Treatment of Renal Stones by Extracorporeal Shock Wave Lithotripsy

Based on an extensive review of the literature and our own clinical experience, this article attempts to present clear guidelines for the management of various kidney stones that will be acceptable to clinical urologists and their patients. Regarding our own patients, we compared different studies and discussed the results concerning the anatomical kidney situation, stone size, stone localization and observation time. Stone-free rates of patients with calyceal diverticula calculi range from 4 to 58%, with an increase after longer follow-up periods. According to the importance of residual fragments following extracorporeal shock wave lithotripsy (ESWL), we have to distinguish between clinical insignificant residual fragments and clinical significant residual fragments. 24 months following ESWL, stone passage occurs as a continuous process, and if there are no clinical symptoms, any endoscopic procedure should be considered as over-treatment. Newer ESWL technology has increased the percentage of clinically insignificant residual fragments. We consider percutaneous nephrolithotripsy in most of the patients with renal calculi smaller than 30 mm in diameter only as second-line therapy.

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