7 patients died of thromboembolic disease. Exact incidence of VT is not known, but symptomatic appears to be relatively rare. VT is, however, likely a significant cause of death. All pseudoaneurysms are at high risk for rupture and should be referred for surgical repair. Unlike true aneurysms, this risk is chronic.
True aneurysms have a low risk of rupture after they have scarred.
Although no clinical trial has been done, there seems to be a consensus to operate on pseudoaneurysms. 91 patients survived. This paper studied 15 patients pre and post aneurysmectomy. They observed an increased LV EF at rest and after stress after aneurysmectomy, but there was no change in the exercise induced EF among patients who could increase their EF with exercise prior to surgery. Authors feel that there is no need for aneurysmectomy in addition to bypass.