Research On The Hemodynamics Of Lower Extremity After High Ligation And Stripping Operation Of Great Saphenous Vein

Objective:To investigate the effects of high ligation and stripping of the great saphenous vein on the early postoperative hemodynamics of the lower extremity venous system in patients with varicose veins,and to assist in evaluating the efficacy of the operation.Methods:The clinical data of 33 patients with varicose veins of the lower extremities admitted to the First Affiliated Hospital of Kunming Medical University from September 2020 to February 2021 were prospectively analyzed.This group of cases used pair matching study before and after operation,using color Doppler to collect the hemodynamic parameters of the same patient before and after the operation(7 days).The specific observational indicators include common femoral vein,superficial femoral vein,popliteal vein,and small saphenous vein,the initial segment of the great saphenous vein,the confluence segment of the great saphenous vein and the posterior tibial vein diameter,blood flow velocity,peak regurgitation and regurgitation time,and statistical analysis of the collected hemodynamic parameters for the purpose of analyzing the hemodynamic changes of the lower extremity venous system before and after the operation of patients with lower extremity varicose veins were systematically studied to evaluate the surgical effect of high ligation and stripping of the great saphenous vein.The above data is statistically analyzed using the spss23.0 software package.According to statistics,the measurement data in this study are non-normally distributed,so the measurement data is expressed as the median(interquartile range),and the difference between groups The non-parametric Mann-Whitney U test was used for the analysis;the qualitative data was expressed by the number of cases(composition ratio),and the test level was set to a=0.05,and the results were statistically significant with P<0.05.Results:1.Analysis of clinical data:(1)Gender distribution:From September 1,2020 to February 28,2021,a total of 33 cases of vascular surgery in the First Affiliated Hospital of Kunming Medical University were included in the study subjects,including 18 males and 15 females Cases,accounting for 55%and 45%respectively;(2)Age distribution:The average age of patients is 47.79±12.47 years old,including 6 cases from 17 to 35 years old,8 cases from 35 to 50 years old,18 cases from 50 to 65 years old,>65 years old 1 case,accounting for 18%,24%,55%,and 3%respectively;(3)Occupational distribution:Among the 33 patients,13 were farmers,6 were civil servants,1 was student,5 were individuals,and 8 were workers,respectively.They were 40%,18%,3%,15%and 24%;(4)Distribution of disease course:16 cases of disease course<10 years,17 cases of disease course>10 years,accounting for 48%and 52%respectively;(5)Distribution of affected limbs:33 Among the patients,26 had the disease on the left lower extremity and 7 had the disease on the right lower extremity.The left lower extremity was significantly more than the right lower extremity.The ratio was about 4:1,accounting for 79%and 21%,respectively.2.Analysis of observation indicators:(1)Vascular diameter changes:the blood vessels of the common femoral vein,superficial femoral vein and posterior tibial vein were narrower than before operation,and the difference was statistically significant(P<0.05);popliteal vein and small saphenous vein The intravascular meridian decreased compared with that before operation,and the difference was not statistically significant(P>0.05).(2)Changes in blood flow velocity:the flow velocity of the common femoral vein,superficial femoral vein,popliteal vein,and small saphenous vein increased faster than before operation,and the difference was statistically significant(P<0.05);the blood flow velocity of the posterior tibial vein decreased compared with that before operation Slow,the difference is statistically significant(P<0.05).(3)Peak value of reflux and reflux time:The above-mentioned peak value of venous reflux velocity and reflux time were shorter than those before operation,and the difference was statistically significant(P<0.05).(4)The thrunk of great saphenous vein was effectively ligated and stripped,and the diameter of blood vessel,blood flow velocity,peak reflux and reflux time all returned to zero,and the difference was statistically significant(P<0.05).Conclusions:Postoperative patients;(1)The blood vessel diameter of common femoral vein,superficial femoral vein,and posterior tibial vein was smaller than before operation;(2)blood flow velocity of common femoral vein,superficial femoral vein,popliteal vein,and small saphenous vein increased faster than before operation The blood flow velocity of the posterior tibial vein is slower than before the operation;(3)The peak value of venous regurgitation and the time of regurgitation are shorter than before the operation;(4)The blood flow signal of the great saphenous vein disappears and the regurgitation is completely eliminated.GSV high ligation and stripping can effectively improve the hemodynamic status of the lower extremity venous system in patients with varicose veins in the early postoperative period,with definite curative effect and clinical value.