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Yazici O. et al., 2019: Effect of JJ stent on outcomes of extracorporeal shock wave lithotripsy treatment of moderate sized renal pelvic stones: A randomized prospective study

Yazici O, Kafkasli A, Erbin A, Bilal Hamarat M, Cubuk A, Sarilar O, Sarica K.
Department of Urology, Haseki Training and Research Hospital, Estambul, Turquía. Department of Urology, Kucukyali Delta Hospital, Estambul, Turquía. Department of Urology, Konya Training and Research Hospital, Iconio, Turquía.

Abstract

PURPOSE: To evaluate the effect of JJ stents on SWL treatment of moderate (15-25mm) renal pelvic stones. MATERIALS AND METHODS: Between January 2016 and December 2017, a total of 152 adult patients who were planned to undergo SWL for a single radiopaque renal pelvic stone were included in the study. Patients with solitary kidney, congenital abnormality, skeletal tract abnormalities, previous urinary system surgery, hydronephrosis (grade 2 or more), untreated urinary tract infection, bleeding disorder, and suspected pregnancy were excluded. The remaining 114 patients were randomly divided into two groups; non-stented and stented. Twenty-two patients whose stone could not be fragmented despite 3 consecutive sessions were also excluded from the study. A total of 92 patients (54 non-stented and 38 stented) were included in the final analysis. RESULTS: There was no significant difference in terms of age, sex, body mass index, renal parancyhimal thickness, hydronephrosis, skin-to-stone distance, Hounsfield units, and stone size between the groups. Success was significantly higher in the stented group than in the non-stented group (71% vs. 39%, P=.002). In stone-free patients, the number of emergency department visits and analgesic tablet consumption was significantly lower in the stented group than in the non-stented group (P<.001 and P<.001, respectively). In non- stone-free patients, analgesic tablet consumption was significantly lower in the stented group than in the non-stented group (P=.004). CONCLUSIONS: Pre-stenting before SWL treatment of moderate sized renal pelvic stones has some advantages in terms of success, emergency service visits, and analgesic tablet consumption.

Actas Urol Esp. 2019 Jun 6. pii: S0210-4806(19)30075-0. doi: 10.1016/j.acuro.2019.03.009. [Epub ahead of print] English, Spanish.

 

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Peter Alken on Monday, 16 September 2019 08:58

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