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https://www.readbyqxmd.com/read/29342089/chitosan-gel-to-treat-pressure-ulcers-a-clinical-pilot-study
#1
Virginia Campani, Eliana Pagnozzi, Ilaria Mataro, Laura Mayol, Alessandra Perna, Floriana D'Urso, Antonietta Carillo, Maria Cammarota, Maria Chiara Maiuri, Giuseppe De Rosa
Chitosan is biopolymer with promising properties in wound healing. Chronic wounds represent a significant burden to both the patient and the medical system. Among chronic wounds, pressure ulcers are one of the most common types of complex wound. The efficacy and the tolerability of chitosan gel formulation, prepared into the hospital pharmacy, in the treatment of pressure ulcers of moderate severity were evaluated. The endpoint of this phase II study was the reduction of the area of the lesion by at least 20% after four weeks of treatment...
January 17, 2018: Pharmaceutics
https://www.readbyqxmd.com/read/29339283/hydroxyethyl-cellulose-hydrogel-for-wound-dressing-fabrication-characterization-and-in-vitro-evaluation
#2
Gomaa F El Fawal, Marwa M Abu-Serie, Mohamed A Hassan, Mohamed S Elnouby
In this study, new hydrogel membranes were developed based on hydroxyethyl cellulose (HEC) supplemented with tungsten oxide for further implementing in wound treatment. HEC hydrogel membranes were fabricated and crosslinked using citric acid (CA). Various tests were carried out including FTIR, XRD, porosity measurements, swelling, mechanical properties, gel fraction, and thermal gravimetric analysis to evaluate the efficiency of the prepared membranes as wound dressing material. In addition, wound healing activity of the examined membranes for human dermal fibroblast cell line was investigated employing in vitro scratching model...
January 12, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29337327/modulating-inflammation-in-a-cutaneous-chronic-wound-model-by-il-10-released-from-collagen-silica-nanocomposites-via-gene-delivery
#3
Xiaolin Wang, Thibaud Coradin, Christophe Hélary
Cutaneous chronic wounds remain a major clinical challenge which requires the development of novel wound dressings. Previously, we showed that collagen-silica nanocomposites consisting of polyethyleneimine (PEI)-DNA complexes associated with silica nanoparticles (SiNP), collagen hydrogel and 3T3 fibroblasts, can work as a local "cell factory". Indeed, the "in-gel" transfection leads to a sustained production and release of biomolecules. Herein, we further explored the possibility for nanocomposites to deliver interleukin-10 (IL-10), a potent anti-inflammatory cytokine, which favors tissue repair...
January 16, 2018: Biomaterials Science
https://www.readbyqxmd.com/read/29334612/tempo-oxidized-bacterial-cellulose-pellicle-with-silver-nanoparticles-for-wound-dressing
#4
Chun-Nan Wu, Shih-Chang Fuh, Shin-Ping Lin, Yen-Yi Lin, Hung-Yueh Chen, Jui-Ming Liu, Kuan-Chen Cheng
Biocompatible bacterial cellulose pellicle (BCP) is a candidate for biomedical material such as wound dressing. However, due to lack of antibacterial activity, to grant BCP with the property is crucial for its biomedical application. In the present study, BCP was modified by 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO)-mediated oxidation using TEMPO/NaClO/NaBr system at pH 10 to form TEMPO-oxidized BCP (TOBCP) with anionic C6 carboxylate groups. The TOBCP was subsequently ion-exchanged in AgNO3 solution and silver nanoparticles (AgNP) with diameter of ~16...
January 15, 2018: Biomacromolecules
https://www.readbyqxmd.com/read/29333932/a-comparison-between-dacc-with-chlorhexidine-acetate-soaked-paraffin-gauze-and-foam-dressing-for-skin-graft-donor-sites
#5
Jun Won Lee, Seong Hoon Park, In Suck Suh, Hii Sun Jeong
OBJECTIVE: Retrograde infections often occur with excessive or incomplete drainage of exudate, or as a result of adherence of dressings to wounds. Dialkylcarbamoyl chloride (DACC) irreversibly binds to bacterial surfaces and physically removes bacteria when dressings are changed. Chlorhexidine acetate-soaked paraffin gauze provides a moist wound-healing environment. We hypothesise that when DACC is combined with chlorhexidine acetate-soaked paraffin gauze, wound healing times decrease...
January 2, 2018: Journal of Wound Care
https://www.readbyqxmd.com/read/29333931/hyperspectral-imaging-of-tissue-perfusion-and-oxygenation-in-wounds-assessing-the-impact-of-a-micro-capillary-dressing
#6
Thomas Wild, Markus Becker, Jochen Winter, Nicole Schuhschenk, Georg Daeschlein, Frank Siemers
OBJECTIVE: Experimental tests of non-invasive multi- or hyperspectral imaging (HSI) systems reveal the high potential of support for medical diagnostic purposes and scientific biomedical analysis. Until now the use of HSI technologies for medical applications was limited by complex and overly sophisticated systems. We present a new and compact HSI-camera that could be used in normal clinical practice. METHOD: We assessed the use of the HSI system on the hands of 10 healthy volunteers, looking at control parameters, and those following venous occlusion, arterial occlusion and reperfusion, including tissue oxygenation, tissue haemoglobin index, perfusion in 4-6mm depth=near infrared spectroscopy (NIR), and tissue water index...
January 2, 2018: Journal of Wound Care
https://www.readbyqxmd.com/read/29333930/a-histological-analysis-of-artificial-skin-in-an-extensively-burned-child-14-years-after-application-a-case-report
#7
Robert Zajicek, Eva Sticova, Radana Königova
INTRODUCTION: Artificial skin has become the treatment of choice in extensive, full-thickness thermal injuries. The longest follow-up of the healing process in burn sites covered with the Integra Bilayer Matrix Wound Dressing onto the wound published to date was at around five years after application. In our case report, we describe the clinical and histological analysis of an extensive, full-thickness thermal injury 14 years on from treatment with the bilayer matrix wound dressing. CASE STUDY: A nine-year-old boy suffered a full-thickness skin loss over 85% of his body surface area following a fire accident...
January 2, 2018: Journal of Wound Care
https://www.readbyqxmd.com/read/29333929/efficacy-of-an-imaging-device-at-identifying-the-presence-of-bacteria-in-wounds-at-a-plastic-surgery-outpatients-clinic
#8
Ellen L Blackshaw, Steven L A Jeffery
OBJECTIVE: Current standard diagnostic practice of bacterial infections by visual inspection under white light is subjective, and microbiological sampling is suboptimal due to high false negative rates and the lengthy time needed for culture results to arrive. The MolecuLight i:X Imaging Device attempts to combat the issues faced in standard practice by providing a non-contact, real-time method of visualising bacteria within wounds. Our aim was to test this imaging device in a series of patients...
January 2, 2018: Journal of Wound Care
https://www.readbyqxmd.com/read/29333419/evaluation-of-a-polyurethane-foam-dressing-impregnated-with-3-povidone-iodine-betafoam-in-a-rat-wound-model
#9
Jin Won Lee, Kyo Young Song
Purpose: The purpose of this study was to evaluate the efficacy of Betafoam in terms of wound healing and safety. Methods: Fifty-four male adult Sprague-Dawley rats (weight, 200-250 g) were used in the study. Full-thickness skin defects were created on the back of each rats. The rats were assigned to 6 groups according to the type of wound dressing used (n = 9 for each group): Betafoam, Allevyn-Ag, Mepilex-Ag, Medifoam silver, Polymem-Ag, and gauze. The wound size, histological findings, and amount of DNA on the changed dressings for each group were analyzed and compared...
January 2018: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/29331783/comparative-study-of-novel-in-situ-decorated-porous-chitosan-selenium-scaffolds-and-porous-chitosan-silver-scaffolds-towards-antimicrobial-wound-dressing-application
#10
Dhee P Biswas, Neil M O'Brien-Simpson, Eric C Reynolds, Andrea J O'Connor, Phong A Tran
Dermal defects caused by trauma or disease are challenging to treat due to difficult-to-treat infections that impair wound healing. Due to the widespread emergence of drug-resistant bacteria and dwindling discoveries of new antibiotics, there is currently an urgent need to introduce novel antimicrobials effective against antibiotic-resistant bacteria without causing damage to host tissues. As selenium (Se) and silver (Ag) are known for their antimicrobial properties, we investigated the separate loading of these materials into porous chitosan/PVA (CS) scaffolds through a simple in situ deposition method to create two distinct wound dressing materials (CS-Se and CS-Ag)...
January 5, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29330848/cultured-allogeneic-fibroblast-injection-versus-fibroblasts-cultured-on-amniotic-membrane-scaffold-for-dystrophic-epidermolysis-bullosa-treatment
#11
H Moravvej, F Abdollahimajd, M-H Naseh, Z Piravar, E Abolhasani, N Mozafari, H Niknejad
BACKGROUND: Different methods of fibroblast application have been examined to treat recessive dystrophic epidermolysis bullosa (RDEB). OBJECTIVE: To compare the effects of intradermal injection of cultured allogeneic fibroblasts in healing RDEB wounds with that of fibroblasts seeded on amniotic membrane scaffolds (FAMS) or standard wound care (SWC) with Vaseline gauze as controls. MATERIALS &METHODS: Seven patients were recruited, and seven wounds were assessed in each patient: three wounds were treated with injection of intradermal fibroblasts, three were treated with FAMS, and one was dressed with SWC...
January 12, 2018: British Journal of Dermatology
https://www.readbyqxmd.com/read/29327559/-combined-surgical-approaches-in-the-treatment-of-complex-tibial-plateau-fractures
#12
Guang-Hua Yuan, Xiao Zheng, Kang Chen
OBJECTIVE: To explore the early clinical efficacy of a posteromedial inverted "L" shape approach combined an assisted antero lateral assisted approach for the treatment of complex fractures of tibial plateau. METHODS: From March 2011 to June 2014, the posteromedial inverted "L" shape approach combined with the antero lateral assisted approach in the treatment of Schatzker type IV, V, VI tibial plateau fracture were performed in 34 cases. There were 23 males and 11 females, ranging in age from18 to 67 years old, averaged 34...
January 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29324432/an-overview-of-clinical-and-health-economic-evidence-regarding-porcine-small-intestine-submucosa-extracellular-matrix-in-the-management-of-chronic-wounds-and-burns
#13
Leo M Nherera, Marco Romanelli, Paul Trueman, Valentina Dini
Small intestine submucosa (SIS) has been extensively evaluated in preclinical models and developed into commercially produced medical technologies intended for use in several different indications. The SIS extracellular matrix cellular and/or tissue-based product is a commercially available, porcine-derived SIS dressing. The purpose of this review was to consider the role of the SIS dressing in the management of chronic wounds and burns. Using a variety of search terms from the literature to describe the SIS dressing, the following databases were searched: PubMed, York Centre for Reviews and Dissemination database, National Health Service Economic Evaluation database, Health Technology Assessment database, and the Cochrane Library...
December 2017: Ostomy/wound Management
https://www.readbyqxmd.com/read/29324427/lemons-in-the-arizona-sunshine-the-effects-of-furocoumarins-leading-to-phytophotodermatitis-and-burn-like-injuries
#14
Marc R Matthews, Joel C VanderVelde, Daniel M Caruso, Kevin N Foster
INTRODUCTION: Phytophototoxic dermatitis is a strong phototoxic reaction to ultraviolet A (UV-A) radiation exposure after cutaneous contact with citrus fruit containing furocoumarins, leading to skin injury. At the Arizona Burn Center (Phoenix, AZ), the majority of these injuries are managed in the outpatient setting. CASE REPORT: The authors present a pediatric admission for burn-like injuries following prolonged cutaneous exposure to lemons while playing in the Arizona sunshine...
December 2017: Wounds: a Compendium of Clinical Research and Practice
https://www.readbyqxmd.com/read/29321048/danish-first-aid-books-compliance-with-the-new-evidence-based-non-resuscitative-first-aid-guidelines
#15
Theo Walther Jensen, Thea Palsgaard Møller, Søren Viereck, Jens Roland, Thomas Egesborg Pedersen, Freddy K Lippert
BACKGROUND: The European Resuscitation Council (ERC) released new guidelines on resuscitation in 2015. For the first time, the guidelines included a separate chapter on first aid for laypersons. We analysed the current major Danish national first aid books to identify potential inconsistencies between the current books and the new evidence-based first aid guidelines. METHODS: We identified first aid books from all the first aid courses offered by major Danish suppliers...
January 10, 2018: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/29321021/silver-pig-skin-nanocomposites-and-mesenchymal-stem-cells-suitable-antibiofilm-cellular-dressings-for-wound-healing
#16
Mario Alberto Pérez-Díaz, Phaedra Silva-Bermudez, Binisa Jiménez-López, Valentín Martínez-López, Yaaziel Melgarejo-Ramírez, Ana Brena-Molina, Clemente Ibarra, Isabel Baeza, M Esther Martínez-Pardo, M Lourdes Reyes-Frías, Erik Márquez-Gutiérrez, Cristina Velasquillo, Gabriel Martínez-Castañon, Fidel Martinez-Gutierrez, Roberto Sánchez-Sánchez
BACKGROUND: Treatment of severe or chronic skin wounds is an important challenge facing medicine and a significant health care burden. Proper wound healing is often affected by bacterial infection; where biofilm formation is one of the main risks and particularly problematic because it confers protection to microorganisms against antibiotics. One avenue to prevent bacterial colonization of wounds is the use of silver nanoparticles (AgNPs); which have proved to be effective against non-multidrug-resistant and multidrug-resistant bacteria...
January 10, 2018: Journal of Nanobiotechnology
https://www.readbyqxmd.com/read/29319738/the-use-of-nanoparticles-in-wound-treatment-a-systematic-review
#17
Maria Michelle Pereira Silva, Maria Isis Freire de Aguiar, Andrea Bezerra Rodrigues, Maira Di Ciero Miranda, Michell Ângelo Marques Araújo, Isaura Letícia Tavares Palmeira Rolim, Angela Maria Alves E Souza
OBJECTIVE: To analyze the effects of nanoparticle-based dressings on the wound healing process in in vitro animals and human cells based on scientific evidence. METHOD: A systematic review of the literature in LILACS, PubMed and Science Direct databases. The articles were selected and evaluated for the level of evidence by the application of STROBE. RESULTS: The sample consisted of 12 articles. The application of the products occurred in surgical wounds, burns, infected wounds and gingival ulcers in laboratory animals, as well as in vitro tests, demonstrating that among other advantages, the nanoparticle-based dressings increased the healing speed, had good antibacterial capacity and were non cytotoxic agents...
January 8, 2018: Revista da Escola de Enfermagem da U S P
https://www.readbyqxmd.com/read/29319719/a-new-low-cost-negative-pressure-wound-therapy-versus-a-commercially-available-therapy-device-widely-used-to-treat-complex-traumatic-injuries-a-prospective-randomized-non-inferiority-trial
#18
Fabio Kamamoto, Ana Lucia Munhoz Lima, Marcelo Rosa de Rezende, Rames Mattar-Junior, Marcos de Camargo Leonhardt, Kodi Edson Kojima, Carla Chineze Dos Santos
OBJECTIVES: Negative-pressure wound therapy has been widely adopted to reduce the complexity of treating a broad range of acute and chronic wounds. However, its cost is high. The objective of this study was to evaluate the following two different methods of negative-pressure wound therapy in terms of healing time: a low-cost method of negative-pressure wound therapy (a pressure stabilizer device connected to a hospital wall-vacuum system with a gauze-sealed dressing, USP) and the standard of care (vacuum-assisted closure, VAC)...
December 2017: Clinics
https://www.readbyqxmd.com/read/29319571/topical-antimicrobials-in-burn-care-part-1-topical-antiseptics
#19
Janos Cambiaso-Daniel, Stafanos Boukovalas, Genevieve H Bitz, Ludwik K Branski, David N Herndon, Derek M Culnan
Burn wounds disrupt the body's primary defense against invasion and colonization by microorganisms. Topical antimicrobials are one component in burn wound care. These agents suppress microbial growth to advantage skin cells and wound healing. Topical antimicrobials can be divided into 2 superclasses: antiseptics and antibiotics. We review the 4 main classes of topical antiseptics (emulsifiers, acids, oxidizers, and heavy metals) and antiseptic-impregnated dressings in current clinical use and address the mechanisms, as well as the advantages and disadvantages of each antiseptic for burn wound management...
January 9, 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29319449/management-and-closure-of-multiple-large-cutaneous-lesions-in-a-juvenile-cat-with-severe-acquired-skin-fragility-syndrome-secondary-to-iatrogenic-hyperadrenocorticism
#20
C Noël McKnight, Linda J Lew, David A Gamble
CASE DESCRIPTION A 13-month-old castrated male cat was evaluated for a large, spontaneously developed cutaneous laceration over the left scapular region. The cat had a history of severe gingivostomatitis, conjunctivitis, giardiasis, and feline herpesvirus infection and had received systemic glucocorticoid treatment for 7 weeks prior to evaluation. CLINICAL FINDINGS Physical examination revealed a 10 × 7-cm full-thickness cutaneous laceration over the left scapular region, extremely thin skin, crusts over the dorsal aspect of the neck and base of the skull, medially curling pinnae, and moderate gingivostomatitis...
January 15, 2018: Journal of the American Veterinary Medical Association
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