Renal vein valves: a prevalence, microanatomical and histological study

ConclusionOn the basis of our study, RVV are not uncommon. They were more common on left sides, and on both sides, they were found within approximately one centimeter of the junction of the inferior vena cava and renal vein. Although the function of such valves cannot be inferred from this anatomical study, the structures of the Single leaflet valve (TS2) and Double leaflet valve (TS3) valves suggest they could prevent venous reflux from the IVC into the kidney.
Source: Surgical and Radiologic Anatomy - Category: Anatomy Source Type: research