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Related Experiment Videos

Expulsions following 1000 GyneFix insertions.

J Dennis1, A Webb, M Kishen

  • 1Abacus Centres for Contraception and Reproductive Health, North Mersey Community NHS Trust, Liverpool, UK.

The Journal of Family Planning and Reproductive Health Care
|November 30, 2002
PubMed
Summary

The GyneFix intrauterine device expulsion rate in clinical use is 7.6%, higher than in trials. Early expulsion may link to insertion technique, while late expulsion reasons remain unclear.

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Area of Science:

  • Reproductive Health
  • Contraception
  • Gynecology

Background:

  • The GyneFix intrauterine device (IUD) has been utilized in family planning services since 1997.
  • Clinical trials suggest a low expulsion rate for the GyneFix IUD.

Purpose of the Study:

  • To determine the expulsion rates of the GyneFix IUD in routine clinical practice.
  • To investigate potential factors contributing to IUD expulsion.

Main Methods:

  • Retrospective analysis of 1000 GyneFix IUD insertions.
  • Inclusion of client parity and clinician experience as variables.
  • Opportunistic client consultations were conducted.

Main Results:

  • The overall expulsion rate was 7.6%, exceeding rates reported in clinical trials.
  • Most expulsions (4.7%) occurred within 3 months of insertion, potentially linked to insertion technique.
  • Late expulsions occurred up to 28 months post-insertion; clinician experience correlated with lower late expulsion rates.
  • Four unplanned pregnancies resulted from unnoticed expulsions.

Conclusions:

  • The GyneFix IUD expulsion rate in this service is higher than previously reported.
  • Early expulsions may be associated with suboptimal anchoring of the device.
  • Further investigation into the causes of late expulsions is warranted.
  • Recommendations include patient education on device checking and confirmation of unnoticed expulsions via imaging.

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