Inferior Vena Cava Filter Thrombosis Associated With a Free-Floating Thrombus on a Retrieval Hook: A Case Report and Literature Review

Abstract

Background: It has been widely reported that IVCFT is a type of thrombotic disease. However, there are very few case reports regarding free-floating thrombi on retrieval hooks.Case presentation: This case report describes inferior vena cava filter thrombosis (IVCFT) associated with a free-floating thrombus on a retrieval hook in a 26-year-old male. Rotational digital subtraction angiography (RDSA) was used for the diagnosis and a second retrievable filter was placed above the original filter to prevent detachment of the thrombi. Catheter-directed thrombolysis (CDT) and aspiration thrombectomy (AT) were used to treat the thrombosis, and both filter retrievals were performed successfully.Conclusions: Attention should be paid to the diagnosis and endovascular procedures of a free-floating thrombus on a retrieval hook. In the event of thrombosis, the therapeutic effect and safety level can be increased through CDT combined with AT.