• Yadong Shi, Wanyin Shi, Liang Chen, and Jianping Gu.
• The Department of Interventional Radiology, Nanjing First Hospital, Nanjing Medical University, No. 68 Changle Road, Nanjing, 210006, China.
• J. Thromb. Thrombolysis. 2018 Apr 1; 45 (3): 440-451.

AbstractTo review the clinical evidence for ultrasound-accelerated catheter-directed thrombolysis (UACDT) using the EKOS system in the treatment of deep vein thrombosis (DVT) in terms of case selection, procedural outcomes, clinical outcomes and safety outcomes. A systematic literature search strategy was used to identify the use of the EKOS system in the treatment of DVT using the following electronic databases: MEDLINE, EMBASE, the Cochrane databases and the Web of Science. The references in the relevant literature were also screened. Our literature search identified a total of 16 unique clinical studies. Twelve of the sixteen studies were retrospective case series studies. To date, only one randomised controlled trial (RCT) is available. Overall, UACDT using the EKOS system was performed 548 times in 512 patients. Among all cases, 77-100% achieved substantial lysis (> 50%) based on the different definitions of the individual studies. This treatment modality appears to be safe, as there were no reported procedure-related pulmonary embolisms (PE) and only one procedure-related death was reported. Bleeding events were reported in 14 of the 16 studies, and 3.9% (20/512) of the cases of bleeding were considered major. During the follow-up, post-thrombotic syndrome was observed in 17.1% (20/117) of cases. UACDT using the EKOS system is an effective, safe and promising treatment modality for DVT, but the existing clinical evidence is inadequate to make UACDT using the EKOS system the first-line choice for DVT. Additional prospective large-sample RCTs with long-term follow-ups are warranted to define the role of UACDT using the EKOS system in the treatment of DVT.

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