Evaluation of the Usefulness of Imaging Methods and 3D Reconstruction in Percutaneous Closure Procedures of PVL.

Inclusion Criteria: * The presence of clinically and haemodynamically significant leakage around the surgically implanted cardiac prosthesis in the mitral or aortic position. * Heart surgery (heart team) disability after another cardiac surgery. * Technical feasibility of paravalvular leakage closure according to experienced operator. Exclusion Criteria: * Active endocarditis on artificial valve * Instability of artificial valve * The amount of cavity that prevents effective closure with an occluder * A history of acute coronary syndrome in less than 3 months before enrollment * Confirmed echocardiography of transplatin or transesophageal echocardiography * Hypersensitivity to contrast media * Any condition associated with the expected life expectancy of less than 6 months * Haemorrhagic diathesis * Significant renal impairment (eGFR \<30 mL/min/1.73m2)/chronic kidney disease at \>G3 stage * Pregnancy or lactation * Under 18 years of age * Patient unable or unwilling to give an informed consent to participate in the study