In this section
The combination of a VSD with Pulmonary Stenosis, with the Aorta
"Overriding" (sitting 'astride') the VSD and with RV Hypertrophy is
termed "Tetralogy of Fallot". The obstruction to flow into the
lungs leads to blood being diverted through the VSD to the aorta.
Flow in the lung circulation is reduced and the child appears
Some affected patients, who are severely blue, need a temporary
operation (called a shunt operation), which is carried out in
infancy to increase lung blood flow and improve cyanosis. This
involves insertion of a tiny piece of artificial tube (made from
Goretex) between the Aorta, or a branch (usually one of the arm
arteries), and one of the branch Pulmonary Arteries. Corrective
surgery is usually performed at about six months. Correction
involves closure of the VSD with a patch and enlargement of the
narrow area of the right ventricle and pulmonary artery (pulmonary
stenosis), often requiring a further patch. (Complete repair).