How many days is catheter-directed thrombolysis typically performed for lower limbs?

Under normal circumstances, catheter-directed thrombolysis for the lower limbs usually takes about 3 to 7 days, and the associated risks are relatively small. The details are as follows:

Catheter-directed thrombolysis is a procedure used to treat conditions such as lower limb swelling or ischemic limb pain caused by venous or arterial thrombosis due to various reasons. It involves placing a catheter directly at or near the site of the clot and delivering thrombolytic medications—such as recombinant human prourokinase for injection or recombinant streptokinase for injection—through the catheter to dissolve the clot and restore blood flow. This treatment is widely available and serves as an alternative therapy for patients with significant symptoms beyond anticoagulation alone. The goals of treatment include reducing pain and lower limb edema, as well as preserving venous valve function. After the procedure, patients are primarily advised bed rest, and the length of hospitalization depends on the time required for clot removal. Fresh clots can typically be cleared within 3 to 7 days with aggressive treatment. However, if the patient delays seeking medical care, the treatment duration and hospital stay will be prolonged.

If a patient experiences symptoms such as lower limb swelling or ischemic limb pain, it is recommended to seek medical evaluation and treatment at a正规 medical facility as early as possible.