Circadian variation
VE variability was significantly higher in the RVOT than the LVOT cohort
in all quartiles of the day (supplementary data Table 2), however the
mean difference was greatest in the 06:00-12:00 quartile; mean CoV RVOT
vs LVOT 1.15 (± 0.55) vs 0.36 (± 0.15), mean difference 0.79, p
<0.0001. Figure 3.