The tetralogy of Fallot is one of the most frequent and serious congenital cardiac malformation accompanied cyanosis. For relief of cyanosis, the Waterston operation is a successful, palliative procedure in infant & young child under age of five with obstructive lesions of the right: side of the heart who require a systemic-pulmonary arterial shunt for survival. A patient, aged 3 and weighing 13 kg., who had been cyanotic since one month after birth,. was admitted to the University of Severance Hospital under a diagnosis of tetralogy of Fallot, The side to side anastomosis between the right pulmonary artery & the ascending aorta was performed in March 1976. The anastomotic channel was made only 4 ram. in diameter, thereafter massive unilateral pulmonary congestion on the side of the anastomosis developed shortly after operation. And the. patient died of congestive heart failure within a hour. And so the purpose of this report is describe the immediate & late effect of systemic-pulmonary shunt for T.O.F. with review of literatures.[KTCS 1977;1:113-117]