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Comparison between Ogawa-Kudoh and modified Petroff techniques for mycobacteria cultivation in the diagnosis of pulmonary tuberculosis

Overview of attention for article published in Einstein (São Paulo), June 2018
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Title
Comparison between Ogawa-Kudoh and modified Petroff techniques for mycobacteria cultivation in the diagnosis of pulmonary tuberculosis
Published in
Einstein (São Paulo), June 2018
DOI 10.1590/s1679-45082018ao4214
Pubmed ID
Authors

Ronaldo Rodrigues da Costa, Suzane Fernandes da Silva, Romário Costa Fochat, Raquel Leite Macedo, Thamiris Vilela Pereira, Marcio Roberto Silva, Carmen Perches Gomide Pinto, Isabel Cristina Gonçalves Leite

Abstract

To compare the performance of the Ogawa-Kudoh method with the modified Petroff technique in diagnosis of pulmonary tuberculosis. A total of 205 sputum samples from 166 patients with clinical suspicion or under pulmonary tuberculosis follow-up, seen at a public tertiary care hospital, from July 2014 to July 2016 were used. All samples were simultaneously processed using the Ogawa-Kudoh and modified Petroff decontamination methods, according to the recommendations of the Ministry of Health. In the statistical analysis, the McNemar test and the Kappa index were used, respectively, to compare proportions and verify agreement between data. The Ogawa-Kudoh and modified Petroff methods were efficient in mycobacteria detection, with no significant differences in results (p=0.549) and contamination rate of the cultures (p=0.065). The agreement between techniques was considered excellent (Kappa index of 0.877) and Ogawa-Kudoh, as compared to the modified Petroff technique, showed sensitivity of 90.4%, specificity of 96.6%, positive predictive value of 94.3% and negative predictive value of 94.2%. The Ogawa-Kudoh technique proved to be sufficiently sensitive and specific for diagnosis of pulmonary tuberculosis, and, therefore, suitable for routine laboratory application. Since it is simple, low-cost and has less technical requirements for biosafety and professional training, Ogawa-Kudoh is an alternative for managers and healthcare professionals to promote the expansion of bacteriological diagnostic coverage of pulmonary tuberculosis.

Twitter Demographics

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Mendeley readers

The data shown below were compiled from readership statistics for 18 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 18 100%

Demographic breakdown

Readers by professional status Count As %
Student > Master 5 28%
Student > Bachelor 5 28%
Researcher 2 11%
Other 1 6%
Student > Postgraduate 1 6%
Other 0 0%
Unknown 4 22%
Readers by discipline Count As %
Immunology and Microbiology 4 22%
Medicine and Dentistry 3 17%
Pharmacology, Toxicology and Pharmaceutical Science 2 11%
Biochemistry, Genetics and Molecular Biology 2 11%
Agricultural and Biological Sciences 1 6%
Other 3 17%
Unknown 3 17%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 03 July 2018.
All research outputs
#14,033,810
of 15,915,110 outputs
Outputs from Einstein (São Paulo)
#166
of 229 outputs
Outputs of similar age
#238,954
of 278,099 outputs
Outputs of similar age from Einstein (São Paulo)
#2
of 2 outputs
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So far Altmetric has tracked 229 research outputs from this source. They receive a mean Attention Score of 2.8. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
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