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  • Title: Prophylactic inferior vena cava filters for operative pelvic fractures: a twelve year experience.
    Author: Cohen-Levy WB, Liu J, Sen M, Teperman SH, Stone ME.
    Journal: Int Orthop; 2019 Dec; 43(12):2831-2838. PubMed ID: 31392493.
    Abstract:
    INTRODUCTION: Conflicting evidence exists regarding the role of inferior vena cava filters (IVCFs) in the prevention of pulmonary embolism. The aim of this study was to review an institutional policy of prophylactic IVCF placement in all operative pelvic and acetabular fractures as a means of preventing PE by comparing it to a historical prepolicy period of significantly less aggressive IVCF placement. METHODS: The trauma registry of a single level 1 trauma center was retrospectively queried for all pelvic or acetabular fractures for the prepolicy and intervention periods as defined as January 2003-December 2008 and January 2009-December 2014, respectively-yielding 231 patients for analysis. The primary and secondary outcomes measured were the incidence of PE and deep vein thrombosis. RESULTS: The rate of prophylactic IVCF insertion significantly increased during the study period (p < 0.001). The incidence of pulmonary embolism (1.8% vs. 5.1%, p = 0.351) and DVT (19.3% vs. 10.3%, p = 0.231) were not significantly different when comparing the prepolicy and intervention cohorts. In patients with operative fractures, a nonsignificant trend of increasing incidence of DVTs was appreciated in patients with a prophylactic IVCF versus those without prophylactic IVCF (13 vs. 2, p = 0.222). DISCUSSION: A policy of increased use of prophylactic IVCFs in patients with operative pelvic and acetabular fractures failed to reduce the incidence of PE or DVT. In contrast, several case reports and institutional series have published several risks associated with IVCF placement including failure to retrieve temporary IVCF. CONCLUSION: The benefit of prophylactic IVCF in this patient population is unclear.
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