Warfarin Quality, Adherence, Range, Determinants, and Events in Egyptian Rheumatic Heart Disease and Atrial Fibrillation (WARDEN-Egypt)
Time in Therapeutic Range, Predictors of Poor Anticoagulation Control, and Clinical Outcomes in Egyptian Patients With Rheumatic Heart Disease and Atrial Fibrillation on Warfarin: A Single Center Retrospective-Prospective Cohort Study
調査の概要
状態
条件
詳細な説明
研究の種類
入学 (推定)
連絡先と場所
研究連絡先
- 名前:Mariam Yacoub, Dr
- 電話番号:0111 0201103 0201146623011
- メール:mariamsobhyyakoub@icloud.com
研究場所
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Asyut Governorate
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Asyut、Asyut Governorate、エジプト
- Assiut University Heart Hospital, Assiut, Egypt
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コンタクト:
- Assiut university
- 電話番号:208822080150
- メール:vp_grad@aun.edu.eg
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コンタクト:
- 電話番号:208822080150
- メール:vp_grad@aun.edu.eg
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参加基準
適格基準
就学可能な年齢
- 大人
- 高齢者
健康ボランティアの受け入れ
サンプリング方法
調査対象母集団
説明
Inclusion Criteria:
Inclusion Criteria
- Age ≥18 years
- Confirmed diagnosis of rheumatic heart disease (echocardiographic evidence of rheumatic valve morphology, prior history of rheumatic fever, or cardiology consultant diagnosis recorded in medical records)
- Electrocardiographically or holter-confirmed atrial fibrillation (paroxysmal, persistent, or permanent)
- On warfarin therapy for at least 6 consecutive months prior to enrollment with the intent to continue
- At least 3 recorded INR values in the preceding 12 months in the center's logbook (minimum data requirement for Rosendaal TTR calculation)
- Willingness to attend scheduled follow-up visits for 12 months and to provide written informed consent
Exclusion Criteria: 1. Anticipated cardiac surgery, valvuloplasty, or cardioversion within the next 6 months 2. Pregnancy or planned pregnancy during the study period 3. Active malignancy or other life-limiting condition with expected survival <12 months 4. Current or recent (≤12 months) use of a direct oral anticoagulant or heparin as primary anticoagulation 5. Severe hepatic impairment (Child-Pugh C) or known bleeding diathesis 6. Residence in a geographic area making 12-month follow-up participation unreasonably burdensome (as judged by the site investigator) 7. Fewer than 3 documented INR values in the preceding 12 months (insufficient data for Rosendaal TTR calculation) 6. Presence of a mechanical prosthetic heart valve (MPHV) in any position (aortic or mitral), regardless of thrombogenicity category. Patients with bioprosthetic (tissue) valves are not excluded, provided the prescribed INR target is 2.0-3.0 and all other inclusion criteria are met.
Patients with mechanical prosthetic heart valves (MPHVs) are excluded from this study. With all enrolled patients having native RHD-AF, a uniform INR therapeutic target of 2.0-3.0 applies to every participant, eliminating patient-specific target adjustments and rendering valve type non-informative as an analytical predictor. The overwhelming majority of warfarin-treated RHD-AF patients at Assiut University Heart Hospital have rheumatic mitral stenosis as the dominant lesion, making this a clinically homogeneous and internally valid study population. Patients with bioprosthetic (tissue) valves on warfarin for AF are not excluded, provided their prescribed INR target is 2.0-3.0 and all other inclusion criteria are satisfied.
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研究計画
研究はどのように設計されていますか?
デザインの詳細
この研究は何を測定していますか?
主要な結果の測定
結果測定 |
時間枠 |
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Primary Endpoints: (1) Mean TTR by Rosendaal linear interpolation; (2) Predictors of poor TTR (TTR <65%)
時間枠:12 months of archived INR data extracted at enrollment
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12 months of archived INR data extracted at enrollment
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協力者と研究者
スポンサー
出版物と役立つリンク
便利なリンク
研究記録日
主要日程の研究
研究開始 (推定)
一次修了 (推定)
研究の完了 (推定)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
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