Pulmonary stenosis in the first year of life.

The purpose of this report is not only to empha- size the lethal nature of severe pulmonary stenosis in infancy but also to assess the operative results in a group of 26 infants in the first year of life. An excellent review by Luke (1966) of 36 children under 2 years of age confirms our opinion that surgical intervention should be undertaken in the first year of life. All infants were referred for operation from the Department of Cardiology under the direction of Dr. John Keith, Hospital for Sick Children, Toronto, between January 1956 and December 1965. Ten patients previously reported by Mustard, Rowe, and Firor (1960) are included as a follow-up study and those cases with pulmonary atresia and hypoplastic right ventricle are excluded.