Figure 1.
The thickness of EAT measured in parasternal long-axis view of TTE (A) and 3-chamber view of CT with contrast enhancement (B) showed significant correlation (C). AO = aorta; CT = computed tomography; EAT = epicardial adipose tissue; LA = left atrium; LV = left ventricle; RV = right ventricle; TTE = transthoracic echocardiography.
Figure 2.
Differences of EAT thickness in PAF and non-PAF patients and those with and without recurrences.
Increased EAT thickness was noted among non-PAF patients and those who experienced recurrences after catheter ablation. EAT = epicardial adipoes tissue; PAF = paroxysmal atrial fibrillation. +P value < 0.05, non-PAF versus PAF patients; *P value < 0.05, patients with recurrences versus patients without recurrences.
Figure 3.
ROC curve and Kaplan-Meier analysis of EAT thickness in predicting recurrence after catheter ablation of PAF.
At the cutoff value of 6.0 mm identified by the ROC curve (A), PAF patients with an EAT thickness of > 6.0 mm had a higher recurrence rate of atrial arrhythmias after catheter ablation (B). EAT = epicardial adipose tissue; PAF = paroxysmal atrial fibrillation; ROC = receiver-operator characteristic.
Figure 4.
ROC curve and Kaplan-Meier analysis of EAT thickness in predicting recurrence after catheter ablation of non-PAF.
At the cutoff value of 6.9 mm identified by the ROC curve (A), non-PAF patients with an EAT thickness of > 6.9mm had a higher recurrence rate of atrial arrhythmias after catheter ablation (B). EAT = epicardial adipose tissue; PAF = paroxysmal atrial fibrillation; ROC = receiver-operator characteristic.