Severe Maternal Sepsis in the UK, 2011-2012: A National Case-Control Study: e1001672

Background In light of increasing rates and severity of sepsis worldwide, this study aimed to estimate the incidence of, and describe the causative organisms, sources of infection, and risk factors for, severe maternal sepsis in the UK. Methods and Findings A prospective case-control study included...

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Published in:PLoS medicine 2014-07, Vol.11 (7)
Main Authors: Acosta, Colleen D, Kurinczuk, Jennifer J, Lucas, D Nuala, Tuffnell, Derek J, Sellers, Susan, Knight, Marian, System, Kingdom ObstetricSurveillance
Format: Article
Language:English
Subjects:
Antibiotics
Antigens
Cesarean section
Childbirth & labor
Deaths
E coli
Immune system
Infections
Obstetrics
Pregnancy
Risk factors
Sepsis
Studies
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container_issue 7
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container_title PLoS medicine
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creator Acosta, Colleen D
Kurinczuk, Jennifer J
Lucas, D Nuala
Tuffnell, Derek J
Sellers, Susan
Knight, Marian
System, Kingdom ObstetricSurveillance
description Background In light of increasing rates and severity of sepsis worldwide, this study aimed to estimate the incidence of, and describe the causative organisms, sources of infection, and risk factors for, severe maternal sepsis in the UK. Methods and Findings A prospective case-control study included 365 confirmed cases of severe maternal sepsis and 757 controls from all UK obstetrician-led maternity units from June 1, 2011, to May 31, 2012. Incidence of severe sepsis was 4.7 (95% CI 4.2-5.2) per 10,000 maternities; 71 (19.5%) women developed septic shock; and five (1.4%) women died. Genital tract infection (31.0%) and the organism Escherichia coli (21.1%) were most common. Women had significantly increased adjusted odds ratios (aORs) of severe sepsis if they were black or other ethnic minority (aOR = 1.82; 95% CI 1.82-2.51), were primiparous (aOR = 1.60; 95% CI 1.17-2.20), had a pre-existing medical problem (aOR = 1.40; 95% CI 1.01-1.94), had febrile illness or were taking antibiotics in the 2 wk prior to presentation (aOR = 12.07; 95% CI 8.11-17.97), or had an operative vaginal delivery (aOR = 2.49; 95% CI 1.32-4.70), pre-labour cesarean (aOR = 3.83; 95% CI 2.24-6.56), or cesarean after labour onset (aOR = 8.06; 95% CI 4.65-13.97). Median time between delivery and sepsis was 3 d (interquartile range = 1-7 d). Multiple pregnancy (aOR = 5.75; 95% CI 1.54-21.45) and infection with group A streptococcus (aOR = 4.84; 2.17-10.78) were associated with progression to septic shock; for 16 (50%) women with a group A streptococcal infection there was
doi_str_mv 10.1371/journal.pmed.1001672
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Methods and Findings A prospective case-control study included 365 confirmed cases of severe maternal sepsis and 757 controls from all UK obstetrician-led maternity units from June 1, 2011, to May 31, 2012. Incidence of severe sepsis was 4.7 (95% CI 4.2-5.2) per 10,000 maternities; 71 (19.5%) women developed septic shock; and five (1.4%) women died. Genital tract infection (31.0%) and the organism Escherichia coli (21.1%) were most common. Women had significantly increased adjusted odds ratios (aORs) of severe sepsis if they were black or other ethnic minority (aOR = 1.82; 95% CI 1.82-2.51), were primiparous (aOR = 1.60; 95% CI 1.17-2.20), had a pre-existing medical problem (aOR = 1.40; 95% CI 1.01-1.94), had febrile illness or were taking antibiotics in the 2 wk prior to presentation (aOR = 12.07; 95% CI 8.11-17.97), or had an operative vaginal delivery (aOR = 2.49; 95% CI 1.32-4.70), pre-labour cesarean (aOR = 3.83; 95% CI 2.24-6.56), or cesarean after labour onset (aOR = 8.06; 95% CI 4.65-13.97). Median time between delivery and sepsis was 3 d (interquartile range = 1-7 d). Multiple pregnancy (aOR = 5.75; 95% CI 1.54-21.45) and infection with group A streptococcus (aOR = 4.84; 2.17-10.78) were associated with progression to septic shock; for 16 (50%) women with a group A streptococcal infection there was &lt;2 h--and for 24 (75%) women, &lt;9 h--between the first sign of systemic inflammatory response syndrome and a diagnosis of severe sepsis. A limitation of this study was the proportion of women with sepsis without an identified organism or infection source (16.4%). Conclusions For each maternal sepsis death, approximately 50 women have life-threatening morbidity from sepsis. Follow-up to ensure infection is eradicated is important. The rapid progression to severe sepsis highlights the importance of following the international Surviving Sepsis Campaign guideline of early administration of high-dose intravenous antibiotics within 1 h of admission to hospital for anyone with suspected sepsis. Signs of severe sepsis in peripartum women, particularly with confirmed or suspected group A streptococcal infection, should be regarded as an obstetric emergency. Please see later in the article for the Editors' Summary</description><identifier>ISSN: 1549-1277</identifier><identifier>EISSN: 1549-1676</identifier><identifier>DOI: 10.1371/journal.pmed.1001672</identifier><language>eng</language><publisher>San Francisco: Public Library of Science</publisher><subject>Antibiotics ; Antigens ; Cesarean section ; Childbirth &amp; labor ; Deaths ; E coli ; Immune system ; Infections ; Obstetrics ; Pregnancy ; Risk factors ; Sepsis ; Studies</subject><ispartof>PLoS medicine, 2014-07, Vol.11 (7)</ispartof><rights>2014 Public Library of Science. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited: Acosta CD, Kurinczuk JJ, Lucas DN, Tuffnell DJ, Sellers S, Knight M, et al. (2014) Severe Maternal Sepsis in the UK, 2011-2012: A National Case-Control Study. PLoS Med 11(7): e1001672. doi:10.1371/journal.pmed.1001672</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.proquest.com/docview/1685377217/fulltextPDF?pq-origsite=primo$$EPDF$$P50$$Gproquest$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/1685377217?pq-origsite=primo$$EHTML$$P50$$Gproquest$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,25753,27924,27925,37012,44590,75126</link.rule.ids></links><search><creatorcontrib>Acosta, Colleen D</creatorcontrib><creatorcontrib>Kurinczuk, Jennifer J</creatorcontrib><creatorcontrib>Lucas, D Nuala</creatorcontrib><creatorcontrib>Tuffnell, Derek J</creatorcontrib><creatorcontrib>Sellers, Susan</creatorcontrib><creatorcontrib>Knight, Marian</creatorcontrib><creatorcontrib>System, Kingdom ObstetricSurveillance</creatorcontrib><title>Severe Maternal Sepsis in the UK, 2011-2012: A National Case-Control Study: e1001672</title><title>PLoS medicine</title><description>Background In light of increasing rates and severity of sepsis worldwide, this study aimed to estimate the incidence of, and describe the causative organisms, sources of infection, and risk factors for, severe maternal sepsis in the UK. Methods and Findings A prospective case-control study included 365 confirmed cases of severe maternal sepsis and 757 controls from all UK obstetrician-led maternity units from June 1, 2011, to May 31, 2012. Incidence of severe sepsis was 4.7 (95% CI 4.2-5.2) per 10,000 maternities; 71 (19.5%) women developed septic shock; and five (1.4%) women died. Genital tract infection (31.0%) and the organism Escherichia coli (21.1%) were most common. Women had significantly increased adjusted odds ratios (aORs) of severe sepsis if they were black or other ethnic minority (aOR = 1.82; 95% CI 1.82-2.51), were primiparous (aOR = 1.60; 95% CI 1.17-2.20), had a pre-existing medical problem (aOR = 1.40; 95% CI 1.01-1.94), had febrile illness or were taking antibiotics in the 2 wk prior to presentation (aOR = 12.07; 95% CI 8.11-17.97), or had an operative vaginal delivery (aOR = 2.49; 95% CI 1.32-4.70), pre-labour cesarean (aOR = 3.83; 95% CI 2.24-6.56), or cesarean after labour onset (aOR = 8.06; 95% CI 4.65-13.97). Median time between delivery and sepsis was 3 d (interquartile range = 1-7 d). Multiple pregnancy (aOR = 5.75; 95% CI 1.54-21.45) and infection with group A streptococcus (aOR = 4.84; 2.17-10.78) were associated with progression to septic shock; for 16 (50%) women with a group A streptococcal infection there was &lt;2 h--and for 24 (75%) women, &lt;9 h--between the first sign of systemic inflammatory response syndrome and a diagnosis of severe sepsis. A limitation of this study was the proportion of women with sepsis without an identified organism or infection source (16.4%). Conclusions For each maternal sepsis death, approximately 50 women have life-threatening morbidity from sepsis. Follow-up to ensure infection is eradicated is important. The rapid progression to severe sepsis highlights the importance of following the international Surviving Sepsis Campaign guideline of early administration of high-dose intravenous antibiotics within 1 h of admission to hospital for anyone with suspected sepsis. Signs of severe sepsis in peripartum women, particularly with confirmed or suspected group A streptococcal infection, should be regarded as an obstetric emergency. 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Kurinczuk, Jennifer J ; Lucas, D Nuala ; Tuffnell, Derek J ; Sellers, Susan ; Knight, Marian ; System, Kingdom ObstetricSurveillance</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-proquest_journals_16853772173</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Antibiotics</topic><topic>Antigens</topic><topic>Cesarean section</topic><topic>Childbirth &amp; labor</topic><topic>Deaths</topic><topic>E coli</topic><topic>Immune system</topic><topic>Infections</topic><topic>Obstetrics</topic><topic>Pregnancy</topic><topic>Risk factors</topic><topic>Sepsis</topic><topic>Studies</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Acosta, Colleen D</creatorcontrib><creatorcontrib>Kurinczuk, Jennifer J</creatorcontrib><creatorcontrib>Lucas, D Nuala</creatorcontrib><creatorcontrib>Tuffnell, Derek J</creatorcontrib><creatorcontrib>Sellers, Susan</creatorcontrib><creatorcontrib>Knight, Marian</creatorcontrib><creatorcontrib>System, Kingdom ObstetricSurveillance</creatorcontrib><collection>ProQuest Central (Corporate)</collection><collection>Neurosciences Abstracts</collection><collection>ProQuest Health and Medical</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central</collection><collection>ProQuest Central Essentials</collection><collection>AUTh Library subscriptions: ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Health &amp; 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Methods and Findings A prospective case-control study included 365 confirmed cases of severe maternal sepsis and 757 controls from all UK obstetrician-led maternity units from June 1, 2011, to May 31, 2012. Incidence of severe sepsis was 4.7 (95% CI 4.2-5.2) per 10,000 maternities; 71 (19.5%) women developed septic shock; and five (1.4%) women died. Genital tract infection (31.0%) and the organism Escherichia coli (21.1%) were most common. Women had significantly increased adjusted odds ratios (aORs) of severe sepsis if they were black or other ethnic minority (aOR = 1.82; 95% CI 1.82-2.51), were primiparous (aOR = 1.60; 95% CI 1.17-2.20), had a pre-existing medical problem (aOR = 1.40; 95% CI 1.01-1.94), had febrile illness or were taking antibiotics in the 2 wk prior to presentation (aOR = 12.07; 95% CI 8.11-17.97), or had an operative vaginal delivery (aOR = 2.49; 95% CI 1.32-4.70), pre-labour cesarean (aOR = 3.83; 95% CI 2.24-6.56), or cesarean after labour onset (aOR = 8.06; 95% CI 4.65-13.97). Median time between delivery and sepsis was 3 d (interquartile range = 1-7 d). Multiple pregnancy (aOR = 5.75; 95% CI 1.54-21.45) and infection with group A streptococcus (aOR = 4.84; 2.17-10.78) were associated with progression to septic shock; for 16 (50%) women with a group A streptococcal infection there was &lt;2 h--and for 24 (75%) women, &lt;9 h--between the first sign of systemic inflammatory response syndrome and a diagnosis of severe sepsis. A limitation of this study was the proportion of women with sepsis without an identified organism or infection source (16.4%). Conclusions For each maternal sepsis death, approximately 50 women have life-threatening morbidity from sepsis. Follow-up to ensure infection is eradicated is important. The rapid progression to severe sepsis highlights the importance of following the international Surviving Sepsis Campaign guideline of early administration of high-dose intravenous antibiotics within 1 h of admission to hospital for anyone with suspected sepsis. Signs of severe sepsis in peripartum women, particularly with confirmed or suspected group A streptococcal infection, should be regarded as an obstetric emergency. Please see later in the article for the Editors' Summary</abstract><cop>San Francisco</cop><pub>Public Library of Science</pub><doi>10.1371/journal.pmed.1001672</doi><oa>free_for_read</oa></addata></record>
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subjects Antibiotics
Antigens
Cesarean section
Childbirth & labor
Deaths
E coli
Immune system
Infections
Obstetrics
Pregnancy
Risk factors
Sepsis
Studies
title Severe Maternal Sepsis in the UK, 2011-2012: A National Case-Control Study: e1001672
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