Impact of Stone CT Value on Ureteroscopic Holmium Laser Lithotripsy Outcomes in Kidney Stone Treatment

Kidney stone disease (KSD) is a prevalent and significant global urological issue, and ureteroscopic holmium laser lithotripsy (UHLL) is a primary treatment option. This study aimed to assess the impact of stone computed tomography (CT) value on the outcomes of UHLL in treating KSD. A retrospective analysis was conducted on the clinical data of 101 patients who underwent UHLL at our hospital between September 2022 and December 2023. Patients were categorised into two groups based on stone CT values. Demographic characteristics, intraoperative factors, stone clearance, and complications were evaluated and compared between the low- and high-CT groups. The high-CT group had significantly longer intraoperative durations than the low-CT group ( < 0.001). Fragmentation time was considerably higher in the high-CT group ( < 0.001). Stone clearance rates after three postoperative months were substantially higher in the low-CT group (98.04%) than in the high-CT group (84.00%) (χ = 4.523, = 0.033). Although the low-CT group had a lower complication rate, the difference was insignificant ( = 0.356). CT values showed a positive correlation with durations of operation and fragmentation ( < 0.01), and a negative correlation with stone clearance ( < 0.05). Stone CT values are key factors influencing the procedural outcomes and postoperative complications of UHLL.