Investig Clin Urol.  2017 Nov;58(6):440-446. 10.4111/icu.2017.58.6.440.

Impact of loop-tail ureteral stents on ureteral stent-related symptoms immediately after ureteroscopic lithotripsy: Comparison with pigtail ureteral stents

  • 1Department of Urology and Andrology, Kansai Medical University General Medical Center, Osaka, Japan.
  • 2Department of Urology and Andrology, Kansai Medical University, Osaka, Japan.


To evaluate urination-related quality of life (QoL) in patients with an indwelling ureteral stent immediately after ureteroscopic lithotripsy (URSL) for upper urinary calculi. We compared the effects of loop-tail and pigtail ureteral stents on urination-related QoL.
Of 135 patients who underwent URSL between May 2014 and March 2015 at our hospital, we retrospectively analyzed the records of 70 patients (42 men, 28 women; median age, 63 years) in whom the stent tail was positioned inside the bladder without crossing the midline and who completed the core lower urinary tract symptoms score (CLSS) questionnaire pre- and postoperatively.
There were significant differences in incomplete emptying (p=0.048) and bladder pain (p=0.041) between patients with loop-tail versus pigtail ureteral stents after URSL. In the multivariate analysis, stent type had a stronger association with incomplete emptying (p=0.022) and bladder pain (p=0.018) than age, sex, body mass index, stent side, operation time, diameter of ureteral access sheath, and stent type.
Patients with loop-tail ureteral stents had better urination-related QoL in the immediate post-URSL stage than patients with pigtail stents.


Lower urinary tract symptoms; Stents; Ureter

MeSH Terms

Body Mass Index
Lower Urinary Tract Symptoms
Multivariate Analysis
Quality of Life
Retrospective Studies
Urinary Bladder
Urinary Calculi


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