ARTICLE IN PRESS G Model Arch Bronconeumol. 2017;xxx(xx):xxx–xxx www.archbronconeumol.org Original Article Success in Optional Vena Cava Filter Retrieval. An Analysis of 246 Patients  Miguel A. de Gregorio, a,b José A. Guirola, a,b Carol Serrano, a,b Ana Figueredo, a,b William T. Kuo, c Carlos Andrés Quezada, d David Jimenez d,∗ a Grupo de Investigación en Técnicas Mínimamente Invasivas (GITMI), Universidad de Zaragoza, Hospital Clínico Lozano Blesa, Zaragoza, Spain b Servicio de Neumología, Hospital Miguel Servet, Zaragoza, Spain c Division of Vascular and Interventional Radiology, Department of Radiology, Stanford University Medical Center, Standford, CA, United States d Servicio de Neumología, Hospital Ramón y Cajal, Universidad de Alcalá (IRYCIS), Alcalá de Henares, Spain a r t i c l e i n f o Article history: Received 9 November 2017 Accepted 6 February 2018 Available online xxx Keywords: Pulmonary embolism Inferior vena cava filter Retrieval Complications a b s t r a c t Objective: This study assessed vena cava filter (VCF) retrieval rates and factors associated with retrieval failure in a single center cohort. Methods: We conducted an observational retrospective cohort study. The primary endpoint was the percentage of patients whose VCF was retrieved. We performed logistic regression to identify variables associated with retrieval failure. Results: During the study period, 246 patients received a VCF and met the eligibility requirements to be included in the study; 151 (61%) patients received a VCF due to contraindication to anticoagulation, 69 (28%) patients had venous thromboembolism (VTE) and a high risk of recurrence, and 26 (11%) patients received a filter due to recurrent VTE while on anticoagulant therapy. Of 236 patients who survived the first month after diagnosis of VTE, VCF was retrieved in 96%. Retrieval rates were significantly lower for patients with recurrent VTE while on anticoagulation, compared with patients with contraindication to anticoagulation or patients with a high risk of recurrence (79% vs 97% vs 100%, respectively; P<0.01). Mean time to retrieval attempt was significantly associated with retrieval failure (137.8±65.3 vs 46.3±123.1 days, P<0.001). Conclusions: In this single center study, VCF retrieval success was 96%. A delay in the attempt to retrieve the VCF correlated significantly with retrieval failure. © 2018 SEPAR. Published by Elsevier España, S.L.U. All rights reserved. Éxito en la recuperación de filtro de vena cava inferior opcional: Análisis de 246 pacientes Palabras clave: Tromboembolia de pulmón Filtros de vena cava Retirada Complicaciones r e s u m e n Objetivo: El objetivo de este estudio fue calcular el porcentaje de filtros de vena cava inferior (FVCI) opcionales finalmente recuperados y las variables asociadas a la imposibilidad para su recuperación en una cohorte de pacientes con enfermedad tromboembólica venosa (ETEV). Métodos: Se realizó un estudio observacional retrospectivo. La variable principal fue el porcentaje de FVCI recuperables finalmente extraídos. Se realizó regresión logística para identificar las variables asociadas al fracaso de la recuperación del FVCI.  Please cite this article as: de Gregorio MA, Guirola JA, Serrano C, Figueredo A, Kuo WT, Quezada CA, et al. Éxito en la recuperación de filtro de vena cava inferior opcional: Análisis de 246 pacientes. Arch Bronconeumol. 2018. https://doi.org/10.1016/j.arbres.2018.02.008 ∗ Corresponding author. E-mail address: djimenez.hrc@gmail.com (D. Jimenez). 1579-2129/© 2018 SEPAR. Published by Elsevier España, S.L.U. All rights reserved. ARBR-1851; No. of Pages 7