Intrauterine devices in early pregnancy: Findings on ultrasound and clinical outcomes

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14 Scopus citations


Objective: The objective of this study was to describe ultrasound findings, clinical symptoms, and outcomes of first-trimester pregnancies with intrauterine devices (IUDs). Study Design: This was a retrospective review of 42 women with history of IUD placement and positive serum human chorionic gonadotropin in the first trimester. Results: There were 31 intrauterine pregnancies (IUPs), 3 ectopic pregnancies, and 8 pregnancies of unknown location. Of 36 IUDs visualized, 15 were normally positioned and 21 malpositioned. Of 31 IUPs, 8 IUDs were within the endometrium, 17 were malpositioned, and 6 were not seen. Indications included bleeding (14 of 31), pain (12 of 31), and missing strings (5 of 31); 11 had no symptoms. Of 26 IUPs with known pregnancy outcomes, 20 were term deliveries and 6 had failed pregnancies of 20 weeks or less. Conclusion: More than half of IUDs identified in the first trimester were malpositioned. IUP was 3 times as likely with a malpositioned or missing IUD. Three quarters of the IUPs with known outcomes had term deliveries. Symptoms were not predictive of IUD malposition.

Original languageEnglish (US)
Pages (from-to)427.e1-427.e6
JournalAmerican journal of obstetrics and gynecology
Issue number5
StatePublished - May 2011


  • complications of intrauterine devices
  • intrauterine device
  • intrauterine device in pregnancy

ASJC Scopus subject areas

  • Obstetrics and Gynecology


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