WASHINGTON – All transcatheter aortic valve replacement devices generate debris into the bloodstream, including debris larger than 1 mm, but the amount of the debris differs between devices, according to a study based on collections from a cerebral embolic protection system.
“The quantity of the debris measured by different methods and techniques revealed more debris in patients receiving the Evolut R or Lotus TAVR [transcatheter aortic valve replacement] devices than in patients receiving a Sapien 3 or Sapien XT prosthesis,” reported Tobias Schmidt, MD, a cardiologist at Asklepios Klinik St. Georg, Hamburg, Germany.
Of the 246 patients, 145 (59%) received a Sapien 3 device, 40 (16%) received an Evolut R, 36 (14%) received a Lotus, and 25 (10%) received a Sapien XT. Particle features based on histopathological and histomorphological analyses were compared. A multivariate analysis was conducted to test for interaction with the amount of debris according to patient demographics and procedural characteristics, which differed for the devices evaluated.