Table 1.
Demographic and preoperative characteristics of all patients
| Characteristic | All patients |
LE-MPS |
Non-MPS |
P value |
|---|---|---|---|---|
| (N = 538) | (n = 26) | (n = 512) | ||
| Admission variables | ||||
| Age on admission (y) | 60 (50-69) | 62.5 (51-71) | 60 (50-69) | .44 |
| BMI | 28.2 (24.7-32) | 30.2 (24.7-32.3) | 28.1 (24.7-32) | .74 |
| Male sex | 359 (67) | 17 (65) | 342 (67) | .88 |
| CAD | 96 (18) | 3 (12) | 93 (19) | .45 |
| History of MI | 30 (5.6) | 2 (7.7) | 28 (5.5) | .66 |
| Previous cardiac intervention | 85 (16) | 5 (19) | 80 (16) | .58 |
| Previous cardiac surgery | 42 (7.8) | 4 (15) | 38 (7.4) | .14 |
| Hypertension | 386 (72) | 22 (85) | 364 (71) | .14 |
| COPD | 55 (10) | 4 (16) | 51 (10) | .31 |
| Smoking status | .28 | |||
| Never smoker | 233 (43) | 10 (38) | 223 (44) | |
| Former smoker | 148 (27) | 5 (19) | 143 (28) | |
| Current smoker | 155 (29) | 11 (42) | 144 (28) | |
| Diabetes | 36 (6.7) | 1 (4.0) | 35 (6.8) | 1.0 |
| Creatinine on admission (mg/dL) | 1.0 (0.8-1.2) | 1.0 (0.9-1.6) | 1.0 (0.8-1.2) | .058 |
| Creatinine clearance (mL/min) | 90.5 (68.5-120.0) | 73.0 (52.3-112.9) | 91.0 (69.8-120.5) | .04 |
| Chronic kidney disease | 16 (3.0) | 1 (3.9) | 15 (2.9) | .55 |
| History of CVA | 20 (3.7) | 0 (0) | 20 (3.9) | .62 |
| PVD | 85 (16) | 6 (23) | 79 (15) | .28 |
| Connective tissue disorder | 27 (5.0) | 1 (3.9) | 26 (5.1) | 1.0 |
| Ejection fraction (%) | 55 (55-60) | 55 (53-65) | 55 (55-60) | .90 |
| Aortic insufficiency | .68 | |||
| None | 136 (27) | 6 (24) | 130 (27) | |
| Trace/trivial | 55 (11) | 5 (20) | 50 (10) | |
| Mild | 112 (22) | 5 (20) | 107 (22) | |
| Moderate | 87 (17) | 4 (16) | 83 (17) | |
| Severe | 118 (23) | 5 (20) | 113 (23) | |
| Cardiogenic shock | 43 (8.0) | 1 (3.9) | 42 (8.2) | .71 |
| Acute stroke | 2 (0.4) | 0 (0) | 2 (0.4) | 1.0 |
| Acute MI | 0 (0) | 0 (0) | 0 (0) | |
| Acute renal failure | 29 (5.4) | 11 (42) | 18 (3.5) | <.0001 |
| Malperfusion syndrome | ||||
| Spinal cord malperfusion | 2 (0.4) | 2 (7.7) | 0 (0) | .002 |
| Renal malperfusion | 8 (1.5) | 8 (31) | 0 (0) | <.0001 |
| Management | ||||
| IR | 26 (4.8) | 26 (100) | 0 (0) | <.0001 |
| Time from admission to IR (d) | NA | 0 (0, 1) | NA | NA |
| Open aortic repair | 529 (98) | 17 (65) | 512 (100) | <.0001 |
| Time from admission to aortic repair (d) | 0 (0-1) | 1 (1-3) | 0 (0-1) | <.0001 |
| Time from IR to aortic repair (d) | NA | 1 (1-2.5) | NA | NA |
Values are presented as median (interquartile range) for continuous variables and number (%) for categorical variables. P value <.05 is statistically significant. BMI, Body mass index; CAD, coronary artery disease; MI, myocardial infarction; COPD, chronic obstructive pulmonary disease; CVA, cerebrovascular accident; PVD, peripheral vascular disease; IR, endovascular procedure by interventional radiology; NA, not applicable.