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Updated: Sep 12, 2026

A Multicenter MRI Protocol for the Evaluation and Quantification of Deep Vein Thrombosis
Published on: June 2, 2015
Trellis thrombectomy system for the treatment of iliofemoral deep venous thrombosis
Venkatesh Ramaiah1, Peter B Del Santo, Julio A Rodriguez-Lopez
1Department of Cardiovascular and Endovascular Surgery, Arizona Heart Institute and Hospital, Phoenix, Arizona 85006, USA. vramaiah@azheart.com
Purpose:
To describe the use of a new percutaneous mechanical thrombectomy device to clear thrombus from the iliofemoral vein.
Case Report:
A 52-year-old woman with non-Hodgkin's lymphoma presented to the emergency room with a posterior tibial vein deep vein thrombosis and a greater saphenous vein thrombosis. Heparin therapy caused the clot to propagate into the iliofemoral vein. Catheter-directed thrombolysis for 36 hours with 24 units of reteplase failed to clear the clot. The Trellis Thrombectomy System, a new percutaneous mechanical thrombectomy device, was used to deliver a low dose of reteplase into the clot. Complete clot lysis was achieved in 45 minutes using only 5 units of reteplase. The patient's symptoms resolved completely, and she continues to be asymptomatic at 6 months with no evidence of residual clot on duplex scans.
Conclusions:
The Trellis device may be used to rapidly clear thrombus from the iliofemoral vein with a low dose of thrombolytic agent.
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