[Significance of percutaneous nephrostomy in calculous anuria in children. Apropos of 3 cases].

Percutaneous nephrostomy is a new and very efficient technique of the drainage of the obstructed kidney. It is better indicated to treat obstructive anuria in the child especially if the obstructive agent is a bilateral stone. Having performed such method successively in 3 patients suffering of calculus anuria, the author tries to point out its advantages and review literature data. Thus, this technique allows prompt drainage of urine and removes emergency in case of infected intra-renal retention. It takes an important part in diagnosis by permitting dye injection in the drained upper urinary system. It could also inform about residual value of the desobstructed kidney and predict changes of its potential recovery. It represents lastly, a first step for in-situ treatment of the stone.