A single-center prospective interventional trial. Patients implanted with a sutureless bioprosthetic aortic valve at Karolinska University Hospital in Stockholm, Sweden from 2012 will be eligible. 4-dimensional volume-rendered computed tomography (CT) of the heart will be performed. The aim of the CT is to assess valve geometry and hypo-atrenuated leaflet thickening. Results of the CT examination, preoperative clinical characteristics, and postoperative clinical data will be registered. Data will be collected prospectively and retrospectively. Informed consent will be obtained from patients meeting the inclusion criteria before the initiation of any study-specific procedures.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
DIAGNOSTIC
Enrollment
47
Karolinska University Hospital
Stockholm, Sweden
Regional expansion of valve prosthesis
Regional expansion measured using the angle formed by the border of each prosthetic leaflet and the centre point of the valve
Time frame: At CT performed once no less than 30 days and up to 10 years after aortic valve replacement
Overall expansion of valve prosthesis
Overall expansion of the implanted prosthesis calculated as the ratio between the ex vivo cross-sectional area and the in vitro cross-sectional area of the implanted valve
Time frame: At CT performed once no less than 30 days and up to 10 years after aortic valve replacement
Eccentricity of valve prosthesis
Eccentricity of the implanted prosthesis calculated as (\[max diameter-min diameter\]/max diameter)×100
Time frame: At CT performed once no less than 30 days and up to 10 years after aortic valve replacement
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