This editorial discusses a novel flow-independent metric for aortic stenosis assessment, relative aortic valve stiffness (rAVS), highlighting its potential to eliminate stress testing while noting critical validation needs.
In this issue of AJP-Heart and Circulatory Physiology, Buffle and colleagues introduce a paradigm-shifting approach to aortic stenosis (AS) assessment through their novel parameter, relative aortic valve stiffness (rAVS), derived from sigmoid modeling of the flow-area relationship [1]. By challenging the long-held linear assumptions underlying current diagnostic algorithms, this work offers a flow-independent metric that may eliminate the need for stress testing while providing superior prognostic discrimination. However, several critical questions about generalizability, applicability to specific valve types, and the role of abnormal circulatory states in model validation warrant careful consideration before widespread clinical adoption. This editorial examines the study’s key contributions and addresses fundamental concerns that must be resolved to translate this research into real-world clinical practice.
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Sachiko Kanki (2026) conducted an editorial in Aortic stenosis. Relative aortic valve stiffness (rAVS) vs. Current diagnostic algorithms was evaluated.
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