p
Overall (147) Stone-Free (136) Failure (11)
Side of stone n, (%) Left Right 70 (47.6) 77 (52.4) 67 (95.7) 69 (89.6) 3 (4.3) 8(10.4)
0.160
HU median, (range) 822 (275-1628) 826 (275-1628) 770 (345-1548) 0.819
HU n, (%) <1000 ≥ 1000 106 (72.1) 41 (27.9) 98 (92.5) 38 (92.7) 8 (7.5) 3 (7.3)
1 §
Stone length (mm) median, (range) 11 (3 - 24) 11 (3 - 24) 12 (6.6 – 19.5) 0.365
Stone volume (mm3) median, (range) 277 (36-2134) 277 (36–2134) 384.2 (87.5 – 895.1) 0.594
Transverse stone size (mm) median, (range) 7.5 (2.8 - 15.3) 7.4 (2.8 – 15.3) 8 (5.1 - 10) 0.883
Diameter of the ureter proximal of the stone (mm) median, (range)
11 (6 - 28.7)
11.5 (6 – 28.7)
13 (9.7 – 18.8)
0.050
HN (Grade) n, (%) 0 1 2 3 10 (6.8) 105 (71.4) 29 (19.7) 3 (2) 10 (100) 99 (94.2) 24 (82.7) 3 (100) 0 6 (5.8) 5 (17.3) 0
0.075 §
Number of Stone n, (%) Single Multiple 141 (95.9) 6 (4.1) 133 (94.3) 3 (50) 8 (5.7) 3 (50)
0.006 §
SSD (cm) mean ± sd 124.8 ± 23.6 124.6 ± 23.7 126.55 ± 23.2 0.803
UWT (mm) median, (range) 4.2 (1-8.7) 4.1 (1- 8.7) 5.8 (5.3 - 7) <0.001
Number of sessions, median (range) 2 (1-7) 2 (1-7) 3 (2-7) 0.001
Shockwave number, median (range) 3000 (300-3800) 3000 (300-3800) 3375 (2618-3570) 0.094
Shockwave power, mean ± sd 75.7 ± 22.7 74.7 ± 22.1 88.1 ± 21.7 0.054
Ancillary procedures n, (%) None JJ Nephrostomy 135 (91.8) 12 (8.2) 0 127 (94) 9 (75) 0 8 (6) 3 (25) 0
0.048 §
T test in independent groups Ki kare test § Fisher’s Exact Test Mann Whitney U test HU: Hounsfield unite UWT: Ureteral wall thickness SSD:Skin to stone distance HN:Hydronephrosis HU: Hounsfield unite UWT: Ureteral wall thickness SSD:Skin to stone distance HN:Hydronephrosis HU: Hounsfield unite UWT: Ureteral wall thickness SSD:Skin to stone distance HN:Hydronephrosis