摘要目的:评价可转换型腔静脉滤器临床应用的近期疗效、安全性和并发症。方法:回顾性分析2017年5月至2018年5月安置可转换型滤器患者的临床及随访资料。结果:103例滤器均成功置入。27例行滤器转换，26例转换成功（置入后5~145 d转换），所有转换滤器均无血栓形成、移位、倾斜、断裂或穿透静脉壁造成血肿等并发症。未转换原因主要包括年龄（18.4%，19/103）、高危人群的预防（12.6%，13/103）、有限的器官功能（9.7%，10/103）等。94例患者在术后6个月获得随访（91.3%），发现1例滤器内血栓形成，3例下肢静脉血栓加重但无下腔静脉闭塞，全部患者未再出现症状性肺栓塞。结论:可转换型腔静脉滤器可减少围手术期肺栓塞的发生率。年龄、有限的器官功能及高危人群的预防是低转换率的主要原因。

abstractsObjective:To evaluate the short-term efficacy, safety and complications of convertible vena cava filter.Methods:The clinical and follow-up data of 103 patients who were placed with the convertible vena cava filter from May 2017 to May 2018 were retrospectively analyzed.Results:The convertible vena cava filters were successfully implanted in all cases. Twenty-seven cases underwent filter conversion, and 26 cases were successfully converted (5-145 days after implantation). None of them had complications such as thrombus formation, displacement, tilt, fracture or vein wall penetration. The reasons for no conversion included age (18.4%, 19/103), high-risk patients (12.6%, 13/103), limited organ function (9.7%, 10/103), etc. Ninety-four patients (91.3%) were followed up for 6 months. One developed thrombus in the filter, 3 developed lower limb venous thrombosis without inferior vena cava occlusion, and no patients were found with symptomatic pulmonary embolism.Conclusions:The convertible vena cava filter can safely and effectively reduce the incidence of perioperative pulmonary embolism.Age, limited organ function and high-risk of thrombosis are the main reasons for the low conversion rate.