Document Detail

Drug resistance beyond XDR-TB: results from a large individual patient data meta-analysis.
MedLine Citation:
PMID:  23060633     Owner:  NLM     Status:  Publisher    
The broadest pattern of tuberculosis drug resistance for which a consensus definition exists is extensively drug-resistant tuberculosis (XDR-TB). It is not known if additional drug resistance portends worsened patient outcomes. This study compares treatment outcomes of XDR-TB patients with and without additional resistance to explore the need for a new definition.Individual patient data on XDR-TB outcomes were included in a meta-analysis comparing outcomes between XDR-alone and three non-mutually exclusive XDR-TB patient groups: XDR plus resistance to all the second-line injectables (sli) capreomycin and kanamycin/amikacin (XDR+2sli); XDR plus resistance to second-line injectables and to ≥1 Group 4 drug, i.e.: ethionamide/prothionamide, cycloserine/terizidone or PAS (XDR+sliG4); and XDR+sliG4 plus resistance to ethambutol and/or pyrazinamide (XDR+sliG4EZ).Of 405 XDR-TB cases, 301 were XDR-alone; 68 XDR+2sli; 48 XDR+sliG4; and 42 XDR+sliG4EZ. In multivariate analysis, the odds of cure were significantly lower in XDR+2sli (adjusted Odds Ratio (aOR): 0.4; 95% Confidence Interval: 0.2-0.8) compared to XDR-alone, while odds of failure+death were higher in all XDR patients with additional resistance (aOR range: 2.6-2.8).Patients with additional resistance beyond XDR-TB showed poorer outcomes. Limitations in availability, accuracy and reproducibility of current DST methods preclude the adoption of a useful definition beyond the one currently used for XDR-TB.
G B Migliori; G Sotgiu; N R Gandhi; D Falzon; K Deriemer; R Centis; M G Hollm-Delgado; D Palmero; C Pérez-Guzmán; M H Vargas; L D'Ambrosio; A Spanevello; M Bauer; E D Chan; H S Schaaf; S Keshavjee; T H Holtz; Dick Menzies;
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-11
Journal Detail:
Title:  The European respiratory journal : official journal of the European Society for Clinical Respiratory Physiology     Volume:  -     ISSN:  1399-3003     ISO Abbreviation:  Eur. Respir. J.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8803460     Medline TA:  Eur Respir J     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Fondazione S. Maugeri, Care and Research Institute, Tradate, Italy.
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