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Table 1 Results of ultrasound parameters in two groups requiring and not requiring reoperation based on the renography

From: Diagnostic value of diuretic ultrasound in evaluating the need for reoperation in children undergoing pyeloplasty

Parameter

The need for reoperation based on the DMSA renography

P value*

Yes

No

APD changes in the 18th minute

11.56 ± 2.09

7.14 ± 3.78

0.001 < 

APD changes in the 30th minute

12.30 ± 3.01

8.84 ± 4.65

0.003

RI in the 18th minute

0.68 ± 0.05

0.70 ± 0.46

0.266

RI in the 30th minute

0.70 ± 0.04

0.72 ± 0.04

0.174

RI changes in the 18th minute

0.05 ± 0.03

0.06 ± 0.03

0.350

RI changes in the 30th minute

0.00 ± 0.36

−0.04 ± 0.88

0.472

Parenchymal thickness after surgery in the 18th minute

4.87 ± 1.28

7.69 ± 2.58

0.001 < 

Parenchymal thickness after surgery in the 30th minute

5.00 ± 1.10

7.66 ± 2.58

0.001 < 

APD after surgery before Lasix administration

23.67 ± 10.40

12.77 ± 7.09

0.004

APD after surgery in the 18th minute

34.90 ± 7.23

19.91 ± 8.07

0.001 < 

APD after surgery in the 30th minute

35.64 ± 6.90

21.62 ± 8.89

0.001 < 

Parenchymal thickness difference in the 18th minute

0.12 ± 0.22

0.02 ± 0.85

0.428

Parenchymal thickness difference in the 30th minute

0.00 ± 0.36

0.04 ± 0.88

0.765