目的 探讨超声引导下腔内射频消融结合点剥脱疗法对下肢静脉曲张患者局部血液循环及凝血功能的影响。方法 选取2019年10月—2020年11月收治的90例下肢静脉曲张患者,以随机数字表法分为对照组及观察组,每组45例,对照组行传统大隐静脉高位结扎剥脱、曲张静脉点式剥脱治疗,观察组行超声引导下腔内射频消融结合点剥脱疗法,比较两组治疗结果。结果 两组术前双下肢静脉血流速度差异不显著（P>0.05）,观察组术后1周、2周双下肢静脉血流速度较对照组快（P<0.05）;治疗前,两组凝血酶原时间（PT）、纤维蛋白原（FIB）、凝血活酶（APTT）各指标水平差异不显著（P>0.05）,治疗后,观察组各指标水平与对照组有显著差异（P<0.05）。结论 超声引导下腔内射频消融结合点剥脱疗法在下肢静脉曲张治疗中应用价值较高,可改善下肢静脉血流速度及凝血功能,促进局部血液循环。

Objective To investigate the influence of ultrasound-guided intracavitary radiofrequency ablation combined with point stripping therapy on local blood circulation and coagulation function in patients with lower extremity varicose veins. Methods A total of 90 patients with varicose veins of lower limbs treated from October 2019 to November 2020 were divided into a control group and an observation group by random number table method, with 45 cases in each group. The control group was treated with traditional high ligation and stripping of great saphenous vein and point stripping of varicose vein, and the observation group was treated with ultrasound-guided intracavitary radiofrequency ablation combined with point stripping. The treatment results of the two groups were compared. Results There was no significant difference in venous blood flow velocity of both lower limbs between the two groups before operation （P> 0.05）. The venous blood flow velocity of both lower limbs in the observation group was faster than that in the control group 1 and 2 weeks after operation （P<0.05）. Before treatment, there were no significant differences in the levels of PT, FIB, and APTT between the two groups （P>0.05）. After treatment, there were significant differences in above indicators between the observation group and the control group （P<0.05）. Conclusion Ultrasound-guided intracavitary radiofrequency ablation combined with point stripping therapy has high application value in the treatment of varicose veins of lower limbs. It can improve the blood flow velocity and coagulation function of lower limbs and promote local blood circulation.