Evidence map›Paper›PMID 26071191›Full record

Observational studyAnnals of clinical microbiology and antimicrobials2015

Point-of-care multiplex PCR promises short turnaround times for microbial testing in hospital-acquired pneumonia--an observational pilot study in critical ill patients.

Nils Kunze, Onnen Moerer, Nicolas Steinmetz, Marco H Schulze, Michael Quintel, Thorsten Perl

Registry-linked trialAbstract readObservational Study
In one paragraph

Observational study in Annals of clinical microbiology and antimicrobials, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01858974 (Identification of Microbes Through Detection of Pathogen Specific DNA Using Multiplex PCR as a Point of Care Diagnostic Tool in the Setting of Pneumonia), which is not on this map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
–field-weighted citation impact
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.

NCT01858974 completednot on this map

Identification of Microbes Through Detection of Pathogen Specific DNA Using Multiplex PCR as a Point of Care Diagnostic Tool in the Setting of Pneumonia

TypeobservationalSponsorUniversity of GöttingenRan2013 to 2014Enrolled60ConditionsAcute Lower Respiratory Tract Infection, Pneumonia
3 · Its place in the literature

Who cites it

26 citing papers in PubMed.

  1. Observational
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Review
  8. Review
  9. Article
  10. An evaluation of the Unyvero pneumonia system for rapid detection of microorganisms and resistance markers of lower respiratory infections-a multicenter prospective study on ICU patients.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2021
    Article
  11. Review
  12. Article
  13. Observational
  14. Article
  15. Review
  16. Community-acquired bacterial pneumonia in adults: An update.The Indian journal of medical research · 2020
    Review
  17. Article
  18. Comparison of Unyvero P55 Pneumonia Cartridge, in-house PCR and culture for the identification of respiratory pathogens and antibiotic resistance in bronchoalveolar lavage fluids in the critical care setting.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2019
    Article
  19. Article
  20. In vitro antimicrobial susceptibility testing methods: agar dilution to 3D tissue-engineered models.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2018
    Review
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

6 authors.

Nils KunzeDepartment of Anaesthesiology, University Medical Centre, University of Göttingen, Robert-Koch-Straße 40, Göttingen, 37075, Germany. nkunze@gwdg.de.
Onnen MoererDepartment of Anaesthesiology, University Medical Centre, University of Göttingen, Robert-Koch-Straße 40, Göttingen, 37075, Germany. omoerer@gwdg.de.
Nicolas SteinmetzDepartment of Anaesthesiology, University Medical Centre, University of Göttingen, Robert-Koch-Straße 40, Göttingen, 37075, Germany. nicolas.steinmetz@med.uni-goettingen.de.
Marco H SchulzeInstitute for Medical Microbiology, University Medical Centre, University of Göttingen, Kreuzbergring 57, Göttingen, 37075, Germany. schulze.marco@med.uni-goettingen.de.
Michael QuintelDepartment of Anaesthesiology, University Medical Centre, University of Göttingen, Robert-Koch-Straße 40, Göttingen, 37075, Germany. mquintel@gwdg.de.
Thorsten PerlDepartment of Anaesthesiology, University Medical Centre, University of Göttingen, Robert-Koch-Straße 40, Göttingen, 37075, Germany. tperl@gwdg.de.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe early beginning of an adequate antibiotic therapy is crucial in hospital-acquired pneumonia (HAP), but depends on the results of conventional microbiological diagnostics (cMD). It was the aim of this study to evaluate the performance and turnaround times of a new point-of-care multiplex polymerase chain reaction (mPCR) system for rapid identification of pathogens and antibiotic resistance markers. We assessed the applicability of the system under real-life conditions in critical ill patients with HAP.

methodsWe enrolled forty critical ill patients with clinical signs for HAP into an observational study. Two samples of respiratory secretions were collected during one course of aspiration and cMD and mPCR testing (Unyvero, Curetis AG, Holzgerlingen, Germany) were performed immediately. The mPCR device was operated as a point-of-care system at the intensive care unit. We compared turnaround times, results of pathogen identification and results of antibiotic resistance testing of both methods.

resultsMean turnaround times (min-max) were 6.5 h (4.7-18.3 h) for multiplex PCR and 71 h (37.2-217.8 h) for conventional microbiology (final cMD results, incomplete results neglected). 60% (n = 24) of the mPCR tests were completely valid. Complete test failure occurred in 10% (n = 4) and partial test failure occurred in 30% (n = 12). We found concordant results in 45% (n = 18) and non-concordant results in 45% (n = 18) of all patients. 55% (n = 16) of the results were concordant in patients with a clinical pulmonary infection score (CPIS) > 5 (n = 29). Concordant results included three cases of multidrug resistant bacteria. MPCR frequently detected antibiotic resistance markers that were not found by cMD.

conclusionsUnyvero allowed point-of-care microbial testing with short turnaround times. The performance of the system was poor. However, an improved system with a more reliable performance and an extended microbial panel could be a useful addition to cMD in intensive care medicine.

trial registrationClinicalTrials.gov NCT01858974 (registered 16 May 2013).

Indexed as

Point-of-Care SystemsAdultAgedAged, 80 and overAnimalsCritical IllnessCross InfectionFemaleGermanyHumansMaleMiddle AgedMolecular Diagnostic TechniquesMultiplex Polymerase Chain ReactionPilot ProjectsPneumonia

Identifiers

PMID26071191
PMCPMC4469099

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Registered trials

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.