METHOD FOR RECONSTRUCTION OF OUTFLOW TRACT FROM RIGHT VENTRICLE WITH STENOSIS AND CALCINOSIS OF PREVIOUSLY IMPLANTED ARTIFICIAL PULMONARY ARTERY TRUNK Russian patent published in 2018 - IPC A61B17/00 

FIELD: medicine.

SUBSTANCE: when subtotal cardiolysis is performed, a site in the right ventricular (RV) inflow and a pulmonary artery (PA) region are additionally allocated to form anastomoses. Anastomoses are formed between the RV, the PA and the implanted prosthesis. A prosthesis is used with diameter corresponding to the size of the aortic-caval gap. A longitudinal incision corresponding to the diameter of the implanted prosthesis, between the superior vena cava and the aorta, is used to open the right PA. A distal anastomosis is formed between the implanted prosthesis and the right PA by the end-to-side type. Further, the RV is opened in the inflow section in the avascular zone and proximal anastomosis is formed between the other end of the implanted prosthesis and the RV. An additional outlet from the RV is created by means of the second prosthesis. In addition, at the cardiolysis stage, there is no need for complete isolation of the calcified conduit, and only the site in the inflow part of the RV and the PA section for anastomoses formation are allocated. At the reconstruction stage, the RV outflow tracts are formed with unaltered walls of the RV and PA that have not undergone calcinosis.

EFFECT: method allows to form an additional outflow tract from the right ventricle with an adequate hemodynamic effect provided that the risks of operational complications are reduced.

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