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Related Experiment Videos

Pulmonary embolus after vena cava filter placement.

W David1, W S Gross, E Colaiuta

  • 1Department of Surgical Specialties, Providence Hospital, Southfield, Michigan 48075, USA.

The American Surgeon
|April 6, 1999
PubMed
Summary

Pulmonary embolism (PE) after vena caval filter (VCF) insertion is rare but requires aggressive diagnosis. Both anticoagulation (AC) and a second VCF (VCF-2) show favorable outcomes for PE management in VCF patients.

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Area of Science:

  • Vascular Surgery
  • Interventional Radiology
  • Cardiology

Background:

  • Pulmonary embolism (PE) is a serious complication that can occur after vena caval filter (VCF) placement.
  • Identifying risk factors and establishing a management plan are crucial for patients experiencing PE post-VCF insertion.

Purpose of the Study:

  • To characterize risk factors for PE in patients who underwent VCF insertion.
  • To formulate a diagnostic and therapeutic management plan for PE after VCF placement.

Main Methods:

  • Retrospective review of 318 patients undergoing VCF insertion from 1989 to 1995.
  • Analysis of patients who developed PE post-VCF, including diagnostic venacavography and thrombus measurement.
  • Therapeutic strategies included anticoagulation (AC) or a second VCF (VCF-2) based on thrombus size.

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Main Results:

  • Ten patients (3.1%) developed PE after VCF insertion, with all harboring at least two deep venous thrombosis risk factors.
  • Venacavography confirmed thrombus in all PE patients. Six patients received VCF-2, and four received AC.
  • All AC-treated patients showed thrombus dissolution; no early recurrent PE or significant bleeding occurred. VCF reliability and low complication rates were confirmed.

Conclusions:

  • PE following VCF insertion necessitates an aggressive diagnostic approach including venacavography and risk factor assessment.
  • Both AC and VCF-2 insertion are effective treatments for PE post-VCF.
  • Warfarin therapy is beneficial, and contraindications to AC are often self-limited.