To compare staged ureteroscopy following initial urinary drainage and stabilization of renal functions using percutaneous nephrostomy or double J stent versus direct ureteroscopy without initial urinary drainage in the treatment of obstructive calcular anuria with acute renal failure due to ureteric calculi in children.
To compare staged ureteroscopy following initial urinary drainage versus direct ureteroscopy without initial urinary drainage in the treatment of obstructive calcular anuria with acute renal failure in children.