La recherche des causes du calcul coralliforme

A thorough metabolic evaluation of all staghorn stone patients seems justified, considering the results obtained by the study of 27 such cases. Pak's ambulatory screening test, slightly modified, was used. This allowed the finding of a hypercalciuria in more than 50% of the cases, a hyperuricosuria in 63% of the cases and a hyperoxaluria in one case out of five