METHOD FOR IMPLANTATION OF MINICONTOUR FOR AUXILIARY CIRCULATION IN CHILDREN Russian patent published in 2017 - IPC A61B17/00 

FIELD: medicine.

SUBSTANCE: access to the right pleural cavity is provided by an anterior-lateral right-sided thoracotomy in the fourth or fifth intercostal space. The right vagus nerve is visualized by withdrawing the right lung from the pericardium in the lateral direction. Next, the pericardium is opened more medially than the right vagus nerve from the inferior vena cava to the superior vena cava. Holders are placed on the pericardium with access to the line of atrioventric contact, right pulmonary veins and the ascending aorta. Two purse sutures are made with polypropylene filament on Teflon pads on the right upper pulmonary vein with partial capture of the right atrioventous contact area. After that, the lumen of the right upper pulmonary vein is opened in the area bounded by the sutures and expanded in a sharp way, followed by implantation of the proximal cannula of the mini-contour into the left atrium. The purse sutures are tightened with additional fixation of the proximal part of the canula by means of separate U-shaped seams with polypropylene filament on Teflon liners along the cannula perimeter and the corresponding sections of the atrioventinal contact and the right upper pulmonary vein. Next, the distal cannula of the mini-contour is implanted in the lateral part of the ascending aorta after formation of an opening corresponding to the diameter of the distal cannula, followed by creation of an end-to-side anastomosis. The pumping element of the mini-contour for auxiliary circulation is placed in the right pleural cavity.

EFFECT: reduced traumatism, prevention of development of continuing bleeding; reduced risk of hemolysis by decreasing the total length of the contour; preservation of the physiological direction of the blood flow, which is especially important for small children with small cardiac output syndrome.

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