Evidence map›Paper›PMID 31200658›Full record

ArticleBMC infectious diseases2019

Invasive meningococcal disease in patients with complement deficiencies: a case series (2008-2017).

Shamez N Ladhani, Helen Campbell, Jay Lucidarme, Steve Gray, Sydel Parikh, Laura Willerton, Stephen A Clark, Aiswarya Lekshmi, Andrew Walker, Sima Patel and 3 more

Open access · goldAbstract read
In one paragraph

Article in BMC infectious diseases, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 10% 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

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 52 citations in OpenAlex.

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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

13 authors at 3 institutions in 1 country.

Shamez N LadhaniImmunisation and Countermeasures Division, Public Health England, 61 Colindale Avenue, London, NW9 5EQ, UK. shamez.ladhani@phe.gov.uk.ORCID http://orcid.org/0000-0002-0856-2476
Helen CampbellImmunisation and Countermeasures Division, Public Health England, 61 Colindale Avenue, London, NW9 5EQ, UK.
Jay LucidarmeMeningococcal Reference Unit, Public Health England, Manchester Royal Infirmary, Manchester, UK.
Steve GrayMeningococcal Reference Unit, Public Health England, Manchester Royal Infirmary, Manchester, UK.
Sydel ParikhImmunisation and Countermeasures Division, Public Health England, 61 Colindale Avenue, London, NW9 5EQ, UK.
Laura WillertonMeningococcal Reference Unit, Public Health England, Manchester Royal Infirmary, Manchester, UK.
Stephen A ClarkMeningococcal Reference Unit, Public Health England, Manchester Royal Infirmary, Manchester, UK.
Aiswarya LekshmiMeningococcal Reference Unit, Public Health England, Manchester Royal Infirmary, Manchester, UK.
Andrew WalkerMeningococcal Reference Unit, Public Health England, Manchester Royal Infirmary, Manchester, UK.
Sima PatelMeningococcal Reference Unit, Public Health England, Manchester Royal Infirmary, Manchester, UK.
Xilian BaiMeningococcal Reference Unit, Public Health England, Manchester Royal Infirmary, Manchester, UK.
Mary RamsayImmunisation and Countermeasures Division, Public Health England, 61 Colindale Avenue, London, NW9 5EQ, UK.
Ray BorrowMeningococcal Reference Unit, Public Health England, Manchester Royal Infirmary, Manchester, UK.
Manchester Royal Infirmary · GBPublic Health England · GBSt George's, University of London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo describe patients with inherited and acquired complement deficiency who developed invasive meningococcal disease (IMD) in England over the last decade.

methodsPublic Health England conducts enhanced surveillance of IMD in England. We retrospectively identified patients with complement deficiency who developed IMD in England during 2008-2017 and retrieved information on their clinical presentation, vaccination status, medication history, recurrence of infection and outcomes, as well as characteristics of the infecting meningococcal strain.

resultsA total of 16 patients with 20 IMD episodes were identified, including four with two episodes. Six patients had inherited complement deficiencies, two had immune-mediated conditions associated with complement deficiency (glomerulonephritis and vasculitis), and eight others were on Eculizumab therapy, five for paroxysmal nocturnal haemoglobinuria and three for atypical haemolytic uraemic syndrome. Cultures were available for 7 of 11 episodes among those with inherited complement deficiencies/immune-mediated conditions and the predominant capsular group was Y (7/11), followed by B (3/11) and non-groupable (1/11) strains. Among patients receiving Eculizumab therapy, 3 of the 9 episodes were due to group B (3/9), three others were NG but genotypically group B, and one case each of groups E, W and Y.

conclusionsIn England, complement deficiency is rare among IMD cases and includes inherited disorders of the late complement pathway, immune-mediated disorders associated with low complement levels and patients on Eculizumab therapy. IMD due to capsular group Y predominates in patient with inherited complement deficiency, whilst those on Eculizumab therapy develop IMD due to more diverse capsular groups including non-encapsulated strains.

Indexed as

AdolescentAdultAntibodies, Monoclonal, HumanizedChildChild, PreschoolComplement System ProteinsEnglandGenotypeHumansImmunologic Deficiency SyndromesMeningococcal InfectionsNational Health ProgramsNeisseria meningitidisPolysaccharides, BacterialRetrospective StudiesYoung AdultAntibodies, Monoclonal, HumanizedComplement System ProteinseculizumabPolysaccharides, BacterialComplement deficiencyEculizumabInvasive meningococcal diseaseRisk factors

Identifiers

PMID31200658
PMCPMC6567562
OpenAlexW2949759002

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.