Skip to main content

Table 1 The basic demographics and pre-operative features of included patients

From: Comparison of retroperitoneal laparoscopic versus open adrenalectomy for large pheochromocytoma: a single-center retrospective study

  Before PSM After PSM
Variable RLA (n = 101) OA (n = 46) P value RLA (n = 46) OA (n = 46) P value
Age (years) 47.15 ± 12.96 45.17 ± 10.29 0.364 48.15 ± 12.68 45.17 ± 10.29 0.219
Male 48 (47.52) 28 (60.87) 0.123 24 (52.17) 28 (60.87) 0.400
Body mass index (kg × m−2) 21.98 ± 3.04 21.67 ± 2.73 0.550 21.62 ± 2.70 21.67 ± 2.73 0.934
Hypertension 66 (65.35) 32 (69.57) 0.856 29 (63.04) 32 (69.57) 0.508
VMA (μmol/24 h) 96.75 (14.20, 689.60) 110.20 (14.55, 371.48) 0.966 119.00 (43.53, 340.58) 110.20 (14.55, 371.48) 0.372
eGFR (ml/min/1.73 m2) 101.1 (62.2, 145.1) 102.8 (71.8, 140.2) 0.768 96.7 (73.3, 132.7) 102.8 (71.8, 140.2) 0.705
Preoperative hemoglobin (g/L) 131 (71, 164) 127 (72, 161) 0.851 122 (80, 149) 127 (72, 161) 0.291
Comorbidities [n (%)]
 Myocardial infarction 3 (2.97) 0 (0) 0.552 3 (6.52) 0 (0) 0.242
 Stroke 4 (3.96) 3 (6.52) 0.678 2 (4.35) 3 (6.52) 0.646
 Coronary heart disease 9 (8.91) 2 (4.35) 0.330 4 (8.70) 2 (4.35) 0.398
 Diabetes 18 (17.82) 10 (21.74) 0.575 9 (19.57) 10 (21.74) 0.797
ASA score [n (%)]
 III/IV 29 (28.71) 10 (21.74) 0.375 12 (26.09) 10 (21.74) 0.625
Tumor size (cm) (range) 6.48 ± 1.83 (5.1–9.8) 7.92 ± 1.98 (5.1–13.2) < 0.001 7.76 ± 2.02 (5.1 9.4) 7.92 ± 1.98 (5.1–13.2) 0.704
Tumor laterality [n (%)]
 Bilateral 4 (3.96) 2 (4.35) 0.856 2 (4.35) 2 (4.35) 0.975
 Right 57 (56.44) 28 (60.87)   29 (63.04) 28 (60.87)  
 Left 40 (39.60) 16 (34.78)   15 (32.61) 16 (34.78)  
  1. Abbreviations: PSM the propensity score matching, RLA retroperitoneal laparoscopic adrenalectomy, OA open adrenalectomy, BP blood pressure, VMA vanillic mandelic acid, eGFR estimated glomerular filtration rate, ASA American Society of Anesthesiologists Physical Status Classification System