Abstract
In selected cases, RIRS management of calyceal diverticula and its related problems has been shown to be more efficacious than ESWL monotherapy and avoids the potential complications and discomfort of percutaneous and laparoscopic procedures. The advent of the Holmium laser energy source, with innovations such as the flexible ureteroscope and the tipless stone basket, have expanded the role of RIRS in the management of calyceal diverticula and associated problems. Presently, RIRS is the initial treatment choice for the management of low to moderate stone burdens that are contained in calyceal diverticula or trapped behind any narrowed intrarenal segment (e.g., infundibular stenosis). If repair of the stenotic segment is not successful, thereby excluding stone treatment, then under the same anesthesia, the patient undergoes a percutaneous antegrade renal surgery. The authors feel that the percutaneous approach as a first choice is more suitable for posteriorly located diverticula with a large stone burden. In selected cases of anteriorly located diverticula with large stone burdens, the laparoscopic approach is more expedient.
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