METHOD FOR DETERMINING INDICATIONS FOR FONTEN SURGERY IN PATIENTS WITH FUNCTIONALLY SINGLE VENTRICLE Russian patent published in 2022 - IPC A61B5/522 A61K49/06 A61P43/00 

FIELD: medicine.

SUBSTANCE: invention relates to medicine, namely to cardiovascular surgery. Multispiral computed tomography of the chest organs is performed against the background of intravenous administration of non-ionic contrast agents at a rate of no more than 2 ml/kg of body weight using automatic injectors. Each pulmonary vein is measured at several levels: from the fusion of the pulmonary veins at the level of the segmental ones with the lobar veins - the bifurcation of the pulmonary veins, the lobar veins at the level of the flow of the pulmonary veins into the atrium - the mouth of the pulmonary veins. At each of the levels, the cross-sectional area of ​​the pulmonary vein is determined in a plane perpendicular to the pulmonary vein. The smallest vein area is taken into account as the smallest level of vein throughput. The formula for calculating the pulmonary venous index (PVI) includes the areas of the pulmonary veins in the narrowest and, accordingly, hemodynamically significant areas. Thus, PVI is calculated as the sum of the cross-sectional areas of the pulmonary veins, correlated to the body surface area, determine and sum up the cross-sectional areas of four pulmonary veins - the right upper and lower lobe, left upper and lower lobe veins. If the PVI is less than 204.950 mm²/m², then the Fontaine operation is not indicated for the patient.

EFFECT: method makes it possible to make a decision on the admissibility of performing the Fontan operation in patients with a functionally single ventricle of the heart.

1 cl, 1 ex