Evidence map›Paper›PMID 20889887›Full record

ArticleThe American journal of tropical medicine and hygiene2010

Optimizing tuberculosis testing for basic laboratories.

Eric Ramos, Samuel G Schumacher, Mark Siedner, Beatriz Herrera, Willi Quino, Jessica Alvarado, Rosario Montoya, Louis Grandjean, Laura Martin, Jonathan M Sherman and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of tropical medicine and hygiene, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.6field-weighted citation impact, top 27% 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

6 citing papers in PubMed, 11 citations in OpenAlex.

  1. Review
  2. Article
  3. The Potential for Testing Stool to Reduce Tuberculosis Missed Diagnoses and Misdiagnoses.The American journal of tropical medicine and hygiene · 2018
    Article
  4. Article
  5. Clinical evaluation of tuberculosis viability microscopy for assessing treatment response.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2015
    Article
  6. 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

12 authors at 2 institutions in 3 countries.

Eric RamosLaboratory of Infectious Diseases Research, Department of Microbiology, Faculty of Sciences, Universidad Peruana Cayetano Heredia, Lima, Peru.
Samuel G Schumacher
Mark Siedner
Beatriz Herrera
Willi Quino
Jessica Alvarado
Rosario Montoya
Louis Grandjean
Laura Martin
Jonathan M Sherman
Robert H Gilman
Carlton A Evans
Universidad Peruana Cayetano Heredia · PEJohns Hopkins University · US

Funding

Wellcome Trust
6 · The paper itself

Abstract

Optimal tuberculosis testing usually involves sputum centrifugation followed by broth culture. However, centrifuges are biohazardous and scarce in the resource-limited settings where most tuberculosis occurs. To optimize tuberculosis testing for these settings, centrifugation of 111 decontaminated sputum samples was compared with syringe-aspiration through polycarbonate membrane-filters that were then cultured in broth. To reduce the workload of repeated microscopic screening of broth cultures for tuberculosis growth, the colorimetric redox indicator 2,3-diphenyl-5-(2-thienyl) tetrazolium chloride was added to the broth, which enabled naked-eye detection of culture positivity. This combination of filtration and colorimetric growth-detection gave similar results to sputum centrifugation followed by culture microscopy regarding mean colony counts (43 versus 48; P = 0.6), contamination rates (0.9% versus 1.8%; P = 0.3), and sensitivity (94% versus 95%; P = 0.7), suggesting equivalency of the two methods. By obviating centrifugation and repeated microscopic screening of cultures, this approach may constitute a more appropriate technology for rapid and sensitive tuberculosis diagnosis in basic laboratories.

Indexed as

AdultAntitubercular AgentsBacteriological TechniquesColorimetryDrug Resistance, Multiple, BacterialFemaleFiltrationHumansLaboratoriesMaleMiddle AgedMycobacterium tuberculosisSensitivity and SpecificitySputumTuberculosisWorkforceAntitubercular Agents

Identifiers

PMID20889887
PMCPMC2946764
OpenAlexW2110709922

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.