Extracorporeal Shock Wave Lithotripsy Treatment of Calculi in Horseshoe Kidneys

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Abstract
From June 1985 to November 1986, 17 patients with calculi in horseshoe kidneys presented to our hospital for evaluation and possible treatment with extracorporeal shock wave lithotripsy. Of these patients 14 were treated with extracorporeal shock wave lithotripsy; the calculi in 2 could not be localized and focused at the F2 focal point, and 1 was asymptomatic and has been followed conservatively. Four patients required repeat extracorporeal shock wave lithotripsy. Adjunctive procedures included preoperative retrograde catheter placement (5 patients), postoperative percutaneous nephrostolithotomy (1), ureteroscopy for ureteral fragments (2) and placement of a double pigtail stent (1). Of 14 patients 11 (79 per cent) have been rendered free of fragments with extracorporeal shock wave lithotripsy and adjunctive measures as needed. We conclude that most patients with calculi in a horseshoe kidney can be managed primarily with extracorporeal shock wave lithotripsy.