Target Temperature Management In Myocardial Infarction - A Pilot Study
The primary goal in the treatment of acute myocardial infarction is to reperfuse the ischemic myocardium to reduce infarct size. Animal data and human data suggest that whole-body cooling to temperatures below 35°C before revascularisation can additionally reduce infarct size and therefore improves outcome in these patients.
The purpose of the study is to determine the feasibility and safety of a combined cooling strategy started in the out-of-hospital arena for achieving pre-reperfusion hypothermia in patients with acute st-elevation myocardial infarction.
調査の概要
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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Vienna、オーストリア、1090
- Medical University of Vienna
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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 between 18 and 75 years
- Immediately transfer to cath-lab is possible
- Anterior or inferior ST-Elevation myocardial infarction
- ST-Segment elevation of >0.2mV in 2 or more anatomically contiguous leads
- Duration of symptoms <6 hours
Exclusion Criteria:
- Participation in another study
- Patients presenting with cardiac arrest
- Tympanic temperature of <35.0°C prior enrolment
- Thrombolysis therapy
- Previous myocardial infarction in medical history
- Previous percutaneous coronary intervention or coronary artery bypass graft
- Severe heart failure (defined as a New York Heart Association (NYHA) score of III or IV), Killip class II through IV at presentation
- Clinical signs of infection
- End-stage kidney disease or hepatic failure
- Recent stroke (within the last six month)
- Conditions that may be exacerbated by hypothermia, such as haematological dyscrasias, oral anticoagulant treatment with international normalized radio >1.5, severe pulmonary disease
- Pregnancy. Women of childbearing potential are excluded
- Allergy to meperidine, buspirone, magnesium, or polyvinyl chloride
- Use of a monoamine oxidase inhibitor such as selegiline in the previous 14 days
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:処理
- 割り当て:なし
- 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 |
|---|---|
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実験的:Pre- and perinterventional hypothermia
Cooling will be initiated by the application of cooling pads in the out-of-hospital setting followed by an infusion of 1000-2000ml of cold saline.
In the cath lab a endovascular cooling catheter will be placed into the inferior vena cava via a femoral vein to achieve a core temperature of <35°C prior to revascularization.
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Surface cooling with EMCOOLS flex pads (out-of-hospital); Infusion of 1000ml to 2000ml of cold saline (out-of-hospital); central-venous cooling (Philips Innercool RTx)
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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 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Feasibility of a combined cooling strategy for achieving a core temperature of <35.0°C at the time of reperfusion of the infarct related artery
時間枠:Time of reperfusion of the culprit lesion in st-elevation myocardial infarction (expected average 120 minutes)
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Blood temperature will be recorded at the time of first wire-crossed lesion of the infarct related coronary stenosis
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Time of reperfusion of the culprit lesion in st-elevation myocardial infarction (expected average 120 minutes)
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Safety of a combined cooling strategy as an adjunctive therapy on primary percutaneous coronary intervention in acute st-elevation myocardial infarction
時間枠:within 45 days (+/- 15 days)
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Incidence of major adverse cardiac events as defined as: death, heart failure, pulmonary edema, recurrent MI, malignant arrhythmias (i.e.
ventricular fibrillation, sustained ventricular tachycardia) emergent stent revascularisation, any hospitalisation, major/minor bleeding (according to TIMI-bleeding score), infection (clinical relevant infection with the need of systemic antimicrobiotic therapy) within a period of 45±15 days
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within 45 days (+/- 15 days)
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Tolerability of a combined cooling strategy as an adjunctive therapy on primary percutaneous coronary intervention in acute st-elevation myocardial infarction
時間枠:during active cooling and rewarming (in average the first 4 hours)
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Patients are monitored for incidence of shivering using a 4-point scale: 0, no shivering evident; 1, isolated facial or masticatory fasciculation; 2, peripheral shivering; 3, uncontrolled rigor during the cooling procedure (in average the first 4 hours)
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during active cooling and rewarming (in average the first 4 hours)
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Time to revascularisation (first medical contact to balloon time)
時間枠:Time of reperfusion (in average 120 minutes)
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The time to reperfusion of the infarct related artery is crucial in acute ST-elevation myocardial infarction.
To evaluate if the cooling procedure has a substantial influence on this time frame we measure the time from first medical contact to reperfusion.
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Time of reperfusion (in average 120 minutes)
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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 (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
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