Table 1 Comparison of clinical data between patients with and without delayed discharge after day-surgery PCNL
From: Reasons and risk factors for delayed discharge after day-surgery percutaneous nephrolithotomy
Variable | Cohort (n = 205) | LOSa ≤ 24 h (n = 175) | LOSa > 24 (n = 30) | P-Value |
|---|---|---|---|---|
Age (y) | 51.7 ± 12.4 | 51.7 ± 12.4 | 51.6 ± 12.6 | 0.967 |
Gender | 0.027 | |||
Male | 126 | 113 | 13 | |
Female | 79 | 62 | 17 | |
BMI (kg/m2) | 23.4 ± 3.3 | 23.6 ± 3.3 | 22.5 ± 3.0 | 0.103 |
Comorbidity | 1.000 | |||
No | 173 | 147 | 26 | |
Yes | 32 | 28 | 4 | |
History of previous ipsilateral stone surgery | ||||
No | 177 | 153 | 24 | 0.216 |
Yes | 28 | 22 | 6 | |
U-LEU | 0.005 | |||
− | 153 | 137 | 16 | |
+ | 24 | 17 | 7 | |
+ + | 18 | 14 | 4 | |
+ + + | 8 | 5 | 3 | |
+ + + + | 2 | 2 | 0 | |
NIT | 0.009 | |||
− | 177 | 156 | 21 | |
+ | 28 | 19 | 9 | |
Urine culture | 0.273 | |||
− | 173 | 150 | 23 | |
+ | 32 | 25 | 7 | |
Stone burden (mm2) | 631.5 ± 644.4 | 543.5 ± 589.4 | 1144.6 ± 719.5 | < 0.001 |
Stone density (HU) | 956.4 ± 272.7 | 956.1 ± 271.0 | 958.3 ± 287.3 | 0.966 |
Degree of hydronephrosis 0.755 | ||||
None | 31 | 26 | 5 | |
Mild | 76 | 65 | 11 | |
Moderate | 58 | 49 | 9 | |
Serious | 40 | 35 | 5 | |
Stone type | 0.051 | |||
Single | 29 | 27 | 2 | |
Multiple | 104 | 91 | 13 | |
Staghorn | 72 | 57 | 15 | |
Operative time (min) | 74.6 ± 30.4 | 70.3 ± 25.2 | 99.7 ± 44.0 | < 0.001 |
Number of tracts | < 0.001 | |||
1 | 145 | 134 | 11 | |
2 | 28 | 20 | 8 | |
3 | 14 | 11 | 3 | |
4–7 | 18 | 10 | 8 | |
Tract size | 0.001 | |||
Standard | 38 | 26 | 12 | |
Mini | 167 | 149 | 18 | |
Number of nephrostomy tubes < 0.001 | ||||
0 | 77 | 74 | 3 | |
1 | 89 | 78 | 11 | |
2 | 33 | 21 | 12 | |
3 | 5 | 2 | 3 | |
4 | 1 | 0 | 1 | |
SFR | 88.8% (182/205) | 90.3% (158/175) | 80.0% (24/30) | 0.117 |
Under CT | 87.7% (128/146) | 89.0% (113/127) | 78.9% (15/19) | |
Under X-ray | 9 1.5% (54/59) | 93.8% (45/48) | 81.8% (9/11) | |