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Clostridium difficile AND PCR

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https://www.readbyqxmd.com/read/28318702/antibiotic-associated-diarrhea-clinical-characteristics-and-the-presence-of-clostridium-difficile
#1
A Rodríguez-Varón, O M Muñoz, J Pulido-Arenas, S B Amado, M Tobón-Trujillo
INTRODUCTION AND AIMS: Evidence in Colombia and Latin America has been insufficient for establishing the clinical characteristics of patients with antibiotic-associated diarrhea (AAD). The present study attempts to describe the clinical characteristics of patients with AAD and to determine the presence of Clostridium difficile, utilizing the polymerase chain reaction (PCR) technique. MATERIALS AND METHODS: Forty-three patients with AAD, managed at the Hospital Universitario San Ignacio in Bogota, Colombia, were evaluated...
March 15, 2017: Revista de Gastroenterología de México
https://www.readbyqxmd.com/read/28303388/the-impact-of-antibiotic-stewardship-programs-in-combating-quinolone-resistance-a-systematic-review-and-recommendations-for-more-efficient-interventions
#2
REVIEW
Vasiliki Pitiriga, Georgia Vrioni, George Saroglou, Athanasios Tsakris
Quinolones are among the most commonly prescribed antibiotics worldwide. A clear relationship has been demonstrated between excessive quinolone use and the steady increase in the incidence of quinolone-resistant bacterial pathogens, both in hospital and community sites. In addition, exposure to quinolones has been associated with colonization and infection with healthcare-associated pathogens such as methicillin-resistant Staphylococcus aureus and Clostridium difficile in hospitalized patients. Therefore, the management of quinolone prescribing in hospitals through antibiotic stewardship programs is considered crucial...
March 16, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28279489/epidemiology-and-risk-factors-for-clostridium-difficile-infection-in-critically-ill-patients-in-spain-the-procrid-study
#3
Antonio Gutiérrez-Pizarraya, Luis Martín-Villén, Luis Alcalá-Hernández, Mercedes Marín Arriaza, Bárbara Balandín-Moreno, César Aragón-González, José Ferreres-Franco, Miguel Ángel Chiveli Monleón, Paloma Anguita-Alonso, Emilio Bouza-Santiago, José Garnacho-Montero
INTRODUCTION: Our objectives were to describe the incidence, clinical characteristics, and risk factors for Clostridium difficile infection (CDI) in critically ill patients and to determine C. difficile PCR-ribotypes. METHODS: Prospective, observational study in 26 Spanish ICUs. Patients with diarrhea meeting ESCMID criteria for CDI were included. Molecular characterization of isolates was performed using PCR ribotyping. RESULTS: Of 4258 patients admitted to the ICUs, 190 (4...
March 6, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/28274126/-selection-of-laboratory-procedures-to-detect-toxigenic-by-the-2-step-method
#4
Yoko Tanino, Mai Kodama, Hiroomi Daicho, Yoshito Miyauchi, Towa Yasumoto, Yukiji Yamada, Noriko Kyotani, Satoko Kurahashi, Masaji Ushiyama, Takeshi Kimura, Toshiaki Komori, Yumiko Fujitomo, Masaki Nakanishi, Naohisa Fujita
The 2-step method is an algorithm to detect toxigenic Clostridium difficile. We herein compared the sensitivities and specificities of an enzyme immunoassay (toxin A/B-EIA), toxigenic culture (TC-EIA), Loop-Mediated Isothermal Amplification assay (LAMP), and Xpert C. difficile (Xpert) with the detection of the toxin B gene by a polymerase chain reaction (PCR). The results obtained showed that the sensitivities and specificities of toxin A/B-EIA, Xpert, TC-EIA, and LAMP were 30 and 100%, 87.2 and 100%, 97.5 and 89...
March 22, 2017: JARMAM: Journal of the Association for Rapid Method and Automation in Microbiology
https://www.readbyqxmd.com/read/28251812/risk-factors-and-clinical-outcome-of-clostridium-difficile-infection-in-patients-with-ibd-a-chinese-single-center-retrospective-study-of-260-cases
#5
YuBei Gu, Mao Chen Zhang, Jing Sun, KeZhi Lv, Jie Zhong
AIM: Clostridium difficile infection(CDI) may lead to poor outcome in inflammatory bowel disease(IBD) patients. This study was designed to investigate the cumulative incidence, risk factors, and outcome of CDI in patients with IBD in one Chinese single center. METHODS: Clinical features and endoscopic profiles of consecutive IBD patients from RuiJin Hospital between January 2013 and December 2015 were analyzed retrospectively. CDI was diagnosed based on the positive polymerase chain reaction (PCR)-based stool test...
March 2, 2017: Journal of Digestive Diseases
https://www.readbyqxmd.com/read/28219893/toxin-positive-clostridium-difficile-latently-infect-mouse-colonies-and-protect-against-highly-pathogenic-c-difficile
#6
Lucie Etienne-Mesmin, Benoit Chassaing, Oluwaseyi Adekunle, Lisa M Mattei, Frederic D Bushman, Andrew T Gewirtz
OBJECTIVE: Clostridium difficile is a toxin-producing bacterium and a leading cause of antibiotic-associated disease. The ability of C. difficile to form spores and infect antibiotic-treated persons at low multiplicity of infection (MOI) underlies its large disease burden. However, C. difficile-induced disease might also result from long-harboured C. difficile that blooms in individuals administered antibiotics. DESIGN: Mice purchased from multiple vendors and repeatedly testing negative for this pathogen by quantitative PCR bloomed C...
February 20, 2017: Gut
https://www.readbyqxmd.com/read/28215602/clostridium-difficile-infection-in-acute-flares-of-inflammatory-bowel-disease-a-prospective-study
#7
Harry Sokol, Valérie Lalande, Cecilia Landman, Anne Bourrier, Isabelle Nion-Larmurier, Sylvie Rajca, Julien Kirchgesner, Philippe Seksik, Jacques Cosnes, Frédéric Barbut, Laurent Beaugerie
OBJECTIVES: Clostridium difficile infection (CDI) is a common complication in inflammatory bowel disease (IBD) and has been associated with poor IBD outcome. The aims of our study were to look for predictive factors of CDI in patients hospitalized for IBD flare and to evaluate a rapid testing strategy in this population. METHODS: Consecutive patients hospitalized for IBD flare in Saint-Antoine Hospital (Paris, France) were prospectively tested for CDI with a defined strategy involving rapid testing and reference methods...
January 30, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28192156/evaluation-of-two-novel-chemiluminescence-immunoassays-for-the-detection-of-clostridium-difficile-glutamate-dehydrogenase-and-toxin-a-b
#8
Annette Blaich, Reno Frei, Carine Castellano, Christine Kiessling, Angelika Geschke, Katharina M Rentsch, Adrian Egli
A novel immunoassay for Clostridium difficile glutamate dehydrogenase (GDH) and toxin A&B (LIAISON, DiaSorin) was compared to another GDH assay (Alere), PCR and toxigenic culture. The GDH-DiaSorin is slightly more sensitive than the GDH-Alere. Sensitivity of the Toxin-Diasorin test is in accordance to the sensitivity of other immunoassays in literature.
February 10, 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28187144/a-mathematical-model-of-clostridium-difficile-transmission-in-medical-wards-and-a-cost-effectiveness-analysis-comparing-different-strategies-for-laboratory-diagnosis-and-patient-isolation
#9
Vered Schechner, Yehuda Carmeli, Moshe Leshno
BACKGROUND: Clostridium difficile infection (CDI) is a common and potentially fatal healthcare-associated infection. Improving diagnostic tests and infection control measures may prevent transmission. We aimed to determine, in resource-limited settings, whether it is more effective and cost-effective to allocate resources to isolation or to diagnostics. METHODS: We constructed a mathematical model of CDI transmission based on hospital data (9 medical wards, 350 beds) between March 2010 and February 2013...
2017: PloS One
https://www.readbyqxmd.com/read/28182338/evaluation-of-nested-polymerase-chain-reaction-and-immunoassay-for-rapid-diagnosis-of-clostridium-difficile-in-children-with-community-acquired-diarrhea
#10
Ahmed Elewa, Maysaa El Sayed-Zaki
BACKGROUND: Clostridium difficile (C. difficile) is a known pathogen associated with diarrhea especially in hospital acquired diarrhea. Yet, it is being recognized as a probable etiology for community acquired diarrhea. The aim of the present study was to detect the presence of C. difficile as a pathogen causing community acquired diarrhea in children and to verify the value of different laboratory methods for diagnosis, namely specific culture, immunoassay for toxin detection, and nested polymerase chain reaction (nested-PCR)...
February 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28181032/comprehensive-evaluation-of-chemiluminescent-immunoassays-for-the-laboratory-diagnosis-of-clostridium-difficile-infection
#11
A Makristathis, I Zeller, D Mitteregger, M Kundi, A M Hirschl
For the microbiological diagnosis of a Clostridium (C.) difficile infection (CDI), a two-test algorithm consisting of a C. difficile glutamate dehydrogenase (GDH)-immunoassay followed by a toxin-immunoassay in positive cases is widely used. In this study, two chemiluminescent immunoassays (CLIAs), one for GDH and the other for the toxins A and B, have been evaluated systematically using appropriate reference methods. Three-hundred diarrhoeal stool specimens submitted for CDI diagnosis were analysed by the LIAISON CLIAs (DiaSorin)...
February 8, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28170133/optimal-strategies-for-the-diagnosis-of-community-onset-diarrhea-in-solid-organ-transplant-recipients-less-is-more
#12
Sonya A Trinh, Ignacio A Echenique, Sudhir Penugonda, Michael P Angarone
BACKGROUND: Diarrhea, a common complication after solid organ transplant (SOT), is associated with allograft failure and death. No evidence-based guidelines exist for the evaluation of diarrhea in SOT recipients. We performed a cost analysis to derive a testing algorithm for the diagnosis of community-onset diarrhea that minimizes costs without compromising diagnostic yields. DESIGN: A cost analysis was performed on a retrospective cohort of 422 SOT admissions for community-onset diarrhea over an 18-month period...
February 7, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28164522/detection-of-clostridium-difficile-in-fecal-specimens-a-comparative-evaluation-of-nucleic-acid-amplification-test-and-toxigenic-culture
#13
Shima Lotfian, Masoumeh Douraghi, Amir Aliramezani, Sedighe Ghourchian, Abdolfatah Sarrafnejad, Hojjat Zeraati
BACKGROUND: The available data regarding Clostridium difficile infections (CDIs) in developing countries are scarce. This may be related in part to the complexity of anaerobic bacterial culture and/or cytotoxicity assays of C. difficile. Here, we evaluated the diagnostic efficacy of PCR in comparison with toxigenic culture for direct detection of conserved genes as well as toxin genes of C. difficile in fecal specimens of patients with clinical symptoms of CDI. METHODS: Loose or soft feces from 171 patients suspected of having C...
October 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28145650/epidemiology-and-factors-related-to-clinical-severity-of-acute-gastroenteritis-in-hospitalized-children-after-the-introduction-of-rotavirus-vaccination
#14
Ahlee Kim, Ju Young Chang, Sue Shin, Hana Yi, Jin Soo Moon, Jae Sung Ko, Sohee Oh
We aimed to investigate epidemiology and host- and pathogen-related factors associated with clinical severity of acute gastroenteritis (AGE) in children after rotavirus vaccination introduction. Factors assessed included age, co-infection with more than 2 viruses, and virus-toxigenic Clostridium difficile co-detection. Fecal samples and clinical information, including modified Vesikari scores, were collected from hospitalized children with AGE. The presence of enteric viruses and bacteria, including toxigenic C...
March 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28145453/high-prevalence-of-toxigenic-clostridium-difficile-in-public-space-lawns-in-western-australia
#15
Peter Moono, Su Chen Lim, Thomas V Riley
Clostridium difficile is a well-established hospital pathogen. Recently, it has been detected increasingly in patients without hospital contact. Given this rise in community associated infections with C. difficile, we hypothesized that the environment could play an important role in transmission of spores outside the hospital. Lawn samples (311) collected in public spaces in the metropolitan area of Perth, Western Australia, from February to June 2016 were cultured for C. difficile. C. difficile was isolated from the samples by direct and enrichment culture, and characterized by standard molecular methods using toxin gene PCR and ribotyping...
February 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28122874/is-follow-up-testing-with-filmarray-gastrointestinal-multiplex-pcr-panel-necessary
#16
Sholhui Park, Matthew M Hitchcock, Carlos A Gomez, Niaz Banaei
FilmArray GI Panel (BioFire Diagnostics, Salt Lake City, UT) is a simple, sample-to-answer, on-demand, multiplex, nucleic acid amplification test for syndromic diagnosis of infectious gastroenteritis. The aim of this study was to measure the yield of follow-up testing with FilmArray GI Panel within 4 weeks of an initial test. Consecutive adult and pediatric patients tested at an academic institution between August 2015 and June 2016 were included in this study. Of 145 follow-up tests in 106 unique patients with an initial negative result, 134 (92...
January 25, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28119780/prevalence-and-molecular-epidemiology-of-clostridium-difficile-infection-in-thailand
#17
P Putsathit, M Maneerattanaporn, P Piewngam, P Kiratisin, T V Riley
Little is known about Clostridium difficile infection (CDI) in Asia generally, and specifically in Thailand. Given the high prevalence of inappropriate antibiotic usage in this region, CDI is likely to be common. This study investigated the prevalence and molecular epidemiology of CDI in Thailand. Stool specimens collected from inpatients with diarrhoea at Siriraj hospital in Bangkok (n = 422) were cultured on ChromID Cdiff agar and any presumptive C. difficile colonies were identified, PCR ribotyped and toxin profiled...
January 2017: New Microbes and New Infections
https://www.readbyqxmd.com/read/28116592/clostridium-difficile-infection-and-patient-specific-antimicrobial-resistance-testing-reveals-a-high-metronidazole-resistance-rate
#18
Jodie A Barkin, Daniel A Sussman, Nimita Fifadara, Jamie S Barkin
BACKGROUND: Clostridium difficile (CD) infection (CDI) causes marked morbidity and mortality, accounting for large healthcare expenditures annually. Current CDI treatment guidelines focus on clinical markers of patient severity to determine the preferred antibiotic regimen of metronidazole versus vancomycin. The antimicrobial resistance patterns for patients with CD are currently unknown. AIM: The aim of this study was to define the antimicrobial resistance patterns for CD...
January 23, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28110780/subtyping-and-antimicrobial-susceptibility-of-clostridium-difficile-pcr-ribotype-078-126-isolates-of-human-and-animal-origin
#19
Sergio Álvarez-Pérez, José L Blanco, Celine Harmanus, Ed Kuijper, Marta E García
The Clostridium difficile PCR ribotype complex 078/126 (RT078/126) is often involved in human disease and is also frequently isolated from diverse animal species. The high genetic relatedness between human and animal RT078/126 isolates found in different regions has encouraged discussion about the zoonotic potential of this lineage. We compared for the first time the genetic diversity and antimicrobial susceptibility profiles of human and animal C. difficile RT078/126 isolates from Spain. A collection of 96 isolates (50 of human and 46 of animal origin; 63 and 33 of ribotypes 078 and 126, respectively) was subtyped by an improved amplified fragment length polymorphism (AFLP) fingerprinting method and tested for in vitro antimicrobial susceptibility...
February 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28087170/clostridium-difficile-rates-in-asymptomatic-and-symptomatic-hospitalized-patients-using-nucleic-acid-testing
#20
Cynthia Truong, Lee F Schroeder, Rajiv Gaur, Victoria Emma Anikst, Ikuko Komo, Colleen Watters, Erin McCalley, Carole Kulik, David Pickham, Nancy J Lee, Niaz Banaei
BACKGROUND: The Clostridium difficile rate in symptomatic patients represents both those with C. difficile infection (CDI) and those with colonization. To predict the extent of CDI overdiagnosis, we compared the asymptomatic colonization rate to the symptomatic positivity rate in hospitalized patients using nucleic acid testing. METHODS: Between July 2014 and April 2015, formed stool samples were collected from asymptomatic patients after admission to 3 hospital wards at the Stanford Hospital...
April 2017: Diagnostic Microbiology and Infectious Disease
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