These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Are in vitro fertilization pregnancies with early spontaneous reduction high risk?
    Author: Chasen ST, Luo G, Perni SC, Kalish RB.
    Journal: Am J Obstet Gynecol; 2006 Sep; 195(3):814-7. PubMed ID: 16949417.
    Abstract:
    OBJECTIVE: The objective of the study was to determine whether spontaneous reduction in in vitro fertilization pregnancies results in outcomes comparable with in vitro fertilization singleton pregnancies or ongoing twin pregnancies. STUDY DESIGN: Women with in vitro fertilization pregnancies from 2003 to 2005 who had first-trimester ultrasound and delivered in our hospital were identified. Those with documented reduction from dichorionic twins to a single viable fetus at 14 weeks or less were categorized as spontaneous reduction pregnancies and were compared with dichorionic twin and singleton pregnancies without reduction. RESULTS: One hundred sixty-eight singleton, 55 spontaneous reduction, and 86 twin pregnancies were included. Gestational age at delivery was similar in the singleton and spontaneous reduction groups; twins delivered significantly earlier. Spontaneous reduction was associated with lower birth weight than other singleton pregnancies (median 3062 g versus 3425 g; P = .005). The rate of pre-eclampsia was higher in pregnancies with spontaneous reduction, compared with other singleton pregnancies 9.3% versus 2.4%; P = .04). CONCLUSION: Spontaneous reduction of a twin to a singleton pregnancy is associated with prolonged gestation and higher birth weight for the remaining fetus.
    [Abstract] [Full Text] [Related] [New Search]