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https://www.readbyqxmd.com/read/27913043/evaluation-of-the-genexpert-mtb-rif-assay-on-extrapulmonary-and-respiratory-samples-other-than%C3%A2-sputum-a-low-burden-country-experience
#1
Sushil Pandey, Jacob Congdon, Bradley McInnes, Alina Pop, Christopher Coulter
The aim of this study was to assess the performance of the GeneXpert MTB/RIF assay on extrapulmonary (EP) and respiratory (non-sputum) clinical samples of patients suspected of having tuberculosis (TB) from Queensland, Australia. A total of 269 EP and respiratory (non-sputum) clinical samples collected from Qld patients who were suspected of having TB were subjected to the GeneXpert MTB/RIF analysis, Ziehl-Neelsen (ZN) staining, Mycobacterium tuberculosis (MTB) culture and drug susceptibility testing. Phenotypic and genotypic data were compared...
November 29, 2016: Pathology
https://www.readbyqxmd.com/read/27911922/nucleic-acid-amplification-testing-and-sequencing-combined-with-acid-fast-staining-in-needle-biopsy-lung-tissues-for-the-diagnosis-of-smear-negative-pulmonary-tuberculosis
#2
Faming Jiang, Weiwei Huang, Ye Wang, Panwen Tian, Xuerong Chen, Zongan Liang
BACKGROUND: Smear-negative pulmonary tuberculosis (PTB) is common and difficult to diagnose. In this study, we investigated the diagnostic value of nucleic acid amplification testing and sequencing combined with acid-fast bacteria (AFB) staining of needle biopsy lung tissues for patients with suspected smear-negative PTB. METHODS: Patients with suspected smear-negative PTB who underwent percutaneous transthoracic needle biopsy between May 1, 2012, and June 30, 2015, were enrolled in this retrospective study...
2016: PloS One
https://www.readbyqxmd.com/read/27906986/cost-effectiveness-of-community-based-tb-hiv-screening-and-linkage-to-care-in-rural-south-africa
#3
Jennifer A Gilbert, Sheela V Shenoi, Anthony P Moll, Gerald H Friedland, A David Paltiel, Alison P Galvani
South Africa has one of the highest burdens of TB worldwide, driven by the country's widespread prevalence of HIV, and further complicated by drug resistance. Active case finding within the community, particularly in rural areas where healthcare access is limited, can significantly improve diagnosis and treatment coverage in high-incidence settings. We evaluated the potential health and economic consequences of implementing community-based TB/HIV screening and linkage to care. Using a dynamic model of TB and HIV transmission over a time horizon of 10 years, we compared status quo TB/HIV control to community-based TB/HIV screening at frequencies of once every two years, one year, and six months...
2016: PloS One
https://www.readbyqxmd.com/read/27906009/current-trends-and-intricacies-in-the-management-of-hiv-associated-pulmonary-tuberculosis
#4
REVIEW
Narendran Gopalan, Padmapriyadarsini Chandrasekaran, Soumya Swaminathan, Srikanth Tripathy
Human immunodeficiency virus (HIV) epidemic has undoubtedly increased the incidence of tuberculosis (TB) globally, posing a formidable global health challenge affecting 1.2 million cases. Pulmonary TB assumes utmost significance in the programmatic perspective as it is readily transmissible as well as easily diagnosable. HIV complicates every aspect of pulmonary tuberculosis from diagnosis to treatment, demanding a different approach to effectively tackle both the diseases. In order to control these converging epidemics, it is important to diagnose early, initiate appropriate therapy for both infections, prevent transmission and administer preventive therapy...
September 26, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27900592/tuberculosis-among-incarcerated-hispanic-persons-in-the-united-states-1993-2014
#5
Godwin Mindra, Jonathan M Wortham, Maryam B Haddad, Jorge L Salinas, Krista M Powell, Lori R Armstrong
We examined the National tuberculosis surveillance system to describe Hispanic persons who were incarcerated at time of tuberculosis (TB) diagnosis and to compare their characteristics with those of non-Hispanic incarcerated TB patients. After declines between 1993 and 2002, the annual proportion of Hispanic TB patients who were incarcerated grew from 4.9% in 2003 to 8.4% in 2014. During 2003-2014, 19% of incarcerated US-born TB patients were Hispanic, and 86% of the foreign-born were Hispanic. Most incarcerated TB patients were in local jails, but about a third of all foreign-born Hispanics were in the facility category that includes Immigration and Customs Enforcement detention centers...
November 29, 2016: Journal of Immigrant and Minority Health
https://www.readbyqxmd.com/read/27899066/predictive-factors-for-unfavorable-outcomes-of-tuberculous-pericarditis-in-human-immunodeficiency-virus-uninfected-patients-in-an-intermediate-tuberculosis-burden-country
#6
In Young Jung, Young Goo Song, Jun Yong Choi, Moo Hyun Kim, Woo Yong Jeong, Dong Hyun Oh, Yong Chan Kim, Je Eun Song, Eun Jin Kim, Ji Un Lee, Su Jin Jeong, Nam Su Ku, June Myung Kim
BACKGROUND: In areas where Mycobacterium tuberculosis is endemic, tuberculosis is known to be the most common cause of pericarditis. However, the difficulty in diagnosis may lead to late complications such as constrictive pericarditis and increased mortality. Therefore, identification of patients at a high risk for poor prognosis, and prompt initiation of treatment are important in the outcome of TB pericarditis. The aim of this study is to identify the predictive factors for unfavorable outcomes of TB pericarditis in HIV-uninfected persons in an intermediate tuberculosis burden country...
November 29, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27891359/diabetes-mellitus-among-newly-diagnosed-tuberculosis-patients-in-tribal-odisha-an-exploratory-study
#7
Magna Manjareeka, Subrata Kumar Palo, Subhashisa Swain, Sandipana Pati, Sanghamitra Pati
INTRODUCTION: The association between Diabetes Mellitus (DM) and Tuberculosis (TB) poses a strong public health challenge. Tribal ethnics possess a different propensity towards infectious and haematological diseases which may influence the inter-relationship of DM and TB and thus merit separate attention. AIM: To investigate the prevalence of diabetes in newly diagnosed pulmonary TB patients of tribal ethnicity in Odisha. MATERIALS AND METHODS: A cross-sectional study was carried out over a period of 9 months at four designated TB microscopic centres in a tribal district (Malkangiri) of Odisha...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27888000/enhanced-laboratory-capacity-development-a-boost-for-effective-tb-control-in-resource-limited-settings
#8
Abraham Sunday Alabi, Afsatou Ndama Traoré, Marguerite Massinga Loembe, Ulysse Ateba-Ngoa, Matthias Frank, Ayola Akim Adegnika, Bertrand Lell, Jocelyn Mahoumbou, Carsten Köhler, Peter Gottfried Kremsner, Martin Peter Grobusch
Both routine and research tuberculosis laboratory capacity urgently need to be expanded in large parts of sub-Saharan Africa. In 2009, the "Centre de Recherches Médicales de Lambaréné" (CERMEL), took a strategic decision to expand its activities by building tuberculosis (TB) laboratory capacity to address research questions and to improve routine diagnostic and treatment capacity. Over those past seven years, we have developed a standard a standard laboratory contributing significantly to TB diagnosis, treatment and control in Gabon; and providing training for TB research staff in Central Africa...
November 22, 2016: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/27887600/individual-household-and-community-level-factors-associated-with-keeping-tuberculosis-status-secret-in-ghana
#9
Joshua Amo-Adjei
BACKGROUND: In tuberculosis (TB) control, early disclosure is recommended for the purposes of treatment as well as a means of reducing or preventing person-to-person transmission of the bacteria. However, disclosure maybe avoided as a means of escaping stigma, and possible discrimination. This study aimed at providing insights into factors associated with intentions of Ghanaians to keep positive TB diagnosis in their families' a secret. METHODS: The paper was based on data from the 2014 Ghana Demographic and Health Survey...
November 25, 2016: BMC Public Health
https://www.readbyqxmd.com/read/27886784/tuberculosis-and-the-heart
#10
REVIEW
Arthur K Mutyaba, Mpiko Ntsekhe
Owing to the high prevalence of tuberculosis (TB) and human immunodeficiency virus/AIDS, tuberculous heart disease remains an important problem in TB endemic areas. In this review, we reiterate salient aspects of the traditional understanding and approach to its management, and provide important updates on the pathophysiology, diagnosis, and treatment garnered over the past decade of focused clinical and basic science research. We emphasize that, if implemented widely, these improved evidence-based approaches to the disease can build on the early progress made in treating tuberculous heart disease and help further the goal of significantly reducing its historically high morbidity and mortality...
February 2017: Cardiology Clinics
https://www.readbyqxmd.com/read/27879136/optimal-control-of-a-tuberculosis-model-with-state-and-control-delays
#11
Cristiana J Silva, Helmut Maurer, Delfim F M Torres
We introduce delays in a tuberculosis (TB) model, representing the time delay on the diagnosis and commencement of treatment of individuals with active TB infection. The stability of the disease free and endemic equilibriums is investigated for any time delay. Corresponding optimal control problems, with time delays in both state and control variables, are formulated and studied. Although it is well-known that there is a delay between two to eight weeks between TB infection and reaction of body's immune system to tuberculin, delays for the active infected to be detected and treated, and delays on the treatment of persistent latent individuals due to clinical and patient reasons, which clearly justifies the introduction of time delays on state and control measures, our work seems to be the first to consider such time-delays for TB and apply time-delay optimal control to carry out the optimality analysis...
February 1, 2017: Mathematical Biosciences and Engineering: MBE
https://www.readbyqxmd.com/read/27869926/-delay-in-tuberculosis-diagnosis-in-adults-in-a-city-of-s%C3%A3-o-paulo-state-brazil-in-2009-a-cross-sectional-study
#12
Maria Amélia Zanon Ponce, Anneliese Domingues Wysocki, Tiemi Arakawa, Rubia Laine de Paula Andrade, Silvia Helena Figueiredo Vendramini, Reinaldo Antônio da Silva, Aline Aparecida Monroe, Antonio Ruffino Netto, Tereza Cristina Scatena Villa
OBJECTIVE: to evaluate patient and health service characteristics associated with tuberculosis (TB) diagnosis delay. METHODS: this was a cross-sectional study conducted in São José do Rio Preto-SP in 2009; the 'entry point' and 'access to diagnosis' dimensions of the Primary Care Assessment Tool (PCAT) were selected to analyze patient and HS delay. RESULTS: 99 TB patients were included in the study; the median time related to patient and HS delay was 15 days; delay in seeking services was lower among smokers (PR= 0...
July 2016: Epidemiologia e Servicos de Saude: Revista do Sistema Unico de Saude do Brasil
https://www.readbyqxmd.com/read/27867751/t7-phage-display-library-a-promising-strategy-to-detect-tuberculosis-specific-biomarkers
#13
Harvinder Talwar, Jaya Talreja, Lobelia Samavati
One-third of the world's population is infected with tuberculosis, only 10% will develop active disease and the remaining 90% is considered to have latent TB (LTB). While active TB is contagious and can be lethal, the LTB can evolve to active TB. The diagnosis of TB can be challenging, especially in the early stages, due to the variability in presentation and nonspecific signs and symptoms. Currently, we have limited tools available to diagnose active TB, predict treatment efficacy and cure of active tuberculosis, the reactivation of latent tuberculosis infection, and the induction of protective immune responses through vaccination...
June 2016: Mycobacterial Diseases: Tuberculosis & Leprosy
https://www.readbyqxmd.com/read/27866961/paradoxical-results-of-two-automated-real-time-pcr-assays-in-the-diagnosis-of-pleural-tuberculosis
#14
Soraya E Morales-López, Jayr A Yepes, Irina Anzola, Hernán Aponte, Claudia R Llerena-Polo
Tuberculosis (TB) is a major cause of worldwide mortality. We report the case of a non-HIV-infected woman with clinical suspicion of pleural tuberculosis and contradictory results between Xpert(®) MTB/RIF and Abbott RealTime MTB assays from pleural fluid specimen. Liquid and solid cultures for tuberculosis were performed with negative results. The patient received treatment, and clinical improvement was observed. Both techniques detect Mycobacterium tuberculosis complex, but they have different targets and limits of detection...
November 17, 2016: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/27865394/recent-developments-in-genomics-bioinformatics-and-drug-discovery-to-combat-emerging-drug-resistant-tuberculosis
#15
REVIEW
Soumya Swaminathan, Jagadish Chandrabose Sundaramurthi, Alangudi Natarajan Palaniappan, Sujatha Narayanan
Emergence of drug-resistant tuberculosis (DR-TB) is a big challenge in TB control. The delay in diagnosis of DR-TB leads to its increased transmission, and therefore prevalence. Recent developments in genomics have enabled whole genome sequencing (WGS) of Mycobacterium tuberculosis (M. tuberculosis) from 3-day-old liquid culture and directly from uncultured sputa, while new bioinformatics tools facilitate to determine DR mutations rapidly from the resulting sequences. The present drug discovery and development pipeline is filled with candidate drugs which have shown efficacy against DR-TB...
December 2016: Tuberculosis
https://www.readbyqxmd.com/read/27865246/renal-tuberculosis-presenting-as-acute-pyelonephritis-a-rarity
#16
Ajay Kumar Verma, Ashwini Kumar Mishra, Manoj Kumar, Surya Kant, Anubhuti Singh, Ajay Singh
One of the major health problems faced particularly by the developing world since ages is that of tuberculosis (TB). Genito-urinary tuberculosis (GUTB) is the second most common extrapulmonary TB, with kidney being the most frequent site of infection. Due to the diverse and atypical clinical manifestations of urinary TB, the disease is easy to misdiagnose. The diagnosis of renal TB should be suspected in a nonspecific bacterial cystitis associated with a therapeutic failure or a sterile pyuria and a past history of pulmonary TB with important radiologic findings, particularly with the help of CT scan...
July 2016: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/27865245/adolescent-with-recurrent-tuberculosis-can-it-be-chronic-granulomatous-disease
#17
Yashashree Gupta, Ira Shah
Chronic granulomatous disease (CGD) is an inherited primary immunodeficiency disorder with recurrent bacterial and fungal infections like Staphylococcus aureus, Nocardia spp, Serratia marcescens, Burkholderia cepacia, Salmonella spp. and Aspergillus species. We present a 13-year-old male child who had 3 episodes of tuberculosis (TB) at 5 years, 8 years and 13 years of age, respectively, with no other intercurrent infections and who was diagnosed as CGD at the age of 13 years. This case highlights the possibility of phenotypic variations of CGD...
July 2016: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/27865237/smoked-and-smokeless-tobacco-use-among-pulmonary-tuberculosis-patients-under-rntcp-in-urban-puducherry-india
#18
Veerakumar Arumugam Mariappan, Swaroop Kumar Sahu, Sonali Sarkar, Shivanand Kattimani, Govindarajan Soundappan
BACKGROUND: Smoking is associated with unfavourable treatment outcomes like failures and defaults among the TB patients. OBJECTIVES: To study the prevalence and pattern of tobacco use among the pulmonary tuberculosis (PTB) patients in urban Pondicherry and study the association of various socio-demographic variables with current smoked and smokeless tobacco users. METHODS: A cross-sectional study was conducted among 235 PTB patients from 6 randomly selected urban PHCs of Pondicherry from Jan 2013 to March 2014...
July 2016: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/27865236/pcr-targeting-is6110-in-diagnosing-tuberculosis-in-children-in-comparison-to-mgit-culture
#19
Rajeshwar Dayal, Dipti Agarwal, Harish Pathak, Shehraj Feroz, Manoj Kumar, Devendra S Chauhan, Rakesh Bhatia
BACKGROUND: Diagnosis of tuberculosis (TB) in children is difficult in children especially in extrapulmonary tuberculosis (EPTB). This study was conducted to evaluate the use of polymerase chain reaction (PCR) targeting IS6110 in the diagnosis of TB in children with pulmonary TB and EPTB and also to compare its performance with MGIT 960 culture and conventional microscopy. METHODS: A total of 142 cases (50 pulmonary, 92 extrapulmonary) of suspected TB patients <15 years of age were included in the study...
July 2016: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/27863623/tuberculous-lymphadenitis-of-the-head-and-neck-in-canadian-children-experience-from-a-low-burden-region
#20
Jason J Xu, Shazia Peer, Blake C Papsin, Ian Kitai, Evan J Propst
BACKGROUND: Children are more likely than adults to develop extra-pulmonary tuberculosis (EPTB), which often presents as cervical lymphadenopathy. The role of surgery in management is uncertain. We reviewed all head and neck EPTB cases presenting to our tertiary care pediatric institution over a twelve-year period. METHODS: All children 18 years of age and younger with EPTB involving the head and neck were included. We recorded clinical data and age at diagnosis, birth country, BCG vaccination status, as well as radiographic, surgical, histological, and microbiological results...
December 2016: International Journal of Pediatric Otorhinolaryngology
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