Size ≤ 10 mm n = 60 | p | Size > 10 mm n = 94 | p | |||
---|---|---|---|---|---|---|
Impacted n = 16 | Not impacted n = 44 | Impacted n = 58 | Not impacted n = 36 | |||
Age (years) mean ± SD | 33.9 ± 3.1 | 34.1 ± 7.2 | 0.93 | 40.4 ± 9.2 | 37.5 ± 9.4 | 0.1 |
Male/female n | 7/9 | 27/17 | 0.33 | 32/26 | 20/16 | 0.69 |
BMI (kg/m2) | 29.7 ± 3.6 | 29.5 ± 3.7 | 0.78 | 29.8 ± 3.1 | 29.7 ± 3.6 | 0.81 |
Previous URSL n (%) | 4 (25) | 12 (26.1) | 0.8 | 21 (36.2) | 10 (27.8) | 0.31 |
Duration of symptoms (days) median (range) | 38 (13.0–146.0) | 21 (16.0–145.0) | 0.21 | 29.0 (13.0–152.0) | 24.0 (13.0–148.0) | 0.11 |
ECOG performance status n (%) | ||||||
< 2 | 10 (62.5) | 37 (84.1) | 0.21 | 48 (82.8) | 30 (83.3) | 0.44 |
≥ 2 | 6 (37.5) | 7 (15.9) | 10 (17.2) | 6 (16.7) | ||
Radiological findings | ||||||
Hydronephrosis n (%) | 13 (81.3) | 36 (81.8) | 0.93 | 56 (95.6) | 29 (80.6) | 0.04 |
Hydronephrosis grade n (%) | ||||||
Mild | 9 (56.3) | 36 (81.8) | 0.05 | 40 (68.9) | 23 (63.9) | 0.09 |
Moderate | 4 (25) | 1 (2.3) | 16 (27.6) | 5 (13.9) | ||
PAPD (mm) mean ± SD | 27.9 ± 10 | 23.4 ± 5.2 | 0.08 | 28.6 ± 8.2 | 25.1 ± 6.3 | 0.09 |
PUD (mm) mean ± SD | 11.9 ± 2.8 | 9.6 ± 3.9 | 0.04 | 13.2 ± 3.4 | 11.1 ± 4.1 | 0.03 |
UWT (mm) mean ± SD | 5 ± 1.6 | 3.6 ± 1.4 | 0.005 | 3.7 ± 1.6 | 2 ± 1.4 | < 0.001 |
Stone characteristics | ||||||
Size (mm) mean ± SD | 8.9 ± 1.4 | 8.5 ± 1.3 | 0.64 | 14.7 ± 2.2 | 13.5 ± 3.7 | 0.47 |
Side (right/left) n | 9/6 | 25/14 | 0.23 | 26/33 | 22/19 | 0.1 |
Number (n) mean ± SD | 1.1 ± 0.1 | 1 ± 0.4 | 0.31 | 1.33 ± 0.7 | 1.0 ± 0.3 | 0.01 |
Site n (%) | ||||||
Upper | 5 (31.3) | 13 (29.6) | 0.2 | 25 (43.1) | 15 (41.7) | 0.01 |
Middle | 1 (6.3) | 10 (22.7) | 2 (3.4) | 11 (20.6) | ||
Lower | 11 (68.8) | 21 (47.7) | 30 (71.4) | 10 (27.8) | ||
Density (HU) | 368.7 ± 132.6 | 409.5 ± 129.1 | 0.17 | 499.7 ± 179.5 | 501 ± 177 | 0.93 |
Endoscopic findings n (%) | ||||||
Ureteral edema | 8 (50) | 39 (88.6) | 0.1 | 42 (72.4) | 25 (69.4) | 0.21 |
Ureteral polyp | 2 (12.5) | 2 (4.6) | 21 (36.2) | 8 (22.2) | ||
White patch | - | - | 1 (2.4) | 6 (11.5) | ||
Operative Time(min) mean ± SD | 46 ± 1.4 | 27.9 ± 1.3 | 0.03 | 55 ± 1.2 | 35 ± 1.6 | 0.04 |
Lasering time(min) mean ± SD | 27.2 ± 2 | 13.9 ± 1.1 | 0.04 | 33 ± 1.6 | 17 ± 1.8 | 0.03 |