Definition

Surgery done to help relieve symptoms of lymphedema (swelling caused by a buildup of lymph in the tissues). Lymphedema can occur when lymph vessels or nodes become damaged or blocked. During a lymphovenous bypass, lymph vessels are rerouted to connect directly to nearby veins in the affected part of the body so that lymph can flow around the damaged or blocked area. This creates a new path for lymph to re-enter the bloodstream and travel through the body. Also called LVA, LVB, and lymphaticovenous anastomosis.