Ultrasound‑enhanced, catheter‑directed thrombolysis for deep vein thrombosis

The procedure

Ultrasound-enhanced, catheter-directed thrombolysis is done using local anaesthesia. Ultrasound waves and a drug are used to break up the clot. The purpose of the ultrasound waves is to help the drug to penetrate into the clot. A small tube (catheter) is inserted into the vein and used to deliver the drug and the ultrasound waves to the clot. Imaging techniques such as X‑rays are used to make sure that the treatment is delivered to the correct place. Treatment continues for 12 to 24 hours, with the tube in place. More imaging is done at regular intervals to check progress before treatment is stopped and standard anticoagulation therapy is started.