# Extensive Iliocaval Deep Vein Thrombosis Provoked by Coronavirus Disease 2019 (COVID-19) in the Setting of an Inferior Vena Cava Filter

## TL;DR

A 38-year-old woman with an inferior vena cava filter developed severe blood clots in her legs and vein due to COVID-19, highlighting risks of using such filters during the infection.

## Contribution

This case highlights the rare but serious risk of IVCF-related thrombosis in patients with symptomatic COVID-19.

## Key findings

- A patient with an IVCF developed extensive DVT and IVC thrombosis during a symptomatic COVID-19 infection.
- The IVCF was successfully retrieved after treatment and recovery from the infection.
- The case underscores the potential complications of using IVCFs in the context of COVID-19.

## Abstract

Thrombotic events are well-known complications of coronavirus disease 2019 (COVID-19). Inferior vena cava filters (IVCF) are devices used to prevent pulmonary embolism (PE) and also increase the risk of thrombotic complications. Here, we describe the case of a 38-year-old female with extensive bilateral lower extremity deep vein thrombosis (DVT) and thrombosis of the infrarenal inferior vena cava (IVC) in the setting of an IVCF and symptomatic COVID-19. The IVCF had been placed a few months prior for a left femoral DVT and PE after spinal surgery. This patient was treated with pharmacomechanical thrombectomy and ultrasound-assisted thrombolysis followed by angioplasty and anticoagulation. The IVCF was retrieved after confirming there was no residual DVT when the patient recovered from COVID-19 infection. This case of a rare combination of IVCF-related thrombosis secondary to COVID-19 highlights the potential pitfalls of IVCF in this situation.