The treatment of patients with large
calculi, formed on both ends of the long-standing
stent, remains difficult problem of modern urology. We observed 6 patients with long-term (16 to 24 months) standing
stents. Large
calculi on both ends of the drain were detected in 5 patients, fragmentation of
stent--in 1 patient. Indication for stenting was
ureteral calculus in 4 patients, staghorn stone of the left kidney in one pregnant woman 26 years old, and the
stent was installed during orthotopic cystoplasty in 1 patient. At the first stage, contact
laser lithotripsy of
calculus on cystic end of the
stent was performed, and distal portion was removed with
forceps. 2-3 weeks after, PCNL was performed and renal end of the
stent was removed. Patient with fragmentation of
stent underwent ureteroscopy, and parts of the drainage were removed. To remove the
stent, on average 1.8 endourological intervention was required. Results of operations in all cases were successful. Endourological operations are an effective method for the treatment of patients with large
calculi, formed at both ends of the "forgotten"
stents.