机械性血栓清除术治疗下腔静脉滤器相关血栓的疗效评价

目的:评价机械性血栓清除术(PMT)治疗下腔静脉滤器相关血栓的临床有效性及安全性。方法:回顾性分析2017年1月一2019年3月14例下腔静脉滤器置入术后12~14d出现下腔静脉滤器相关血栓的患者,比较PMT前后红细胞及肾功能变化,有无症状性肺栓塞以及PMT的血栓清除效果,是否成功回收滤器及有无下腔静脉损伤。结果:PMT前后红细胞及肾功能水平改变无统计学意义,均无症状性肺栓塞发生,PMT后血栓清除Ⅲ级12例(85.71%),Ⅱ级2例(14.29%)联合应用CDT治疗后血栓清除达Ⅲ级,所有患者均成功回收滤器,无下腔静脉损伤发生。结论:PMT可安全、有效的清除下腔静脉滤器相关血栓,从而提高滤器回收的成功率。

The effect of percutaneous mechanical thrombectomy in patients with inferior vena cava filter-related thrombosis

Objective:To evaluate the clinical efficacy and safety of mechanical thrombectomy(PMT)in the treatment of inferior vena cava filter-related thrombosis.Methods:A total of 14 patients with inferior vena cava filter-related thrombosis were included in the study from January 2017 to March 2019 retrospectively.Inferior vena cava filters had been implanted i all patients from 12 to 14 days.Data including the changes of hemoglobin and renal function,asymptomatic pulmonary em-bolism,the grade of thrombolytic clearance rate,successful recovery of filter and injury of inferior vena cava were compared.Results:There was no signifcant difference in the level of hemoglobin and renal function before and after PMT.No symp-tomatic pulmonary embolism occurred.Twelve patients(85.71%)had grade Ⅲ and two patients(14.29%)had grade Ⅱ thrombus clearance after PMT,combined CDT treatment the thrombus clearance reached grade Ⅲ.All patients successfully recovered filters without inferior vena cava injury.Conclusions:PMT is an effective and safe treatment method in patients with inferior vena cava filter-related thrombosis,thereby the success rate of filter recovery can be improved.