関連する実験動画
Updated: Jun 1, 2026

23:33
The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
Published on: February 28, 2012
atrial fibrillationにおける脳卒中予防のためのダビガトランの費用対効果について
1Department of Medicine, Washington University School of Medicine, Campus Box 8005, 660 S. Euclid Ave, St. Louis, MO 63110, USA. bgage@im.wustl.edu
Circulation
|May 25, 2011
まとめ
動脈動 (AF) の患者では,150mgのダビガトランは高リスク患者には費用対効果が高く,ワルファリンは中程度のリスクの患者には,出血リスクと国際正常化比率のコントロールに応じて最適です.
科学分野:
- 薬学経済学 薬学経済学
- 心臓病学 心臓病学
- 健康経済学 医療経済学
背景:
- ウォルファリンは,心房細動 (AF) の脳卒中予防の標準である.
- 新興の抗凝固剤は,臨床採用のために費用対効果の評価を必要とします.
- 患者特有のリスク要因は,最適な抗血栓治療の選択に影響します.
研究 の 目的:
- AF患者における脳卒中予防のための様々な抗血栓治療の費用対効果を比較する.
- 患者の脳卒中および出血リスクに基づいて,最も費用対効果の高い抗凝固剤戦略を特定する.
- ウォルファリンの費用対効果に対する国際標準化比率 (INR) 制御の影響を評価する.
主な方法:
- RE-LY試験およびその他の情報源からのデータを使用して,意思決定分析のマルコフモデルが開発されました.
- このモデルは,AFを患っている70歳の患者の仮説的なコホートをシミュレートした.
- 費用対効果は,品質調整された寿命年当たり5万ドルの値に対して評価されました.
主要な成果:
- ダビガトラン150 mgを1日2回投与することは,ウォルファリンによるINR制御が優れた場合 (>72.6%の治療範囲内の時間) 以外,脳卒中リスクの高いAF患者にとって費用対効果が高く,効果的でした.
- ウォルファリンは,INR制御が不良 (治療範囲内の時間<57.1%) でない限り,中程度の脳卒中リスクのAF患者に対して費用対効果的でした.
- アスピリン単独治療は,脳卒中リスクが最も低いグループ (CHADS2スコア 0) のみ費用対効果が良かった. ダビガトラン110mgと二重抗血小板治療は,費用対効果がありませんでした.
結論:
- ダビガトラン150 mgは,特にワルファリンのINR制御が最適以下である場合,高リスクAF患者にとって費用対効果の高い代替案を提供します.
- ウォルファリンは,INR管理が良好な中程度のリスクのAF患者にとって,費用対効果の高い選択肢です.
- 治療の選択は,脳卒中リスク,出血リスク,およびINR制御の質に基づいて個別化されるべきです.
関連する概念動画
Anticoagulant Drugs: Vitamin K Antagonists and Direct Oral Anticoagulants
Oral anticoagulants are vital tools in preventing and treating blood clotting disorders. This diverse class of medications can be categorized as vitamin K antagonists, exemplified by warfarin, and direct thrombin inhibitors (DTIs), such as dabigatran, as well as factor Xa inhibitors, including rivaroxaban.
Warfarin, a prominent vitamin K antagonist family member, exerts its effect by inhibiting the enzyme VKORC1 (vitamin K epoxide reductase complex 1). By hindering this enzyme, warfarin...
Warfarin, a prominent vitamin K antagonist family member, exerts its effect by inhibiting the enzyme VKORC1 (vitamin K epoxide reductase complex 1). By hindering this enzyme, warfarin...
Venous Thrombosis III: Interprofessional Care
Venous thrombosis requires effective prevention and treatment strategies to improve patient outcomes and reduce potential complications.Prevention StrategiesHealthcare providers must prioritize preventing venous thromboembolism (VTE) for all adult patients upon admission. Interventions depend on bleeding and thrombosis risk, medical history, current medications, diagnoses, planned procedures, and patient preferences. Patients on bed rest should change positions every two hours and, if not...
Anticoagulant Drugs: Low-Molecular-Weight Heparins
Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors
Antiplatelet drugs emerge as frontline defenders against the insidious threat of thromboembolic diseases, where abnormal clots obstruct vital blood vessels. These drugs stand as bulwarks, inhibiting platelet aggregation and clot formation, thereby mitigating the risk of life-threatening conditions like myocardial infarction, coronary artery disease, and thrombotic strokes.
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
Antiarrhythmic Drugs: Class IV Agents as Calcium Channel Blockers
Class IV antiarrhythmic drugs, such as verapamil and diltiazem, block calcium channels. They primarily affect the heart, slowing the conduction in calcium-dependent tissues like the SA and AV nodes. These drugs manage reentrant supraventricular tachycardia (SVT) and reduce ventricular rate in atrial flutter/fibrillation.
Verapamil, a calcium channel blocker, inhibits calcium movement across myocardial cell membranes and vascular smooth muscle. This results in the dilation of coronary and...
Verapamil, a calcium channel blocker, inhibits calcium movement across myocardial cell membranes and vascular smooth muscle. This results in the dilation of coronary and...
