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Chronic wound healing

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https://www.readbyqxmd.com/read/27922792/wound-bed-preparation-a-novel-approach-using-hydrotherapy
#1
Leanne Atkin, Karen Ousey
Wounds that fail to heal quickly are often encountered by community nursing staff. An important step in assisting these chronic or stalled wounds progress through healing is debridement to remove devitalised tissue, including slough and eschar, that can prevent the wound from healing. A unique wound treatment called HydroTherapy aims to provide an optimal healing environment. The first step of HydroTherapy involves HydroClean plus™, this dressing enables removal of devitalised tissue through autolytic debridement and absorption of wound fluid...
December 2016: British Journal of Community Nursing
https://www.readbyqxmd.com/read/27922787/hydro-responsive-wound-dressings-simplify-t-i-m-e-wound-management-framework
#2
Karen Ousey, Alan A Rogers, Mark G Rippon
The development of wound management protocols and guidelines such as the T.I.M.E. acronym are useful tools to aid wound care practitioners deliver effective wound care. The tissue, infection/inflammation, moisture balance and edge of wound (T.I.M.E.) framework provides a systematic approach for the assessment and management of the majority of acute and chronic wounds. The debridement of devitalised tissue from the wound bed, the reduction in wound bioburden and effective management of wound exudate - i.e., wound bed preparation - are barriers to wound healing progression that are targeted by T...
December 2016: British Journal of Community Nursing
https://www.readbyqxmd.com/read/27919449/nonsteroidal-anti-inflammatory-drugs-may-affect-cytokine-response-and-benefit-healing-of-combat-related-extremity-wounds
#3
Felipe A Lisboa, Matthew J Bradley, Matthew T Hueman, Seth A Schobel, Beverly J Gaucher, Edda L Styrmisdottir, Benjamin K Potter, Jonathan A Forsberg, Eric A Elster
BACKGROUND: After adequate operative debridement and antimicrobial therapies, combat-related extremity wounds that either heal or fail are both associated with a distinct inflammatory response. Short-term use of nonsteroidal anti-inflammatory drugs in postoperative pain management may affect this response and, by consequence, the healing potential of these wounds. We investigated whether patients treated with nonsteroidal anti-inflammatory drugs had a distinct inflammatory response; different rates of critical colonization, defined as >10(5) colony forming units on quantitative bacteriology; and healing potential...
December 2, 2016: Surgery
https://www.readbyqxmd.com/read/27914451/effects-of-fibroin-microcarriers-on-inflammation-and-regeneration-of-deep-skin-wounds-in-mice
#4
A Y Arkhipova, M A Nosenko, N V Malyuchenko, R V Zvartsev, A M Moisenovich, A S Zhdanova, T V Vasil'eva, E A Gorshkova, I I Agapov, M S Drutskaya, S A Nedospasov, M M Moisenovich
The process of tissue regeneration following damage takes place with direct participation of the immune system. The use of biomaterials as scaffolds to facilitate healing of skin wounds is a new and interesting area of regenerative medicine and biomedical research. In many ways, the regenerative potential of biological material is related to its ability to modulate the inflammatory response. At the same time, all foreign materials, once implanted into a living tissue, to varying degree cause an immune reaction...
November 2016: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/27909641/a-case-series-of-complex-recalcitrant-wounds-treated-with-epidermal-grafts-harvested-from-an-automated-device
#5
Stephen S Cai, Arvind U Gowda, Karan Chopra, Rachel Waldman, Ronald P Silverman, Yvonne M Rasko
INTRODUCTION: Epidermal grafting has several advantages over full-thickness or split-thickness grafts in the treatment of complex non-healing wounds. These include the low risk of donor site complications, minimal patient discomfort, and abstention from the operating room. Traditionally, the lack of reliable epidermal harvesting techniques has limited its clinical utilization. The development of an automated suction blister epidermal graft (SBEG) harvesting device may facilitate clinical utilization of this technique...
October 30, 2016: Curēus
https://www.readbyqxmd.com/read/27908808/emergency-hybrid-approach-to-ruptured-femoral-pseudoaneurysm-in-hiv-positive-intravenous-drug-abusers
#6
Maurizio Domanin, Giovanni Romagnoni, Silvia Romagnoli, Antonio Rolli, Livio Gabrielli
PURPOSE: Chronic traumatism of the common femoral artery due to intravenous injection in drug abusers, in association with local infections and arterial wall weakening caused by HIV, can lead to the development of pseudoaneurysms. Rupture of pseudoaneurysm is a dramatic event in such patients and its correction is difficult and controversial. Most of the cases reported describe open surgical elective options, that consist in ligation, repair or substitution of the damaged arterial segment, employing when possible biological grafts...
November 28, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27905181/effectiveness-of-collagen-oxidised-regenerated-cellulose-silver-containing-composite-wound-dressing-for-the-treatment-of-medium-depth-split-thickness-skin-graft-donor-site-wounds-in-multi-morbid-patients-a-prospective-non-comparative-single-centre-study
#7
Alexander Konstantinow, Tatjana V Fischer, Johannes Ring
Split-thickness skin grafting (STSG) is a widely used method in reconstructive surgery, but donor site wounds (DSWs) are often slow healing and painful. This prospective study evaluated the performance of a composite wound dressing containing collagen/oxidised regenerated cellulose in the treatment of medium-depth (0·4 mm) DSWs in 25 multi-morbid patients with chronic leg ulcers requiring STSG. The range of patients' ages was 44-84 years (mean 71·6 years) with DSW sizes ranging between 12 and 162 cm(2) (mean 78 cm(2) )...
December 1, 2016: International Wound Journal
https://www.readbyqxmd.com/read/27903852/topical-honey-in-the-management-of-pediatric-peritoneal-dialysis-exit-sites
#8
Thomas A Forbes, Loren Shaw, Catherine Quinlan
International guidelines in peritoneal dialysis (PD) advocate for regular application of topical mupirocin in chronic PD exit-site care. A strong evidence base links this treatment to reduced rates of exit-site infections and peritonitis. However, emerging reports of increasing mupirocin resistance and gram-negative infections are threatening the long-term viability of topical antibiotic ointments as a prophylactic treatment. Medical grade honey has multiple proven antibacterial and wound healing properties...
November 2016: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/27891773/cigarette-smoke-alters-the-secretome-of-lung-epithelial-cells
#9
Alessandra Mossina, Christina Lukas, Juliane Merl-Pham, Franziska E Uhl, Kathrin Mutze, Andrea Schamberger, Claudia Staab-Weijnitz, Jie Jia, Ali Ö Yildirim, Melanie Königshoff, Stefanie M Hauck, Oliver Eickelberg, Silke Meiners
Cigarette smoke is the most relevant risk factor for the development of lung cancer and chronic obstructive pulmonary disease (COPD). Many of its more than 4500 chemicals are highly reactive thereby altering protein structure and function. Here, we used subcellular fractionation coupled to label-free quantitative mass spectrometry to globally assess alterations in the proteome of different compartments of lung epithelial cells upon exposure to cigarette smoke extract. Proteomic profiling of the human alveolar-derived cell line A549 revealed the most pronounced changes within the cellular secretome with preferential downregulation of proteins involved in wound healing and extracellular matrix (ECM) organization...
November 28, 2016: Proteomics
https://www.readbyqxmd.com/read/27887858/predictive-value-of-neutrophil-to-lymphocyte-ratio-in-diabetic-wound-healing
#10
Nasibeh Vatankhah, Younes Jahangiri, Gregory J Landry, Robert B McLafferty, Nabil J Alkayed, Gregory L Moneta, Amir F Azarbal
OBJECTIVE: The neutrophil-to-lymphocyte ratio (NLR) has been used as a surrogate marker of systemic inflammation. We sought to investigate the association between NLR and wound healing in diabetic wounds. METHODS: The outcomes of 120 diabetic foot ulcers in 101 patients referred from August 2011 to December 2014 were examined retrospectively. Demographic, patient-specific, and wound-specific variables as well as NLR at baseline visit were assessed. Outcomes were classified as ulcer healing, minor amputation, major amputation, and chronic ulcer...
November 22, 2016: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27883184/epigenetics-in-reactive-and-reparative-cardiac-fibrogenesis-the-promise-of-epigenetic-therapy
#11
REVIEW
Asish K Ghosh, Rahul Rai, Panagiotis Flevaris, Douglas E Vaughan
Epigenetic changes play a pivotal role in the development of a wide spectrum of human diseases including cardiovascular diseases, cancer, diabetes, and intellectual disabilities. Cardiac fibrogenesis is a common pathophysiological process seen during chronic and stress-induced accelerated cardiac aging. While adequate production of extracellular matrix (ECM) proteins is necessary for post-injury wound healing, excessive synthesis and accumulation of extracellular matrix protein in the stressed or injured hearts causes decreased or loss of lusitropy that leads to cardiac failure...
November 24, 2016: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/27879958/evaluation-of-a-6-year-old-multicentric-standard-endovascular-treatment-of-critical-limb-ischemia-in-the-drug-eluting-era
#12
Vincenzo Brizzi, Caroline Caradu, Xavier Berard, Gerard Sassoust, Dominique Midy, Eric Ducasse
BACKGROUND: There has been increasing evidence to support the endovascular- first approach in the treatment of below the knee (BTK) lesions. Plain Old Balloon Angioplasty (POBA), with bailout bare-metal stent scaffolding in case of flow limiting dissection or recoil, have been considered the standard treatment of choice but industries are continually developing innovative equipment and dedicated technologies, such as drug-eluting platforms whose use is increasingly extended, despite significant costs and lack of high-quality evidence to support a well- established strategy...
November 23, 2016: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/27875272/tenascin-c-at-a-glance
#13
REVIEW
Kim S Midwood, Matthias Chiquet, Richard P Tucker, Gertraud Orend
Tenascin-C (TNC) is a hexameric, multimodular extracellular matrix protein with several molecular forms that are created through alternative splicing and protein modifications. It is highly conserved amongst vertebrates, and molecular phylogeny indicates that it evolved before fibronectin. Tenascin-C has many extracellular binding partners, including matrix components, soluble factors and pathogens; it also influences cell phenotype directly through interactions with cell surface receptors. Tenascin-C protein synthesis is tightly regulated, with widespread protein distribution in embryonic tissues, but restricted distribution of tenascin-C in adult tissues...
December 1, 2016: Journal of Cell Science
https://www.readbyqxmd.com/read/27874893/abnormal-wound-healing-related-to-high-dose-systemic-corticosteroid-therapy-in-a-patient-with-ehlers-danlos-syndrome-benign-hypermobility-type
#14
Stephanie K Jacks, Matthew J Zirwas
The adverse impact of chronic corticosteroid therapy on wound healing has been well characterized, as has abnormal wound healing known to occur in the classic type of Ehlers-Danlos syndrome (EDS). In contrast, abnormal wound healing is absent in cases of EDS benign hypermobility type (EDS-BHT). We present the case of a patient with EDS-BHT with no history of abnormal wound healing who developed large nonhealing ulcers to sites of minor trauma after initiating therapy with high-dose systemic corticosteroids for dermatomyositis...
October 2016: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/27872074/glycoside-hydrolases-degrade-polymicrobial-bacterial-biofilms-in-wounds
#15
Derek Fleming, Laura Chahin, Kendra Rumbaugh
The persistent nature of chronic wounds leaves them highly susceptible to invasion by a variety of pathogens that have the ability to construct an Extracellular Polymeric Substance (EPS). This EPS makes the bacterial population, or biofilm, up to one-thousand-fold more antibiotic tolerant than planktonic cells, and makes wound healing extremely difficult. Thus, compounds which have the ability to degrade biofilms, but not host tissue components, are highly sought-after for clinical applications. In this study, we examined the efficacy of two glycoside hydrolases, alpha-amylase and cellulase, which break down complex polysaccharides, to effectively disrupt Staphylococcus aureus and Pseudomonas aeruginosa mono-culture and co-culture biofilms...
November 21, 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27869357/the-impact-of-endoscopic-sinus-surgery-on-paranasal-physiology-in-simulated-sinus-cavities
#16
Ravi Jain, Haribalan Kumar, Merryn Tawhai, Richard Douglas
BACKGROUND: Surgery improves symptoms for the majority of chronic rhinosinusitis (CRS) patients; however, physiological changes in the sinus cavities remain poorly characterized. Direct measurement of changes in airflow, pressure, temperature, humidity, and intranasal spray distribution following surgery is technically challenging. Accordingly, we have used computational fluid dynamic modeling to quantify how these parameters change postoperatively. METHODS: Computed tomography images from a normal control, a patient with CRS preoperatively and postoperatively, and a patient following an endoscopic Lothrop procedure (ELP) were used to create 4 three-dimensional models of the sinus cavities...
November 21, 2016: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/27869355/delivery-of-flightless-i-neutralizing-antibody-from-porous-silicon-nanoparticles-improves-wound-healing-in-diabetic-mice
#17
Christopher T Turner, Steven J P McInnes, Elizabeth Melville, Allison J Cowin, Nicolas H Voelcker
Flightless I (Flii) is elevated in human chronic wounds and is a negative regulator of wound repair. Decreasing its activity improves healing responses. Flii neutralizing antibodies (FnAbs) decrease Flii activity in vivo and hold significant promise as healing agents. However, to avoid the need for repeated application in a clinical setting and to protect the therapeutic antibody from the hostile environment of the wound, suitable delivery vehicles are required. In this study, the use of porous silicon nanoparticles (pSi NPs) is demonstrated for the controlled release of FnAb to diabetic wounds...
November 21, 2016: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/27868341/a-single-arm-trial-indirect-comparison-investigation-a-proof-of-concept-method-to-predict-venous-leg-ulcer-healing-time-for-a-new-acellular-synthetic-matrix-matched-to-standard-care-control
#18
Ronald Shannon, Andrea Nelson
To compare data on time to healing from two separate cohorts: one treated with a new acellular synthetic matrix plus standard care (SC) and one matched from four large UK pragmatic, randomised controlled trials [venous leg ulcer (VLU) evidence network]. We introduce a new proof-of-concept strategy to a VLU clinical evidence network, propensity score matching and sensitivity analysis to predict the feasibility of the new acellular synthetic matrix plus SC for success in future randomised, controlled clinical trials...
November 20, 2016: International Wound Journal
https://www.readbyqxmd.com/read/27867754/a-small-chimeric-fibronectin-fragment-accelerates-dermal-wound-repair-in-diabetic-mice
#19
Denise C Hocking, James R Brennan, Carol H Raeman
Objective: During wound repair, soluble fibronectin is converted into biologically active, insoluble fibrils via a cell-mediated process. This fibrillar, extracellular matrix (ECM) form of fibronectin stimulates cell processes critical to tissue repair. Nonhealing wounds show reduced levels of ECM fibronectin fibrils. The objective of this study was to produce a small, recombinant wound supplement with the biological activity of insoluble fibronectin fibrils. Approach: A chimeric fibronectin fragment was produced by inserting the integrin-binding Arg-Gly-Asp (RGD) loop from the tenth type III repeat of fibronectin (FNIII10) into the analogous site within the heparin-binding, bioactive fragment of the first type III repeat (FNIII1H)...
November 1, 2016: Advances in Wound Care
https://www.readbyqxmd.com/read/27867752/comparing-the-effectiveness-of-polymer-debriding-devices-using-a-porcine-wound-biofilm-model
#20
Holly N Wilkinson, Andrew J McBain, Christian Stephenson, Matthew J Hardman
Objective: Debridement to remove necrotic and/or infected tissue and promote active healing remains a cornerstone of contemporary chronic wound management. While there has been a recent shift toward less invasive polymer-based debriding devices, their efficacy requires rigorous evaluation. Approach: This study was designed to directly compare monofilament debriding devices to traditional gauze using a wounded porcine skin biofilm model with standardized application parameters. Biofilm removal was determined using a surface viability assay, bacterial counts, histological assessment, and scanning electron microscopy (SEM)...
November 1, 2016: Advances in Wound Care
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