title: Do renal cysts affect the success of extracorporeal shockwave lithotripsy? A retrospective comparative study.
abstract: The aim of this study was to assess the effect of simple renal cysts on extracorporeal shockwave lithotripsy (SWL) in patients with calyceal renal calculi. Patients with simple renal cysts >35 mm and ipsilateral renal calculi <20 mm that were treated with SWL constituted group 1 (cyst + calculi). The control group included patients aged >40 years that had renal calculi <20 mm and no cysts that were treated with SWL. The 2 groups were compared according to age, gender, body mass index, calculi size, localization, and density, the calculi fragmentation rate, and the percentage of stone-free patients. Mean cyst size in group 1 was 44.04 ± 9.08 mm. Mean age in group 1 was 61.4 ± 10.2 years versus 56.9 ± 8.2 years in the control group; the difference was significant (P = 0.045). There were not any other significant differences between the 2 groups, except for the stone-free rate (P > 0.05), which was 33.3% in group 1 and 68.2% in the control group (P = 0.017). The presence of renal cysts in a patient with calculi requires that an individualized treatment plan be devised, so as to provide the patient with the most effective treatment.
authors.affiliation: Department of Urology, Abant Izzet Baysal University Faculty of Medicine, 14200 Bolu, Turkey.
authors.forename: Adnan
authors.initials: A
authors.lastname: Gücük
authors.forename: Ufuk
authors.initials: U
authors.lastname: Oztürk
authors.forename: Uğur
authors.initials: U
authors.lastname: Uyetürk
authors.forename: Eray
authors.initials: E
authors.lastname: Kemahlı
authors.forename: Güven
authors.initials: G
authors.lastname: Akın
authors.forename: M Abdurrahim
authors.initials: MA
authors.lastname: Imamoğlu
authors.forename: Ahmet
authors.initials: A
authors.lastname: Metin