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mrsa and bacteremia

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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/29765236/methicillin-resistant-staphylococcus-aureus-bacteremia-among-liver-transplant-recipients-epidemiology-and-associated-risk-factors-for-morbidity-and-mortality
#2
REVIEW
Taohua Liu, Yuezhong Zhang, Qiquan Wan
Bacteremia due to Staphylococcus aureus , especially methicillin-resistant S. aureus (MRSA), complicates the clinical course of liver transplantation and is associated with high morbidity and mortality. Intravascular catheters had been reported to be the most frequent source of MRSA bacteremia. Among bacteremic liver recipients, 26.3%-100% of S. aureus were MRSA. Previous studies identified pre-transplant and post-transplant acquired S. aureus carriage, greater severity of liver disease, hepatocellular carcinoma and infection with immuno-modulatory viruses as predictors of S...
2018: Infection and Drug Resistance
https://www.readbyqxmd.com/read/29761760/-staphylococcus-aureus-bacteremia-incidence-and-methicillin-resistance-in-rural-thailand-2006-2014
#3
Devan Jaganath, Possawat Jorakate, Sirirat Makprasert, Ornuma Sangwichian, Thantapat Akarachotpong, Somsak Thamthitiwat, Supphachoke Khemla, Triveni Defries, Henry C Baggett, Toni Whistler, Christopher J Gregory, Julia Rhodes
Staphylococcus aureus is a common cause of bloodstream infection and methicillin-resistant S. aureus (MRSA) is a growing threat worldwide. We evaluated the incidence rate of S. aureus bacteremia (SAB) and MRSA from population-based surveillance in all hospitals from two Thai provinces. Infections were classified as community-onset (CO) when blood cultures were obtained ≤ 2 days after hospital admission and as hospital-onset (HO) thereafter. The incidence rate of HO-SAB could only be calculated for 2009-2014 when hospitalization denominator data were available...
May 14, 2018: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29667110/gender-affects-prognosis-of-methicillin-resistant-staphylococcus-aureus-bacteremia-differently-depending-on-the-severity-of-underlying-disease
#4
Chang Kyung Kang, Yee Gyung Kwak, Youngmi Park, Kyoung-Ho Song, Eu Suk Kim, Sook-In Jung, Kyung-Hwa Park, Wan Beom Park, Nam Joong Kim, Young Keun Kim, Hee-Chang Jang, Shinwon Lee, Jae Hyun Jeon, Ki Tae Kwon, Chung-Jong Kim, Yeon-Sook Kim, Hong Bin Kim
We aimed to elucidate the potential impact of gender on prognosis of Staphylococcus aureus bacteremia (SAB). We analyzed SAB cases prospectively collected over an 8-year period at 11 hospitals in Korea. SAB-related mortality was pre-defined as a death within 30 days from the onset of SAB without other apparent cause of death. The effect of gender on SAB-related mortality was examined in the entire cohort and in subgroups stratified according to methicillin resistance and Charlson's comorbidity-weighted index (CCWI) score...
April 17, 2018: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/29664994/predictors-of-mortality-with-staphylococcus-aureus-bacteremia-in-elderly-adults
#5
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
#6
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/29619261/septic-pulmonary-emboli-and-renal-abscess-caused-by-staphylococcus-aureus-in-an-hiv-infected-patient
#7
Isaí Medina-Piñón, Alan Ledif Reyes-Mondragón, Michel Fernando Martínez-Reséndez, Adrián Camacho-Ortiz
Staphylococcus aureus is a common cause of bacteremia in the general population and can lead to serious metastatic infection particularly in immunocompromised persons. However, prompt diagnosis and management can result in favorable outcomes. In the following case report, the clinical course of an HIV-infected man is presented; he developed bloodstream infection (BSI) and associated complications: septic pulmonary embolism, right renal abscess, and ipsilateral renal vein thrombosis. Methicillin-resistant Staphylococcus aureus (MRSA) was identified as the cause of sepsis and successfully treated with surgery and antimicrobials...
2018: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/29601996/vancomycin-and-daptomycin-minimum-inhibitory-concentration-as-a-predictor-of-methicillin-resistant-staphylococcus-aureus-bacteremia-outcome
#8
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/29535697/the-changing-pattern-of-population-structure-of-staphylococcus-aureus-from-bacteremia-in-china-from-2013-to-2016-st239-030-mrsa-replaced-by-st59-t437
#9
Shuguang Li, Shijun Sun, Chentao Yang, Hongbin Chen, Yuyao Yin, Henan Li, Chunjiang Zhao, Hui Wang
To investigate the epidemiology and genetic structure of Staphylococcus aureus bacteremia in China, a total of 416 isolates from 22 teaching hospitals in 12 cities from 2013 and 2016 were characterized by antibiogram analysis, multilocus sequence typing (MLST), spa typing and staphylococcal cassette chromosome mec (SCC mec ) typing. The predominant meticillin-susceptible (MSSA) genotypes in 2013 were ST188 (19.1%), ST7 (8.7%), and ST398 (7.8%), respectively, and they continued to be the main genotypes in 2016...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29530845/association-of-vancomycin-mic-and-molecular-characteristics-with-clinical-outcomes-in-methicillin-susceptible-staphylococcus-aureus-acute-hematogenous-osteoarticular-infections-in-children
#10
Eric Y Kok, Jesus G Vallejo, Lauren M Sommer, Louie Rosas, Sheldon L Kaplan, Kristina G Hulten, J Chase McNeil
Strains of methicillin-resistant Staphylococcus aureus (MRSA), particularly those belonging to the USA300 pulsotype, have been well described to cause severe osteoarticular infections (OAIs). A vancomycin MIC of ≥1.5 μg/ml has been demonstrated to contribute to disease severity in adults with MRSA and even methicillin-susceptible S. aureus (MSSA) bacteremia. Little data exist describing the outcomes of MSSA OAIs in terms of molecular characteristics and vancomycin MIC. All patients/isolates were chosen from a surveillance study at Texas Children's Hospital (TCH)...
May 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29512028/essentials-in-the-management-of-s-aureus-bloodstream-infection
#11
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/29508663/daptomycin-and-combination-daptomycin-ceftaroline-as-salvage-therapy-for-persistent-methicillin-resistant-staphylococcus-aureus-bacteremia
#12
Nicolas Cortes-Penfield, Nora T Oliver, Andrew Hunter, Maria Rodriguez-Barradas
No abstract text is available yet for this article.
March 6, 2018: Infectious Diseases
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
#13
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
#14
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/29457569/hospital-onset-mrsa-bacteremia-rates-are-significantly-correlated-with-sociodemographic-factors-a-step-toward-risk-adjustment
#15
Joshua T Freeman, Matthew R Blakiston, Deverick J Anderson
The correlations between census-derived sociodemographic variables and hospital-onset methicillin-resistant Staphylococcus aureus bacteremia (HO-MRSAB) rates were examined at the US state level. On multivariable analysis, only percent African American remained statistically significant. This finding highlights an important disparity and suggests that risk adjustment is needed when comparing HO-MRSAB rates among US states. Infect Control Hosp Epidemiol 2018;39:479-481.
April 2018: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/29454228/obturator-internus-muscle-abscess-caused-by-methicillin-resistant-staphylococcus-aureus-in-an-adult-a-case-report
#16
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/29429428/hospital-onset-staphylococcus-aureus-bacteremia-is-a-better-measure-than-mrsa-bacteremia-for-assessing-infection-prevention-evaluation-of-50-us-hospitals
#17
Mohamad G Fakih, Rebecca Battjes, Lisa Sturm, Lindsey Jones, Clariecia Groves, Angelo Bufalino, Ann Hendrich
Of 500 hospital-onset Staphylococcus aureus bacteremia events (58% methicillin-susceptible S. aureus [MSSA]; 42% methicillin-resistant S. aureus [MRSA]), we found no significant differences in S. aureus bacteremia rates between medium-sized and large hospitals. However, the proportion of S. aureus bacteremia caused by MSSA was greater in medium-sized hospitals and did not correlate with MRSA bacteremia. Infect Control Hosp Epidemiol 2018;39:476-478.
April 2018: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/29428976/spa-type-distribution-in-mrsa-and-mssa-bacteremias-and-association-of-spa-clonal-complexes-with-the-clinical-characteristics-of-bacteremia
#18
Elina Jokinen, Laura Lindholm, Reetta Huttunen, Heini Huhtala, Risto Vuento, Jaana Vuopio, Jaana Syrjänen
The genetic distribution of invasive methicillin-susceptible (MSSA) and resistant S. aureus (MRSA) strains has to be addressed in order to target infection control strategies. A large MRSA epidemic caused by a certain MRSA strain (spa type 067) broke out in 2001 in our health district. We wanted to investigate the current spa type distribution in MRSA and MSSA bacteremias and assess the potential association of spa clonal complexes (spaCC) with the clinical characteristics of S. aureus bacteremia. One hundred nine invasive MRSA isolates and 353 invasive MSSA isolates were spa typed and grouped into clonal complexes (spaCC)...
May 2018: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/29423995/gold-nanoclusters-for-targeting-methicillin-resistant-staphylococcus-aureus-in-vivo
#19
Yangzhouyun Xie, Yong Liu, Junchuan Yang, Yuan Liu, Fupin Hu, Kui Zhu, Xingyu Jiang
Widespread multidrug resistance caused by the abuse of antibiotics calls for novel strategies and materials. Gold nanoclusters (AuNCs) are scarcely explored for combating multidrug-resistant (MDR) bacteria in vivo. We herein synthesized a novel class of AuNCs, namely quaternary ammonium (QA) capped AuNCs (QA-AuNCs) as potent antibiotics selectively targeting MDR Gram-positive bacteria, including methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococci (VRE), in vivo. QA-AuNCs kill bacteria through a combined physicochemical mechanism, and show excellent therapeutic effects in both a skin infection model and a bacteremia model induced by MRSA...
April 3, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29421224/methicillin-resistant-staphylococcus-aureus-mrsa-bacteremia-correlations-between-clinical-phenotypic-genotypic-characteristics-and-mortality-in-a-tertiary-teaching-hospital-in-malaysia
#20
Pik San Sit, Cindy Shuan Ju Teh, Nuryana Idris, Sasheela Ponnampalavanar
Methicillin-resistant Staphylococcus aureus (MRSA) bacteremia is a serious infection that can result in significant morbidity and mortality. A retrospective cohort study was conducted to determine the predictors of mortality in patient with MRSA bacteremia correlating with clinical, phenotypic and genotypic characteristics of the relevant strains. Most of the bacteremia cases were healthcare-associated (P < 0.0001). Older age (P < 0.0001) and comorbidities (diabetes mellitus, hypertension and chronic kidney disease) were identified as the risk factors for MRSA bacteremia...
April 2018: Infection, Genetics and Evolution
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