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[Levonorgestrel-releasing subcutaneous implants. First year's experience].

R Aznar Ramos1, R Lara Ricalde, M Lozano Baldera

  • 1Instituto Nacional de Perinatología, México, D.F.

Ginecologia Y Obstetricia De Mexico
|January 1, 1991
PubMed
Summary
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Levonorgestrel implants are highly effective contraceptives for Mexican women, with no pregnancies observed in over 2,300 months. Common side effects include menstrual changes, but the implant offers a high continuation rate for family planning.

Area of Science:

  • Reproductive Health
  • Contraception
  • Pharmacology

Context:

  • Multicentric study conducted in Mexico evaluating subdermal implants.
  • Focus on Mexican women utilizing the Mexican Institute of Social Security (IMSS) healthcare system.
  • Assessment of a specific levonorgestrel-releasing subdermal implant.

Purpose:

  • To determine the contraceptive efficacy of levonorgestrel subdermal implants.
  • To identify and quantify the side effects associated with these implants.
  • To evaluate patient continuation rates and compare them with other temporary contraceptive methods.

Summary:

  • Analysis of 246 women over one year demonstrated high contraceptive efficacy with zero pregnancies across 2326 observation months.
  • Reported side effects included menstrual disorders (34.8%), implantation site soreness (3.6%), headache (13.4%), and gastrointestinal/neurological symptoms (11.6%).

Related Experiment Videos

  • Primary reasons for implant removal were menstrual cycle alterations (7.3%) and site soreness (3.5%), with a one-year continuation rate of 84.3%.

    • Impact:

    • Levonorgestrel implants represent a highly efficacious and viable option for family planning in Mexico.
    • The study indicates a higher continuation rate compared to other temporary contraceptive methods used within the institution.
    • Findings support the consideration of these implants as an additional choice in reproductive health services.