In general, the risk of placing filters in the veins of the lower extremities is very low, but some of them may be ruptured by vascular injury and aggravate the thrombosis situation.
1. Rupture of blood vessel damage: For lower extremity venous thrombosis or localized stenosis, venous filter implantation can be performed to prevent embolus dislodgement leading to pulmonary embolism, myocardial infarction, etc. However, the placement process may damage the lower extremity venous vessels and may also cause the fixed end of the filter to cut the blood vessel, resulting in thrombosis. However, the placement process can damage the venous blood vessels of the lower extremities, and the fixed end of the filter may also cut the blood vessels, resulting in the occurrence of such situations.
2. Aggravating the risk of thrombosis: Although the main purpose of placing a filter in the veins of the lower extremities is to net out venous emboli, when more emboli are netted out, it can also cause mechanical obstruction due to thrombosis at the filter, which can aggravate the condition.
There is also a risk of infection and bleeding when placing a mesh in the veins of the lower extremities. Therefore, this procedure should be performed by a specialized physician, and any discomfort should be treated in a timely manner.