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Minerva Cardioangiologica 2015 December;63(6):563-75

Copyright © 2015 EDIZIONI MINERVA MEDICA

lingua: Inglese

Thrombus aspiration in ST-segment elevation myocardial infarction

Meneguz-Moreno R. A., Costa R. A., Ribamar Costa J. Jr, Abizaid A.

Department of Interventional Cardiology, Instituto Dante Pazzanese de Cardiologia, Sao Paulo, Brazil


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Primary percutaneous coronary intervention (PCI) has become the treatment of choice in patients with ST-segment elevation myocardial infarction (STEMI) throughout the last years. A significant number of studies have demonstrated a morbidity and mortality benefit over thrombolysis, which has been attributed to better coronary perfusion in patients undergoing primary PCI. Even though it usually achieves normal flow in the affected epicardial vessel, myocardial reperfusion is not fully restored in a significant percentage of patients. This is commonly the result of distal thrombus embolization with subsequent impairment of myocardial microcirculation. Recognition of this has led to the development of a number of devices with different mechanisms, including thrombus aspiration catheters, in order to reduce distal embolization and therefore improve myocardial perfusion. Recent studies indeed demonstrate that the use of such devices offer additional clinical advantage in patients undergoing primary PCI in comparison to the standard PCI, whether in other trials it could not be proved. This paper focuses on general mechanisms of thrombus formation and discusses favorable and unfavorable studies towards thrombus aspiration in STEMI and its main aspects and it comes up with specific subjects that could benefit or not from the procedure of thrombus aspiration.

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