Do patients with low-gradient "severe" aortic stenosis and normal ejection fraction have similar outcomes to patients with moderate stenosis?
Low-gradient severe aortic stenosis with preserved ejection fraction behaves clinically like moderate aortic stenosis.
Patients with low-gradient "severe" aortic stenosis and normal ejection fraction have an outcome similar to that in patients with moderate stenosis.
Jander et al. (Tue,) studied this question.