Incomplete aneurysm exclusion, both early and late, was identified as a unique complication of endovascular repair since its inception.The phenomenon was increasingly recognized in the mid-1990s as several authors noted the presence of "leaks" to signify persistence (or recurrence) of paragraft flow.White et al were first to describe the growing problem with clarity and coined a brand-new term: "We propose a preferable, novel terminology -endoleak-for this new phenomenon, which is associated only with endoluminal grafts." The clever new term was received enthusiastically and adopted rapidly the world over.
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