Preterm delivery: A risk factor for retained placenta

Roberto Romero, Yu Chiung Hsu, Apostolos P. Athanassiadis, Zion Hagay, Cecilia Avila, Jose Nores, Alistair Roberts, Moshe Mazor, John C. Hobbins

Research output: Contribution to journalArticlepeer-review

51 Scopus citations


The purpose of this study was to determine whether preterm delivery, with and without intraamniotic infection, is a risk factor for retained placenta. This complication occurred more frequently in women with preterm vaginal delivery than in women with term vaginal delivery (9.1% [ 21 231] vs 1.1% [ 6 561]; p < 0.00001; odds ratio = 9.25). There was no significant difference in the prevalence of retained placenta between women with preterm labor and intact membranes and those with preterm premature rupture of membranes (8% [ 10 125] vs 10.4% [ 11 106]; p ≥ 0.05). A positive amniotic fluid culture or clinical chorioamnionitis was not associated with a higher incidence of retained placenta. This study indicates that preterm delivery is associated with an increased risk of complications of the third stage of labor.

Original languageEnglish
Pages (from-to)823-825
Number of pages3
JournalAmerican Journal of Obstetrics and Gynecology
Issue number3
StatePublished - 1 Jan 1990
Externally publishedYes


  • Placenta
  • chorioamnionitis
  • intraamniotic infection
  • parturition
  • prematurity
  • preterm labor
  • retained placenta
  • third stage of labor

ASJC Scopus subject areas

  • Obstetrics and Gynecology


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