Abstract
Purpose: Bilateral renal calculi have traditionally been managed by staged extracorporeal shock wave lithotripsy (ESWL † †Dornier Medical Systems, Inc., Marietta, Georgia.) due to concern about bilateral obstruction. We evaluated the safety and efficacy of synchronous bilateral ESWL in a large series of patients treated at our institution to determine the safety and efficacy of this controversial technique in what is to our knowledge the largest series to date.Materials and Methods: We retrospectively evaluated the records of 120 patients with a mean age of 48 years who underwent bilateral synchronous ESWL between 1987 and 1996. Of the patients 71 (59%) were male. Average followup was 21 months. ESWL was performed using a Dornier HM3† lithotriptor in all cases. Intraoperative technique and postoperative factors were analyzed using the Pearson product moment correlation, the 2-tailed t test and multiple regression analysis.Results: Mean stone size was 13 and 15 mm. on the left and right sides, respectively...
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