Diagnosis and treatment of TB patients with rifampicin resistance detected using Xpert(®) MTB/RIF in Zimbabwe.


Charambira, K; Ade, S; Harries, AD; Ncube, RT; Zishiri, C; Sandy, C; Mutunzi, H; Takarinda, K; Owiti, P; Mafaune, P; Chonzi, P; (2016) Diagnosis and treatment of TB patients with rifampicin resistance detected using Xpert(®) MTB/RIF in Zimbabwe. Public Health Action, 6 (2). pp. 122-8. ISSN 2220-8372 DOI: https://doi.org/10.5588/pha.16.0005

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Abstract

In Zimbabwe, there are concerns about the management of tuberculosis (TB) patients with rifampicin (RMP) resistance diagnosed using Xpert(®) MTB/RIF. To assess linkages between diagnosis and treatment for these patients in Harare and Manicaland provinces in 2014. A retrospective cohort study. Of 20 329 Xpert assays conducted, 90% were successful, 11% detected Mycobacterium tuberculosis and 4.5% showed RMP resistance. Of 77 patients with RMP-resistant TB diagnosed by Xpert, 70% had samples sent to the reference laboratory for culture and drug susceptibility testing (CDST); 53% of the samples arrived. In 21% the samples showed M. tuberculosis growth, and in 17% the DST results were recorded, all of which confirmed RMP resistance. Of the 77 patients, 34 (44%) never started treatment for multidrug-resistant (MDR) TB, with documented reasons being death, loss to follow-up and incorrect treatment. Of the 43 patients who started MDR-TB treatment, 12 (71%) in Harare and 17 (65%) in Manicaland started within 2 weeks of diagnosis. Xpert has been rolled out successfully in two Zimbabwe provinces. However, the process of confirming CDST for Xpert-diagnosed RMP-resistant TB works poorly, and many patients are either delayed or never initiate MDR-TB treatment. These shortfalls must be addressed at the programmatic level. Abstract available from the publisher. Abstract available from the publisher.

Item Type: Article
Faculty and Department: Faculty of Infectious and Tropical Diseases > Dept of Clinical Research
PubMed ID: 27358806
Web of Science ID: 378323200014
URI: http://researchonline.lshtm.ac.uk/id/eprint/2572514

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