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https://www.readbyqxmd.com/read/29158999/recurrent-primary-suprahepatic-abscess-due-to-providencia-stuartii-a-rare-phenomenon
#1
Kyawzaw Lin, Aung Naing Lin, Sandar Linn, Madhavi Reddy, Anjali Bakshi
Gram-negative urease-producing bacilli, Providencia stuartii (P. stuartii), is reported in urinary tract infections, gastroenteritis, and bacteremia in humans but they rarely present with a hepatic abscess. We present a rare case of a recurrent suprahepatic cyst due to P. stuartii in a 45-year-old female, intravenous ( IV) heroin abuser with chronic hepatitis B and C. A 45-year-old female with 10 days status post right suprahepatic abscess drainage presented with recurrent, right, upper quadrant abdominal pain for one day...
September 16, 2017: Curēus
https://www.readbyqxmd.com/read/29158272/combination-antibiotic-exposure-selectively-alters-the-development-of-vancomycin-intermediate-resistance-in-staphylococcus-aureus
#2
Xuting Zheng, Andrew D Berti, Sue McCrone, Melanie Roch, Adriana E Rosato, Warren E Rose, Baiyi Chen
Invasive methicillin-resistant Staphylococcus aureus (MRSA) treated with vancomycin (VAN) is associated with reduced VAN susceptibility and treatment failure. VAN combination therapy is one strategy to improve response, but comprehensive assessments of combinations to prevent resistance are limited. This study identifies optimal combinations to prevent the emergence of VAN-intermediate Staphylococcus aureus (VISA). Two standard MRSA and two heterogeneous VISA (hVISA) strains were exposed for 28 days in vitro to VAN alone, VAN with cefazolin (CFZ), fosfomycin (FOF), gentamicin (GEN), meropenem (MEM), rifampin (RIF), piperacillin-tazobactam (TZP) or trimethoprim-sulfamethoxazole (SXT)...
November 20, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29154953/correlation-between-cefepime-utilization-and-pseudomonas-aeruginosa-resistance-rate-to-beta-lactams-and-carbapenems-in-patients-with-healthcare-associated-infections
#3
Zorana M Djordjevic, Marko M Folic, Slobodan M Jankovic
OBJECTIVES: There is direct link between overutilization or abuse of antibiotics and P.aeruginosa resistance rate, but other factors could influence the resistance rate, too. The study aim was to observe changes of P.aeruginosa resistance rate in patients with hospital acquired infections (HAIs) after a period of cefepime unavailability in an intensive care unit (ICU). METHODS: The study was designed as retrospective observational analysis of trends in utilization of antibiotics and density of resistance to antibiotics...
November 14, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/29153975/optimisation-of-empirical-antimicrobial-therapy-in-patients-with-haematological-malignancies-and-febrile-neutropenia-how-long-study-an-open-label-randomised-controlled-phase-4-trial
#4
Manuela Aguilar-Guisado, Ildefonso Espigado, Almudena Martín-Peña, Carlota Gudiol, Cristina Royo-Cebrecos, José Falantes, Lourdes Vázquez-López, María Isabel Montero, Clara Rosso-Fernández, María de la Luz Martino, Rocío Parody, José González-Campos, Sebastián Garzón-López, Cristina Calderón-Cabrera, Pere Barba, Nancy Rodríguez, Montserrat Rovira, Enrique Montero-Mateos, Jordi Carratalá, José Antonio Pérez-Simón, José Miguel Cisneros
BACKGROUND: Continuation of empirical antimicrobial therapy (EAT) for febrile neutropenia in patients with haematological malignancies until neutrophil recovery could prolong the therapy unnecessarily. We aimed to establish whether EAT discontinuation driven by a clinical approach regardless of neutrophil recovery would optimise the duration of therapy. METHODS: We did an investigator-driven, superiority, open-label, randomised, controlled phase 4 clinical trial in six academic hospitals in Spain...
November 15, 2017: Lancet Haematology
https://www.readbyqxmd.com/read/29153444/retrospective-evaluation-of-piperacillin-tazobactam-imipenem-cilastatin-and-meropenem-used-on-surgical-floors-at-a-tertiary-care-hospital-in-saudi-arabia
#5
Eman Youssif, Mohammed Aseeri, Sahal Khoshhal
BACKGROUND: The appropriate use of broad-spectrum antibiotics, including appropriate de-escalation, is essential to reduce the emergence of antibiotic resistance. In surgical floors antibiotics are prescribed for prophylaxis (mostly, single dose), empirical treatment (started if infection is suspected till bacteria are identified with its sensitivity to antibiotics), or treatment of well-defined infection of previously isolated bacteria with its sensitivity to antibiotics. In this study, we aimed to evaluate the use of broad-spectrum antibiotics based on requests for cultures and de-escalation based on sensitivity results of culture tests at tertiary care hospital...
November 15, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/29151781/molecular-epidemiology-of-extended-spectrum-%C3%AE-lactamase-producing-escherichia-coli-pathotypes-in-diarrheal-children-from-low-socioeconomic-status-communities-in-bihar-india-emergence-of-the-ctx-m-type
#6
Abhishek Mandal, Abhishek Sengupta, Ajay Kumar, Utpal K Singh, Anil K Jaiswal, Pradeep Das, Sushmita Das
Background: Childhood diarrheal diseases remain highly endemic in India, but the emergence of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli among children with diarrhea in Bihar remains elusive. In this study, we determine and characterize ESBL-producing E coli pathotypes among hospitalized diarrheal preschool children living in low socioeconomic level communities in Bihar, India. Materials and methods: The stool samples were collected everyday throughout the year for 2 consecutive years...
2017: Infectious Diseases
https://www.readbyqxmd.com/read/29151282/epidemiology-and-impact-of-bloodstream-infections-among-kidney-transplant-recipients-a-retrospective-single-center-experience
#7
Ali M Shendi, Gabriel Wallis, Helena Painter, Mark Harber, Sophie Collier
BACKGROUND: Bloodstream infections (BSI) represent an important source of morbidity and mortality, as well as an increasing therapeutic challenge, among solid organ transplant recipients. Understanding the epidemiological and microbiological characteristics of BSI following renal transplantation is paramount to the implementation of appropriate preventative and therapeutic measures. METHODS: We conducted a retrospective review of all BSI episodes occurring between July 2009 and April 2016 in adult patients, who received a renal transplant at Royal Free London hospital...
November 19, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/29149337/mechanisms-leading-to-in-vivo-ceftolozane-tazobactam-resistance-development-during-the-treatment-of-infections-caused-by-mdr-pseudomonas-aeruginosa
#8
Pablo A Fraile-Ribot, Gabriel Cabot, Xavier Mulet, Leonor Periañez, M Luisa Martín-Pena, Carlos Juan, José L Pérez, Antonio Oliver
Objectives: Characterization of the mechanisms driving ceftolozane/tazobactam resistance development in 5 of 47 (10.6%) patients treated for MDR Pseudomonas aeruginosa infections in a Spanish hospital. Methods: Five pairs of ceftolozane/tazobactam-susceptible/resistant P. aeruginosa isolates were studied. MICs were determined by broth microdilution, clonal relatedness was assessed by MLST and resistance mechanisms were investigated by phenotypic and genotypic methods, including WGS...
November 14, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29148816/assessment-of-anti-piperacillin-igg-binding-to-structurally-related-drug-protein-adducts
#9
Mohammed Amali, Rosalind Jenkins, Xioali Meng, Lee Faulkner, Paul Whitaker, Daniel Peckham, B Kevin Park, Dean John Naisbitt
The risk of developing hypersensitivity to alternative antibiotics is a concern for penicillin hypersensitive patients and healthcare pro-viders. Herein we use piperacillin hypersensitivity as a model to explore the reactivity of drug-specific IgG against alternative β-lactam protein adducts. Mass spectrometry was used to show the drugs (amoxicillin, flucloxacillin, benzyl penicillin, aztreonam and pipera-cillin) bind to similar lysine residues on the protein carrier bovine serum albumin. However, the hapten-specific IgG antibodies found in piperacillin hypersensitive patient plasma did not bind to other β-lactam protein conjugates...
November 17, 2017: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/29147117/colistin-resistance-of-pseudomonas-aeruginosa-isolated-from-snakes-in-taiwan
#10
Po-Yu Liu, Ling-Ling Weng, Shu-Ying Tseng, Chou-Chen Huang, Ching-Chang Cheng, Yan-Chiao Mao, Kwong-Chung Tung
This study included fifty-eight isolates of P. aeruginosa from the oral cavity of snakes that were recruited from clinical cases, captive and wild snakes. The minimum inhibitory concentrations (MICs) for the determination of susceptibility were identified by the broth microdilution method. Polymerase chain reaction (PCR) was employed to detect β-lactamases genes. With regard to antipseudomonal antibiotics, the lowest nonsusceptible rates were in aztreonam (15%), piperacillin/tazobactam (12%), and amikacin (9%)...
2017: Canadian Journal of Infectious Diseases & Medical Microbiology
https://www.readbyqxmd.com/read/29140892/proficiency-testing-for-meropenem-and-piperacillin-therapeutic-drug-monitoring-preliminary-results-from-the-belgian-society-on-infectiology-and-clinical-microbiology-pk-pd-working-group
#11
Mieke Carlier, Alexandre Athanasopoulos, Daniëlle Borrey, Pieter Colin, Frédéric Cotton, Raphael Denooz, Hugo Neels, Isabel Spriet, Timothy Ghys, Alain G Verstraete, Veronique Stove
No abstract text is available yet for this article.
November 14, 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/29133568/activity-of-ceftolozane-tazobactam-against-carbapenem-resistant-carbapenemase-non-producing-pseudomonas-aeruginosa-and-associated-resistance-mechanisms
#12
Yu Mi Wi, Kerryl E Greenwood-Quaintance, Audrey N Schuetz, Kwan Soo Ko, Kyong Ran Peck, Jae-Hoon Song, Robin Patel
Although carbapenems are effective for treating serious multidrug-resistant Pseudomonas aeruginosa infections, carbapenem-resistant P. aeruginosa (CRPA) is now being reported worldwide. Ceftolozane/tazobactam (C/T) demonstrates activity against many multidrug-resistant isolates. We evaluated the activity of C/T and compared its activity to that of ceftazidime/avibactam (C/A) using a well-characterized collection of carbapenemase non-producing CRPA isolates. Forty-two carbapenemase non-producing CRPA isolates from a previous study (Int J Antimicrob Agents 2012;40:168-72) were included...
November 13, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29132352/intensive-care-antibiotic-consumption-and-resistance-patterns-a-cross-correlation-analysis
#13
Luminita Baditoiu, Carmen Axente, Diana Lungeanu, Delia Muntean, Florin Horhat, Roxana Moldovan, Elena Hogea, Ovidiu Bedreag, Dorel Sandesc, Monica Licker
BACKGROUND: Over recent decades, a dramatic increase in infections caused by multidrug-resistant pathogens has been observed worldwide. The aim of the present study was to investigate the relationship between local resistance bacterial patterns and antibiotic consumption in an intensive care unit in a Romanian university hospital. METHODS: A prospective study was conducted between 1st January 2012 and 31st December 2013. Data covering the consumption of antibacterial drugs and the incidence density for the main resistance phenotypes was collected on a monthly basis, and this data was aggregated quarterly...
November 13, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/29131156/impact-of-choice-timing-sequence-and-combination-of-broad-spectrum-antibiotics-on-the-outcome-of-allogeneic-haematopoietic-stem-cell-transplantation
#14
F Farowski, V Bücker, J J Vehreschild, L Biehl, R Cruz-Aguilar, C Scheid, U Holtick, N Jazmati, H Wisplinghoff, O A Cornely, M J G T Vehreschild
Recent data link the incidence of intestinal GvHD (iGvHD) after allogeneic haematopoietic stem cell transplantation (aSCT) to exposure with piperacillin-tazobactam or imipenem-cilastatin. To assess relevance of timing, duration, sequence and combination of antibiotic treatment in this setting, we applied a time-dependent model to our aSCT cohort. Patients from the prospective Cologne Cohort of Neutropenic Patients (CoCoNut) undergoing aSCT from January 2007 to April 2013 were included into a time-dependent multivariate Cox proportional hazards regression model with backward-stepwise selection...
November 13, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/29127502/piperacillin-tazobactam-as-alternative-to-carbapenems-for-icu-patients
#15
REVIEW
Benoit Pilmis, Vincent Jullien, Alexis Tabah, Jean-Ralph Zahar, Christian Brun-Buisson
Several studies suggest that alternatives to carbapenems, and particulary beta-lactam/beta-lactamase inhibitor combinations, can be used for therapy of extended-spectrum beta-lactamase-producing Enterobacteriaceae (ESBL-PE)-related infections in non-ICU patients. Little is known concerning ICU patients in whom achieving the desired plasmatic pharmacokinetic/pharmacodynamic (PK/PD) target may be difficult. Also, in vitro susceptibility to beta-lactamase inhibitors might not translate into clinical efficacy. We reviewed the recent clinical studies examining the use of BL/BLI as alternatives to carbapenems for therapy of bloodstream infection, PK/PD data and discuss potential ecological benefit from avoiding the use of carbapenems...
November 10, 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/29124451/current-treatment-concepts-for-iatrogenic-ventriculitis-a-nationwide-survey-in-germany
#16
Niklas von Spreckelsen, Norma Jung, Sergej Telentschak, Jürgen Hampl, Roland Goldbrunner, Stefan Grau
BACKGROUND: Iatrogenic ventriculitis is a common complication of the external ventricular drainage. While the procedure and indications for external ventricular drains (EVD) are highly standardized, the treatment of ventriculitis is not clearly defined. OBJECTIVE: To depict the treatment of iatrogenic ventriculitis currently performed in German hospitals. METHODS: A standardized questionnaire consisting of 18 multiple choice questions, each with the ability to provide additional individual answers, covering the diagnosis and treatment of iatrogenic ventriculitis as well as general handling of EVDs, was sent to 121 neurosurgical hospitals registered in the German Society for Neurosurgery (DGNC)...
November 9, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29121839/simplifying-piperacillin-tazobactam-dosing-pharmacodynamics-of-utilizing-only-4-5-or-3-375-g-doses-for-patients-with-normal-and-impaired-renal-function
#17
Abrar K Thabit, Mordechai Grupper, David P Nicolau, Joseph L Kuti
OBJECTIVES: To evaluate the pharmacodynamic exposure of piperacillin/tazobactam across the renal function range using 4.5 or 3.375 g dosing regimens. METHODS: A 5000-patient Monte Carlo simulation was conducted to determine the probability of achieving 50% free time above the minimum inhibitory concentration ( fT > MIC) for piperacillin. Proposed regimens, using solely 4.5 or 3.375 g strengths, were compared with regimens listed in piperacillin/tazobactam prescribing information over creatinine clearance (CrCl) ranges of 120 mL/min to hemodialysis...
December 2017: Journal of Pharmacy Practice
https://www.readbyqxmd.com/read/29116995/prolonged-infusion-piperacillin-tazobactam-decreases-mortality-and-improves-outcomes-in-severely-ill-patients-results-of-a-systematic-review-and-meta-analysis
#18
Nathaniel J Rhodes, Jiajun Liu, J Nicholas O'Donnell, Joel M Dulhunty, Mohd H Abdul-Aziz, Patsy Y Berko, Barbara Nadler, Jeffery Lipman, Jason A Roberts
OBJECTIVE: Piperacillin-tazobactam is a commonly used antibiotic in critically ill patients; however, controversy exists as to whether mortality in serious infections can be decreased through administration by prolonged infusion compared with intermittent infusion. The purpose of this systematic review and meta-analysis was to describe the impact of prolonged infusion piperacillin-tazobactam schemes on clinical endpoints in severely ill patients. DESIGN: We conducted a systematic literature review and meta-analysis searching MEDLINE, Cumulative Index to Nursing and Allied Health Literature, and the Cochrane Library from inception to April 1, 2017, for studies...
November 7, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/29110837/the-burden-of-neutropenic-sepsis-in-patients-with-advanced-non-small-cell-lung-cancer-treated-with-single-agent-docetaxel-a-retrospective-study
#19
Toby Talbot, Adam Dangoor, Riyaz Shah, Jay Naik, Denis Talbot, Jason F Lester, Riccardo Cipelli, Matt Hodgson, Ajay Patel, Max Summerhayes, Thomas Newsom-Davis
OBJECTIVES: To describe rates of confirmed and suspected neutropenic sepsis (NS) and associated hospital resource utilisation in patients with non-small cell lung cancer (NSCLC) treated with docetaxel monotherapy following relapse after ≥1 line of chemotherapy in routine UK clinical practice. MATERIALS AND METHODS: A multi-centre, retrospective, observational research study was conducted in seven centres across England and Wales. Adult patients with stage III/IV NSCLC initiated on docetaxel monotherapy between 2010 and 2016 in routine clinical practice (aged ≥18 years at initiation) following failure of first-line chemotherapy were eligible...
November 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/29110552/antibiotic-resistance-in-diabetic-foot-soft-tissue-infections-a-series-from-greece
#20
Maria Demetriou, Nikolaos Papanas, Periklis Panagopoulos, Maria Panopoulou, Efstratios Maltezos
Diabetic foot infections are a common and serious problem for all health systems worldwide. The aim of this study was to examine the resistance to antibiotics of microorganisms isolated from infected soft tissues of diabetic foot ulcers, using tissue cultures. We included 113 consecutive patients (70 men, 43 women) with a mean age of 66.4 ± 11.2 years and a mean diabetes duration of 14.4 ± 7.6 years presenting with diabetic foot soft tissue infections. Generally, no high antibiotic resistance was observed...
November 1, 2017: International Journal of Lower Extremity Wounds
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