I had AVR nearly two years ago. The surgeon chose to do minimally invasive surgery, it wasn't something I'd asked for, it was something she just planned to do as it's often done when you just need the aortic valve replaced and nothing else doing. But when it came to the operating theatre the surgeon was unable to do it and had to do a regular median sternotomy instead - apparently she couldn't gain access to my aortic valve with the minimally invasive incision.