AVLS Session: Pelvic Venous Disorders and SVP Classification

Pelvic Venous Anatomy and Symptom Patterns

An opening talk explained that pelvic venous reservoirs, the renal hilum, pelvic plexus, and extrapelvic veins, determine symptoms, and that whether reflux or obstruction is compensated by collaterals decides whether renal, pelvic, or leg symptoms result from the same lesion.

The New SVP Classification System

A presenter introduced the SVP classification, developed by an American Vein and Lymphatic Society task force, scoring symptoms, varices location, and pathophysiology including anatomy, hemodynamics, and etiology, to replace confusing overlapping syndromic names like pelvic congestion syndrome.

Pelvic Vein Embolization: Why Isolated Treatment Often Fails

Ron Winokur showed venogram cases where isolated left ovarian vein embolization left residual contralateral varices filling from the right ovarian or internal iliac veins, arguing the entire pelvic variceal reservoir, not just one vessel, must be addressed for durable results.

Chronic Pelvic Pain: Neurobiology and Clinical Evaluation

One talk explained how central sensitization, depression, and catastrophizing amplify chronic pelvic pain, while a closing talk outlined a stepwise history, exam, and imaging evaluation illustrated by a case diagnosed with pelvic congestion syndrome.