Differences in Epicardial Plaque and Microvascular Function in Women With an Acute Myocardial Infarction
調査の概要
詳細な説明
The hypothesis of the current study is that plaque erosion and microvascular dysfunction are key features responsible for the increased peri-MI mortality in young women. In order to test this hypothesis the following specific aims are proposed using a special intravascular ultrasound technique called virtual histology and microvascular function (effect of intracoronary adenosine on coronary blood flow) in patients coming to the cardiac catheterization laboratory with an acute MI:
- To determine if plaque rupture or plaque erosion is more prevalent in young women (<50 years) compared with older women (≥ 50 years) and men in the development of an acute MI
- To determine if inflammatory mediators of plaque rupture are higher in older women and men with an acute MI compared with younger women
- To determine if microvascular function is abnormal in young women undergoing percutaneous coronary revascularization with an acute MI compared to older women and men
- To determine if alterations exist in the number and function of EPCs in young women (<50 years) compared with older women (≥ 50 years) and men who have had an acute MI and to determine the association with microvascular function
研究の種類
入学 (実際)
段階
- 適用できない
連絡先と場所
研究場所
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-
Minnesota
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Rochester、Minnesota、アメリカ、55905
- Mayo Clinic
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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
説明
Inclusion Criteria:
- Age of 18 years or older
- Acute coronary syndrome defined as at least two of the following:
A) an elevated cardiac biomarker (troponin or CK-MB), B) new or dynamic ECG changes in at least 2 contiguous standard electrocardiographic leads of ST depression > 1 mm or ST elevation of >1 mm or T-wave inversions, C) chest pain or discomfort of at least 15 minutes duration, D) a new wall motion abnormality by echocardiography
- Patient who is undergoing coronary angiography
- Physician planning to perform IVUS for treatment of the infarct-related vessel
Exclusion Criteria:
- Creatinine > 2.0 mg/dL (most recent)
- Hemodynamically unstable patients (systolic blood pressure < 90 mmHg or heart rate > 110 beats/ minute or presence of an intra-aortic balloon pump)
- Coronary revascularization (percutaneously or surgically) within 6 months
- The use of chronic immunosuppressive agents
- No target lesion was found at the time of cardiac catheterization that will be percutaneously intervened upon (the patient must undergo percutaneous coronary intervention)
- Inability to give informed consent
- Pregnant or lactating women
- Prisoners
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
- 主な目的:診断
- 割り当て:非ランダム化
- 介入モデル:単一グループの割り当て
- マスキング:なし(オープンラベル)
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
アクティブコンパレータ:1
Gender comparison
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Intravascular ultrasound with virtual histology
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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 |
|---|---|
|
Plaque Virtual Histology
時間枠:Performed during PCI
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Performed during PCI
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二次結果の測定
結果測定 |
時間枠 |
|---|---|
|
Endothelial Progenitor Cells
時間枠:Collected immediately pre PCI
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Collected immediately pre PCI
|
|
Microvascular function in the noninfarct related vessel
時間枠:Assessed immediately post PCI
|
Assessed immediately post PCI
|
|
Virtual Histology in noninfarct related vessel
時間枠:Assessed immediately post PCI
|
Assessed immediately post PCI
|
協力者と研究者
スポンサー
捜査官
- 主任研究者:Patricia M. Best, M.D.、Mayo Clinic
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
一次修了 (実際)
研究の完了 (実際)
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。