Related Experiment Video
Updated: May 6, 2026

Autologous Endothelial Progenitor Cell-Seeding Technology and Biocompatibility Testing For Cardiovascular Devices in Large Animal Model
Published on: September 9, 2011
Vena Tech LGM filter retrieval 16 years after implantation: piecemeal removal by intentional mechanical fracture
William T Kuo1, Steven E Deso, Scott W Robertson
1Division of Vascular and Interventional Radiology, Department of Radiology, Stanford University Medical Center, 300 Pasteur Dr., H-3651, Stanford, CA 94305-5642.
Abstract:
A 48-year-old man presented with symptomatic inferior vena cava (IVC) occlusion from a chronically thrombosed and embedded Vena Tech LGM filter resulting in exercise intolerance from diminished cardiac preload and postthrombotic syndrome from chronic venous insufficiency. The patient was treated using a new PRIME technique--Piecemeal Removal by Intentional MEchanical fracture--to achieve successful filter retrieval 16 years after implantation. Removal of the obstructing filter permitted endovascular IVC recanalization with restoration of venous outflow and alleviation of venous obstructive symptoms. Cardiac preload was restored, allowing the patient to resume long-distance running, and he successfully completed a half-marathon 3 months after treatment.
Related Concept Videos
Hemodialysis I: Introduction
Venous Thrombosis III: Interprofessional Care

