Effect of JJ stent on outcomes of extracorporeal shock wave lithotripsy treatment of moderate sized renal pelvic stones: A randomized prospective study

• Published in: Actas urológicas españolas (English ed.) 2019-10, Vol.43 (8), p.425-430
• Main Authors: Yazici, O, Kafkasli, A, Erbin, A, Bilal Hamarat, M, Cubuk, A, Sarilar, O, Sarica, K
• Format: Article
• Language: eng ; spa
• ISSN: 2173-5786
• DOI: 10.1016/j.acuro.2019.03.009

PURPOSETo evaluate the effect of JJ stents on SWL treatment of moderate (15-25mm) renal pelvic stones. MATERIALS AND METHODSBetween 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. RESULTSThere 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