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. 2012 Aug 28:5:462.
doi: 10.1186/1756-0500-5-462.

Epidemiology of anti-tuberculosis drug resistance patterns and trends in tuberculosis referral hospital in Addis Ababa, Ethiopia

Dereje Abate  1 , Bineyam Taye, Mohammed Abseno, Sibhatu Biadgilign
Affiliations

Epidemiology of anti-tuberculosis drug resistance patterns and trends in tuberculosis referral hospital in Addis Ababa, Ethiopia

Dereje Abate et al. BMC Res Notes. .

Abstract

Background: Drug-resistant TB has emerged as a major challenge facing TB prevention and control efforts. In Ethiopia, the extent/trend of drug resistance TB is not well known. The aim of this study was to determine the pattern and trend of resistance to first line anti-TB drugs among culture positive retreatment cases at St.Peter's TB Specialized Hospital.

Findings: A hospital based retrospective study was used to assess the pattern of anti-TB drug resistance among previously treated TB patients referred to St.Peter's TB Specialized Hospital from January 2004-December 2008 Gregorian calendar(GC) for better diagnosis and treatment. Among 376 culture positive for M. tuberculosis one hundred and two (27.1%) were susceptible to all of the four first line anti-TB drugs -Isoniazid (INH), Rifampicin (RIF), Ethambutol (ETB) & Streptomycin (STM). While 274 (72.9%) were resistant to at least one drug. Any resistance to STM (67.3%) was found to be the most common and the prevalence of MDR-TB was 174 (46.3%). Trend in resistance rate among re-treatment cases from 2004 to 2008 showed a significant increase for any drug as well as for INH, RIF, and MDR resistance (P <0.05 for trend).

Conclusions: There has been an increasing trend in drug resistance in recent years, particularly in retreatment cases. Therefore, establishing advanced diagnostic facilities for early detection of MDR-TB and expanding second line treatment center to treat MDR-TB patients and to prevent its transmission is recommended.

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Figures

Figure 1
Figure 1
Frequency of First line Tuberculosis Drug resistance in St. Peter's TB Specialized Hospital, 2011.
Figure 2
Figure 2
Trend in drug resistance to anti-TB drugs in re- treatment cases, St. Peter’s TB Specialized Hospital, 2011.
See this image and copyright information in PMC

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