Inferior vena cava occlusion

Inferior vena cava occlusion can prevent fatal massive embolism or repeated non-fatal embolism. 1. Inferior vena cava ligation is a major disadvantage. For example, the risk of surgery is greater, and venous return after vena cava blockage is reduced, which affects cardiac output and is prone to complications such as lower limb swelling, congestion, and skin ulcers. disease. Therefore, this method is rarely used at present. 2. Inferior vena cava mesh placement or a special umbrella filter is a widely used method at present. The advantages of venous filter placement are that it can prevent fatal embolism caused by large emboli detachment without significantly affecting venous return and fewer complications.