The KCCQ has now become the only cited health related (HR) QoL validated scale for use among a growing TAVI (Transcatheter Aortic Valve Implantation) patient population; however questions on the KCCQ do not reflect the concerns and lifestyle of patients proceeding for aortic valve intervention. Many of the questions do not reflect this patient population's perspective of well-being in contrast to perceptions by the general cardiac population on which it was validated. It is important to capture the disruptions caused by a chronic disease and its treatment on lifestyles, activities, and interests; that is interference with psychologically meaningful activity. It has been noted that this interference varies by disease process and treatment by general scales such as the Illness Intrusiveness Scale .