Key result
Elderly healthy adults exhibit ~39% greater QTc, P-wave, and QRS spatial dispersion than young adults.
Why the study?
Elevated spatial dispersion of P-wave, QRS complex, and QT interval on 12-lead ECG reflects cardiac electrical instability and is linked to cardiovascular morbidity and mortality.
Cross-Sectional (n=128)
No
Age, gender, and body mass index are significant determinants of increased P-wave, QRS, and QTc dispersion on 12-lead ECG in healthy adults, suggesting age-related subclinical electrical heterogeneity.
The spatial dispersion of P-wave, QRS complex, and QT interval on 12-lead electrocardiogram are related to the electrical instability in cardiac conducting tissues and elevated parameters are associated with increased risk of cardiovascular morbidity and mortality.
No takes yet. Share an insight, caveat, or question.
Nelson et al. (2021) conducted a cross-sectional in Apparently healthy adults (n=128). Elderly age vs. Young age was evaluated on QTc-dispersion (msec) (p=<0.0001). Elderly healthy adults exhibited significantly increased spatial dispersion of P-wave, QRS complex, and QTc interval compared to young adults.
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