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冷凍と新鮮の単一ブラストシストの移植:多センター,ランダム化制御試験
Daimin Wei1, Jia-Yin Liu2, Yun Sun3
1Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China; The Key Laboratory of Reproductive Endocrinology of Ministry of Education, Jinan, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China.
Lancet (London, England)
|March 5, 2019
まとめ
凍結された単一ブラストシスト移植は,インビトロ受精を受けた女性の新鮮な移植と比較して,単一ブラストシストの生育率を大幅に増加させます. 妊娠前出血症のリスクを理解するためにさらなる研究が必要である.
科学分野:
- 生殖医学
- 不妊 症 の 治療
- 胚科
背景:
- 選択的な単一胚移植 (eSET) は推奨されているが,妊娠率の低下に関する懸念に直面している.
- 延期移転のための拡張胚培養と選択的な胚冷凍保存は,eSETの結果を向上させる可能性があります.
研究 の 目的:
- 選択的に冷凍された単一ブラストシストの移植と新鮮な単一ブラストシストの移植の間のシングルトン生育率を比較する.
主な方法:
- 1650人の女性を対象とした多センター,無盲,ランダム化制御試験です.
- 参加者はランダムに新鮮または冷凍の単一ブラストシストの移植に割り当てられました.
- 主なアウトカムは,治療の意図によって分析されたシングルトン生育率でした.
主要な成果:
- 凍結した単一ブラストシスト移植は,新鮮な単一ブラストシスト移植 (40%) に比べて,より高い単一生児出生率をもたらしました.
- 卵巣過刺激症候群,妊娠中絶,産科合併症,新生児の罹患率において有意な差異は認められなかった.
- 凍結した単一ブラストシスト移植群では,妊娠前出血症のリスクが高かった (3. 1% 対 1. 0%).
結論:
- 選択的に冷凍された単一ブラストシスト移植は,定期的な周期と良好な予後を持つ女性において,単一ブラストシストの生育率を改善します.
- 凍結胚移植後の妊娠前出血症のリスクが高いため,さらなる調査が必要である.
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