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Table 2 Renal stone characteristics and their ESWL outcomes

From: Fragmentation and propulsive effect of shock wave lithotripsy in treatment of small renal calculi

Stones (n = 58)

Outcome

P value

Stone free

No change

No

%

No

%

Side of stone

 Right

26

89.7

3

10.3

0.028*

 Left

19

65.5

10

34.5

 

Site of stone

 Calyx

41

77.4

22.6

12

0.892

 Pelvis

4

80.0

1

20.0

 

Site of calyx stone (n = 53)

 Upper Calyx

6

100

0.232

 Mid calyx

21

70.0

9

30.0

 

 Lower calyx

14

82.4

3

17.6

 

Dilated PCS

 Yes

4

80.0

1

22.6

0.892

 No

41

77.4

12

22.6

 

Lucent or Opaque

 Lucent

17

73.9

6

26.1

0.587

 Opaque

28

80.0

7

20.0

 

 Stone size (mm)

 6

4

100

0.440

 7

15

71.4

6

28.6

 

 8

26

78.8

7

21.2