[Modern noninvasive methods for terminating pregnancy in the 2nd trimester]

Area of Science:

• Obstetrics and Gynecology
• Reproductive Medicine
• Pharmacology

Context:

• Second-trimester pregnancy interruption (13-21 weeks) traditionally uses invasive methods like intra-amniotic NaCl or vaginal prostaglandins, associated with severe complications.
• Prostaglandin analogue (P.G.) administration offers a safer alternative but can cause gastrointestinal side effects and prolonged action, particularly in nulliparous women.

Purpose:

• To evaluate a novel, non-invasive technique for second-trimester pregnancy interruption.
• To assess the efficacy and safety of combining an antiprogestin (Ru 486) with prostaglandin E2 (PGE2) for medical abortion.

Summary:

• The proposed non-invasive method involves oral administration of an antiprogestin (Ru 486) followed 24 hours later by intracervical PGE2 (tablet or gel).
• This combined approach demonstrated highly effective results, reducing pregnancy interruption time by over 50% (average 5-10 hours).
• The technique significantly minimized side effects and complications, leading to a reduced hospital stay.

Impact:

• Offers a safer and more efficient alternative to existing invasive and less effective methods for second-trimester pregnancy termination.
• Potential to improve patient outcomes and reduce healthcare resource utilization in managing medical abortions.
• Highlights the therapeutic potential of combining antiprogestins with prostaglandins in reproductive medicine.