Early ureteroscopic lithotripsy in acute renal colic caused by ureteral calculi

Purpose We aimed at comparing the success and complications of early semirigid ureteroscopy (URS) and elective URS in ureteral calculi with renal colic that do not respond to analgesics. Methods We retrospectively analyzed the data of 690 patients with obstructive ureteral stones who underwent URS with stone retrieval. 247 patients who underwent early URS within the first 12 h were classified as group I and 443 patients who underwent elective URS as group II. Both groups were compared in terms of age, sex, creatinine, eGFR, stone size, laterality, location and number of stones, type of lithotriptor, presence of hydronephrosis and success and complication rates. Results The mean age of the patients was 50.4 (18-89 years) (p > 0.05). There was no statistically significant difference between the groups in terms of age, eGFR, side, presence of hydronephrosis, fever, mucosal damage, stone migration, perforated ureter, ureteral avulsion, ureteral stent insertion at the end of the surgery and sepsis (p > 0.05). Both groups had male dominance (p > 0.05). Creatinine was significantly lower in Group I (p < 0.05). The mean stone size was also significantly lower in Group I ( p < 0.05). Middle and proximal ureteral calculi were more common in Group II (p < 0.05). Multiple stones were higher in Group II (p < 0.05). The dominant type of lithotriptor used was pneumatic in Group I and laser in Group II (p < 0.05). Stone-free rates (SFRs) were higher in Group I (98% vs 90% in the first month) (p < 0.05). Postoperative hematuria and infection were more common in Group II (p < 0.05). Conclusions In selected cases, early ureteroscopy is an effective and safe method for distal ureteral calculi smaller than 10 mm that are painful and resistant to analgesic treatment.