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Table 4 Postoperative parameters of the study groups

From: What is the safe and effective dilator number during access in PCNL? Three-shot dilation versus classical sequential Amplatz dilation

 

3SD (n = 138)

SAD (n = 145)

p

Hospital stay (day), mean ± SD (median)

3.44 ± 1.44 (3)

3.89 ± 1.49 (4)

0.0041*

Time to nephrostomy catheter removal (day), mean ± SD (median)

2.43 ± 1.20 (2)

2.88 ± 0.86 (3)

0.00011*

Urinary leakage after nephrostomy catheter removal (hour),

6.7 ± 10.30 (4)

7.08 ± 10.30 (5)

0.0251*

Hemoglobin drop (g/dl), mean ± SD (median)

1.27 ± 0.89 (1.1)

1.63 ± 1.28 (1.3)

0.0221*

Blood transfusion, n (%)

6 (4.35%)

12 (8.28%)

0.1762

Complications, n (%)

0.5852

 Clavien grade 1

6 (4.35%)

5 (3.45%)

 

 Clavien grade 2

9 (6.52%)

16 (11.03%)

 

 Clavien grade 3

7 (5.07%)

8 (5.52%)

 

Stone-free status, n (%)

122 (88.41%)

128 (88.30%)

0.9732

  1. 3SD Three-shot dilation, SAD Sequential Amplatz dilatation, SD Standard deviation
  2. 1Mann-Whitney U test
  3. 2Chi-square test
  4. *statistically significant