Gong Maofeng, Jiang Rui, Zhao Boxiang, Kong Jie, Liu Zhengli, Qian Cheng, He Xu, Gu Jianping
Department of Interventional and Vascular Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, P. R. China.
Department of Vascular and Interventional Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, P. R. China.
Ther Adv Chronic Dis. 2023 Sep 21;14:20406223231200254. doi: 10.1177/20406223231200254. eCollection 2023.
Inferior vena cava (IVC) filters are commonly used intravascular devices designed to prevent fatal pulmonary embolism (PE), maintaining the IVC filter as centered as possible is fundamental for achieving its filtration function.
This study aimed to characterize the tilt angles of IVC filter between the vascular access of internal jugular vein (IJV) and femoral vein (FV), as well as to identify factors associated with increased or decreased tilt angles between placement and retrieval.
This is a multicenter retrospective study.
A multicenter retrospective study was conducted from October 2017 to March 2019. The primary outcome was the change in filter tilt between placement and retrieval. The secondary outcome was the identifications of factors associated with increased or decreased tilt angle. Relevant variables were analyzed using tests, tests, exact tests, while multivariate logistic regression analysis was used to determine risk factors.
A total of 184 eligible patients were included in this study. The IJV group had a lower likelihood of tilt angle over 10° at the time of placement compared to the FVs group (0% 12.5%, = 0.040). Among the 171 patients with a mean dwell time of 22.1 days, the IJV group had a higher likelihood of tilt angle over 10° than the FVs group (10.3% 2.3%, = 0.080). The use of FVs access at placement was associated with a higher difference between placement and retrieval filter tilt angles ( < 0.01). Multivariate logistic regression analysis showed that hypertension [odds ratio (OR) 0.668; 95% confidence interval (CI) 0.328-1.358, = 0.265], cardiologic artery disease (OR 0.537; 95% CI 0.136-2.130, = 0.377), cerebral venous disease (OR 0.555; 95% CI 0.186-1.651, = 0.290), filter types (OR 1.624; 95% CI 0.851-3.096, = 0.141), and IVC filter thrombosis (OR 1.634; 95% CI 0.804-3.323, = 0.175) were not associated with increased filter tilt angle. Right side (OR 0.434; 95% CI 0.202-0.930, = 0.032) or bilateral lower extremity deep vein thrombosis (LEDVT) (OR 0.383; 95% CI 0.148-0.995, = 0.049) were identified as protective factors.
IJV access was associated with a lower filter tilt angle at the time of placement, while FVs access was linked to a higher difference between placement and retrieval tilt angles. Right side or bilateral LEDVT were identified as protective factors against increased IVC filter tilt angle.
下腔静脉（IVC）滤器是常用的血管内装置，旨在预防致命性肺栓塞（PE），使IVC滤器尽可能居中对实现其过滤功能至关重要。
本研究旨在描述颈内静脉（IJV）和股静脉（FV）血管入路之间IVC滤器的倾斜角度特征，并确定放置与取出之间倾斜角度增加或减少的相关因素。
这是一项多中心回顾性研究。
于2017年10月至2019年3月进行了一项多中心回顾性研究。主要结局是放置与取出之间滤器倾斜度的变化。次要结局是确定与倾斜角度增加或减少相关的因素。使用检验、检验、确切概率检验分析相关变量，同时采用多因素逻辑回归分析确定危险因素。
本研究共纳入184例符合条件的患者。与FV组相比，IJV组在放置时倾斜角度超过10°的可能性较低（0%对12.5%，P = 0.040）。在平均留置时间为22.1天的171例患者中，IJV组倾斜角度超过10°的可能性高于FV组（10.3%对2.3%，P = 0.080）。放置时使用FV入路与放置和取出滤器倾斜角度之间的差异更大相关（P < 0.01）。多因素逻辑回归分析显示，高血压[比值比（OR）0.668；95%置信区间（CI）0.328 - 1.358，P = 0.265]、心血管疾病（OR 0.537；95% CI 0.136 - 2.
