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https://www.readbyqxmd.com/read/28737874/-brain-abscess-in-children-ten-years-of-experience-in-a-third-level-pediatric-hospital
#1
Martín Brizuela, Guadalupe Pérez, Soledad Martiren, Ana N Varela Baino, Carola Cedillo, Silvina Ruvinsky, Carolina Epelbaum, Adela Isasmendi, Mirta Litterio, José L Pinheiro, Rosa Bologna
Brain abscess is a focal infection that occurs with a frequency of 0.3-1.3 cases per 100,000 people/year. We describe the epidemiology, clinical and microbiology characteristics of 38 children diagnosed with brain abscess hospitalized between 4/1/2005 and 12/31/2015 at Hospital de Pediatría "Prof. Dr. Juan P. Garrahan" in Buenos Aires City. Twenty-four patients were male. The median age was 132 months. Predisposing factors were detected in 25 children. The median evolution from onset of symptoms to the visit was 7 days...
August 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28735053/activity-of-dalbavancin-tested-against-gram-positive-clinical-isolates-causing-skin-and-skin-structure-infections-in-paediatric-patients-from-us-hospitals-2014-2015
#2
Michael A Pfaller, Rodrigo E Mendes, Helio S Sader, Mariana Castanheira, Robert K Flamm
OBJECTIVES: This study provides an in vitro analysis of dalbavancin activity against isolates causing skin and skin structure infections (SSSIs) in children. METHODS: 770 Staphylococcus aureus, 167 β-hemolytic streptococci (BHS), 42 coagulase-negative staphylococci (CoNS), 25 Enterococcus faecalis and 13 viridans group streptococci (VGS) were collected from children (<18 y/o) in the United States (2014-2015). RESULTS: Dalbavancin had MIC50/90 values of 0...
July 19, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28727951/in-vitro-activity-of-telavancin-against-clinically-important-gram-positive-pathogens-from-69-u-s-medical-centers-2015-potency-analysis-by-u-s-census-divisions
#3
Michael A Pfaller, Helio S Sader, Robert K Flamm, Mariana Castanheira, Jennifer I Smart, Rodrigo E Mendes
A total of 8,072 gram-positive isolates collected from 69 medical centers among all 9 U.S. Census Divisions during the 2015 SENTRY Antimicrobial Surveillance Program were included. Telavancin had minimal inhibitory concentration (MIC)50 and MIC90 values of 0.03/0.06 μg/mL, respectively, against methicillin-susceptible (MSSA) and methicillin-resistant Staphylococcus aureus (MRSA). Similar activity was also observed among coagulase-negative staphylococci (MIC50/90, 0.03/0.06 μg/ml; 100.0% inhibited by ≤0...
July 20, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28683646/bloodstream-infections-in-acute-myeloid-leukemia-patients-treated-according-to-the-finnish-leukemia-group-aml-2003-protocol-a-prospective-nationwide-study
#4
Aarne Kolonen, Marjatta Sinisalo, Reetta Huttunen, Jaana Syrjänen, Janne Aittoniemi, Heini Huhtala, Marja Sankelo, Hannele Rintala, Riikka Räty, Esa Jantunen, Tapio Nousiainen, Marjaana Säily, Marjut Kauppila, Maija Itälä-Remes, Hanna Ollikainen, Auvo Rauhala, Pirjo Koistinen, Erkki Elonen
BACKGROUND: Infections greatly influence the outcome of acute myeloid leukemia (AML) patients receiving intensive treatment. The aim of this study was to establish the incidence, microbial etiology, risk factors and prognosis of bloodstream infections (BSIs) in patients with AML and compare the results with the previous treatment protocol (AML-92). METHODS: Registery data were gathered prospectively from 357 patients aged 16-65 years recruited on the AML-2003 treatment protocol between November 2003 and November 2011 during different treatment cycles...
July 6, 2017: Infectious Diseases
https://www.readbyqxmd.com/read/28681536/mycotic-aneurysm-of-the-root-of-left-subclavian-artery-associated-with-aortic-coarctation-discovered-by-echocardiography
#5
Ming-Dan Deng, Xin Wei, Wen Zhang, Hong Tang
A 16-year-old girl was admitted with a 7-month history of recurrent fever, weight loss of 5 kg, and general poor health status. Blood culture was positive with Streptococcus viridans. Transthoracic echocardiography established an aneurysm of the root of left subclavian artery, associated with an aortic coarctation just before the origin of the left subclavian artery with a velocity of 4.8 cm/s. Three-dimensional echocardiography demonstrated the entire inner structure of the aneurysm. Computed tomography reconstruction confirmed the presence of aortic coarctation and mycotic aneurysm, it also revealed an aberrant right subclavian artery...
July 6, 2017: Echocardiography
https://www.readbyqxmd.com/read/28681361/top-down-lesa-mass-spectrometry-protein-analysis-of-gram-positive-and-gram-negative-bacteria
#6
Klaudia I Kocurek, Leanne Stones, Josephine Bunch, Robin C May, Helen J Cooper
We have previously shown that liquid extraction surface analysis (LESA) mass spectrometry (MS) is a technique suitable for the top-down analysis of proteins directly from intact colonies of the Gram-negative bacterium Escherichia coli K-12. Here we extend the application of LESA MS to Gram-negative Pseudomonas aeruginosa PS1054 and Gram-positive Staphylococcus aureus MSSA476, as well as two strains of E. coli (K-12 and BL21 mCherry) and an unknown species of Staphylococcus. Moreover, we demonstrate the discrimination between three species of Gram-positive Streptococcus (Streptococcus pneumoniae D39, and the viridans group Streptococcus oralis ATCC 35037 and Streptococcus gordonii ATCC35105), a recognized challenge for matrix-assisted laser desorption ionization time-of-flight MS...
July 5, 2017: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/28643493/identification-of-viridans-streptococci-with-matrix-assisted-laser-desorption-ionization-time-of-flight-mass-spectrometry-by-an-in-house-method-and-a-commercially-available-system
#7
Catalina Suzana Stingu, Klaus Eschrich, Juliane Thiel, Toralf Borgmann, Reiner Schaumann, Arne C Rodloff
Two matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF-MS)-based methods were compared for their ability to identify viridans streptococci. One approach employed a reference database and software developed in-house. All inhouse measurements were performed using an Autoflex II Instrument (Bruker Daltonics GmbH, Germany). The other system, a VITEK-MS (BioMérieux, France) was operated on the commercially available V2.0 Knowledge Base for Clinical Use database. Clinical isolates of viridans streptococci (n=184) were examined...
September 2017: Annals of Laboratory Medicine
https://www.readbyqxmd.com/read/28640003/infections-associated-with-streptococcus-constellatus-in-children
#8
Howard Faden, Mustafa Mohmand
Streptococcus constellatus is a viridans Streptococcus belonging to the Anginosus group. It was associated with abscesses in 37 children, 80% of whom had acute appendicitis with perforation and abscess formation in 50%. None of the children was younger than 3 years of age.
June 20, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28625838/comparison-of-time-to-detection-values-between-bact-alert-virtuo-and-bact-alert-3d-instruments-for-clinical-blood-culture-samples
#9
Francesco Congestrì, Maria Federica Pedna, Michela Fantini, Michela Samuelli, Pasqua Schiavone, Arianna Torri, Stefania Bertini, Vittorio Sambri
OBJECTIVES: The early detection of bacteraemia and fungemia is of paramount importance to guide antimicrobial therapy in septic patients. In this study the 'time to detection' (TTD) value for the new blood culture system BacT/ALERT VIRTUO (VIRTUO) was evaluated in 1462 positive clinical bottles and compared with the TTD for 1601 positive clinical bottles incubated in the BacT/ALERT 3D system (BTA-3D). METHODS: The most representative microorganisms isolated from bottles incubated in both blood culture systems were divided into eight categories (in order of frequency): coagulase-negative staphylococci (CoNS), Escherichia coli, Enterobacteriaceae (other than E...
June 15, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28625367/impact-of-aha-s-2007-guideline-change-on-incidence-of-infective-endocarditis-in-infants-and-children
#10
Rie Sakai Bizmark, Ruey-Kang R Chang, Yusuke Tsugawa, Kenneth M Zangwill, Ichiro Kawachi
Use a nationally representative sample to assess impacts of new clinical guidelines issued by the American Heart Association (AHA) in 2007 for many types of invasive procedures, with recommendations for significant decreases in antimicrobial prophylaxis use. STUDY DESIGN: Interrupted time series analyses of pediatric hospitalizations for Infective Endocarditis (IE), using the Nationwide Inpatient Sample (NIS) ICD-9-CM diagnostic codes, identified IE hospitalizations for patients <18 years old from 2001 to 2012...
July 2017: American Heart Journal
https://www.readbyqxmd.com/read/28546690/update-on-the-epidemiology-and-antibiotic-resistance-of-ocular-infections
#11
Darlene Miller
PURPOSE: The purpose of this review is to provide an update on the epidemiology and current antibiotic-resistant threats in ophthalmology. METHODS: Trends in frequency and antibiotic-nonsusceptible profiles during an 11 year-period (2005-2015) were evaluated and compared with the 5-year Antibiotic Resistance Monitoring in Ocular Microorganism (ARMOR) study. RESULTS: Trends in the current review confirmed the continued high rates of fluoroquinolone nonsusceptbility circulating among ocular methicillin-susceptible Staphylococcus aureus, methicillin-susceptible Staphylococcus epidermidis, methicillin-resistant S...
January 2017: Middle East African Journal of Ophthalmology
https://www.readbyqxmd.com/read/28542458/a-pilot-study-using-metagenomic-sequencing-of-the-sputum-microbiome-suggests-potential-bacterial-biomarkers-for-lung-cancer
#12
Simon J S Cameron, Keir E Lewis, Sharon A Huws, Matthew J Hegarty, Paul D Lewis, Justin A Pachebat, Luis A J Mur
Lung cancer (LC) is the most prevalent cancer worldwide, and responsible for over 1.3 million deaths each year. Currently, LC has a low five year survival rates relative to other cancers, and thus, novel methods to screen for and diagnose malignancies are necessary to improve patient outcomes. Here, we report on a pilot-sized study to evaluate the potential of the sputum microbiome as a source of non-invasive bacterial biomarkers for lung cancer status and stage. Spontaneous sputum samples were collected from ten patients referred with possible LC, of which four were eventually diagnosed with LC (LC+), and six had no LC after one year (LC-)...
2017: PloS One
https://www.readbyqxmd.com/read/28526094/patients-with-community-acquired-bacteremia-of-unknown-origin-clinical-characteristics-and-usefulness-of-microbiological-results-for-therapeutic-issues-a-single-center-cohort-study
#13
Johan Courjon, Elisa Demonchy, Nicolas Degand, Karine Risso, Raymond Ruimy, Pierre-Marie Roger
Bacteremia of unknown origin (BUO) are associated with increased mortality compared to those with identified sources. Microbiological data of those patients could help to characterize an appropriate empirical antibiotic treatment before bloodcultures results are available during sepsis of unknown origin. Based on the dashboard of our ward that prospectively records several parameters from each hospitalization, we report 101 community-acquired BUO selected among 1989 bacteremic patients from July 2005 to April 2016, BUO being defined by the absence of clinical and paraclinical infectious focus and no other microbiological samples retrieving the bacteria isolated from blood cultures...
May 19, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28509506/anti-inflammatory-and-regenerative-effects-of-albanian-propolis-in-experimental-vital-amputations
#14
Aida Meto, Agron Meto, Bora Bimbari, Kastriot Shytaj, Mutlu Özcan
This study evaluated the effects of Albanian propolis on the inflamed pulpal tissue after pulpotomy in piglets. In five piglets, two teeth each were infected using special pathogenic microbial flora that was prepared in advance in order to cause inflammation of the pulp. Pulpotomy was performed in the maxillary and mandibular central and lateral incisors. Microbial flora pathogenesis prepared from the section of infected teeth, containing Staphylococcus aureus, Streptococcus viridans, Enterococcus faecalis, Staphylococcus albus and mixed flora were used to cause artificial pulpitis...
September 2016: European Journal of Prosthodontics and Restorative Dentistry
https://www.readbyqxmd.com/read/28482820/the-changing-epidemiology-and-clinical-features-of-infective-endocarditis-a-retrospective-study-of-196-episodes-in-a-teaching-hospital-in-china
#15
Wan Zhu, Qian Zhang, Jingping Zhang
BACKGROUND: Infective endocarditis is an uncommon but life-threatening infectious disease. To our knowledge, current investigations of the characteristics of infective endocarditis in our region are scarce. In this study, we aimed to investigate the changes in the epidemiology and clinical features of infective endocarditis. METHODS: A retrospective analysis of clinical data was performed using 196 infective endocarditis cases diagnosed between June 2004 and December 2012 at The First Affiliated Hospital of China Medical University...
May 8, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28480269/globicatella-sanguinis-osteomyelitis-and-bacteremia-review-of-an-emerging-human-pathogen-with-an-expanding-spectrum-of-disease
#16
Andy O Miller, Seanne P Buckwalter, Michael W Henry, Fann Wu, Katherine F Maloney, Bisrat K Abraham, Barry J Hartman, Barry D Brause, Susan Whittier, Thomas J Walsh, Audrey N Schuetz
BACKGROUND: Globicatella sanguinis is an uncommon pathogen that may be misdiagnosed as viridans group streptococci. We review the literature of Globicatella and report 2 clinical cases in which catalase-negative Gram-positive cocci resembling viridans group streptococci with elevated minimum inhibitory concentrations (MICs) to ceftriaxone were inconsistently identified phenotypically, with further molecular characterization and ultimate identification of G sanguinis. METHODS: Two clinical strains (from 2 obese women; 1 with a prosthetic hip infection and the other with bacteremia) were analyzed with standard identification methods, followed by matrix-assisted laser desorption ionization time-of-flight mass spectrometry, 16S recombinant ribonucleic acid (rRNA), and sodA polymerase chain reaction (PCR)...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28475731/evaluation-of-daptomycin-combinations-with-cephalosporins-or-gentamicin-against-streptococcus-mitis-group-strains-in-an-in-vitro-model-of-simulated-endocardial-vegetations-sevs
#17
Juwon Yim, Jordan R Smith, Nivedita B Singh, Seth Rice, Kyle Stamper, Cristina Garcia de la Maria, Arnold S Bayer, Nagendra N Mishra, José M Miró, Truc T Tran, Cesar A Arias, Paul Sullam, Michael J Rybak
Objectives: Among viridans group streptococcal infective endocarditis (IE), the Streptococcus mitis group is the most common aetiological organism. Treatment of IE caused by the S. mitis group is challenging due to the high frequency of β-lactam resistance, drug allergy and intolerability of mainstay antimicrobial agents such as vancomycin or gentamicin. Daptomycin has been suggested as an alternative therapeutic option in these scenarios based on its excellent susceptibility profile against S...
May 5, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28442374/peritonsillar-and-deep-neck-infections-a-review-of-330-cases
#18
Paula Martínez Pascual, Paloma Pinacho Martinez, Eviatar Friedlander, Carlos Martin Oviedo, Bartolome Scola Yurrita
INTRODUCTION: Deep neck infections (DNI) are defined as suppurative infectious processes of deep visceral spaces of the neck. OBJECTIVE: The aim of this study is to review different factors that may influence peritonsillar and deep neck Infections (DNI) and may play a role as bad prognosis predictors. METHODS: We present a retrospective study of 330 patients with DNI and peritonsillar infections who were admitted between January 2005 and December 2015 in a tertiary referral hospital...
April 9, 2017: Brazilian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28439680/microbiological-evaluation-of-infected-pelvic-lymphocele-after-robotic-prostatectomy-potential-predictors-for-culture-positivity-and-selection-of-the-best-empirical-antimicrobial-therapy
#19
Alaa Hamada, Catalina Hwang, Jorge Fleisher, Ingolf Tuerk
OBJECTIVES: To examine symptomatology and microbiology of infected lymphocele (LC) post-robotic-assisted radical prostatectomy and pelvic lymph node dissection (PLND) and to assess for potential predictors for LC fluid culture positivity. Secondly, to provide general recommendations about use of select antimicrobial therapy. METHODS: This was a single-center, IRB-approved, retrospective, case series review conducted between October 2008 and October 2014. Data included symptomatology, microbiology of symptomatic LC in men post-robotic prostatectomy and PLND...
July 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28439602/antibiogram-profile-of-septic-meningitis-among-children-in-duhok-iraq
#20
Abdulrahman T Saadi, Nadir A Garjees, Aveen H Rasool
  To determine the prevalence of bacteria in the cerebrospinal fluid (CSF), and the antibiogram profile in pediatric patients with suspected meningitis. Methods: This descriptive study was conducted between January 2014 and January 2016 in the Hevi Paediatric Teaching Hospital in Duhok, Iraq. The CSF samples were withdrawn from 432 pediatric patients suspected of meningitis. The samples were cultured, and antibiotic sensitivity tests were performed.  Results: There were 33 (7.6%) culture positive cases among 432 CSF samples...
May 2017: Saudi Medical Journal
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