Iatrogenic Pseudoaneurysm with Acute Arterial Thrombosis in Multiple Branches of the Lower Limbs Treated by Ultrasound-guided Thrombin Injection: A Case Report.

Introduction: With the development of vascular intervention, pseudoaneurysm complications are increasing. Ultrasound-guided thrombin injection (UGTI) is currently the treatment of choice for pseudoaneurysm, but the pharmacological properties of thrombin may trigger acute thrombosis within the vessel lumen. Despite a very low incidence, this type of primary arterial thrombosis is a serious complication of UGTI, and cases involving multiple branches of the lower limb arteries are particularly rare.

Case Presentation: Here, we report a case of a 65-year-old male who underwent UGTI for the treatment of an iatrogenic pseudoaneurysm of the femoral artery complicated by acute thrombosis of multiple arteries in the lower limbs, and the patient ultimately underwent a successful thrombectomy.

Conclusion: We reviewed the case and analyzed the possible etiologic causes, providing a reference for future clinical work.