How Is Truncus Arteriosus Treated?
Because excess blood can repeatedly go to the lungs, the lungs get "flooded." To restrict this flow, a procedure known as pulmonary artery banding can be performed early in life. Pulmonary artery banding is usually not open-heart surgery, and the heart does not need to be stopped. A band, usually made of Gore-Tex, a material similar to rain gear, is placed around the pulmonary artery. This, in essence, kinks the pulmonary artery and restricts the blood from going to the lungs and forces it to the body.
Pulmonary artery banding is a palliative procedure — a fix, not a cure. Complete repair is usually a modification of a Rastelli procedure. Generally, a Rastelli procedure connects the right ventricle to the pulmonary artery using a tube-like connection. This tube is usually a homograft, made from human cadaver tissue. During the Rastelli procedure, the ventricular septal defect is closed with a Gore-Tex patch so that the aorta arises solely from the left ventricle.