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Table 2 Perioperative and postoperative data

From: Comparison of outcomes between flexible ureteroscopy and mini-percutaneous nephrolithotomy in the management of upper calyceal calculi larger than 2 cm

Variables

FURSL group

mini-PNL group

P value

Operation time (mean ± SD) (min)

69.8 ± 13.9

87.8 ± 14.3

0.000

Hospitalization time (mean ± SD) (days)

1.3 ± 0.6

2.5 ± 1.2

0.000

Cost (mean ± SD) ($)

2603.8 ± 516.1

2509.6 ± 711.2

0.515

Complications, (modified Clavien classification), n (%)

   

Overall intraoperative

3 (8.1)

4 (10.5)

0.719

Bleeding (Grade I)

0

3 (7.9)

 

Minor pelvic-ureteric injury (Grade I)

3 (8.1)

1 (2.6)

 

Overall postoperative

2 (5.4)

5 (13.2)

0.249

Fever (Grade I)

2 (5.4)

2 (5.3)

 

Gross hematuria (Grade I)

0

3 (7.9)

 

Total complications

5 (13.5)

9 (23.7)

0.258

Hemoglobin drop (mean ± SD) (g/L)

1.2 ± 0.7

3.0 ± 1.2

0.000

Stone-free rates (1 month postoperative, %)

81.1

89.5

0.304

Stone composition

  

0.899

Calcium oxalate monohydrate

17

16

 

Calcium oxalate dihysdrate

13

12

 

Carbonate apatite

5

7

 

Uric acid

2

3