Altes A, Thellier N, Bohbot Y, et al. - Researchers examined a cohort of patients with low gradient severe aortic stenosis (LG-SAS) and preserved left ventricular ejection fraction (LVEF) in order to determine the association between the ratio of acceleration time (AT) to ejection time (ET)—an ejection dynamic parameter linked to AS severity— and outcome. The participants were 356 in total and had preserved LVEF ≥ 50%. The median follow-up duration was 41 months. For patients with AT/ET > 0.36, the 5-year estimates of all-cause and cardiac mortality were 57 ± 7% and 36 ± 7%, respectively, these values were 43 ± 4%, 16 ± 3% for patients with AT/ET ≤ 0.36. In this study, mortality in patients with LG-SAS and preserved EF was independently predicted by an AT/ET ratio of more than 0.36.