Ambulatory Arterial Stiffness Index Is Not a Specific Marker of Reduced Arterial Compliance
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To the Editor:
The Ambulatory Arterial Stiffness Index (AASI) is a newly described ambulatory blood pressure measure-derived predictor of cardiovascular outcome. The proposition that AASI is a noninvasive measure of arterial stiffness already elicited some criticism.1,2 Schillaci et al,3 who explored the determinants of AASI among untreated hypertensive …