Aortic Stenosis

Aortalna stenoza (AS) suženje je ušća aorte koje može biti prirođeno ili stečeno, a incidencija raste s dobi. Bikuspidalna aortalna valvula često je udružena s drugim srčanim i aortalnim greškama. Bolesnici mogu biti klinički asimptomatski ili simptomatski (uglavnom u uznapredovaloj fazi). U procjeni težine aortalne stenoze osim ultrazvuka srca izvode se ergometrija, MSCT i MR srca. Vrlo je važno dobro procijeniti stupanj aortalne stenoze, osobito kod niskoga transvalvularnoga gradijenta. Zamjena aortalne valvule može biti kirurška (biološki ili mehanički zalistak) ili manje invazivna, transkateterska (TAVI).Aortic stenosis (AS) is a narrowing of the aortic valves. AS can be congenital or acquired, and the incidence increases with age. Bicuspid aortic valve is often associated with other cardiac and aortic anomalies. Clinically, patients can be asymptomatic or symptomatic (mainly in advanced stage). Echocardiography, exercise test, MSCT and MR are non-invasive methods of choice. Assessment of stenosis severity is very important, especially in low transvalvular gradient. Surgical valve replacement is performed with biological or mechanical valves; another, less invasive method is transcatheter aortic replacement (TAVI)