Table 4.
Postoperative outcomes of patients with or without lower extremity malperfusion syndrome (LE-MPS) (only patients who underwent open aortic repair)
| Outcome | All patients (N = 529) | LE-MPS (n = 17) | Non-MPS (n = 512) | P value |
|---|---|---|---|---|
| Reoperation for bleeding | 9 (1.8) | 0 (0) | 9 (1.8) | 1.0 |
| Tamponade | 9 (1.7) | 0 (0) | 9 (1.8) | 1.0 |
| Perioperative MI | 5 (1.0) | 0 (0) | 5 (1.0) | 1.0 |
| Atrial fibrillation | 177 (33) | 7 (41) | 170 (33) | .49 |
| DSWI | 12 (2.3) | 0 (0) | 12 (2.3) | 1.0 |
| Sepsis | 8 (1.5) | 1 (5.9) | 7 (1.4) | .23 |
| New-onset CVA | 35 (6.6) | 0 (0) | 35 (6.8) | .62 |
| New-onset paraplegia | 1 (0.2) | 0 (0) | 1 (0.2) | 1.0 |
| Pneumonia | 79 (15) | 5 (29) | 74 (14) | .15 |
| Reintubation | 33 (6.2) | 3 (18) | 30 (5.9) | .08 |
| Tracheostomy | 15 (2.8) | 2 (12) | 13 (2.5) | .08 |
| Postoperative AKI | 55 (10) | 2 (12) | 53 (10) | .69 |
| Requiring new dialysis | 21 (4.0) | 0 (0) | 21 (4.1) | 1.0 |
| Postoperative LOS (d) | 10 (7, 15) | 14 (9, 24) | 10 (7, 15) | .047 |
| Intraoperative mortality | 5 (1.0) | 0 (0) | 5 (1.0) | 1.0 |
| In-hospital mortality | 34 (6.4) | 2 (12) | 32 (6.3) | .30 |
| 30-d mortality | 28 (5.3) | 2 (12) | 26 (5.1) | .23 |
| Operative mortality∗ | 36 (6.8) | 3 (18) | 33 (6.5) | .10 |
Values are presented as median (interquartile range) for continuous variables and number/total number (%) for categorical variables. P value <.05 is statistically significant. Non-MPS, No malperfusion syndrome; MI, myocardial infarction; DSWI, deep sternal wound infection; CVA, cerebrovascular accident; AKI, acute kidney injury; LOS, length of stay.
∗
Defined as in-hospital mortality or mortality within 30 days after open repair.