Comprehensive electrocardiographic studies have been made on large groups of normal infants and children since the first observations recorded by Funaro.1 Recently, similar normal observations have been established for premature infants.2 A considerable number of studies, recording changes in the electrocardiogram, have been reported for infants and children suffering from rheumatic infections,3 diphtheria4
(Footnote continued on next page) and scarlet fever.5 So far as we can ascertain, no serial electrocardiographic studies have been made during pneumonia in infants and children.
This article consists of reports on a series of electrocardiograms taken on individual infants and children during the course of pneumonia. As many tracings as possible were made on successive days during the acute illness, and a control tracing was taken on each patient some time after complete recovery. By comparing the control record with the tracings taken during the height of the illness, the