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https://www.readbyqxmd.com/read/28087944/laboratory-diagnosis-and-susceptibility-testing-for-mycobacterium-tuberculosis
#1
Gary W Procop
The laboratory, which utilizes some of the most sophisticated and rapidly changing technologies, plays a critical role in the diagnosis of tuberculosis. Some of these tools are being employed in resource-challenged countries for the rapid detection and characterization of Mycobacterium tuberculosis. Foremost, the laboratory defines appropriate specimen criteria for optimal test performance. The direct detection of mycobacteria in the clinical specimen, predominantly done by acid-fast staining, may eventually be replaced by rapid-cycle PCR...
December 2016: Microbiology Spectrum
https://www.readbyqxmd.com/read/28063922/efficacy-and-safety-of-a-four-drug-fixed-dose-combination-regimen-versus-separate-drugs-for-treatment-of-pulmonary-tuberculosis-a-systematic-review-and-meta-analysis
#2
REVIEW
Glaura C Lima, Emilia V Silva, Pérola de O Magalhães, Janeth S Naves
INTRODUCTION: Tuberculosis, particularly multi-drug-resistant tuberculosis, is a major cause of morbidity and mortality worldwide. To the best of our knowledge, however, no study to date has assessed the combined use of the four available drugs for tuberculosis treatment, which is an issue of great clinical relevance. OBJECTIVE: To determine whether the four-drug fixed-dose combination is safer or more effective than separate drugs for treatment of pulmonary tuberculosis...
December 23, 2016: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/28052967/official-american-thoracic-society-infectious-diseases-society-of-america-centers-for-disease-control-and-prevention-clinical-practice-guidelines-diagnosis-of-tuberculosis-in-adults-and-children
#3
David M Lewinsohn, Michael K Leonard, Philip A LoBue, David L Cohn, Charles L Daley, Ed Desmond, Joseph Keane, Deborah A Lewinsohn, Ann M Loeffler, Gerald H Mazurek, Richard J O'Brien, Madhukar Pai, Luca Richeldi, Max Salfinger, Thomas M Shinnick, Timothy R Sterling, David M Warshauer, Gail L Woods
BACKGROUND: Individuals infected with Mycobacterium tuberculosis (Mtb) may develop symptoms and signs of disease (tuberculosis disease) or may have no clinical evidence of disease (latent tuberculosis infection [LTBI]). Tuberculosis disease is a leading cause of infectious disease morbidity and mortality worldwide, yet many questions related to its diagnosis remain. METHODS: A task force supported by the American Thoracic Society, Centers for Disease Control and Prevention, and Infectious Diseases Society of America searched, selected, and synthesized relevant evidence...
January 15, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28050363/first-line-anti-tb-drug-resistance-in-an-urban-area-of-odisha-india
#4
Dasarathi Das, Prakasini Satapathy, Biswanath Murmu
INTRODUCTION: Drug resistance is a major cause for increasing the global burden of Tuberculosis (TB). However in countries with larger geographical areas and different climatic conditions like India the prevalence of drug resistance varies from place to place. Information on anti-TB drug resistance patterns particularly among newly diagnosed cases is crucial for planning an effective TB control program. AIM: To determine the prevalence of resistance against first line anti-TB drugs and Multi Drug Resistance (MDR) in Mycobacterium tuberculosis isolates...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28043624/new-insights-into-the-mechanism-of-action-of-pyrazinamide-implications-for-susceptibility-testing-and-future-regimens
#5
Richard M Anthony, Alice den Hertog, Mikael Mansjö, Jim Werngren
Pyrazinamide (PZA) is included in the 2016 World Health Organization multidrug-resistant tuberculosis treatment guidelines and is a key component of most ongoing clinical trials investigating novel antibiotic combinations. PZA resistance is associated with worse tuberculosis treatment outcomes. Unfortunately, for such an important drug, phenotypic susceptibility testing is extremely challenging. The exacting bacterial growth conditions required to induce susceptibility to the drug reduce the accuracy of the susceptibility assay, even in experienced laboratories, and widespread testing is not performed...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043620/implementation-of-new-tools-for-multidrug-resistant-tuberculosis-detection-and-control
#6
Robin M Warren
Contrary to classical dogma, molecular epidemiological studies and mathematical modeling clearly show that the global drug-resistant tuberculosis (TB) epidemic is driven by transmission. Furthermore, there is mounting evidence demonstrating that amplification of resistance occurs during treatment, possibly as a result of insufficient active drugs being administered. To control the drug-resistant TB epidemic, it will be essential to implement new, rapid, and highly sensitive and specific diagnostic methods to decrease the diagnostic delay associated with culture-based testing...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043603/individualized-treatment-of-multidrug-resistant-tuberculosis-using-therapeutic-drug-monitoring
#7
Mathieu S Bolhuis, Onno W Akkerman, Marieke G G Sturkenboom, Wiel C M de Lange, Tjip S van der Werf, Jan-Willem C Alffenaar
OBJECTIVE/BACKGROUND: Globally, approximately 50% of patients with multidrug-resistant tuberculosis (MDR-TB) experience treatment failure. MDR-TB treatment is hindered by adverse events, toxicity of the second-line anti-TB drugs, logistics and costs, especially in low-income countries, and problems with medication adherence. Pharmacokinetic variability is also attributed as one of the reasons contributing to treatment failure. In our reference Tuberculosis Center Beatrixoord (University Medical Center Groningen, Groningen, The Netherlands), we strive to individualize treatment of all MDR-TB patients based on drug-susceptibility testing using minimal inhibitory concentrations and pharmacokinetic parameters...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043602/screening-new-tuberculosis-patients-in-mali-for-rifampicin-resistance-at-2months
#8
Bassirou Diarra, Aissata B Cissé, Ousmane Kodio, Moumine Sanogo, Bocar Baya, Antieme C G Togo, Amadou Somboro, Mohamed Tolofoudié, Boureima Degoga, Marie Laure Keita, Fatimata Diallo, Natacha Nguiakam, Gagni Coulibaly, Sidy Bane, Yeya Dit Sadio Sarro, Seydou Doumbia, Robert Leo Murphy, Souleymane Diallo, Bouke C Dejong
OBJECTIVE/BACKGROUND: The recent call for universal drug susceptibility testing (DST) for all tuberculosis (TB) patients will be difficult to meet in settings where Xpert rollout is limited, such as low prevalence of HIV and Multi-drug Resistant Tuberculosis (MDR) settings. As recommended by World Health Organization (WHO) guidelines, the success of TB treatment is measured by Ziehl-Neelsen (ZN) microscopy or auramine-rhodamine fluorescent microscopy (FM) on sputum, in which conversion to negative smear at 2months (M) is an important predictor of treatment success, defined as a negative smear at 5M...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043565/drug-susceptibility-testing-of-mycobacterium-avium-subsp-avium-isolates-from-naturally-infected-domestic-pigeons-to-avian-tuberculosis
#9
Kaveh Parvandar, Mansour Mayahi, Nader Mosavari, Reza Aref Pajoohi
OBJECTIVE: Avian tuberculosis is one of the most important infections affecting most species of birds. Several mycobacterial species have been identified causing avian tuberculosis, and the organisms confirmed most frequently are Mycobacterium avium and Mycobacterium genavense. Any species of birds can be infected with M. avium. Generally, domesticated fowl or captive wild birds are affected more frequently than those living in the wild. M. avium can not only infect all species of birds, but can also infect some domesticated mammals to cause disease, usually with localized lesion...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043551/the-prevalence-of-tuberculosis-among-iranian-elderly-patients-admitted-to-the-infectious-ward-of-hospital-a-systematic-review-and-meta-analysis
#10
M Azami, K Sayehmiri, M H YektaKooshali, M R HafeziAhmadi
AIMS AND OBJECTIVES: Age increasing is caused physiological changes in the human body, such as reducing the power of the immune system. Weakened immune systems are more susceptible to bacterial infections like tuberculosis. So, this present study was performed for evaluating the prevalence of tuberculosis among Iranian elderly patients admitted to the infectious ward of a hospital. METHODS: This systematic review and meta-analysis study has been done based on PRISMA guidelines...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043530/rapid-detection-of-mycobacterium-tuberculosis-complex-in-sputum-samples-using-pure-tb-lamp-assay
#11
K N'guessan, K Horo, I Coulibaly, J Adegbele, N Kouame-Adjei, H Seck-Angu, A Guei, J Kouakou, M Dosso
OBJECTIVE/BACKGROUND: Lack of rapid and accurate diagnostic testing is a critical obstacle to global tuberculosis (TB) control. Sensitivity of sputum smear microscopy (SSM) is not optimal; however, it remains the most prevalent tool for TB confirmation in poor countries. As a part of passive case finding of TB detection, this study was conducted to determine the clinical performance of PURE TB-LAMP assay using liquid culture medium as the gold standard. METHODS: Centre Antituberculeux de Yopougon is one of the 17 intermediate Tuberculosis centers in Côte d'Ivoire...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043526/hiv-and-tuberculosis-trends-and-survival-of-coinfection-in-a-referral-center-in-tehran-a-12-year-study
#12
Parvaneh Baghaei, Payam Tabarsi, Syna Jabehdari, Majid Marjani, Afshin Moniri, Parissa Farnia, Ali Akbar Velayati
OBJECTIVE/BACKGROUND: The risk of mortality and morbidity among tuberculosis (TB) and human immunodeficiency virus (HIV) coinfected patients is significantly higher than that of patients infected with TB alone. The aim of this study was to evaluate the survival of TB-HIV patients in a TB-referral center during a 10-year follow-up. METHODS: All TB-HIV patients in our referral center were enrolled in the study from 2003 to 2014, and patients were divided into two groups: HIV-TB patients without a history of TB treatment (new cases of TB) and HIV-TB patients with a history of TB treatment...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28030600/isoniazid-mono-resistant-tuberculosis-impact-on-treatment-outcome-and-survival-of-pulmonary-tuberculosis-patients-in-southern-mexico-1995-2010
#13
Renata Báez-Saldaña, Guadalupe Delgado-Sánchez, Lourdes García-García, Luis Pablo Cruz-Hervert, Marlene Montesinos-Castillo, Leticia Ferreyra-Reyes, Miriam Bobadilla-Del-Valle, Sergio Canizales-Quintero, Elizabeth Ferreira-Guerrero, Norma Téllez-Vázquez, Rogelio Montero-Campos, Mercedes Yanes-Lane, Norma Mongua-Rodriguez, Rosa Areli Martínez-Gamboa, José Sifuentes-Osornio, Alfredo Ponce-de-León
BACKGROUND: Isoniazid mono-resistance (IMR) is the most common form of mono-resistance; its world prevalence is estimated to range between 0.0 to 9.5% globally. There is no consensus on how these patients should be treated. OBJECTIVE: To describe the impact of IMR tuberculosis (TB) on treatment outcome and survival among pulmonary TB patients treated under programmatic conditions in Orizaba, Veracruz, Mexico. MATERIALS AND METHODS: We conducted a prospective cohort study of pulmonary TB patients in Southern Mexico...
2016: PloS One
https://www.readbyqxmd.com/read/28028995/recommendations-for-optimizing-tuberculosis-treatment-therapeutic-drug-monitoring-pharmacogenetics-and-nutritional-status-considerations
#14
REVIEW
Rihwa Choi, Byeong Ho Jeong, Won Jung Koh, Soo Youn Lee
Although tuberculosis is largely a curable disease, it remains a major cause of morbidity and mortality worldwide. Although the standard 6-month treatment regimen is highly effective for drug-susceptible tuberculosis, the use of multiple drugs over long periods of time can cause frequent adverse drug reactions. In addition, some patients with drug-susceptible tuberculosis do not respond adequately to treatment and develop treatment failure and drug resistance. Response to tuberculosis treatment could be affected by multiple factors associated with the host-pathogen interaction including genetic factors and the nutritional status of the host...
March 2017: Annals of Laboratory Medicine
https://www.readbyqxmd.com/read/28000919/antibiotic-treatment-for-nontuberculous-mycobacteria-lung-infection-in-people-with-cystic-fibrosis
#15
REVIEW
Valerie Waters, Felix Ratjen
BACKGROUND: Nontuberculous mycobacteria are mycobacteria, other than those in the Mycobacterium tuberculosis complex, and are commonly found in the environment. Nontuberculous mycobacteria species (most commonly Mycobacterium avium complex and Mycobacterium abscessus) are isolated from the respiratory tract of approximately 5% to 40% of individuals with cystic fibrosis; they can cause lung disease in people with cystic fibrosis leading to more a rapid decline in lung function and even death in certain circumstances...
December 19, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27994106/resistance-to-first-line-antituberculosis-drugs-in-washington-state-by-region-of-birth-and-implications-for-latent-tuberculosis-treatment-among-foreign-born-individuals
#16
Nathan W Furukawa, Mahri Z Haider, Sheanne J Allen, Sherry L Carlson, Scott W Lindquist
The United States has a low burden of drug resistance among tuberculosis (TB) cases compared with other world regions. TB is increasingly concentrated among foreign-born individuals who have higher rates of drug resistance than U.S.-born individuals. While universal drug susceptibility testing is the standard for detecting active tuberculosis, there are limited guidelines for latent tuberculosis infection (LTBI) treatment based on risk factors for drug resistance. To quantify the variable risk of drug resistance among foreign-born individuals, all TB cases in Washington State between 1994 and 2014 with drug resistance data for isoniazid, rifampin, pyrazinamide, and ethambutol were divided into eight regions of birth...
December 19, 2016: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27993688/improving-access-to-tuberculosis-preventive-therapy-and-treatment-for-children
#17
REVIEW
Ben J Marais
Children suffer a huge burden of disease in tuberculosis (TB) endemic countries. This disease burden was largely invisible when TB control programmes focused exclusively on adults with sputum smear-positive disease. High-level advocacy and better data have improved visibility, but the establishment of functional paediatric TB programmes remains challenging. The key issues that limit children's access to TB preventive therapy and treatment in endemic areas are briefly discussed. Barriers to preventive therapy include (1) the perceived inability to rule out active disease, (2) fear of creating drug resistance, (3) non-implementation of existing guidelines in the absence of adequate monitoring, and (4) poor adherence with long preventive therapy courses...
December 16, 2016: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/27990383/biologics-use-in-indian-psoriasis-patients
#18
Murlidhar Rajagopalan, Asit Mital
The biologics currently in use for psoriasis in India are etanercept, infliximab and recently introduced itolizumab and secukinumab. Biosimilars, expected to play a significant role in psoriasis management in future, have also been available for the last few years. Patients with psoriasis may be considered eligible to receive treatment with any of the licensed biologic interventions when they fulfill the eligibility criteria. The decision to proceed with treatment must be made in collaboration with the patient and include a careful assessment of the associated risks and benefits...
November 2016: Indian Dermatology Online Journal
https://www.readbyqxmd.com/read/27982400/experience-of-health-professionals-in-care-of-the-homeless-population-with-tuberculosis
#19
Tatiana Ferraz de Araújo Alecrim, Fernando Mitano, Amanda Alessandra Dos Reis, Cristine Moraes Roos, Pedro Fredemir Palha, Simone Teresinha Protti-Zanatta
OBJECTIVE: Analyzing statements of health professionals from a Street Clinic regarding care of a homeless population with tuberculosis. METHOD: This is a qualitative research, conducted in the central region of São Paulo at three basic health units in the period of November to December 2014. A semi-structured interview guideline was implemented for data collection and all interviews were recorded using a digital recorder. RESULTS: Six health professionals were interviewed...
September 2016: Revista da Escola de Enfermagem da U S P
https://www.readbyqxmd.com/read/27974357/tuberculosis-nice-clinical-guideline-33
#20
Louise Turnbull, Christine Bell, Fran Child
No abstract text is available yet for this article.
December 14, 2016: Archives of Disease in Childhood. Education and Practice Edition
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