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妊娠中および産褥期のA型大動脈解離:25年間60例の経験
Jun-Ming Zhu1, Su-Wei Chen1, Wei-Guo Ma2
1Department of Cardiovascular Surgery, Beijing Anzhen Hospital of Capital Medical University, Beijing, China.
The Journal of thoracic and cardiovascular surgery
|January 11, 2026
まとめ
妊娠中のA型大動脈解離(TAAD)の管理には、適時介入が必要である。妊娠28週以降のTAADでは、分娩後に大動脈修復を行うことが、母児生存率を向上させる。
科学分野:
- 心臓血管外科、母体胎児医学、大動脈疾患
背景:
- 妊娠中または産褥期のA型大動脈解離(TAAD)は、まれであるが生命を脅かす状態である。 母児の転帰のバランスをとる最適な管理戦略については、依然として議論の余地がある。
研究 の 目的:
- 妊娠中および産褥期のA型大動脈解離(TAAD)の管理に関する長期的な経験を25年間評価すること。 異なる管理戦略が母児生存率に与える影響を分析すること。
主な方法:
- 1998年から2023年の間に管理されたTAADを有する妊娠60例の後ろ向きレビュー。 管理戦略は、在胎週数に基づいて、単段階での分娩および修復、分娩優先、または大動脈修復優先に分類された。
主要な成果:
- 手術管理は症例の98.3%で実施された。 単段階での分娩および大動脈修復(48.3%)および分娩優先(30%)は、修復優先戦略と比較して、母児生存率が良好であった。 長期追跡調査により、10年間の母児生存率はそれぞれ79.3%、67.7%であることが明らかになった。
結論:
- 妊娠28週以降のTAADでは、分娩と大動脈修復を組み合わせた単段階アプローチが好ましい。 妊娠28週以前の症例では、胎児の転帰が不確実であるため、母体の生存を優先することが重要である。 マルファン症候群の女性で妊娠を考慮する場合、大動脈基部径が小さい(≥45 mm)場合の予防的な大動脈修復が有益である可能性がある。
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