To compare percutaneous nephrostomy (PCN) versus double J stent (JJ) as an initial urinary drainage in children with obstructive calcular anuria and acute renal failure due to ureteric calculi to identify selection criteria for initial urinary drainage method to improve drainage, to decrease complications and to facilitate subsequent definitive clearance of stones as this comparison is lacking in literature
To compare percutaneous nephrostomy (PCN) versus double J stent (JJ) as an initial urinary drainage in children