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https://www.readbyqxmd.com/read/28333677/y-site-physical-compatibility-of-beta-blocker-infusions-with-intensive-care-unit-admixtures
#1
Jaime A Foushee, Pmichaele Meredith, Laura M Fox, EdwardE Grace
Parenteral beta-blocker therapy via continuous infusion has shown promising results for improved outcomes for patients with septic shock. As patients with septic shock may require multiple intravenous medications, compatibility is necessary to co-infuse these medications through a y-site connector. The purpose of this study was to examine the physical compatibility of select intravenous drugs used for patients with septic shock combined with various intravenous beta-blockers including esmolol, labetalol, and metoprolol through a simulated y-site infusion...
July 2016: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/28333347/polymyxin-resistant-carbapenem-resistant-acinetobacter-baumannii-is-eradicated-by-a-triple-combination-of-agents-that-lack-individual-activity
#2
Justin R Lenhard, Visanu Thamlikitkul, Fernanda P Silveira, Samira M Garonzik, Xun Tao, Alan Forrest, Beom Soo Shin, Keith S Kaye, Jürgen B Bulitta, Roger L Nation, Jian Li, Brian T Tsuji
Objectives: The emergence of polymyxin resistance threatens to leave clinicians with few options for combatting drug-resistant Acinetobacter baumannii . The objectives of the current investigation were to define the in vitro emergence of polymyxin resistance and identify a combination regimen capable of eradicating A. baumannii with no apparent drug susceptibilities. Methods: Two clonally related, paired, A. baumannii isolates collected from a critically ill patient who developed colistin resistance while receiving colistin methanesulfonate in a clinical population pharmacokinetic study were evaluated: an A...
February 28, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28333319/wck-4234-a-novel-diazabicyclooctane-potentiating-carbapenems-against-enterobacteriaceae-pseudomonas-and-acinetobacter-with-class-a-c-and-d-%C3%AE-lactamases
#3
Shazad Mushtaq, Anna Vickers, Neil Woodford, David M Livermore
Background: Several diazabicyclooctanes (DBOs) are under development as inhibitors of class A and C β-lactamases. Inhibition of OXA (class D) carbapenemases is variable, with those of Acinetobacter spp. remaining notably resistant. We describe a novel DBO, WCK 4234 (Wockhardt), with distinctive activity against OXA carbapenemases. Methods: MICs of imipenem and meropenem were determined by CLSI agar dilution with WCK 4234 added at 4 or 8 mg/L. Test organisms were clinical Enterobacteriaceae, Acinetobacter baumannii and Pseudomonas aeruginosa with carbapenemases or carbapenem resistance via porin loss plus AmpC or ESBL activity...
February 16, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28333283/rch51-a-multiply-antibiotic-resistant-acinetobacter-baumannii-st103ip-isolate-carries-resistance-genes-in-three-plasmids-including-a-novel-potentially-conjugative-plasmid-carrying-oxa235-in-transposon-tn6252
#4
Mohammad Hamidian, Steven J Nigro, Rebecca M Hartstein, Ruth M Hall
Objectives: To determine the identity and context of genes conferring antibiotic resistance in a sporadic multiply antibiotic-resistant Acinetobacter baumannii recovered at Royal Children's Hospital, Brisbane. Methods: The antibiotic resistance phenotype for 23 antibiotics was determined using disc diffusion or MIC determination. The whole-genome sequence of RCH51 was determined using the Illumina HiSeq platform. Antibiotic resistance determinants were identified using ResFinder...
March 13, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28333192/susceptibilities-of-mdr-mycobacterium-tuberculosis-isolates-to-unconventional-drugs-compared-with-their-reported-pharmacokinetic-pharmacodynamic-parameters
#5
Joseph S Cavanaugh, Ruwen Jou, Mei-Hua Wu, Tracy Dalton, Ekaterina Kurbatova, Julia Ershova, J Peter Cegielski
Background: The second-line drugs recommended to treat drug-resistant TB are toxic, expensive and difficult to procure. Given increasing resistance, the need for additional anti-TB drugs has become more urgent. But new drugs take time to develop and are expensive. Some commercially available drugs have reported anti-mycobacterial activity but are not routinely used because supporting laboratory and clinical evidence is sparse. Methods: We analysed 217 MDR M. tuberculosis isolates including 153 initial isolates from unique patients and 64 isolates from follow-up specimens during the course of treatment...
February 20, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28331806/myroides-bacteremia-a-case-report-and-concise-review
#6
Rudra Beharrysingh
Myroides species are bacteria found commonly in environmental sources, such as water and soil. Despite this, they are historically uncommon pathogens, tending to affect primarily immunocompromised hosts. Based on a review of the current cases listed in the U.S. National Institutes of Health's National Library of Medicine (Table 1), there have been 48 reported cases of infection to date, one third of which have been reported in only the last seven years. This report outlines a case of bacteremia caused by Myroides species occurring in a diabetic male on chemotherapy for Merkel cell cancer...
2017: IDCases
https://www.readbyqxmd.com/read/28328967/phenotypic-and-molecular-characterization-of-antimicrobial-resistance-in-enterobacter-spp-isolates-from-companion-animals-in-japan
#7
Kazuki Harada, Takae Shimizu, Yujiro Mukai, Ken Kuwajima, Tomomi Sato, Akari Kajino, Masaru Usui, Yutaka Tamura, Yui Kimura, Tadashi Miyamoto, Yuzo Tsuyuki, Asami Ohki, Yasushi Kataoka
The emergence of antimicrobial resistance among Enterobacter spp., including resistance to extended-spectrum cephalosporins (ESC), is of great concern in both human and veterinary medicine. In this study, we investigated the prevalence of antimicrobial resistance among 60 isolates of Enterobacter spp., including E. cloacae (n = 44), E. aerogenes (n = 10), and E. asburiae (n = 6), from clinical specimens of dogs and cats from 15 prefectures in Japan. Furthermore, we characterized the resistance mechanisms harbored by these isolates, including extended-spectrum β-lactamases (ESBLs) and plasmid-mediated quinolone resistance (PMQR); and assessed the genetic relatedness of ESC-resistant Enterobacter spp...
2017: PloS One
https://www.readbyqxmd.com/read/28324783/recent-updates-of-carbapenem-antibiotics
#8
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/28320724/piperacillin-tazobactam-versus-other-antibacterial-agents-for-treatment-of-bloodstream-infections-due-to-ampc-beta-lactamase-producing-enterobacteriaceae
#9
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/28303836/carbapenem-nonsusceptibility-with-modified-oprd-in-clinical-isolates-of-pseudomonas-aeruginosa-from-india
#10
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/28296377/-melioidosis-report-of-the-first-case-in-a-northern-state-of-m%C3%A3-xico
#11
Carlos Boroel-Cervantes, Mónica Ibarra-Valdez, Sandra Miranda-Pacheco, Elías Sánchez-Camarena, Tamara Wolburgth-Franco, Andrés Ortìz-González, José Luis Domínguez-Ríos
The melioidosis, is an infection caused by Burkhordelia pseudomallei that comprises heterogeneous clinical syndromes with acute or chronic evolution. The objective of this article is to report a case with unusual presentation and outside the known epidemiological context. We present the case of a 48-year-old man who came to our hospital with fever and a history of an abscess in the right subscapular region, physical examination showed hepatomegaly, splenomegaly, fever, without pulmonary symptoms. Within study it reveal multiple abscesses in liver and spleen, requiring surgical exploration and antibiotics (meropenem/vancomycin)...
March 2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28295668/dissemination-of-metallo-%C3%AE-lactamase-in-pseudomonas-aeruginosa-isolates-in-egypt-mutation-in-blavim-4
#12
Hany Hashem, Amro Hanora, Salah Abdalla, Alaa Shaeky, Alaa Saad
This study was designed to investigate the prevalence of metallo-β-lactamase (MBL) in Pseudomonas aeruginosa isolates collected from Suez Canal University Hospital in Ismailia, Egypt. Antibiotic susceptibility testing and phenotypic and genotypic screening for MBLs were performed on 147 isolates of P. aeruginosa. MICs were determined by agar dilution method for carbapenem that was ≥2 μg/mL for meropenem. MBL genes were detected by multiplex and monoplex PCR for P. aeruginosa-harbored plasmids. Mutation profile of sequenced MBL genes was screened using online software Clustal Omega...
March 15, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/28290754/pulmonary-nocardia-beijingensis-infection-associated-with-the-use-of-alemtuzumab-in-a-patient-with-multiple-sclerosis
#13
Marwan Sheikh-Taha, Lourdes C Corman
Nocardia is a Gram-positive aerobic pathogen that usually affects immunocompromised patients. We report a case of pulmonary infection caused by a rare Nocardia species, Nocardia beijingensis, in a 50-year-old woman who had received alemtuzumab for the treatment of her multiple sclerosis. The invasive pulmonary infection was successfully treated with meropenem.
February 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28289522/device-associated-infection-rates-mortality-length-of-stay-and-bacterial-resistance-in-intensive-care-units-in-ecuador-international-nosocomial-infection-control-consortium-s-findings
#14
Estuardo Salgado Yepez, Maria M Bovera, Victor D Rosenthal, Hugo A González Flores, Leonardo Pazmiño, Francisco Valencia, Nelly Alquinga, Vanessa Ramirez, Edgar Jara, Miguel Lascano, Veronica Delgado, Cristian Cevallos, Gasdali Santacruz, Cristian Pelaéz, Celso Zaruma, Diego Barahona Pinto
AIM: To report the results of the International Nosocomial Infection Control Consortium (INICC) study conducted in Quito, Ecuador. METHODS: A device-associated healthcare-acquired infection (DA-HAI) prospective surveillance study conducted from October 2013 to January 2015 in 2 adult intensive care units (ICUs) from 2 hospitals using the United States Centers for Disease Control/National Healthcare Safety Network (CDC/NHSN) definitions and INICC methods. RESULTS: We followed 776 ICU patients for 4818 bed-days...
February 26, 2017: World Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28288784/development-and-validation-of-a-measurement-procedure-based-on-ultra-high-performance-liquid-chromatography-tandem-mass-spectrometry-for-simultaneous-measurement-of-%C3%AE-lactam-antibiotic-concentration-in-human-plasma
#15
Raül Rigo-Bonnin, Alba Ribera, Ariadna Arbiol-Roca, Sara Cobo-Sacristán, Ariadna Padullés, Òscar Murillo, Evelyn Shaw, Rosa Granada, Xosé L Pérez-Fernández, Fe Tubau, Pedro Alía
BACKGROUND: The administration of β-lactam antibiotics in continuous infusion could let optimize the pharmacokinetic/pharmacodynamic parameters, especially in the treatment of serious bacterial infections. In this context, and also due to variability in their plasmatic concentrations, therapeutic drug monitoring (TDM) may be useful to optimize dosing and, therefore, be useful for the clinicians. MATERIAL AND METHODS: We developed and validated a measurement procedure based on ultra-high performance liquid chromatography-tandem mass spectrometry for simultaneous measurement of amoxicillin, ampicillin, cloxacillin, piperacillin, cefepime, ceftazidime, cefuroxime, aztreonam and meropenem concentrations in plasma...
March 10, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28285291/pattern-of-pediatric-bacterial-infection-and-antibiotic-resistance-in-new-delhi
#16
Manas Pratim Roy, Rajni Gaind, Kailash Chander Aggarwal, Harish Kumar Chellani, Indu Biswal
The retrospective study analyzed 1025 bacterial isolates from blood cultures collected from pediatric patients admitted in a tertiary-care hospital in New Delhi to find out drug sensitivity patterns. Staphylococcus was isolated from approximate 70% of the cultures, with 63.7% of them being methicillin-resistant. Meropenem resistance among acinetobacter was 38.6%.
February 15, 2017: Indian Pediatrics
https://www.readbyqxmd.com/read/28283829/the-efficacy-of-the-direct-clinical-intervention-for-infectious-diseases-by-a-pediatric-infectious-disease-specialist-in-the-pediatric-ward-of-a-tertiary-medical-facility-without-a-pediatric-antimicrobial-stewardship-program
#17
T Hoshina, N Yamamoto, M Ogawa, T Nakamoto, K Kusuhara
Antimicrobial stewardship programs (ASPs) have been introduced in most hospital complexes; however, they are not always useful for pediatric patients. The aim of this study is to investigate the efficacy of direct clinical intervention for infectious diseases by a pediatric infectious disease specialist in a tertiary medical facility without pediatric ASP. This retrospective study included 1,821 patients who were hospitalized in the pediatric ward of a large metropolitan hospital from 2010 to 2015. The clinical course, the use of intravenous antimicrobial agents and the results of a microbiological analysis were compared between the period after the beginning of direct intervention by the specialist (post-intervention period) and the previous period (pre-intervention period)...
March 10, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28273965/emergence-of-carbapenem-resistant-non-fermenting-gram-negative-bacilli-isolated-in-an-icu-of-a-tertiary-care-hospital
#18
Sonika Agarwal, Barnali Kakati, Sushant Khanduri, Shalini Gupta
INTRODUCTION: The emergence and spread of Multi-Drug Resistant (MDR) Non-Fermenting Gram-Negative Bacilli (NFGNB) in Intensive Care Units (ICU) and their genetic potential to transmit diverse antibiotic resistance regardless of their ability to ferment glucose poses a major threat in hospitals. The complex interplay of clonal spread, persistence, transmission of resistance elements and cell-cell interaction leads to the difficulty in controlling infections caused by these multi drug-resistant strains...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28272221/ecthyma-gangrenosum-in-a-3-month-old-previously-healthy-infant-a-case-report
#19
Xiao-Ting Zhang, Wan-Wan Jin, Xin-Hua Ma, Hai-Feng Yu, Xu-Hua Tang
RATIONALE: Ecthyma gangrenosum (EG) is an aggressive cutaneous disease caused by local or systemic infection with Pseudomonas aeruginosa. EG is characterized by cutaneous manifestations ranging from nodule and papule, to necrotic ulceration with surrounding erythema, especially with black eschar or central crust. EG presents with characteristic skin lesions which is important to establish diagnosis of sepsis caused by P aeruginosa, a serious condition that can be treated efficiently if diagnosed early...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28264846/substantial-impact-of-altered-pharmacokinetics-in-critically-ill-patients-on-the-antibacterial-effects-of-meropenem-evaluated-via-the-dynamic-hollow-fiber-infection-model
#20
Phillip J Bergen, Jürgen B Bulitta, Carl M J Kirkpatrick, Kate E Rogers, Megan J McGregor, Steven C Wallis, David L Paterson, Roger L Nation, Jeffrey Lipman, Jason A Roberts, Cornelia B Landersdorfer
Critically ill patients frequently have substantially altered pharmacokinetics compared to non-critically ill patients. We investigated the impact of pharmacokinetic alterations on bacterial killing and resistance for commonly used meropenem dosing regimens. A Pseudomonas aeruginosa isolate (MICmeropenem 0.25 mg/L) was studied in the hollow-fiber infection model (inoculum ∼10(7.5) CFU/mL; 10 days). Pharmacokinetic profiles representing critically ill patients with augmented renal clearance (ARC), normal, or impaired renal function (creatinine clearances of 285, 120 or ∼10 mL/min, respectively) were generated for three meropenem regimens (2g, 1g and 0...
March 6, 2017: Antimicrobial Agents and Chemotherapy
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