Comparison of routine postoperative stenting versus no stenting after ureterorenoscopy for ureteral stones to assess the necessity and impact on complication risk.
After a ureteroscopy (URS) for the removal of ureteral stones, a double-J stent is routinely placed. Among other measures, this is intended to prevent pain caused by ureteral swelling, small residual fragments, blood clots, and potential drainage obstructions, which could lead to colic or fever. However, the evidence supporting the benefit of this practice is limited. At the same time, many patients report discomfort due to the stent (e.g., flank pain, dysuria, frequent urination, hematuria), which can significantly impact their quality of life.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
60
Ureterorenoscopy without consecutive DJ-stent insertion.
Transurethral catheter insertion
Kantonsspital Baden AG
Baden, Switzerland
RECRUITINGPostoperative pain assessment
Assessment of postoperative pain will be conducted using the Visual Analogue Scale (VAS) and the study-specific mobile application HEATMAP (Byldr GmbH, Switzerland). The primary outcome is the difference between the pain scores recorded by the VAS and those recorded by the HEATMAP application at predefined postoperative time points \[both measured on a scale from 1-10, with higher scores indicating greater pain\].
Time frame: up to 4 weeks postoperative
Length of stay [days]
Time from surgery to discharge in days \[d\]
Time frame: During the hospital stay, on average 2 days
Pain Assessment
Assessment of pain level via Visual Analogue Scale (VAS), scale \[1-10, higher scores indicates greater pain\]
Time frame: pre-/peri-/postoperative
Pain Management
Documentation of pain management \[according to the WHO Analgesic Ladder, 1-4, higher scores mean more intense pain treatment\]
Time frame: pre-/peri-/postoperative
Secondary need of double-J catheter
(Please note, this applies only for patients that where in the intervention group.) Patient received a double-J catheter, binary \[yes/no\]
Time frame: up to 4 weeks postoperative
Procedure related readmissions
Readmission that can be linked to the URS, binary \[Yes/No\]
Time frame: up to 4 weeks postoperative
Procedure related reoperations
Reoperation that can be linked to the URS, binary \[Yes/No\]
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Time frame: up to 4 weeks postoperative
Comprehensive Complication Index
Any complication that occurred within 30 days post surgery, Scale \[from 0 (no complication) to 100 (death)\]
Time frame: up to 4 weeks postoperative