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https://www.readbyqxmd.com/read/28435019/epidemiology-and-trends-in-the-antibiotic-susceptibilities-of-gram-negative-bacilli-isolated-from-patients-with-intra-abdominal-infections-in-the-asia-pacific-region-2010-2013
#1
Ya-Ting Chang, Geoffrey Coombs, Thomas Ling, V Balaji, Camilla Rodrigues, Hiroshige Mikamo, Min-Ja Kim, Datin Ganeswrie Rajasekaram, Myrna Mendoza, Thean Yen Tan, Pattarachai Kiratisin, Yuxing Ni, Weinman Barry, Yingchun Xu, Yen-Hsu Chen, Po-Ren Hsueh
This study was conducted to investigate the epidemiology and antimicrobial susceptibility patterns of Gram-negative bacilli (GNB) isolated from intra-abdominal infections (IAIs) in the Asia-Pacific region (APR) from 2010-2013. A total of 17 350 isolates were collected from 54 centres in 13 countries in the APR. The three most commonly isolated GNB were Escherichia coli (46.1%), Klebsiella pneumoniae (19.3%) and Pseudomonas aeruginosa (9.8%). Overall, the rates of extended-spectrum β-lactamase (ESBL)-producing E...
April 20, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28407806/development-and-validation-of-classifiers-and-variable-subsets-for-predicting-nursing-home-admission
#2
Mikko Nuutinen, Riikka-Leena Leskelä, Ella Suojalehto, Anniina Tirronen, Vesa Komssi
BACKGROUND: In previous years a substantial number of studies have identified statistically important predictors of nursing home admission (NHA). However, as far as we know, the analyses have been done at the population-level. No prior research has analysed the prediction accuracy of a NHA model for individuals. METHODS: This study is an analysis of 3056 longer-term home care customers in the city of Tampere, Finland. Data were collected from the records of social and health service usage and RAI-HC (Resident Assessment Instrument - Home Care) assessment system during January 2011 and September 2015...
April 13, 2017: BMC Medical Informatics and Decision Making
https://www.readbyqxmd.com/read/28402500/evaluation-of-the-aid-carbapenemase-line-probe-assay-for-rapid-detection-and-identification-of-carbapenemase-genes-in-gram-negative-bacilli
#3
Guido V Bloemberg, Andrea Braun-Kiewnick, Jan Tedrup, Carla Meijerink, Elena Durer, Claudia Ritter, Peter M Keller, Michael Hombach
Objectives: This study evaluated the AID carbapenemase line probe assay (LPA) for the detection and identification of carbapenem resistance genes in Enterobacteriaceae and other Gram-negative bacilli (GNB) using bacterial cultures and DNA extracts directly from patient urine samples. Methods: The AID carbapenemase LPA detects 13 different carbapenemase genes. Test probe accuracy was verified for using clinical Enterobacteriaceae isolates harbouring bla KPC , bla VIM , bla NDM , bla GIM , bla AIM , bla SPM , bla IMP and bla OXA-48 and a well-characterized set of Escherichia coli DH5α strains transformed with the vector plasmid pUC57- kan harbouring bla BIC , bla SIM , bla DIM , bla IMI-3 , bla IMI-1 and bla NMC-A ...
April 11, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28396277/duodenoscope-reprocessing-surveillance-with-adenosine-triphosphate-testing-and-terminal-cultures-a-clinical-pilot-study
#4
Kavel Visrodia, Yuri Hanada, Kelly M Pennington, Pritish K Tosh, Mark D Topazian, Bret T Petersen
BACKGROUND & AIMS: Recent reports of infectious outbreaks linked to duodenoscopes have led to proposals for duodenoscope surveillance culturing, which has inherent limitations. We aimed to assess the feasibility of real-time adenosine triphosphate (ATP) testing after manual cleaning, and its ability to predict reprocessing adequacy, as determined by terminal duodenoscope cultures. METHODS: Clinically used duodenoscopes underwent reprocessing per current guidelines...
April 7, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28394975/-risk-factors-for-acute-kidney-injury-in-patients-treated-with-polymyxin-b-experience-from-139-cases-at-a-tertiary-university-hospital-in-colombia
#5
Johanna Osorio, Jackeline Barreto, Claudia F Samboni, Lina A Cándelo, Luis C Álvarez, Susana Benavidez, Roso P Téllez, Dagoberto Santofimio, Jorge A Ramos, Carlos A Gómez
BACKGROUND: The rise of infections caused by multidrug-resistant Gram negative bacilli (MDR-GNB), added to paucity of newer therapy, have led to increase polymyxin B use, despite adverse renal toxicity profile. AIM: To determine the incidence and risk factors associated to acute kidney injury (AKI) and polymyxin B use, in patients with infections caused by MDR-GNB. METHODS: A retrospective cohort, with a nested case-control study of adults who received polymyxin B for more than 48 hours at a tertiary university hospital in Colombia (2011-2015) was performed...
February 2017: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
https://www.readbyqxmd.com/read/28385464/microbiology-of-surgical-site-infections-in-patients-with-cancer-a-7-year-review
#6
Juan Carlos Hernaiz-Leonardo, Maria Fernanda Golzarri, Patricia Cornejo-Juárez, Patricia Volkow, Consuelo Velázquez, Mauricio Ostrosky-Frid, Diana Vilar-Compte
BACKGROUND: Health care-associated infections (HAIs) have arisen as major sources of multidrug-resistant bacteria. Surgical site infections (SSIs) are the most frequent HAIs in many countries, with high antimicrobial-resistant prevalence. METHODS: A 7-year retrospective review (2008-2014) of microbiologic data within a prospective surveillance program on patients with SSI at a cancer hospital in Mexico. RESULTS: There were 23,421 surgeries performed during the study period...
April 3, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28384858/antimicrobial-resistance-surveillance-among-intensive-care-units-of-a-tertiary-care-hospital-in-southern-india
#7
Kailash Moolchandani, Apurba Sankar Sastry, R Deepashree, Sujatha Sistla, B N Harish, Jharna Mandal
INTRODUCTION: Hospital Acquired Infections (HAIs) are the rising threat in the health care facilities across the globe. As most Intesive Care Unit (ICU) patients are frequently on broad spectrum antimicrobials, this induces selective antibiotic pressure which leads to development of Antimicrobial Resistance (AMR) among the microorganisms of ICUs. AIM: To study the occurrence of different types of HAIs in patients admitted to various ICUs of JIPMER and the AMR pattern of the bacterial pathogens isolated from them...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28383604/microbiological-contamination-in-digital-radiography-evaluation-at-the-radiology-clinic-of-an-educational-institution
#8
Cristiana P Malta, Naiana Nl Damasceno, Rosangela A Ribeiro, Carolina Sf Silva, Karina L Devito
The aim of this study was to evaluate the contamination rate of intra and extraoral digital X ray equipment in a dental radiology clinic at a public educational institution. Samples were collected on three different days, at two times in the day: in the morning, before attending patients, and at the end of the day, after appointment hours and before cleaning and disinfection procedures. Samples were collected from the periapical X-ray machine (tube head, positioning device, control panel and activator button), the panoramic X- ray machine (temporal support, bite block, control panel and activator button), the intraoral digital system (sensor), and the digital system computers (keyboard and mouse)...
December 2016: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/28375512/the-epidemiology-of-carbapenem-resistant-enterobacteriaceae-the-impact-and-evolution-of-a-global-menace
#9
Latania K Logan, Robert A Weinstein
Carbapenem-resistant Enterobacteriaceae (CRE) are a serious public health threat. Infections due to these organisms are associated with significant morbidity and mortality. Mechanisms of drug resistance in gram-negative bacteria (GNB) are numerous; β-lactamase genes carried on mobile genetic elements are a key mechanism for the rapid spread of antibiotic-resistant GNB worldwide. Transmissible carbapenem-resistance in Enterobacteriaceae has been recognized for the last 2 decades, but global dissemination of carbapenemase-producing Enterobacteriaceae (CPE) is a more recent problem that, once initiated, has been occurring at an alarming pace...
February 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28367020/comparison-of-four-phenotypic-methods-for-detection-of-metallo-%C3%AE-lactamase-producing-gram-negative-bacteria-in-rural-teaching-hospital
#10
Chinjal A Panchal, Sweta Sunil Oza, Sanjay J Mehta
CONTEXT: Metallo-β-lactamase (MBL)-producing bacteria lead to resistance to carbapenem an antibiotic that used as the last resort for treatment of multidrug-resistant bacteria, extended spectrum beta-lactamases, and AmpC β-lactamase-producing Gram-negative bacteria (GNB). The emergence of MBL-producing GNB is challenge to microbiology laboratories because there are no standardized guidelines available to detect them. The aim of this study was to compare four phenotypic methods to detect MBL production in GNB and to determine antibiotic sensitivity of MBL-producing isolates...
April 2017: Journal of Laboratory Physicians
https://www.readbyqxmd.com/read/28358803/efficacy-of-polymyxin-b-immobilized-fiber-hemoperfusion-for-patients-with-septic-shock-caused-by-gram-negative-bacillus-infection
#11
Nobuyuki Saito, Kazuhiro Sugiyama, Testu Ohnuma, Takashi Kanemura, Michitaka Nasu, Yuya Yoshidomi, Yuta Tsujimoto, Hiroshi Adachi, Hiroyuki Koami, Aito Tochiki, Kota Hori, Yukiko Wagatsuma, Hisashi Matsumoto
Septic shock-associated mortality in intensive care units (ICUs) remains high, with reported rates ranging 30-50%. In particular, Gram-negative bacilli (GNB), which induce significant inflammation and consequent multiple organ failure, are the etiological bacterial agent in 40% of severe sepsis cases. Hemoperfusion using polymyxin B-immobilized fiber (PMX), which adsorbs endotoxin, is expected to reduce the inflammatory sepsis cascade due to GNB. However, the clinical efficacy of this treatment has not yet been demonstrated...
2017: PloS One
https://www.readbyqxmd.com/read/28342707/clinical-characteristics-microbiology-and-outcomes-of-external-ventricular-drainage-associated-infections-the-importance-of-active-treatment
#12
Constantinos Tsioutis, Spyridon A Karageorgos, Soultana Stratakou, Stella Soundoulounaki, Dimitrios Karambetsos, George Kouyentakis, Achilleas Gikas
Data concerning clinical characteristics, microbiology, treatment and outcomes of external ventricular drainage-associated infections (EVDAI) are limited. All hospitalized patients with EVDAI in a University Hospital between January 2009 and December 2015 were retrospective recorded. Only the first episode per patient was included. An antibiotic was considered "active" when its pharmacokinetic properties were appropriate for EVDAI and the implicated microorganism was in vitro susceptible. During the 7-year study period, 36 EVDAI were identified...
March 22, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28329302/sensitization-of-gram-negative-bacilli-to-host-antibacterial-proteins
#13
Joanna Jammal, Fadia Zaknoon, Galoz Kaneti, Ayelet S Hershkovits, Amram Mor
Towards addressing the need for novel alternatives to antibiotics, we attempted to sensitize Gram-negative bacilli (GNB) to innate antibacterial protagonists. We report a lipopeptide-like sequence (C10OOc12O) that inflicted outer-membrane damages at low micromolar range, whereas measurable bacterial growth inhibition in broth medium required >10-fold higher concentrations. In serum however, C10OOc12O induced antibacterial activity in a manner suppressible by anti-complements antibodies or heat treatment, and acted synergistically with exogenous lysozyme in broth and serum media...
March 4, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28314101/dielectrophoresis-system-for-testing-antimicrobial-susceptibility-of-gram-negative-bacteria-to-%C3%AE-lactam-antibiotics
#14
I-Hsiu Su, Wen-Chien Ko, Chung-Hsin Shih, Fang-Hao Yeh, Yung-Nien Sun, Jung-Chih Chen, Po-Lin Chen, Hsien-Chang Chang
Gram-negative bacteria (GNBs) are common pathogens causing severe sepsis. Rapid evaluation of drug susceptibility would guide effective antibiotic treatment and promote life-saving. A total of 78 clinical isolates of 13 Gram-negative species collected between April 2013 and November 2013 from two medical centers in Tainan were tested. Bacterial morphology changes in different concentrations of antibiotics were observed under the electric field of a quadruple electrode array using light microscopy. The minimal inhibitory concentrations (MICs) of four antimicrobial agents, namely, cefazolin, ceftazidime, cefepime, and doripenem, were determined by the dielectrophoretic antimicrobial susceptibility testing (dAST) and by the conventional broth dilution testing (BDT)...
March 31, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28304018/graphene-nanobubbles-on-tio2-for-in-operando-electron-spectroscopy-of-liquid-phase-chemistry
#15
S Nappini, A Matruglio, D Naumenko, S Dal Zilio, F Bondino, M Lazzarino, E Magnano
X-Ray Photoelectron Spectroscopy (XPS) and X-Ray Absorption Spectroscopy (XAS) provide unique knowledge on the electronic structure and chemical properties of materials. Unfortunately this information is scarce when investigating solid/liquid interfaces and chemical or photochemical reactions under ambient conditions because of the short electron inelastic mean free path (IMFP) that requires a vacuum environment, which poses serious limitation on the application of XPS and XAS to samples present in the atmosphere or in the presence of a solvent...
March 17, 2017: Nanoscale
https://www.readbyqxmd.com/read/28285886/one-year-record-of-bioaerosols-and-particles-concentration-in-indo-gangetic-plain-implications-of-biomass-burning-emissions-to-high-level-of-endotoxin-exposure
#16
Prashant Rajput, Manzar Hussain Anjum, Tarun Gupta
Previous studies worldwide have suggested the potential role of bioaerosols as ice-nuclei and cloud-condensation nuclei. Furthermore, their participation in regulating the global carbon cycle urges systematic studies from different environmental conditions throughout the globe. Towards this through one-year study, conducted from June 2015-May 2016, we report on atmospheric abundance and variability of viable bioaerosols, organic carbon (OC) and particles number and deduced mass concentrations from Indo-Gangetic Plain (IGP; at Kanpur)...
March 9, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28268024/presence-distribution-and-molecular-epidemiology-of-multi-drug-resistant-gram-negative-bacilli-from-medical-personnel-of-intensive-care-units-in-tianjin-china-2007-2015
#17
H Liu, C N Fei, Y Zhang, G W Liu, J Liu, J Dong
BACKGROUND: Multi-drug-resistant Gram-negative bacteria (MDRGNB) have become an important cause of nosocomial infection in intensive care units (ICUs). AIMS: To investigate the molecular epidemiology of MDRGNB isolated from medical personnel (MP) and non-medical personnel (NMP) at 69 ICUs in Tianjin, China. METHODS: From April 2007 to October 2015, 2636 nasal and hand swab samples from 1185 MP and 133 NMP were cultured for GNB (including MDRGNB), meticillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant enterococci (VRE)...
January 28, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28254253/surveillance-culture-for-multidrug-resistant-gram-negative-bacteria-performance-in-liver-transplant-recipients
#18
Maristela Pinheiro Freire, Isabel Cristina Villela Soares Oshiro, Patrícia Rodrigues Bonazzi, Ligia Câmera Pierrotti, Larissa Marques de Oliveira, Anna Silva Machado, Inneke Marie Van Der Heijdenn, Flavia Rossi, Silvia Figueiredo Costa, Luiz Augusto Carneiro D'Albuquerque, Edson Abdala
BACKGROUND: The prevalence of infection with multidrug-resistant gram-negative bacteria (MDR-GNB) after solid-organ transplantation is increasing. Surveillance culture (SC) seems to be an important tool for MDR-GNB control. The goal of this study was to analyze the performance of SC for MDR-GNB among liver transplant (LT) recipients. METHODS: This was a prospective cohort study involving patients who underwent LT between November 2009 and November 2011. We screened patients for extended spectrum β-lactamase-producing Escherichia coli, extended spectrum β-lactamase-producing Klebsiella pneumoniae, and carbapenem-resistant Enterobacteriaceae, carbapenem-resistant Pseudomonas aeruginosa (CRPA), and carbapenem-resistant Acinetobacter baumannii (CRAB)...
March 1, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28249572/efficacy-and-safety-of-de-escalation-therapy-to-ertapenem-for-treatment-of-infections-caused-by-extended-spectrum-%C3%AE-lactamase-producing-enterobacteriaceae-an-open-label-randomized-controlled-trial
#19
Pinyo Rattanaumpawan, Peerawong Werarak, Anupop Jitmuang, Pattarachai Kiratisin, Visanu Thamlikitkul
BACKGROUND: Carbapenem antibiotics are considered the treatment of choice for serious extended-spectrum beta-lactamase (ESBL)-producing Gram-negative bacteria (GNB) infections. The study objectives were to evaluate efficacy and safety of de-escalation therapy to ertapenem for treatment of infections caused by extended-spectrum-β-lactamase-producing Enterobacteriaceae. METHODS: We conducted a randomized controlled trial of adult patients with documented ESBL-producing Enterobacteriaceae infections who had received any group 2 carbapenem for less than 96 h...
March 1, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28241746/factors-influencing-mortality-in-abdominal-solid-organ-transplant-recipients-with-multidrug-resistant-gram-negative-bacteremia
#20
Bingbing Qiao, Jianzhen Wu, Qiquan Wan, Sheng Zhang, Qifa Ye
BACKGROUND: Although multidrug-resistant (MDR) gram-negative bacteremia (GNB) has been recognized as an important cause of morbidity and mortality among abdominal solid organ transplant (ASOT) recipients, there are no data on its prognostic factors after an interim standard definition of MDR was proposed in 2012. The objective of this study was to describe the epidemiology, microbiology, and predictors of infection-related 30-day mortality in ASOT recipients with MDR GNB. METHODS: We performed a retrospective, double-center analysis of ASOT patients with MDR GNB over a 13-year study period...
February 27, 2017: BMC Infectious Diseases
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