Pharmacomechanical thrombolysis refers to catheter-directed thrombolysis combined with a mechanical catheter technique. In addition to the thrombectomy mode, the AngioJet® system (Boston Scientific, USA) enables a high-pressure intraclot injection of thrombolytic agents (PowerPulse® technique). Ultrasound-assisted thrombolysis is another type of pharmacomechanical thrombolysis which aims to accelerate thrombolysis success. It consists of a thrombolysis catheter with a microsonic core wire that uses high-frequency low-power ultrasound waves (EKOS Corporation; Bothell, WA, USA).