title: Stent Position Is More Important than α-Blockers or Anticholinergics for Stent-Related Lower Urinary Tract Symptoms after Ureteroscopic Ureterolithotomy: A Prospective Randomized Study.
abstract: OBJECTIVE
  To evaluate the clinical factors that impact ureteral stent-related lower urinary tract symptoms (LUTS) after ureteroscopic ureterolithotomy, including the stent position and medication.
  
  
  METHODS
  Fifty-three patients who underwent ureteroscopic ureterolithotomy with indwelling a stent were distributed into three groups. On demand analgesics were given to the group 1 (n=18). Daily tamsulosin 0.2 mg was added for group 2 (n=15) and daily tamsulosin 0.2 mg and tolterodine 4 mg was added for group 3 (n=20). The patients were also subclassified into appropriate or inappropriate group according to stent position. All the patients completed a visual analogue scale (VAS) and International Prostate Symptom Score (IPSS) on the 1st and 7th postoperative days. The VAS and IPSS were analyzed according to the medication groups and the stent position.
  
  
  RESULTS
  In the appropriate stent potion group, only the storage symptom scores of groups 2 and 3 on the 1st postoperative day were significantly lower than those of the group 1 (p=0.001). This medication effect on LUTS was not observed in the inappropriate stent position group. In this group, total IPSS (p=0.015) and storage symptom scores (p=0.002) were higher than in the appropriate stent position group on the 7th postoperative day.
  
  
  CONCLUSIONS
  Correct placement of the stent was more important than medication for lessening stent-related storage symptoms.
authors.affiliation: Department of Urology, College of Medicine, Hallym University, Chuncheon, Korea.
authors.forename: Sun Ju
authors.initials: SJ
authors.lastname: Lee
authors.forename: Changhee
authors.initials: C
authors.lastname: Yoo
authors.forename: Cheol Young
authors.initials: CY
authors.lastname: Oh
authors.forename: Yong Seong
authors.initials: YS
authors.lastname: Lee
authors.forename: Sung Tae
authors.initials: ST
authors.lastname: Cho
authors.forename: Seong Ho
authors.initials: SH
authors.lastname: Lee
authors.forename: Dae Yul
authors.initials: DY
authors.lastname: Yang
authors.forename: Sang Kon
authors.initials: SK
authors.lastname: Lee
authors.forename: Jin Seon
authors.initials: JS
authors.lastname: Cho