Higher volume and lower density of epicardial adipose tissue were significantly associated with frequent premature ventricular complexes compared to matched controls (P < 0.001).
Case-Control (n=272)
Is epicardial adipose tissue volume and density associated with the presence and origin site of premature ventricular complexes?
Higher volume and lower density of epicardial adipose tissue are significantly associated with frequent premature ventricular complexes and their specific sites of origin.
p-value: p=<0.001
AIMS: This study aims to explore the association between the features of epicardial adipose tissue (EAT) in different zones and premature ventricular complexes (PVCs) originating from different sites by computed tomography (CT). METHODS AND RESULTS: A total of 136 patients who underwent radiofrequency ablation for PVCs were incorporated in this study. One hundred and thirty-six matched controls were included in this study using the case-control method (1:1 matching). PVCs were classified into four subgroups: (1) right ventricular outflow tract (RVOT-PVCs), (2) non-RVOT of the right ventricle (RV-PVCs), (3) left ventricular outflow tract (LVOT-PVCs), and (4) non-LVOT of the left ventricle (LV-PVCs). The volume and density of EAT were quantified by CT. Patients with PVCs had a significantly higher volume and lower density of EAT than the controls (P < 0.001). The LVOT-PVCs and LV-PVCs had a higher left ventricle periventricular EAT volume (LV-EATv) proportion (P < 0.05). The right ventricle periventricular EAT volume (RV-EATv) proportion was higher in ROVT-PVCs and LVOT-PVCs (P < 0.05). RVOT-PVC patients had a higher volume ratio and a smaller density differential (P < 0.05). Patients with LVOT-PVCs had a lower volume ratio and the LV-PVCs showed a greater density differential (P < 0.05). CONCLUSION: Higher volume and lower density of EAT were significantly associated with frequent PVCs. The RVOT-PVC patients had a higher volume ratio and a smaller density differential. The LVOT-PVCs had a lower volume ratio and the LV-PVCs showed a greater density differential. These suggest a link between EAT structural properties and PVCs and a potential role for regional EAT in the development of PVCs.
Shen et al. (Fri,) conducted a case-control in Premature ventricular complexes (PVCs) (n=272). Epicardial adipose tissue (EAT) features measured by CT vs. Matched controls was evaluated on Volume and density of EAT (p=<0.001). Higher volume and lower density of epicardial adipose tissue were significantly associated with frequent premature ventricular complexes compared to matched controls (P < 0.001).