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Silver urinary catheter

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https://www.readbyqxmd.com/read/28745297/foley-catheters-functionalised-with-a-synergistic-combination-of-antibiotics-and-silver-nanoparticles-resist-biofilm-formation
#1
Rajendran Mala, Antony Annie Aglin, Arul Selvaraj Ruby Celsia, Sivalingam Geerthika, Narbahvi Kiruthika, Chinnathambi VazagaPriya, Kumarapillai Srinivasa Kumar
Foley catheters are inevitable in health care unit. Pathogens colonise and form biofilm on catheter causing catheter-associated urinary tract infection. Therefore, the authors aimed to functionalise catheter to resist biofilm formation. The authors impregnated urinary catheters with a synergistic combination of antibiotics and silver nanoparticles (SNPs) to evaluate antibiofilm efficacy in vitro and in vivo. SNPs were synthesised using Spirulina platensis. Synergy between the SNPs and antibiotics was determined by the checker-board method...
August 2017: IET Nanobiotechnology
https://www.readbyqxmd.com/read/28623661/graphene-nanolayers-as-a-new-method-for-bacterial-biofilm-prevention-preliminary-results
#2
Łucja Dybowska-Sarapuk, Andrzej Kotela, Jakub Krzemiński, Marta Wróblewska, Halina Marchel, Magdalena Romaniec, Paweł Łęgosz, Małgorzata Jakubowska
Biofilms are microbial communities of surface-attached cells embedded in a self-produced extracellular matrix. They have been found to play a role in a wide variety of infections, including catheter-related urinary tract and bloodstream infections, and, therefore remain a significant source of morbidity and mortality among the world's population. Recently, much attention has been devoted to the prevention of biofilm formation on implant surfaces. Nanomaterials such as graphene, characterized by antibacterial activity and low toxicity to human cells, are promising candidates for biomedical applications...
June 16, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28578163/efficacy-and-safety-of-urinary-catheters-with-silver-alloy-coating-in-spinal-cord-injured-patients-a-multicentric-pragmatic-randomized-controlled-trial-the-escale-trial
#3
Xavier Bonfill, David Rigau, Manuel E Fuertes, Juana M Barrera-Chacón, María L Jáuregui-Abrisqueta, Sebastian Salvador, Carolina M Alemán-Sánchez, Albert Borau, Manuel Bea-Muñoz, Begoña Hidalgo, Maria J Andrade, Juan R Espinosa, María José Martínez-Zapata
BACKGROUND: Patients with spinal cord injury (SCI) that carry indwelling urinary catheters have an increased risk of urinary tract infection (UTIs). Antiseptic Silver Alloy-Coated silicone (SAC) urinary catheters prove to be a promising intervention to reduce UTIs; however, current evidence cannot be extrapolated to spinal cord injured patients. PURPOSE: Assess the efficacy of SAC urinary catheters for preventing catheter-associated urinary tract infections (CA-UTI)...
May 31, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28526271/an-in-vitro-urinary-catheterization-model-that-approximates-clinical-conditions-for-evaluation-of-innovations-to-prevent-catheter-associated-urinary-tract-infections
#4
R Y R Chua, K Lim, S S J Leong, P A Tambyah, B Ho
BACKGROUND: Catheter associated urinary tract infections (CAUTI) account for about 25% of nosocomial infections globally and often result in increased morbidity and healthcare costs. An added concern is the presence of microbial biofilms which are major reservoirs of bacteria, especially antibiotic resistant bacteria, in catheters. Since the practice of the closed drainage system, innovations to combat CAUTI have not produced significant improvements in clinical outcomes. The lack of a robust laboratory platform to test new CAUTI preventive strategies may impede development of novel technologies...
May 16, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28247658/-comparative-evaluation-of-the-efficacy-of-uncoated-and-coated-with-silver-silicone-urethral-catheters-for-prevention-of-urinary-tract-infections-among-patients-of-the-intensive-care-unit
#5
V I Sergevnin, N M Klyuchareva, D P Antipin, E N Laricheva
The goal of the research is to compare and evaluate the efficiency of using silver - coated silicone urinary catheters and catheters without coating for prevention urinary tract infections. MATERIALS AND METHODS: The study included 57 adult patients of intensive care unit, which have silicone bladder catheters "Foley" without coating, and 57 patients were catheterized using catheters coated with silver. We revealed symptomatic and asymptomatic urinary tract infections in our research...
April 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28211358/a-prospective-interventional-study-to-examine-the-effect-of-a-silver-alloy-and-hydrogel-coated-catheter-on-the-incidence-of-catheter-associated-urinary-tract-infection
#6
P Hy Chung, C Wy Wong, C Kc Lai, H K Siu, D Nc Tsang, K Y Yeung, D Km Ip, P Kh Tam
INTRODUCTION: Catheter-associated urinary tract infection is a major hospital-acquired infection. This study aimed to analyse the effect of a silver alloy and hydrogel-coated catheter on the occurrence of catheter-associated urinary tract infection. METHODS: This was a 1-year prospective study conducted at a single centre in Hong Kong. Adult patients with an indwelling urinary catheter for longer than 24 hours were recruited. The incidence of catheter-associated urinary tract infection in patients with a conventional latex Foley catheter without hydrogel was compared with that in patients with a silver alloy and hydrogel-coated catheter...
February 17, 2017: Hong Kong Medical Journal, Xianggang Yi Xue za Zhi
https://www.readbyqxmd.com/read/28100054/efficacy-of-silver-hydrophilic-poly-p-xylylene-on-preventing-bacterial-growth-and-biofilm-formation-in-urinary-catheters
#7
Hamideh Heidari Zare, Viktorija Juhart, Attila Vass, Gerhard Franz, Dieter Jocham
Catheter associated urinary tract infections (CAUTI), caused by several strains of bacteria, are a common complication for catheterized patients. This may eventually lead to a blockage of the catheter due to the formation of a crystalline or amorphous biofilm. Inhibiting bacteria should result in a longer application time free of complaints. This issue has been investigated using an innovative type of silver-coated catheter with a semipermeable cap layer to prevent CAUTI. In this work, two different types of silver catheters were investigated, both of which were capped with poly(p-xylylene) (PPX-N) and exhibited different surface properties that completely changed their wetting conduct with water...
January 18, 2017: Biointerphases
https://www.readbyqxmd.com/read/27612730/the-potential-of-photo-deposited-silver-coatings-on-foley-catheters-to-prevent-urinary-tract-infections
#8
Ian Richard Cooper, Mauro Pollini, Federica Paladini
Catheter-associated urinary tract infection (CAUTI) represents one of the most common causes of morbidity and mortality. The resistance demonstrated by many microorganisms to conventional antibiotic therapies and the increasing health-care costs have recently encouraged the definition of alternative preventive strategies, which can have a positive effect in the management of infections. Antimicrobial urinary catheters have been developed through the photo-chemical deposition of silver coatings on the external and luminal surfaces...
December 1, 2016: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/27575798/nurse-driven-catheter-associated-urinary-tract-infection-reduction-process-and-protocol-development-through-an-academic-practice-partnership
#9
Pamela Johnson, Anna Gilman, Alicia Lintner, Ellen Buckner
Translating evidence-based practices to the bedside can be facilitated by an active academic-practice partnership between nursing faculty and frontline nursing staff. A collaborative effort between the university's academic nurses and the medical center's clinical nurses explored, created, implemented, and evaluated an evidence-based nurse-driven protocol for decreasing the rate of catheter-associated urinary tract infections. The nurse-driven protocol was piloted in 4 intensive care units and included nurse-driven orders for catheter discontinuation, utilization of smaller bore urinary catheters, addition of silver-based cleansing products for urinary catheter care, and education of staff on routine catheter care and maintenance...
October 2016: Critical Care Nursing Quarterly
https://www.readbyqxmd.com/read/27461341/application-of-targeted-molecular-and-material-property-optimization-to-bacterial-attachment-resistant-meth-acrylate-polymers
#10
Kevin Adlington, Nam T Nguyen, Elizabeth Eaves, Jing Yang, Chien-Yi Chang, Jianing Li, Alexandra L Gower, Amy Stimpson, Daniel G Anderson, Robert Langer, Martyn C Davies, Andrew L Hook, Paul Williams, Morgan R Alexander, Derek J Irvine
Developing medical devices that resist bacterial attachment and subsequent biofilm formation is highly desirable. In this paper, we report the optimization of the molecular structure and thus material properties of a range of (meth)acrylate copolymers which contain monomers reported to deliver bacterial resistance to surfaces. This optimization allows such monomers to be employed within novel coatings to reduce bacterial attachment to silicone urinary catheters. We show that the flexibility of copolymers can be tuned to match that of the silicone catheter substrate, by copolymerizing these polymers with a lower Tg monomer such that it passes the flexing fatigue tests as coatings upon catheters, that the homopolymers failed...
September 12, 2016: Biomacromolecules
https://www.readbyqxmd.com/read/27328334/catheter-associated-urinary-tract-infections-and-other-infections-in-patients-hospitalized-for-acute-stroke-a-prospective-cohort-study-of-two-different-silicone-catheters
#11
Karin Stenzelius, Liselott Laszlo, Magdalena Madeja, Hélène Pessah-Rasmusson, Magnus Grabe
OBJECTIVE: Catheter-associated urinary tract infection (CAUTI) is the most common healthcare-associated infection. The primary aim of this study was to investigate whether the use of a silicone catheter coated with an ultrathin layer of a combination of the noble metals gold, palladium and silver (BIP™-silicone catheter) could reduce the incidence of CAUTI and antibiotic prescription compared with a standard silicone catheter in a cohort of acute neurological patients suffering primarily from stroke...
December 2016: Scandinavian Journal of Urology
https://www.readbyqxmd.com/read/27207160/first-report-of-macroscopic-biofilm-formation-caused-by-candida-albicans-on-silver-hydrogel-coated-urinary-catheters
#12
Mehmet Burak Selek, Tuğba Kula Atik, Bayhan Bektöre, Bülent Atik, Serkan Demir, Orhan Baylan, Mustafa Özyurt
We report macroscopic biofilms on silver hydrogel-coated urinary catheters in 2 patients from 2 different intensive care units. The catheters were removed on observation of a white, jelly layer on the catheters, respectively, 9 and 21 days after insertion. Yeast cells and pseudohyphal structures were observed with microscopy. Both isolates were identified as Candida albicans. To our knowledge, these are the first cases demonstrating the formation of macroscopic biofilm layers on silver nitrate-coated catheters in the literature...
May 17, 2016: American Journal of Infection Control
https://www.readbyqxmd.com/read/26848066/telephone-survey-of-infection-control-and-antibiotic-stewardship-practices-in-long-term-care-facilities-in-maryland
#13
Mia Yang, Karen Vleck, Michele Bellantoni, Geeta Sood
BACKGROUND: Multidrug-resistant organisms are an emerging and serious threat to the care of patients. Long-term care facilities are considered a reservoir of these organisms partly because of the over-prescribing of antibiotics. Antibiotic use is common in long-term care facilities. Antibiotic stewardship programs have been shown to reduce antibiotic consumption in acute-care facilities. The purpose of our study is to investigate existing infection-control practices and antibiotic stewardship programs in long-term care facilities in Maryland...
June 1, 2016: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/26625869/tolerability-and-performance-of-bip-endotracheal-tubes-with-noble-metal-alloy-coating-a-randomized-clinical-evaluation-study
#14
RANDOMIZED CONTROLLED TRIAL
Gunilla Björling, Dorota Johansson, Linda Bergström, Shah Jalal, Ivar Kohn, Claes Frostell, Sigridur Kalman
BACKGROUND: Hospital acquired infections worsen the outcome of patients treated in intensive care units and are costly. Coatings with silver or metal alloys may reduce or alter the formation of biofilm on invasive medical devices. An endotracheal tube (ETT) is used to connect the patient to a ventilator and coated tubes have been tested in relation to bacterial colonization and respiratory infection. In the present study, we aimed to evaluate and compare a coated and uncoated ETT for patient symptoms and local tracheal tolerability during short term clinical use...
December 1, 2015: BMC Anesthesiology
https://www.readbyqxmd.com/read/26542043/origin-and-dissemination-of-antimicrobial-resistance-among-uropathogenic-escherichia-coli
#15
REVIEW
Lisa K Nolan, Ganwu Li, Catherine M Logue
Antimicrobial agents of various types have important bearing on the outcomes of microbial infections. These agents may be bacteriostatic or -cidal, exert their impact via various means, originate from a living organism or a laboratory, and appropriately be used in or on living tissue or not. Though the primary focus of this chapter is on resistance to the antimicrobial agents used to treat uropathogenic Escherichia coli (UPEC)-caused urinary tract infections (UTIs), some attention will be given to UPEC's resistance to silver-containing antiseptics, which may be incorporated into catheters to prevent foreign body-associated UTIs...
October 2015: Microbiology Spectrum
https://www.readbyqxmd.com/read/26522971/investigation-of-antibacterial-activity-and-biofilm-formation-of-silicones-coated-with-minocycline-rifampicin-silver-nitrate-and-nitrofurantoin-for-short-term-utilization-in-in-vitro-urinary-system-models
#16
Ahmet Salvarci, Mehmet Koroglu, Berna Erayman
OBJECTIVE: To analyze antimicrobial activity and biofilm formation on silicones coated with antimicrobial substances in in vivo short-term catheterization simulation using our newly developed in vitro urinary system model and to compare minocycline-rifampin (MR)-, silver nitrate-, and nitrofurantoin (NF)-coated silicone discs. MATERIALS AND METHODS: Silicone discs were exposed to bacterial urine suspension for 168 hours. The antimicrobial activities were assessed in the medium, and the inhibition zone diameters were measured...
February 2016: Urology
https://www.readbyqxmd.com/read/26282899/irrigation-with-n-n-dichloro-2-2-dimethyltaurine-nvc-422-in-a-citrate-buffer-maintains-urinary-catheter-patency-in-vitro-and-prevents-encrustation-by-proteus-mirabilis
#17
Suriani Abdul Rani, Chris Celeri, Ron Najafi, Keith Bley, Dmitri Debabov
Long-term use of indwelling urinary catheters can lead to urinary tract infections and loss of catheter patency due to encrustation and blockage. Encrustation of urinary catheters is due to formation of crystalline biofilms by urease-producing microorganisms such as Proteus mirabilis. An in vitro catheter biofilm model (CBM) was used to evaluate current methods for maintaining urinary catheter patency. We compared antimicrobial-coated urinary Foley catheters, with both available catheter irrigation solutions and investigational solutions containing NVC-422 (N,N-dichloro-2,2-dimethyltaurine; a novel broad-spectrum antimicrobial)...
June 2016: Urolithiasis
https://www.readbyqxmd.com/read/26048526/inhibitory-effect-of-silver-nanoparticle-fabricated-urinary-catheter-on-colonization-efficiency-of-coagulase-negative-staphylococci
#18
Roshmi Thomas, K R Soumya, Jyothis Mathew, E K Radhakrishnan
Multiple antibiotic resistance and diverse mechanisms for biofilm formation make Coagulase Negative Staphylococci (CoNS) to cause infections associated with insertion of medical devices. As the infectious life style of CoNS pose difficult to treat conditions, materials with multitargeted antimicrobial effect can offer promising ways to modify the surface of devices to limit microbial growth. The broad spectrum of antimicrobial properties shown by silver nanoparticles (AgNPs) make it as an excellent candidate to act on device surface as persistent antimicrobial structures...
August 2015: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/25969583/in-vitro-evaluation-of-the-impact-of-silver-coating-on-escherichia-coli-adherence-to-urinary-catheters
#19
Adam T Ogilvie, Brigitte A Brisson, Ameet Singh, J Scott Weese
A silver-coated urinary catheter was compared to a non-silver-coated urinary catheter for the ability to reduce adherence of 6 isolates of Escherichia coli. Catheters were incubated with E. coli strains for 0, 24, 48, and 72 h. Broth was sampled at all time points to determine CFU/mL. Catheters were subjected to sonication to determine adhered bacteria at all time points, and scanning electron microscopy (SEM) to semi-quantitatively assess biofilm formation. Silver-coated catheters had significantly less adhered bacteria than non-silver-coated catheters at times 24, 48, and 72 h...
May 2015: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/25804335/-incidence-of-urinary-tract-infections-after-cardiac-surgery-comparative-study-accordind-to-catheterization-device
#20
RANDOMIZED CONTROLLED TRIAL
I Hidalgo Fabrellas, M Rebollo Pavón, M Planas Canals, M Barbero Cabezas
INTRODUCTION: Urinary tract infections (UTI) associated with urethral catheterization are the second cause of nosocomial infections in Intensive care units. We confirm a UTI when we get a result of 100,000 CFU/ml with at least one microorganism in a urine culture. MAIN OBJECTIVE: Compare and determine the incidence of UTI in cardiac surgery postpoperative patients according to the catheterization device. METHODS: A prospective, randomized analytical observational study of patients in the immediate cardiac surgery postoperative period...
April 2015: Enfermería Intensiva
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