METHOD FOR AUGMENTATION OF PULMONARY VALVE CUSPS WITH PULMONARY TRUNK AUTOTISSUE Russian patent published in 2024 - IPC A61B17/00 

FIELD: medicine; cardiosurgery.

SUBSTANCE: median sternotomy approach to heart and great vessels is performed. Pulmonary artery trunk with branches is separated by cardiopulmonary bypass after clamping an ascending aorta and introducing a cardioplegic solution. Longitudinal opening of the pulmonary artery trunk is performed on the arrested heart, and a pulmonary artery valve is inspected. Further, using templates, intercommissural distances are measured, on the basis of which a flap of the pulmonary artery trunk is taken in the region of the anterior and lateral walls of the pulmonary artery, above the level of commissures, semilunar cusps and orifices of branches of the pulmonary artery. After commissurotomy of the valve of the pulmonary artery, the integrity of the native cusps making up one third of the cusps is restored from the cusps cut out according to the template with restoration of their cup-like shape. Commissures between the cusps are reinforced with interrupted sutures, and the valve competence is assessed. Pulmonary artery trunk is repaired with the help of an autopericardium tissue patch, and the operation is completed under conditions of artificial circulation.

EFFECT: method enables reducing the risk of thrombosis and calcification, reducing the frequency of repeated interventions by improving the biocompatible properties of the cardiovascular prosthesis and the tricuspid valve.

1 cl, 1 dwg, 1 ex