Table 2.
Parameters of left atrium and LAA in two groups after radiofrequency ablation.
| Variables | Non-recurrence (n = 56) | Recurrence (n = 27) | P |
|---|---|---|---|
| LAAVmax | 8.32 ± 3.64 | 11.20 ± 4.81 | 0.011 |
| LAAVmin | 3.46(2.38,5.70) | 7.02 ± 3.09 | 0.000 |
| LAAV | 15.80(9.60,18.80) | 8.53 ± 3.16 | 0.000 |
| LAAEV | 3.80(2.43,5.60) | 4.18 ± 1.94 | 1.000 |
| LAAEF | 51.14 ± 12.43 | 37.21 ± 7.03 | 0.000 |
| LAA-VS | 1.00 (0.71,1.62) | 0.61 ± 0.17 | 0.000 |
| LAA | |||
| Orifice perimeter (mm) | 81.11 ± 62.87 | 80.70 ± 17.66 | 0.013 |
| Orifice major axis(mm) | 25.50(21.70,28.90) | 28.97 ± 4.91 | 0.003 |
| Orifice minor axis(mm) | 18.11 ± 6.01 | 22.16 ± 4.34 | 0.002 |
| Depth(mm) | 39.10(32.68,44.15) | 47.01 ± 10.33 | 0.005 |
| LAVmax | 114.48 ± 29.98 | 143.74 ± 36.70 | 0.001 |
| LAVmin | 76.13 ± 32.59 | 110.24 ± 41.54 | 0.001 |
| LAV | 141.91 ± 34.25 | 115.65 ± 30.22 | 0.001 |
| LAEV | 38.35 ± 15.36 | 33.50 ± 12.06 | 0.218 |
| LAEF | 39.61(20.00,48.76) | 25.56 ± 12.81 | 0.013 |
| LA-VS | 0.62 ± 0.35 | 0.28(0.17,0.58) | 0.130 |
Note: LAA, left atrial appendage; LAAVmax, maximal volume of the LAA; LAAVmin, minimal volume of the LAA; LAAEV, LAA ejection volume; LAAEF, LAA ejection fraction; LAA-VS, LAA volume strain; LAVmax, maximal left atrial volume; LAVmin, minimal left atrial volume; LAEV, left atrial ejection volume; LAEF, left atrial ejection fraction; LA-VS, left atrial volume strain.