Table 2.
Echocardiographic characteristics of the left atrium
| PnVAF (n = 50) | LSPnVAF (n = 81) | |||||||
|---|---|---|---|---|---|---|---|---|
| Total (n = 50) | Sinus rhythm (n = 16) | AF recurrence (n = 34) | p value * | Total (n = 81) | Sinus rhythm (n = 38) | AF recurrence (n = 43) | p value * | |
| APD (mm) | 47 ± 5.3 | 46.8 ± 6.0 | 47.0 ± 5.1 | 0.86 | 44.3 ± 5.9 | 42.5 ± 5.8 | 45.9 ± 5.6 | < 0.01 |
| CCD (mm) | 58.0 ± 9.9 | 54.6 ± 10.6 | 59.6 ± 9.2 | 0.09 | 56.8 ± 9.5 | 50.9 ± 8.3 | 62 ± 7.1 | < 0.001 |
| MLD (mm) | 44.9 ± 8.5 | 45.0 ± 9.1 | 44.8 ± 8.3 | 0.96 | 40.2 ± 7.4 | 38.6 ± 8.1 | 41.6 ± 6.6 | 0.06 |
| AV (ml) | 76.0 ± 24.0 | 79.6 ± 28.7 | 74.2 ± 21.6 | 0.46 | 65.6 ± 22.2 | 57.2 ± 21.2 | 73.1 ± 20.6 | 0.001 |
| iAV (ml/m2) | 42.7 ± 12.9 | 46.4 ± 14.9 | 41.0 ± 11.7 | 0.17 | 37.0 ± 13.9 | 32.4 ± 12.1 | 41.1 ± 14.2 | < 0.01 |
| AA (cm2) | 28.5 ± 9.3 | 30.3 ± 10.9 | 27.7 ± 8.5 | 0.35 | 23.8 ± 6.6 | 21.6 ± 5.9 | 25.7 ± 6.6 | < 0.01 |
| AAV (cm/s) | 19.5 ± 5.0 | 22.1 ± 5.5 | 18.3 ± 4.3 | 0.01 | 19.9 ± 5.0 | 21.8 ± 5.5 | 18.3 ± 3.9 | < 0.01 |
The continuous variables were described as mean ± standard deviation. PnVAF persistent non valvular atrial fibrillation, LSPnVAF long standing persistent non-valvular atrial fibrillation, APD antero-posterior diameter, CCD cephalocaudal diameter, MLD medio-lateral diameter, AV atrial volume, iAV indexed atrial volume, AA atrial area, AAV atrial appendage velocity
* Student´s t test