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Microbiology of pneumonia

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https://www.readbyqxmd.com/read/28810278/-infections-in-patients-with-home-ventilation
#1
Christian Giesa, Fabian Wolter, Santiago Ewig
In patients with home ventilation, there is a markedly higher probability for lower respiratory infections or pneumonia and severe courses due to comorbidity. Tracheobronchitis and pneumonia are often difficult to distinguish. Tracheobronchitis with pronounced secretion which can't be controlled otherwise can be an indication for antimicrobial therapy.There are no data available in order to establish a recommendation for the initial empiric calculated antimicrobial therapy in patients with home ventilation...
August 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28797299/prevalence-of-antimicrobial-drug-resistant-bacteria-carried-by-in-and-outpatients-attending-a-secondary-care-hospital-in-zambia
#2
Marjolijn M B Nagelkerke, Kapembwa Sikwewa, Dennis Makowa, Irene de Vries, Simon Chisi, J Wendelien Dorigo-Zetsma
OBJECTIVE: Antimicrobial resistance is an increasing global health problem. Very little data on resistance patterns of pathogenic bacteria in low-income countries exist. The aim of this study was to measure the prevalence of antimicrobial drug resistant bacteria carried by in- and outpatients in the resource constraint setting of a secondary care hospital in Zambia. Nasal and rectal samples from 50 in- and 50 outpatients were collected. Patients were randomly selected and informed consent was obtained...
August 10, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28794044/nidovirus-associated-proliferative-pneumonia-in-the-green-tree-python-morelia-viridis
#3
Eva Dervas, Jussi Hepojoki, Andrea Laimbacher, Fernando Romero-Palomo, Christine Jelinek, Saskia Keller, Teemu Smura, Satu Hepojoki, Anja Kipar, Udo Hetzel
In 2014 we observed a noticeable increase in sudden deaths of green tree pythons (Morelia viridis). Pathological examination revealed accumulation of mucoid material within airways and lung, associated with enlargement of the entire lung. We performed full necropsy and histological examination on 12 affected green tree pythons from 7 different breeders to characterise the pathogenesis of this "mucinous" pneumonia. By histology we could show a marked hyperplasia of the airway epithelium and of faveolar type II pneumocytes...
August 9, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28790283/-postoperative-atelectasis-and-pneumonia-after-general-thoracic-surgery
#4
Yasushi Hoshikawa, Daisuke Tochii
Atelectasis and pneumonia are common postoperative complications occurred in patients undergoing general thoracic surgery. Strategies to reduce the risk of postoperative pulmonary complications including these 2 disorders consist of smoking cessation, optimization of underlying chronic obstructive pulmonary disease( COPD), adequate pain control, intensive oral care, and so on. Preoperative treatments for patients with COPD are the same as those for COPD patients being not about to have surgery, which mainly consist of long-acting bronchodilators and pulmonary rehabilitation...
July 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28780309/clinical-and-microbiological-characteristics-of-pantoea-agglomerans-infection-in-children
#5
Ayşe Büyükcam, Özlem Tuncer, Deniz Gür, Banu Sancak, Mehmet Ceyhan, Ali Bülent Cengiz, Ateş Kara
Pantoea agglomerans is an environmental Gram-negative bacterium that rarely is responsible for the infections in humans but it is often a causative factor of a number of occupational diseases. This study evaluated the clinical and microbiological characteristics and pathogenicity of P. agglomerans in children. We retrospectively reviewed microbiological test results for all children (1 month old to 18 years old) who were admitted to our pediatric hospital between January 2000 to June 2015 and had positive clinical specimen cultures for P...
August 2, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28777819/infection-stage-adjusted-dose-of-beta-lactams-for-parsimonious-and-efficient-antibiotic-treatments-a-pasteurella-multocida-experimental-pneumonia-in-mice
#6
Maleck V Vasseur, Marlene Z Lacroix, Pierre-Louis Toutain, Alain Bousquet-Melou, Aude A Ferran
In this study, the impact of infection stage on clinically and microbiologically efficacious doses and on antibiotic consumption was assessed during a naturally evolving infectious disease, using an original mouse model of pulmonary infection produced by air-borne contamination. When Pasteurella multocida was administered as pathogenic agent to immunocompetent mice, 60% of the animals exhibited clinical symptoms of pneumonia 2 to 4 days after bacterial contamination of the lungs. Two beta-lactam antibiotics were evaluated: amoxicillin and cefquinome, a fourth generation cephalosporin developed for food animals...
2017: PloS One
https://www.readbyqxmd.com/read/28776526/common-bacterial-isolates-clinical-outcome-and-tb-meningitis-in-children-admitted-at-morogoro-regional-referral-hospital-tanzania
#7
Ramadhani Salum Chambuso, Mkhoi Lord Mkhoi, Evelyn Kaambo
BACKGROUND: Bacterial meningitis is still one of the major causes of deaths, disabilities, and mental retardation in children in Morogoro region. To study the current meningitis burden, we evaluated the common bacterial isolates and clinical outcome of the disease in the region. METHODS: We conducted a hospital-based prospective study on 1352 children aged between 7 days and 12 years admitted in pediatric wards at Morogoro Regional Referral Hospital for 7 months...
July 2017: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28776163/characteristics-of-meningitis-following-transsphenoidal-endoscopic-surgery-a-case-series-and-a-systematic-literature-review
#8
Pasquale Pagliano, Chiara Caggiano, Tiziana Ascione, Domenico Solari, Giusy Di Flumeri, Luigi Maria Cavallo, Fabio Tortora, Paolo Cappabianca
BACKGROUND: Meningitis occurs in 0.8-1.5% of patients undergoing neurosurgery. The aim of the study was to evaluate the characteristics of meningitis after endoscopic endonasal transsphenoidal surgery (EETS) comparing the findings retrieved to those highlighted by literature search. MATERIALS AND METHODS: Patients treated by EETS during an 18-year period in the Department of Neurosurgery of 'Federico II' University of Naples were evaluated and included in the study if they fulfilled criteria for meningitis...
August 3, 2017: Infection
https://www.readbyqxmd.com/read/28776045/whole-genome-sequencing-of-human-clinical-klebsiella-pneumoniae-isolates-reveals-misidentification-and-misunderstandings-of-klebsiella-pneumoniae-klebsiella-variicola-and-klebsiella-quasipneumoniae
#9
S Wesley Long, Sarah E Linson, Matthew Ojeda Saavedra, Concepcion Cantu, James J Davis, Thomas Brettin, Randall J Olsen
Klebsiella pneumoniae is a major threat to public health, causing significant morbidity and mortality worldwide. The emergence of highly drug-resistant strains is particularly concerning. There has been a recognition and division of Klebsiella pneumoniae into three distinct phylogenetic groups: Klebsiella pneumoniae, Klebsiella variicola, and Klebsiella quasipneumoniae. K. variicola and K. quasipneumoniae have often been described as opportunistic pathogens that have less virulence in humans than K. pneumoniae does...
July 2017: MSphere
https://www.readbyqxmd.com/read/28770121/necrotizing-pneumonia-an-emerging-problem-in-children
#10
REVIEW
I Brent Masters, Alan F Isles, Keith Grimwood
BACKGROUND: In children, necrotizing pneumonia (NP) is an uncommon, severe complication of pneumonia. It is characterized by destruction of the underlying lung parenchyma resulting in multiple small, thin-walled cavities and is often accompanied by empyema and bronchopleural fistulae. REVIEW: NP in children was first reported in children in 1994, and since then there has been a gradual increase in cases, which is partially explained by greater physician awareness and use of contrast computed tomography (CT) scans, and by temporal changes in circulating respiratory pathogens and antibiotic prescribing...
2017: Pneumonia
https://www.readbyqxmd.com/read/28767588/successful-ceftazidime-avibactam-treatment-of-mdr-kpc-positive-klebsiella-pneumoniae-infection-in-a-patient-with-traumatic-brain-injury-a-case-report
#11
Agnese Gugliandolo, Carla Caio, Maria Lina Mezzatesta, Carmela Rifici, Placido Bramanti, Stefania Stefani, Emanuela Mazzon
RATIONALE: Carbapenem-resistant Enterobacteriaceae infections are a serious health care problem, because of the high mortality. Carbapenem resistance is mainly caused by carbapenemases production, including Klebsiella pneumoniae carbapenemase (KPC). Ceftazidime-avibactam is a new cephalosporin/β-lactamase inhibitor combination for the treatment of complicated urinary, intra-abdominal infections, and nosocomial pneumonia caused by gram negative, or other serious gram-negative infections...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28758615/determinants-of-implementation-of-isolation-precautions-against-infections-by-multidrug-resistant-microorganisms-a-hospital-based-multicenter-observational-study
#12
Thomas Bénet, Raphaele Girard, Solweig Gerbier-Colomban, Cédric Dananché, Elisabeth Hodille, Olivier Dauwalder, Philippe Vanhems
OBJECTIVES We aimed to ascertain the factors associated with lack of isolation precautions (IP) in patients infected or colonized by third-generation cephalosporin-resistant Enterobacteriaceae (3GCR-E) and methicillin-resistant Staphylococcus aureus (MRSA) in hospital settings. DESIGN Prospective surveillance and audit of practices. SETTING The study included 4 university hospitals in Lyon, France. PARTICIPANTS All patients hospitalized between April and June in 2013 and 2015 were included. Case patients had ≥1 clinical sample positive for MRSA and/or 3GCR-E...
July 31, 2017: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/28757329/infections-following-surgical-patent-ductus-arteriosus-ligation-in-vlbw-neonates
#13
Katarzyna Kopeć-Godlewska, Jadwiga Wójkowska-Mach
BACKGROUND: Very low birth weight (VLBW) neonates (<1,500 g) comprise approximately 1% of liveborn infants in Poland. Patent ductus arteriosus (PDA) is a common complication of prematurity. This study aimed to determine how many VLBW neonates treated in the participating units needed a surgical correction of PDA, and to evaluate the incidence of various types of post-operative infections, and their microbiology. METHODS: Observational study in five neonatology departments by the Polish Neonatology Surveillance Network, involving 2039 VLBW newborns of whom 103 (5...
July 27, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28751488/guideline-recommendations-and-antimicrobial-resistance-the-need-for-a-change
#14
Christelle Elias, Lorenzo Moja, Dominik Mertz, Mark Loeb, Gilles Forte, Nicola Magrini
OBJECTIVES: Antimicrobial resistance has become a global burden for which inappropriate antimicrobial use is an important contributing factor. Any decisions on the selection of antibiotics use should consider their effects on antimicrobial resistance. The objective of this study was to assess the extent to which antibiotic prescribing guidelines have considered resistance patterns when making recommendations for five highly prevalent infectious syndromes. DESIGN: We used Medline searches complemented with extensive use of Web engine to identify guidelines on empirical treatment of community-acquired pneumonia, urinary tract infections, acute otitis media, rhinosinusitis and pharyngitis...
July 26, 2017: BMJ Open
https://www.readbyqxmd.com/read/28736021/infectious-complications-and-multidrug-resistant-bacteria-in-patients-with-hematopoietic-stem-cell-transplantation-in-the-first-12-months-after-transplant
#15
A César-Arce, P Volkow-Fernández, L M Valero-Saldaña, B Acosta-Maldonado, D Vilar-Compte, P Cornejo-Juárez
BACKGROUND: Hematopoietic stem cell transplantation (HSCT) has been used as treatment in different hematologic and solid malignancies. The aim of this study was to describe the frequency of infectious complications, microbiology, and outcome in patients undergoing HSCT in Mexico during the pre-engraftment period and the impact on mortality rates at 12 months. METHODS: We conducted a retrospective study of all hematologic malignancies that received HSCT from January 2009 and December 2014, at an oncology reference center...
July 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28735318/trends-of-bloodstream-infections-in-a-university-greek-hospital-during-a-three-year-period-incidence-of-multidrug-resistant-bacteria-and-seasonality-in-gram-negative-predominance
#16
Fevronia Kolonitsiou, Matthaios Papadimitriou-Olivgeris, Anastasia Spiliopoulou, Vasiliki Stamouli, Vasileios Papakostas, Eleni Apostolopoulou, Christos Panagiotopoulos, Markos Marangos, Evangelos D Anastassiou, Myrto Christofidou, Iris Spiliopoulou
The aim of the study was to assess the epidemiology, the incidence of multidrug-resistant bacteria and bloodstream infections' (BSIs) seasonality in a university hospital. This retrospective study was carried out in the University General Hospital of Patras, Greece, during 2011-13 y. Blood cultures from patients with clinical presentation suggestive of bloodstream infection were performed by the BacT/ALERT System. Isolates were identified by Vitek 2 Advanced Expert System. Antibiotic susceptibility testing was performed by the disk diffusion method and E-test...
July 6, 2017: Polish Journal of Microbiology
https://www.readbyqxmd.com/read/28729207/first-two-cases-of-severe-multifocal-infections-caused-by-klebsiella-pneumoniae-in-switzerland-characterization-of-an-atypical-non-k1-k2-serotype-strain-causing-liver-abscess-and-endocarditis
#17
Baharak Babouee Flury, Valentina Donà, Niccolò Buetti, Hansjakob Furrer, Andrea Endimiani
BACKGROUND: We describe the first two multifocal invasive infections due to Klebsiella pneumoniae recently observed in Switzerland. METHODS: Phenotypic (MIC assays and string test) and molecular analyses (PCR/Sequencing for bla, virulence factor genes and whole genome sequencing for one strain) were performed to characterize the causative K. pneumoniae isolates. RESULTS: Both K. pneumoniae isolates (Kp1 and Kp2) were pan-susceptible to antibiotics and produced narrow-spectrum SHV β-lactamases...
July 17, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28729206/antimicrobial-resistance-patterns-of-gram-negative-bacteria-isolated-from-bloodstream-infections-in-an-iranian-referral-pediatric-hospital-a-six-year-study
#18
Shima Mahmoudi, Masoumeh Mahzari, Maryam Banar, Babak Pourakbari, Mohammad Taghi Haghi Ashtiani, Mohsen Mohammadi, Sepideh Keshavarz Valian, Setareh Mamishi
INTRODUCTION: Bloodstream infections (BSIs) are considered as a major cause of morbidity and mortality in children all over the world. The aim of this study was to describe the epidemiology and antimicrobial resistance patterns of Gram-negative bacteria (GNB) isolated from bloodstream infections (BSIs) in children admitted to the Children Medical Center Hospital (CMC), Tehran, Iran. METHODS: Clinical and microbiological data of the patients with positive blood cultures was collected from March 2011 to September 2016...
July 17, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28719310/severity-of-pneumonia-in-under-5-year-old-children-from-developing-countries-a-multicenter-prospective-observational-study
#19
Thomas Bénet, Valentina Sanchez Picot, Shally Awasthi, Nitin Pandey, Ashish Bavdekar, Anand Kawade, Annick Robinson, Mala Rakoto-Andrianarivelo, Maryam Sylla, Souleymane Diallo, Graciela Russomando, Wilma Basualdo, Florence Komurian-Pradel, Hubert Endtz, Philippe Vanhems, Gláucia Paranhos-Baccalà, For The Gabriel Network
Pneumonia is the leading cause of death in children. The objectives were to evaluate the microbiological agents linked with hypoxemia in hospitalized children with pneumonia from developing countries, to identify predictors of hypoxemia, and to characterize factors associated with in-hospital mortality. A multicenter, observational study was conducted in five hospitals, from India (Lucknow, Vadu), Madagascar (Antananarivo), Mali (Bamako), and Paraguay (San Lorenzo). Children aged 2-60 months with radiologically confirmed pneumonia were enrolled prospectively...
July 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28710611/bad-bacteria-in-acute-appendicitis-rare-but-relevant
#20
Alexander Reinisch, Patrizia Malkomes, Nils Habbe, Wolf Otto Bechstein, Juliane Liese
PURPOSE: Bacterial infections are a factor for morbidity in patients with acute appendicitis (AA). The spreading of multidrug-resistant (MDR) bacteria is a significant problem in surgery, and the most relevant MDR pathogens are summarized as Enterobacteriaceae, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterococci (ESKAPE) bacteria. Data regarding the species and distribution of bacteria in AA are available, but information about the resistances and their relevance is deficient...
July 15, 2017: International Journal of Colorectal Disease
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