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Mycobacterial DiseasesAtypical Mycobacterium Griffith DE, Aksamit T, Brown-Elliott BA, et al. The official ATS/IDSA statement :Diagnosis, treatment, and prevention of nontuberculous mycobacterial diseases. Am J Respir Crit Care Med 2007; 175:367-416. More comprehensive than its 1997 predecessor, this statement provides a general overview of NTM pathogenesis, presentation, and diagnosis as well as easily retrieved treatment recommendations on specific organisms. http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=pubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=17277290&query_hl=36&itool=pubmed_docsum Richeldi L. An update on the diagnosis of tuberculosis infection. Am J Respir Crit Care Med 2006; 174:736-42. This perspective paper summarizes the operating characteristics and potential clinical application of new blood tests that detect T-cell release of IFN-gamma release in response to exposure to tuberculosis-specific antigens. http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=pubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=16799073&query_hl=34&itool=pubmed_docsum International Union against Tuberculosis Committee on Prophylaxis. Efficacy of various durations of isoniazid preventive therapy for tuberculosis: five years of follow-up in the IUAT trial. Bull WHO 1982;60:555-64. Noteworthy for being the only study of the efficacy and safety of different durations of INH prophylaxis. http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=6754120 Stead WW. Management of health care workers after inadvertent exposure to TB: a guide for the use of preventive therapy. Ann Intern Med 1995;122:906-12. Based on early TB outbreaks and more recent studies of health care and nursing home exposures, the author makes recommendations for the management of health care workers with heavy exposure to active disease. Specifically, workers with prior positive PPD do not need treatment unless they become symptomatic per the author. Skin test negative workers should receive INH prophylaxis until they are tested for conversion 8 weeks after exposure. http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=7755225 Active tuberculosis CDC. Emergence of Mycobacterium tuberculosis with extensive resistance to second-line drugs--worldwide, 2000-2004. Morb Mortal Wkly Rep. 2006; 55:301-5. This report summarizes the results of a survey distributed to a multinational network of Tb laboratories between 2000-2004. Of 17,690 TB isolates, 20% were MDR and 2% were XDR. XDR TB has emerged worldwide as a threat to public health and TB control, raising concerns of a future epidemic of virtually untreatable TB. http://www.ncbi.nlm.nih.gov/pubmed/16557213?ordinalpos=1&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum Gardam MA, Keystone EC, Menzies R, et al. Anti-tumour necrosis factor agents and tuberculosis risk: mechanism of action and clinical management. Lancet Infect Dis 2003;3:148-55. A review of TB progression and reactivation with use of anti-TNF agents. http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=12614731 Bock NN, McGowan JE, Ahn J, et al. Clinical predictors of tuberculosis as a guide for respiratory isolation policy. Am J Respir Crit Care Med 1996;154:1468-72. Study found upper lobe infiltrate, presence of cavity, self-report of prior positive PPD, and history of TB exposure were predictive of active disease while history of INH prophylaxis was negatively predictive. Basing isolation solely on these criteria, however, would have resulted in failure to isolate 19% of active cases. http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=8912766 ATS Workshop: Rapid diagnostic tests for tuberculosis: what is the appropriate test? Am J Respir Crit Care Med 1997;155:1804-14. The article focuses on the indications and limitations to use of direct amplification tests (DAT) for rapid diagnosis of TB in smear-positive and smear-negative cases. http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=9154896 Roth BJ. Searching for tuberculosis in the pleural space. Chest 1999;116:3-4. Reviews use of ADA in work-up of pleural TB. http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=10424494 Conde MB, Loivos AC, Rezende VM, et al. Yield of sputum induction in the diagnosis of pleural tuberculosis. Am J Respir Crit Care Med 2003;167:723-5. Prospective study of 84 patients with pleural tuberculosis found induced sputum culture was helpful in patients with no infiltrate on CXR; 55% of patients with effusion and otherwise clear CXR were culture positive, although only 12% had a rapid diagnosis via positive smears. http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=12598215 **See also section for Mycobacterial Disease, HIV infection. | |||||||||
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