Mr Gibbs explains some of the complications after aneurysm repair by both EVAR (keyhole repair) or open surgical repair. This can be a very important factor for many patients to consider before deciding which operation to choose. The most common post-operative complications for EVAR are usually small. The risk of significant complications for open repair is much higher than EVAR, which can include major bleeding, lack of blood flow to the legs or guts. But in the longer term, EVAR tends to have more complications as they are less durable.