PURPOSE Assess the safety of inferior vena cava (IVC) filter retrieval in patients taking anticoagulation, compared to a non-anticoagulated cohort. MATERIALS AND METHODS Single-centre retrospective analysis of patients who underwent IVC filter retrieval between January 2012 and February 2018. Information about patient demographics, anticoagulation, tilt, major and minor complications was collected. Major complications were defined as: IVC injury from the filter retrieval, retained fragment of filter, filter fracture and filter embolisation. Minor complications were defined as: neck haematoma and puncture site infection. RESULTS Total of 357 patients (age 18-95, Male: 231) underwent IVC filter retrieval, comprising of Cook Celect Platinum, Cook Celect, and ALN-branded filters. Of these 182 patients were on anticoagulation and 175 patients were not on anticoagulation, based on the indication for the filter (thrombosis or prophylaxis) and at the discretion of the referring unit who were managing the anticoagulation. IVC filter retrieval was technically successful in 349 patients. Five major complications (1.4% of retrievals) were recorded and no minor complications (0% of retrievals). In the anticoagulation cohort, there were two major complications (1.1% of retrievals) both related to IVC injury. In the non-anticoagulated cohort, there were three major complications (1.7% of retrievals) relating to filter embolisation, IVC injury, and filter fracture. CONCLUSIONS IVC filter retrieval is a safe procedure with a low complication rate. Being on anticoagulation does not increase the risk of a major complication or change the management of major complication compared with a non-anticoagulated cohort. IVC filter retrieval is safe to perform in patients currently taking prophylactic or therapeutic anticoagulation based on our cohort. LEVEL OF EVIDENCE Level 3, retrospective cohort study.

中文翻译：

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下腔静脉滤器检索过程中持续治疗性抗凝的安全性：第三中心的6年回顾性回顾。

目的与非抗凝组相比，评估接受抗凝治疗的患者下腔静脉（IVC）滤器取回的安全性。材料与方法对2012年1月至2018年2月间接受IVC滤过器取出术的患者进行单中心回顾性分析。收集了有关患者人口统计学，抗凝，倾斜，主要和次要并发症的信息。主要并发症定义为：滤网取回引起的IVC损伤，滤网残留碎片，滤网断裂和滤网栓塞。次要并发症定义为：颈部血肿和穿刺部位感染。结果共有357例患者（年龄18-95，男：231）接受了IVC过滤器取出，包括Cook Celect Platinum，Cook Celect和ALN品牌过滤器。根据过滤器的适应症（血栓形成或预防措施）以及管理抗凝治疗的转诊单位的判断，这182例患者接受抗凝治疗，而175例未接受抗凝治疗。从技术上讲，IVC过滤器检索在349例患者中取得了成功。记录到五种主要并发症（占检索的1.4％），无小并发症（占检索的0％）。在抗凝队列中，有两个主要并发症（占取回率的1.1％）均与IVC损伤有关。在非抗凝队列中，存在三项主要并发症（占取回率的1.7％），与滤器栓塞，IVC损伤和滤器破裂有关。结论IVC过滤器检索是一种安全的方法，并发症发生率低。与未进行抗凝治疗的人群相比，接受抗凝治疗不会增加发生重大并发症的风险或改变重大并发症的管理。根据我们的队列，IVC滤器取回在目前正在接受预防性或治疗性抗凝治疗的患者中是安全的。证据水平3级，回顾性队列研究。