Levonorgestrel-Releasing Intrauterine Device (LNG-IUD) Insertion: A Safe and Effective Contraceptive Method

The levonorgestrel-releasing intrauterine device (LNG-IUD) insertion procedure, also known as the Mirena procedure, has been confirmed to be a safe and effective contraceptive method for women of childbearing age. With a contraceptive failure rate of less than 1%, this procedure has been shown to be as effective as sterilization surgery.

A recent medical technology reevaluation conducted by the National Evidence-based Healthcare Collaborating Agency (NECA) analyzed 30 studies to assess the safety and efficacy of LNG-IUDs for contraception in women of childbearing potential.

The review results revealed that the LNG-IUD insertion procedure has a number of benefits, including:

• A contraceptive failure rate of less than 1%, similar to sterilization surgery.
• A long-lasting contraceptive effect that can last for 3 to 5 years with a single procedure.
• Minimal adverse reactions, including changes in menstrual patterns, which gradually decrease over time.
• A low rate of LNG-IUD expulsion outside the vagina.
• No negative effects on pregnancy, including infertility, after the IUD is removed.
• No weight gain due to the procedure.

However, some studies suggested a potential link between the procedure and an increased risk of breast cancer and depression, although further research is needed to confirm these findings.

According to Kim Min-jeong, head of the Health and Medical Evaluation and Research Center, “We have clearly confirmed the contraceptive effect of the LNG-IUD, and the adverse reactions related to the procedure can be considered acceptable. However, additional research is needed to confirm the relationship between the procedure and the occurrence of breast cancer and depressive symptoms.”

How LNG-IUD Works

LNG-IUD is a technology that maintains contraception by inserting a contraceptive device that releases levonorgestrel into the uterus of a woman of childbearing age. Levonorgestrel is a synthetic hormone that acts similarly to progesterone, a type of female hormone.

It prevents implantation of a fertilized egg by keeping the uterine lining thin and induces contraception by causing changes in the cervical mucosa and suppressing ovulation.

Uses of LNG-IUD

Originally developed for contraception, LNG-IUD is also used for treating menstrual irregularities, menstrual cramps, and menopausal hormones. Due to its versatility and effectiveness, LNG-IUD has become a popular choice for women seeking a reliable and long-lasting contraceptive method.