Endoscopic transvesical lower ureterolithotomy

Transurethral ureterocystostomy

Management of distal ureteric obstruction because of impacted stone, malignancy or scarred orifice using conventional methods may be cumbersome or may fail. Transurethral ureterocystostomy, performed by direct vision using resectoscope and Colling's knife in combination with fluoroscopic X-ray control, has solved the problem in seven patients with stones, two with prostatic cancer and one with scarred orifice. Thus, temporary or permanent transurethral ureterocystostomy can be recommended in selected cases of obstruction of the distal ureter by stone, malignancy or scar.

Endoscopic transvesical extramural ureterolithotomy

The technique of endoscopic transvesical extramural ureterolithotomy for calculi impacted in the lower ureter is described. Ten patients are presented in whom calculi could not be extracted using conventional methods; 9 of the 10 calculi were successfully removed using this approach with no long-term complications.