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acinetobacter baumannii bloodstream infections

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https://www.readbyqxmd.com/read/28408938/bacteraemia-in-intensive-care-unit-clinical-bacteriological-and-prognostic-prospective-study
#1
Zineb Lachhab, Mohammed Frikh, Adil Maleb, Jalal Kasouati, Nouafal Doghmi, Yassine Ben Lahlou, Bouchra Belefquih, Abdelhay Lemnouer, Mostafa Elouennass
Objectives. We conducted a one-year observational study from December 2012 to November 2013 to describe the epidemiology of bacteraemia in intensive care units (ICU) of Mohammed V Military Teaching Hospital of Rabat (Morocco). Methods. The study consisted of monitoring all blood cultures coming from intensive care units and studying the bacteriological profile of positive blood cultures as well as their clinical significance. Results. During this period, a total of 46 episodes of bacteraemia occurred, which corresponds to a rate of 15,4/1000 patients...
2017: Canadian Journal of Infectious Diseases & Medical Microbiology
https://www.readbyqxmd.com/read/28325579/burden-of-healthcare-associated-infections-in-china-results-of-the-2015-point-prevalence-survey-in-dong-guan-city
#2
J Wang, J Hu, S Harbarth, D Pittet, M Zhou, W Zingg
BACKGROUND: Healthcare-associated infections (HCAIs) are a major health threat. There are few data about HCAI and antibiotic use in the People's Republic of China in the English literature. AIM: To describe and discuss the prevalence of HCAI and antibiotic use from the 2015 point prevalence survey (PPS) in Dong Guan City. METHODS: In 2015, the Dong Guan (City) Nosocomial Infection Control and Quality Improvement Centre organized its yearly PPS in the secondary and tertiary care hospitals of Dong Guan City...
February 17, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28287300/clinical-and-molecular-epidemiology-of-acinetobacter-baumannii-bloodstream-infections-in-an-endemic-setting
#3
Dror Marchaim, Dana Levit, Roy Zigron, Michal Gordon, Tsillia Lazarovitch, Joao A Carrico, Vered Chalifa-Caspi, Jacob Moran-Gilad
AIM: The transmission dynamics of Acinetobacter baumannii in endemic settings, and the relation between microbial properties and patients' clinical outcomes, are yet obscure and hampered by insufficient metadata. METHODS & RESULTS: Of 20 consecutive patients with A. baumannii bloodstream infection that were thoroughly analyzed at a single center, at least one transmission opportunity was evident for 85% of patients. This implies that patient-to-patient transmission is the major mode of A...
March 2017: Future Microbiology
https://www.readbyqxmd.com/read/28139542/an-audit-of-colistin-use-in-neonatal-sepsis-from-a-tertiary-care-centre-of-a-resource-limited-country
#4
Bonny Jasani, Sridharan Kannan, Ruchi Nanavati, Nithya J Gogtay, Urmila Thatte
BACKGROUND & OBJECTIVES: Sepsis due to multidrug-resistant Gram-negative pathogens is a challenge for clinicians and microbiologists and has led to use of parenteral colistin. There is a paucity of data regarding safety and efficacy of intravenous colistin use in neonates. The objective of this retrospective analysis was to study the efficacy and safety of intravenous colistin in the treatment of neonatal sepsis. METHODS: An audit of the data from neonates, admitted to a neonatal intensive care unit of a tertiary care hospital during January 2012 to December 2012, and who received intravenous colistin was carried out...
September 2016: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28109554/clinical-and-microbiological-characteristics-of-bloodstream-infections-among-patients-with-haematological-malignancies-with-and-without-neutropenia-at-a-medical-centre-in-northern-taiwan-2008-2013
#5
Chien-Yuan Chen, Feng-Ming Tien, Wang-Huei Sheng, Shang-Yi Huang, Ming Yao, Jih-Luh Tang, Woei Tsay, Hwei-Fang Tien, Po-Ren Hsueh
This study aimed to investigate the epidemiology and microbiology of bloodstream infections (BSIs) in patients with haematological malignancies. Clinical characteristics and microbiology of 2083 patients with haematological malignancy who were treated for BSI from 2008 to 2013 at a medical centre in Taiwan were retrospectively reviewed. Lymphoma (38.1%) was the most common, followed by acute myeloid leukaemia (30.9%). Of the 2090 non-duplicate BSI isolates, 1310 (62.7%) were recovered from patients with neutropenia...
March 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28007308/a-point-prevalence-survey-of-healthcare-associated-infection-in-fifty-two-chinese-hospitals
#6
Y Chen, J Y Zhao, X Shan, X L Han, S G Tian, F Y Chen, X T Su, Y S Sun, L Y Huang, L Han
BACKGROUND: Healthcare-associated infection (HCAI) represents a major problem for patient safety worldwide. AIM: To demonstrate the prevalence, causative agents, and risk factors for HCAI in Chinese hospitals. METHODS: A one-day point-prevalence survey was conducted in 52 Chinese hospitals between October 2014 and March 2015. A web-based software system was developed for data entry and management. FINDINGS: Among 53,939 patients surveyed, the prevalence of patients with at least one HCAI was 3...
January 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/27955639/control-of-carbapenem-resistant-acinetobacter-baumannii-outbreak-in-an-intensive-care-unit-of-a-teaching-hospital-in-southern-italy
#7
Aida Bianco, Angela Quirino, Mariavalentina Giordano, Vito Marano, Claudia Rizzo, Maria Carla Liberto, Alfredo Focà, Maria Pavia
BACKGROUND: Acinetobacter baumannii is an opportunistic pathogen that has become a major cause of concern, since it is a frequent cause of healthcare-associated infections (HAIs). The aim of the study was to describe the occurrence, the management and the control of an outbreak that occurred in an intensive care unit (ICU) of a teaching hospital in Southern Italy caused by multiple strains of extensively drug-resistant A. baumannii (XDRAB). METHODS: Case-patient was defined as a patient with an healthcare-associated infection caused by an XDRAB isolate identified in a clinically significant culture...
December 12, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27895018/occurrence-of-diverse-abgri1-type-genomic-islands-in-acinetobacter-baumannii-global-clone-2-isolates-from-south-korea
#8
Dae Hun Kim, Sook-In Jung, Ki Tae Kwon, Kwan Soo Ko
In this study, we analyzed the frequency of the AbGRI1-type genomic island (GI) and its association with genotypes. We obtained 130 Acinetobacter baumannii isolates causing bloodstream infections from patients in South Korea. Antimicrobial susceptibility testing and multilocus sequence typing were performed. The presence of AbGRI1-type GIs and their structures were determined by sequential PCR and sequencing. Ninety-eight isolates (75.3%) representing 14 sequence types (STs) belonged to clonal complex 208 (CC208), corresponding to global clone 2 (GC2)...
February 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27852378/-analysis-of-the-protein-expression-differences-between-colonized-and-infectious-multidrug-resistant-acinetobacter-baumannii
#9
W J Sui, M Wang, Y F Huang, X X Lu
Objective: To analyze the protein expression differences between colonized multidrug-resistant acinetobacter baumannii (MDR-AB) and infectious MDR-AB using comparative proteomics and matrix assisted laser desorption ionization time of flight mass spectrometry (MALDI-TOF MS) and to explore the molecular characteristics of MDR-AB infections. Methods: A total of 59 MDR-AB strains including 23 of bloodstream infections MDR-AB and 36 of nasal, pharyngeal or environmental colonization MDR-AB were collected from Beijing Tongren Hospital between January 2008 and December 2011...
November 8, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27728770/investigation-of-extensively-drug-resistant-blaoxa-23-producing-acinetobacter-baumannii-spread-in-a-greek-hospital
#10
Angeliki Mavroidi, Maria Katsiari, Eleftheria Palla, Sofia Likousi, Zoi Roussou, Charikleia Nikolaou, Evangelia D Platsouka
A rapid increase was observed in the incidence of extensively drug-resistant Acinetobacter baumannii (XDR Aba) isolates in a Greek hospital during 2014. To investigate the causes of this rise, the antimicrobial resistance profiles of all carbapenem-resistant (CARB-R) Aba isolates recovered during 2014-2015 were determined. Selected XDR Aba isolates (n = 13) were characterized by molecular methods. XDR Aba (48 isolates) represented 21.4% of the 224 CARB-R Aba recovered during the study period. The 13 selected XDR Aba isolates were positive for the blaOXA-23, the intrinsic blaOXA-51, and the adeB gene of the AdeABC efflux pump, and all belonged to the 3LST ST101, corresponding to the international clone II...
October 11, 2016: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/27688611/bloodstream-infections-in-febrile-neutropenic-patients-at-a-tertiary-cancer-institute-in-south-india-a-timeline-of-clinical-and-microbial-trends-through-the-years
#11
K Govind Babu, D Lokanatha, K C Lakshmaiah, M C Suresh Babu, Linu A Jacob, Gita R Bhat, Harsha Vardhana, Mahua Sinha, B R Vijaykumar, B G Sumati, R S Jayshree
INTRODUCTION: Febrile neutropenia (FN) is an oncological emergency. The choice of empiric therapy depends on the locally prevalent pathogens and their sensitivities, the sites of infection, and cost. The Infectious Diseases Society of America guidelines are being followed for the management of FN in India. METHODS: This is a prospective observational study conducted at a tertiary care cancer centre from September 2012 to September 2014. OBJECTIVES: The objectives of this study were as follows: (1) To review the pattern of microbial flora, susceptibility pattern, and important clinical variables among bloodstream infections in febrile neutropenic patients with solid tumors and hematological malignancies...
July 2016: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/27677795/acinetobacter-baumannii-coordinates-urea-metabolism-with-metal-import-to-resist-host-mediated-metal-limitation
#12
Lillian J Juttukonda, Walter J Chazin, Eric P Skaar
During infection, bacterial pathogens must adapt to a nutrient metal-limited environment that is imposed by the host. The innate immune protein calprotectin inhibits bacterial growth in vitro by chelating the divalent metal ions zinc (Zn(2+), Zn) and manganese (Mn(2+), Mn), but pathogenic bacteria are able to cause disease in the presence of this antimicrobial protein in vivo. One such pathogen is Acinetobacter baumannii, a Gram-negative bacterium that causes pneumonia and bloodstream infections that can be complicated by resistance to multiple antibiotics...
September 27, 2016: MBio
https://www.readbyqxmd.com/read/27659437/a-5-year-surveillance-study-on-antimicrobial-resistance-of-acinetobacter-baumannii-clinical-isolates-from-a-tertiary-greek-hospital
#13
Sofia Maraki, Elpis Mantadakis, Viktoria Eirini Mavromanolaki, Diamantis P Kofteridis, George Samonis
BACKGROUND: Acinetobacter baumannii has emerged as a major cause of nosocomial outbreaks. It is particularly associated with nosocomial pneumonia and bloodstream infections in immunocompromised and debilitated patients with serious underlying pathologies. Over the last two decades, a remarkable rise in the rates of multidrug resistance to most antimicrobial agents that are active against A. baumannii has been noted worldwide. We evaluated the rates of antimicrobial resistance and changes in resistance over a 5-year period (2010-2014) in A...
September 2016: Infection & Chemotherapy
https://www.readbyqxmd.com/read/27647068/-analysis-of-the-pathogenic-characteristics-of-162-severely-burned-patients-with-bloodstream-infection
#14
Y L Gong, Z C Yang, S P Yin, M X Liu, C Zhang, X Q Luo, Y Z Peng
Objective: To analyze the distribution and drug resistance of pathogen isolated from severely burned patients with bloodstream infection, so as to provide reference for the clinical treatment of these patients. Methods: Blood samples of 162 severely burned patients (including 120 patients with extremely severe burn) with bloodstream infection admitted into our burn ICU from January 2011 to December 2014 were collected. Pathogens were cultured by fully automatic blood culture system, and API bacteria identification panels were used to identify pathogen...
September 20, 2016: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/27615546/burn-associated-bloodstream-infections-in-pediatric-burn-patients-time-distribution-of-etiologic-agents
#15
İlker Devrim, Ahu Kara, Mine Düzgöl, Aytaç Karkıner, Nuri Bayram, Günyüz Temir, Arzu Şencan, Yelda Sorguç, Gamze Gülfidan, Münevver Hoşgör
BACKGROUND: Infections are the leading cause of morbidity and mortality in patients with burns in burn units. Bloodstream infections (BSIs) in patients with burns may result from burn wound infection, use of invasive devices such as central venous catheters, and translocation of the gastrointestinal flora. OBJECTIVE: In this study, we investigated the distribution and antimicrobial drug resistance of causative pathogens in children with burns and the durational changes of microorganisms in the distribution of BSIs in children...
February 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/27614427/epidemiological-characterization-of-acinetobacter-baumannii-bloodstream-isolates-from-a-chinese-burn-institute-a-three-year-study
#16
Guangtao Huang, Supeng Yin, Lijuan Xiang, Yali Gong, Kedai Sun, Xiaoqiang Luo, Cheng Zhang, Zichen Yang, Liuyang Deng, Bei Jiang, Shouguang Jin, Jing Chen, Yizhi Peng
Acinetobacter baumannii infection is a serious threat to burn patients. Bacteremia due to A. baumannii is becoming the most common cause of mortality following burn. However, the epidemiology of A. baumannii causing burn-related bloodstream infections has rarely been reported. We retrospectively collected 81 A. baumannii isolates from the bloodstream of burn patients over a three-year period. Antibiotic susceptibility tests, the prevalence of antibiotic-resistant genes and sequence typing (ST) were conducted to characterize these strains...
November 2016: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/27552304/emergence-of-antimicrobial-resistance-among-acinetobacter-species-a-global-threat
#17
Nina M Clark, George G Zhanel, Joseph P Lynch
PURPOSE OF REVIEW: Bacteria within the genus Acinetobacter [principally Acinetobacter baumannii-calcoaceticus complex (ABC)] are Gram-negative coccobacilli that may cause serious nosocomial infections (particularly ventilator-associated pneumonia and infections of the bloodstream, urinary tract, and wounds) as well as community-acquired infections (often skin/soft tissue infections in the context of trauma). Within the past two decades, Acinetobacter spp. have been responsible for an increasing number of infections in intensive care units (ICUs) globally...
October 2016: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/27516521/draft-genome-sequence-of-colistin-resistant-acinetobacter-baumannii-strain-vb22595-isolated-from-a-central-line-associated-bloodstream-infection
#18
Balaji Veeraraghavan, Shalini Anandan, Naveen Kumar Devanga Ragupathi, Saranya Vijayakumar, Dhiviya Prabaa Muthuirulandi Sethuvel, Indranil Biswas
Acinetobacter baumannii is an important emerging pathogen that causes health care-associated infections. In this study, we determined the genome of a multidrug-resistant clinical strain, VB22595, isolated from a hospital in Southern India. The draft genome indicates that strain VB22595 encodes a genome of ~3.92 Mb in size and does not contain plasmid derived MCR-1 for colistin resistance.
2016: Genome Announcements
https://www.readbyqxmd.com/read/27506797/acinetobacter-baumannii-phenylacetic-acid-metabolism-influences-infection-outcome-through-a-direct-effect-on-neutrophil-chemotaxis
#19
Md Saruar Bhuiyan, Felix Ellett, Gerald L Murray, Xenia Kostoulias, Gustavo M Cerqueira, Keith E Schulze, Mohd Hafidz Mahamad Maifiah, Jian Li, Darren J Creek, Graham J Lieschke, Anton Y Peleg
Innate cellular immune responses are a critical first-line defense against invading bacterial pathogens. Leukocyte migration from the bloodstream to a site of infection is mediated by chemotactic factors that are often host-derived. More recently, there has been a greater appreciation of the importance of bacterial factors driving neutrophil movement during infection. Here, we describe the development of a zebrafish infection model to study Acinetobacter baumannii pathogenesis. By using isogenic A. baumannii mutants lacking expression of virulence effector proteins, we demonstrated that bacterial drivers of disease severity are conserved between zebrafish and mammals...
August 23, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27452903/nosocomial-bloodstream-infections-in-neurosurgery-a-10-year-analysis-in-a-center-with-high-antimicrobial-drug-resistance-prevalence
#20
Parmenion P Tsitsopoulos, Elias Iosifidis, Charalampos Antachopoulos, Dimitrios M Anestis, Ekaterini Karantani, Angeliki Karyoti, Georgios Papaevangelou, Eftychios Kyriazidis, Emmanuel Roilides, Christos Tsonidis
BACKGROUND: Data on nosocomial bloodstream infections (NBSI) in neurosurgery is limited. This study aimed to analyze the epidemiology, microbiology, outcome, and risk factors for death in neurosurgical patients with NBSI in a multidrug resistant setting. METHODS: Neurosurgical patients with a confirmed NBSI within the period 2003-2012 were retrospectively analyzed. NBSI was diagnosed when a pathogen was isolated from a blood sample obtained after the first 48 h of hospitalization...
September 2016: Acta Neurochirurgica
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