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アンチフォスフォリピド抗体症候群の管理:体系的なレビュー
Wendy Lim1, Mark A Crowther, John W Eikelboom
1Department of Medicine, McMaster University, Hamilton, Ontario, Canada.
JAMA
|March 2, 2006
まとめ
適度な濃度のワルファリンは,抗リン脂抗体症候群 (APS) の再発性血栓を効果的に予防します. アスピリンは,特定のケースでは脳卒中予防にも有効ですが,APSの他の血栓性リスクについてはさらなる研究が必要です.
科学分野:
- レウマトロジーの病理学
- 血液学 ヘマトロジ
- 産科は産婦人科です.
背景:
- アンチフォスフォリピド抗体は,フォスフォリピドに結合するタンパク質を標的にします.
- アンチフォスフォリピド抗体症候群 (Antiphosphospholipid antibody syndrome,APS) は,これらの抗体を血栓形成や妊娠合併症と関連付けている.
- APSの患者は,再発性動脈/静脈血栓症や妊娠中絶のリスクが高まります.
研究 の 目的:
- アンチフォスフォリピド抗体またはAPSを持つ患者の血栓形成リスクの治療に関する証拠を体系的に検討する.
- APS患者における血栓性イベントの現在の治療戦略を評価する.
主な方法:
- MEDLINEとコクラン図書館のデータベース (2005年11月まで) の体系的な文献検索を行った.
- ランダム化試験,メタアナリシス,およびAPSにおける血栓形成リスク治療に関連する前向きなコホート研究が含まれています.
- 証拠の合成のための臨床的関連性に基づいて選択された研究.
主要な成果:
- 適度な濃度のワルファリン (INR 2.0-3.0) は,プラセボと比較して80〜90%の頻発性静脈血栓症を大幅に減少させます.
- ウォルファリンはまた,再発性動脈栓塞の予防にも有効である可能性がある;高強度ウォルファリンは,追加の利益を示さない.
- アスピリンと中等濃度のワルファリンは,前回の脳卒中と単一の陽性抗フォスホリピド抗体検査を有する患者の再発性脳卒中の予防に等しく有効であることが示されています.
結論:
- 適度な濃度のワルファリンは,APSにおける再発性静脈性および潜在的に動脈性血栓の予防に有効であることが証明された治療法です.
- アスピリンは,特定の患者のサブグループにおける再発性脳卒中予防において,ワルファリンと同等の有効性を示しています.
- APSの他の血栓性発現に対する最適な治療法を決定するために,さらによく設計された見通し研究が必要です.
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