同様の結果,異なるタイミング:IVFにおけるルテアル対葉片刺激
Barbara Lawrenz1, Sara Peralta2, Erkan Kalafat3
1ART Fertility Clinic, Royal Marina Village, B22-23, Abu Dhabi, UAE; Reproductive Unit, UZ Ghent, Ghent, Belgium.
Fertility and sterility
|September 4, 2025
まとめ
卵巣刺激は,卵泡期と比較して,胚のプロイド性や品質に悪影響を及ぼさない. この方法は不妊治療の時間制約に直面しているカップルに柔軟性を提供します.
科学分野:
- 生殖内分泌学
- 助産生殖技術 (ART)
- 胚科
背景:
- 卵巣刺激は 助産生殖技術の基石です
- 卵巣刺激開始のタイミング (卵泡と葉の相) は,結果に影響を与える可能性があります.
- 胚の発達に対する 葉期刺激の影響を理解することは 妊娠不妊治療の最適化に不可欠です
研究 の 目的:
- 主要なIVFアウトカムにおける卵巣刺激と卵泡刺激の効果を比較する.
- 具体的には,胚数,胚性状態,および全体的な胚質への影響を評価する.
- 葉期刺激は,従来の卵泡期刺激と比較して利点または欠点があるかどうかを判断する.
主な方法:
- 3524例の卵泡相および552例の卵巣相刺激サイクルを分析したレトロスペクティブコホート研究.
- 年齢,BMI,AMHなどの混同変数を制御するために,傾向スコアマッチング (2:1比) を採用した.
- 1年以内に乳房と卵泡の両方のサイクルを受けた147人の女性をペア分析した.
主要な成果:
- ルテアル相刺激サイクルは著しく長く,高濃度のゴナドトロピンが必要でした.
- 調整後,成熟した卵細胞数,総芽細胞数,生検された芽細胞数,またはユープロイド芽細胞数において,重要な差異は認められなかった.
- 胚質の分布 (上位,良好,均等,劣等) は,葉期と卵泡期刺激群の間で統計的に有意な変化を示さなかった.
結論:
- 卵巣刺激を芽期に開始することは,胚のプロイディ性や品質に悪影響を及ぼさない.
- ルテアル相刺激は,特に時間制約のある患者にとって貴重な代替手段です.
- このアプローチは生殖能力を損なうことなく 治療スケジュールの柔軟性を高めます
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