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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