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Microbiology automation

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https://www.readbyqxmd.com/read/29769151/real-time-automated-detection-of-ventilator-associated-events-avoiding-missed-detections-misclassifications-and-false-detections-due-to-human-error
#1
Erica S Shenoy, Eric S Rosenthal, Yu-Ping Shao, Siddharth Biswal, Manohar Ghanta, Erin E Ryan, Dolores Suslak, Nancy Swanson, Valdery Moura Junior, David C Hooper, M Brandon Westover
OBJECTIVETo validate a system to detect ventilator associated events (VAEs) autonomously and in real time.DESIGNRetrospective review of ventilated patients using a secure informatics platform to identify VAEs (ie, automated surveillance) compared to surveillance by infection control (IC) staff (ie, manual surveillance), including development and validation cohorts.SETTINGThe Massachusetts General Hospital, a tertiary-care academic health center, during January-March 2015 (development cohort) and January-March 2016 (validation cohort)...
May 17, 2018: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/29765558/the-fallopian-tube-microbiome-implications-for-reproductive-health
#2
Elise S Pelzer, Dana Willner, Melissa Buttini, Louise M Hafner, Christina Theodoropoulos, Flavia Huygens
Objective: There is a paucity of data characterizing the microbiota of the female upper genital tract, which controversially is described as a sterile site. We examine whether the fallopian tube harbours an endogenous microbial community. Design: This prospective study collected from women undergoing total hysterectomy or salpingectomy-oophorectomy. Setting: Private hospital gynaecology department. Patients: Fallopian tubes were collected from women diagnosed with benign disease or for prophylaxis...
April 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/29738325/automated-low-flow-ascites-pump-in-a-real-world-setting-complications-and-outcomes
#3
Philipp Solbach, Christoph Höner Zu Siederdissen, Freya Wellhöner, Nicolas Richter, Benjamin Heidrich, Henrike Lenzen, Port Kerstin, Katja Hueper, Michael P Manns, Heiner Wedemeyer, Elmar Jaeckel
BACKGROUND AND AIMS: The aim of this study was to investigate the Alfapump, an automated low-flow pump system for the treatment of refractory ascites (RA) as an alternative for repeated large-volume paracentesis in patients with contraindication for placement of a transjugular intrahepatic portosystemic shunt (TIPS) or liver transplantation. MATERIALS AND METHODS: In 21 consecutive patients with RA and contraindication for a placement of a TIPS, the Alfapump was implanted at Hannover Medical School between December 2012 and May 2016...
May 7, 2018: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29687168/comparison-of-automated-and-conventional-microbiological-examination-of-donated-human-cardiac-tissue-in-heart-valve-banking
#4
Letícia Kraft, Felipe Francisco Tuon, Victoria Stadler Tasca Ribeiro, Luciana Cristina Wollmann, Paula Hansen Suss, Marcelo Pilonetto, Francisco Diniz Affonso da Costa
Most tissue banks use the conventional method; however, the automated method has advantages over the conventional method. The aim of this study was to compare the conventional and automated methods of culture in human cardiac tissue using an artificial contamination model. Myocardial samples were contaminated with sequential concentration (104 to 10-1  CFU/mL) with Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus and Candida albicans. Cultures were obtained from solution were the fragment was immersed and minced tissue, before and after the routine decellularization solution, with automated and conventional culture methods...
April 23, 2018: Cell and Tissue Banking
https://www.readbyqxmd.com/read/29685277/silage-review-using-molecular-approaches-to-define-the-microbial-ecology-of-silage
#5
REVIEW
T A McAllister, L Dunière, P Drouin, S Xu, Y Wang, K Munns, R Zaheer
Ensiling of forages was recognized as a microbial-driven process as early as the late 1800s, when it was associated with the production of "sweet" or "sour" silage. Classical microbiological plating techniques defined the epiphytic microbial populations associated with fresh forage, the pivotal role of lactic acid-producing bacteria in the ensiling process, and the contribution of clostridia, bacilli, yeast, and molds to the spoilage of silage. Many of these classical studies focused on the enumeration and characterization of a limited number of microbial species that could be readily isolated on selective media...
May 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29651616/significant-increase-in-cultivation-of-gardnerella-vaginalis-alloscardovia-omnicolens-actinotignum-schaalii-and-actinomyces-spp-in-urine-samples-with-total-laboratory-automation
#6
Sabrina Klein, Dennis Nurjadi, Susanne Horner, Klaus Heeg, Stefan Zimmermann, Irene Burckhardt
While total laboratory automation (TLA) is well established in laboratory medicine, only a few microbiological laboratories are using TLA systems. Especially in terms of speed and accuracy, working with TLA is expected to be superior to conventional microbiology. We compared in total 35,564 microbiological urine cultures with and without incubation and processing with BD Kiestra TLA for a 6-month period each retrospectively. Sixteen thousand three hundred thirty-eight urine samples were analyzed in the pre-TLA period and 19,226 with TLA...
April 13, 2018: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/29642831/-identification-of-anaerobic-gram-negative-bacilli-isolated-from-various-clinical-specimens-and-determination-of-antibiotic-resistance-profiles-with-e-test-methods
#7
Cengiz Demir, Recep Keşli
The aim of this study was to identify gram-negative anaerobic bacilli isolated from various clinical specimens that were obtained from patients with suspected anaerobic infections and to determine the antibiotic resistance profiles by using the antibiotic concentration gradient method. The study was performed in Afyon Kocatepe University Ahmet Necdet Sezer Research and Practice Hospital, Medical Microbiology Laboratory between 1 November 2014 and 30 October 2015. Two hundred and seventyeight clinical specimens accepted for anaerobic culture were enrolled in the study...
January 2018: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/29642825/-investigation-of-carbapenemase-genes-and-molecular-epidemiology-of-enterobacteriaceae-strains-isolated-between-2010-2014-in-a-university-hospitals
#8
Hüseyin Haydar Kutlu, Ebru Us, Alper Tekeli
The worldwide spread of carbapenemase producing Enterobacteriaceae isolates has become a major threat of public health. This worrisome situation leads the development of new methods for carbapenemase screening, detection, prevention of spread and epidemiological data collection as mandatory. In this study, it was aimed to investigate existence and distribution of carbapenemase-encoding genes (CEGs) among carbapenem-resistant Enterobacteriaceae isolated from various clinical samples in Ankara University Faculty of Medicine, Ibni Sina Hospital, Central Microbiology Laboratory between June 2010-May 2014 and detect their clonal relationship...
January 2018: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/29620789/infectious-meningitis-encephalitis-evaluation-of-a-rapid-and-fully-automated-multiplex-pcr-in-the-microbiological-diagnostic-workup
#9
Giulia Piccirilli, Angela Chiereghin, Liliana Gabrielli, Maddalena Giannella, Diego Squarzoni, Gabriele Turello, Silvia Felici, Caterina Vocale, Roberta Zuntini, Dino Gibertoni, Alberto Enrico Maraolo, Simone Ambretti, Tiziana Lazzarotto
Infectious diseases of the central nervous system (CNS) such as meningitis/encephalitis (ME) require rapid identification of causative pathogens for effective treatment. This study evaluated the analytical performance and clinical utility of a fully automated multiplex PCR test to improve the microbiological diagnostic workup of ME. Seventy-seven cerebrospinal fluid (CSF) samples from 77 patients with suspected ME were studied. The samples were tested by FilmArray™ (FA) ME Panel test and the results were compared with those obtained using conventional microbiological procedures (CMP)...
April 5, 2018: New Microbiologica
https://www.readbyqxmd.com/read/29581314/total-laboratory-automation-in-clinical-microbiology-a-micro-comic-strip
#10
EDITORIAL
Alexander J McAdam
No abstract text is available yet for this article.
April 2018: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29573441/contemporary-microbiology-and-identification-of-corynebacteria-spp-causing-infections-in-human
#11
REVIEW
Aleksandra Anna Zasada, Ewa Mosiej
The Corynebacterium genus are bacteria of growing clinical importance. It is because of progress in medicine that result in growing population of immunocompromised patients and growing number of infections caused by opportunistic pathogens. A new infections caused by Corynebacterium species regarded previously as commensal microorganisms as well as infections caused by new Corynebacterium species are described. Parallel with changes in Corynebacteria infections the microbiological laboratory diagnostic possibilities are changing...
March 24, 2018: Letters in Applied Microbiology
https://www.readbyqxmd.com/read/29569946/surface-enhanced-raman-scattering-sers-in-microbiology-illumination-and-enhancement-of-the-microbial-world
#12
Malama Chisanga, Howbeer Muhamadali, David I Ellis, Royston Goodacre
The microbial world forms a huge family of organisms that exhibit the greatest phylogenetic diversity on Earth and thus colonize virtually our entire planet. Due to this diversity and subsequent complex interactions, the vast majority of microorganisms are involved in innumerable natural bioprocesses and contribute an absolutely vital role toward the maintenance of life on Earth, whilst a small minority cause various infectious diseases. The ever-increasing demand for environmental monitoring, sustainable ecosystems, food security, and improved healthcare systems drives the continuous search for inexpensive but reproducible, automated and portable techniques for detection of microbial isolates and understanding their interactions for clinical, environmental, and industrial applications and benefits...
January 1, 2018: Applied Spectroscopy
https://www.readbyqxmd.com/read/29552530/molecular-characterization-and-antibiotic-susceptibility-pattern-of-acinetobacter-baumannii-isolated-in-intensive-care-unit-patients-in-al-hassa-kingdom-of-saudi-arabia
#13
Mohammed Sami Alhaddad, Afnan Khalifah AlBarjas, Lolowah Ebraheem Alhammar, Abdullatif Sami Al Rashed, Lorina Ineta Badger-Emeka
Background: Acinetobacter baumannii , is an emerging nosocomial multidrug resistance pathogen with the rapid spread of clones being reported in health-care settings and hospitals worldwide. Carbapenem resistance in this bacterium has been attributed to D OXA β-lactamases with OXA-51-like β-lactamase, being present in all A. baumannii isolate. The present study looks into the antibiotics susceptibility and molecular characterization of clinical A. baumannii isolates from Intensive Care Unit (ICU) samples in Al-Hofuf, South-eastern region of Saudi Arabia...
January 2018: International Journal of Applied and Basic Medical Research
https://www.readbyqxmd.com/read/29544984/secondary-caries-formation-with-a-two-species-biofilm-artificial-mouth
#14
Stefanie Amend, Roland Frankenberger, Susanne Lücker, Eugen Domann, Norbert Krämer
OBJECTIVES: The present study aimed to establish Lactobacillus casei in a completely automated Streptococcus mutans-based artificial mouth model and to investigate secondary caries inhibiting properties of glass ionomer cements / resin composite groups in vitro. METHODS: Sixty extracted, caries-free human third molars were used for preparation of standardized class-V-cavities. Specimens were restored with a resin-modified (Photac Fil; PF) as well as a conventional glass ionomer cement (Ketac Molar; KM) and one resin composite bonded with and without conduction of etch-and-rinse technique (Prime&Bond NT, Ceram X mono; C+ERT, C)...
May 2018: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/29541448/multidrug-resistant-gram-negative-bacterial-infections-in-a-teaching-hospital-in-ghana
#15
Nicholas Agyepong, Usha Govinden, Alex Owusu-Ofori, Sabiha Yusuf Essack
Background: Multidrug-resistant Gram-negative bacteria have emerged as major clinical and therapeutic dilemma in hospitals in Ghana.To describe the prevalence and profile of infections attributable to multidrug-resistant Gram-negative bacteria among patients at the Komfo Anokye Teaching Hospital in the Ashanti region of Ghana. Methods: Bacterial cultures were randomly selected from the microbiology laboratory from February to August, 2015. Bacterial identification and minimum inhibitory concentrations were conducted using standard microbiological techniques and the Vitek-2 automated system...
2018: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/29522576/rapid-and-easy-detection-of-low-level-resistance-to-vancomycin-in-methicillin-resistant-staphylococcus-aureus-by-matrix-assisted-laser-desorption-ionization-time-of-flight-mass-spectrometry
#16
Kota Asakura, Takuya Azechi, Hiroshi Sasano, Hidehito Matsui, Hideaki Hanaki, Motoyasu Miyazaki, Tohru Takata, Miwa Sekine, Tomoiku Takaku, Tomonori Ochiai, Norio Komatsu, Keigo Shibayama, Yuki Katayama, Koji Yahara
Vancomycin-intermediately resistant Staphylococcus aureus (VISA) and heterogeneous VISA (hVISA) are associated with treatment failure. hVISA contains only a subpopulation of cells with increased minimal inhibitory concentrations, and its detection is problematic because it is classified as vancomycin-susceptible by standard susceptibility testing and the gold-standard method for its detection is impractical in clinical microbiology laboratories. Recently, a research group developed a machine-learning classifier to distinguish VISA and hVISA from vancomycin-susceptible S...
2018: PloS One
https://www.readbyqxmd.com/read/29518106/multiplexed-chemostat-system-for-quantification-of-biodiversity-and-ecosystem-functioning-in-anaerobic-digestion
#17
Diane Plouchart, Kim Milferstedt, Guillaume Guizard, Eric Latrille, Jérôme Hamelin
Continuous cultures in chemostats have proven their value in microbiology, microbial ecology, systems biology and bioprocess engineering, among others. In these systems, microbial growth and ecosystem performance can be quantified under stable and defined environmental conditions. This is essential when linking microbial diversity to ecosystem function. Here, a new system to test this link in anaerobic, methanogenic microbial communities is introduced. Rigorously replicated experiments or a suitable experimental design typically require operating several chemostats in parallel...
2018: PloS One
https://www.readbyqxmd.com/read/29498670/microbiological-sensing-technologies-a-review
#18
REVIEW
Firouz Abbasian, Ebrahim Ghafar-Zadeh, Sebastian Magierowski
Microorganisms have a significant influence on human activities and health, and consequently, there is high demand to develop automated, sensitive, and rapid methods for their detection. These methods might be applicable for clinical, industrial, and environmental applications. Although different techniques have been suggested and employed for the detection of microorganisms, and the majority of these methods are not cost effective and suffer from low sensitivity and low specificity, especially in mixed samples...
March 2, 2018: Bioengineering
https://www.readbyqxmd.com/read/29479855/experimental-fusion-of-different-versions-of-the-total-laboratory-automation-system-and-improvement-of-laboratory-turnaround-time
#19
Hee-Jung Chung, Yoon Kyung Song, Sang-Hyun Hwang, Do Hoon Lee, Tetsuro Sugiura
BACKGROUND: Use of total laboratory automation (TLA) system has expanded to microbiology and hemostasis and upgraded to second and third generations. We herein report the first successful upgrades and fusion of different versions of the TLA system, thus improving laboratory turnaround time (TAT). METHODS: A 21-day schedule was planned from the time of pre-meeting to installation and clinical sample application. We analyzed the monthly TAT in each menu, distribution of the "out of range for acceptable TAT" samples, and "prolonged time out of acceptable TAT," before and after the upgrade and fusion...
February 25, 2018: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/29474660/performance-of-the-accelerate-pheno%C3%A2-system-for-identification-and-antimicrobial-susceptibility-testing-of-a-panel-of-multidrug-resistant-gram-negative-bacilli-directly-from-positive-blood-cultures
#20
Alix Pantel, Julien Monier, Jean-Philippe Lavigne
Objectives: To evaluate the performance of the Accelerate Pheno™ system for the identification and antimicrobial susceptibility testing (AST) of a panel of Gram-negative bacilli (GNB) with different resistance profiles (e.g. penicillinases, ESBLs, cephalosporinase overproduction, carbapenemases, impermeability) directly from positive blood cultures in <7 h. Methods: A panel of 105 clinical strains previously characterized for the presence of β-lactamase-encoding genes was tested...
February 20, 2018: Journal of Antimicrobial Chemotherapy
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