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A medical therapy for aortic valve sclerosis and aortic valve stenosis? Rationale of the ASSIST study (Asymptomatic aortic Sclerosis/Stenosis: Influence of STatins): a large, observational, prospective, multicenter study of the Italian Society of Cardiovascular Echography.

Progression of sclerosis and stenosis is substantially unpredictable in the individual patient: in some cases it is very slow, in others it is accelerated. In addition, different patterns of progression (linear and non-linear) are possible. It has been suggested that the aortic valve lesion can be considered a form within the spectrum of the same atherosclerotic disease. In this context it seemed reasonable to hypothesize that targeted medical therapy could retard the progression of the disease. In particular HMG-CoA reductase inhibitors (statins) and angiotensin-converting enzyme inhibitors have been tested. The first experimental and clinical studies are now available, even though they are not conclusive to date. Large, prospective, randomized trials are ideally needed, but they are quite difficult, if not even impossible, to realize in practice. The ASSIST study (Asymptomatic aortic Sclerosis/Stenosis: Influence of STatins) of the Italian Society of Cardiovascular Echography aims to create a large, prospective, observational investigation, involving many centers of echocardiography and thousands of patients, in order to provide from the real clinical world at least some of the answers to this unsolved question.