|
Characteristics of patients and stone features, mean ± SD
| |
|
Age (years)
|
55.4 ± 10.5
|
|
N (male:female)
|
51/45
|
|
BMI (kg/m2)
|
24.3 ± 3.1
|
|
Hb (g/dL)
|
12.7 ± 1.9
|
|
Hct (%)
|
38.6 ± 5.3
|
|
Side (right:left)
|
54/42
|
|
ASA status, n (%)
| |
|
ASA I
|
44 (45.8)
|
|
ASA II
|
45 (46.9)
|
|
ASA III
|
7 (7.3)
|
|
Multiple renal calculi, n (%)
|
61 (63.5)
|
|
Multiple renal calculi with ipsilateral ureteral calculi, n (%)
|
35 (36.5)
|
|
Renal stone size (mm)
|
32.5 ± 10.7
|
|
Renal stone surface area (mm2)
|
712.2 ± 264.8
|
|
Number of calyces involved by stone, n (%)
| |
|
< 3
|
42 (43.8)
|
|
≥ 3
|
54 (56.2)
|
|
CT (HU)
|
1055.9 ± 301.1
|
|
Ureteric stone size (mm)
|
24.8 ± 12.3
|
|
Ureteric stone number
|
3.2 ± 1.2
|
|
Preoperative history, n
| |
|
SWL
|
12
|
|
URS
|
9
|
|
PCNL
|
14
|
|
Operative parameters, mean ± SD
| |
|
Surgical time (min)
|
82.2 ± 38.3
|
|
Hb drop (g/dL)
|
0.9 ± 0.5
|
|
Hct drop (%)
|
2.7 ± 1.1
|
|
Postoperative hospital stay (d)
|
6.5 ± 1.3
|
|
Stone free, n (%)
|
75(78.1)
|
|
Ancillary treatment
| |
|
Total
|
11
|
|
Second PCNL
|
2
|
|
SWL
|
6
|
|
FURSL
|
3
|
|
Intra and postoperative complications according to the
| |
|
modified Clavien classification
| |
|
Clavien grade 0, n (%)
|
80 (83.3)
|
|
Clavien grade I, n (%)
|
14 (14.6)
|
|
Transient fever > 38.5℃
|
9 (9.4)
|
|
Hemorrhage, non transfusion
|
5 (5.2)
|
|
Clavien grade II, n (%)
|
2 (2.1)
|
|
Blood transfusion
|
2 (2.1)
|
|
Clavien grade ≥ III, n (%)
|
0 (0)
|
