One-third of patients with low flow aortic stenosis do not improve with transcatheter aortic valve replacement, research finds

For patients with low flow aortic stenosis, TAVR — a minimally invasive procedure which corrects the damaged aortic valve — is often the best option for restoring the heart’s normal pumping function. However, approximately one-third of these patients treated with TAVR continue to suffer persistent low flow AS. Researchers have examined this high-risk patient population to determine the cause and evaluate risk of mortality.