“…4,40,72,132,141,143,146,147,151,[155][156][157] If perforation is noted at the time of the procedure, then correct placement of the prosthesis may help to seal the tear, as most are small, and conservative management is successful in 66-94%. 72,143,151,154,156,158 Late perforation is also possible in 1-8% owing to pressure necrosis and can be fatal if aortic erosion occurs. 72,151 Since only radial force and the flange friction secure the tube, migration occurs in up to 30%, higher when used for soft, polypoid or necrotic tumours.…”