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Table 4 Operative characteristics of 51 patients with proximal ureteric stones exposed to ureteroscopic Ho:YAG laser lithotripsy classified as small (<10 mm) and large (>10 mm) stones

From: Efficacy and safety of Ho:YAG Laser Lithotripsy for ureteroscopic removal of proximal and distal ureteral calculi

Operative characteristics
  Proximal ≤ 10 mm (n = 34) Proximal > 10 mm (n = 23) P value
Ureteroscope    0.778
Semirgid 7 (20.6) 5 (21.7)
Flexible 2 (5.9) -
Combination 25 (73.5) 18 (78.3)
Mean OR time (min.) 80.7 ± 6.5 82.3 ± 5.9 0.866
Mean laser time 349.5 ± 69.9 434.3 ± 66.9 0.243
Mean total energy (J) 2480.3 ± 585.8 2619.3 ± 547.1 0.483
Postoperative stent (n) 31 (91.2) 19 (82.6) 0.345
Intra operative complications (n) 1 (2.9) 0 (0) 0.431
Post operative complications (n) 1 (2.9) 0 (0) 0.431
Overall SFR per patient 28/31 (90.3) 20/20 (100) 0.163
SFR after first treatment per patient 25/31 (80.6) 17/20 (85) 0.704
SFR after second treatment per patient 28/31 (90.3) 20/20 (100) 0.163
Laser rate 1,1 ± 0,1 1,2 ± 0,1 0.675