• Nuri Havan.
• Department of Radiology, Atasehir Florance Nightingale Hospital, Küçükbakkalköy, Işıklar Cd. No: 35/A, 34750, Ataşehir/Istanbul, Turkey. nurihavan1@outlook.com.
• Ir J Med Sci. 2024 Jun 1; 193 (3): 153915441539-1544.

BackgroundFemoral pseudoaneursysm treatment is still controversial.AimsThe aim of this study was to evaluate the anatomic features related to femoral pseudoaneurysm (FPA) closure failure for ultrasound-guided compression (USGC).MethodsThis was a single-center, prospective, cohort study. FPA patients admitted to the radiology department for USGC were included in the study. Age, sex, duration of FPA, thrombosis, ratio of thrombosis to FPA diameter, feeding artery, tortiosity, connection properties, length and width of the neck, volume, and fistula-to-common femoral artery (CFA) speed ratio were reported during color Doppler ultrasonography (CDUS) scanning.ResultsThe study was completed with 192 patients. FPA compression therapy was successful in 155 patients and failed in 37 patients. FPA without a narrow connection (p < 0.001), FPA without existing thrombosis (p < 0.001), a lower thrombosis ratio (p < 0.001), a longer duration of FPA (p = 0.035), a shorter neck length, a wider neck width (p < 0.001), and a higher fistula-to-CFA speed rate (p < 0.001) were related to FPA closure failure with USGC. ROC analysis of the fistula-to-CFA speed ratio showed that a ratio of 1.01 had 47% sensitivity and 63% specificity for USGC treatment failure (AUC, 0.72; p < 0.05).ConclusionsFailure of FPA closure with USGC is closely related to anatomic features of FPA. Evaluating the anatomical features of FPA before deciding the treatment method can be beneficial for patients and clinicians.© 2023. The Author(s), under exclusive licence to Royal Academy of Medicine in Ireland.

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