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Tuberculosis

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91 papers 25 to 100 followers
https://www.readbyqxmd.com/read/29346118/mycobacterium-avium-complex-pulmonary-disease-new-epidemiology-and-management-concepts
#1
Leah Lande, Jason George, Theodore Plush
PURPOSE OF REVIEW: The prevalence of Mycobacterium avium complex (MAC)-related pulmonary disease has been increasing because of environmental factors, changes in organism virulence, and evolving host susceptibility. Treatment is often complicated by adverse effects, development of drug resistance, and refractory disease, with recurrence rates as high as 25-45%. RECENT FINDINGS: Aerosolization of water, soil, or dusts are the likely sources of MAC-related pulmonary disease in susceptible individuals...
April 2018: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/29356415/clinical-and-imaging-spectrum-of-tuberculosis-associated-fibrosing-mediastinitis
#2
Tongxi Liu, Li Gao, Sheng Xie, Hongliang Sun, Min Liu, Zhenguo Zhai
PURPOSE: Fibrosing mediastinitis (FM) is a rare disorder characterized by an excessive fibrotic reaction within the mediastinum, which can result in compression of mediastinal structures. To investigate the clinical and imaging characteristics of TB-associated FM, patients with evidence of TB infection were retrospectively evaluated in this study. MATERIALS AND METHODS: A total of 33 patients with clinically diagnosed FM and evidence of TB infection were selected from the database of two institutional medical centers...
January 22, 2018: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/28709481/extensively-drug-resistant-tuberculosis-xdr-tb-a-daunting-challenge-to-the-current-end-tb-strategy-and-policy-recommendations
#3
REVIEW
Md Arifur Rahman, Atanu Sarkar
Extensively Drug-resistant Tuberculosis (XDR-TB) has emerged as one of the most formidable challenges to the End TB Strategy that has targeted a 95% reduction in TB deaths and 90% reduction in cases by 2035. Globally, there were an estimated 55,100 new XDR-TB cases in 2015 in 117 countries. However, only one in 30 XDR-TB cases had been reported so far. Drug susceptibility test (DST) is the mainstay for diagnosing XDR-TB, but the lack of laboratory facilities in the resource-limited endemic countries limit its uses...
July 2017: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/28941848/drug-development-against-tuberculosis-past-present-and-future
#4
REVIEW
Mahesh S Vasava, Manoj N Bhoi, Sanjay K Rathwa, Mayuri A Borad, Sneha G Nair, Hitesh D Patel
Infection of Mycobacterium tuberculosis (MTB) was observed as early as 5000 years ago with evidence, which is a primeval enemy of the humanoid race. MTB is the pathogen which is responsible for causing the infectious disease tuberculosis; it remains a major cause of morbidity and mortality in poor low-income countries as well as in developing countries because of non-availability of reliable laboratory facilities. The current treatment for drug-resistant tuberculosis (TB) is lengthy, complex, and connected with severe harmful side effects and poor outcomes...
October 2017: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/28895024/tuberculosis-meningitis
#5
REVIEW
Kassem Bourgi, Christina Fiske, Timothy R Sterling
PURPOSE OF REVIEW: As the most severe form of tuberculosis (TB), TB meningitis disproportionately affects developing countries and results in significant morbidity and mortality. In this report, we review recent updates in the epidemiology, diagnosis, and management of TB meningitis. RECENT FINDINGS: Young children and people living with HIV continue to be at highest risk for TB meningitis. Early diagnosis remains challenging, especially since conventional diagnostic tests have sub-optimal sensitivity and specificity...
September 11, 2017: Current Infectious Disease Reports
https://www.readbyqxmd.com/read/28548990/outbreaks-of-nontuberculous-mycobacteria
#6
REVIEW
Geeta Sood, Nikki Parrish
PURPOSE OF REVIEW: The purpose of this review is to summarize the emerging literature on nontuberculous mycobacteria outbreaks in healthcare settings. As our ability to identify mycobacterial species develops, we are better able to recognize epidemiologic connections and better understand the prevalence and importance of these outbreaks and pseudo-outbreaks in healthcare settings. RECENT FINDINGS: The number of outbreaks related to nontuberculous outbreaks is increasing because of heightened awareness and better diagnostic tests for species level identification of mycobacteria...
August 2017: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/28253020/efficacy-of-treatment-for-latent-tuberculosis-in-patients-undergoing-treatment-with-a-tumor-necrosis-factor-antagonist
#7
Jungsil Lee, Eunyoung Kim, Eun Jin Jang, Chang-Hoon Lee, Eun Young Lee, Jong Pil Im, Sung Koo Han, Jae-Joon Yim
RATIONALE: Current guidelines recommend that all patients undergoing treatment with a tumor necrosis factor-α antagonist should receive screening for latent tuberculosis and appropriate treatment before initiating the inhibitor. However, no well-designed study has shown the efficacy of treating these patients for latent tuberculosis. OBJECTIVES: To compare the risk of active tuberculosis between tumor necrosis factor antagonist users who have received treatment for latent tuberculosis with those who have not...
May 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28387532/mortality-after-respiratory-isolation-of-nontuberculous-mycobacteria-a-comparison-of-patients-who-did-and-did-not-meet-disease-criteria
#8
Shannon A Novosad, Emily Henkle, Sean Schafer, Katrina Hedberg, Jennifer Ku, Sarah A R Siegel, Dongseok Choi, Christopher G Slatore, Kevin L Winthrop
RATIONALE: The mortality of patients with respiratory tract isolates of nontuberculous mycobacteria (NTM) and their risk factors for death are not well described. OBJECTIVES: To determine age-adjusted mortality rates for patients with respiratory NTM isolates and their causes of death and to examine whether American Thoracic Society/Infectious Diseases Society of America (ATS/IDSA) diagnostic criteria identify those at higher risk of death after NTM isolation. METHODS: We linked vital records registries with a previously identified Oregon population-based cohort of patients with NTM respiratory isolation...
July 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28406709/long-term-outcomes-in-a-population-based-cohort-with-respiratory-nontuberculous-mycobacteria-isolation
#9
Emily Henkle, Shannon A Novosad, Sean Shafer, Katrina Hedberg, Sarah A R Siegel, Jennifer Ku, Cara Varley, D Rebecca Prevots, Theodore K Marras, Kevin L Winthrop
RATIONALE: The natural history of nontuberculous mycobacteria (NTM) respiratory infection in the general population is poorly understood. OBJECTIVES: To describe the long-term clinical, microbiologic, and radiographic outcomes of patients with respiratory NTM isolates. METHODS: We previously identified a population-based cohort of patients with respiratory NTM isolation during 2005-2006 and categorized patients as cases or noncases using the American Thoracic Society/Infectious Diseases Society of America pulmonary NTM disease criteria at that time...
July 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28761946/treatment-of-latent-tuberculosis-infection-an-updated-network-meta-analysis
#10
REVIEW
Dominik Zenner, Netta Beer, Ross J Harris, Marc C Lipman, Helen R Stagg, Marieke J van der Werf
Background: Treatment of latent tuberculosis infection (LTBI) is an important component of tuberculosis (TB) control, and this study updates a previous network meta-analysis of the best LTBI treatment options to inform public health action and programmatic management of LTBI. Purpose: To evaluate the comparative efficacy and harms of LTBI treatment regimens aimed at preventing active TB among adults and children. Data Sources: PubMed, Embase, and Web of Science from indexing to 8 May 2017; clinical trial registries; and conference abstracts...
August 15, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28582488/treatment-outcomes-of-mycobacterium-avium-complex-lung-disease-a-systematic-review-and-meta-analysis
#11
Nakwon Kwak, Jimyung Park, Eunyoung Kim, Chang-Hoon Lee, Sung Koo Han, Jae-Joon Yim
Background: The advent of macrolides has led to therapeutic advances in the treatment of Mycobacterium avium complex lung disease (MAC-LD). The aim of this study was to elucidate the treatment outcomes of macrolide-containing regimens. Methods: We performed a systematic review and meta-analysis of published studies reporting treatment outcomes of macrolide-containing regimens for MAC-LD using the MEDLINE, EMBASE, and Cochrane Library databases until 31 July 2016...
June 3, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28369361/long-term-outcome-of-pulmonary-resection-for-nontuberculous-mycobacterial-pulmonary-disease
#12
Takanori Asakura, Nobutaka Hayakawa, Naoki Hasegawa, Ho Namkoong, Ken Takeuchi, Shoji Suzuki, Makoto Ishii, Tomoko Betsuyaku, Yoshiaki Abe, Motofumi Ouchi
Background: Pulmonary resection along with multiple antimicrobial therapy has produced favorable outcomes at a few centers. However, little is known regarding the risk factors for long-term survival and microbiological recurrence after pulmonary resection for nontuberculous mycobacterial pulmonary disease (NTMPD). We evaluated the long-term outcomes of pulmonary resection, including microbiological recurrence and survival. Methods: This retrospective cohort study included 125 patients (median age, 60 years) with NTMPD treated by pulmonary resection at two referral centers between January 1994 and August 2015...
July 15, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28402396/comparing-the-efficacy-of-drug-regimens-for-pulmonary-tuberculosis-meta-analysis-of-endpoints-in-early-phase-clinical-trials
#13
Laura J Bonnett, Gie Ken-Dror, Gavin C K W Koh, Geraint R Davies
Background: A systematic review of early clinical outcomes in tuberculosis was undertaken to determine ranking of efficacy of drugs and combinations, define variability of these measures on different endpoints, and to establish the relationships between them. Methods: Studies were identified by searching PubMed, Medline, Embase, LILACS (Latin American and Caribbean Health Sciences Literature), and reference lists of included studies. Outcomes were early bactericidal activity results over 2, 7, and 14 days, and the proportion of patients with negative culture at 8 weeks...
July 1, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28472255/clinical-outcomes-of-patients-with-drug-resistant-tuberculous-meningitis-treated-with-an-intensified-antituberculosis-regimen
#14
A Dorothee Heemskerk, Mai Thi Hoang Nguyen, Ha Thi Minh Dang, Chau Van Vinh Nguyen, Lan Huu Nguyen, Thu Dang Anh Do, Thuong Thuy Thuong Nguyen, Marcel Wolbers, Jeremy Day, Thao Thi Phuong Le, Bang Duc Nguyen, Maxine Caws, Guy E Thwaites
Background: Drug-resistant tuberculous meningitis (TBM) is difficult to diagnose and treat. Mortality is high and optimal treatment is unknown. We compared clinical outcomes of drug-resistant and -susceptible TBM treated with either standard or intensified antituberculosis treatment. Methods: We analyzed the influence of Mycobacterium tuberculosis drug resistance on the outcomes of patients with TBM enrolled into a randomized controlled trial comparing a standard, 9-month antituberculosis regimen (containing rifampicin 10 mg/kg/day) with an intensified regimen with higher-dose rifampicin (15 mg/kg/day) and levofloxacin (20 mg/kg/day) for the first 8 weeks...
July 1, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28531276/impact-of-vitamin-a-and-carotenoids-on-the-risk-of-tuberculosis-progression
#15
Omowunmi Aibana, Molly F Franke, Chuan-Chin Huang, Jerome T Galea, Roger Calderon, Zibiao Zhang, Mercedes C Becerra, Emily R Smith, Alayne G Ronnenberg, Carmen Contreras, Rosa Yataco, Leonid Lecca, Megan B Murray
Background: Low and deficient levels of vitamin A are common in low- and middle-income countries where tuberculosis burden is high. We assessed the impact of baseline levels of vitamin A and carotenoids on tuberculosis disease risk. Methods: We conducted a case-control study nested within a longitudinal cohort of household contacts (HHCs) of pulmonary tuberculosis case patients in Lima, Peru. We defined case patients as human immunodeficiency virus (HIV)-negative HHCs with blood samples in whom tuberculosis disease developed ≥15 days after enrollment of the index patient...
September 15, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28541556/microbiological-persistence-in-patients-with-mycobacterium-avium-complex-lung-disease-the-predictors-and-the-impact-on-radiographic-progression
#16
Sheng-Wei Pan, Chin-Chung Shu, Jia-Yih Feng, Jann-Yuan Wang, Yu-Jiun Chan, Chong-Jen Yu, Wei-Juin Su
Background: Persistent growth of Mycobacterium avium complex (MAC) in the lungs indicates continuous infection in MAC lung disease (MAC-LD), but its clinical significance has not been investigated. We aimed to evaluate the predictors of persistent culture-positivity for MAC (MAC-PP) and its impact on radiographic deterioration in MAC-LD. Methods: Patients with MAC-LD at multiple medical centers from 2011 to 2016 were enrolled retrospectively. Microbiological persistence of MAC-LD was defined as MAC-PP exceeding 1 year, in contrast with the negative-conversion group...
September 15, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28575173/health-care-associated-mycobacterium-bovis-bcg-infection-in-cancer-patients-without-prior-bcg-instillation
#17
Y Meije, J Martínez-Montauti, J A Caylà, J Loureiro, L Ortega, M Clemente, X Sanz, M Ricart, M J Santomà, P Coll, M Sierra, M Calsina, M Vaqué, I Ruiz-Camps, C López-Sánchez, M Montes, A Ayestarán, J Carratalà, A Orcau
Background: Bacille Calmette-Guérin (BCG), an attenuated strain of Mycobacterium bovis, is widely used as adjunctive therapy for superficial bladder cancer. Intravesical administration of BCG has been associated with systemic infection. Disseminated infection due to M. bovis is otherwise uncommon. Methods: After identification of three patients with health-care associated BCG infection (HCBCGI) who had never received intravesical BCG administration, an epidemiologic study was performed...
May 29, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28166920/tuberculosis-the-great-imitator-a-usual-disease-with-unusual-presentations
#18
Sujata Jetley, Zeeba S Jairajpuri, Mukta Pujani, Sabina Khan, Safia Rana
BACKGROUND: A number of infectious diseases have been referred to by the phrase 'The Great Imitator', of which the oldest is syphilis; others include Lyme disease, nocardiosis, etc. Tuberculosis has been described as the second great imitator as it can imitate various other disease processes. An awareness of the atypical clinical manifestations of tuberculosis is important, especially in regions where tuberculosis continues to be a major public health problem, such as India. Extrapulmonary tuberculosis (EPTB) constitutes about 15-20% of all cases of tuberculosis in immunocompetent patients and accounts for more than 50% of the cases in human immunodeficiency virus (HIV)-positive individuals...
January 2017: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/28410694/pyridines-multidrug-resistant-tuberculosis-mdr-tb-inhibitors
#19
REVIEW
Kavita S Chaudhari, Harun M Patel, Sanjay J Surana
Mycobacterium tuberculosis (MTB) infection has become an increasing health threat due to the worldwide emergence of multidrug-resistant MTB (MDR-MTB) strain. Isoniazid (pyridine) resistance problem is a complex process and is associated with mutations in several genes. However, the emergence of isoniazid (INH) resistant M. tuberculosis strains dictates the necessity for redesigning this old drug in order to create analogs effective against INH-resistant strains by using rational approach. In light of these findings, the present review discusses the synthesis, structural optimization, and modification in pyridine structure to combat the problem of multidrug-resistant tuberculosis...
April 2017: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/28410698/spontaneous-chylothorax-revealing-a-mediastinal-and-abdominal-lymph-node-tuberculosis
#20
Jihen Ben Amar, Haifa Zaibi, Besma Dahri, Hichem Aouina
Chylothorax is a rare manifestation of tuberculosis. We report a case of spontaneous chylothorax due to tuberculosis. A 62-year-old woman was admitted with fever, chest pain and dyspnea. Chest and abdominal computed tomography revealed a fluid collection with necrotic mediastinal and abdominal lymph nodes. Biopsy of lymph nodes by mediastinoscopy. The patient was treated with anti-tuberculosis medication. He is clinically improved and his pleural effusion also completely resolved.
April 2017: Indian Journal of Tuberculosis
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