What problems can occur after treatment of aneurysms?
Open operations for abdominal aortic aneurysms (AAAs) are more major and extensive than EVAR with higher risks of serious problems at the time of the operation. However, the expectation thereafter is for a good permanent result and there should be no need for scans or other checks in the longer term, unlike EVAR (endovascular aneurysm repair). An additional reason for keeping a check on stent grafts after EVAR and not on grafts after an open operation is that EVAR was developed only during the 1990s and stent grafts have been used on a widespread scale only since the millennium. We therefore do not know exactly how well they work in the long term, or how many will develop problems over the years. By contrast, Dacron grafts have been inserted at open operation since the 1950s and have been used in significant numbers since the 1960s, so their performance and the very low risk of problems in the longer term are well documented. Some problems can only occur after one or other kind of proc
