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https://www.readbyqxmd.com/read/28751156/performance-evaluation-of-the-verigene-%C3%A2-clostridium-difficile-nucleic-acid-test-an-automated-multiplex-molecular-testing-system-for-detection-of-c-%C3%A2-difficile-toxin
#1
Kosuke Kosai, Yuki Iwanaga, Norihiko Akamatsu, Yuya Okada, Norihito Kaku, Naoki Uno, Yoshitomo Morinaga, Hiroo Hasegawa, Taiga Miyazaki, Koichi Izumikawa, Hiroshi Mukae, Katsunori Yanagihara
The Verigene(®)Clostridium difficile nucleic acid test (Verigene(®) CDF test) is an automatic and rapid detection system for the genes encoding tcdA, tcdB, binary toxin, and the single nucleotide deletion at base pair 117 in the tcdC based on microarray and PCR amplification. We compared the performance of the Verigene(®) CDF test to that of two enzyme immunoassays, C. DIFF QUIK CHEK COMPLETE and X/Pect Toxin A/B, using 118 specimens. We found overall concordance rates of 81.4% and 78.8% between C. DIFF QUIK CHEK COMPLETE and Verigene(®) CDF test, and X/Pect Toxin A/B and Verigene(®) CDF test...
October 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28730697/impact-of-simultaneous-glutamate-dehydrogenase-gdh-and-toxin-a-b-rapid-immunoassay-on-clostridium-difficile-diagnosis-and-treatment-in-hospitalized-patients-with-antibiotic-associated-diarrhea-in-a-university-hospital-of-brazil
#2
Guilherme Grossi Lopes Cançado, Rodrigo Otávio Silveira Silva, Amanda Pontes Nader, Francisco Carlos Faria Lobato, Eduardo Garcia Vilela
BACKGROUND: Clostridium difficile is a major cause of health care-associated infection, but disagreement between diagnostic tests is an ongoing barrier to clinical decision making. Conventional enzyme immunoassay (EIA) for toxin detection is currently the most frequently used technique for CDI diagnosis, but its low sensitivity makes the development of an alternative strategy necessary for improving the diagnosis in developing countries. METHODS: Between years 2011 and 2015, 154 stool samples from patients with antibiotic-associated diarrhea were examined by toxigenic culture (TC) and EIA for the diagnosis of CDI...
July 20, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28707191/clostridium-difficile-colitis-and-colonoscopy-pediatric-perspective
#3
REVIEW
Randolph McConnie, Arthur Kastl
PURPOSE OF THE REVIEW: Review tests available for detection of Clostridium difficile (C. Diff) induced disease, including when such tests should be done in children and how they should be interpreted. RECENT FINDINGS: Multiple tests are available for detecting disease due to C. diff. These include colonoscopy and stool analysis. Colonoscopy with biopsy is the most sensitive test for detecting the presence of colitis. The toxins produced by the C. diff. (toxin A, toxin B, and binary toxin) are the agents that cause injury and disease...
August 2017: Current Gastroenterology Reports
https://www.readbyqxmd.com/read/28694862/primary-hepatic-marginal-zone-lymphoma-in-a-patient-with-chronic-hepatitis-c
#4
George S Gherlan, Razvan Stoia, Mihaly Enyedi, Camelia Dobrea, Petre I Calistru
Extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT) is a low-grade malignant lymphoma that appears frequently in the stomach, but other sites can also be involved: the intestinal tract, lungs, head, neck, skin, thyroid, breasts and liver. Recently, epidemiological evidences support the idea that there is an association between hepatitis C and B-cell non-Hodgkin lymphomas (that include MALT as a subtype). Primary non-Hodgkin lymphomas confi ned only to the liver are very rare (only 0...
September 2016: Mædica
https://www.readbyqxmd.com/read/28694852/does-the-genetic-cause-of-prader-willi-syndrome-explain-the-highly-variable-phenotype
#5
Andreea-Iulia Dobrescu, Adela Chirita-Emandi, Nicoleta Andreescu, Simona Farcas, Maria Puiu
INTRODUCTION: Prader-Willi syndrome (PWS) is characterized by extensive clinical and genetic variability caused by lack of expression of imprinted genes of the chromosomal region 15q11.2-q13. The genotye-phenotype correlation has not been yet fully elucidated. AIM: To analyze these correlations in order to determine the role of specifi c geneic alterations in the development of clinical symptoms in PWS. MATERIAL AND METHOD: We retrospectively analyzed data routinely collected as part of the clinical care of 52 patients with clinical suspicion of PWS...
September 2016: Mædica
https://www.readbyqxmd.com/read/28689260/extended-diffusion-weighted-magnetic-resonance-imaging-with-two-compartment-and-anomalous-diffusion-models-for-differentiation-of-low-grade-and-high-grade-brain-tumors-in-pediatric-patients
#6
Delilah Burrowes, Jason R Fangusaro, Paige C Nelson, Bin Zhang, Nitin R Wadhwani, Michael J Rozenfeld, Jie Deng
PURPOSE: The purpose of this study was to examine advanced diffusion-weighted magnetic resonance imaging (DW-MRI) models for differentiation of low- and high-grade tumors in the diagnosis of pediatric brain neoplasms. METHODS: Sixty-two pediatric patients with various types and grades of brain tumors were evaluated in a retrospective study. Tumor type and grade were classified using the World Health Organization classification (WHO I-IV) and confirmed by pathological analysis...
August 2017: Neuroradiology
https://www.readbyqxmd.com/read/28631639/prevalence-of-clostridium-difficile-infection-among-the-patients-attending-a-tertiary-care-teaching-hospital
#7
Lavanya Segar, Joshy M Easow, Sreenivasan Srirangaraj, Mohammad Hanifah, Noyal M Joseph, K S Seetha
BACKGROUND: Clostridium difficile, a most important nosocomial enteric pathogen, is recognized globally as responsible for antibiotic-associated diarrhea and colitis. It is associated with considerable morbidity and mortality due to widespread use of antibiotics. AIMS: The study was done to determine the prevalence of C. difficile infection (CDI) among the patients attending a tertiary care teaching hospital in Puducherry. SETTINGS AND DESIGN: We performed a prospective cohort study in Mahatma Gandhi Medical College and Research Institute...
April 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28615471/clostridium-difficile-pcr-cycle-threshold-predicts-free-toxin
#8
Fiona Senchyna, Rajiv L Gaur, Saurabh Gombar, Cynthia Y Truong, Lee F Schroeder, Niaz Banaei
There is no stand-alone Clostridium difficile diagnostic that can sensitively and rapidly detect fecal free toxins. We investigated the performance of the C. difficile PCR cycle threshold (CT ) for predicting free toxin status. Consecutive stool samples (n = 312) positive for toxigenic C. difficile by the GeneXpert C. difficile/Epi tcdB PCR assay were tested with the rapid membrane C. Diff Quik Chek Complete immunoassay (RMEIA). RMEIA toxin-negative samples were tested with the cell cytotoxicity neutralization assay (CCNA) and tgcBIOMICS enzyme-linked immunosorbent assay (ELISA)...
September 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28603640/prevalence-and-molecular-epidemiology-of-clostridium-difficile-infection-in-indonesia
#9
D A Collins, M H Gasem, T H Habibie, I G Arinton, P Hendriyanto, A P Hartana, T V Riley
Clostridium difficile has not been studied in detail in Asia, particularly Southeast Asia. We thus performed a prevalence study across four hospitals in Central Java province, Indonesia. Stool samples were collected from patients with diarrhoea and tested by enzyme immunoassay for glutamate dehydrogenase (GDH) and toxin A/B (C DIFF QUIK CHEK COMPLETE, TechLab). Specimens were cultured and molecular typing was performed. In total, 340 samples were tested, of which 70 (20.6%) were GDH positive, with toxin detected in 19 (5...
July 2017: New Microbes and New Infections
https://www.readbyqxmd.com/read/28596946/non-high-density-lipoprotein-fractions-are-strongly-associated-with-the-presence-of-metabolic-syndrome-independent-of-obesity-and-diabetes-a-population-based-study-among-iranian-adults
#10
Saeed Ghodsi, Alipasha Meysamie, Mehrshad Abbasi, Reza Ghalehtaki, Alireza Esteghamati, Masoud M Malekzadeh, Fereshteh Asgari, Mohammad M Gouya
BACKGROUND: Non-HDL-C as a valuable predictor of premature atherosclerosis, coronary events like first Myocardial infarction and cardiovascular mortality has a high accuracy of measurement both in fasting and non-fasting individuals. Metabolic syndrome (MetS) can promote the development of diabetes mellitus, endothelial dysfunction and atherosclerosis. A common pathway for cross linking of metabolic abnormalities and non-HDL-C has been suggested. In this study we aimed to describe the potential association between non-HDL cholesterol fractions and metabolic syndrome...
2017: Journal of Diabetes and Metabolic Disorders
https://www.readbyqxmd.com/read/28577545/the-effect-of-a-prenatal-lifestyle-intervention-on-glucose-metabolism-results-of-the-norwegian-fit-for-delivery-randomized-controlled-trial
#11
Linda R Sagedal, Ingvild Vistad, Nina C Øverby, Elling Bere, Monica K Torstveit, Hilde Lohne-Seiler, Elisabet R Hillesund, Are Pripp, Tore Henriksen
BACKGROUND: The effectiveness of prenatal lifestyle intervention to prevent gestational diabetes and improve maternal glucose metabolism remains to be established. The Norwegian Fit for Delivery (NFFD) randomized, controlled trial studied the effect of a combined lifestyle intervention provided to a general population, and found significantly lower gestational weight gain among intervention participants but no improvement in obstetrical outcomes or the proportion of large infants. The aim of the present study is to examine the effect of the NFFD intervention on glucose metabolism, including an assessment of the subgroups of normal-weight and overweight/obese participants...
June 2, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28576711/safety-and-efficacy-of-antibacterial-prophylaxis-after-craniotomy-a-decision-model-analysis
#12
Amal F Alotaibi, Rania A Mekary, Hasan A Zaidi, Timothy R Smith, Ankur Pandya
BACKGROUND: Antibiotic prophylaxis has revolutionized the safety of neurosurgical procedures in the last century. Today, the clinician's drug of choice before surgery often is based on the antibiotic's resistance profile and drug-induced complications. METHODS: A decision tree model was developed to compare cefazolin (cephalosporin), vancomycin, or their combination on 90-day mortality postcraniotomy. We modeled the infection type (methicillin-sensitive, methicillin-resistant, or other organisms), antibiotic-related complications that could affect mortality (e...
September 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28431306/difference-optimization-automatic-correction-of-relative-frequency-and-phase-for-mean-non-edited-and-edited-gaba-1-h-mega-press-spectra
#13
Marianne Cleve, Martin Krämer, Alexander Gussew, Jürgen R Reichenbach
Phase and frequency corrections of magnetic resonance spectroscopic data are of major importance to obtain reliable and unambiguous metabolite estimates as validated in recent research for single-shot scans with the same spectral fingerprint. However, when using the J-difference editing technique (1)H MEGA-PRESS, misalignment between mean edited (ON‾) and non-edited (OFF‾) spectra that may remain even after correction of the corresponding individual single-shot scans results in subtraction artefacts compromising reliable GABA quantitation...
April 7, 2017: Journal of Magnetic Resonance
https://www.readbyqxmd.com/read/28297240/analytical-comparison-between-two-hematological-analyzer-systems-cal-8000-vs-xn-9000
#14
COMPARATIVE STUDY
S Buoro, T Mecca, M Seghezzi, B Manenti, G Azzarà, P Dominoni, A Crippa, C Ottomano, G Lippi
INTRODUCTION: This study was aimed to compare the analytical performance of traditional and new parameters and morphological flags of CAL-8000 and XN-9000. The automated differential leukocyte count (DIFF profile) and morphological flags were compared with optical microscopy (OM). METHODS: A total of 1025 peripheral blood samples, collected in K3 EDTA tubes, were analyzed by CAL-8000, by XN-9000, and by OM. Within-run imprecision was performed in low cellularity samples...
April 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28215602/clostridium-difficile-infection-in-acute-flares-of-inflammatory-bowel-disease-a-prospective-study
#15
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...
June 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28181032/comprehensive-evaluation-of-chemiluminescent-immunoassays-for-the-laboratory-diagnosis-of-clostridium-difficile-infection
#16
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)...
July 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28177534/laboratory-diagnosis-of-clostridium-difficile-infection-comparison-of-techlab-c-diff-quik-chek-complete-xpert-c-difficile-and-multistep-algorithmic-approach
#17
Ja Young Seo, Ji Hun Jeong, Kyung Hee Kim, Jeong-Yeal Ahn, Pil-Whan Park, Yiel-Hea Seo
BACKGROUND: Clostridium difficile is a major pathogen responsible for nosocomial infectious diarrhea. We explored optimal laboratory strategies for diagnosis of C. difficile infection (CDI) in our clinical settings, a 1400-bed tertiary care hospital. METHODS: Using 191 fresh stool samples from adult patients, we evaluated the performance of Xpert C. difficile (Xpert CD), C. diff Quik Chek Complete (which simultaneously detects glutamate dehydrogenase [GDH] and C...
February 8, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28122653/delivery-as-trauma-a-prospective-time-cohort-study-of-maternal-and-perinatal-mortality-in-rural-cambodia
#18
Chandy Houy, Sam Ol Ha, Margit Steinholt, Eystein Skjerve, Hans Husum
OBJECTIVE: The majority of maternal and perinatal deaths are preventable, but still women and newborns die due to insufficient Basic Life Support in low-resource communities. Drawing on experiences from successful wartime trauma systems, a three-tier chain-of-survival model was introduced as a means to reduce rural maternal and perinatal mortality. METHODS: A study area of 266 villages in landmine-infested Northwestern Cambodia were selected based on remoteness and poverty...
January 26, 2017: Prehospital and Disaster Medicine
https://www.readbyqxmd.com/read/28059711/t1-recovery-is-predominantly-found-in-black-holes-and-is-associated-with-clinical-improvement-in-patients-with-multiple-sclerosis
#19
C Thaler, T D Faizy, J Sedlacik, B Holst, K Stürner, C Heesen, J-P Stellmann, J Fiehler, S Siemonsen
BACKGROUND AND PURPOSE: Quantitative MR imaging parameters help to evaluate disease progression in multiple sclerosis and increase correlation with clinical disability. We therefore hypothesized that T1 values might be a marker for ongoing tissue damage or even remyelination and may help increase clinical correlation. MATERIALS AND METHODS: MR imaging was performed in 17 patients with relapsing-remitting MS at baseline and after 12 months of starting immunotherapy with dimethyl fumarate...
February 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28046282/su-g-tep4-12-individual-beam-qa-for-a-robotic-radiosurgery-system-using-a-scintillator-cone
#20
C McGuinness, M Descovich, A Sudhyadhom
PURPOSE: The targeting accuracy of the Cyberknife system is measured by end-to-end tests delivering multiple isocentric beams to a point in space. While the targeting accuracy of two representative beams can be determined by a Winston-Lutz-type test, no test is available today to determine the targeting accuracy of each clinical beam. We used a scintillator cone to measure the accuracy of each individual beam. METHODS: The XRV-124 from Logos Systems Int'l is a scintillator cone with an imaging system that is able to measure individual beam vectors and a resulting error between planned and measured beam coordinates...
June 2016: Medical Physics
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