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https://www.readbyqxmd.com/read/28346255/splash-safety-during-dermatologic-procedures-among-us-dermatology-residents
#1
Dorota Z Korta, Lance W Chapman, Patrick K Lee, Kenneth G Linden
BACKGROUND: Dermatologists are at potential risk of acquiring infections from contamination of the mucous membranes by blood and body fluids. However, there are little data on splash safety during procedural dermatology. OBJECTIVE: To determine dermatology resident perceptions about splash risk during dermatologic procedures and to quantify the rate of protective equipment use. METHODS: An anonymous on-line survey was sent to 108 United States ACGME-approved dermatology residency programs assessing frequency of facial protection during dermatologic procedures, personal history of splash injury, and, if applicable, reasons for not always wearing facial protection...
March 23, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28341192/potential-infection-control-risks-associated-with-ultrasound-equipment-a-bacterial-perspective
#2
Susan Campbell Westerway, Jocelyne M Basseal, Adam Brockway, Jon A Hyett, Dee A Carter
Ultrasound equipment used in trans-abdominal (TA) and trans-vaginal (TV) examination may carry bacterial contamination and pose risks to infection control during ultrasound examination. We aimed to describe the prevalence of bacterial contamination on ultrasound probes, gel, machine keyboard and cords and examined the effectiveness of low- and high-level disinfection techniques. This study was performed at a public hospital and a private practice. A total of 171 swabs were analyzed and bacterial species were identified using matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) analysis and polymerase chain reaction (PCR)...
February 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28340959/molecular-detection-of-clostridium-difficile-on-inert-surfaces-from-a-costa-rican-hospital-during-and-after-an-outbreak
#3
Luisa Morales, César Rodríguez, María Del Mar Gamboa-Coronado
BACKGROUND: Hospital transmission of Clostridium difficile is fostered by contamination of surfaces and medical equipment with spores highly resistant to disinfectants and regular cleaning procedures. Despite the outbreaks and fatalities that C difficile causes, its epidemiology has not been studied in hospitals from middle- and low-income countries. To tackle this knowledge gap, the detection frequency of C difficile DNA on inert surfaces of a major Costa Rican hospital during and after an outbreak was compared...
December 1, 2016: American Journal of Infection Control
https://www.readbyqxmd.com/read/28332639/evaluation-of-the-bacteriological-quality-of-raw-cow-s-milk-at-various-stages-of-the-milk-production-chain-on-farms-in-algeria-%C3%A2-oie-world-organisation-for-animal-health-2016
#4
M Hamiroune, A Berber, S Boubekeur
This study evaluates hygiene practices on 53 dairy farms in the Jijel and Blida regions of Algeria. A survey questionnaire was drawn up covering milking conditions and cleaning of the equipment. In parallel, bacteriological analyses were carried out to estimate the rate, source and development of bacterial contamination in raw milk produced on the farm. In addition, screening was performed to detect the presence of inhibitor residues. The results of the survey revealed poor livestock conditions and milking practices that could explain the presence of bacteria in cow's milk...
December 2016: Revue Scientifique et Technique
https://www.readbyqxmd.com/read/28332638/water-quality-in-turkey-farms-in-khemisset-morocco-and-potential-risk-factors
#5
A El Allaoui, F Rhazi Filali, A Derouich
The objectives of this study were to assess the microbiological and physical/chemical quality of water in broiler turkey farms in the province of Khemisset (north-western Morocco) and, based on a questionnaire, to ascertain potential risk factors for contamination of drinking water with faecal coliforms. A total of 80 samples were collected and analysed in 20 farms (four from each farm). At the main inlet to the water line at the entrance to each turkey house, 100% of the samples were of unacceptable quality in terms of faecal coliforms, Escherichia coli, faecal streptococci, sulphitereducing anaerobes and enterococci...
December 2016: Revue Scientifique et Technique
https://www.readbyqxmd.com/read/28319476/anesthesia-in-patients-with-infectious-disease-caused-by-multi-drug-resistant-bacteria
#6
Sharon Einav, Yonit Wiener-Well
PURPOSE OF REVIEW: Up to 50% of specific bacterial strains in healthcare admission facilities are multidrug-resistant organisms (MDROs). Involvement of anesthesiologists in management of patients carrying/at risk of carrying MDROs may decrease transmission in the Operating Room (OR). RECENT FINDINGS: Anesthesiologists, their work area and tools have all been implicated in MDRO outbreaks. Causes include contamination of external ventilation circuits and noncontribution of filters to prevention, inappropriate decontamination procedures for nondisposable equipment (e...
March 17, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28315466/innovative-approach-for-identifying-root-causes-of-glass-defects-in-sterile-drug-product-manufacturing
#7
Lukas Eberle, Alexander Svensson, Andreas Graser, Joerg Luemkemann, Hirokazu Sugiyama, Rainer Schmidt, Konrad Hungerbuehler
In sterile drug product manufacturing, scratched and broken glass containers (i.e., vials) cause product losses, glass particles, equipment contamination and additional cleaning efforts. However, mechanical resistance and exposure of vials to mechanical stress are not sufficiently understood, and no systematic approach for reducing glass-related losses is established. Manufacturers may tackle glass-related losses more rationally if (i) frequencies for inflicting disqualifying damages to drug product containers are known for given forces, (ii) actual exposure in industrial filling lines is quantified and (iii) process enhancements are derived based on collected information...
March 14, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28298906/the-biodiversity-of-the-microbiota-producing-heat-resistant-enzymes-responsible-for-spoilage-in-processed-bovine-milk-and-dairy-products
#8
REVIEW
Solimar G Machado, François Baglinière, Sophie Marchand, Els Van Coillie, Maria C D Vanetti, Jan De Block, Marc Heyndrickx
Raw bovine milk is highly nutritious as well as pH-neutral, providing the ideal conditions for microbial growth. The microbiota of raw milk is diverse and originates from several sources of contamination including the external udder surface, milking equipment, air, water, feed, grass, feces, and soil. Many bacterial and fungal species can be found in raw milk. The autochthonous microbiota of raw milk immediately after milking generally comprises lactic acid bacteria such as Lactococcus, Lactobacillus, Streptococcus, and Leuconostoc species, which are technologically important for the dairy industry, although they do occasionally cause spoilage of dairy products...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28288198/risk-for-molecular-contamination-of-tissue-samples-evaluated-for-targeted-anti-cancer-therapy
#9
Eyal Asor, Michael Y Stav, Einav Simon, Ibrahim Fahoum, Edmond Sabo, Ofer Ben-Izhak, Dov Hershkovitz
With the increasing usage of sensitive PCR technology for pharmacogenetics, cross contamination becomes a significant concern. Researchers employed techniques which basically include replacing laboratory equipment after each sample preparation; however, there are no recommended guidelines. In the present work we wanted to evaluate the risk of cross contamination during tissue processing using the routine precaution measures. Twenty-one surgical samples of lung adenocarcinoma were used, of which 7 contained EGFR exon 19 mutation, 7 contained EGFR exon 21 mutation (p...
2017: PloS One
https://www.readbyqxmd.com/read/28282862/an-assessment-of-iterative-reconstruction-methods-for-sparse-ultrasound-imaging
#10
Solivan A Valente, Marcelo V W Zibetti, Daniel R Pipa, Joaquim M Maia, Fabio K Schneider
Ultrasonic image reconstruction using inverse problems has recently appeared as an alternative to enhance ultrasound imaging over beamforming methods. This approach depends on the accuracy of the acquisition model used to represent transducers, reflectivity, and medium physics. Iterative methods, well known in general sparse signal reconstruction, are also suited for imaging. In this paper, a discrete acquisition model is assessed by solving a linear system of equations by an ℓ 1 -regularized least-squares minimization, where the solution sparsity may be adjusted as desired...
March 8, 2017: Sensors
https://www.readbyqxmd.com/read/28278063/assessment-of-personal-airborne-exposures-and-surface-contamination-from-x-ray-vaporization-of-beryllium-targets-at-the-national-ignition-facility
#11
Samuel Y Paik, Patrick M Epperson, Kenneth M Kasper
This study presents air and surface sampling data collected over the first two years since beryllium was introduced as a target material at the National Ignition Facility. Over this time, 101 experiments with beryllium-containing targets were executed. The data provides an assessment of current conditions in the facility and a baseline for future impacts as new, reduced regulatory limits for beryllium are being proposed by both the Occupational Safety and Health Administration and Department of Energy. This study also investigates how beryllium deposits onto exposed surfaces as a result of x-ray vaporization and the effectiveness of simple decontamination measures in reducing the amount of removable beryllium from a surface...
February 28, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28274882/vacuum-sealing-drainage-as-a-pre-surgical-adjunct-in-the-treatment-of-complex-open-hand-injuries-report-of-17-cases
#12
Xiao-Feng Niu, Jian-Hua Yi, Guo-Qin Zha, Jun Hu, Yun-Jiang Liu, Liang-Bao Xiao
BACKGROUND: Few studies have been conducted to explore the use of the vacuum sealing drainage (VSD) technique in complex hand injuries. The aim of this study was to report outcomes in patients with complex hand injuries receiving VSD as a coadjuvant treatment prior to second-stage surgery. METHODS: This case series study retrospectively reviewed the patients who underwent VSD for treatment of hand injuries. Inclusion criteria for the study were: (1) traumatic soft tissue defects of the hand and wrist, accompanied by different degrees of injury and exposure of bone, tendon, or blood vessel; (2) the wound surface of hand and wrist was seriously contaminated and direct wound closure was not possible; and (3) the soft tissues of hand and wrist were seriously lacerated or avulsed, and showed necrosis or acute infection...
March 5, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28274418/potentiometric-perchlorate-determination-at-nanomolar-concentrations-in-vegetables
#13
Dilmo M S Leoterio, Ana Paula S Paim, Mônica F Belian, André Galembeck, André F Lavorante, Edgar Pinto, Célia G Amorim, Alberto N Araújo, Maria C B S M Montenegro
In this work, an expeditious method based on the multi-commutated flow-analysis concept with potentiometric detection is proposed to perform determinations of the emergent contaminant perchlorate in vegetable matrices down to nanomolar concentration. To accomplish the task, a tubular shaped potentiometric sensor selective to perchlorate ion was constructed with a PVC membrane containing 12mmol/kg of the polyamine bisnaphthalimidopropyl-4,4'-diaminodiphenylmethane and 2-nitrophenyl phenyl ether 68% (w/w) as plasticizer casted on a conductive epoxy resin...
July 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28271928/microbial-load-of-fresh-produce-and-paired-equipment-surfaces-in-packing-facilities-near-the-u-s-and-mexico-border
#14
Kira L Newman, Faith E Bartz, Lynette Johnston, Christine L Moe, Lee-Ann Jaykus, Juan S Leon
Several produce-associated outbreaks have been linked to the packing facility. Equipment surfaces may be an important source of contamination. The goal was to assess whether the microbial load of packing facility surfaces is associated with the microbial load of produce. From November 2000 to December 2003, 487 matched produce (14 types) and equipment surfaces (six production steps) were sampled from eight packing facilities in the United States near the border with Mexico and enumerated for aerobic plate counts (APC), Escherichia coli , Enterococcus, and coliforms...
March 8, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28271891/highly-sensitive-and-selective-uranium-detection-in-natural-water-systems-using-a-luminescent-mesoporous-metal-organic-framework-equipped-with-abundant-lewis-basic-sites-a-combined-batch-x-ray-absorption-spectroscopy-and-first-principles-simulation-investigation
#15
Wei Liu, Xing Dai, Zhuanling Bai, Yanlong Wang, Zaixing Yang, Linjuan Zhang, Lin Xu, Lanhua Chen, Yuxiang Li, Daxiang Gui, Juan Diwu, Jianqiang Wang, Ruhong Zhou, Zhifang Chai, Shuao Wang
Uranium is not only a strategic resource for the nuclear industry but also a global contaminant with high toxicity. Although several strategies have been established for detecting uranyl ions in water, searching for new uranium sensor material with great sensitivity, selectivity, and stability remains a challenge. We introduce here a hydrolytically stable mesoporous terbium(III)-based MOF material compound 1, whose channels are as large as 27 Å × 23 Å and are equipped with abundant exposed Lewis basic sites, the luminescence intensity of which can be efficiently and selectively quenched by uranyl ions...
March 17, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28262996/relationships-between-body-temperatures-and-inflammation-indicators-under-physiological-and-pathophysiological-conditions-in-pigs-exposed-to-systemic-lipopolysaccharide-and-dietary-deoxynivalenol
#16
T Tesch, E Bannert, J Kluess, J Frahm, L Hüther, S Kersten, G Breves, L Renner, S Kahlert, H-J Rothkötter, S Dänicke
We studied the constancy of the relationship between rectal and intraabdominal temperature as well as their linkage to inflammatory markers (leucocyte counts, kynurenine-to-tryptophan ratio (Kyn-Trp ratio), tumour necrosis factor alpha (TNF-α) in healthy and in pigs exposed to lipopolysaccharide (LPS) and/or deoxynivalenol (DON). Barrows (n = 44) were fed 4 weeks either a DON-contaminated (4.59 mg DON/kg feed) or a control (CON) diet and equipped with an intraabdominal temperature logger and a multicatheter system (V...
March 6, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28259604/bacterial-contamination-of-ct-equipment-use-of-atp-detection-and-culture-results-to-target-quality-improvement
#17
John Childress, Debborah Burch, Cheryl Kucharski, Carol Young, Ella A Kazerooni, Matthew S Davenport
RATIONALE AND OBJECTIVE: This study aimed to evaluate the use of an adenosine triphosphate (ATP) monitoring system to minimize surface contamination on inpatient computed tomography (CT) scanners. METHODS: The bore, table, and wrap of two quaternary care inpatient CT scanners (load/scanner: ~ 30-40 CT examinations/day) were assayed with bacterial cultures and an ATP detection system during six prospective iterative plan-do-check-act improvement cycles from January 6, 2016 to October 12, 2016...
March 1, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28251537/agricultural-effluent-treatment-in-biobed-systems-using-novel-substrates-from-southeastern-mexico-the-relationship-with-physicochemical-parameters-of-biomixtures
#18
Virgilio René Góngora-Echeverría, Fabrice Martin-Laurent, Carlos Quintal-Franco, German Giácoman-Vallejos, Carmen Ponce-Caballero
Misuse of pesticides in farming activities leads to contamination of drinking water sources and is responsible for animal and human health problems. The biobeds are practicable option to minimize contamination by pesticides during preparation, use and washing of equipment for pesticide treatments. This research aimed at testing substrate mixtures to optimize biobed efficiency to remove pesticides under the climate of the Yucatan (México). Agricultural soil and 11 mixtures adding vegetable compost, sisal pulp, corn stover and seaweed were tested under controlled conditions...
March 1, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28244999/exposure-to-airborne-fungi-during-sorting-of-recyclable-plastics-in-waste-treatment-facilities
#19
Kristýna Černá, Zdeňka Wittlingerová, Magdaléna Zimová, Zdeněk Janovský
BACKGROUND: In working environment of waste treatment facilities, employees are exposed to high concentrations of airborne microorganisms. Fungi constitute an essential part of them. This study aims at evaluating the diurnal variation in concentrations and species composition of the fungal contamination in 2 plastic waste sorting facilities in different seasons. MATERIAL AND METHODS: Air samples from the 2 sorting facilities were collected through the membrane filters method on 4 different types of cultivation media...
February 28, 2017: Medycyna Pracy
https://www.readbyqxmd.com/read/28238809/in-situ-protein-determination-to-monitor-contamination-in-a-centrifugal-partition-chromatograph
#20
Feriel Bouiche, Karine Faure
Centrifugal partition chromatography (CPC) works with biphasic liquid systems including aqueous two-phase systems. Metallic rotors are able to retain an aqueous stationary phase able to purify proteins. But the adhesion of proteins to solid surface may pose a cross-contamination risk during downstream processes. So it is of utmost importance to ensure the cleanliness of the equipment and detect possible protein contamination in a timely manner. Thereby, a direct method that allows the determination of the effective presence of proteins and the extent of contamination in the metallic CPC rotors was developed...
February 24, 2017: Analytical Biochemistry
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