Modelling > Pathologies and modelling modes > Pathologies and parametrical modes > Aortic valve failure

This pathologic mode describes aortic locking insufficiency leading to blood regurgitation from the aorta to the left ventricle in diastolic phase.

Aortic valve failure

Turbulent regurgitation in diastolic phase

The mathematical description of this pathology is determined by the equation describing blood flow through aortic valve:

(31)

The second part of the formula (31) describes the process of blood regurgitation through aortic valve in diastolic phase in case of valvular locking defect (0 < r_HLAL< 0.3). In its normal state r_HLAL takes on the value 0.

The modelling is realized by putting a scroller "Degree of pathogenicity" on the values from 0 (pathology absence) to 100 (the highest severity level). For the highest severity level there is a value of r_HLAL= 0.3 (the level of blood regurgitation through aortic valve amounts to 50% from left ventricular stroke volume).

Modelling > Pathologies and modelling modes > Pathologies and parametrical modes > Aortic valve failure