Combined Treatment of Branched Calculi by Percutaneous Nephrolithotomy and Extracorporeal Shock Wave Lithotripsy

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Abstract
Eighty-seven patients with branched renal calculi were treated by a combination of percutaneous nephrolithotomy and extracorporeal shock wave lithotripsy. Stone debulking was achieved by percutaneous nephrolithotomy and residual stone fragments were destroyed by shock wave lithotripsy. Of the patients 70 (80 per cent) required 2 to 3 treatments. Results after 3 months indicated that 58 patients were free of stones, 3 had recurrent stones and 12 had disintegrated stone particles (less than 3 mm.) in the collecting system, while 13 were lost to followup. One patient had undergone nephrectomy. This treatment plan minimized the disadvantages of either technique when used alone and made open operative intervention unnecessary. Procedural and fluoroscopy times were reduced drastically compared to reported data on percutaneous nephrolithotomy only. We believe that more than 90 per cent of all branched calculi can be treated with this combined technique.