AVF APP Session: Classifying and Treating Pelvic Vein Disease

The SVP Classification System

Pelvic venous disorders present with variable pain patterns and multiple possible causes, so the session introduces SVP, an SCAP-like system that records presenting symptoms by zone, the anatomic vein involved, and whether the pathophysiology is reflux, obstruction, thrombotic, or congenital, to group patients before choosing treatment.

Renal and Iliac Vein Compression

Left renal vein compression, or Nutcracker syndrome, typically causes one-sided flank pain or hematuria and is treated surgically with renal or gonadal vein transposition when severe and persistent, since dedicated renal vein stents and long-term stenting outcomes remain limited. Iliac vein obstruction causing leg heaviness or claudication is managed with stenting when both pelvic and leg symptoms are present.

Vulvar Varices and Staged Treatment

Vulvar varices usually originate from pelvic reflux, and whether to treat top-down from the ovarian vein or bottom-up with direct sclerotherapy depends on which symptoms bother the patient most and where imaging shows the source. Fluoroscopic-guided foam sclerotherapy accessed through the vulvar region, with contrast used to confirm filling up to the pelvic source, is described as often needing two to three staged sessions.