Cited by 464Reproductive System and PregnancyPreterm Birth and ChorioamnionitisReproductive tract infections research

The role of infection in miscarriage

Open access
Giakoumelou, Sevi, Wheelhouse, Nick, Cuschieri, Kate, Entrican, Gary, Howie, Sarah E.M., Horne, Andrew W.·2016·Human Reproduction Update

Abstract

BACKGROUND: Miscarriage is the spontaneous loss of a pregnancy before 12 weeks (early miscarriage) or from 12 to 24 weeks (late miscarriage) of gestation. Miscarriage occurs in one in five pregnancies and can have considerable physiological and psychological implications for the patient. It is also associated with significant health care costs. There is evidence that potentially preventable infections may account for up to 15% of early miscarriages and up to 66% of late miscarriages. However, the provision of associated screening and management algorithms is inconsistent for newly pregnant women. Here, we review recent population-based studies on infections that have been shown to be associated with miscarriage. METHODS: Our aim was to examine where the current scientific focus lies with regards to the role of infection in miscarriage. Papers dating from June 2009 with key words 'miscarriage' and 'infection' or 'infections' were identified in PubMed (292 and 327 papers, respectively, on 2 June 2014). Relevant human studies (meta-analyses, case-control studies, cohort studies or case series) were included. Single case reports were excluded. The studies were scored based on the Newcastle - Ottawa Quality Assessment Scale. RESULTS: The association of systemic infections with malaria, brucellosis, cytomegalovirus and human immunodeficiency virus, dengue fever, influenza virus and of vaginal infection with bacterial vaginosis, with increased risk of miscarriage has been demonstrated. Q fever, adeno-associated virus, Bocavirus, Hepatitis C and Mycoplasma genitalium infections do not appear to affect pregnancy outcome. The effects of Chlamydia trachomatis, Toxoplasma gondii, human papillomavirus, herpes simplex virus, parvovirus B19, Hepatitis B and polyomavirus BK infections remain controversial, as some studies indicate increased miscarriage risk and others show no increased risk. The latest data on rubella and syphilis indicate increased antenatal screening worldwide and a decrease in the frequency of their reported associations with pregnancy failure. Though various pathogens have been associated with miscarriage, the mechanism(s) of infection-induced miscarriage are not yet fully elucidated. CONCLUSIONS: Further research is required to clarify whether certain infections do increase miscarriage risk and whether screening of newly pregnant women for treatable infections would improve reproductive outcomes.

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Crossref · 10.1093/humupd/dmv041

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  • High stress is associated with miscarriage risk (aOR 1.46; 95% CI 1.16-1.77).

    “Our review of the evidence also found that high stress is associated with miscarriage risk (aOR 1·46; 95% CI 1·161·77; Table 6) 66,71,73-77”

    From Miscarriage matters: the epidemiological, physical, psychological, and economic costs of early pregnancy loss (2021) · cites this paper as [73]

    The Aetiology of miscarriage section says that feelings of stress have been associated with significantly higher miscarriage rates. It does not specify a high-stress category or report the claimed adjusted odds ratio of 1.46 (95% CI 1.16–1.77). (LLM, conf=0.90)

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Research works printed but not linked: 4

  1. Banatvala JE, Brown DWG. Rubella. Lancet 2004;363:1127 -1137.
  2. Dybul M, Fauci A, Bartlett J. Guidelines for using antiretroviral agents among HIV-infected adults and adolescent. Ann Intern Med 2002;137:381 -433.
  3. Kova ´cs L, Nagy E, Berbik I, Me ´sza ´ros G, Dea ´k J, Nya ´ri T. The frequency and the role of Chlamydia trachomatis infection in premature labor. Int J Gynaecol Obstet 1998; 62:47 -54.
  4. Maurin M, Raoult D. Q fever. Clin Microbiol Rev 1999;12:518-553.

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Authors
Giakoumelou, S., Wheelhouse, N., Cuschieri, K., Entrican, G., Howie, S. E. M., & Horne, A. W.
Affiliations
  • MRC Centre for Reproductive Health (GB)
  • Moredun Research Institute (GB)
  • Edinburgh Royal Infirmary (GB)
  • Roslin Institute (GB)
  • Centre for Inflammation Research (GB)
Corresponding author
Horne, Andrew W.
Venue
Human Reproduction Update
Published
2015-09-19
Volume
22
Issue
1
Pages
116-133
ISSN
  • 1355-4786 (ISSN-L)
  • 1460-2369
OpenAlex
W1942393720
Cited by
464
References
208
Citations by year
2026: 28 · 2025: 40 · 2024: 56 · 2023: 46 · 2022: 63 · 2021: 56 · 2020: 56 · 2019: 31 · 2018: 38 · 2017: 23 · 2016: 26 · 2015: 1
FWCI
2.72
Type
journal article
Language
en
Open access
Licence
other-oa
Locations
  • Human Reproduction Update (publishedVersion, other-oa)
  • PubMed (publishedVersion)
  • Edinburgh Napier Research Repository (Edinburgh Napier University) (submittedVersion, cc-by-nc)
  • Research Output (Edinburgh Napier University) (submittedVersion)
  • HighWire Press Open Archive (submittedVersion)
  • Edinburgh Research Explorer (University of Edinburgh) (submittedVersion, other-oa)
Funders
  • MRC Centre for Reproductive Health and Tommy's Charity
  • Biotechnology and Biological Sciences Research Council (BBSRC)/Zoetis Industrial Partnership
  • Scottish Government Rural and Environment Science and Analytical Services Division (RESAS)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Reproductive System and Pregnancy
  • Health Sciences › Medicine › Epidemiology › Preterm Birth and Chorioamnionitis
  • Life Sciences › Immunology and Microbiology › Microbiology › Reproductive tract infections research
Keywords
miscarriage, infection, malaria, brucellosis, cytomegalovirus, HIV, dengue, influenza, bacterial vaginosis, Q fever, adeno-associated virus, bocavirus, hepatitis C, Mycoplasma genitalium, Chlamydia trachomatis, Toxoplasma gondii, human papillomavirus, herpes simplex virus, parvovirus B19, hepatitis B, rubella, syphilis, prenatal screening
MeSH terms
Abortion, Spontaneous, Bacterial Infections, Female, Humans, Pregnancy, Pregnancy Complications, Infectious, Pregnancy Outcome, Prenatal Diagnosis, Protozoan Infections, Virus Diseases, Cohort Studies, Case-Control Studies

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