Abstract

Coincident with rapid advances in the therapy of heart disease a need for more accurate diagnosis has been recognized. The application of vectorial principles in electrocardiography, and later of vectorcardiography itself, has been a diagnostic aid of as yet undetermined extent. Since the most recent advances in cardiology have occurred in the fields of congenital and rheumatic heart disease, need for information about normal ranges in a comparable age group is apparent. It is the purpose of this paper to supply vectorcardiographic data in normal young adults, a group in which the existence of severe arteriosclerotic changes can be fairly well excluded, and yet in which the normal evolutionary changes in electrical axis from childhood to adulthood will already have occurred.

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