Table 1. Preoperative variables of patients undergoing adrenalectomy for pheochromocytoma (n = 268).
| Variable | Group A (n = 38) | Group B (n = 230) | p |
|---|---|---|---|
| Sex Male Female |
15 (39.5) 23 (60.5) |
112 (48.7) 118 (51.3) |
0.292 |
| Age, in years | 43.29 ± 13.86 | 45.77 ± 15.60 | 0.358 |
| Height, in cm | 163.55 ± 8.60 | 165.55 ± 7.95 | 0.157 |
| Weight, in kg | 62.95 ± 10.88 | 66.03 ± 12.01 | 0.140 |
| Body mass index | 23.45 ± 2.91 | 23.98 ± 3.24 | 0.350 |
| Coexisting diseases No Yes |
35 (92.1) 3 (7.9) |
211 (91.7) 19 (8.3) |
0.939 |
| Tumor number Single Multiple |
36 (94.7) 2 (5.3) |
205 (89.1) 25 (10.9) |
0.288 |
| Tumor location Unremarkable Proximal to vessels/organs |
18 (47.4) 20 (52.6) |
184 (80.0) 46 (20.0) |
0.000* |
| Radiographic tumor size, as maximum diameter in cm |
7.32 ± 3.01 | 4.42 ± 1.75 | 0.000* |
| Operative approach Laparoscopic Open |
32 (84.2) 6(15.8) |
227 (98.7) 3 (1.3) |
0.000* |
| Prior retroperitonium operation No Yes |
37 (97.4) 1 (2.6) |
223 (97.0) 7 (3.0) |
0.890 |
| 24-h urine NE, in µg | 163.33 (51.61, 311.22) | 83.57 (25.25, 221.40) | 0.043* |
| 24-h urine E, in µg | 2.78 (1.26, 4.55) | 3.17 (2.11, 5.30) | 0.438 |
| 24-h urine DA, in µg | 184.44 (100.00, 236.23) | 166.71 (122.09, 256.32) | 0.381 |
| Hemoglobin, in g/L | 128.92 ± 17.28 | 135.92 ± 16.08 | 0.015* |
| Platelet count, as ×109/L | 254.61 ± 84.35 | 247.87 ± 84.25 | 0.648 |
| Prothrombin time, in s | 11.64 ± 0.86 | 11.53 ± 0.70 | 0.394 |
| Activated partial thromboplastin time, in s |
28.93 ± 11.17 | 26.85 ± 4.00 | 0.262 |
| International normalized ratio | 1.01 ± 0.07 | 0.99 ± 0.07 | 0.209 |
| Fibrinogen, in mg/dL | 2.90 ± 0.99 | 2.97 ± 1.12 | 0.675 |
| Phenoxybenzamine dose, in mg/d | 30.00 (20.00, 30.00) | 20.00 (15.00, 30.00) | 0.000* |
| Preparation time, in d | 20.00 (7.00, 30.00) | 30.00 (25.75, 36.00) | 0.014* |
| Medication other than phenoxybenzamine No Yes |
31(81.6) 7(18.4) |
208(90.4) 22(9.6) |
0.104 |
Data are presented as n (%), mean ± SD, or mean (25th and 75th percentiles). *p < 0.05.
DA, dopamine; E, epinephrine; NE, norepinephrine.