Table 1 Baseline characteristics of patients whose stones were located ≤ 30 mm from the UPJ
| Type of procedure | p value | ||
|---|---|---|---|
| URS | URS + ARD | ||
| All patients. no | 25 | 14 | |
| Gender, no. Male/Female | 12/13 | 7/7 | 1.000 |
|
Age, years, mean ± SD, median [range] |
49.4 ± 15.9, 48 [22–73] |
46.1 ± 11.8, 44.5 [27–65] | 0.504 |
|
BMI, mean ± SD, median [range] |
23.7 ± 2.9, 23.5 [19.5–31.2] |
24.4 ± 3.3, 25.7 [18.0–29.4] | 0.478 |
| Hydronephrosis grade, no. Mild/Moderate/Severe | 15/7/3 | 11/3/0 | 0.317 |
| Stone laterality (L/R), no | 10/15 | 6/8 | 1.000 |
|
Stone size, mean ± SD median [range] | |||
| Length (mm) |
10.2 ± 4.0, 10 [5–20] |
11.6 ± 4.2, 11 [4–18] | 0.298 |
| Width(mm) |
6.6 ± 2.1, 6 [4–10] |
8.2 ± 3.3, 7.5 [3–15] | 0.069 |
| Burden (mm2)a |
57.5 ± 38.2, 47.1 [15.7–157.0] |
82.6 ± 55.3, 65.9 [7.1–176.6] | 0.102 |
| Density (HU) |
1129.4 ± 327.5, 1119, [467–1849] |
1268.8 ± 301.0, 1332.5 [619–1643] | 0.254 |
|
Operation time (min), mean ± SD, median [range] |
40.1 ± 19.0, 42 [12–94] |
44.5 ± 25.3, 42.5 [18–82] | 0.648 |
| Intraoperation complications | 0 | 0 | – |
|
Postoperative stay (days), mean ± SD, median [range] |
4.0 ± 1.7, 4 [2–8] |
3.2 ± 2.1, 2 [1–7] | 0.240 |
| Post-fever, no | 0 | 1 | 0.359 |
| Post-sepsis, no | 0 | 1 | 0.359 |
|
Total expense (¥), mean ± SD, median [range] |
22,693.6 ± 11,528.6, 18,644.5 [11693.0 ± 54,848.0] |
23,839.6 ± 5046.9, 23,295.7 [17096.0 ± 33,675.0] | 0.729 |
| SFR (%) | |||
| One-day | 80.0 | 71.4 | 0.696 |
| One-month | 80.0 | 78.6 | 1.000 |