Evidence map›Paper›PMID 8815093›Full record

ArticleJournal of clinical microbiology1996

Diagnostic performance of amplified Mycobacterium tuberculosis direct test with cerebrospinal fluid, other nonrespiratory, and respiratory specimens.

G E Pfyffer, P Kissling, E M Jahn, H M Welscher, M Salfinger, R Weber

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Journal of clinical microbiology, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed, 2 pooled it
16.7field-weighted citation impact, top 1% 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

53 citing papers in PubMed, 2 syntheses or guidelines pooled it, 169 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Primary Tubercular Abscess of the Axilla-a Rare Case.The Indian journal of surgery · 2017
    Article
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  5. Review
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  10. Evaluation of the results of Mycobacterium tuberculosis direct test (MTD) and Mycobacterial culture in urine samples.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2008
    Article
  11. Review
  12. Multidrug-resistant tuberculous meningitis.Current neurology and neuroscience reports · 2007
    Review
  13. Article
  14. Article
  15. Molecular diagnostics in tuberculosis.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2005
    Review
  16. 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.

G E PfyfferSwiss National Center for Mycobacteria, Department of Medical Microbiology, University of Zurich, Switzerland.
P Kissling
E M Jahn
H M Welscher
M Salfinger
R Weber
Swiss National Science Foundation · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Gen-Probe Amplified Mycobacterium tuberculosis Direct Test (MTD) was adapted to be used for cerebrospinal fluid (CSF) and a large variety of other nonrespiratory specimens. Standardized with artificially spiked dilution series of CSF, the modified MTD procedure consists of (i) increasing the amount of sample 10-fold, (ii) pretreating the specimen with a detergent, and (iii) increasing the amplification time from 2 to 3 h. Performance of MTD in a clinical mycobacteriology laboratory was tested over an extended period of time, involving a total of 322 nonrespiratory as well as 1,117 respiratory specimens from 998 patients. Results from MTD were compared with those from microscopy, culture, analysis of tuberculostearic acid by gas-liquid chromatography-mass spectrometry (CSF only), and the final clinical diagnosis. When MTD results were compared with resolved data, the sensitivity, specificity, and positive and negative predictive values for MTD were 93.1, 97.7, 90.0, and 98.5%, respectively, for nonrespiratory specimens and 86.6, 96.4, 76.8, and 98.1%, respectively, for respiratory specimens. Our data demonstrate that (i) MTD is a robust, highly sensitive and specific technique for the rapid detection of M. tuberculosis complex in all types of clinical specimens, (ii) there was no statistically significant difference (P > 0.005) in sensitivity and specificity for nonrespiratory compared with respiratory specimens, and (iii) repeating all MTDs which yield a result between 30,000 and 200,000 relative light units would help prevent a large number of false positives and, thus, enhance test specificity.

Indexed as

Bacteriological TechniquesNucleic Acid Amplification TechniquesAdolescentAdultAgedAged, 80 and overDiagnostic ErrorsEvaluation Studies as TopicFemaleHumansMaleMiddle AgedMycobacterium tuberculosisPolymerase Chain ReactionSensitivity and SpecificityTuberculosis

Identifiers

PMID8815093
PMCPMC228902
OpenAlexW2129754454

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.