We report the results on 47 patients treated for staghorn renal calculi (partial and complete) by PCN-monotherapy and PCN-debulking. According to Rocco's classification the renal stones were 34 C4 and 13 C5. The PCN-monotherapy was used for 34 C4 and 6 C5, and showed itself to be resolutive in 83.4%. We resorted to the PCN-debulking in 7 cases, all C5: subsequent treatment with Extracorporeal Shock Wave Lithotripsy (ESWL) was performed or planned in other Centres. We emphasize the feasibility of PCN in staghorn renal calculi for the low incidence of major complications and for sometimes reducing the wait, both before and after treatment of complex renal lithiasis.
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