[Vectorcardiographic study on the right hypertrophy diagnosis in complete right bundle branch block].

Vectorocardiograms were led and interpreted by means of quantitative and qualititive criteria in 100 children with a complete block of the right bundle-branch occurring after correcting surgery of tetralogy of Fallot or isolated defect or the ventricular septum. The results are discussed after demonstrating the pathophysiological patterns of excitation associated with right ventricular hypertrophy and complete block of the right bundle-branch. After a survey of the literature a precise summary of the results is given in order to distinguish clearly by differential diagnosis necessary for postoperative observation of the vitiae cordis mentioned above, between complete block of the right bundle-branch and right ventricular hypertrophy. 4 vetorcardiograms were selected out of the total number of loops for demonstration of the defined criteria for right ventricular hypertrophy associated with complete block of the right bundle-branch.