FIELD: medicine.
SUBSTANCE: longitudinal section of the right ventricular outflow (RVO) is performed to the middle of the anterior third of the fibrous pulmonary valve ring (PFR). Then, a longitudinal section of the pulmonary artery (PA) is performed to the middle of the anterior third of the PFR. Next, the front third of the PFR is skeletonized and separated from the right ventricular myocardium and the PA trunk wall, connecting the previously performed incisions. The infundibular stenosis is excised. A xenopericardial patch is sewn into the edges of the right ventricle cuts and the PA trunk using a continuous suture. At that, an additional exit from the right ventricle to the PA trunk is made between the patch and the PFR front wall.
EFFECT: method allows to prevent the development of pulmonary valve insufficiency, the development of right ventricular dysfunction by maintaining the integrity of the fibrotic pulmonary valve ring, the integrity of the pulmonary artery valve leaflets and, accordingly, their functions; to ensure further growth of the pulmonary artery valve with preservation of its functionality in the long-term period with operative correction of Fallot's tetralogy.
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