Evidence map›Paper›PMID 30665395›Full record

ArticleBMC pulmonary medicine2019

An evaluation of methods for the isolation of nontuberculous mycobacteria from patients with cystic fibrosis, bronchiectasis and patients assessed for lung transplantation.

D Stephenson, A Perry, M R Appleby, D Lee, J Davison, A Johnston, A L Jones, A Nelson, S J Bourke, M F Thomas and 7 more

Open access · goldAbstract read
In one paragraph

Article in BMC pulmonary medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 2 pooled it
3.7field-weighted citation impact, top 7% 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

25 citing papers in PubMed, 2 syntheses or guidelines pooled it, 36 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Recovery of nontuberculous mycobacteria from non-cystic fibrosis respiratory specimens using a decontamination-free selective agar.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2026
    Article
  6. Challenges in the Diagnosis and Treatment of Mycobacterium abscessus Infections.Revista da Sociedade Brasileira de Medicina Tropical · 2026
    Review
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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

17 authors at 4 institutions in 1 country.

D StephensonMicrobiology Department, Freeman Hospital, Newcastle upon Tyne, NE7 7DN, UK.
A PerryMicrobiology Department, Freeman Hospital, Newcastle upon Tyne, NE7 7DN, UK.
M R ApplebyMicrobiology Department, Freeman Hospital, Newcastle upon Tyne, NE7 7DN, UK.
D LeeMicrobiology Department, Freeman Hospital, Newcastle upon Tyne, NE7 7DN, UK.
J DavisonAdult Bronchiectasis Service, Freeman Hospital, Newcastle upon Tyne, UK.
A JohnstonFaculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, UK.
A L JonesFaculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, UK.
A NelsonFaculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, UK.
S J BourkeAdult Cystic Fibrosis Centre, Royal Victoria Infirmary, Newcastle upon Tyne, UK.
M F ThomasPaediatric Respiratory Unit, Great North Children's Hospital, Newcastle upon Tyne, UK.
A De SoyzaAdult Bronchiectasis Service, Freeman Hospital, Newcastle upon Tyne, UK.
J L LordanCardiopulmonary Transplant Service, Freeman Hospital, Newcastle upon Tyne, UK.
J LumbMicrobiology Department, Freeman Hospital, Newcastle upon Tyne, NE7 7DN, UK.
A E RobbMicrobiology Department, Freeman Hospital, Newcastle upon Tyne, NE7 7DN, UK.
J R SamuelMicrobiology Department, Freeman Hospital, Newcastle upon Tyne, NE7 7DN, UK.
K E WaltonMicrobiology Department, Freeman Hospital, Newcastle upon Tyne, NE7 7DN, UK.
J D PerryMicrobiology Department, Freeman Hospital, Newcastle upon Tyne, NE7 7DN, UK. John.Perry@nuth.nhs.uk.ORCID http://orcid.org/0000-0001-7225-7508
Freeman Hospital · GBNorthumbria University · GBGreat North Children's Hospital · GBRoyal Victoria Infirmary · GB

Funding

bioMerieux N/A
6 · The paper itself

Abstract

backgroundRGM medium is an agar-based, selective culture medium designed for the isolation of nontuberculous mycobacteria (NTM) from the sputum of patients with cystic fibrosis (CF). We evaluated RGM medium for the detection of NTM in patients with CF (405 samples), bronchiectasis (323 samples) and other lung diseases necessitating lung transplantation (274 samples).

methodsIn total, 1002 respiratory samples from 676 patients were included in the study. Direct culture on RGM medium, with incubation at two temperatures (30 °C and 37 °C), was compared with conventional culture of decontaminated samples for acid-fast bacilli (AFB) using both a solid medium (Löwenstein-Jensen medium) and a liquid medium (the Mycobacterial Growth Indicator Tube; MGIT).

resultsFor all three patient groups, significantly more isolates of NTM were recovered using RGM medium incubated at 30 °C than by any other method (sensitivity: 94.6% vs. 22.4% for conventional AFB culture; P < 0.0001). Significantly more isolates of Mycobacterium abscessus complex were isolated on RGM at 30 °C than by AFB culture (sensitivity: 96.1% vs. 58.8%; P < 0.0001). The recovery of Mycobacterium avium complex was also greater using RGM medium at 30 °C compared to AFB culture (sensitivity: 83% vs. 70.2%), although this difference was not statistically significant and a combination of methods was necessary for optimal recovery (P = 0.21).

conclusionsIn the largest study of RGM medium to date, we reaffirm its utility for isolation of NTM from patients with CF. Furthermore; we show that it also provides an effective tool for culture of respiratory samples from patients with bronchiectasis and other lung diseases.

Indexed as

AdolescentAdultAgedAged, 80 and overBronchiectasisChildChild, PreschoolCulture MediaCulture TechniquesCystic FibrosisFemaleHumansLung DiseasesLung Diseases, InterstitialLung TransplantationMaleCulture MediaAFB cultureBronchiectasisCystic fibrosisLung transplantationMycobacterium abscessus complexMycobacterium avium complexNontuberculous mycobacteria

Identifiers

PMID30665395
PMCPMC6341538
OpenAlexW2917499733

What OpenQuestion holds

Textmetadata
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.