• 1. Day Surgery Center, West China Hospital, Sichuan University, Chengdu 610041, P. R China;
  • 2. Division of Vascular Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu 610041, P. R. China;
ZHAO Jichun, Email: mayukui@scu.edu.cn
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Objective To understand the characteristics of patients who have undergone the removal of the inferior vena cava (IVC) filter so as to provide a reference for optimizing the clinical application strategy of IVC filters. Method The demographic and clinical characteristics of patients underwent IVC filter removal in the Department of Vascular Surgery of West China Hospital, Sichuan University from December 2016 to December 2023 were retrospectively collected. Results A total of 102 patients were enrolled, including 48(47.1%) males and 54(52.9%) females. The age of the patients was (46.75±16.72) years old, and 75(73.5%) patients were aged between 20 and 59 years old. The proportion of patients who had an IVC filter placed due to concurrent central deep vein thrombosis was the highest, accounting for 48.0% (49/102). Among them, 72(70.6%) patients had the filter removed within 90 d, and 6(5.9%) patients had the filter removed after more than one year. The median duration of filter placement for all patients was 35 d (ranging from 5 to 7 300 d). The filter was removed via interventional method in 91(89.2%) patients, and via open surgery in 10(9.8%) patients. In 1(1.0%) patient failed by endovascular retrieval and followed-up observation. Compared with the interventional treatment, patients who had the filter removed by open surgery had a longer placement time of the filter in the body (median: 32.5 d vs. 136.5 d, P=0.002). Conclusions From the analysis results of this cases data, patients with IVC filters don’t show obvious gender characteristics. The majority of them are young and middle-aged, and interventional method is mostly used for the removal of IVC filters. Patients who use open surgery to remove the filter have a longer placement time in the IVC, suggesting the necessity of early removal of the IVC filter.

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