Subclinical Leaflet Thrombosis in Transcatheter Aortic Valve Replacement Detected by Multidetector Computed Tomography - A Review of Current Evidence.

Subclinical leaflet thrombosis (SLT) following transcatheter aortic valve replacement (TAVR) has been increasingly recognized. SLT has the hallmark features of hypo-attenuated leaflet thickening (HALT) on multidetector computed tomography (MDCT), which may result in hypoattenuation affecting motion (HAM). The actual prevalence of this condition is uncertain, with limited observational registries.

Effect of aorto-ventricular angulation on procedural success in transcatheter aortic valve replacements with the Lotus Valve system.

Objective: To determine the effect of aorto-ventricular angulation (AA) on procedural success with the Lotus Valve system.

Background: AA, the angulation of the aortic valve basal plane, may affect the deployment of transcatheter aortic valve replacements (TAVRs). The Lotus Valve system is fully repositionable and delivered on a pre-shaped catheter which may alter the impact of AA on its deployment.