Hemodynamic changes of arteries in disobliterated zones by means of different types of endarterectomy in long-term postoperative period

Abstract

107 patients with chronic critical ischemia of the lower limbs were examined and divided into 2 groups depending on the type of disobliteration. In the late postoperative period, in both groups, the index of retardation of the parietal blood flow, the degree of restenosis of the common femoral artery in its desobliterated zone, changes in blood flow velocities were determined. The difference between the PSV of the blood flow both along the central axis and the posterior wall of the artery remains significant during the first year of observation in the main group and in the comparison group. In the next 3 years, these indicators tend to equalize and to mark the 5-year observation are not significantly different from each other. In the comparison group, rates and degree of restenosis were higher than in the main group at the 1st and 3rd year of follow-up, on average by 7% annually. Hemodynamic changes in the zones of hydraulic disobliteration indicate a more laminar type of blood flow and a slower rate of progression of stenosis after its application than in the group of open endarterectomy.