A prospective study of 600 patients with severe aortic stenosis (AS) and symptoms who underwent TAVI at the Haukeland university hospital, Bergen, Norway.

A prospective study of 600 patients with severe aortic stenosis (AS) and symptoms who underwent TAVI at the Haukeland university hospital, Bergen, Norway between January 2012 and July 2019.

Demographics, clinical data including cardiovascular risk factors, arterial and echocardiographic parameters were prospectively collected. The data on all-cause mortality will be collected. Echocardiograms (immediate before TAVI, at discharge after TAVI and at 6-12 months follow-up) will be analyzed. The main scientific objectives are:

To assess survival benefits of TAVI according to baseline risk profile. To determine the echocardiographic predictors of left ventricular mass regression and left ventricular function recovery.

To evaluate global LV load (Zva=valvular-arterial impedance) following TAVI. To assess the impact of various types of blood pressure responses immediately after TAVI on clinical outcomes.

Inclusion Criteria:

1. Hemodynamically severe aortic stenosis and symptoms
2. A decision of TAVI by Heart team
3. Patients undergoing TAVI (transcatheter aortic valve implantation)
4. Life expectancy > 1-2 years

Exclusion Criteria:

1. Sever frailty
2. Severly reduced cognitive function
3. Multiple comorbid conditions
4. Technically not suited for TAVI

600 patients with moderate or severe aortic stenosis of any etiology, and symptoms, where aortic valve intervention was clinially indicated. All patients underwent a successful TAVI (transcatheter aortic valve implantation).

There is no plan to make individual participant data available to other researchers