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Neonatal Encephalopathy with Group B Streptococcal Disease Worldwide: Systematic Review, Investigator Group Datasets, and Meta-analysis

Research output: Contribution to journalReview article

  • Cally J. Tann
  • Kathryn A. Martinello
  • Samantha Sadoo
  • Joy E. Lawn
  • Anna C. Seale
  • Maira Vega-Poblete
  • Neal J. Russell
  • Carol J. Baker
  • Linda Bartlett
  • Clare Cutland
  • Michael G. Gravett
  • Margaret Ip
  • Kirsty Le Doare
  • Shabir A. Madhi
  • Craig E. Rubens
  • Samir K. Saha
  • Stephanie Schrag
  • Ajoke Sobanjo-Ter Meulen
  • Johan Vekemans
  • Paul T. Heath
  • for the GBS Neonatal Encephalopathy Investigator Group
Original languageEnglish
Article numbercix662
Pages (from-to)S173-S189
Number of pages17
JournalClinical Infectious Diseases
Volume65
Issue numbersuppl 2
Early online date6 Nov 2017
DOIs
DateAccepted/In press - 18 Oct 2016
DateE-pub ahead of print - 6 Nov 2017
DatePublished (current) - 15 Nov 2017

Abstract

Neonatal encephalopathy (NE) is a leading cause of child mortality and longer-term impairment. Infection can sensitize the newborn brain to injury; however, the role of group B streptococcal (GBS) disease has not been reviewed. This paper is the ninth in an 11-article series estimating the burden of GBS disease; here we aim to assess the proportion of GBS in NE cases. We conducted systematic literature reviews (PubMed/Medline, Embase, Latin American and Caribbean Health Sciences Literature [LILACS], World Health Organization Library Information System [WHOLIS], and Scopus) and sought unpublished data from investigator groups reporting GBS-associated NE. Meta-analyses estimated the proportion of GBS disease in NE and mortality risk. UK population-level data estimated the incidence of GBS-associated NE. Four published and 25 unpublished datasets were identified from 13 countries (N = 10436). The proportion of NE associated with GBS was 0.58% (95% confidence interval [CI], 0.18%-.98%). Mortality was significantly increased in GBS-associated NE vs NE alone (risk ratio, 2.07 [95% CI, 1.47-2.91]). This equates to a UK incidence of GBS-associated NE of 0.019 per 1000 live births. The consistent increased proportion of GBS disease in NE and significant increased risk of mortality provides evidence that GBS infection contributes to NE. Increased information regarding this and other organisms is important to inform interventions, especially in low- and middle-resource contexts.

    Research areas

  • Group B Streptococcus, hypoxic-ischemic encephalopathy, neonatal encephalopathy, newborn, therapeutic hypothermia.

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    Rights statement: This is the final published version of the article (version of record). It first appeared online via Oxford University Press at https://academic.oup.com/cid/article/65/suppl_2/S173/4589592 . Please refer to any applicable terms of use of the publisher.

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