Table 2.
Perioperative Outcomes and Complications
| Variable | No AF Surgery n=308 | Concomitant CMP-IV n=308 |
P-value |
|---|---|---|---|
| Perioperative Outcomes | |||
| CMP-IV Lesion Set | |||
| Biatrial | - | 277 (90%) | - |
| Left Sided | - | 31 (10%) | - |
| Sternotomy | 287 (93%) | 253 (82%) | <0.001 |
| CPB time (mins) | 113 [90–147] | 181 [154–211] | <0.001 |
| Aortic Cross-Clamp Time (mins) | 74 [56–94] | 94 [75–112] | <0.001 |
| Intraoperative Blood Products | 247 (80%) | 225 (73%) | 0.039 |
| Length of Stay Post-Surgery (days) | 8 [6–12] | 9 [7–13] | 0.013 |
| ICU Length of Stay (hours) | 52 [29–99] | 70 [40–120] | 0.064 |
| 30-Day Mortality | 7 (2%) | 10 (3%) | 0.467 |
| Complications | |||
| Intra-aortic Balloon Pump | 18 (6%) | 13 (4%) | 0.369 |
| Myocardial Infarction | 1 (<1%) | 0 (0%) | 0.317 |
| Mediastinitis | 3 (1%) | 1 (<1%) | 0.317 |
| Reoperation for Bleeding | 13 (4%) | 8 (3%) | 0.275 |
| Stroke | 8 (3%) | 7 (2%) | 0.821 |
| Sepsis | 7 (2%) | 7 (2%) | 1.000 |
| Atrial Tachyarrhythmias | 76 (25%) | 142 (49%) | <0.001 |
| Pacemaker | 25 (8%) | 43 (14%) | 0.020 |
| Pneumonia | 24 (8%) | 22 (7%) | 0.768 |
| Pulmonary Embolism | 0 (0%) | 0 (0%) | 1.000 |
| Pleural Effusion | 8 (3%) | 19 (6%) | 0.022 |
| Renal Outcomes | |||
| AKI | 49 (16%) | 99 (32%) | <0.001 |
| Renal Failure | 12 (4%) | 19 (6%) | 0.209 |
| Dialysis | 8 (3%) | 14 (5%) | 0.201 |
| Postoperative Dialysis | |||
| Sent Home on Dialysis | 0 (0%) | 3 (1%) | 0.083 |
| Sent Home Without Dialysis | 4 (1%) | 6 (2%) | 0.527 |
| Deceased Before Discharge | 4 (1%) | 5 (2%) | 0.739 |
| Relative increase in serum creatinine from baseline | 1.15 [1.03–1.33] | 1.27 [1.11–1.57] | <0.001 |
| Postoperative GFR (mL/min/1.73m3) | 67 [57–82] | 61 [45–73] | <0.001 |
Values are n (%) or median with interquartile range [IQR], unless otherwise indicated. AF, atrial fibrillation; AKI, acute kidney injury; BMI, body mass index; CABG, coronary artery bypass graft; CMP-IV, Cox-Maze IV procedure; CPB, cardiopulmonary bypass; ICU, Intensive care unit; GFR, glomerular filtration rate; LVEF, left ventricular ejection fraction; NYHA, New York Heart Association.