We present a case of tetralogy of Fallot who had previously undergone
a graded Brock-type operation. The post-operative development of pulmo
nary arteries and pulmonary trunk after the Brock operation were very
suitable for total correction, which was then performed successfully.
In contrast to shunt, in Brock-type operations enlargement of the outf
low tract induces symmetrical growth of hypoplastic pulmonary arteries
without the risk of acquired pulmonary obstruction or peripheral sten
osis at the site of anastomosis. After palliative operations, the repa
ir can be deferred until the pulmonary arteries are of a suitable size
.