نتایج جستجو برای: xpert mtbrif assay

تعداد نتایج: 222590  

Journal: :Annals of the Rheumatic Diseases 2023

Background Diagnostic delay and drug resistance not only worsen the outcomes of tuberculosis, but are also important impediments to TB elimination efforts. Prompt accurate diagnosis osteoarticular tuberculosis (OATB) along with simultaneous detection is crucial decrease morbidity associated sequelae. Objectives Given need for a near point-of-care test suitable primary healthcare centers resista...

2017
Giulia Lombardi Valentina Di Gregori Nicolò Girometti Marina Tadolini Francesco Bisognin Paola Dal Monte

BACKGROUND Diagnosis of pulmonary (PTB) and extra-pulmonary tuberculosis (EPTB) in smear-negative patients can be difficult. We assessed retrospectively the performance of Xpert MTB/RIF system (Xpert, Cepheid) in diagnosing smear-negative tuberculosis (TB), which represents the most common form of TB in a low incidence setting. METHODS Performance of Xpert was compared to acid-fast microscopi...

Journal: :Journal of clinical microbiology 2014
Raymond Widen Vicki Healer Suzane Silbert

A comparison between the BD MAX MRSA and Xpert MRSA assays was performed using 239 nares samples. A 97.9% overall agreement between the two molecular assays was observed. The BD MAX MRSA assay proved to be a reliable alternative for a highly automated system to detect methicillin-resistant Staphylococcus aureus (MRSA) in patient nares samples.

2016
Andrea Cortegiani Vincenzo Russotto Giorgio Graziano Daniela Geraci Laura Saporito Gianfranco Cocorullo Santi Maurizio Raineri Caterina Mammina Antonino Giarratano

Early institution of effective antibiotic therapy and source control are pivotal to improve survival of abdominal septic patients. Xpert® Carba-R is a real time polymerase chain reaction assay for rapid detection and differentiation of five genes (blaKPC, blaVIM, blaOXA-48, blaIMP-1, blaNDM) responsible for carbapenem resistance. We performed an observational study investigating the clinical us...

Journal: :Journal of Pure and Applied Microbiology 2022

Tuberculosis (TB) is a serious and important public health issue to be addressed in India. Timely diagnosis of the drug resistance tuberculosis essential ensure initiate appropriate therapy. The detection resistant Mycobacterium (MTB) cases smear-negative clinical diagnosed pulmonary TB. A prospective case-control study was conducted on 473 samples received at tertiary care center from January ...

2014
Nomonde R Dlamini-Mvelase Lise Werner Rogerio Phili Lindiwe P Cele Koleka P Mlisana

BACKGROUND An algorithm instituted following Xpert MTB/RIF (Xpert) introduction in South Africa advocates for treating all Xpert rifampicin resistant patients as MDR-TB cases while awaiting confirmation by phenotypic or genotypic drug susceptibility testing. This study evaluates how the Xpert has influenced the diagnosis and management of drug resistant TB in the highest burdened district of Kw...

Journal: :Tuberculosis 2016
Jennifer L Reed Zachary J Walker Debby Basu Veronica Allen Mark P Nicol David M Kelso Sally M McFall

Nucleic acid amplification tests for Mycobacterium tuberculosis (MTB) detection from sputum are highly sensitive and specific with smear microscopy positive specimens, but their sensitivity with smear-negative/culture-positive specimens is much lower; therefore, these tests cannot rule out a tuberculosis diagnosis. Co-extraction of PCR inhibitors may be a cause of decreased test sensitivity. He...

2018
Nathan C Bahr Edwin Nuwagira Emily E Evans Fiona V Cresswell Philip V Bystrom Adolf Byamukama Sarah C Bridge Ananta S Bangdiwala David B Meya Claudia M Denkinger Conrad Muzoora David R Boulware Darlisha A Williams Kabanda Taseera Dan Nyehangane Mugisha Ivan Patrick Orikiriza Joshua Rhein Kathy Huppler Hullsiek Abdu Musubire Katelyn Pastick Pamela Nabeta James Mwesigye Radha Rajasingham

BACKGROUND WHO recommends Xpert MTB/RIF as initial diagnostic testing for tuberculous meningitis. However, diagnosis remains difficult, with Xpert sensitivity of about 50-70% and culture sensitivity of about 60%. We evaluated the diagnostic performance of the new Xpert MTB/RIF Ultra (Xpert Ultra) for tuberculous meningitis. METHODS We prospectively obtained diagnostic cerebrospinal fluid (CSF...

2016
Ankur Gupta-Wright Katherine L Fielding Joep J van Oosterhout Douglas K Wilson Elizabeth L Corbett Clare Flach Krishna P Reddy Rochelle P Walensky Jurgens A Peters Melanie Alufandika-Moyo Stephen D Lawn

BACKGROUND HIV-associated tuberculosis (TB) co-infection remains an enormous burden to international public health. Post-mortem studies have highlighted the high proportion of HIV-positive adults admitted to hospital with TB. Determine TB-LAM and Xpert MTB/RIF assays can substantially increase diagnostic yield of TB within one day of hospital admission. However, it remains unclear if this appro...

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