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

This pathologic mode describes pulmonary locking insufficiency leading to blood regurgitation from the pulmonary artery to the right ventricle in diastolic phase.

Pulmonary valve failure

Turbulent regurgitation in diastolic phase

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

(32)

The second part of the formula (32) describes the process of blood regurgitation through pulmonary valve in diastolic phase in case of valvular locking defect (0 < r_HRAR< 0.3). In its normal state r_HRAR 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_HRAR= 0.3 (the level of blood regurgitation through pulmonary valve amounts to 50% from ventricular stroke volume).

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