METHOD OF ENDOVASCULAR TREATMENT OF THROMBOTIC OCCLUSION OF AUTOVENOUS AORTOCORONARY BYPASS GRAFTS IN PATIENTS WITH ACUTE ST SEGMENT ELEVATION MYOCARDIAL INFARCTION Russian patent published in 2023 - IPC A61M25/01 A61B17/22 A61F2/82 

FIELD: medicine; X-ray endovascular diagnostics; treatment; cardiology.

SUBSTANCE: procedure is performed in patients with acute myocardial infarction with ST segment elevation, including the installation of a guide catheter at the mouth of the shunt. A 0.014 inch coronary guidewire is advanced to the distal bypass coronary artery and baseline blood flow is assessed. In the absence of contrast enhancement of the shunt or if massive thrombosis of the shunt is detected, the guiding catheter is intubated 20 mm into the lumen of the shunt and three times aspiration from the guiding catheter is performed with a 20 ml syringe. Then the cycles of advancing the guiding catheter by 20 mm and triple aspiration continue until the guiding catheter reaches the distal shunt. After that, the guiding catheter is removed, control aspiration is performed from the catheter, the shunt is contrasted, and the area of residual stenosis is stented.

EFFECT: method allows to reduce the risk of hemorrhagic complications, to simplify the method of endovascular treatment of thrombotic occlusion of the arteriovenous shunt.

1 cl, 5 dwg, 1 ex