Congenital Tracheo-œsophageal Fistula

Abstract

Section ofPaediatrics 329 presumably responsible for the hypertension, indicates that some dopamine-f-hydroxylase activity was present. Dopamine and noradrenaline similarly attest to the presence of dopa decarboxylase. Although it is tempting to suggest that the diarrhcea in this syndrome is caused by dopamnine, there is little evidence at present to support this view. Large amounts of an unknown catecholamine, detected chromatographically, in urine extracts from our patient, might equally well be the cause. No excess of 5-hydroxyindole acetic acid, the major metabolite of 5-hydroxytryptamine, was detected in the urine. This case will be published in full elsewhere.