Chronic Venous Insufficiency - Paperbackby Ram Malkani (Author) Chronic Venous Insufficiency (CVI) of the legs, also known as Varicose Veins, is a prevalent condition affecting nearly a third of the population. Although most cases are asymptomatic, some patients do exhibit symptoms such as pigmentation, stasis eczema, intractable itching, and the development of ulcers. The primary cause of symptoms is venous hypertension or stasis, which is characterized by the pooling of blood in the veins