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Retrospective Study
©Author(s) (or their employer(s)) 2026.
World J Clin Pediatr. Mar 9, 2026; 15(1): 115147
Published online Mar 9, 2026. doi: 10.5409/wjcp.v15.i1.115147
Table 1 Demographic and clinical characteristics of the study population (n = 250), n (%)/mean ± SD
Parameter
Value
Mean age (years)9.8 ± 4.1
Gender
    Boys135 (54)
    Girls115 (46)
Stone location
    Distal ureter76 (30.4)
    Mid-ureter70 (28)
    Proximal ureter104 (41.6)
Mean stone size (mm)10.2 ± 0.1
Fragmentation method
    Laser lithotripsy145 (58)
    Pneumatic lithotripsy105 (42)
Stone-free rate (%)92
Complication rate31 (12.4)
Average surgery duration (minutes)42.8 ± 16.3
    Laser lithotripsy40.5 ± 18.5
    Pneumatic lithotripsy45.1 ± 11.3
Stent placement rate30 (12)
Mean hospital stay (days)2.3 ± 0.5


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