RHEOLOGICAL THROMBUS EXTRACTION IN POSTOPERATIVE THROMBOSIS OF THE POPLITEAL-TIBIAL SEGMENT AFTER ENDOVASCULAR METHODS OF REVASCULARIZATION

Abstract

Introduction. The use of endovascular methods of revascularization of the atherosclerotic stenotic-occlusive process of the femoral-distal arterial bed leads in 1/4 of the primary surgical interventions to the need for repeated surgical intervention, in 6-32% of cases it is complicated by the development of thrombosis of the reconstruction segment, restenosis of the surgical intervention segment [6, 7]. Aim. The main goal of the study was to improve the results of endovascular methods of revascularization of multi-level stenotic-occlusive femoral-distal arterial bed by performing rheological thrombus extraction with the Angiojet system in postoperative thrombosis of the popliteal-tibial segment. Materials and methods. 164 patients with multilevel stenotic-occlusive atherosclerotic lesions of the femoral-distal arterial bed were under observation. Thrombosis of the popliteal segment was diagnosed in 17 (73.9%) cases in patients with endovascular angioplasty of one of the tibial arteries, in 6 (26.1%) cases with endovascular angioplasty of two arteries of the tibial segment. Surgical treatment of thrombosis of the popliteal segment was performed by the method of minimally invasive rheological thrombus extraction using the Angiojet device (Possies, USA). Results. A patient with a multilevel stenotic-occlusive process of the femoral-distal arterial bed at clinical stage 3 (according to WIFI classification) had a two-level endovascular angioplasty of the infrainguinal arterial channel. Rheological thrombus extraction from the popliteal-tibial segment using the Angiojet system was used in 14 (60.9%) patients who underwent two-level endovascular angioplasty of the femoral-distal arterial bed. Rheological thrombus extraction from the popliteal-tibial segment with the Angiojet system was used in 9 (34.8%) patients who underwent revascularization of the infrainguinal arterial bed by the hybrid revascularization method. Conclusions. 1. Endovascular methods of revascularization of multilevel stenotic-occlusive femoral-distal arterial bed are complicated in 14.0% of observations by the development of postoperative thrombosis of the popliteal-tibial segment. The effectiveness of the application of rheological thrombus extraction by the Angiojet system of postoperative thrombosis from the popliteal-tibial segment after endovascular methods of revascularization of multilevel stenotic-occlusive femoral-distal arterial bed is at the level of 82.6%.

Keywords

• rheological thrombus extraction system
• thrombosis
• revascularization
• angioplasty