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https://www.readbyqxmd.com/read/28329350/multicenter-evaluation-of-ceftolozane-tazobactam-for-serious-infections-caused-by-carbapenem-resistant-pseudomonas-aeruginosa
#1
Jose M Munita, Samuel L Aitken, William R Miller, Federico Perez, Rossana Rosa, Luis A Shimose, Paola N Lichtenberger, Lilian M Abbo, Rupali Jain, Masayuki Nigo, Audrey Wanger, Rafael Araos, Truc T Tran, Javier Adachi, Robert Rakita, Samuel Shelburne, Robert A Bonomo, Cesar A Arias
A multicenter, retrospective study of patients infected with carbapenem-resistant Pseudomonas aeruginosa who were treated with ceftolozane/tazobactam was performed. Among 35 patients, pneumonia was the most common indication and treatment was successful in 26 (74%). Treatment failure was observed in all cases where isolates demonstrated ceftolozane-tazobactam minimum inhibitory concentrations ≥8 μg/mL.
March 14, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28329303/high-burden-of-antimicrobial-resistance-and-mortality-among-adults-and-children-with-community-onset-bacterial-infections-in-india
#2
Vidya Mave, Ajay Chandanwale, Anju Kagal, Sandhya Khadse, Dileep Kadam, Renu Bharadwaj, Vaishali Dohe, Matthew Robinson, Aarti Kinikar, Samir Joshi, Priyanka Raichur, Katie McIntire, Savita Kanade, Jonathan Sachs, Chhaya Valvi, Usha Balasubramanian, Vandana Kulkarni, Aaron M Milstone, Ivan Marbaniang, Jonathan Zenilman, Amita Gupta
Background.: In India, antimicrobial consumption is high, yet systematically collected data on the epidemiology, risk factors and outcomes of antimicrobial resistant (AMR) infections are limited. Methods.: A prospective study of adults and children hospitalized for acute febrile illness (AFI) was conducted between August 2013 and December 2015. In-hospital outcomes were recorded, and logistic regression was performed to identify independent predictors of AMR community-onset infections...
March 3, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28327817/identification-of-s%C3%A3-o-paulo-metallo-beta-lactamase-1-producing-pseudomonas-aeruginosa-in-the-central-west-region-of-brazil-a-case-study
#3
Wirlaine Glauce Maciel, Kesia Esther da Silva, José Victor Bortolotto Bampi, Graciela Mendonça Dos Santos Bet, Ana Carolina Ramos, Ana Cristina Gales, Simone Simionatto
Metallo-beta-lactamase production is an important mechanism for carbapenem resistance of Pseudomonas aeruginosa , which represents an emerging public health challenge. We report the case of a patient admitted to an intensive care unit, with sepsis caused by multidrug-resistant São Paulo Metallo-beta-lactamase-1-producing P. aeruginosa . This is the first case of infection by this pathogenic strain in the State of Mato Grosso do Sul, Brazil. Thus, infection control measures are required for preventing future spread and outbreaks...
January 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/28326811/combinations-of-avibactam-and-carbapenems-exhibit-enhanced-potencies-against-drug-resistant-mycobacterium-abscessus
#4
Amit Kaushik, Chhavi Gupta, Stefanie Fisher, Elizabeth Story-Roller, Christos Galanis, Nicole Parrish, Gyanu Lamichhane
AIM: The objective of this study was to assess if avibactam, a new β-lactamase inhibitor, can restore the potency of carbapenems, a sub-class of β-lactams, against Mycobacterium abscessus clinical isolates. MATERIALS & METHODS: Twenty-eight M. abscessus clinical isolates that are resistant to multiple drugs currently used to treat its infection were included. MIC of carbapenems alone and in combination with avibactam against these strains were determined. RESULTS: Tebipenem, an oral carbapenem, and ertapenem and panipenem exhibited the greatest shift in MIC when supplemented with avibactam...
February 16, 2017: Future Microbiology
https://www.readbyqxmd.com/read/28325540/corrigendum-to-rates-of-susceptibility-of-carbapenems-ceftobiprole-and-colistin-against-clinically-important-bacteria-collected-from-intensive-care-units-in-2007-results-from-the-surveillance-of-multicenter-antimicrobial-resistance-in-taiwan-smart-j-microbiol
#5
Shio-Shin Jean, Wen-Sen Lee, Kwok-Woon Yu, Chun-Hsing Liao, Chin-Wan Hsu, Feng-Yi Chang, Wen-Chien Ko, Ray-Jade Chen, Jiunn-Jong Wu, Yen-Hsu Chen, Yao-Shen Chen, Jien-Wei Liu, Min-Chi Lu, Carlos Lam, Cheng-Yi Liu, Po-Ren Hsueh
No abstract text is available yet for this article.
March 16, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28324783/recent-updates-of-carbapenem-antibiotics
#6
REVIEW
Mohammed I El-Gamal, Imen Brahim, Noorhan Hisham, Rand Aladdin, Haneen Mohammed, Amany Bahaaeldin
Carbapenems are among the most commonly used and the most efficient antibiotics since they are relatively resistant to hydrolysis by most β-lactamases, they target penicillin-binding proteins, and generally have broad-spectrum antibacterial effect. In this review, we described the initial discovery and development of carbapenems, chemical characteristics, in vitro/in vivo activities, resistance studies, and clinical investigations for traditional carbapenem antibiotics in the market; imipenem-cilastatin, meropenem, ertapenem, doripenem, biapenem, panipenem/betamipron in addition to newer carbapenems such as razupenem, tebipenem, tomopenem, and sanfetrinem...
March 16, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28323228/protective-effect-of-berberis-aristata-against-peritonitis-induced-by-carbapenem-resistant-escherichia-coli-in-a-mammalian-model
#7
Pallavi Thakur, Raman Chawla, Alka Narula, Rakesh Kumar Sharma
OBJECTIVES: Berberis aristata is known to contain a variety of phenolic compounds contributing to its holistic capability of mitigating bacterial multidrug resistance. METHODS: Berberis aristata stem bark extract was prepared and was characterised using liquid chromatography-mass spectrometry (LC-MS). The antimicrobial efficacy of the extract against carbapenem-resistant Escherichia coli was assessed in vivo in an animal model using Sprague Dawley rats. Microbial counts in blood and urine, physical health status, haematological and biochemical analysis of blood, and histopathology of the kidney were assessed as the study endpoints...
March 17, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28320724/piperacillin-tazobactam-versus-other-antibacterial-agents-for-treatment-of-bloodstream-infections-due-to-ampc-beta-lactamase-producing-enterobacteriaceae
#8
Lucy Cheng, Brian C Nelson, Monica Mehta, Nikhil Seval, Sarah Park, Marla J Giddins, Qiuhu Shi, Susan Whittier, Angela Gomez-Simmonds, Anne-Catrin Uhlemann
In vivo induction of AmpC beta-lactamases produces high-level resistance to many beta-lactam antibiotics in Enterobacteriaceae, often resulting in the use of carbapenems or cefepime (FEP). The clinical effectiveness of piperacillin-tazobactam (TZP), a weak inducer of AmpC beta-lactamases, is poorly understood. Here we conducted a case-control study of adult inpatients with bloodstream infections (BSIs) due to Enterobacter, Serratia, or Citrobacter spp. from 2009 to 2015 to assess outcomes following treatment with TZP compared to FEP or meropenem (MEM)...
March 20, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28320716/in-vitro-activity-of-imipenem-relebactam-against-gram-negative-eskape-pathogens-isolated-by-clinical-laboratories-in-the-united-states-in-2015-results-from-the-smart-global-surveillance-program
#9
Sibylle H Lob, Meredith A Hackel, Krystyna M Kazmierczak, Katherine Young, Mary R Motyl, James A Karlowsky, Daniel F Sahm
Relebactam (formerly MK-7655) is an inhibitor of class A and C β-lactamases, including Klebsiella pneumoniae carbapenemase (KPC), and is currently in clinical development in combination with imipenem/cilastatin. Using Clinical and Laboratory Standards Institute (CLSI) defined broth microdilution methodology, we evaluated the in vitro activities of imipenem-relebactam, imipenem, and seven routinely tested parenteral antimicrobial agents against gram-negative ESKAPE pathogens (Pseudomonas aeruginosa, n = 845; Klebsiella pneumoniae, n = 689; Enterobacter spp...
March 20, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28315452/comparing-the-therapeutic-efficacies-of-third-generation-cephalosporins-and-broader-spectrum-%C3%AE-lactams-as-appropriate-empirical-therapy-in-adults-with-community-onset-monomicrobial-enterobacteriaceae-bacteraemia-a-propensity-score-matched-analysis
#10
Chung-Hsun Lee, Chih-Chia Hsieh, Ming-Yuan Hong, Yuan-Pin Hung, Wen-Chien Ko, Ching-Chi Lee
In this study, the therapeutic efficacy of third-generation cephalosporins (3GCs) was compared with that of broader-spectrum β-lactams (BSBLs) [fourth-generation cephalosporins (4GCs) and carbapenems] as empirical therapy in adults with community-onset monomicrobial Enterobacteriaceae bacteraemia. Compared with those in the 3GC group (n = 477), a significantly higher proportion of patients in the BSBL group (n = 141) had initial presentation with severe sepsis or septic shock, critical illness (Pitt bacteraemia score ≥4) at bacteraemia onset and fatal co-morbidities (McCabe classification)...
March 14, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28314920/-new-antibiotics-standstill-or-progress
#11
J Rademacher, T Welte
The development of resistance to antibiotics has been ignored for a long time. But nowadays, increasing resistance is an important topic. For a decade no new antibiotics had been developed and it is not possible to quickly close this gap of new resistance and no new drugs. This work presents six new antibiotics (ceftaroline, ceftobiprole, solithromycin, tedizolid, ceftolozane/tazobactam, ceftazidime/avibactam). In part, only expert opinions are given due to lack of study results.The two 5th generation cephalosporins ceftaroline and ceftobiprole have beside their equivalent efficacy to ceftriaxone (ceftaroline) and cefipim (ceftobiprole) high activity against MRSA...
March 17, 2017: Medizinische Klinik, Intensivmedizin und Notfallmedizin
https://www.readbyqxmd.com/read/28306563/antimicrobial-resistant-gram-negative-infections-in-neonates-burden-of-disease-and-challenges-in-treatment
#12
Laura Folgori, Julia Bielicki, Paul T Heath, Mike Sharland
PURPOSE OF REVIEW: This review summarizes the main challenges of antimicrobial resistance (AMR) in the neonatal population with a special focus on multidrug-resistant (MDR) Gram-negative pathogens. RECENT FINDINGS: MDR-Gram-negative bacteria are a great concern in the neonatal population, with a worldwide rise in the reported incidence and with very limited therapeutic options. Extended-spectrum β-lactamase and carbapenem-resistant Enterobacteriaceae (CRE) have been reported as responsible for neonatal ICU outbreaks...
March 16, 2017: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/28303847/trends-in-drug-resistance-of-acinetobacter-baumannii-over-a-10-year-period-nationwide-data-from-the-china-surveillance-of-antimicrobial-resistance-program
#13
Lei Gao, Yuan Lyu, Yun Li
BACKGROUND: Acinetobacter baumannii has emerged as an important pathogen causing a variety of infections. Using data from the China Surveillance of Antimicrobial Resistance Program conducted biennially, we investigated the secular changes in the resistance of 2917 isolates of A. baumannii from 2004 to 2014 to differ antimicrobial agents. METHODS: Pathogen samples were collected from 17 to 20 hospitals located in the eastern, central, and western regions of China...
March 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28303836/carbapenem-nonsusceptibility-with-modified-oprd-in-clinical-isolates-of-pseudomonas-aeruginosa-from-india
#14
Debarati Choudhury, Anupam Das Talukdar, Manabendra Dutta Choudhury, Anand Prakash Maurya, Debadatta Dhar Chanda, Atanu Chakravorty, Amitabha Bhattacharjee
This study was undertaken to investigate OprD porin-mediated carbapenem nonsusceptibility in clinical isolates of Pseudomonas aeruginosa from a tertiary referral hospital of Northeast India. A total of 267 nonduplicate, consecutive clinical isolates of P. aeruginosa were obtained. Mutation and expression levels of OprD gene were determined in carbapenem-nonsusceptible carbapenemase-nonproducing isolates. Among 19 carbapenem-nonsusceptible carbapenemase-nonproducing isolates, 11 of them demonstrated variable band pattern while performing denaturing gradient gel electrophoresis with amplified products of OprD gene...
January 2017: Indian Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28303831/strengths-and-limitations-of-various-screening-methods-for-carbapenem-resistant-enterobacteriaceae-including-new-method-recommended-by-clinical-and-laboratory-standards-institute-2017-a-tertiary-care-experience
#15
Agila Kumari Pragasam, Balaji Veeraraghavan, Yamuna Devi Bakthavatchalam, Radha Gopi, Raziya Fathima Aslam
Carbapenemase-mediated carbapenem resistance is a major concern across the world. Rapid detection of carbapenemase-producing organisms is of great importance in clinical settings. However, it is essential to have a test with good sensitivity and specificity. The aim of the study was to compare the performance of RAPIDEC® CARBA NP and modified carbapenem inactivation method (mCIM) recommended by Clinical and Laboratory Standards Institute guideline 2017. A total of ninety carbapenem resistant Escherichia coli and Klebsiella pneumoniae have been tested...
January 2017: Indian Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28303449/novel-beta-lactamase-inhibitors-unlocking-their-potential-in-therapy
#16
Darren Wong, David van Duin
Carbapenem-resistant Enterobacteriaceae are amongst the most feared pathogens due to severely limited treatment options. In response to this threat, three novel β-lactamase inhibitors have been developed in an attempt to reinvigorate and sustain our current antimicrobial therapies. Avibactam, vaborbactam, and relebactam are inhibitor agents with high affinity to Ambler class A and C β-lactamases and favorable outcomes in current clinical trials. However, although they do possess key similarities, these agents have unique differences which may have important clinical implications...
March 16, 2017: Drugs
https://www.readbyqxmd.com/read/28303191/vim-1-carbapenemase-producing-escherichia-coli-in-gulls-from-southern-france
#17
Marion Vittecoq, Chrislène Laurens, Lionel Brazier, Patrick Durand, Eric Elguero, Audrey Arnal, Frédéric Thomas, Salim Aberkane, Nicolas Renaud, Franck Prugnolle, Jérôme Solassol, Hélène Jean-Pierre, Sylvain Godreuil, François Renaud
Acquired carbapenemases currently pose one of the most worrying public health threats related to antimicrobial resistance. A NDM-1-producing Salmonella Corvallis was reported in 2013 in a wild raptor. Further research was needed to understand the role of wild birds in the transmission of bacteria resistant to carbapenems. Our aim was to investigate the presence of carbapenem-resistant Escherichia coli in gulls from southern France. In 2012, we collected 158 cloacal swabs samples from two gull species: yellow-legged gulls (Larus michahellis) that live in close contact with humans and slender-billed gulls (Chroicocephalus genei) that feed at sea...
February 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28303057/retrospective-survey-and-evaluation-of-first-line-antibiotics-for-chemotherapy-induced-febrile-neutropenia-in-patients-with-acute-myeloid-leukemia
#18
Naoki Mukoyama, Marie Nakashima, Koichi Miyamura, Akira Yoshimi, Yukihiro Noda, Kazuhiro Mori
Patients with acute leukemia are susceptible to chemotherapy-induced severe myelosuppression, and therefore are at a high risk for febrile neutropenia (FN). In such cases, the use of broad-spectrum antibiotics such as fourth-generation cephalosporins and carbapenems is recommended as first-line antimicrobial treatment; however, the effectiveness of these agents in patients with acute myeloid leukemia (AML) has not been investigated in detail. We retrospectively examined and evaluated the effectiveness of first-line antibiotic treatment regimens for chemotherapy-induced FN in patients with AML in Japanese Red Cross Nagoya Daiichi Hospital...
February 2017: Nagoya Journal of Medical Science
https://www.readbyqxmd.com/read/28302376/emerging-trends-in-antibiotic-resistance-implications-for-emergency-medicine
#19
Ali Pourmand, Maryann Mazer-Amirshahi, Gregory Jasani, Larissa May
BACKGROUND: Many bacteria are demonstrating increasing levels of resistance to commonly used antibiotics. While this has implications for the healthcare system as a whole, many patients infected with these resistant organisms will initially present to the emergency department (ED). The purpose of this review is to provide a summary of current trends in infections caused by the most clinically relevant resistant organisms encountered in emergency medicine. METHODS: Bacteria were selected based on the Centers for Disease Control and Prevention's National Action Plan for Combating Antibiotic Resistant Bacteria, and PubMed database...
March 7, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28302074/clonality-outer-membrane-proteins-profile-and-efflux-pump-in-kpc-producing-enterobacter-sp-in-brazil
#20
Juliana Ferraz Rosa, Camila Rizek, Ana Paula Marchi, Thais Guimaraes, Lourdes Miranda, Claudia Carrilho, Anna S Levin, Silvia F Costa
BACKGROUND: Carbapenems resistance in Enterobacter spp. has increased in the last decade, few studies, however, described the mechanisms of resistance in this bacterium. This study evaluated clonality and mechanisms of carbapenems resistance in clinical isolates of Enterobacter spp. identified in three hospitals in Brazil (Hospital A, B and C) over 7-year. METHODS: Antibiotics sensitivity, pulsed-field gel electrophoresis (PFGE), PCR for carbapenemase and efflux pump genes were performed for all carbapenems-resistant isolates...
March 17, 2017: BMC Microbiology
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