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https://www.readbyqxmd.com/read/28428775/genomics-reveals-a-unique-clone-of-burkholderia-cenocepacia-harboring-an-actively-excising-novel-genomic-island
#1
Prashant P Patil, Swapna Mali, Samriti Midha, Vikas Gautam, Lona Dash, Sunil Kumar, Jayanthi Shastri, Lipika Singhal, Prabhu B Patil
Burkholderia cenocepacia is a clinically dominant form among the other virulent species of Burkholderia cepacia complex (Bcc). In the present study, we sequenced and analyzed the genomes of seven nosocomial Bcc isolates, five of which were isolated from the bloodstream infections and two isolates were recovered from the hospital setting during the surveillance. Genome-based species identification of the Bcc isolates using a type strain explicitly identified the species as B. cenocepacia. Moreover, single nucleotide polymorphism analysis revealed that the six isolates were clonal and phylogenetically distinct from the other B...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28427796/molecular-methods-for-septicemia-diagnosis
#2
Francesc Marco
Septicemia remains a major cause of hospital mortality. Blood culture remains the best approach to identify the etiological microorganisms when a bloodstream infection is suspected but it takes long time because it relies on bacterial or fungal growth. The introduction in clinical microbiology laboratories of the matrix-assisted laser desorption ionization time-of-flight mass spectrometry technology, DNA hybridization, microarrays or rapid PCR-based test significantly reduce the time to results. Tests for direct detection in whole blood samples are highly desirable because of their potential to identify bloodstream pathogens without waiting for blood cultures to become positive...
April 17, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/28426102/infection-related-complications-during-treatment-for-childhood-acute-lymphoblastic-leukemia
#3
H Inaba, D Pei, J Wolf, S C Howard, R T Hayden, M Go, O Varechtchouk, T Hahn, J Buaboonnam, M L Metzger, J E Rubnitz, R C Ribeiro, J T Sandlund, S Jeha, C Cheng, W E Evans, M V Relling, C-H Pui
Background: Comprehensive studies on neutropenia and infection-related complications in patients with acute lymphoblastic leukemia (ALL) are lacking. Patients and methods: We evaluated infection-related complications that were grade ≥3 on National Cancer Institute's Common Terminology Criteria for Adverse Events (version 3.0) and their risk factors in 409 children with newly diagnosed ALL throughout the treatment period. Results: Of the 2420 infection episodes, febrile neutropenia and clinically or microbiologically documented infection were seen in 1107 and 1313 episodes, respectively...
February 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28425261/central-line-associated-blood-stream-infections-characteristics-and-risk-factors-for-mortality-over-a-5-5-year-period
#4
Aynur Atilla, Zahide Doğanay, Hale Kefeli Çelik, Mehmet Derya Demirağ, Sırrı S Kiliç
BACKGROUND/AIM: Central line-associated bloodstream infections (CLABSIs) are associated with substantial morbidity and mortality and the infection rates vary in a wide range1397645907(high: 62.5%; low: 20%) in developing countries. We aimed to investigate the characteristics and the risk factors for mortality in patients with CLABSIs in intensive care units (ICUs) and provide the relevant data. MATERIALS AND METHODS: The electronic medical records database and file records obtained through active surveillance by an infection control committee of a hospital were screened to identify patients with CLABSIs hospitalized from January 2008 through July 2013...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28419092/a-multi-centric-study-of-candida-bloodstream-infection-in-lima-callao-peru-species-distribution-antifungal-resistance-and-clinical-outcomes
#5
Lourdes Rodriguez, Beatriz Bustamante, Luz Huaroto, Cecilia Agurto, Ricardo Illescas, Rafael Ramirez, Alberto Diaz, Jose Hidalgo
BACKGROUND: The incidence of candidemia is increasing in developing countries. Very little is known about the epidemiology of candidemia in Peru. The aim of this study is to describe the incidence, microbiology, clinical presentation and outcomes of Candida bloodstream infections in three Lima-Callao hospitals. METHODS: Candida spp. isolates were identified prospectively at participant hospitals between November 2013 and January 2015. Susceptibility testing for amphotericin B, fluconazole, posaconazole, voriconazole and anidulafungin was performed using broth microdilution method...
2017: PloS One
https://www.readbyqxmd.com/read/28419013/standardizing-best-nursing-practice-for-implanted-ports-applying-evidence-based-professional-guidelines-to-prevent-central-line-associated-bloodstream-infections
#6
Susanne B Conley, Paula Buckley, Lisa Magarace, Candace Hsieh, Lillian Vitale Pedulla
Nearly 3 million central vascular access devices (CVADs) are used in the United States each year. These devices are an important advance in health care and essential to oncology patients. However, CVADs are the most frequent cause of central line-associated bloodstream infections (CLABSIs). CLABSI can be prevented when evidence-based practices are followed consistently over time. Professional organizations establish valid standards and guidelines to guide CVAD practice. This article identifies strategies implemented at a comprehensive ambulatory cancer center to integrate professional evidence-based standards and guidelines for implanted port care into nursing practice at the point of care...
May 2017: Journal of Infusion Nursing: the Official Publication of the Infusion Nurses Society
https://www.readbyqxmd.com/read/28416559/a-novel-non-antibiotic-nitroglycerin-based-catheter-lock-solution-for-the-prevention-of-intraluminal-central-venous-catheter-infections-in-cancer-patients
#7
Anne-Marie Chaftari, Ray Hachem, Ariel Szvalb, Mahnaz Taremi, Bruno Granwehr, George Michael Viola, Amin Sapna, Andrew Assaf, Numan Yazan, Pankil Shah, Ketevan Gasitashvili, Elizabeth Natividad, Ying Jiang, Rebecca Slack, Ruth Reitzel, Joel Rosenblatt, Elie Mouhayar, Issam Raad
Background: For long-term central lines (CL), the lumen is the major source of central line associated bloodstream infections (CLABSI). Current standard of care for maintaining catheter patency includes flushing the CL with saline or heparin. Neither agent has any antimicrobial activity. Furthermore heparin may enhance staphylococcal biofilm formation. We evaluated the safety and efficacy of a novel non-antibiotic catheter lock solution for the prevention of CLABSI.Patients and Methods: Between November 2015, and February 2016, we enrolled 60 patients with hematologic malignancies who had peripherally inserted central catheter (PICC) to receive the study lock solution...
April 17, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28415937/heparinized-saline-versus-normal-saline-for-maintaining-peripheral-venous-catheter-patency-in-china-an-open-label-randomized-controlled-study
#8
Lichun Xu, Yan Hu, Xiaojin Huang, Jianguo Fu, Jinhui Zhang
Objective To evaluate the effects of heparin saline versus normal saline as locking solution for maintaining patency in peripheral venous catheters in Chinese patients. Methods This open-label, randomized controlled study was conducted in two hepatobiliary surgery wards, where patients received identical treatments, at a tertiary referral hospital. Patients were randomly divided into a normal saline group (NS, 3 ml) or a heparin saline group (HS, 50 IU/ml, 3 ml) for catheter sealing. Results The study enrolled 286 patients and 609 peripheral venous catheters were included in the analysis...
April 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28414786/the-model-for-end-stage-liver-disease-meld-as-a-predictor-of-short-term-mortality-in-staphylococcus-aureus-bloodstream-infection-a-single-centre-observational-study
#9
Jan A Roth, Andreas F Widmer, Sarah Tschudin-Sutter, Marc Dangel, Reno Frei, Manuel Battegay, Balthasar L Hug
BACKGROUND: Automated laboratory-based prediction models may support clinical decisions in Staphylococcus aureus bloodstream infections (BSIs), which carry a particularly high mortality. Small studies indicated that the laboratory-based Model for End-stage Liver Disease (MELD) score is a risk factor for mortality in critically ill patients with infections. For S. aureus BSIs, we therefore aimed to assess a potential association of the MELD score with mortality. METHODS: In this single-centre observational study, all consecutive patients with a first episode of methicillin-susceptible S...
2017: PloS One
https://www.readbyqxmd.com/read/28411947/central-line-associated-bloodstream-infections-in-the-nicu-successes-and-controversies-in-the-quest-for-zero
#10
Renée E Mobley, Matthew J Bizzarro
Central line-associated bloodstream infections (CLABSI) are among the most common healthcare-acquired infections in the neonatal intensive care unit (NICU) population and are associated with an increased risk of morbidity and mortality, as well as increased healthcare costs, and duration of hospitalization. Over the past decade, numerous local, statewide, and national quality improvement initiatives have resulted in a significant reduction in CLABSI rates. The majority of successful initiatives have utilized similar strategies to implement and sustain their efforts, including education of NICU staff in the principles of quality improvement, creation and implementation of central line insertion and maintenance bundles and methods for assessing compliance, formation of dedicated central line insertion and maintenance teams, and utilization of reliable and effective methods for collecting, analyzing, and displaying data...
April 12, 2017: Seminars in Perinatology
https://www.readbyqxmd.com/read/28409898/comparing-catheter-related-bloodstream-infections-in-pediatric-and-adult-cancer-patients
#11
Ramia Zakhour, Ray Hachem, Hussain M Alawami, Ying Jiang, Majd Michael, Anne-Marie Chaftari, Issam Raad
OBJECTIVE: Central venous catheters (CVCs) are essential to treatment of children with cancer. There are no studies comparing catheter-related bloodstream infections (CRBSIs) in pediatric cancer patients to those in adults, although current guidelines for management of CRBSI do not give separate guidelines for the pediatric population. In this study, we compared CRBSIs in both the pediatric and adult cancer population. METHODS: We retrospectively reviewed the electronic medical records of 92 pediatric and 156 adult patients with CRBSI cared for at MD Anderson Cancer Center between September 2005 and March 2014...
April 14, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28409543/ccr-2-neutralization-augments-murine-fresh-bmc-activation-by-staphylococcus-aureus-via-two-distinct-mechanisms-at-the-level-of-ros-production-and-cytokine-response
#12
Ajeya Nandi, Biswadev Bishayi
CCR-2 signaling regulates recruitment of monocytes from the bone marrow into the bloodstream and then to sites of infection. We sought to determine whether CCL-2/CCR-2 signaling is involved in the killing of Staphylococcus aureus by murine bone marrow cells (BMCs). The intermittent link of reactive oxygen species (ROS)-NF-κB/p38-MAPK-mediated CCL-2 production in CCR-2 signaling prompted us to determine whether neutralization of CCR-2 augments the response of murine fresh BMCs (FBMCs) after S. aureus infection...
May 2017: Innate Immunity
https://www.readbyqxmd.com/read/28409093/first-case-of-invasive-magnusiomyces-capitatus-infection-in-slovakia
#13
Dominika Tanuskova, Julia Horakova, Peter Svec, Ivana Bodova, Martina Lengerova, Matej Bezdicek, Miroslava Poczova, Jozef Koppl, Alexandra Kolenova
Magnusiomyces capitatus (previously known as Geotrichum capitatum or Blastoschizomyces capitatus or Trichosporon capitatum) is a rare cause of fungal infection in immunocompromised patients. Most of these cases (87%) have been reported from the Mediterranean region, as it is extremely rare to recognize it in other regions. Here we report a first case of disseminated M. capitatus infection in Slovakia. The patient - 19 year old woman with myelodysplastic syndrome was diagnosed with M. capitatus fungemia after allogeneic stem cell transplantation...
June 2017: Medical Mycology Case Reports
https://www.readbyqxmd.com/read/28408938/bacteraemia-in-intensive-care-unit-clinical-bacteriological-and-prognostic-prospective-study
#14
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/28407828/-clinical-features-of-invasive-candidiasis-and-risk-factors-for-candida-bloodstream-infection-in-children-a-multicenter-study-in-urumqi-china
#15
Ai Bi Bai Ai Er Ken, Zhi-Hua Ma, Dai-Qin Xiong, Pei-Ru Xu
OBJECTIVE: To investigate the clinical features of invasive candidiasis in children and the risk factors for Candida bloodstream infection. METHODS: A retrospective study was performed on 134 children with invasive candidiasis and hospitalized in 5 tertiary hospitals in Urumqi, China, between January 2010 and December 2015. The Candida species distribution was investigated. The clinical data were compared between the patients with and without Candida bloodstream infection...
April 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28407421/central-venous-catheters-and-biofilms-where-do-we-stand-in-2017
#16
REVIEW
Marie Gominet, Fabrice Compain, Christophe Beloin, David Lebeaux
The use of central venous catheters (CVC) is associated with a risk of microbial colonization and subsequent potentially severe infection. Microbial contamination of the catheter leads to the development of a microbial consortia associated with the CVC surface and embedded in an extracellular matrix, named biofilm. This biofilm provides bacterial cells the ability to survive antimicrobial agents and the host immune system and to disseminate to other sites of the body. The best preventive strategy is to avoid any unnecessary catheterization or to reduce indwelling duration when a CVC is required...
April 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/28406949/antimicrobial-resistant-infections-among-postpartum-women-at-a-ugandan-referral-hospital
#17
Lisa M Bebell, Joseph Ngonzi, Joel Bazira, Yarine Fajardo, Adeline A Boatin, Mark J Siedner, Ingrid V Bassett, Dan Nyehangane, Deborah Nanjebe, Yves Jacquemyn, Jean-Pierre van Geertruyden, Juliet Mwanga-Amumpaire, David R Bangsberg, Laura E Riley, Yap Boum
INTRODUCTION: Puerperal sepsis causes 10% of maternal deaths in Africa, but prospective studies on incidence, microbiology and antimicrobial resistance are lacking. METHODS: We performed a prospective cohort study of 4,231 Ugandan women presenting to a regional referral hospital for delivery or postpartum care, measured vital signs after delivery, performed structured physical exam, symptom questionnaire, and microbiologic evaluation of febrile and hypothermic women...
2017: PloS One
https://www.readbyqxmd.com/read/28405600/longitudinal-analysis-of-the-intestinal-microbiota-in-liver-transplantation
#18
Karin Kato, Miki Nagao, Kentaro Miyamoto, Kentaro Oka, Motomichi Takahashi, Masaki Yamamoto, Yasufumi Matsumura, Toshimi Kaido, Shinji Uemoto, Satoshi Ichiyama
BACKGROUND: Increasing evidence suggests that the intestinal microbiota plays an important role in liver diseases. However, the dynamics of the intestinal microbiota during liver transplantation (LT) and its potential role in clinical course remain unknown. METHODS: We prospectively analyzed the intestinal microbiota of 38 patients who underwent LT in Kyoto University Hospital. We characterized the microbial compositions of fecal specimens from LT patients using a metagenomics approach by an Illumina MiSeq platform...
April 2017: Transplantation Direct
https://www.readbyqxmd.com/read/28402152/daptomycin-nonsusceptible-vancomycin-resistant-enterococcus-bloodstream-infections-in-patients-with-hematological-malignancies-risk-factors-and-outcomes
#19
Erica S Herc, Carol A Kauffman, Bernard L Marini, Anthony J Perissinotti, Marisa H Miceli
Daptomycin is typically the treatment of choice for vancomycin resistant Enterococcus (VRE) bloodstream infections (BSI) in patients with hematological malignancies, but increasingly daptomycin nonsusceptible VRE are being reported. We reviewed our experience with daptomycin nonsusceptible VRE BSI among patients with hematological malignancies. We compared risk factors and outcomes of 20 patients with daptomycin nonsusceptible VRE BSI (case patients) with 40 matched control patients with daptomycin susceptible VRE BSI...
April 12, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28400525/manipulation-of-the-host-cell-membrane-during-plasmodium-liver-stage-egress
#20
Paul-Christian Burda, Reto Caldelari, Volker T Heussler
A crucial step in the life cycle of Plasmodium parasites is the transition from the liver stage to the blood stage. Hepatocyte-derived merozoites reach the blood vessels of the liver inside host cell-derived vesicles called merosomes. The molecular basis of merosome formation is only partially understood. Here we show that Plasmodium berghei liver stage merozoites, upon rupture of the parasitophorous vacuole membrane, destabilize the host cell membrane (HCM) and induce separation of the host cell actin cytoskeleton from the HCM...
April 11, 2017: MBio
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