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mrsa bacteremia treatment

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https://www.readbyqxmd.com/read/29777150/risk-factors-of-treatment-failure-and-30-day-mortality-in-patients-with-bacteremia-due-to-mrsa-with-reduced-vancomycin-susceptibility
#1
Chien-Chang Yang, Cheng-Len Sy, Yhu-Chering Huang, Shian-Sen Shie, Jwu-Ching Shu, Pang-Hsin Hsieh, Ching-Hsi Hsiao, Chih-Jung Chen
Bacteremia caused by MRSA with reduced vancomycin susceptibility (MRSA-RVS) frequently resulted in treatment failure and mortality. The relation of bacterial factors and unfavorable outcomes remains controversial. We retrospectively reviewed clinical data of patients with bacteremia caused by MRSA with vancomycin MIC = 2 mg/L from 2009 to 2012. The significance of bacterial genotypes, agr function and heterogeneous vancomycin-intermediate S. aureus (hIVSA) phenotype in predicting outcomes were determined after clinical covariates adjustment with multivariate analysis...
May 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29664994/predictors-of-mortality-with-staphylococcus-aureus-bacteremia-in-elderly-adults
#2
Matteo Bassetti, Elda Righi, Paola Del Giacomo, Assunta Sartor, Filippo Ansaldi, Cecilia Trucchi, Cristiano Alicino, Enrico Maria Trecarichi, Teresa Spanu, Chiara Paganino, Mario Tumbarello, Alessia Carnelutti
OBJECTIVES: To analyze risk factors for early and late mortality in individuals aged 75 and older with Staphylococcus aureus bacteremia (SAB) in Italy. DESIGN: Four-year retrospective observational study (January 2011-December 2014). SETTING: Two tertiary care university hospitals in Italy (Santa Maria Misericordia Hospital in Udine, Policlinico Universitario Agostino Gemelli in Rome). PARTICIPANTS: All adults consecutively admitted with SAB...
April 17, 2018: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/29650891/-fourteen-cases-of-implanted-central-venous-access-port-related-bloodstream-infection
#3
Toshihiko Sakai, Masakazu Kono, Chie Koumura, Yuri Oyano, Noriko Sakuma, Hirokazu Tojima
We conducted a clinical study involving cases of central venous(CV)port-related infection in Tokyo Rosai Hospital. Fourteen patients with suspected CV port-related infection at Tokyo Rosai Hospital between April 2015 and January 2017 were observed. Identical bacterial types were detected from 2 sets of blood cultures and cultures from the catheter tip, and a definitive diagnosis was made. Data on patient background, causative bacteria, quick sequentialorgan failure assessment (qSOFA)score, CV port placement period, presence or absence of local inflammatory findings, and prognosis were analysed...
March 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29601996/vancomycin-and-daptomycin-minimum-inhibitory-concentration-as-a-predictor-of-methicillin-resistant-staphylococcus-aureus-bacteremia-outcome
#4
Jesus Ruiz, Paula Ramirez, Pablo Concha, Miguel Salavert-Lletí, Esther Villarreal, Monica Gordon, Juan Frasquet, Álvaro Castellanos-Ortega
OBJECTIVES: Our aim is to verify the persistence of the adverse prognostic effect of elevated vancomycin MIC in MRSA bacteraemia in a setting with low vancomycin use. METHODS: We designed a retrospective study focused on episodes of bacteremia due to MRSA diagnosed from January 2010 through December 2015. Main outcomes measures were 30-day mortality and treatment failure. A multivariate logistic regression analysis was used to identify variables associated with patient mortality and treatment outcomes...
March 27, 2018: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/29512028/essentials-in-the-management-of-s-aureus-bloodstream-infection
#5
REVIEW
N Jung, S Rieg
AIMS: Staphylococcus aureus bloodstream infection is one of the most common serious bacterial infections worldwide. It represents a heterogenous clinical entity with a high risk of metastatic complications and a high in-hospital mortality ranging between 20 and 30%. The outcome can be improved by optimised diagnostic and therapeutic management. Thus, our minireview should provide important and often missed pieces of information in the management of S. aureus bloodstream infection. METHODS: We describe the essentials in the management of S...
March 6, 2018: Infection
https://www.readbyqxmd.com/read/29505620/the-ratio-of-pre-dialysis-vancomycin-trough-serum-concentration-to-minimum-inhibitory-concentration-is-associated-with-treatment-outcomes-in-methicillin-resistant-staphylococcus-aureus-bacteremia
#6
Chien-Fang Fu, Jiun-Da Huang, Jann-Tay Wang, Shu-Wen Lin, Chien-Chih Wu
BACKGROUND: Vancomycin is a standard treatment for methicillin-resistant Staphylococcus aureus (MRSA) bacteremia, and its efficacy is closely linked to the recommended serum trough concentration of 15-20 mg/L. However, it is unknown how the pre-dialysis trough serum concentration (Cpre-HD) correlates with MRSA eradication in renal failure patients undergoing intermittent hemodialysis (HD). OBJECTIVE: To evaluate the relationship between Cpre-HD and the treatment outcomes in this population...
2018: PloS One
https://www.readbyqxmd.com/read/29470836/role-of-vancomycin-minimum-inhibitory-concentrations-by-modified-population-analysis-profile-method-and-clinical-outcomes-in-high-inoculum-methicillin-resistant-staphylococcus-aureus-infections
#7
Trang D Trinh, Evan J Zasowski, Kimberly C Claeys, Anthony M Casapao, Matthew Compton, Abdalhamid Lagnf, Shravya D Kidambi, Donald P Levine, Michael J Rybak
INTRODUCTION: Vancomycin remains the standard of care for invasive methicillin-resistant Staphylococcus aureus (MRSA) infections. Treatment failures from heteroresistant vancomycin-intermediate subpopulations (hVISA) are challenging to detect. Minimum inhibitory concentrations (MIC) identified by modified population analysis profile (PAP) is an alternative testing method. The aim of this study was to evaluate the role of PAP MIC on vancomycin failures in two high inoculum infections: MRSA infective endocarditis and pneumonia...
March 2018: Infectious Diseases and Therapy
https://www.readbyqxmd.com/read/29454228/obturator-internus-muscle-abscess-caused-by-methicillin-resistant-staphylococcus-aureus-in-an-adult-a-case-report
#8
Akinori Maeda, Isaku Saku, Shotaro Kanda, Kazuo Saita, Toru Akiyama
INTRODUCTION: Obturator internus muscle (OIM) abscess is a rare condition, usually affecting children after trauma or muscular effort. Blood cultures always yield positive findings, with Staphylococcus aureus being the most common culprit. There are few reports in adults. PRESENTATION OF CASE: We report a case of OIM abscess in an adult. A 24-year-old male was admitted to our hospital because of right hip pain and fever. He was diagnosed with OIM abscess, and methicillin-resistant Staphylococcus aureus (MRSA) was detected on bacterial examination...
2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29418054/evaluation-of-treatment-outcomes-of-patients-with-mrsa-bacteremia-following-antimicrobial-stewardship-programs-with-pharmacist-intervention
#9
Kengo Ohashi, Tomoko Matsuoka, Yasutaka Shinoda, Yasuyuki Fukami, Joe Shindoh, Tetsuya Yagi, Tomoaki Yoshimura, Tadashi Sugiyama
BACKGROUND: Methicillin-resistant Staphylococcus aureus bacteremia (MRSA-B) is associated with high mortality and implementing an appropriate antimicrobial stewardship (AS) program with treatment intervention is essential. The aim of this study was to evaluate the impact of AS with pharmacist intervention on patients with MRSA-B. METHODS: Patients who were diagnosed with MRSA-B between January 2012 and April 2013 were defined as the pre-intervention group, while those diagnosed between May 2013 and December 2015 were defined as the intervention group (ie, AS with pharmacist intervention)...
March 2018: International Journal of Clinical Practice
https://www.readbyqxmd.com/read/29400119/morbidity-mortality-and-management-of-methicillin-resistant-s-aureus-bacteremia-in-the-usa-update-on-antibacterial-choices-and-understanding
#10
REVIEW
Jessica K Ortwine, Kavita Bhavan
Methicillin-resistant Staphylococcus aureus (MRSA) bacteremia is associated with significant healthcare costs, morbidity, and mortality in the United States. Complications of MRSA bacteremia include infective endocarditis, osteomyelitis, and sepsis, all of which are difficult to treat. Time to effective therapy and antibacterial choice greatly affect patient outcomes. Vancomycin and daptomycin remain first-line therapies; however, reports of vancomycin-associated treatment failure and reduced daptomycin susceptibility highlight the need to define alternative strategies for MRSA bacteremia treatment...
April 2018: Hospital Practice (Minneapolis)
https://www.readbyqxmd.com/read/29380676/the-current-role-of-glycopeptides-in-the-treatment-of-methicillin-resistant-staphylococcus-aureus-mrsa-infections-in-not-neutropenic-adults-the-viewpoint-of-a-group-of-italian-experts
#11
Ercole Concia, Claudio Viscoli, Valerio Del Bono, Maddalena Giannella, Matteo Bassetti, Giuseppe Francesco De Rosa, Emanuele Durante Mangoni, Silvano Esposito, Massimo Giusti, Paolo Grossi, Francesco Menichetti, Federico Pea, Nicola Petrosillo, Mario Tumbarello, Stefania Stefani, Mario Venditti, Pierluigi Viale
Staphylococcus aureus is still an important problem in clinical and therapeutic area, worldwide. In Italy, in recent years, methicillin resistance remained stable, yet considerably high, the percentage of strains of MRSA being around 40%. It was deemed interesting and timely to carry out a consensus conference using the RAND/UCLA method to collect the opinion of a group of experts in infectious diseases on the role of glycopeptides in the management of MRSA infections within several clinical scenarios and namely in pneumonia, bacteremia and endocarditis, joint replacement infections, skin and soft tissue infections, diabetic foot, abdominal infections and central nervous system infections...
January 30, 2018: Journal of Chemotherapy
https://www.readbyqxmd.com/read/29298323/implementation-of-global-antimicrobial-resistance-surveillance-system-glass-in-patients-with-bacteremia
#12
Rujipas Sirijatuphat, Kantarida Sripanidkulchai, Adhiratha Boonyasiri, Pinyo Rattanaumpawan, Orawan Supapueng, Pattarachai Kiratisin, Visanu Thamlikitkul
The global antimicrobial resistance surveillance system (GLASS) was launched by the World Health Organization (WHO) in 2015. GLASS is a surveillance system for clinical specimens that are sent to microbiology laboratory for clinical purposes. The unique feature of GLASS is that clinical data is combined with microbiological data, and deduplication of the microbiological results is performed. The objective of the study was to determine feasibility and benefit of GLASS for surveillance of blood culture specimens...
2018: PloS One
https://www.readbyqxmd.com/read/29235661/association-of-higher-daptomycin-dose-7-mg-kg-or-greater-with-improved-survival-in-patients-with-methicillin-resistant-staphylococcus-aureus-bacteremia
#13
Tristan T Timbrook, Aisling R Caffrey, Megan K Luther, Vrishali Lopes, Kerry L LaPlante
STUDY OBJECTIVE: Current guidelines recommend higher daptomycin doses than the daptomycin label dose of 6 mg/kg for methicillin-resistant Staphylococcus aureus (MRSA) bacteremia; however, the evidence supporting this recommendation is from in vitro and case series studies. This study evaluated the comparative effectiveness of the daptomycin label dose versus higher daptomycin doses in patients with MRSA bacteremia. DESIGN: Retrospective national cohort study. SETTING: Veterans Affairs medical centers...
February 2018: Pharmacotherapy
https://www.readbyqxmd.com/read/29222405/multiple-weekly-dalbavancin-dosing-for-the-treatment-of-native-vertebral-osteomyelitis-caused-by-methicillin-resistant-staphylococcus-aureus-a-case-report
#14
Thamer A Almangour, Valerie Fletcher, Mohammed Alessa, Abdullah A Alhifany, Deanne Tabb
BACKGROUND Native vertebral osteomyelitis (NVO) is a common form of hematogenous osteomyelitis, with Staphylococcus aureus (S. aureus) being the most commonly isolated organism. Dalbavancin is approved by the US Food and Drug Administration (FDA) for the treatment of acute bacterial skin and skin structure infections (ABSSSI) and has a sufficiently promising pharmacokinetic and pharmacodynamic profile to be considered for the treatment of vertebral osteomyelitis. We describe here what is probably the first reported case of using multiple weekly dalbavancin to treat a complicated methicillin-resistant Staphylococcus aureus (MRSA) bacteremia and vertebral osteomyelitis...
December 9, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/29203479/host-pathogen-treatment-triad-host-factors-matter-most-in-methicillin-resistant-staphylococcus-aureus-bacteremia-outcomes
#15
M Cristina Vazquez Guillamet, Rodrigo Vazquez, Benjamin Deaton, Jenny Shroba, Laia Vazquez, Renee-Claude Mercier
Previous studies have separately emphasized the importance of host, pathogen, and treatment characteristics in determining short-term or in-hospital mortality rates for patients with methicillin-resistant Staphylococcus aureus (MRSA) bloodstream infections. Less is known about the relative importance of these factors and their interactions in determining short-, medium-, and long-term mortality rates. This is an observational cohort study in which data for all patients admitted to the University of New Mexico (UNM) Health Sciences Center (HSC) between July 2002 and August 2013 with MRSA-positive blood cultures were recorded...
February 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29180523/efficacy-of-novel-antistaphylococcal-ectolysin-p128-in-a-rat-model-of-methicillin-resistant-staphylococcus-aureus-bacteremia
#16
Shankaramurthy Channabasappa, Murali Durgaiah, Ravisha Chikkamadaiah, Senthil Kumar, Amruta Joshi, Bharathi Sriram
Staphylococcus aureus causes systemic infections with high morbidity and mortality, and the emergence of drug-resistant strains is a rapidly growing clinical concern. Novel therapeutic agents are required to tackle S. aureus infections. P128 is a bacteriophage-derived chimeric ectolysin with potent and rapid bactericidal activity against S. aureus In the present study, the efficacy of P128 was evaluated in a newly developed rat model of S. aureus bacteremia. Prior to in vivo testing, P128 was shown to be stable in whole blood by incubation in rat blood for up to 6 h and testing its bactericidal activity against the methicillin-resistant S...
February 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29169153/optimal-trough-concentration-of-teicoplanin-in-febrile-neutropenic-patients-with-hematological-malignancy
#17
Yuhki Sato, Kazufumi Hiramatsu, Yosuke Suzuki, Ryota Tanaka, Tetsuya Kaneko, Ko Nonoshita, Masao Ogata, Jun-Ichi Kadota, Hiroki Itoh
BACKGROUND: Teicoplanin is a glycopeptide antibiotic currently used for the treatment of methicillin-resistant Staphylococcus aureus. The need for therapeutic drug monitoring of teicoplanin has been increasingly highlighted as important. It is generally accepted that whereas a plasma trough concentration (Cmin) of ≥10 mg/L is appropriate for the majority of infections, it should exceed 20 mg/L for severe infections. The target Cmin of teicoplanin in patients with febrile neutropenia (FN) has not been reported...
2018: Chemotherapy
https://www.readbyqxmd.com/read/29163457/the-agr-quorum-sensing-system-represses-persister-formation-through-regulation-of-phenol-soluble-modulins-in-staphylococcus-aureus
#18
Tao Xu, Xu-Yang Wang, Peng Cui, Yu-Meng Zhang, Wen-Hong Zhang, Ying Zhang
The opportunistic pathogen Staphylococcus aureus has become an increasing threat to public health. While the Agr quorum sensing (QS) system is a master regulator of S. aureus virulence, its dysfunction has been frequently reported to promote bacteremia and mortality in clinical infections. Here we show that the Agr system is involved in persister formation in S. aureus . Mutation of either agrCA or agrD but not RNAIII resulted in increased persister formation of stationary phase cultures. RNA-seq analysis showed that in stationary phase AgrCA/AgrD and RNAIII mutants showed consistent up-regulation of virulence associated genes ( lip and splE , etc...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29153470/impact-of-a-pharmacist-driven-care-package-on-staphylococcus-aureus-bacteremia-management-in-a-large-community-healthcare-network-a-propensity-score-matched-quasi-experimental-study
#19
Jordan R Smith, Jeremy J Frens, Cynthia B Snider, Kimberly C Claeys
OBJECTIVES: Staphylococcus aureus bacteremia (SAB) is an important cause of morbidity and mortality. Suboptimal treatment has been associated with poor patient outcomes. Our antimicrobial stewardship program (ASP) evaluated SAB management based on predefined performance measures both prior to and after instituting a "care package" intervention led by clinical pharmacists and infectious diseases physicians. The primary outcome included a 4-point "optimal care score" (OCS) consisting of targeted antibiotic therapy within 24hours, repeating blood cultures, antibiotic duration assessment, and appropriate duration of therapy...
January 2018: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/29137718/telavancin-for-the-treatment-of-methicillin-resistant-staphylococcus-aureus-bone-and-joint-infections
#20
Julie Harting, Francisco Fernandez, Rob Kelley, Tim Wiemken, Paula Peyrani, Julio Ramirez
This retrospective, case series describes our experience with the use of telavancin in patients with methicillin-resistant Staphylococcus aureus (MRSA) osteomyelitis and prosthetic joint infection. The primary objectives were clinical outcomes and adverse events (AEs), and a secondary outcome described microbiological susceptibility. Fourteen patients were enrolled. Median duration of therapy was 58 days, and four patients had concurrent bacteremia. End-of-treatment outcomes were available in 78% of patients, with a clinical success rate of 91%...
December 2017: Diagnostic Microbiology and Infectious Disease
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