Abstract：Objective To investigate the feasibility and safety of using 6F urinary tube as a stopper in transurethral holmium laser lithotripsy.Methods The clinical data of 35 patients with lower ureteral calculi who underwent transethral holmium laser lithotripy admitted to our hospital from December 2019 to March 2020 were retrospectively analyzed. Among them, 17 patients did not use the occluder as the control group, and 18 patients used the 6F urinary tube as the stone occluder as the observation group. General data and clinical outcomes were compared between the two groups.Results The retrograde displacement of stones in observation group was less than that in control group, and the difference was statistically significant (P=0.002). There were no significant differences in renal or ureteral hydronephrosis, calculus retroentry to kidney using soft lens, ureter damage, stone residue 24 h after surgery, and SIRS 24 h after surgery between the two groups (all P>0.05).Conclusions 6F urinary tube can be used in holmium laser surgery for middle and lower ureteral calculi after simple modification, which significantly reduces intraoperative stone displacement, is safe, feasible and economical.
