METHOD FOR SELECTING TARGET VESSEL FOR STENTING IN MULTIVESSEL CORONARY ARTERY DISEASE IN PATIENTS WITH ISCHEMIC HEART DISEASE Russian patent published in 2024 - IPC A61B5/02 A61B5/21 A61F2/82 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to X-ray surgical diagnostic techniques, cardiovascular surgery. Instantaneous reserve of coronary blood flow is measured, wherein pressure gradients at sites of stenosis of proximal segments of coronary arteries are defined as sum of pressure gradients at sites of stenoses of underlying segments of said arteries, and integral instantaneous reserve of coronary blood flow (iIRF) is determined by proposed formula. If the iIRF value is less than 0.89, the involvement of the coronary bed is determined as significant, and a decision is made on the need for revascularization. Then, functional significance of separate stenoses is assessed taking into account volume of dependent myocardium, for which volume-weighted dependent myocardium instantaneous reserve of coronary blood flow (wIRF) is calculated by the proposed formula. If the value of wIRF is less than 0.89, stenting of this stenosis is performed.

EFFECT: method is effective and safe, enables to select for stenting that artery in the pool of which there is a large volume of myocardium, due to isolated assessment of IRF.

1 cl, 1 ex