Abstract Introduction Aortic stenosis (AS) is highly age-related, and its prevalence increasing rapidly in high-income countries. There are 2 major types of amyloid protein responsible for cardiac amyloidosis (CA) - transthyretin (TTR) immunoglobulin lightchain (AL). Previous cohorts report an incidence ranging from 9 to 16% the presence CA patients with AS referred TAVR. These appear have a si...