Table 2 Results and complications of USG-PCNL (357)

Stone-free rate

337

94.4

Mean operation time (min)

65 (40–85)

Mean access time (min)

6.4 (4–11)

Access failure

10

2.8

Residual stone

9

2.5

Ancillary procedure

 ESWL

7

2

 URS

1

0.3

 Redo PCNL

2

0.6

Transfusion

14

4

Fever

26

7.3

Headache

17

4.8

Renal colic

8

2.3

PCS perforation

15

4.2