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https://www.readbyqxmd.com/read/28087454/an-observational-study-of-phagocytes-and-klebsiella-pneumoniae-relationships-different-behaviors
#1
Elodie Maisonneuve, Estelle Cateau, Marion Delouche, Nathalie Quellard, Marie-Helene Rodier
Klebsiella pneumoniae is a bacterium that can be in relation with free living amoebae like Acanthamoeba castellanii in natural environments such as soil and water. This pathogen, which is responsible for community-acquired pneumonia and for nosocomial infections, also has interactions with host defense mechanisms like macrophages. As it has been shown that A. castellanii shares some traits with macrophages, in particular the ability to phagocyte bacteria, we have studied the uptake and the fate of the bacteria after contact with the two phagocytic cells...
January 10, 2017: Microbes and Infection
https://www.readbyqxmd.com/read/28081233/differences-in-inflammatory-response-induced-by-two-representatives-of-clades-of-the-pandemic-st258-klebsiella-pneumoniae-clonal-lineage-producing-kpc-type-carbapenemases
#2
Giuseppe Castronovo, Ann Maria Clemente, Alberto Antonelli, Marco Maria D'Andrea, Michele Tanturli, Eloisa Perissi, Sara Paccosi, Astrid Parenti, Federico Cozzolino, Gian Maria Rossolini, Maria Gabriella Torcia
ST258-K. pneumoniae (ST258-KP) strains, the most widespread multidrug-resistant hospital-acquired pathogens, belong to at least two clades differing in a 215 Kb genomic region that includes the cluster of capsule genes. To investigate the effects of the different capsular phenotype on host-pathogen interactions, we studied representatives of ST258-KP clades, KKBO-1 and KK207-1, for their ability to activate monocytes and myeloid dendritic cells from human immune competent hosts. The two ST258-KP strains strongly induced the production of inflammatory cytokines...
2017: PloS One
https://www.readbyqxmd.com/read/28079629/duration-of-pneumonia-therapy-and-the-role-of-biomarkers
#3
Katerina Kaziani, Adamantia Sotiriou, George Dimopoulos
PURPOSE OF REVIEW: Increasing antimicrobial resistance is a worldwide phenomenon that is threatening public health. Lower respiratory infections are one of the leading causes of morbidity that contribute to antibiotic consumption and thus the emergence of multidrug-resistant microbial strains. The goal of shortening antibiotic regimens' duration in common bacterial infections has been prioritized by antimicrobial stewardship programs as an action against this problem. RECENT FINDINGS: Data coming from randomized controlled trials, meta-analyses, and systematic reviews support the shortening of antimicrobial regimens in community-acquired, hospital-acquired, and ventilator-associated pneumonia...
January 12, 2017: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/28076309/activation-of-the-tryptophan-serotonin-pathway-is-associated-with-severity-and-predicts-outcomes-in-pneumonia-results-of-a-long-term-cohort-study
#4
Marc A Meier, Manuel Ottiger, Alaadin Vögeli, Christian Steuer, Luca Bernasconi, Robert Thomann, Mirjam Christ-Crain, Christoph Henzen, Claus Hoess, Werner Zimmerli, Andreas Huber, Beat Mueller, Philipp Schuetz
BACKGROUND: As part of the immune defense during infection, an increase in enzyme activity of indoleamine 2,3-dioxygenase (IDO) leads to a breakdown of tryptophan to kynurenine. In previous animal studies, therapeutic antagonism of IDO resulted in reduced sepsis mortality. We investigated the prognostic ability of tryptophan, serotonin, kynurenine and IDO (represented by the ratio of kynurenine/tryptophan) to predict adverse clinical outcomes in patients with community-acquired pneumonia (CAP)...
January 11, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28074126/the-emergence-of-carbapenem-resistant-klebsiella-pneumoniae-in-malaysia-correlation-between-microbiological-trends-with-host-characteristics-and-clinical-factors
#5
Ye-Mun Low, Polly Soo-Xi Yap, Kartini Abdul Jabar, Sasheela Ponnampalavanar, Rina Karunakaran, Rukumani Velayuthan, Chun-Wie Chong, Sazaly Abu Bakar, Mohd Yasim Md Yusof, Cindy Shuan-Ju Teh
BACKGROUND: Carbapenem resistant Enterobacteriaceae is a growing concern worldwide including Malaysia. The emergence of this pathogen is worrying because carbapenem is one of the 'last-line' antibiotics. The main objective of this study was to determine the prevalence of genetic mechanisms and clinical risk factors of carbapenem resistant Klebsiella pneumoniae (K. pneumoniae) in Malaysia. METHODS: In this study, seventeen carbapenem resistant K. pneumoniae strains isolated from a tertiary teaching hospital in 2013 were studied...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28071193/screening-of-esbl-producing-enterobacteriacae-concomitant-with-low-degree-of-transmission-in-intensive-care-and-bone-marrow-transplant-units
#6
Giuseppe Valenza, Monika Schulze, Petra Friedrich, Wulf Schneider-Brachert, Thomas Holzmann, Silke Nickel, Verena Lehner-Reindl, Christiane Höller
BACKGROUND: Extended-spectrum β-lactamase-producing Enterobacteriaceae (ESBL-E) are spreading worldwide in both hospital and community settings. In this study, the molecular epidemiology and the transmission modalities of ESBL-E in intensive care- and bone marrow transplant were investigated. METHODS: All patients included in this study were screened for presence of ESBL-E on admission and weekly. Relevant β-lactamase genes were identified by PCR and sequencing...
January 10, 2017: Infectious Diseases
https://www.readbyqxmd.com/read/28070670/the-impact-of-pneumococcal-conjugate-vaccine-on-community-acquired-pneumonia-hospitalizations-in-children-with-comorbidity
#7
Ellinor Sterky, Rutger Bennet, Ann Lindstrand, Margareta Eriksson, Anna Nilsson
: The burden of community-acquired pneumonia (CAP) in high-income countries is still significant. The introduction of pneumococcal conjugate vaccines (PCV) has reduced the overall need for hospitalization for CAP. However, it is not clear whether children with underlying disease also have benefitted from the PCV immunization programme. Children 0 to <5 years of age hospitalized with CAP and discharged with an ICD-10 code of J13-J18.9 between November 1, 2005, and April 30, 2007 (pre-vaccination period), and November 1, 2010, and April 30, 2012 (post-vaccination period), were eligible for this study...
January 9, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28068956/cost-effectiveness-of-antibiotic-treatment-strategies-for-community-acquired-pneumonia-results-from-a-cluster-randomized-cross-over-trial
#8
Cornelis H van Werkhoven, Douwe F Postma, Marie-Josee J Mangen, Jan Jelrik Oosterheert, Marc J M Bonten
BACKGROUND: To determine the cost-effectiveness of strategies of preferred antibiotic treatment with beta-lactam/macrolide combination or fluoroquinolone monotherapy compared to beta-lactam monotherapy. METHODS: Costs and effects were estimated using data from a cluster-randomized cross-over trial of antibiotic treatment strategies, primarily from the reduced third payer perspective (i.e. hospital admission costs). Cost-minimization analysis (CMA) and cost-effectiveness analysis (CEA) were performed using linear mixed models...
January 10, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28067786/impact-of-air-pollutants-on-outpatient-visits-for-acute-respiratory-outcomes
#9
Ran Li, Ning Jiang, Qichen Liu, Jing Huang, Xinbiao Guo, Fan Liu, Zhancheng Gao
The air pollution in China is a severe problem. The aim of our study was to investigate the impact of air pollutants on acute respiratory outcomes in outpatients. Outpatient data from 2 December 2013 to 1 December 2014 were collected, as well as air pollutant data including ozone (O₃), nitrogen dioxide (NO₂), carbon monoxide (CO), sulfur dioxide (SO₂), and particulate matter (PM2.5 and PM10). We screened six categories of acute respiratory outcomes and analyzed their associations with different air pollutant exposures, including upper respiratory tract infection (URTI), acute bronchitis (AB), community-acquired pneumonia (CAP), acute exacerbation of chronic obstructive pulmonary disease (AECOPD), acute exacerbation of asthma (AE-asthma), and acute exacerbation of bronchiectasis (AEBX)...
January 5, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28067676/severe-community-acquired-pneumonia-optimal-management
#10
Davide Leoni, Jordi Rello
PURPOSE OF REVIEW: Community-acquired pneumonia (CAP) is the leading cause of mortality among infectious diseases. Several efforts have been implemented to achieve better outcomes, but an important proportion of patients continue dying. This review focuses on the newest research on prognostic factors and diagnostics, opening new perspectives in the management of CAP. RECENT FINDINGS: CAP survival improved in recent years despite an increasing incidence of severe presentations...
January 6, 2017: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/28066602/a-novel-surgical-method-for-acquired-non-malignant-complicated-tracheoesophageal-and-bronchial-gastric-stump-fistula-the-double-patch-technique
#11
Guang Yang, Wei-Miao Li, Jin-Bo Zhao, Jian Wang, Yun-Feng Ni, Yong-An Zhou, Yong Han, Xiao-Fei Li, Xiao-Long Yan
BACKGROUND: To manage the acquired benign complicated tracheoesophageal fistula (TEF) and bronchial-gastric stump fistula (BGSF) are clinical technical challenge. The purpose of this study is to retrospectively review a surgical "double patch" technique in treating nonmalignant complicated TEF and BGSF, and then clarify the long-term curative effect of the technique. METHODS: Clinical records of 30 patients with non-malignant complicated TEF and BGSF treated by "double patch" technique in Tangdu Hospital between August 2004 and August 2014, were analyzed and summarized retrospectively...
November 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28065808/bacterial-meningitis-in-alcoholic-patients-a-population-based-prospective-study
#12
Kiril E B van Veen, Matthijs C Brouwer, Arie van der Ende, Diederik van de Beek
OBJECTIVES: To study clinical features and outcome of community-acquired bacterial meningitis in alcoholic patients. METHODS: Patients with a history of alcoholism were selected from our nationwide, prospective cohort on community-acquired bacterial meningitis performed from March 2006 to October 2014. Data on patient history, symptoms and signs on admission, treatment, and outcome were prospectively collected. RESULTS: Of 1359 included episodes, 88 episodes (6%) occurred in 88 alcoholic patients...
January 5, 2017: Journal of Infection
https://www.readbyqxmd.com/read/28064542/antibiotic-treatment-patterns-costs-and-resource-utilization-among-patients-with-community-acquired-pneumonia-a-us-cohort-study
#13
Christopher J Llop, Edward Tuttle, Glenn S Tillotson, Kerry LaPlante, Thomas M File
OBJECTIVES: The current treatment options for patients with community-acquired pneumonia (CAP) often present a trade-off between the potential for treatment failure and safety concerns. We set out to investigate real-world outcomes associated with the use of currently available antimicrobial treatment options for CAP in both the outpatient and inpatient (non-intensive care unit [ICU]) settings. METHODS: This claims-based retrospective study included adult patients diagnosed with CAP and treated with antibiotic therapies, including any oral fluoroquinolone, macrolide, or beta-lactam monotherapy in the outpatient setting, and intravenous (IV) levofloxacin or IV azithromycin/ceftriaxone in the inpatient setting...
January 9, 2017: Hospital Practice (Minneapolis)
https://www.readbyqxmd.com/read/28058593/ceftaroline-fosamil-for-community-acquired-pneumonia-and-skin-and-skin-structure-infections-a-systematic-review
#14
Maguy Saffouh El Hajj, Ricky D Turgeon, Kyle John Wilby
Background Ceftaroline is a parentally administered cephalosporin that has an in vitro expanded spectrum of activity compared with other cephalosporins yet data is conflicting regarding its place in therapy. Aim of the Review To compare the efficacy and safety of ceftaroline against standard antibiotic regimens for community-acquired pneumonia (CAP) and complicated skin and skin structure infections (cSSSIs). Method The databases of MEDLINE, EBSCO, and Embase were searched up to June 2016. Manual review of references was completed and experts in the field were contacted for unpublished data...
January 5, 2017: International Journal of Clinical Pharmacy
https://www.readbyqxmd.com/read/28057814/increased-serum-interleukin-10-but-not-interleukin-4-level-in-children-with-mycoplasma-pneumoniae-pneumonia
#15
Biljana Medjo, Marina Atanaskovic-Markovic, Dimitrije Nikolic, Snezana Radic, Ivana Lazarevic, Ivana Cirkovic, Slobodanka Djukic
BACKGROUND: Mycoplasma pneumoniae (MP) is a common cause of community-acquired pneumonia in children, and it has been associated with wheezing. The aim of this study was to examine the serum level of interleukin (IL)-4 and IL-10 in children with Mycoplasma pneumoniae pneumonia (MPP) and to analyse them in relation to the presence of wheezing. METHODS: The study included 166 children with radiologically confirmed pneumonia. MP infection was confirmed by enzyme-linked immunosorbent assay (ELISA) serum MP-IgM and MP-IgG test and throat swab MP DNA with real-time polymerase chain reaction...
January 5, 2017: Journal of Tropical Pediatrics
https://www.readbyqxmd.com/read/28057653/hospitalisation-with-community-acquired-pneumonia-among-patients-with-type-2-diabetes-an-observational-population-based-study-in-spain-from-2004-to-2013
#16
Ana López-de-Andrés, Javier de Miguel-Díez, Isabel Jiménez-Trujillo, Valentín Hernández-Barrera, José M de Miguel-Yanes, Manuel Méndez-Bailón, Napoleón Pérez-Farinós, Miguel Á Ngel Salinero-Fort, Rodrigo Jiménez-García
OBJECTIVES: To describe trends in the incidence and outcomes of community-acquired pneumonia (CAP) hospitalisations among patients with or without diabetes in Spain (2004-2013). DESIGN: Retrospective, observational study using the Spanish National Hospital Discharge Database (Conjunto Mínimo Básico de Datos (CMBD)). SETTING: Spain. PARTICIPANTS: We used national hospital discharge data to select all hospital admissions for CAP...
January 5, 2017: BMJ Open
https://www.readbyqxmd.com/read/28057059/invasive-pneumococcal-disease-caused-by-mucoid-serotype-3-streptococcus-pneumoniae-a-case-report-and-literature-review
#17
Naomi Sugimoto, Yuka Yamagishi, Jun Hirai, Daisuke Sakanashi, Hiroyuki Suematsu, Naoya Nishiyama, Yusuke Koizumi, Hiroshige Mikamo
BACKGROUND: Among the different serotypes of Streptococcus pneumoniae, serotype 3 has received global attention. We report the fatal case of a 76-year-old Japanese man who had an invasive pneumococcal disease associated with pneumonia caused by serotype 3 S. pneumoniae. CASE PRESENTATION: The patient had a history of hypertension, laryngeal cancer, chronic obstructive pulmonary disease, and type 2 diabetes mellitus. Following a cerebral arteriovenous malformation hemorrhage, he underwent surgery to remove the hematoma and began rehabilitation...
January 4, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28054135/-community-acquired-pneumonia
#18
S Poetter-Lang, C J Herold
CLINICAL ISSUE: The diagnosis of community-acquired pneumonia (CAP) is often not possible based only on the clinical symptoms and biochemical parameters. STANDARD RADIOLOGICAL METHODS: For every patient with the suspicion of CAP, a chest radiograph in two planes should be carried out. Additionally, a risk stratification for the decision between outpatient therapy or hospitalization is recommended. METHODICAL INNOVATIONS: Based on the evaluation of the different radiological patterns as well as their extent and distribution, a rough allocation to so-called pathogen groups as well as a differentiation between viral and bacterial infections are possible; however, because different pathogens cause different patterns an accurate correlation is not feasible by relying purely on imaging...
January 4, 2017: Der Radiologe
https://www.readbyqxmd.com/read/28053216/enhanced-antibody-detection-and-diagnosis-of-coccidioidomycosis-with-the-miravista-igg-and-igm-detection-enzyme-immunoassay
#19
Joshua Malo, Eric Holbrook, Tirdad Zangeneh, Chris Strawter, Eyal Oren, Ian Robey, Heidi Erickson, Racquel Chahal, Michelle Durkin, Cindy Thompson, Susan E Hoover, Neil M Ampel, L Joseph Wheat, Kenneth S Knox
BACKGROUND: Coccidioidomycosis is a common cause of community-acquired pneumonia in endemic areas of the southwestern United States. Clinical presentations range from self-limited disease to severe, disseminated disease. As such, early and accurate diagnosis is essential to ensure appropriate treatment and monitoring. Currently available diagnostic testing has variable accuracy, particularly in certain patient populations, and new tests may offer improved accuracy for the diagnosis of coccidioidomycosis...
January 4, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28050467/correspondence-assessment-of-treatment-of-community-acquired-severe-pneumonia-by-two-different-antibiotics
#20
Anirban Mandal, Amitabh Singh, Puneet Kaur Sahi, Bhavika Rishi
No abstract text is available yet for this article.
November 2016: Journal of Clinical and Diagnostic Research: JCDR
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