The Ross Procedure is usually used in young patients with aortic valve disease. The pulmonary valve is on the right side of the heart and has virtually the same structure as the aortic valve which is on the left side of the heart. In the Ross Procedure, the surgeon removes your diseased aortic valve as well as your pulmonary valve. The pulmonary valve is then sewn into your aortic position so it bascially becomes your new aortic valve . A pulmonary valve from a donor (usually) is sewn into the pulmonary position. This is generally meant to be better for younger patients because it means that they do not have to take anticoagulant drugs (as with a mechanical valve replacement) and porcine aortic valve replacements do not last as long. But make sure you ask your doctor as many questions about it all as you need to! All the best