Why the study?
How do spatial vectorcardiograms differ in normal subjects over the age of 40 compared to younger subjects?
How do spatial vectorcardiograms differ in normal subjects over the age of 40 compared to younger subjects?
The study defines normal spatial vectorcardiogram parameters for subjects over 40, noting differences from younger individuals.
May warrant age-specific QRS loop norms for vectorcardiography in adults over 40; hypothesis-generating and requires prospective validation.
The spatial vectorcardiograms of 114 normal subjects over the age of 40 years have been studied. Differences in the form, orientation and magnitude of the QRS loops of these records and those of younger normal subjects recorded with the same techniques were found. The study represents a further step in defining the normal spatial vectorcardiograms.
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J.A. Abildskov (1955) studied this question.
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