This protocol addresses patients with severe aortic stenosis who are not candidates for surgical aortic valve replacement and in whom transfemoral vascular access cannot be used for a standard transcatheter approach.
The patient presents with severe aortic stenosis, is deemed unsuitable for surgery, and transfemoral access is not feasible — a combination that limits conventional options and requires an alternative interventional strategy.
In this setting, a transcatheter aortic valve approach via an alternative, non-transfemoral access route is considered. The complete protocol specifies which access route applies and the evidence supporting it.