Table 3 Clinical and TOE findings in the four groups of patients.
| Group 1 | Group 2 | Group 3 | Group 4 | |
|---|---|---|---|---|
| Number of patients | 486 | 142 | 51 | 78 |
| Age (years) | 65.9 (9.1) | 66.4 (11.3) | 65.4 (10.4) | 68.1 (10) |
| Arrhythmia duration (days) | 104.8 (137)* | 36.3 (108) | 42.6 (85.2) | 37.1 (127) |
| Atrial thrombosis | 32 (6.6%) | 8 (5.6%) | 1 (2%) | 7 (9%) |
| SEC grade | ||||
| 0 | 109 (22.4%) | 36 (25.4%) | 14 (27.5%) | 25 (32.1%) |
| 1 | 146 (30%) | 47 (33.1%) | 22 (43.1%) | 22 (28.2%) |
| 2 | 120 (24.7%) | 33 (23.2%) | 5 (9.8%) | 14 (17.9%) |
| 3 | 64 (13.2%) | 7 (4.9%) | 5 (9.8%) | 11 (14.1%) |
| 4 | 47 (9.7%) | 19 (13.4%) | 5 (9.8%) | 6 (7.7%) |
| ECV not performed because of severe SEC | 34 (7%) | 11 (7.7%) | 2 (4%) | 6 (7.7%) |
Data are number (%) or mean (SD).
*p<0.05 versus groups 2, 3, and 4.
ECV, electrical cardioversion; SEC, spontaneous echo contrast.