Table 2.
Periprocedural details.
| Variable | Preoperative SR (n = 333) | |
|---|---|---|
| Surgical access | ||
| Median sternotomy | 79.0 | |
| Lateral thoracotomy | 19.8 | |
| Thoracoscopic | 1.2 | |
| Conversion to median sternotomy necessary | 0.6 | |
| Procedures performed | ||
| CABG | 45.2 | |
| Mitral valve reconstruction | 28.3 | |
| Aortic valve replacement | 27.7 | |
| Tricuspid valve reconstruction | 9.0 | |
| Mitral valve replacement | 8.4 | |
| Aortic surgery | 4.8 | |
| Aortic valve reconstruction | 1.2 | |
| Tricuspid valve replacement | 0.3 | |
| Any atrial septal closure | 3.9 | |
| Energy delivered | ||
| Endocardial | 47.9 | |
| Epicardial | 60.8 | |
| Energy source used for ablation | ||
| Radiofrequency | 54.8 | |
| Maximum output, watt | 37 | ±22 |
| Total duration, sec | 217 | ±184 |
| Cryoablation | 45.2 | |
| Minimal temperature, °C | −69 | ±15 |
| Total duration, sec | 526 | ±272 |
| Concept of ablation lines | ||
| Box isolation | 57.9 | |
| Pulmonary vein isolation | 54.7 | |
| Left atrial lines | 45.0 | |
| Right atrial lines | 10.6 | |
| Left atrial appendage isolation | 89.8 | |
| Excision | 37.1 | |
| Endocardial suture | 13.0 | |
| Epicardial suture | 15.4 | |
| Epicardial ligature | 2.0 | |
| Other | 0.3 | |
| Stapler | 22.7 | |
| Exclusion via clip | 24.1 | |
| Atriclip | 97.2 | |
| Other | 2.8 | |
| Heart rhythm immediately after surgery | ||
| Sinus rhythm | 92.0 | |
| Atrial tachycardia | 1.4 | |
| Atrioventricular block, 2nd degree | 1.4 | |
| Atrioventricular block, 3rd degree | 5.1 | |
Categorical variables are presented as percentages, and continuous parameters as mean ± standard deviation. Abbreviations: CABG, coronary artery bypass grafting; SR, sinus rhythm.