Evidence map›Paper›PMID 19284561›Full record

ArticleBMC clinical pathology2009

Performance of the Genotype MTBDRPlus assay in the diagnosis of tuberculosis and drug resistance in Samara, Russian Federation.

Vladyslav Nikolayevskyy, Yanina Balabanova, Tatyana Simak, Nadezhda Malomanova, Ivan Fedorin, Francis Drobniewski

Open access · hybridAbstract read
In one paragraph

Article in BMC clinical pathology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 3 pooled it
4.1field-weighted citation impact, top 6% of its field
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

38 citing papers in PubMed, 3 syntheses or guidelines pooled it, 66 citations in OpenAlex.

  1. Pooled it
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  4. Trial
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  6. Article
  7. Review
  8. Article
  9. Experimental platform utilising melting curve technology for detection of mutations in Mycobacterium tuberculosis isolates.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2018
    Article
  10. Review
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  12. Cryptic Microheteroresistance Explains Mycobacterium tuberculosis Phenotypic Resistance.American journal of respiratory and critical care medicine · 2017
    Article
  13. Article
  14. Article
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  16. Detection of katG and inhA mutations to guide isoniazid and ethionamide use for drug-resistant tuberculosis.The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease · 2016
    Article
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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

6 authors at 1 institution in 1 country.

Vladyslav NikolayevskyyUK HPA Mycobacterium Reference Unit, Clinical TB and HIV Research Group, Institute of Cell and Molecular Science, Barts and The London School of Medicine, Queen Mary University, 2 Newark Street, London, E1 2AT, UK. v.nikolayevskyy@qmul.ac.uk
Yanina Balabanova
Tatyana Simak
Nadezhda Malomanova
Ivan Fedorin
Francis Drobniewski
Queen Mary University of London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRussia is a high tuberculosis (TB) burden country with a high prevalence of multidrug resistant tuberculosis (MDRTB). Molecular assays for detection of MDRTB on clinical specimens are not widely available in Russia.

resultsWe performed an evaluation of the GenoType MTBDRplus assay (HAIN Lifescience GmbH, Germany) on a total of 168 sputum specimens from individual patients at a public health laboratory in Central Russia, as a model of a middle income site in a region with high levels of drug resistance. Phenotypic drug resistance tests (DST) were performed on cultures derived from the same sputum specimens using the BACTEC 960 liquid media system.Interpretable GenoType MTBDRplus results were obtained for 154(91.7%) specimens with readability rates significantly higher in sputum specimens graded 2+ and 3+ compared to 1+ (RR = 1.17 95%CI 1.04-1.32). The sensitivity and specificity of the assay for the detection of rifampicin (RIF) and isoniazid (INH) resistance and MDR was 96.2%, 97.4%, 97.1% and 90.7%, 83.3%, 88.9% respectively. Mutations in codon 531 of the rpoB gene and codon 315 of the katG gene dominated in RIF and INH resistant strains respectively. Disagreements between phenotypical and molecular tests results (12 samples) could be explained by the presence of rare mutations in strains circulating in Russia and simultaneous presence of resistant and sensitive bacilli in sputum specimens (heteroresistance).

conclusionHigh sensitivity, short turnaround times and the potential for screening large numbers of specimens rapidly, make the GenoType MTBDRplus assay suitable as a first-line screening assay for drug resistant TB.

Identifiers

PMID19284561
PMCPMC2660363
OpenAlexW1989597041

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Registered trials

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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.