Abstract
A common complication of endovascular repair of a thoracic or abdominal aortic aneurysm (TEVAR - EVAR) is an endoleak occurring in up to 30% of cases. Endoleak is defined as the persistence of blood flow outside the lumen of the endoprosthesis, but within the aneurysm sac and can be classified into 5 categories, depending on the blood flow into the aneurysm sac. Typical features of the different types of endoleaks are discussed as well as the imaging modalities to detect and classify an endoleak and the diverse (endovascular) treatment options.
Highlights
A common complication of endovascular repair of a thoracic or abdominal aortic aneurysm (TEVAR – EVAR) is an endoleak occurring in up to 30% of cases
Endoleak is defined as the persistence of blood flow outside the lumen of the endoprosthesis, but within the aneurysm sac [3]
A distinction temic arterial circulation and there- is made between a type II endoleak fore the aneurysm sac is at high risk involving a single side branch (IIA)
Summary
A common complication of endovascular repair of a thoracic or abdominal aortic aneurysm (TEVAR – EVAR) is an endoleak occurring in up to 30% of cases. Endoleak is defined as the persistence of blood flow outside the lumen of the endoprosthesis, but within the aneurysm sac and can be classified into 5 categories, depending on the blood flow into the aneurysm sac. The goal of endovascular repair of a thoracic or abdominal aortic aneurysm (TEVAR – EVAR) is – as with open surgical repair – to prevent enlargement and rupture of the aneurysm [1]. Endoleak is defined as the persistence of blood flow outside the lumen of the endoprosthesis, but within the aneurysm sac [3]. A classification system for endoleaks has been developed, organizing endoleaks into 5 categories, depending on the blood flow into the aneurysm sac [4]
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