Early vs Interval Postpartum Intrauterine Device Placement: A Randomized Clinical Trial

Area of Science:

• Reproductive Health
• Contraception Research
• Clinical Trials

Background:

• The early postpartum period (2-4 weeks) offers a convenient window for intrauterine device (IUD) insertion, potentially aligning with routine postpartum visits.
• Current practice often involves IUD placement at the standard 6-week postpartum check-up.

Purpose of the Study:

• To compare the expulsion rates of IUDs placed in the early postpartum period (14-28 days) versus the standard interval (42-56 days).
• To evaluate the noninferiority of early IUD placement regarding complete expulsion by 6 months postpartum.

Main Methods:

• A randomized noninferiority trial involving 404 participants who underwent either early (14-28 days) or interval (42-56 days) postpartum IUD placement.
• Participants were followed for 6 months postpartum, with IUD presence and position confirmed via transvaginal ultrasonography at follow-up.
• Primary outcome was complete IUD expulsion; secondary outcomes included partial expulsion, removal, infection, satisfaction, perforation, pregnancy, and IUD use.

Main Results:

• Complete expulsion rates by 6 months postpartum were 2.0% for early placement and 0% for interval placement (noninferior).
• Partial expulsion rates were 9.4% for early placement and 7.6% for interval placement.
• IUD use at 6 months postpartum was similar between the early (69.5%) and interval (67.2%) placement groups.

Conclusions:

• Early postpartum IUD placement (2-4 weeks) is noninferior to interval placement (6-8 weeks) for complete expulsion.
• While not statistically noninferior for partial expulsion, the findings support informed decision-making regarding IUD timing.
• Understanding expulsion risks at different postpartum intervals is crucial for patient-clinician counseling.