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[Vena cava filter].

T Helmberger1

  • 1Institut für Diagnostische und Interventionelle Radiologie und Nuklearmedizin, Klinikum Bogenhausen, Englschalkinger Strasse 77, 81925, München, Germany. thomas.helmberger@kh-bogenhausen.de

Der Radiologe
|April 26, 2007
PubMed
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Fulminant pulmonary embolism (PE) is a significant cause of death. Vena cava filters offer a potential treatment when anticoagulation fails, reducing PE risk but carrying a risk of filter-induced thrombosis.

Area of Science:

  • Cardiovascular Medicine
  • Interventional Radiology

Background:

  • Fulminant pulmonary embolism (PE) is a leading cause of mortality.
  • Deep leg and pelvic venous thrombosis are common precursors to PE.
  • Anticoagulant/thrombotic therapy may be insufficient or contraindicated in some PE cases.

Purpose of the Study:

  • To evaluate the efficacy and risks of vena cava filter implantation for patients with threatening embolism.
  • To assess the current evidence base for indications of vena cava filter use.

Main Methods:

  • Review of existing data on vena cava filter implantation for pulmonary embolism.
  • Analysis of reported outcomes including thromboembolism risk reduction, recurrence rates, and filter-induced complications.

Main Results:

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  • Vena cava filters demonstrate an approximate 30% reduction in thromboembolism risk.
  • Filter use is associated with a nearly 5% recurrence rate and a 1% rate of fatal PE.
  • A significant risk of up to 20% for filter-induced vena cava thrombosis exists.

Conclusions:

  • Vena cava filter implantation is a viable option for PE when other treatments fail.
  • The indications for filter placement require further research due to limited data.
  • The benefits of reduced PE risk must be weighed against the risk of vena cava thrombosis.