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gram-negative bacteremia

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https://www.readbyqxmd.com/read/27904585/serum-procalcitonin-levels-distinguish-gram-negative-bacterial-sepsis-from-gram-positive-bacterial-and-fungal-sepsis
#1
Shuhua Li, Hengmo Rong, Qinliang Guo, Yifei Chen, Guqing Zhang, Jiong Yang
BACKGROUND: Serum procalcitonin (PCT) levels differ in patients with bacterial or fungal infections and are significantly elevated in patients with Gram-negative bacteremia. We evaluated the diagnostic accuracy of different inflammatory markers to discriminate sepsis caused by different pathogens. MATERIALS AND METHODS: We included 328 episodes of bacteremia from 292 patients with sepsis and 31 patients with suspected sepsis in this study. Medical records of patients who had bacteremia caused by Gram-negative bacteria (Gram-negative), Gram-positive bacteria (Gram-positive) or fungi were reviewed, and information about PCT and other inflammatory markers was recorded...
2016: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/27890724/clinical-characteristics-and-antimicrobial-susceptibilities-of-anaerobic-bacteremia-in-an-acute-care-hospital
#2
Thean Yen Tan, Lily Siew Yong Ng, Lee Ling Kwang, Suma Rao, Li Ching Eng
: This study investigated the clinical features of anaerobic bacteraemia in an acute-care hospital, and evaluated the antimicrobial susceptibility of these isolates to commonly available antibiotics. MATERIALS & METHODS: Microbiological and epidemiological data from 2009-2011were extracted from the laboratory information system and electronic medical records. One hundred and eleven unique patient episodes consisting of 116 anaerobic isolates were selected for clinical review and antibiotic susceptibility testing...
November 24, 2016: Anaerobe
https://www.readbyqxmd.com/read/27872410/risk-of-mortality-of-catheter-related-bloodstream-infections-caused-by-acinetobacter-species-is-early-removal-of-the-catheters-associated-with-a-better-survival-outcome
#3
Yi Lee, Yi-Tzu Lee, Yung-Chih Wang, Chung-Ting Chen, Jun-Ren Sun, Chang-Pan Liu, Yuan-Meng Liu, Shu-Chen Kuo, Chun-Hsiang Chiu, Ya-Sung Yang, Jung-Chung Lin, Te-Li Chen
PURPOSE: Bloodstream infections (BSIs) caused by Acinetobacter species have been extensively reported, however, which majorly focused on respiratory tract infections. The risk of mortality and the effect of early catheter removal on survival in catheter-related BSIs (CRBSIs) caused by Acinetobacter spp. remain unclear. This study aims to investigate that. METHODS: This is a retrospective multicentric study conducted in Taiwan from 2012 to 2014. Patients with at least 1 positive blood culture and catheter culture for the same Acinetobacter spp...
November 20, 2016: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/27850340/702-aminoglycoside-pharmacodynamic-targets-and-clinical-success-in-treating-gram-negative-bacteremia
#4
Emily McCleary, Frank Tverdek, Jeffrey Bruno
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27832502/a-retrospective-study-of-the-impact-of-rapid-diagnostic-testing-on-time-to-pathogen-identification-and-antibiotic-use-for-children-with-positive-blood-cultures
#5
Angela Fimbres Veesenmeyer, Jared A Olson, Adam L Hersh, Chris Stockmann, Kent Korgenski, Emily A Thorell, Andrew T Pavia, Anne J Blaschke
INTRODUCTION: Rapid identification of bloodstream pathogens provides crucial information that can improve the choice of antimicrobial therapy for children. Previous impact studies have primarily focused on adults. Our objective was to evaluate the impact of rapid testing in a children's hospital on time to organism identification and antibiotic use in the setting of an established antimicrobial stewardship program. METHODS: We conducted a retrospective study over three consecutive time periods (spanning January 2013-August 2015) as our hospital sequentially introduced two rapid testing methods for positive blood cultures...
November 10, 2016: Infectious Diseases and Therapy
https://www.readbyqxmd.com/read/27826063/survival-after-multiple-traumas-is-associated-with-improved-outcomes-from-gram-negative-sepsis-clinical-and-experimental-evidence
#6
Eleftherios Mandragos, Aikaterini Pistiki, Iraklis Tsangaris, Christina Routsi, Michael Paraschos, Dionyssia-Irene Droggiti, Olga Savvidou, Dimitrios Mastrokalos, Panayiotis J Papagelopoulos, Mihai G Netea, Evangelos J Giamarellos-Bourboulis
OBJECTIVES: We investigated the susceptibility to Gram-negative sepsis after multiple traumas (MT). METHODS: From a prospective cohort of 5076 Greek patients with sepsis, 16 with Gram-negative bacteremia after MT were compared with 204 patients well-matched for severity, comorbidities and appropriateness of antimicrobials; circulating mononuclear cells were isolated and stimulated for the release of interleukin (IL)-10. Male C57Bl6J mice were subject to MT (right pneumothorax and right femur fracture) followed after 72 h by the intravenous challenge with Pseudomonas aeruginosa...
November 5, 2016: Journal of Infection
https://www.readbyqxmd.com/read/27825392/impact-of-two-different-antimicrobial-stewardship-methods-on-frequency-of-streamlining-antimicrobial-agents-in-patients-with-bacteremia
#7
Jennifer Lukaszewicz Bushen, Jimish M Mehta, Keith W Hamilton, Shawn Binkley, Daniel R Timko, Ebbing Lautenbach, David A Pegues
OBJECTIVE To assess the likelihood of antimicrobial streamlining between 2 antimicrobial stewardship methods. DESIGN Retrospective cohort study. SETTING Large academic medical center. METHODS Frequency and time to antimicrobial streamlining were compared during a prior authorization and a prospective audit period. Streamlining was defined as an antimicrobial change to a narrower agent if available or to a broader agent if the isolate was resistant to empiric therapy. Patients included were ≥18 years old with monomicrobial bacteremia with S...
November 9, 2016: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/27820968/safety-and-efficacy-of-daptomycin-in-outpatient-parenteral-antimicrobial-therapy-a-prospective-and-multicenter-cohort-study-daptodom-trial
#8
Carlos Cervera, Pedro Sanroma, Víctor González-Ramallo, Cristina García de la María, Gemma Sanclemente, Nieves Sopena, Marcos Pajarón, Antonio Segado, Manuel Mirón, Francisco Antón, Andima Basterretxea, Ana Cuende, José M Miró
BACKGROUND: Daptomycin is an optimal choice for outpatient parenteral antibiotic therapy (OPAT) because of its safety, once-daily administration and its activity against Gram-positive bacteria. Although daptomycin is increasingly being used in OPAT, limited information about its safety in this scenario is available. METHODS: We performed a prospective multicentre pilot study to evaluate the safety of daptomycin in outpatients with proved or suspected Gram-positive infections (DAPTODOM)...
November 8, 2016: Infectious Diseases
https://www.readbyqxmd.com/read/27818808/persistent-bacteremia-from-pseudomonas-aeruginosa-with-in-vitro-resistance-to-the-novel-antibiotics-ceftolozane-tazobactam-and-ceftazidime-avibactam
#9
Louie Mar Gangcuangco, Patricia Clark, Cynthia Stewart, Goran Miljkovic, Zane K Saul
Ceftazidime-avibactam and ceftolozane-tazobactam are new antimicrobials with activity against multidrug-resistant Pseudomonas aeruginosa. We present the first case of persistent P. aeruginosa bacteremia with in vitro resistance to these novel antimicrobials. A 68-year-old man with newly diagnosed follicular lymphoma was admitted to the medical intensive care unit for sepsis and right lower extremity cellulitis. The patient was placed empirically on vancomycin and piperacillin-tazobactam. Blood cultures from Day 1 of hospitalization grew P...
2016: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/27774521/fluoroquinolone-resistant-escherichia-coli-infections-after-transrectal-biopsy-of-the-prostate-in-the-veterans-affairs-healthcare-system
#10
Elie A Saade, Nuntra Suwantarat, Trina F Zabarsky, Brigid Wilson, Curtis J Donskey
BACKGROUND: Recent reports suggest that infections due to fluoroquinolone-resistant Escherichia coli (E. coli) are an increasingly common complication of transrectal biopsy of the prostate (TBP) in the United States. A better understanding of the magnitude and scope of these infections is needed to guide prevention efforts. Our objective is to determine whether the incidence of infections due to fluoroquinolone-resistant E. coli after TBP has increased nationwide in the Veterans Affairs Health Care System and to identify risk factors for infection...
2016: Pathogens & Immunity
https://www.readbyqxmd.com/read/27771837/bacteremia-during-neutropenic-episodes-in-children-undergoing-hematopoietic-stem-cell-transplantation-with-ciprofloxacin-and-penicillin-prophylaxis
#11
Worawut Choeyprasert, Suradej Hongeng, Usanarat Anurathapan, Samart Pakakasama
Bacteremia during neutropenic episodes is a cause of morbidity and mortality in patients undergoing hematopoietic stem cell transplantation (HSCT). We have used oral ciprofloxacin and penicillin V, from the start of the conditioning regimen until engraftment, for the prophylaxis of bacterial infection. The objective of this study was to retrospectively analyze the prevalence of and risk factors for breakthrough bacteremia during neutropenic episodes in autologous and allogeneic HSCT patients. There were 215 patients enrolled, with a median age of 8...
October 22, 2016: International Journal of Hematology
https://www.readbyqxmd.com/read/27757046/ability-of-procalcitonin-to-diagnose-bacterial-infection-and-bacteria-types-compared-with-blood-culture-findings
#12
Yuji Watanabe, Nozomi Oikawa, Maya Hariu, Ryota Fuke, Masafumi Seki
Procalcitonin (PCT) and C-reactive protein serve as biomarkers of infection in patients with sepsis/bacteremia. The present study assessed the clinical characteristics of 280 patients with suspected sepsis who were admitted to Tohoku Medical and Pharmaceutical University Hospital between January 2012 and December 2013. Among the patients, 133 and 147 were positive and negative for PCT, respectively. Patients who were PCT positive were older and more frequently male, had reduced levels of platelets and albumin, and increased levels of aspartate aminotransferase, alanine aminotransferase, blood urea nitrogen, creatinine, and C-reactive protein...
2016: International Journal of General Medicine
https://www.readbyqxmd.com/read/27740914/comparison-between-procalcitonin-and-c-reactive-protein-in-predicting-bacteremias-and-confounding-factors-a-case-control-study
#13
Hirokazu Nishikawa, Michinori Shirano, Yu Kasamatsu, Ayumi Morimura, Ko Iida, Tomomi Kishi, Tetsushi Goto, Saki Okamoto, Eiji Ehara
BACKGROUND: The detection of infectious bacteria in blood culture samples is important for diagnosis and treatment, but this requires 1-2 days at least, and is not adequate as a rapid test. Therefore, we have investigated the diagnostic ability and the optimal cutoff value of procalcitonin (PCT) and C-reactive protein (CRP) for predicting the bacteremias using receiver operating characteristic (ROC) curves and relative cumulative frequency distribution (RCD) curves. METHODS: A case-control study was performed in inpatients (852 subjects: 426 positive cultures and 426 negative cultures) from January 1 to December 31, 2014...
October 14, 2016: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/27738797/impact-of-antibacterial-prophylaxis-during-reinduction-chemotherapy-for-relapse-refractory-acute-myeloid-leukemia
#14
Beejal R Ganti, Bernard L Marini, Jerod Nagel, Dale Bixby, Anthony J Perissinotti
PURPOSE: This study evaluated the impact of antibacterial prophylaxis with levofloxacin in relapsed/refractory acute myeloid leukemia (AML) patients. METHODS: This was a retrospective, single-center, cohort study. Adult patients with relapsed/refractory AML admitted for reinduction chemotherapy between November 1, 2006 and June 15, 2015 were screened for inclusion. A protocol initiating levofloxacin prophylaxis was implemented on December 1, 2013. Patients receiving hypomethylating agents (decitabine/azacitidine) were not administered antibacterial prophylaxis and thus not included in this analysis...
October 14, 2016: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/27730778/antibiotic-lock-therapy-in-the-era-of-gram-negative-resistance
#15
Rajeev Soman, Neha Gupta, Mitesh Suthar, Jatin Kothari, Alan Almeida, Anjali Shetty, Camilla Rodrigues
BACKGROUND: Central-line-associated blood-stream infection (CLABSI) is a highly consequential nosocomial infection. The most effective management includes the removal of the infected catheter. Retention of the catheter and antibiotic lock therapy (ALT) along with systemic antibiotics may be attempted only if there are unusual extenuating circumstances. CLABSIs due to Gram-negative bacteria (GNB) is more common in our setting and the organisms are often highly resistant. Hence, there is a need to explore the use of novel antimicrobials for catheter lock solutions along with antibiofilm agents...
February 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27727759/stratifying-risk-factors-for-development-of-severe-sepsis-and-septic-shock-in-patients-with-gram-negative-bacteremia
#16
Mohan V Sumedha Maturu, Chandrashekar U K, Shivashankara K N
No abstract text is available yet for this article.
January 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27716983/pharmacokinetics-of-ceftazidime-avibactam-in-two-patients-with-kpc-producing-klebsiella-pneumoniae-bacteremia-and-renal-impairment
#17
John J Veillette, James Truong, Steven C Forland
Limited data exist regarding optimal dosing of ceftazidime/avibactam (C/A) in patients with unique physiology, who were excluded from published clinical trials. Data are also lacking regarding clinical efficacy of C/A in patients with infections due to multidrug-resistant gram-negative pathogens. To expand knowledge in these areas, we present pharmacokinetic data from two patients with Klebsiella pneumoniae carbapenemase (KPC)-producing K. pneumoniae bloodstream infections, both of whom had renal impairment, and one of whom was morbidly obese...
September 26, 2016: Pharmacotherapy
https://www.readbyqxmd.com/read/27716406/pseudomonas-mendocina-native-valve-infective-endocarditis-a-case-report
#18
Glenn J Rapsinski, Jina Makadia, Nitin Bhanot, Zaw Min
BACKGROUND: Gram-negative microorganisms are uncommon pathogens responsible for infective endocarditis. Pseudomonas mendocina, a Gram-negative water-borne and soil-borne bacterium, was first reported to cause human infection in 1992. Since then, it has rarely been reported as a human pathogen in the literature. We describe the first case of native valve infective endocarditis due to P. mendocina in the USA. CASE PRESENTATION: A 57-year-old white man presented with bilateral large leg ulcers, fever, and marked leukocytosis...
October 4, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27704735/antibiotic-resistant-gram-negative-bacteremia-in-febrile-neutropenic-children
#19
Jina Lee
No abstract text is available yet for this article.
September 2016: Infection & Chemotherapy
https://www.readbyqxmd.com/read/27665705/comparison-of-the-diagnostic-power-of-cytokine-patterns-and-procalcitonin-for-predicting-infection-among-paediatric-haematology-oncology-patients
#20
T Xia, X Xu, N Zhao, Z Luo, Y Tang
OBJECTIVES: To evaluate the diagnostic power of the cytokine patterns and serum procalcitonin (PCT) level for predicting infection in paediatric haematology-oncology patients. METHODS: Retrospective study including hospitalized children with haematology-oncology disease was conducted and their serum T helper type 1/type 2 cytokines were measured by a flow cytometric method. According to clinical symptoms, imaging and microbiological findings, febrile episodes were divided into five diagnostic groups serving as reference standard; and also grouped according to disease severity...
December 2016: Clinical Microbiology and Infection
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