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Bloodstream infection detection

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https://www.readbyqxmd.com/read/28327806/invasive-fungal-infection-in-patients-with-hematologic-disorders-in-a-brazilian-tertiary-care-hospital
#1
Milton Camplesi, Hildene Meneses Silva, Adriano Moraes Arantes, Carolina Rodrigues Costa, Fábio Silvestre Ataides, Thaisa Cristina Silva, Maysa de Paula Costa Dos Reis, Maria do Rosário Rodrigues Silva
INTRODUCTION: Invasive fungal infections (IFIs) are an important complication in immunocompromised individuals, particularly neutropenic patients with hematological malignancies. In this study, we aimed to verify the epidemiology and diagnosis of IFIs in patients with hematologic problems at a tertiary hospital in Goiânia-GO, Brazil. METHODS: Data from 117 patients, involving 19 cases of IFIs, were collected. The collected data included diagnosis methods, demographics, clinical characteristics, and in vitro susceptibility to different antifungal agents...
January 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/28293420/candidemia-in-a-major-regional-tertiary-referral-hospital-epidemiology-practice-patterns-and-outcomes
#2
Jocelyn Qi-Min Teo, Samuel Rocky Candra, Shannon Jing-Yi Lee, Shannon Yu-Hng Chia, Hui Leck, Ai-Ling Tan, Hui-Peng Neo, Kenneth Wei-Liang Leow, Yiying Cai, Rachel Pui-Lai Ee, Tze-Peng Lim, Winnie Lee, Andrea Lay-Hoon Kwa
BACKGROUND: Candidemia is a common cause of nosocomial bloodstream infections, resulting in high morbidity and mortality. This study was conducted to describe the epidemiology, species distribution, antifungal susceptibility patterns and outcomes of candidemia in a large regional tertiary referral hospital. METHODS: A retrospective surveillance study of patients with candidemia was conducted at Singapore General Hospital between July 2012 and December 2015. In addition, incidence densities and species distribution of candidemia episodes were analysed from 2008 to 2015...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28290130/the-choosing-wisely-initiative-in-infectious-diseases
#3
REVIEW
Clara Lehmann, Reinhard Berner, Johannes R Bogner, Oliver A Cornely, Katja de With, Susanne Herold, Winfried V Kern, Sebastian Lemmen, Mathias W Pletz, Bernhard Ruf, Bernd Salzberger, Hans Jürgen Stellbrink, Norbert Suttorp, Andrew J Ullmann, Gerd Fätkenheuer, Norma Jung
OBJECTIVE: "Choosing Wisely" is a growing international campaign aiming at practice changes to improve patient health and safety by both, conduct of essential and avoidance of unnecessary diagnostic, preventive and therapeutic procedures. The goal is to create an easily recognizable and distributable list ("Choosing Wisely items") that addresses common over- and underuse in the management of infectious diseases. METHODS: The German Society of Infectious Diseases (DGI) participates in the campaign "Klug Entscheiden" by the German Society of Internal Medicine...
March 13, 2017: Infection
https://www.readbyqxmd.com/read/28284196/burden-of-bloodstream-infection-in-an-area-of-mid-norway-2002-2013-a-prospective-population-based-observational-study
#4
Arne Mehl, Bjørn Olav Åsvold, Stian Lydersen, Julie Paulsen, Erik Solligård, Jan Kristian Damås, Stig Harthug, Tom-Harald Edna
BACKGROUND: Studies from several countries indicate that the incidence and mortality of bloodstream infection (BSI) have been increasing over time. METHODS: We studied the burden of disease and death related to BSI in a defined geographical area of Mid-Norway, where BSI episodes were prospectively recorded by the same microbiological department during 12 consecutive years. Death from BSI was defined as death within 30 days of BSI detection. Age and sex standardized incidence and mortality rates and case fatality rates were calculated...
March 11, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28280486/the-resistance-phenotype-and-molecular-epidemiology-of-klebsiella-pneumoniae-in-bloodstream-infections-in-shanghai-china-2012-2015
#5
Shu-Zhen Xiao, Su Wang, Wen-Man Wu, Sheng-Yuan Zhao, Fei-Fei Gu, Yu-Xing Ni, Xiao-Kui Guo, Jie-Ming Qu, Li-Zhong Han
Klebsiella pneumoniae (K.pneumoniae) is a common nosocomial pathogen causing bloodstream infections. Antibiotic susceptibility surveillance and molecular characterization will facilitate prevention and management of K. pneumoniae bloodstream infections. K. pneumoniae isolates causing bloodstream infections were consecutively collected between January 2012 and December 2015 in Shanghai. Eighty isolates (20 per year) were randomly selected and enrolled in this study. Drug susceptibility were determined by the disk diffusion method...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28280485/characterization-of-the-prophage-repertoire-of-african-salmonella-typhimurium-st313-reveals-high-levels-of-spontaneous-induction-of-novel-phage-btp1
#6
Siân V Owen, Nicolas Wenner, Rocío Canals, Angela Makumi, Disa L Hammarlöf, Melita A Gordon, Abram Aertsen, Nicholas A Feasey, Jay C D Hinton
In the past 30 years, Salmonella bloodstream infections have become a significant health problem in sub-Saharan Africa and are responsible for the deaths of an estimated 390,000 people each year. The disease is predominantly caused by a recently described sequence type of Salmonella Typhimurium: ST313, which has a distinctive set of prophage sequences. We have thoroughly characterized the ST313-associated prophages both genetically and experimentally. ST313 representative strain D23580 contains five full-length prophages: BTP1, Gifsy-2(D23580), ST64B(D23580), Gifsy-1(D23580), and BTP5...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28268063/human-escherichia-coli-isolates-from-hemocultures-septicemia-linked-to-urogenital-tract-infections-is-caused-by-isolates-harboring-more-virulence-genes-than-bacteraemia-linked-to-other-conditions
#7
Lenka Micenková, Alžbeta Beňová, Lucia Frankovičová, Juraj Bosák, Martin Vrba, Alena Ševčíková, Marta Kmeťová, David Šmajs
Escherichia coli is the most common cause of bloodstream infections and community-acquired sepsis. The main aim of this study was to determine virulence characteristics of E. coli isolates from hemocultures of patients with a primary disease of urogenital tract, digestive system, a neoplastic blood disease, or other conditions. Results from a set of 314 E. coli isolates from hemocultures were compared to data from a previously published analysis of 1283 fecal commensal E. coli isolates. Genetic profiling of the 314 E...
February 27, 2017: International Journal of Medical Microbiology: IJMM
https://www.readbyqxmd.com/read/28265408/catheter-related-thrombosis-diagnosed-by-computed-tomography
#8
Yohei Yamauchi, Akira Baba, Yumi Okuyama
Catheter-related bloodstream infection can be detected with CT. Although it is not mandatory for its diagnosis, it is strong evidence as a cause of fever if detected incidentally.
March 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28246373/serological-diagnosis-of-cystic-echinococcosis-in-cattle
#9
Aitbay K Bulashev, Zhanbolat A Suranshiev, Orken S Akibekov, Zhanara Zh Akanova, Gulmira A Abulgazimova
An IgM murine monoclonal antibody (MAb) was obtained against the excretory-secretory antigen (ES-Ag) of in vitro reared protoscoleces of Echinococcus granulosus (Batsch, 1786). Western blotting revealed that the MAb recognised a 20.6 kDa protein of this ES-Ag. The MAb was used in sandwich enzyme-linked immunosorbent assay (s-ELISA) for selective sensitisation of the solid phase with the protoscolex-specific protein from its ES-Ag and somatic antigen (S-Ag) to examine serum samples of 108 cows from a cystic echinococcosis (CE) endemic area for specific antibodies and to compare the results with those from necropsies and an indirect ELISA (i-ELISA)...
February 17, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/28224115/the-escherichia-coli-serogroup-o1-and-o2-lipopolysaccharides-are-encoded-by-multiple-o-antigen-gene-clusters
#10
Sabine Delannoy, Lothar Beutin, Patricia Mariani-Kurkdjian, Aubin Fleiss, Stéphane Bonacorsi, Patrick Fach
Escherichia coli strains belonging to serogroups O1 and O2 are frequently associated with human infections, especially extra-intestinal infections such as bloodstream infections or urinary tract infections. These strains can be associated with a large array of flagellar antigens. Because of their frequency and clinical importance, a reliable detection of E. coli O1 and O2 strains and also the frequently associated K1 capsule is important for diagnosis and source attribution of E. coli infections in humans and animals...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28222125/streptococcus-sanguinis-induces-neutrophil-cell-death-by-production-of-hydrogen-peroxide
#11
Ryuichi Sumioka, Masanobu Nakata, Nobuo Okahashi, Yixuan Li, Satoshi Wada, Masaya Yamaguchi, Tomoko Sumitomo, Mikako Hayashi, Shigetada Kawabata
Streptococcus is the dominant bacterial genus in the human oral cavity and a leading cause of infective endocarditis. Streptococcus sanguinis belongs to the mitis group of streptococci and produces hydrogen peroxide (H2O2) by the action of SpxB, a pyruvate oxidase. In this study, we investigated the involvement of SpxB in survival of S. sanguinis in human blood and whether bacterial H2O2 exhibits cytotoxicity against human neutrophils. Results of a bactericidal test with human whole blood revealed that the spxB mutation in S...
2017: PloS One
https://www.readbyqxmd.com/read/28209197/accuracy-and-generalizability-of-using-automated-methods-for-identifying-adverse-events-from-electronic-health-record-data-a-validation-study-protocol
#12
Christian M Rochefort, David L Buckeridge, Andréanne Tanguay, Alain Biron, Frédérick D'Aragon, Shengrui Wang, Benoit Gallix, Louis Valiquette, Li-Anne Audet, Todd C Lee, Dev Jayaraman, Bruno Petrucci, Patricia Lefebvre
BACKGROUND: Adverse events (AEs) in acute care hospitals are frequent and associated with significant morbidity, mortality, and costs. Measuring AEs is necessary for quality improvement and benchmarking purposes, but current detection methods lack in accuracy, efficiency, and generalizability. The growing availability of electronic health records (EHR) and the development of natural language processing techniques for encoding narrative data offer an opportunity to develop potentially better methods...
February 16, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28202886/totally-implantable-central-venous-device-associated-blood-stream-infection-in-elderly-malignant-disease-patients
#13
Yasuo Aota, Yuko Okuda, Tsubasa Watanabe, Keitaro Fujiwara, Itaru Nakamura, Tomohisa Yokoyama, Akihiko Gotoh, Michio Sakurai
AIM: We investigated the rate of bloodstream infections in elderly malignant disease patients whose totally implantable central venous device (CV ports) had been removed for any reason at our hospital. METHODS: We evaluated 22 elderly malignant disease patients who had had their CV ports removed for any reason between May 2014 to April 2015. RESULTS: The patients were 12 males and 10 females between 62 and 86 years of age with a median age of 75...
2017: Nihon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics
https://www.readbyqxmd.com/read/28197349/corynebacterium-striatum-bacteremia-associated-with-a-catheter-related-blood-stream-infection
#14
Ueno Daisuke, Tomohiro Oishi, Kunikazu Yamane, Kihei Terada
A 49-year-old woman visited our emergency department because of exertional dyspnea due to severe left ventricular functional failure. It progressed to disseminated intravascular coagulation and disturbance of consciousness on day 67 of admission. Gram-positive bacilli were detected from two different blood culture samples on day 67 of admission. An API-Coryne test and sequencing (1~615 bp) of the 16S rRNA gene were performed, and the strain was identified as Corynebacterium striatum. The bacterium was detected from the removed central venous catheter tip too, and the patient was diagnosed with catheter-related bloodstream infection by C...
2017: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/28177788/a-fast-and-accurate-method-of-detecting-aleutian-mink-disease-virus-in-blood-and-tissues-of-chronically-infected-mink
#15
A H Farid, P P Rupasinghe
The objective of this study was to assess the sensitivity of the Omni Klentaq-LA DNA polymerase for detecting Aleutian mink disease virus (AMDV) in mink blood and tissues by PCR without DNA extraction. The presence of AMDV DNA was directly tested by Klentaq in the plasma, serum, whole blood, and spleen homogenates of 188 mink 4 and 16 months after inoculation with the virus. Samples from bone marrow, small intestine, liver, lungs, kidneys, and lymph nodes of 20 of the same mink were also tested by Klentaq. DNA was extracted from paired samples of plasma and the aforesaid tissues by a commercial nucleic acid extraction kit (Dynabeads Silane) and tested by PCR...
January 18, 2017: Canadian Journal of Microbiology
https://www.readbyqxmd.com/read/28165916/acute-and-late-bartonella-henselae-murine-model-infection
#16
Marilene Neves da Silva, Gislaine Vieira-Damiani, Marna Elise Ericson, Kalpna Gupta, Amanda Roberta de Almeida, Marina Rovani Drummond, Tania Cristina Benetti Soares, Bruno Grosselli Lania, Rovilson Gilioli, Paulo Eduardo Neves Ferreira Velho
Bartonella spp. are fastidious gram-negative neglected bacilli with worldwide distribution. They are able to cause intraerythrocytic and potentially fatal infection. Cats and dogs are reservoirs of some species of these agents. Blood-sucking arthropods are potential vectors. Our aim was to evaluate the blood, skin, liver, and spleen in BALB/c mice by using molecular tests and confocal microscopy to demonstrate Bartonella henselae infection in the bloodstream and organs after 4 and 21 days of intraperitoneally injected bacterial suspension...
March 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28164570/time-to-detection-comparison-for-a-novel-blood-culture-system-using-simulated-blood-cultures-dltm-versus-bact-alerttm-and-bactectm
#17
Tayfur Demiray, Mehmet Koroglu, Mustafa Altindis
BACKGROUND: Automated blood culture systems are routinely used in microbiology laboratories to isolate bacteria and fungi causing bloodstream infections. A novel automated blood culture system, DL-Bt112TM (DL) was compared with the BACTEC 9050TM (BCT) and BacT/Alert 3DTM (B3D) systems for time-to-detection (TTD) using 10 different clinical bacteria that commonly cause bloodstream infections. METHODS: Simulated blood cultures were used to compare the three automated blood culture systems...
September 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28164485/comparison-of-growth-performance-of-the-bact-alert-virtuo-and-bactec-fx-blood-culture-systems-under-simulated-bloodstream-infection-conditions
#18
Joonhong Park, Seounghwan Han, Soyoung Shin
BACKGROUND: We evaluated growth performance of the BacT/ALERT VIRTUO and the BACTEC FX blood culture (BC) systems based on recovery rate and time to detect microorganisms under simulated bloodstream infection conditions. METHODS: Three expected concentrations of 125, 30, and 5 CFU/mL of eighteen reference microorganisms were diluted with 5 mL blood for adult aerobic/anaerobic culture and with 3 mL for pediatric aerobic culture and inoculated, and each of three BC bottles were loaded into the two BC systems...
January 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28161356/a-retrospective-cross-sectional-quantitative-molecular-approach-in-biological-samples-from-patients-with-syphilis
#19
Miguel Pinto, Minia Antelo, Rita Ferreira, Jacinta Azevedo, Irene Santo, Maria José Borrego, João Paulo Gomes
Syphilis is the sexually transmitted disease caused by Treponema pallidum, a pathogen highly adapted to the human host. As a multistage disease, syphilis presents distinct clinical manifestations that pose different implications for diagnosis. Nevertheless, the inherent factors leading to diverse disease progressions are still unknown. We aimed to assess the association between treponemal loads and dissimilar disease outcomes, to better understand syphilis. We retrospectively analyzed 309 DNA samples distinct anatomic sites associated with particular syphilis manifestations...
March 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28139430/prevalence-of-mcr-1-in-escherichia-coli-and-klebsiella-pneumoniae-recovered-from-bloodstream-infections-in-china-a-multicentre-longitudinal-study
#20
Jingjing Quan, Xi Li, Yan Chen, Yan Jiang, Zhihui Zhou, Huichuan Zhang, Lu Sun, Zhi Ruan, Ye Feng, Murat Akova, Yunsong Yu
BACKGROUND: Polymyxin antibiotics are used as last-resort therapies to treat infections caused by multidrug-resistant Gram-negative bacteria. The plasmid-mediated colistin resistance determinant MCR-1 has been identified in Enterobacteriaceae in China. We did this study to investigate the prevalence of the mcr-1 gene in clinical isolates from patients with bloodstream infections in China. METHODS: Clinical isolates of Escherichia coli and Klebsiella pneumoniae were collected from patients with bloodstream infections at 28 hospitals in China, then screened for colistin resistance by broth microdilution and for the presence of the mcr-1 gene by PCR amplification...
January 27, 2017: Lancet Infectious Diseases
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