Effect of non-therapeutic factors on the efficacy of ureteral stone removal (is it suitable for stone removal?)

      The treatment outcome of 155 ureteral stone patients after 2-3 weeks of stone removal treatment was analyzed to assess the effect of 7 non-treatment factors on stone removal outcome, including age, gender, degree of hydronephrosis, time of onset before stone treatment, location of stone, stone length diameter, and stone cross diameter.      It was found that after 2-3 weeks of treatment, there was no significant difference in the effect of gender and age on the treatment effect of ureteral stone removal. The closer the stones were to the distal ureter, the shorter the time of stone onset before treatment, and the less severe the degree of hydronephrosis the better the treatment outcome. The success rate of stone removal for ureteral stones with a stone length of ≤4 mm was more than 90%, and the success rate was about 50% when the stone length was 5 mm-6 mm; the success rate was less than 10% when the stone length was ≥9 mm or the stone cross diameter was ≥6 mm.      It can be seen that patients with ureteral stones should receive treatment as early as possible; when lithotripsy is ineffective for 2-3 weeks, they should be seen in urology and consider extracorporeal lithotripsy or ureteroscopic surgery; lithotripsy is not suitable for ureteral stones ≥9 mm in length or ≥6 mm in cross diameter.