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06:37
An Immature Murine Model of Reversible Unilateral Ureteral Obstruction
Published on: April 4, 2025
865
Simultaneous Bilateral Ureteral Calculi: A New Paradigm for Management
Kymora B Scotland1, Scott G Hubosky2, Ryuta Tanimoto3
1Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada.
Urology
|May 25, 2018
Summary
Simultaneous bilateral ureteral calculi (SBUC) are uncommon and rarely emergent. Most SBUC patients can be managed electively, but require counseling on emergent signs like anuria or acidosis.
Area of Science:
- Urology
- Nephrology
- Emergency Medicine
Background:
- Simultaneous bilateral ureteral calculi (SBUC) can pose a urological emergency due to potential anuria or electrolyte imbalance.
- Conventional practice often dictates immediate intervention for SBUC, yet data on emergent event rates are limited.
Purpose of the Study:
- To define the necessity for emergent intervention in patients with SBUC compared to unilateral ureteral calculi (UUC).
- To analyze the factors contributing to emergent presentations in SBUC patients.
Main Methods:
- A retrospective review of 3800 patients with ureteral stones treated ureteroscopically over 11 years.
- Identification of 42 SBUC cases and comparison with age- and sex-matched UUC patients.
- Analysis of metabolic and infectious parameters to determine the need for emergent intervention.
Main Results:
- Only 1.1% of patients had SBUC (42 cases).
- 26.2% of SBUC patients required emergent management due to metabolic or infectious complications.
- SBUC patients were significantly more likely to require emergent care (OR 2.3) due to anuria and acidosis.
Conclusions:
- SBUC is uncommon, with a minority of cases presenting emergently.
- Elective management is often feasible for SBUC patients with appropriate counseling on warning signs.
- Single-stage bilateral ureteroscopy yields excellent outcomes in selected SBUC patients.
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