What defines a Type 3 endoleak?

A Type 3 endoleak is defined by defects in the graft material or the separation between the components of a modular endograft. This type of endoleak occurs when blood flows between the graft components or through a tear in the graft itself, compromising the seal and allowing blood to flow back into the aneurysm sac.

The presence of a Type 3 endoleak is particularly concerning as it can lead to significant risks, including persistent expansion of the aneurysm and potential rupture. Immediate evaluation and intervention may be necessary to address this issue and maintain the integrity of the endovascular repair.

Understanding this classification is critical in the management of endovascular aortic repair (EVAR) procedures, and differentiating Type 3 endoleaks from other types can aid in determining the appropriate course of action for patient care.