Stent Removal After Ureteric Stone Treatment
For clinically stable patients after uncomplicated ureteroscopy (URS) for ureteric stones, stents should be removed at 5-7 days post-procedure, or stenting can be omitted entirely if the procedure was truly uncomplicated. 1, 2
When Stenting is Optional (Can Be Omitted)
Routine stenting after uncomplicated URS is not necessary 1, 2. The 2007 and 2016 AUA guidelines, along with the 2025 EAU guidelines, consistently emphasize that stenting following uncomplicated ureteroscopy is optional, as multiple randomized studies demonstrate safety without routine stenting 1, 3, 2.
Criteria for Omitting Stents:
- No ureteral injury or perforation during procedure
- No significant bleeding
- Complete or near-complete stone clearance
- No stricture identified
- Normal anatomy
- Single procedure without complications 1, 4
Recent high-quality evidence from 2023 shows that omitting stents after uncomplicated proximal ureteral and renal stone treatment results in less pain, fewer irritative urinary symptoms, reduced narcotic use, and fewer missed work days compared to routine stenting, with similar complication rates 4.
When Stenting is Mandatory
Clear indications requiring stent placement include: 1, 2
- Ureteral injury or perforation
- Ureteral stricture
- Solitary kidney
- Renal insufficiency
- Large residual stone burden
- Significant bleeding
- Suspected or confirmed infection/UTI
- Pregnancy
Optimal Stent Duration When Placed
If a stent is placed, the optimal dwell time is 5-7 days 5, 6, 7. This recommendation is based on recent high-quality research:
- Stents removed at ≤4 days have significantly higher rates of postoperative emergency department visits compared to those removed at ≥5 days 5
- Stent duration ≤7 days is associated with more pain immediately after removal, particularly in younger patients and females 7
- No difference in unplanned visits occurs between 4-6 days versus >6 days, suggesting 5-7 days is the optimal window 6
Stent Removal Methods:
Self-removal with extraction strings is safe and effective when dwell time is appropriate 8:
- Success rate of 79% for home self-removal
- Low complication rates (3% dislodgement, 1.8% string detachment)
- 90% of patients willing to repeat the experience
- Significant cost savings by avoiding cystoscopy 8
Common Pitfalls to Avoid
- Removing stents too early (<5 days): Increases emergency department visits due to inadequate ureteral dilation 5
- Routine stenting after uncomplicated procedures: Causes unnecessary morbidity including pain, irritative symptoms, UTI risk, and need for secondary procedures 1, 4
- Leaving stents >7 days unnecessarily: While safer than early removal, prolongs patient discomfort without additional benefit in uncomplicated cases 6, 7
Special Considerations
For shock wave lithotripsy (SWL): Routine stenting is not recommended and does not improve stone-free rates 1, 2
Stent-related symptoms management: Alpha-blockers and anti-muscarinic therapy can reduce stent discomfort when stenting is necessary 9
Infection concerns: If purulent urine is encountered during the procedure, abort stone removal, establish drainage (stent or nephrostomy), and continue antibiotics 3