Explanatory variable | n | Correlation with HRV | p Value |
---|---|---|---|
Age | 28 | −0.472 | 0.011* |
Ejection fraction (LVEF) | 28 | 0.144 | 0.465 |
Fractional shortening (LVFS) | 28 | −0.161 | 0.412 |
Right ventricular size (RVDd) | 28 | −0.464 | 0.013* |
Right ventricular pressure (RVp) | 28 | −0.432 | 0.022* |
QRS duration | 28 | 0.060 | 0.763 |
LVEF by isotope scan | 26 | 0.013 | 0.949 |
RVEF by isotope scan | 26 | 0.050 | 0.807 |
There is a correlation between reduced heart rate variability and increasing age; reduced heart rate variability and increased right ventricular pressure; and reduced heart rate variability and increased right ventricular size.
HRV, heart rate variability; LVEF, left ventricular ejection fraction; LVFS, left ventricular fractional shortening; RVDd, right ventricular end diastolic dimension; RVEF, right ventricular ejection fraction.