Summary
During the years 1956–1959 inclusive 201 children under 2 years of age were referred to hospital for investigation for congenital heart disease. In 31 cases, clinical and radiographic examination revealed normal conditions; in 13 cases, continued clinical observation was indicated. Congenital heart disease was revealed in 157. Of these, 59 were not subjected to cardiac cathe‐terisation, either because they were in a very poor condition and died before the examination could be accomplished, or because their condition was so good that catheterisation, with advantage, could be postponed until the age of 3–4 years. Catheterisation was performed in 98, including 44 who were also subjected to angiocardiography. Of these 98 cases, 80 were fully clarified; the principal anomaly was disclosed in nine; the diagnosis was uncertain in seven (including three in whom catheterisation was unsuccessful); erroneous diagnoses were made in two. Death occurred in one case.
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