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https://www.readbyqxmd.com/read/29034056/effects-of-sterilization-on-shape-memory-polyurethane-embolic-foam-devices
#1
Rachael Muschalek, Landon Nash, Ryan Jones, Sayyeda M Hasan, Brandis K Keller, Mary Beth B Monroe, Duncan J Maitland
Polyurethane shape memory polymer (SMP) foams have been developed for various embolic medical devices due to their unique properties in minimally invasive biomedical applications. These polyurethane materials can be stored in a secondary shape, from which they can recover their primary shape after exposure to an external stimulus, such as heat and water exposure. Tailored actuation temperatures of SMPs provide benefits for minimally invasive biomedical applications, but incur significant challenges for SMP-based medical device sterilization...
September 2017: Journal of Medical Devices
https://www.readbyqxmd.com/read/29033046/eschar-removal-by-bromelain-based-enzymatic-debridement-nexobrid-%C3%A2-in-burns-an-european-consensus
#2
Christoph Hirche, Antonella Citterio, Henk Hoeksema, Ján Koller, Martina Lehner, José Ramón Martinez, Stan Monstrey, Alexandra Murray, Jan A Plock, Frank Sander, Alexandra Schulz, Benjamin Ziegler, Ulrich Kneser
Early debridement and/or eschar removal is regarded as a significant step in the treatment of deep partial and full thickness burns. It aims to control wound bioburden and allows early wound closure by conservative treatment or skin grafting. Preservation of viable dermis accompanied by early wound closure, is regarded as a necessary step to reduce scar related complication, e.g. functional limitations and/or unaesthetic scar formation. Aside from the classical techniques of surgical excision as tangential excision for eschar removal, hydro-surgery, maggot therapy, laser, enzymatic debridement have been described as additional techniques in the burn surgeon's armamentarium...
October 12, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28976341/preliminary-results-of-a-topically-applied-bacteria-specific-antibiotic-gel-to-improve-wound-healing
#3
Caitlin S Zarick, Elizabeth A Benkert, Noah G Oliver, John S Steinberg, Karen K Evans, Christopher E Attinger, Zinnia M Rocha, Paul J Kim
INTRODUCTION: Advances in molecular diagnostic medicine have allowed for more rapid, accurate, and comprehensive methods for identifying microorganisms in a chronic wound, which led to the de- velopment and use of a tailored topical antibiotic gel aimed at treating this bioburden. OBJECTIVE: This is a retrospective chart review evalu- ating the authors' early experience with the use of bacteria-speci c antimicrobial gel therapy on chronic lower extremity wounds that have not responded to standard therapy...
September 26, 2017: Wounds: a Compendium of Clinical Research and Practice
https://www.readbyqxmd.com/read/28964884/a-cross-sectional-point-prevalence-survey-to-study-the-environmental-contamination-of-nosocomial-pathogens-in-intensive-care-units-under-real-life-conditions
#4
I Wille, A Mayr, P Kreidl, C Brühwasser, G Hinterberger, A Fritz, W Posch, S Fuchs, A Obwegeser, D Orth-Höller, C Lass-Flörl
BACKGROUND: In intensive care units (ICUs) inanimate surfaces and equipment may be contaminated by nosocomial pathogens, including multi-drug resistant microorganisms. AIMS: To assess the degree of patients' close and distant environmental contamination including healthcare workers' (HCWs) hands with nosocomial pathogens under real life situations and to investigate potential transmission events. METHODS: For the course of three weeks agar contact samples were taken close and distant to the patient area and from HCWs' hands in eight ICUs of a tertiary care hospital in Innsbruck, Austria...
September 27, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28885829/membrane-active-amphipathic-peptide-wrl3-with-in-vitro-antibiofilmcapability-and-in-vivo-efficacy-in-treating-mrsa-burn-wound-infections
#5
Zhi Ma, Jinzhi Han, Bingxue Chang, Ling Gao, Zhaoxin Lu, Fengxia Lu, Haizhen Zhao, Chong Zhang, Xiaomei Bie
Methicillin-resistant Staphylococcus aureus (MRSA) has become increasingly prevalent in hospitals, clinics, and the community. MRSA can cause significant and even lethal infections, especially in skin burn wounds. The currently available topical agents have largely failed to eliminate MRSA infections due to resistance. Therefore, there is an urgent need for new and effective approaches for treating MRSA. Here, we show that a novel engineered amphipathic peptide, WRL3, exhibits potent antimicrobial activity against MRSA, even in the presence of various salts or serum...
September 8, 2017: ACS Infectious Diseases
https://www.readbyqxmd.com/read/28876273/assessment-of-severe-extremity-wound-bioburden-at-the-time-of-definitive-wound-closure-or-coverage-bioburden-study-erratum
#6
(no author information available yet)
No abstract text is available yet for this article.
September 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28868803/epidemiology-of-contact-lens-induced-infiltrates-an-updated-review
#7
REVIEW
Kelsy R Steele, Loretta Szczotka-Flynn
Corneal infiltrative events (CIEs) are well established as a risk associated with soft contact lens wear. The incidence of symptomatic CIEs during extended soft lens wear ranges from 2.5 to six per cent; when asymptomatic CIEs are included, the incidence can be as high as 20-25 per cent. In daily soft lens wear, the annual incidence of symptomatic CIEs is about three per cent. There are various accepted methods of categorising CIEs, and a scoring system based on clinical signs and symptoms is a good approach to grade severity...
September 4, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28811108/methylene-blue-guided-debridement-as-an-intraoperative-adjunct-for-the-surgical-treatment-of-periprosthetic-joint-infection
#8
Jeremy D Shaw, Steve Miller, Anna Plourde, Daniel L Shaw, Rosanna Wustrack, Erik N Hansen
BACKGROUND: Current methods to identify infected tissue in periprosthetic joint infection (PJI) are inadequate. The purpose of this study was (1) to assess methylene blue-guided surgical debridement as a novel technique in PJI using quantitative microbiology and (2) to evaluate clinical success based on eradication of infection and infection-free survival. METHODS: Sixteen total knee arthroplasty patients meeting Musculoskeletal Infection Society criteria for PJI undergoing the first stage of 2-stage exchange arthroplasty were included in this prospective study...
July 21, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28797124/preclinical-development-of-a-vaccine-against-oligomeric-alpha-synuclein-based-on-virus-like-particles
#9
Marika Doucet, Aadil El-Turabi, Franziska Zabel, Benjamin H M Hunn, Nora Bengoa-Vergniory, Milena Cioroch, Mauricio Ramm, Amy M Smith, Ariane Cruz Gomes, Gustavo Cabral de Miranda, Richard Wade-Martins, Martin F Bachmann
Parkinson's disease (PD) is a progressive and currently incurable neurological disorder characterised by the loss of midbrain dopaminergic neurons and the accumulation of aggregated alpha-synuclein (a-syn). Oligomeric a-syn is proposed to play a central role in spreading protein aggregation in the brain with associated cellular toxicity contributing to a progressive neurological decline. For this reason, a-syn oligomers have attracted interest as therapeutic targets for neurodegenerative conditions such as PD and other alpha-synucleinopathies...
2017: PloS One
https://www.readbyqxmd.com/read/28771993/a-pegylated-fibrin-hydrogel-based-antimicrobial-wound-dressing-controls-infection-without-impeding-wound-healing
#10
Joel Gil, Shanmugasundaram Natesan, Jie Li, Jose Valdes, Andrew Harding, Michael Solis, Stephen C Davis, Robert J Christy
Combat injuries are associated with a high incidence of infection, and there is a continuing need for improved approaches to control infection and promote wound healing. Due to the possible local and systemic adverse effects of standard 1% cream formulation (Silvadene), we had previously developed a polyethylene glycol (PEGylated) fibrin hydrogel (FPEG)-based wound dressing for the controlled delivery of silver sulfadiazine (SSD) entrapped in chitosan microspheres (CSM). In this study, we have evaluated the antimicrobial and wound healing efficacy of SSD-CSM-FPEG using a full-thickness porcine wound infected with Pseudomonas aeruginosa...
August 2, 2017: International Wound Journal
https://www.readbyqxmd.com/read/28745010/the-detrimental-impact-of-extracellular-bacterial-proteases-on-wound-healing
#11
Sharon Lindsay, Angela Oates, Katie Bourdillon
In addition to clinical signs of infection (e.g. inflammation, purulence and pain), a microbial count of ≥10(5) colony-forming units/g has historically been used to define wound infection. However, it is increasingly recognised that, rather than a high bioburden level alone being detrimental to wound healing, it is the virulence of the invading microorganism and the host's immune status that can affect clinical outcomes. Bacteria, such as Pseudomonas aeruginosa, Staphylococcus aureus and Staphylococcus epidermidis, have developed a range of virulence factors to help them overcome host defences and proliferate within the underlying soft tissue...
July 25, 2017: International Wound Journal
https://www.readbyqxmd.com/read/28732741/long-acting-water-stable-organosilane-agent-and-its-sustained-effect-on-reducing-microbial-load-in-an-intensive-care-unit
#12
Katie Fitton, Kimberly R Barber, Alison Karamon, Nate Zuehlke, Sara Atwell, Susan Enright
BACKGROUND: Contaminated hospital surfaces contribute significantly to the transmission of health care-associated infections. Although disinfectants reduce bioburden by up to 99%, bacterial growth can rebound within hours to precleaning levels. We tested the effectiveness of an innovative, long-acting water-stable organosilane (WSO) to achieve sustained decreases in bioburden on hard surfaces. METHODS: A 5-month prospective, randomized, double-blind controlled study was performed...
July 18, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28732530/minocycline-modulates-nf%C3%AE%C2%BAb-phosphorylation-and-enhances-antimicrobial-activity-against-staphylococcus-aureus-in-mesenchymal-stromal-stem-cells
#13
Alberto Daniel Guerra, Warren E Rose, Peiman Hematti, W John Kao
BACKGROUND: Mesenchymal stromal/stem cells (MSCs) have demonstrated pro-healing properties due to their anti-inflammatory, angiogenic, and even antibacterial properties. We have shown previously that minocycline enhances the wound healing phenotype of MSCs, and MSCs encapsulated in poly(ethylene glycol) and gelatin-based hydrogels with minocycline have antibacterial properties against Staphylococcus aureus (SA). Here, we investigated the signaling pathway that minocycline modulates in MSCs which results in their enhanced wound healing phenotype and determined whether preconditioning MSCs with minocycline has an effect on antimicrobial activity...
July 21, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28726559/supercritical-carbon-dioxide-assisted-decellularization-of-aorta-and-cornea
#14
Selcan Guler, Bahar Aslan, Pezhman Hosseinian, Halil Murat Aydin
Tissue engineering approaches utilize both natural and synthetic materials in the repair and regeneration processes. A naturally sourced material for this purpose is required to be free from any antigenic matter such as cells or cellular components. Decellularization of tissues may be achieved through chemical or physical removal agents. Supercritical carbon dioxide (sc-CO2) has been used on the purpose of removing bioburden from tissues and offers an alternative to the traditionally used treatment methods...
September 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/28696230/implications-of-antimicrobial-combinations-in-complex-wound-biofilms-containing-fungi
#15
Eleanor M Townsend, Leighann Sherry, Ryan Kean, Donald Hansom, William G Mackay, Craig Williams, John Butcher, Gordon Ramage
Diabetic foot ulcer treatment currently focuses on targeting bacterial biofilms, while dismissing fungi. To investigate this, we used an in vitro biofilm model containing bacteria and fungi, reflective of the wound environment, to test the impact of antimicrobials. Here we showed that while monotreatment approaches influenced biofilm composition, this had no discernible effect on overall quantity. Only by combining bacterium- and fungus-specific antibiotics were we able to decrease the biofilm bioburden, irrespective of composition...
September 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28684346/antibiotic-loaded-bone-graft-for-reduction-of-surgical-site-infection-in-spinal-fusion
#16
Stefanie M Shiels, Vivek P Raut, Patrick B Patterson, Brian R Barnes, Joseph C Wenke
BACKGROUND CONTEXT: Infections remain a leading complication associated with spinal arthrodesis, regardless of the use of prophylactic antibiotics and improved surgical techniques, with incidence of infection as high as 8.2%. Infection prolongs antibiotic usage, increases hospital time, and inevitably inflates overall treatment costs. Local antibiotics, such as vancomycin, have been used in combination with fusion materials over the past decade to decrease infection risk. An ideal graft material would serve a dual role: encourage vertebral fusion while reducing incidence of infection...
July 3, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28625700/the-effectiveness-of-sterilization-for-flexible-ureteroscopes-a-real-world-study
#17
Cori L Ofstead, Otis L Heymann, Mariah R Quick, Ellen A Johnson, John E Eiland, Harry P Wetzler
BACKGROUND: There are no guidelines or quality benchmarks specific to ureteroscope reprocessing, and patient injuries and infections have been linked to ureteroscopes. This prospective study evaluated ureteroscope reprocessing effectiveness. METHODS: Reprocessing practices at 2 institutions were assessed. Microbial cultures, biochemical tests, and visual inspections were conducted on sterilized ureteroscopes. RESULTS: Researchers examined 16 ureteroscopes after manual cleaning and sterilization using hydrogen peroxide gas...
May 4, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28624776/mold-control-and-detection-in-biological-drug-substance-manufacturing-facilities-an-industry-perspective
#18
Anita Bawa, Sofia Asefi, Stephanie Ramsey, Christine Arbesser-Rastburg, Mousumi Paul, Fran Leira, Tracy Landeryou, Bindhu Reddy, Marie Murphy, Barbara Daddis, David Bain
No abstract text is available yet for this article.
September 2017: PDA Journal of Pharmaceutical Science and Technology
https://www.readbyqxmd.com/read/28602266/does-negative-pressure-wound-therapy-influence-subjacent-bacterial-growth-a-systematic-review
#19
REVIEW
Graeme E Glass, George R F Murphy, Jagdeep Nanchahal
BACKGROUND: Negative-pressure wound therapy is a ubiquitous wound management resource. The influence of NPWT on the bacterial bioburden of the subjacent wound remains unclear. We sought to examine the evidence. DATASOURCES: MEDLINE, Embase, PubMed, the Cochrane Database of Systematic Reviews and the Cochrane Controlled Trials Register were searched for articles quantitatively evaluating bacterial load under NPWT. RESULTS: Twenty-four studies met the inclusion criteria including 4 randomised controlled trials, 8 clinical series and 12 experimental studies...
August 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28599034/a-prospective-randomized-controlled-two-arm-clinical-study-evaluating-the-efficacy-of-a-bioelectric-dressing-system-for-blister-management-in-us-army-ranger-recruits
#20
RANDOMIZED CONTROLLED TRIAL
Greggory J Housler, Sue Cross, Vanessa Marcel, Daniel O Kennedy, Michael Husband, Andrew Register, Thomas Roberts, Seth Grubbs, Douglas Dudewicz, Nathan Setka, Curt Bay, Martin E Wendelken, Mina J Izadjoo
This study focused on a clinically relevant healthcare problem in the military: acute soft tissue wounds, or blisters. The trial was a prospective, controlled, randomized two-arm study evaluating the efficacy of a bioelectric dressing, Procellera®, applied topically two to three times per week for 2 weeks to blisters developed in Ranger trainees during training at Fort Benning, Georgia. A total of 80 US Army Ranger recruits with blister wounds below the knee were randomly assigned to one of two treatment groups (n = 40/group)...
December 0: Journal of Special Operations Medicine: a Peer Reviewed Journal for SOF Medical Professionals
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