Why the study?
Does age affect the magnitude, azimuth, and elevation of mean spatial QRS and T vectors in healthy men?
Does age affect the magnitude, azimuth, and elevation of mean spatial QRS and T vectors in healthy men?
Age significantly affects the magnitude, azimuth, and elevation of mean spatial QRS and T vectors, highlighting the need for age-specific normal limits in vectorcardiography.
May support age-specific vectorcardiographic norms; leaves open prospective validation in broader cohorts.
The differentiation between normal and abnormal changes in conventional electrocardiography is substantially improved by consideration of normal age trends. For clinical application of spatial vectorcardiography, consideration of age trends is equally important. On the basis of statistical evaluation of magnitude, azimuth and elevation of mean spatial QRS and T vectors in 105 healthy young men and 178 healthy older men, upper and lower limits were determined for each age group. The age differences were highly significant for all items of vector analysis.
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Simonson et al. (1956) studied this question.
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