Valvular and perivalvular thrombosis following self-expandable aortic valve replacement: analysis of 100 multi-detector computed tomography scans.

Aims: Subclinical thrombosis may represent an early stage of prosthesis structural disease. Most of the available evidence on the incidence, location, predictors, and consequences of thrombosis comes from studies that have employed balloon-expandable valves. We aimed to describe the different localisations of valvular and perivalvular thrombosis and analyse prosthesis-host multi-detector computed tomography predictors in the context of self-expandable prosthesis.

Post-implant transcatheter aortic prosthesis deformation: tricuspid versus bicuspid valve.

Objective: We sought to assess whether post-implant transcatheter aortic valve prosthesis multi detector computed characteristics differ between patients with native tricuspid and bicuspid aortic valve stenosis, as well as the effect on valve performance and clinical implications.

Methods: We analysed 100 consecutive post-implant multi detector computed tomography scans to assess self-expandable prosthesis non-uniform expansion at six pre-specified valvular levels, and other specific parameters, including valvular and perivalvular thrombosis at six months follow-up. Echocardiographic prosthesis performance and clinical outcome was also evaluated.

Utilization of Ultrashort Bicon Implants in Clinical Situations: A Retrospective Case Series.

When vertical bone loss results in insufficient crestal height to place standard-length implants without the use of osseous grafting, this poses clinical issues to implant usage. Based on an analysis of the literature and clinical experience, it has been found that it is possible to optimally use the available bone volume of the maxillary and mandibular ridges for implant placement without extensive osseous grafting to increase vertical height. This case report will examine several uses of ultrashort implants utilizing the Bicon system in common clinical situations in the maxillary and mandibular arches without the need for osseous reconstruction to improve the available vertical height of the crest to permit implant placement.

Feasibility of redo-TAVI in the self-expanding ACURATE neo2 valve: a computed tomography study.

Background: Redo-transcatheter aortic valve implantation (TAVI) may be unfeasible because of the risk of compromising coronary flow or coronary access by the pinned back leaflets of the index transcatheter aortic valve.

Aims: We aimed to evaluate the feasibility of redo-TAVI using the balloon-expandable SAPIEN 3 (S3) implanted within the self-expanding ACURATE neo2 (ACn2) valve and to identify predictors associated with a high risk of compromising coronary flow.

Methods: A total of 153 post-ACn2 TAVI cardiac computed tomography scans were analysed.