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Table 2 Operation-related parameters

From: One-stage efficacy of single tract minimally invasive ECIRS in the improved prone frog split-leg position for staghorn stones

Characteristic

stmECIRS

stmPNL

P value

Operative time (min)

105.0 (85.0, 124.0)b

99.0 (75.8, 150.3)b

0.996a

Hb drop (g/dL)

2.4 (1.7, 3.1)b

2.1 (1.5, 2.7)b

0.353a

Scr up (umol/L)

− 2.46 ± 8.97

− 1.89 ± 12.80

0.814

Hospitalization time (d)

10.0 (8.0, 13.0)b

11.5 (10.0, 14.1)b

0.082a

One-stage stone free (%)

38 (84.4)

22 (57.9)

0.007

Complications

0.345

 Fever (> 38.5 ℃) (%)

1 (2.2)

0

1.0c

 Hemorrhage (%)

4 (8.9)

7 (18.4%)

0.202

 Blood transfusion (%)

2 (4.4)

2 (5.3)

0.862

Clavien grade

 0 (%)

40 (88.9)

31 (81.6)

0.345

 I (%)

3 (6.7)

5 (13.1)

0.318

 II (%)

2 (4.4)

2 (5.3)

0.862

 ≥ III (%)

0

0

 
  1. StmPNL Group: single tract minimally invasive percutaneous nephroscopy in prone position was performed for the patients in the prone position
  2. StmECIRS Group: single tract minimally invasive endoscopic combined intrarenal surgery was performed in the improved prone frog split-leg position
  3. Hb: Hemoglobin; Scr: serum creatinine
  4. aMann–Whitney U test was used when normal distribution was not obeyed
  5. bNon-normally distributed continuous variables were represented by the median (quartile)
  6. cSince the data frequency contains “0”, the result of Fisher's Exact Test in the Chi-square Test was used