Variable

LASER

(n = 50)

Pneumatic

(n = 50)

ρ-value

Complications:

Hematuria, n (%)

Mucosal damage, n (%)

Ureteral perforation, n (%)

Postoperative fever, n (%)

Overall complications rate n (%)

1 (2.0%)

1 (2.0%)

0 (0.0%)

2 (4.0%)

4 (8.0%)

7 (14.0%)

3 (6.0%)

2 (4.0%)

4 (8.0%)

16 (32.0%)

0.022 (S)

0.543 (NS)

0.423 (NS)

0.643 (NS)

0.003 (S)

Migration of stone, n (%)

1 (2.0%)

5 (10.0%)

0.003 (S)

Mean ± SD operation time (min)

40 ± 26

60 ± 40

0.033 (S)

Mean ± SD lithotripsy time( min)

14.7 ± 2.6

7.9 ± 2.2

0.001 (S)

Hospital stays < 24 hr, n (%)

38 (70.4%)

16 (29.6%)

<0.002 (S)

Immediate stone-free status, n (%)

44 (88.0%)

31 (62.0%)

<0.05 (S)

4 weeks stone-free status, n (%)

49 (98%)

47 (94.0%)

0.0732 (N.S)

Stone location, SFR

Proximal, n (%)

Middle, n (%)

Distal, n (%)

19/22 (86.4%)

8/10 (80.0%)

17/18 (94.4%)

7/21 (33.3%)

9/13 (69.2%)

15/16 (93.7%)

0.002 (S)

0.308 (NS)

0.456 (NS)

D.J stent need n (%)

22 (37.9%)

36 (62.1%)

<0.005 (S)

Dormia basket need, n (%)

3 (6.0%)

9 (18.0%)

0.065 (NS)

Impacted stone, n (%)

4 (8.0%)

7 (14.0%)

0.082 (NS)