Study ◽  
Inflammatory Cells ◽  
Collagen Deposition ◽  
Pressure Therapy ◽  
Limited Access

ABSTRACT Background: Negative pressure wound therapy has emerged as an attractive treatment modality for the management and healing of chronic ulcers. Though numerous clinical studies are available, there is a lack of biochemical and histological studies evaluating the healing of chronic wounds. Materials and Methods: In the present study, a total 60 patients were divided into two groups: Limited access dressing (LAD) group (n = 30) and conventional dressing group (n = 30). Various biochemical parameters such as hydroxyproline, total protein and antioxidants such as reduced glutathione (GSH), glutathione peroxidase (GPx), catalase (CAT) and oxidative biomarker malondialdhyde (MDA) are measured in the granulation tissue. Histologically amount of inflammatory infiltrate, angiogenesis, and collagen deposition are studied to assess wound healing. Results: Patients treated with LAD have shown significant increase in the mean (±standard deviation) hydroxyproline (77.3 ± 30.1 vs. 32.3 ± 16.18; P = 0.026), total protein (13.89 ± 9.0 vs. 8.9 ± 4.59; P = 0.004), GSH (7.4 ± 1.91 vs. 5.1 ± 1.28; P = 0.039), GPx (122.3 ± 59.3 vs. 88.7 ± 34.11; P = 0.030), CAT (1.80 ± 1.14 vs. 0.9 ± 0.71; P = 0.002) and decrease in MDA (13.4 ± 5.5 vs. 8.6 ± 3.8; P = 0.004). Histological study showed comparatively fewer inflammatory cells, increased and well organised collagen bundles, and more angiogenesis in the LAD group when compared with that with conventional dressing after 10 days of treatment. Conclusion: In the present study, we have found beneficial effect of newer intermittent negative pressure therapy in combination with moist environment (LAD) on chronic wound healing by increasing collagen deposition and angiogenesis; and reducing oxidative stress and inflammatory infiltrate.

The effects and use of negative pressure wound therapy – a set of case reports

2020 ◽  
Vol 99 (4) ◽  
pp. 183-188
Keyword(s):  
Wound Healing ◽  
High Risk ◽  
Negative Pressure ◽  
Negative Pressure Wound Therapy ◽  
Chronic Wounds ◽  
Wide Spectrum ◽  
Case Reports ◽  
Modern Medicine ◽  
Wound Therapy ◽  
Basic Set

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.

scholarly journals Fabrication of Hybrid Nanofibers from Biopolymers and Poly (Vinyl Alcohol)/Poly (ε-Caprolactone) for Wound Dressing Applications

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2104
Author(s):  
Sibusiso Alven ◽  
Blessing Atim Aderibigbe
Keyword(s):  
Mechanical Properties ◽  
Wound Healing ◽  
Vinyl Alcohol ◽  
Wound Dressing ◽  
Chronic Wounds ◽  
Cellular Adhesion ◽  
Wound Dressings ◽  
Poly Vinyl Alcohol ◽  
High Porosity ◽  
Hybrid Nanofibers

The management of chronic wounds is challenging. The factors that impede wound healing include malnutrition, diseases (such as diabetes, cancer), and bacterial infection. Most of the presently utilized wound dressing materials suffer from severe limitations, including poor antibacterial and mechanical properties. Wound dressings formulated from the combination of biopolymers and synthetic polymers (i.e., poly (vinyl alcohol) or poly (ε-caprolactone) display interesting properties, including good biocompatibility, improved biodegradation, good mechanical properties and antimicrobial effects, promote tissue regeneration, etc. Formulation of these wound dressings via electrospinning technique is cost-effective, useful for uniform and continuous nanofibers with controllable pore structure, high porosity, excellent swelling capacity, good gaseous exchange, excellent cellular adhesion, and show a good capability to provide moisture and warmth environment for the accelerated wound healing process. Based on the above-mentioned outstanding properties of nanofibers and the unique properties of hybrid wound dressings prepared from poly (vinyl alcohol) and poly (ε-caprolactone), this review reports the in vitro and in vivo outcomes of the reported hybrid nanofibers.

The Application of Enhanced Recovery After Surgery and Negative-Pressure Wound Therapy in The Perioperative Period of Elderly Patients With Colorectal Cancer

2020 ◽  
Author(s):  
Hanrong Liu ◽  
Ping Yang ◽  
Song Han ◽  
Yu Zhang ◽  
Hui-ying Zhu
Keyword(s):  
Colorectal Cancer ◽  
Wound Healing ◽  
Negative Pressure ◽  
Wound Dressing ◽  
Readmission Rate ◽  
Negative Pressure Wound Therapy ◽  
Enhanced Recovery ◽  
Enhanced Recovery After Surgery ◽  
Perioperative Period ◽  
Wound Therapy

Abstract Objective: To Explore the perioperative application of enhanced recovery after surgery (ERAS) and negative-pressure wound therapy in the elderly patients with colorectal cancer. Methods: A retrospective clinical data were studied in the patients with colorectal cancer in Department of General Surgery in Shanghai Forth People,s Hospital (from March, 2017 to March, 2019), One hundred and fifty patients with undergoing radical surgery for colorectal cancer were divided into two groups: ERAS group(n=76 cases, accepting ERAS management) and Conventional treatment(CT) group(n=74 cases, accepting traditional treatment),Bleeding in operation, the time of postoperative anal flatus ,number of wound dressing changing, time of wound healing, the length of postoperative hospital stay, readmission rate, postoperative complication, were compared between the two groups. Results: ERAS was associated with less bleeding in operation, less Wound fat liquefaction, less wound dressing changing, less time of wound healing，less time of postoperative anal flatus compare to CT group（P<0.05）; anastomotic fistula、readmission rate is similar in two groups（P>0.05）. Conclusion: The modified ERAS can be safely applied to the perioperative period of elderly colorectal cancer patients and promote recovery; negative-pressure wound therapy is helpful for wound healing and promoting rehabilitation.

scholarly journals Antibacterial-Integrated Collagen Wound Dressing for Diabetes-Related Foot Ulcers: An Evidence-Based Review of Clinical Studies

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2168
Author(s):  
Ibrahim N. Amirrah ◽  
Mohd Farhanulhakim Mohd Razip Wee ◽  
Yasuhiko Tabata ◽  
Ruszymah Bt Hj Idrus ◽  
Abid Nordin ◽  
...  
Keyword(s):  
Wound Healing ◽  
Clinical Trials ◽  
Clinical Studies ◽  
Wound Dressing ◽  
Chronic Wounds ◽  
Gentian Violet ◽  
Antibacterial Properties ◽  
Small Sample ◽  
Wound Dressings ◽  
Sample Sizes

Diabetic foot ulcer (DFU) is a chronic wound frequently delayed from severe infection. Wound dressing provides an essential barrier between the ulcer and the external environment. This review aimed to analyse the effectiveness of antibacterial collagen-based dressing for DFU treatment in a clinical setting. An electronic search in four databases, namely, Scopus, PubMed, Ovid MEDLINE(R), and ISI Web of Science, was performed to obtain relevant articles published within the last ten years. The published studies were included if they reported evidence of (1) collagen-based antibacterial dressing or (2) wound healing for diabetic ulcers, and (3) were written in English. Both randomised and non-randomised clinical trials were included. The search for relevant clinical studies (n) identified eight related references discussing the effectiveness of collagen-based antibacterial wound dressings for DFU comprising collagen impregnated with polyhexamethylene biguanide (n = 2), gentamicin (n = 3), combined-cellulose and silver (n = 1), gentian violet/methylene blue mixed (n = 1), and silver (n = 1). The clinical data were limited by small sample sizes and multiple aetiologies of chronic wounds. The evidence was not robust enough for a conclusive statement, although most of the studies reported positive outcomes for the use of collagen dressings loaded with antibacterial properties for DFU wound healing. This study emphasises the importance of having standardised clinical trials, larger sample sizes, and accurate reporting for reliable statistical evidence confirming DFU treatment efficiency.

scholarly journals Current Trends in Advanced Alginate-Based Wound Dressings for Chronic Wounds

2021 ◽  
Vol 11 (9) ◽  
pp. 890
Author(s):  
Andreea Barbu ◽  
Bogdan Neamtu ◽  
Marius Zăhan ◽  
Gabriela Mariana Iancu ◽  
Ciprian Bacila ◽  
...  
Keyword(s):  
Wound Healing ◽  
Chronic Inflammation ◽  
Wound Dressing ◽  
Chronic Wounds ◽  
Healing Process ◽  
Wound Dressings ◽  
In Vivo Studies ◽  
Public Health Issue ◽  
Wound Healing Process ◽  
Special Importance

Chronic wounds represent a major public health issue, with an extremely high cost worldwide. In healthy individuals, the wound healing process takes place in different stages: inflammation, cell proliferation (fibroblasts and keratinocytes of the dermis), and finally remodeling of the extracellular matrix (equilibrium between metalloproteinases and their inhibitors). In chronic wounds, the chronic inflammation favors exudate persistence and bacterial film has a special importance in the dynamics of chronic inflammation in wounds that do not heal. Recent advances in biopolymer-based materials for wound healing highlight the performance of specific alginate forms. An ideal wound dressing should be adherent to the wound surface and not to the wound bed, it should also be non-antigenic, biocompatible, semi-permeable, biodegradable, elastic but resistant, and cost-effective. It has to give protection against bacterial, infectious, mechanical, and thermal agents, to modulate the level of wound moisture, and to entrap and deliver drugs or other molecules This paper explores the roles of alginates in advanced wound-dressing forms with a particular emphasis on hydrogels, nanofibers networks, 3D-scaffolds or sponges entrapping fibroblasts, keratinocytes, or drugs to be released on the wound-bed. The latest research reports are presented and supported with in vitro and in vivo studies from the current literature.

scholarly journals The application of enhanced recovery after surgery and negative-pressure wound therapy in the perioperative period of elderly patients with colorectal cancer

BMC Surgery ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Han-rong Liu ◽  
Ping Yang ◽  
Song Han ◽  
Yu Zhang ◽  
Hui-yin Zhu
Keyword(s):  
Colorectal Cancer ◽  
Wound Healing ◽  
Negative Pressure ◽  
Wound Dressing ◽  
Readmission Rate ◽  
Negative Pressure Wound Therapy ◽  
Enhanced Recovery ◽  
Enhanced Recovery After Surgery ◽  
Perioperative Period ◽  
Wound Therapy

Abstract Objective To Explore the perioperative application of enhanced recovery after surgery (ERAS) and negative-pressure wound therapy in the elderly patients with colorectal cancer. Methods A retrospective clinical data were studied in the patients with colorectal cancer in Department of General Surgery in Shanghai Fourth People,s Hospital (from March, 2017 to March, 2019), One hundred and fifty patients with undergoing radical surgery for colorectal cancer were divided into two groups: ERAS group (n = 76 cases, accepting ERAS management) and Conventional treatment(CT) group (n = 74 cases, accepting traditional treatment), Bleeding in operation, the time of postoperative anal flatus, number of wound dressing changing, time of wound healing, the length of postoperative hospital stay, readmission rate, postoperative complication, were compared between the two groups. Results ERAS was associated with less bleeding in operation, less Wound fat liquefaction, less wound dressing changing, less time of wound healing, less time of postoperative anal flatus compare to CT group (P < 0.05); anastomotic fistula, readmission rate is similar in two groups (P > 0.05). Conclusion The modified ERAS can be safely applied to the perioperative period of elderly colorectal cancer patients and promote recovery; negative-pressure wound therapy is helpful for wound healing and promoting rehabilitation.

scholarly journals Healing Effect of Vicenin-2 (VCN-2) on Human Dermal Fibroblast (HDF) and Development VCN-2 Hydrocolloid Film Based on Alginate as Potential Wound Dressing

2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Woan Sean Tan ◽  
Palanisamy Arulselvan ◽  
Shiow-Fern Ng ◽  
Che Norma Mat Taib ◽  
Murni Nazira Sarian ◽  
...  
Keyword(s):  
Wound Healing ◽  
Drug Release ◽  
Wound Dressing ◽  
Wound Repair ◽  
Chronic Wounds ◽  
Dermal Fibroblast ◽  
Wound Dressings ◽  
Dependent Manner ◽  
Synthetic Compound ◽  
Study Results

Chronic wounds represent serious globally health care and economic issues especially for patients with hyperglycemic condition. Wound dressings have a predominant function in wound treatment; however, the dressings for the long-lasting and non-healing wounds are still a significant challenge in the wound care management market. Astonishingly, advanced wound dressing which is embedded with a synthetic drug compound in a natural polymer compound that acts as drug release carrier has brought about promising treatment effect toward injured wound. In the current study, results have shown that Vicenin-2 (VCN-2) compound in low concentration significantly enhanced cell proliferation and migration of HDF. It also regulated the production of pro-inflammatory cytokines such as IL-6, IL-1β, and TNF-α from HDF in wound repair. Treatment of VCN-2 also has facilitated the expression of TGF-1β and VEGF wound healing maker in a dose-dependent manner. A hydrocolloid film based on sodium alginate (SA) incorporated with VCN-2 synthetic compound which targets to promote wound healing particularly in diabetic condition was successfully developed and optimized for its physico-chemical properties. It was discovered that all the fabricated film formulations prepared were smooth, translucent, and good with flexibility. The thickness and weight of the formulations were also found to be uniform. The hydrophilic polymer comprised of VCN-2 were shown to possess desirable wound dressing properties and superior mechanical characteristics. The drug release profiles have revealed hydrocolloid film, which is able to control and sustain the VCN-2 released to wound area. In short, hydrocolloid films consisting of VCN-2 formulations are suitably used as a potential wound dressing to promote restoration of wound injury.

A collagen-AS/εPLL bilayered artificial substitute regulate anti-inflammation and infection for initial inflamed wound healing

2021 ◽  
Author(s):  
Gyeung Mi Seon ◽  
Mi Hee Lee ◽  
Min-Ah Koo ◽  
Seung Hee Hong ◽  
Ye Jin Park ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Wound Healing ◽  
Wound Dressing ◽  
Chronic Wounds ◽  
Burn Injuries ◽  
Significant Problem ◽  
Microbial Diseases ◽  
Anti Inflammation

Despite the development of advanced tissue engineering substitute, inflammation is still a significant problem that can arise from inflamed burn injuries, chronic wounds, or microbial diseases. Although topical wound dressing...

Sign in / Sign up

Export Citation Format

Share Document