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https://www.readbyqxmd.com/read/29350524/development-of-a-multiplexed-microsphere-pcr-for-rapid-culture-free-detection-and-gram-typing-of-bacteria-in-human-blood-samples
#1
Fang Liang, Daniel J Browne, Megan J Gray, Kate H Gartlan, David D Smith, Ross Barnard, Geoff R Hill, Simon Robert Corrie, Kate Markey
Blood stream infection is a significant clinical problem, particularly in vulnerable patient groups such as those undergoing chemotherapy and bone marrow transplantation. Clinical diagnostics for suspected blood stream infection remain centered around blood culture (highly variable timing, hours to days), and empiric use of broad-spectrum antibiotics is often employed for patients presenting with febrile neutropenia. Gram-typing provides the first opportunity to target therapy (e.g. combinations containing vancomycin or teicoplanin for Gram-positives; piperacillin-tazobactam or a carbapenem for Gram-negatives), however current approaches require blood culture...
January 19, 2018: ACS Infectious Diseases
https://www.readbyqxmd.com/read/29341837/ocular-permeation-of-topical-tazocin-and-its-effectiveness-in-the-treatment-of-pseudomonas-aeruginosa-induced-keratitis-in-rabbits
#2
Sujaya Singh, Renu Agarwal, Zulhilmi Abdul Razak, Robin Ngu, Lwin L Nyein, Sushil Vasudevan, Marina Kapitonova, Azida Juana Kadir, Subrayan Visvaraja
PURPOSE: Pseudomonas aeruginosa is the most common causative organism for contact lens-associated corneal ulcer and is commonly treated with fluoroquinolones. With the emergence of resistant strains, it is important to investigate alternative therapies. Despite well-established efficacy of tazocin against systemic Pseudomonas infections, its topical use for the treatment of Pseudomonas keratitis has not been described, hence this study was aimed to find the ocular permeation of Tazocin and its efficacy in treating keratitis in rabbit eyes...
January 17, 2018: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29337862/therapeutic-management-of-pseudomonas-aeruginosa-bloodstream-infection-non-susceptible-to-carbapenems-but-susceptible-to-old-cephalosporins-and-or-to-penicillins
#3
Ronit Zaidenstein, Asaf Miller, Ruthy Tal-Jasper, Hadas Ofer-Friedman, Menachem Sklarz, David E Katz, Tsillia Lazarovitch, Paul R Lephart, Bethlehem Mengesha, Oran Tzuman, Mor Dadon, Chen Daniel, Jacob Moran-Gilad, Dror Marchaim
It is unknown as to whether other beta-lactams can be used for bloodstream infections (BSI) resulting from Pseudomonas aeruginosa (PA) which are non-susceptible to one or more carbapenem. We conducted a retrospective cohort study at the Assaf Harofeh Medical Center (AHMC) from January 2010 to August 2014. Adult patients with PA-BSI non-susceptible to a group 2 carbapenem but susceptible to ceftazidime or piperacillin (with or without tazobactam), were enrolled. We compared the outcomes of patients who received an appropriate beta-lactam antibiotic ("cases") to those who received an appropriate non-beta-lactam antibiotic ("controls")...
January 16, 2018: Microorganisms
https://www.readbyqxmd.com/read/29337703/new-antibiotics-for-ventilator-associated-pneumonia
#4
Matteo Bassetti, Antionio Vena, Nadia Castaldo, Elda Righi, Maddalena Peghin
PURPOSE OF REVIEW: Ventilator-associated pneumonia (VAP) caused by multidrug-resistant (MDR) bacteria represents a global emerging problem. Delayed prescription of an adequate treatment for VAP has been associated with higher morbidity and mortality. New molecules have been developed to face the need of compounds that are active against resistant Gram-positive and Gram-negative pathogens. The aim of this review is to summarize the current scenario of new therapeutic options for the treatment of VAP...
January 13, 2018: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/29322236/-urosepsis
#5
Mathias W Pletz, Sebastian Weis, Christina Forstner, Florian Wagenlehner
Urosepsis is defined as a severe disease due to organ failure caused by a urinary tract infection. An empirical antibiotic therapy should be instigated within the first hour after diagnosis. Urine cultures and blood cultures should be performed before antibiotic treatment. Further diagnostics should be carried out at an early stage to enable an interventional focus control in the case of urinary tract obstruction or abscess formation, if necessary. Gram-negative pathogens are most frequently isolated. Extended spectrum beta-lactamase (ESBL) forming bacteria as a cause of urosepsis are increasing...
January 10, 2018: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/29321120/evaluating-vancomycin-and-piperacillin-tazobactam-in-emergency-department-patients-with-severe-sepsis-and-septic-shock
#6
Christina Le, Frank Chu, Ronald Dunlay, Julian Villar, Peter Fedullo, Gabriel Wardi
STUDY OBJECTIVE: To determine the frequency and cause of inadequate initial antibiotic therapy with vancomycin and piperacillin-tazobactam in patients with severe sepsis and septic shock in the emergency department (ED), characterize its impact on patient outcomes, and identify patients who would benefit from an alternative initial empiric regimen. METHODS: Retrospective cohort study conducted between 2012 and 2015 in which 342 patients with culture-positive severe sepsis or septic shock who received initial vancomycin and piperacillin-tazobactam were reviewed to determine appropriateness of antimicrobial therapy, risk factors for inappropriate use, and outcome data...
December 29, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29317824/selection-of-piperacillin-tazobactam-infusion-mode-guided-by-sofa-score-in-cancer-patients-with-hospital-acquired-pneumonia-a-randomized-controlled-study
#7
Yang Lyu, Yang Yang, Xin Li, Min Peng, Xin He, Peng Zhang, Shangwen Dong, Wanhua Wang, Donghao Wang
Background: This study aimed to select piperacillin/tazobactam (TZP) infusion mode guided by Sequential Organ Failure Assessment (SOFA) score in cancer patients with hospital-acquired pneumonia (HAP) postoperation. Patients and methods: A total of 120 cancer patients with postoperative HAP were divided into two groups: improved administration group (L group) and conventional treatment group (Con group). The Con group received traditional infusion of TZP and the L group received it as prolonged infusion...
2018: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/29310949/antibiotic-resistance-rates-for-pseudomonas-aeruginosa-clinical-respiratory-and-bloodstream-isolates-among-the-veterans-affairs-healthcare-system-from-2009-to-2013
#8
Haley J Appaneal, Aisling R Caffrey, Lan Jiang, David Dosa, Leonard A Mermel, Kerry L LaPlante
Pseudomonas aeruginosa is a major cause of healthcare-associated infections and resistance among isolates is an increasing burden. The study purpose was to describe national resistance rates for clinical P. aeruginosa respiratory and bloodstream cultures and the prevalence of multidrug-resistant (MDR) P. aeruginosa within the Veterans Affairs (VA). MDR was defined as non-susceptibility to at least one drug in at least 3 of the following 5 categories: carbapenems, extended-spectrum cephalosporins, aminoglycosides, and piperacillin/tazobactam...
December 6, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/29305368/treatment-of-a-complex-orthopaedic-infection-due-to-extensively-drug-resistant-pseudomonas-aeruginosa
#9
Sidra Hassan, Mani D Kahn, Nidhi Saraiya, Priya Nori
According to the Centers for Disease Control and Prevention (CDC), approximately 51 000 healthcare-associated infections caused by Pseudomonas aeruginosa occur annually in the USA, more than 6000 of which (13%) are caused by multidrug resistant (MDR) strains. Ceftolozane/tazobactam (TOL/TAZ) (Zerbaxa) was approved by the US Food and Drug Administration (FDA) in December 2014 for the treatment of complicated intra-abdominal and urinary tract infections. At this time, clinical data on the role of TOL/TAZ treatment outside of FDA-approved indications is limited...
January 5, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29302933/assessing-the-effect-of-piperacillin-tazobactam-on-hematological-parameters-in-patients-admitted-with-moderate-or-severe-foot-infections
#10
Will Fry, Sean McCafferty, Catherine Gooday, Ian Nunney, Ketan K Dhatariya
INTRODUCTION: Piperacillin/tazobactam is a commonly used antibiotic for the empirical treatment of severe diabetic foot infections. One of the most feared complications of this drug is the development of pancytopenia. The aim of this study was to determine whether the use of piperacillin/tazobactam caused any hematological changes in patients admitted with severe diabetes-related foot infections from a specialist multidisciplinary foot clinic. Specifically, looking at whether it caused anemia, leukopenia, neutropenia, or thrombocytopenia...
January 4, 2018: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
https://www.readbyqxmd.com/read/29278970/a-clinical-and-microbiological-study-of-puerperal-sepsis-in-a-tertiary-care-hospital-in-india
#11
Jayasree Vankuru, Rashmi Bagga, Tanuja Muthyala, Vikas Gautam, Sunil Sethi, Vanita Jain, Pooja Sikka
OBJECTIVE: This prospective study was carried out to evaluate the clinical profile and bacterial isolates among women with puerperal sepsis in a tertiary hospital in North India. MATERIALS AND METHODS: Women with puerperal sepsis (n = 45) admitted from January 2015 to April 2016 were followed prospectively. Cultures were obtained from cervix, blood, urine, and pyoperitoneum. Initial antibiotics were cefotaxime or piperacillin with tazobactam plus amikacin plus clindamycin or metronidazole and were changed according to sensitivity...
January 7, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29277663/oat1-and-oat3-also-mediate-the-drug-drug-interaction-between-piperacillin-and-tazobactam
#12
Shijie Wen, Changyuan Wang, Yingjie Duan, Xiaokui Huo, Qiang Meng, Zhihao Liu, Shilei Yang, Yanna Zhu, Huijun Sun, Xiaodong Ma, Siyun Yang, Kexin Liu
This study aimed to demonstrate that organic anion transporters (OATs) mediate the drug-drug interaction (DDI) between piperacillin and tazobactam. After co-administration with piperacillin in rats, the AUC of tazobactam in plasma was significantly increased, and t1/2β was prolonged with significant reduction in plasma clearance, renal clearance and cumulative urinary excretion. In rat and human kidney slices, probenecid, p-aminohippurate and benzylpenicillin inhibited the uptake of piperacillin and tazobactam...
December 22, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29276241/development-of-institutional-guidelines-for-management-of-gram-negative-bloodstream-infections-incorporating-local-evidence
#13
Elizabeth B Nimmich, P Brandon Bookstaver, Joseph Kohn, Julie Ann Justo, Katie L Hammer, Helmut Albrecht, Majdi N Al-Hasan
Background: Appropriate empirical antimicrobial therapy is associated with improved outcomes of patients with Gram-negative bloodstream infections (BSI). Objective: Development of evidence-based institutional management guidelines for empirical antimicrobial therapy of Gram-negative BSI. Methods: Hospitalized adults with Gram-negative BSI in 2011-2012 at Palmetto Health hospitals in Columbia, SC, USA, were identified. Logistic regression was used to examine the association between site of infection acquisition and BSI due to Pseudomonas aeruginosa or chromosomally mediated AmpC-producing Enterobacteriaceae (CAE)...
November 2017: Hospital Pharmacy
https://www.readbyqxmd.com/read/29274802/susceptibility-testing-and-detection-of-%C3%AE-lactam-resistance-mechanisms-in-enterobacteriaceae-a-multicentre-national-proficiency-study
#14
María Díez-Aguilar, María-Carmen Conejo, María-Isabel Morosini, Núria Tormo Palop, Concepción Gimeno, Rafael Cantón, Álvaro Pascual
A nationwide study was developed to evaluate the ability of 60 Spanish clinical microbiology laboratories to predict the underlying β-lactam resistance mechanisms of 12 Enterobacteriaceae strains (CCS01-CCS12). Results obtained by two reference laboratories were compared with those reported by the participants that used their own routine susceptibility testing methodology. CLSI interpretive criteria were used in 53.3% of the centres, while 46.7% used EUCAST. The overall categorical agreement (CA) was 85.5%...
December 21, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/29259396/galactomannan-in-bronchoalveolar-lavage-fluid-for-diagnosis-of-invasive-pulmonary-aspergillosis-with-nonneutropenic-patients
#15
Qidong Zhuang, Hongying Ma, Yun Zhang, Lei Chen, Li Wang, Lin Zheng, Zaichun Deng, Zhongbo Chen
Background: We evaluated the utility of galactomannan (GM) in bronchoalveolar lavage fluid (BALF) for the diagnosis of invasive pulmonary aspergillosis (IPA) in nonneutropenic patients. Methods: A total of 183 patients were included in the final analysis. Bronchoscopies and the detection of GM in BALF were all performed on them. Results: Ten cases of IPA were diagnosed. ROC data demonstrated that, for diagnosing IPA, an optimal cutoff value for GM in BALF of 0...
2017: Canadian Respiratory Journal: Journal of the Canadian Thoracic Society
https://www.readbyqxmd.com/read/29244121/in-vitro-activity-of-ceftolozane-tazobactam-versus-antimicrobial-non-susceptible-pseudomonas-aeruginosa-clinical-isolates-including-mdr-and-xdr-isolates-obtained-from-across-canada-as-part-of-the-canward-study-2008-16
#16
Andrew Walkty, Heather Adam, Melanie Baxter, Philippe Lagacé-Wiens, James A Karlowsky, Daryl J Hoban, George G Zhanel
Objectives: Ceftolozane/tazobactam is a novel β-lactam β-lactamase inhibitor combination with a broad spectrum of activity that includes Pseudomonas aeruginosa. The purpose of this study was to evaluate the in vitro activity of ceftolozane/tazobactam and relevant comparators versus a large collection of antimicrobial non-susceptible P. aeruginosa clinical isolates recovered from patients across Canada (CANWARD, 2008-16). Methods: Susceptibility testing was performed on P...
December 12, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29239220/is-it-time-to-rethink-the-notion-of-carbapenem-sparing-therapy-against-extended-spectrum-%C3%AE-lactamase-producing-enterobacteriaceae-bloodstream-infections-a-critical-review
#17
Daniel B Chastain, Bryan P White, David A Cretella, Christopher M Bland
OBJECTIVE: To present systematic recommendations for carbapenem-sparing therapy against extended-spectrum β-lactamases (ESBLs) Enterobacteriaceae bloodstream infections (BSIs) derived from a critical review of clinical data. DATA SOURCES: A systematic literature search using PubMed and MEDLINE databases (January 1, 2012, to June 30, 2017) was performed using key MESH terms: ESBL or extended-spectrum β-lactamases and bacteremia or bloodstream infection with piperacillin/tazobactam, ciprofloxacin, levofloxacin, cefepime, cephamycins, carbapenem, doripenem, meropenem, and ertapenem...
December 1, 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/29237787/point-counterpoint-piperacillin-tazobactam-should-be-used-to-treat-infections-with-esbl-positive-organisms
#18
Audrey Schuetz, Sergio Reyes Salcedo, Pranita D Tamma
Beta-lactam/beta-lactamase inhibitor combinations (BLBLIs) are among the most controversial classes of antibiotic agents available for the treatment of infections caused by extended-spectrum beta-lactamase (ESBL)-producing Gram-negative bacteria (ESBL-GNR). Piperacillin-tazobactam (PTZ) is one of the most frequently utilized antibiotic agents for empiric gram-negative bacterial coverage and remains active against a large proportion of ESBL-GNR. Furthermore, good antimicrobial stewardship practices encourage the use of carbapenem-sparing treatment regimens for infections due to ESBL-GNR...
December 13, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29237206/-piperacillin-tazobactam-shortage-central-restriction-and-alternative-recommendations-as-effective-antibiotic-stewardship-intervention-at-a-maximal-care-hospital
#19
Johanna Kessel, Barbara Dolff, Thomas Wichelhaus, Nils Keiner, Michael Hogardt, Claudia Reinheimer, Imke Wieters, Sebastian Harder, Volkhard A J Kempf, Christoph Stephan
Background Drug supply bottleneck is a worldwide challenge, e. g. the antibiotics Piperacillin/Tazobactam shortage in 2016/2017. The efficacy of an appropriate replacement management was evaluated at the University Hospital Frankfurt (UHF). Methods The Antibiotic-Stewardship (ABS)-Team at UHF decreed a restriction of PIP/TAZ and provided alternative antibiotic therapy recommendations during the shortage period. Consequences of this intervention on antibiotic consumption and overall costs were investigated...
December 13, 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/29230684/imipenem-relebactam-and-meropenem-vaborbactam-two-novel-carbapenem-%C3%AE-lactamase-inhibitor-combinations
#20
REVIEW
George G Zhanel, Courtney K Lawrence, Heather Adam, Frank Schweizer, Sheryl Zelenitsky, Michael Zhanel, Philippe R S Lagacé-Wiens, Andrew Walkty, Andrew Denisuik, Alyssa Golden, Alfred S Gin, Daryl J Hoban, Joseph P Lynch, James A Karlowsky
Relebactam (formerly known as MK-7655) is a non-β-lactam, bicyclic diazabicyclooctane, β-lactamase inhibitor that is structurally related to avibactam, differing by the addition of a piperidine ring to the 2-position carbonyl group. Vaborbactam (formerly known as RPX7009) is a non-β-lactam, cyclic, boronic acid-based, β-lactamase inhibitor. The structure of vaborbactam is unlike any other currently marketed β-lactamase inhibitor. Both inhibitors display activity against Ambler class A [including extended-spectrum β-lactamases (ESBLs), Klebsiella pneumoniae carbapenemases (KPCs)] and class C β-lactamases (AmpC)...
December 12, 2017: Drugs
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