Table 1:
Hybrid procedures: preoperative data (n = 54)
| Monopolar (n = 19) | Bipolar (n = 35) | P-value | |
|---|---|---|---|
| Age | 61.2 ± 8.6 | 57.1 ± 9.5 | 0.073 |
| M/F | 16/3 (84.2/15.8) | 24/11 (68.5/31.4) | 0.23 |
| BMI | 27.6 ± 4.6 | 26.8 ± 3.6 | 0.84 |
| Diabetes | 0 (0) | 1 (2.8) | 0.71 |
| Hypertension | 7 (36.8) | 15 (42.8) | 0.55 |
| TIA/CVA | 1 (5.3) | 0 (0) | 0.28 |
| Type of preoperative AF | |||
| Paroxysmal | 5 (26.3) | 16 (45.7) | 0.054 |
| Persistent | 4 (21.1) | 8 (22.8) | |
| Long-standing persistent | 10 (52.6) | 11 (31.5) | |
| Prevalence of AF (68% CI) | |||
| Paroxysmal | 20.0 [16.8–23.3] | 22.3 [19.2–257] | 0.74 |
| Persistent | 34.7 [31.2–38.9] | 32.6 [29.1–36.9] | |
| Long-standing persistent | 63.6 [59.9–67.1] | 61.3 [57.4–65.0] | |
| EHRA Score | 4 [3–4] | 4 [3–4] | >0.9 |
| Duration of preoperative AF (years) | 5 [3–8.5] | 5 [4.2–9.0] | 0.66 |
| Anti-arrhythmic drugs | |||
| Amiodaron | 2 (10.5) | 7 (20.0) | 0.08 |
| Dysopiramide | 1 (5.3) | 2 (5.7) | |
| Flecainide | 6 (31.5) | 15 (42.8) | |
| Propaphenon | 1 (5.3) | 2 (5.7) | |
| Sotalol | 5 (26.3) | 11 (31.4) | |
| Electrical cardioversion | 15 (78.9) | 17 (48.5) | 0.06 |
| Previous catheter ablation | |||
| For AF | 6 (31.5) | 12 (34.3) | 0.65 |
| For atrial flutter | 5 (26.3) | 9 (25.7) | |
| Preoperative pace maker | 2 (10.5) | 2 (5.3) | 0.88 |
| Anticoagulant status | |||
| Sodium Warfarin | 16 (84.2) | 30 (85.7) | 0.76 |
| Aspirin | 5 (26.3) | 10 (28.5) | |
| LAVI (ml/m2) | 47 ± 11 | 50 ± 12 | 0.08 |
| LAMax (ml/m2) | 49 ± 20 | 52 ± 25 | 0.63 |
| LAMin (ml/m2) | 30 ± 15 | 32 ± 18 | 0.90 |
| LAEF (%) | 38 ± 12 | 38 ± 11 | 0.90 |
| LA A-P (cm) | 5.0 ± 0.5 | 5.2 ± 0.5 | 0.77 |
| LA S-I (cm) | 6.4 ± 0.5 | 6.3 ± 0.7 | 0.60 |
Normal data were presented as mean ± 1 standard deviation (SD), non-parametric data as median and [interquartile range] and discrete data as percentages (%).
M/F: male/female; BMI: body mass index; AF: atrial fibrillation; CI: confidence interval; EHRA: European Heart Rhythm Association; LAVI: (biplane) left atrial volume index; LAMax: maximum left atrial volume; LAMin: minimum left atrial volume; LAEF: left atrial emptying fraction; LA A-P: left atrial antero-posterior diameter; LA S-I: left atrial antero-posterior diameter.