Table 4.
Multivariate cox regression analysis to predict AF recurrence after 1 year
| Hazard ratio | 95% confidence interval | p-value | |
|---|---|---|---|
| LA EAT dispersion, HU | 2.6 | 1.5–4.4 | < 0.001 |
| LA e-EAT, % | 2.2 | 1.2–4.0 | < .01 |
| LA volume index mL/m2 | 1.3 | 0.8–2.4 | .30 |
| CT LA EAT volume, index (mL/m2) | 1.0 | 1.0–1.1 | .24 |
| Persistent AF | 1.8 | 1.1–2.9 | .02 |
| Age, ≥ 70 years old | 0.8 | 0.4–1.3 | .32 |
| Male sex | 0.9 | 0.6–1.7 | .95 |
| BMI, ≥ 30 kg/m2 | 0.6 | 0.3–1.0 | .05 |
Multivariate Cox regression analysis to predict atrial fibrillation AF recurrence 1 year after pulmonary vein isolation (PVI)
Epicardial adipose tissue (EAT) dispersion was defined as the difference between the low attenuation and high attenuation mean EAT value. LA volume index mL/m2 was calculated on the contrast-enhanced scan. LA enhancing EAT (e-EAT) was calculated as the LA EAT volume difference between the noncontrast and contrast-enhanced scan divided by the total LA EAT volume on the noncontrast-enhanced scan, as previously reported (14)
AF, atrial fibrillation; BMI, body mass index; LA, left atrium; LAA, left atrial appendage; EAT, epicardial adipose tissue; NE-EAT, non-enhancing epicardial adipose tissue