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Table 2 Postoperative comparison of both groups

From: The “Guidewire-Coil”-Technique to prevent retrograde stone migration of ureteric calculi during intracorporeal lithothripsy

 

Guidewire-Coil

n = 27

 

Control

n = 28

 

P value

 

±SD

 

±SD

Operative time [min]

 Mean

67.6

29.8

70.3

34.0

0.901*

 Median

61.0

 

58.5

  

Stone migration

    

0.044†

 Yes

2 [7.4%]

 

8 [28.6%]

  

 No

25

 

20

  

Auxiliary procedures

    

0.032†

 Yes

3 [11%]

 

10 [35.7%]

  

  Flexible URS

2

 

5

  

  SWL

0

 

4

  

  Secondary URS

0

 

1

  

 No

24

 

18

  

Stone-free rate

    

0.079†

 Yes

25 [92.6%]

 

21 [75%]

  

 No

2

 

7

  

Lithotripsy

    

0.500†

 Ho:YAG

20

 

19

  

 Pneumatic

8

 

9

  
  1. Operative time was determined using the anesthesia protocols
  2. SD = standard deviation; URS = ureterorenoscopy; Ho:YAG = Holmium-YAG laser lithotripter
  3. *Significant at p value < 0.05 by Mann–Whitney test
  4. †Significant at p value < 0.05 by Fisher’s-exact test
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BMC Urology

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