Evidence map›Paper›PMID 24429319›Full record

ArticleThe international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease2014

Performance of the MTBDRsl assay in Georgia.

N Tukvadze, N Bablishvili, R Apsindzelashvili, H M Blumberg, R R Kempker

Abstract readComparative StudyEvaluation Study
In one paragraph

Article in The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Impact ofAntimicrobial agents and chemotherapy · 2017
    Article
  7. GenoTypeThe Cochrane database of systematic reviews · 2016
    Review
  8. Article
  9. Article
  10. Article
  11. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

N TukvadzeNational Center for Tuberculosis and Lung Diseases, Tbilisi, Georgia.
N BablishviliNational Center for Tuberculosis and Lung Diseases, Tbilisi, Georgia.
R ApsindzelashviliNational Center for Tuberculosis and Lung Diseases, Tbilisi, Georgia.
H M BlumbergDivision of Infectious Diseases, Emory University School of Medicine, Atlanta, Georgia, USA.
R R KempkerDivision of Infectious Diseases, Emory University School of Medicine, Atlanta, Georgia, USA.

Funding

Emory-Georgia TB Research Training ProgramD43TW007124 · FIC · EMORY UNIVERSITY · PI HENRY M BLUMBERG, Nestani Tukvadze · 2004 to 2026
$4.6M
Intra Cavitary Pharmacokinetics and Drug Resistance in Pulmonary TuberculosisK23AI103044 · NIAID · EMORY UNIVERSITY · PI KEMPKER, RUSSELL RYAN · 2013 to 2017
$910k
FIC NIH HHS D43 TW007124FIC NIH HHS D43TW007124FIC NIH HHS D43TW007124-06S1NIAID NIH HHS K23 AI103044NIAID NIH HHS K23AI103044
6 · The paper itself

Abstract

settingThe country of Georgia has a high burden of multi- (MDR-TB) and extensively drug-resistant tuberculosis (XDR-TB).

objectiveTo assess the performance of the GenoType® MTBDRsl assay in the detection of resistance to kanamycin (KM), capreomycin (CPM) and ofloxacin (OFX), and of XDR-TB.

designConsecutive acid-fast bacilli smear-positive sputum specimens identified as MDR-TB using the MTBDRplus test were evaluated with the MTBDRsl assay and conventional second-line drug susceptibility testing (DST).

resultsAmong 159 specimens, amplification was adequate in 154 (97%), including 9 of 9 culture-negative and 2 of 3 contaminated specimens. Second-line DST revealed that 17 (12%) Mycobacterium tuberculosis isolates were XDR-TB. Compared to DST, the MTBDRsl had 41% sensitivity and 98% specificity in detecting XDR-TB and 81% sensitivity and 99% specificity in detecting OFX resistance. Sensitivity was low in detecting resistance to KM (29%) and CPM (57%), while specificity was respectively 99% and 94%. Median times from sputum collection to second-line DST and MTBDRsl results were 70-104 vs. 10 days.

conclusionAlthough the MTBDRsl assay had a rapid turnaround time, detection of second-line drug resistance was poor compared to DST. Further genetic mutations associated with resistance to second-line drugs should be included in the assay to improve test performance and clinical utility.

Indexed as

Drug Resistance, Multiple, BacterialMicrobial Sensitivity TestsMolecular Diagnostic TechniquesAntitubercular AgentsCapreomycinExtensively Drug-Resistant TuberculosisFeasibility StudiesGeorgia (Republic)HumansKanamycinMycobacterium tuberculosisOfloxacinPredictive Value of TestsReproducibility of ResultsSputumTuberculosis, Multidrug-ResistantAntitubercular AgentsCapreomycinKanamycinOfloxacin

Identifiers

PMID24429319
PMCPMC4034680

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.