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  • Clinical application of ultrasound-guided thrombin injection in treatment of iatrogenic femoral artery pseudoaneurysm

    ObjectiveTo explore the ultrasonic morphological indexes influencing the effectiveness of ultrasound-guided thrombin injection (UGTI) in the treatment of iatrogenic femoral artey pseudoaneury (IFAP).MethodsThe patients with IFAP treated by UGTI in the West China Hospital of Sichuan University from 2015 to 2017 were collected according to the inclusion criteria. The demographic data, comorbidities, clinical symptoms, ultrasonic morphological parameters, thrombin dosage, and postoperative complications were analyzed. The risk factors of technical success of UGTI were analyzed by logistic regression analysis. The technical success was defined as absence of flow within the FAP immediately after UGTI. ResultsA total of 53 patients who met the criteria of inclusion were included in this study. The technical and treatment success rates of UGTI were 84.9% (45/53) and 96.2% (51/53), respectively. No deep venous thrombosis, arterial thromboembolism, infection, bleeding, allergy, and other complications or death occurred in all patients. There were no statistical differences in the age, clinical symptoms, comorbidities (except hypertension, P=0.040), ultrasonic morphological parameters (except femoral artery diameter, P<0.001), and thrombin dosage between the patients with technical success and failure (P>0.05). Multivariate logistic regression analysis showed that the smaller femoral artery diameter was the risk factor of the technical failure [OR=0.350, 95%CI (0.165, 0.743), P=0.006]. Further adjustment of thebaseline data of patients (excluding patients with hypertension), the logistic regression analysis still found that smaller femoral artery diameter was the risk factor of the technical failure [OR=0.419, 95%CI (0.205, 0.860), P=0.018].ConclusionsUGTI in treatment of IFAP is minimally invasive and has a higher technical success rate. Smaller femoral artery diameter might affect technical success rate of UGTI.

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