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Open Access 01-12-2019 | Meningococcus | Research article

A systematic review of the diagnostic accuracy of Loop-mediated-isothermal AMPlification (LAMP) in the diagnosis of invasive meningococcal disease in children

Authors: Thomas Waterfield, Derek Fairley, Bronagh Blackwood, James McKenna, Michael D. Shields

Published in: BMC Pediatrics | Issue 1/2019

Abstract

Background

The early recognition of meningococcal disease in children is vital. During the prodrome however, meningococcal infection presents similarly to many self-limiting viral infections. This mandates a cautious approach with many children receiving unnecessary broad-spectrum parenteral antibiotics. Advances in nucleic acid amplification techniques mean that it is now possible to test for Neisseria meningitidis DNA using Loop-mediated-isothermal AMPlification (LAMP). This technique is quicker than traditional PCR techniques and can be performed using simple equipment.

Methods

Prior to performing this systematic review, a protocol was developed adhering to PRISMA P standards and underwent full external peer review. This systematic review was registered with PROSPERO (CRD42017078026). The index test assessed was LAMP for Neisseria meningitidis and the reference standard was culture or qPCR of a sterile site detecting Neisseria meningitidis.

Results

We identified 95 records in total: 94 records from the electronic databases and 1 additional study from the grey literature. After removal of duplicates, 36 studies were screened, and 31 studies excluded based on the title/abstract. Five full text studies underwent full text review and three studies, including 2243 tests on 1989 patients aged between 7 days and 18 years were included in the final systematic review. In all studies the LAMP assay and qPCR primers were directed against the ctrA region of the Neisseria meningitidis bacteria. The diagnostic accuracy of LAMP testing for invasive meningococcal disease was reported as high (sensitivity 0.84–1.0 and specificity 0.94–1.0) in all studies irrespective of the sample tested (CSF, Blood, Swab).

Conclusions

We included three studies with 2243 tests on 1989 patients using CSF, blood samples or naso/oropharyngeal swabs. The studies were all of a high quality and deemed at low risk of bias. Results show that LAMP testing on blood and CSF was highly accurate when compared to qPCR/culture.

LAMP testing for Neisseria meningitidis is fast and highly accurate and therefore has the potential to be used to rapidly rule in/out meningococcal disease in children. Given the life-threatening nature of meningococcal infection further research is required to demonstrate the safety and efficacy of using LAMP testing for Neisseria meningitidis as a rule in/out test.

Trial registration

This systematic review was registered prospectively with PROSPERO on the 29/11/2017 (CRD42017078026).

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Title: A systematic review of the diagnostic accuracy of Loop-mediated-isothermal AMPlification (LAMP) in the diagnosis of invasive meningococcal disease in children
Authors: Thomas Waterfield
Derek Fairley
Bronagh Blackwood
James McKenna
Michael D. Shields
Publication date: 01-12-2019
Publisher: BioMed Central
Keywords: Meningococcus
Meningitis
Polymerase Chain Reaction
Published in: BMC Pediatrics / Issue 1/2019
Electronic ISSN: 1471-2431
DOI: https://doi.org/10.1186/s12887-019-1403-0

Keynote webinar | Spotlight on sleep in brain health

Springer Medicine

A systematic review of the diagnostic accuracy of Loop-mediated-isothermal AMPlification (LAMP) in the diagnosis of invasive meningococcal disease in children

Abstract

Background

Methods

Results

Conclusions

Trial registration

Keynote webinar | Spotlight on sleep in brain health

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

Trial registration

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