ALDOsterone for Prediction of Post-Operative Atrial Fibrillation (ALDO-POAF)
Post-operative atrial fibrillation (POAF) is a major and frequent complication occurring after cardiac surgery, contributing to prolonged intensive care and hospital stays and is associated with several cardiovascular complications. The exact mechanisms and signaling pathways involved in the development of POAF seem to be multifactorial and remain to date incompletely understood. β-blockers and amiodarone are the first line preventive drugs but are partially effective and near 30% of POAF resist to these strategies. In this context, there is some evidence indicating that renin-angiotensin-aldosterone system and Galectin-3 (Gal-3) share signaling pathways in the development of cardiac fibrosis and therefore could be very useful predictive biomarkers of POAF and potentially interesting therapeutic target to prevent POAF occurrence.
The investigators hypothesis is that preoperative plasma aldosterone levels and galectin-3 (Gal-3) expression (in plasma, right atrial appendage or epicardial fat) could be predictive of POAF in patients undergoing elective CABG surgery with preserved LVEF.
調査の概要
状態
条件
研究の種類
入学 (予想される)
連絡先と場所
研究場所
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Basse Normandie
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Caen、Basse Normandie、フランス、14000
- 募集
- Joachim ALEXANDRE
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コンタクト:
- Mathieu CHEQUEL, MD
- 電話番号:+33625342363
- メール:chequel-m@chu-caen.fr
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コンタクト:
- Pierre OLLITRAULT, MD
- 電話番号:+33624922671
- メール:ollitrault-p@chu-caen.fr
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
サンプリング方法
調査対象母集団
説明
Inclusion Criteria:
- Patients hospitalized for planned surgical coronary revascularization +/- aortic replacement valve
- Aged 18 years at least
- Clinically Stable (see criteria for non-inclusion)
- With left ventricular ejection fraction preserved (>50%)
Exclusion Criteria:
- Patient having already AF history
- Patient with primary hyperaldosteronism
- Unstable Patient defined as any cardiovascular event occurred in the previous 30 days
These events are:
- hospitalisation for cardiovascular causes
- appearance or worsening of symptoms consistent with cardiac failure
- appearance or worsening symptoms of coronary
- Patient refusing participation in the study
- Patient unable to provide follow-up visits
- need for concomitant mitral surgery
- Emergency CABG
- Left ventricular ejection fraction (LVEF) < 50%
- Previous heart surgery
- Off pump CABG.
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
コホートと介入
グループ/コホート |
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Planned cardiac surgery. POAF occurence or not
The ALDO-POAF study is an observational, 1-center and prospective pilot study that will enroll patients undergoing CABG ± aortic valve replacement.
Patients who had emergency CABG, need for concomitant mitral surgery, left ventricular ejection fraction (LVEF) < 50%, a history of AF or other atrial arrhythmia, unstable angina or heart failure, cardiogenic shock, atrioventricular block, hypothyroidism/hyperthyroidism, previous heart surgery, and off-pump or on-pump beating CABG will be excluded.
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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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Occurrence of atrial fibrillation in post-operative period of cardiac surgery (CABG +/- aortic valve replacement)
時間枠:1 month
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1 month
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二次結果の測定
結果測定 |
時間枠 |
|---|---|
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Find a correlation between the local secretion of aldosterone by adipocytes epicardial and the occurrence of AF during the 6 months after surgery in patients undergoing cold bypass coronary artery.
時間枠:6 months
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6 months
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Find a correlation between aldosterone levels secreted in epicardial adipocytes and plasma aldosterone levels.
時間枠:1 month
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1 month
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Find a correlation between preoperative plamastic aldosterone levels and occurence of postoperative atrial fibrillation
時間枠:1 month
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1 month
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Detect aldosterone synthase aldosterone or angiotensin II (measured by quantitative and qualitative assays Western Blot, mRNA or RT-PCR) in the epicardial fat removed during surgery in patients undergoing a CABG.
時間枠:1 month
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1 month
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Find a correlation between preoperative plamastic galectin-3 levels and occurrence of postoperative atrial fibrillation
時間枠:1 month
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1 month
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Find a correlation between preoperative plamastic ngal levels and occurrence of postoperative atrial fibrillation
時間枠:1 month
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1 month
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Find a correlation between preoperative mitochondrial function and occurrence of postoperative atrial fibrillation
時間枠:1 month
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1 month
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Find a correlation between preoperative left atrial strain and occurrence of postoperative atrial fibrillation
時間枠:1 month
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1 month
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Find a correlation between acute renal failure and occurrence of postoperative atrial fibrillation
時間枠:1 month
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1 month
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Find a correlation between occurrence of postoperative atrial fibrillation and all cause cardiovascular morbimortality
時間枠:2 years
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2 years
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Find a correlation between occurrence of postoperative atrial fibrillation and length of hospitalisation
時間枠:1 month
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1 month
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協力者と研究者
出版物と役立つリンク
研究記録日
主要日程の研究
研究開始
一次修了 (予想される)
研究の完了 (予想される)
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 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
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
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。