​The patient will be given general anaesthesia after entering the operating theatre. An incision will be made down the middle of the chest and the surgeon will begin to examine the heart. The patient’s heart will be connected to a heart-lung bypass machine, which will supply oxygen to the blood and pump it back to the rest of the patient’s body. Next, the aortic surgery will begin. The aorta is opened to reveal the aortic valve. The new artificial valve will be stitched in place after the old valve is removed. After the aorta has been closed with stitches, the patient will slowly be removed from the heart-lung bypass machine when the heart regains strength.