Type:
Educational Exhibit
Keywords:
Education and training, Cardiac Assist Devices, Venous access, Computer Applications-3D, Catheters, CT-Angiography, Vascular, Cardiac, Anatomy
Authors:
Z. FIGUEROA MARQUEZ , G. G. Leal, G. A. Averanga Ticona, Y. P. Narváez Rojas, L. Palacios, H. A. Carreño Cruz, J. Crosta, F. A. Abramzon; Buenos Aires/AR
DOI:
10.26044/ecr2019/C-3679
Background
Degenerative aortic valve stenosis is the most frequent cause of acquired valvulopathy in the western world.
Aortic valve stenosis is an obstruction of the LV outlet tract with an aortic jet velocity> 4m / sec,
a gradient> 40-50 mmHg and a valvular area <1 cm2,
is considered critical stenosis when a valvular area is present < of 0.6 cm2.
The incidence is 5% world population being 2-3%> 75 years.
In asymptomatic patients the survival <50% at 2 years.
The surgical option in valve replacement was the technique of choice for the treatment,
but a large percentage of patients were excluded due to surgical risk and comorbidities such as age,
radiation therapy in the previous chest,
severe aortic calcification,
severe pulmonary disease,
previous AMI,
ACV,
ventricular fibrillation.
Advances in surgery and interventional cardiology have allowed the development of less invasive techniques that allow the implantation of aortic valve prostheses percutaneously (TAVI transcatheter aortic valve implantation or TAVR Transcatheter Aortic Valve Replacement) in patients with a high surgical risk for surgical procedures open.