Evidence map›Paper›PMID 24976983›Full record

ArticleJournal of thoracic disease2014

A comparison between the efficiency of the Xpert MTB/RIF assay and nested PCR in identifying Mycobacterium tuberculosis during routine clinical practice.

Cheol-Hong Kim, Heungjeong Woo, In Gyu Hyun, Changhwan Kim, Jeong-Hee Choi, Seung-Hun Jang, Sang Myeon Park, Dong-Gyu Kim, Myung Goo Lee, Ki-Suck Jung and 2 more

Open access · greenAbstract read
In one paragraph

Article in Journal of thoracic disease, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 5 pooled it
1.3field-weighted citation impact, top 22% 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

16 citing papers in PubMed, 5 syntheses or guidelines pooled it, 20 citations in OpenAlex.

  1. Pooled it
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  5. XpertThe Cochrane database of systematic reviews · 2018
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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

12 authors at 1 institution in 1 country.

Cheol-Hong Kim1 Department of Internal Medicine, 2 Lung Research Institute, 3 Department of Laboratory Medicine, Hallym University College of Medicine, Chuncheon, Korea.
Heungjeong Woo1 Department of Internal Medicine, 2 Lung Research Institute, 3 Department of Laboratory Medicine, Hallym University College of Medicine, Chuncheon, Korea.
In Gyu Hyun1 Department of Internal Medicine, 2 Lung Research Institute, 3 Department of Laboratory Medicine, Hallym University College of Medicine, Chuncheon, Korea.
Changhwan Kim1 Department of Internal Medicine, 2 Lung Research Institute, 3 Department of Laboratory Medicine, Hallym University College of Medicine, Chuncheon, Korea.
Jeong-Hee Choi1 Department of Internal Medicine, 2 Lung Research Institute, 3 Department of Laboratory Medicine, Hallym University College of Medicine, Chuncheon, Korea.
Seung-Hun Jang1 Department of Internal Medicine, 2 Lung Research Institute, 3 Department of Laboratory Medicine, Hallym University College of Medicine, Chuncheon, Korea.
Sang Myeon Park1 Department of Internal Medicine, 2 Lung Research Institute, 3 Department of Laboratory Medicine, Hallym University College of Medicine, Chuncheon, Korea.
Dong-Gyu Kim1 Department of Internal Medicine, 2 Lung Research Institute, 3 Department of Laboratory Medicine, Hallym University College of Medicine, Chuncheon, Korea.
Myung Goo Lee1 Department of Internal Medicine, 2 Lung Research Institute, 3 Department of Laboratory Medicine, Hallym University College of Medicine, Chuncheon, Korea.
Ki-Suck Jung1 Department of Internal Medicine, 2 Lung Research Institute, 3 Department of Laboratory Medicine, Hallym University College of Medicine, Chuncheon, Korea.
Jeongwon Hyun1 Department of Internal Medicine, 2 Lung Research Institute, 3 Department of Laboratory Medicine, Hallym University College of Medicine, Chuncheon, Korea.
Hyun Soo Kim1 Department of Internal Medicine, 2 Lung Research Institute, 3 Department of Laboratory Medicine, Hallym University College of Medicine, Chuncheon, Korea.
Hallym University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesPolymerase chain reaction (PCR) for the detection of Mycobacterium tuberculosis (MTB) is more sensitive, specific, and rapid than the conventional methods of acid-fast bacilli (AFB) smear and culture. The aim of this study was to determine if the Xpert MTB/rifampicin (RIF) assay had additional advantages over nested PCR for the detection of MTB in a geographical area with intermediate tuberculosis (TB) incidence.

methodsBetween February and December 2013, the Xpert MTB/RIF assay and MTB nested PCR, as well as AFB smear and culture, were simultaneously performed on 198 clinical samples (160 pulmonary and 38 non-pulmonary specimens) collected from 171 patients hospitalized at Hallym University Medical Center for possible TB. The accuracy of the diagnosis of MTB culture-positive TB and the turnaround time of reporting laboratory results were calculated and compared. Rifampin resistance by the Xpert MTB/RIF assay was reviewed with that of conventional drug susceptibility testing (DST).

resultsThe sensitivity, specificity, and positive and negative predictive values of the Xpert MTB/RIF assay and MTB nested PCR for diagnosis of MTB culture-positive pulmonary TB were 86.1% vs. 69.4% (P=0.1563), 97.8% vs. 94.1% (P=0.2173), 91.2% vs. 75.8% (P=0.1695), and 96.4% vs. 92.0% (P=0.2032), respectively. The median turnaround times of the Xpert MTB/RIF assay and MTB nested PCR were 0 [0-4] days and 4 [1-11] days, respectively (P<0.001). Two cases of rifampin resistance, as determined by the Xpert MTB/RIF assay, were found to be multi-drug resistant (MDR) pulmonary TB by DST.

conclusionsThe Xpert MTB/RIF assay seemed to be sensitive, specific, and comparable to nested PCR for identifying MTB among clinically suspected TB patients, and the assay can be valuable in giving a timely identification of resistance to rifampin.

Indexed as

Mycobacterium tuberculosis (MTB)polymerase chain reaction (PCR)pulmonary tuberculosis

Identifiers

PMID24976983
PMCPMC4073381
OpenAlexW1849644752

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.