Association between the degree of iliac venous outflow obstruction by intravascular ultrasound and lower limb venous reflux

The present study aims to evaluate the association between the degree of iliac venous outflow obstruction (IVOO) identified by intravascular ultrasound (IVUS) and venous reflux presentation in the lower limbs on duplex ultrasound (DU). Patients with bilateral chronic venous insufficiency, CEAP (clin...

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Bibliographic Details
Published in:Journal of vascular surgery. Venous and lymphatic disorders (New York, NY) NY), 2023-09, Vol.11 (5), p.1004-1013.e1
Main Authors: Metzger, Patrick Bastos, Rossi, Fabio Henrique, Fernandez, Miguel Godeiro, de Carvalho, Sarah Fernandez Coutinho, Metzger, Simone Lessa, Izukawa, Nilo Mitsuru, Kambara, Antonio Massamitsu, Thorpe, Patricia
Format: Article
Language:English
Subjects:
Duplex ultrasound
Iliac vein
Intravascular ultrasound
Lower limbs
Venous reflux
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Summary:The present study aims to evaluate the association between the degree of iliac venous outflow obstruction (IVOO) identified by intravascular ultrasound (IVUS) and venous reflux presentation in the lower limbs on duplex ultrasound (DU). Patients with bilateral chronic venous insufficiency, CEAP (clinical-etiology-anatomy-pathophysiology) C3 to C6, and a visual analog scale score for pain >5 underwent DU for reflux evaluation of the deep venous system (reflux ≥1 second); superficial system, great saphenous vein, and small saphenous vein (reflux ≥0.5 second); and perforator system (reflux ≥0.35 second). All patients underwent IVUS in the iliac venous territory. The area of the impaired venous segments was categorized as obstruction 
ISSN:2213-333X
2213-3348
DOI:10.1016/j.jvsv.2023.05.018