The effect of preoperative ureteral stenting in retrograde Intrarenal surgery: a multicenter, propensity score-matched study

BMC Urology

Juhyun Park¹  Luck Hee Sung²  Chang Wook Jeong³  Hyeong Dong Yuk³  Sung Yong Cho³ 

[1] Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea;Department of Urology, Inje University Sanggye Paik Hospital, 1342 Dongil-ro, Nowon-gu, 01757, Seoul, South Korea;Department of Urology, Seoul National University Hospital, 101 Daehak - ro, Jongno - gu, 03080, Seoul, Republic of Korea;

关键词: Preoperative ureteral stenting;    Renal stone;    RIRS;    Ureteral access sheath;    Ureteral stent;    Urolithiasis;   

DOI  :  10.1186/s12894-020-00715-1

来源: Springer

【 摘 要 】

BackgroundStent placement before retrograde intrarenal surgery (RIRS) can theoretically expand the ureter to improve access and remove stones. The purpose of this study was to investigate the effect of preoperative ureteral stenting on access and surgery.MethodsWe retrospectively analyzed patients who underwent RIRS between January 2010 and December 2016 at multiple centers. The patients were divided into two groups based on whether or not a ureteral stent was inserted preoperatively. The characteristics of the stone (size, number, density, and location), the success rate of the access sheath placement, perioperative complications, operative times, hospitalization periods, the period for which the stents remained, postoperative urinary tract infection rates, stone-free rates, and additional treatment rates were analyzed.ResultsOverall, 727 patients were included in the study (113 were pre-stented and 614 were non-stented). The median stone size was 12.2 mm. The overall stone-free rate (SFR) was 85.8% for the pre-stented group and 83.2% for the non-stented group, showing no significant (p = 0.498) difference between the two groups. Preoperative ureteral stenting improved the success rate of sheath placement (93.8% vs. 85.3%, p = 0.023) during surgery. The access sheath size in participants in the pre-stented group showed a tendency to be larger than that in participants in the non-stented group. However, there were no differences in perioperative complications, operative times, additional treatment rates, and stone-free rates.ConclusionsAlthough preoperative ureteral stenting did not affect operative outcomes, it increased the success rate of access sheath placement. Depending on the patient’s characteristics, preoperative ureteral stenting can be considered as an adjunctive option when access sheath insertion is considered during RIRS.

【 授权许可】

CC BY