Infectious Staghorn Stones Treated with Extracorporeal Shock Wave Lithotripsy and Hemiacidrin

Thirty patients with staghorn stones were treated with a combination of extracorporeal shock wave lithotripsy (ESWL) followed by hemiacidrin irrigation. Following the insertion of one or two small percutaneous nephrostomy catheters and a double-J stent, disintegration of the stone was performed with a Dornier HM lithotripter equipped with a 15.6 cm ellipsoid and standard generator (80 nanofarad) system. Immediately after ESWL, irrigation with 10% solution of hemiacidrin was initiated. Treatment was continued until the patients were either stone free or only had small residual fragments no longer affected by hemiacidrin.