Aortic valve stenosis.

摘要

Blase Carabello and Walter Paulus discuss management of a subset of patients with aortic stenosis, a low ejection fraction, and a low transvalvular gradient. However, it is also important to discuss a large subset of patients with severe aortic stenosis, a normal left-ventricular ejection fraction (>50%), and paradoxically low transvalvular gradients.