title: Usefulness of a second temporary vena cava filter for preventing acute pulmonary thromboembolism.
abstract: The usefulness of a temporary inferior vena cava filter (t-IVC-f) for the prevention of acute pulmonary thromboembolism (APTE) associated with venous thromboembolism (VTE) has been established, but not the requirement for an additional therapeutic method when the t-IVC-f has captured a thrombus. A woman underwent implantation of a t-IVC-f just caudal to the bifurcation of the renal vein immediately before cesarean section (C/S) for VTE that had occurred during the third trimester of pregnancy. After receiving a combination of anticoagulant and fibrinolytic therapies after the C/S, the t-IVC-f was found to contain a thrombus and in order to prevent its dissemination during the removal of the closed filter, another filter was inserted and expanded proximal to the first. Insertion of an additional t-IVC-f may prevent occurrence of APTE during removal of the primary filter containing a friable thrombus after fibrinolytic therapy, and the technique proved useful in the present case of VTE during pregnancy.
authors.affiliation: Department of Cardiology, National Tokyo Medical Center, Japan. ishikawa@jikei.ac.jp
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Ishikawa
authors.forename: Teruo
authors.initials: T
authors.lastname: Okabe
authors.forename: Kazuo
authors.initials: K
authors.lastname: Ogawa
authors.forename: Jun
authors.initials: J
authors.lastname: Fuse
authors.forename: Yoko
authors.initials: Y
authors.lastname: Oshiba
authors.forename: Akira
authors.initials: A
authors.lastname: Ono
authors.forename: Masao
authors.initials: M
authors.lastname: Chino
mesh_terms: D000208:Acute Disease; D000328:Adult; D005260:Female; D005268:Femoral Vein / Q000000981:diagnostic imaging; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging; D010690:Phlebography; D011247:Pregnancy; D011249:Pregnancy Complications, Cardiovascular / Q000175:diagnosis / Q000601:surgery*; D011655:Pulmonary Embolism / Q000517:prevention & control*; D011877:Radionuclide Imaging; D012086:Reoperation; D013923:Thromboembolism / Q000175:diagnosis / Q000601:surgery*; D016306:Vena Cava Filters; D020246:Venous Thrombosis / Q000175:diagnosis / Q000601:surgery*