Evidence map›Paper›PMID 25942570›Full record

ArticlePathogens (Basel, Switzerland)2015

Direct detection of methicillin-resistant Staphylococcus aureus in sputum specimens from patients with hospital-associated pneumonia using a novel multilocus PCR assay.

Zeng-Guang Huang, Xing-Zheng Zheng, Jing Guan, Shu-Nian Xiao, Chao Zhuo

Open access · goldAbstract read
In one paragraph

Article in Pathogens (Basel, Switzerland), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 28% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Pooled it
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  7. Quantification ofRSC advances · 2019
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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

5 authors at 4 institutions in 1 country.

Zeng-Guang HuangState Key Laboratory of Respiratory Diseases, the first affiliated hospital of Guangzhou Medical University, Guangzhou, 510120, China. dyshxdtkml@163.com.
Xing-Zheng ZhengPeking University Health Science Center, Beijing, 100191, China. zxz806@bjmu.edu.cn.
Jing GuanState Key Laboratory of Respiratory Diseases, the first affiliated hospital of Guangzhou Medical University, Guangzhou, 510120, China. g-jing.27@163.com.
Shu-Nian XiaoState Key Laboratory of Respiratory Diseases, the first affiliated hospital of Guangzhou Medical University, Guangzhou, 510120, China. 240671094@qq.com.
Chao ZhuoState Key Laboratory of Respiratory Diseases, the first affiliated hospital of Guangzhou Medical University, Guangzhou, 510120, China. chao_sheep@263.net.
First Affiliated Hospital of Guangzhou Medical University · CNGuangzhou Medical University · CNPeking University · CNState Key Laboratory of Respiratory Disease · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Methicillin-resistant Staphylococcus aureus (MRSA) is a significant cause of hospital-associated pneumonia (HAP). The rapid identification of MRSA would be beneficial for early diagnosis. The study aimed to evaluate a multilocus, fluorescence-based PCR assay based on the detection of mecA and nuc genes for identification of S. aureusin lower respiratory tract (LRT) specimens. Sensitivity and specificity of the PCR assay were analyzed. Clinical evaluation for the assay was performed using LRT specimens from patients with HAP, and the sensitivity, specificity, positive and negative predictive values (PPV and NPV) were evaluated in comparison with semi-quantitative culture methods. The result showed the assay provided positive identification of all MRSA reference strains with a limit of detection for MRSA of 4 × 103 CFU/mL. Compared with semi-quantitative culture, the sensitivity, specificity, PPV and NPV were 100%, 89.6%, 75.0%, and 100%, respectively. A positive correlation between MRSA bacterial colonies and PCR copy number was found. The specificity and PPV reached 96.6% and 89.7% respectively, if the PCR copy number reached a definite positive threshold of 5.96 × 105. It suggested that this novel multilocus, fluorescence-based PCR assay proved to be a fast, sensitive and specific tool for direct detection of MRSA from LRT specimens.

Identifiers

PMID25942570
PMCPMC4493470
OpenAlexW2170764138

What OpenQuestion holds

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LicenceCC BY
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.