Chronic venous insufficiency: The role of venous obstruction and treatment options

Abnormal venous reflux caused by venous incompetence has been the dominant concept in chronic venous insufficiency; however, the pivotal role of iliac venous obstructive lesions is now well recognised. Greater consideration should be given to investigating obstructive lesions when treating patients with venous ulcers, recurrent venous thrombosis and unresolved venous disease such as pelvic congestion syndrome