Cited by 412Maternal and fetal healthcarePregnancy and preeclampsia studiesMaternal and Perinatal Health Interventions

Placental abruption and adverse perinatal outcomes

Ananth, Cande V.·1999·JAMA

Abstract

CONTEXT: Pregnancies complicated by abruption result in increased frequency of perinatal death and decreased fetal size and gestational duration, yet the extent of placental separation and its effect on these adverse outcomes is unknown. OBJECTIVE: To assess the contribution of placental abruption and extent of placental separation to stillbirth, preterm delivery, and fetal growth restriction. DESIGN: Hospital-based, retrospective cohort study. SETTING: Mount Sinai Hospital, New York City, NY. PARTICIPANTS: A total of 53,371 pregnancies occurring in 40,789 women who were delivered of singleton births between 1986 and 1996. MAIN OUTCOME MEASURES: Risks and relative risks for stillbirth (>20 weeks), preterm delivery (<37 weeks), and fetal growth restriction (birth weight below 10th percentile for gestational age) in relation to abruption. RESULTS: The incidence of abruption was 1 % (n = 530). Abruption was associated with an 8.9-fold (95% confidence interval [CI], 6.0-13.0) adjusted relative risk (aRR) of stillbirth. Preterm birth proportions among women with and without abruption were 39.6% and 9.1 %, respectively, yielding an aRR of 3.9 (95% CI, 3.5-4.4). In the abruption group, 14.3% of neonates were growth restricted, compared with 8.1 % among all other births (aRR, 2.0; 95% CI, 1.5-2.4). Extent of placental separation had a profound effect on stillbirth (aRR for 75% separation, 31.5; 95% CI, 17.0-58.4), although evident only among those with at least 50% separation. However, the risk of preterm delivery was substantially increased even for mild abruptions (aRR for 25% separation, 5.5; 95% CI, 4.2-7.3). CONCLUSIONS: In this cohort, placental abruption had a profound impact on stillbirth, preterm delivery, and fetal growth restriction. The risk of stillbirth was dramatically increased for severe placental separation, but preterm delivery was common even among women with lesser degrees of placental separation.

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Crossref · 10.1001/jama.282.17.1646

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Authors
Ananth, C. V.
Affiliations
University of Medicine and Dentistry of New Jersey (US)
Corresponding author
Ananth, Cande V.
Venue
JAMA
Published
1999-11-03
Volume
282
Issue
17
Pages
1646
ISSN
  • 0002-9955 (ISSN-L)
  • 0098-7484
OpenAlex
W2124588032
Cited by
412
References
18
Citations by year
2026: 7 · 2025: 10 · 2024: 18 · 2023: 12 · 2022: 22 · 2021: 16 · 2020: 16 · 2019: 18 · 2018: 26 · 2017: 17 · 2016: 22 · 2015: 19 · 2014: 24 · 2013: 11 · 2012: 18
FWCI
6.35
Type
journal article
Language
en
Open access
closed
Locations
  • JAMA (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Maternal and fetal healthcare
  • Health Sciences › Medicine › Obstetrics and Gynecology › Pregnancy and preeclampsia studies
  • Health Sciences › Medicine › Obstetrics and Gynecology › Maternal and Perinatal Health Interventions
Keywords
placental abruption, stillbirth, preterm birth, fetal growth restriction, perinatal complications, singleton pregnancy, pregnancy complications
MeSH terms
Abruptio Placentae, Adult, Female, Fetal Death, Fetal Growth Retardation, Humans, Infant, Low Birth Weight, Infant, Newborn, Infant, Premature, Obstetric Labor, Premature, Pregnancy, Pregnancy Outcome, Regression Analysis, Retrospective Studies, Risk, Multivariate Analysis

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