September 17, 2022 — Medtronic today announced findings from its Pathological Study of Hypo-Attenuated Leaflet Thickening (HALT) in Self-Expanding Transcatheter Aortic Valves, as part of the CoreValve Evolut Program. The study is the first to compare microCT and histology findings of valve leaflet thickening, the results of which may provide clinical insights for long-term durability of transcatheter aortic valves (TAVs) and treatment of HALT.