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Updated: Jul 11, 2026

A Two-Step Method for Percutaneous Transhepatic Choledochoscopic Lithotomy
Published on: September 13, 2022
[Infective lithiasis. Treatment and complications]
F J Ruiz Marcellan1, L Ibarz Servio, D Salinas Duffo
1Centro de Litiasis Renal, Urología, Instituto Dexeus, Barcelona, España.
This study analyzed staghorn stone treatments in cadaver kidneys. Extracorporeal lithotripsy is recommended for large caliceal stones, while percutaneous nephrolithotomy (PNL) is best for large pyelic stones.
Area of Science:
- Nephrology
- Urology
- Surgical Technology
Context:
- Staghorn calculi present complex treatment challenges.
- Understanding stone surface and distribution is crucial for effective management.
- Previous treatment strategies varied, necessitating refined criteria.
Purpose:
- To establish treatment guidelines for staghorn stones based on stone characteristics.
- To evaluate the efficacy of extracorporeal lithotripsy versus percutaneous nephrolithotomy (PNL).
- To correlate stone location and size with optimal surgical intervention.
Summary:
- A retrospective analysis of 344 staghorn stone cases treated between 1985 and 1992.
- Patients predominantly had positive urinary cultures (Proteus) and magnesium ammonium phosphate stones.
- Extracorporeal lithotripsy was used in 80.81% of cases, PNL in 19.9%.
Impact:
- Provides evidence-based criteria for selecting between extracorporeal lithotripsy and PNL.
- Suggests combined surgical and medical treatment for optimal outcomes in staghorn lithiasis.
- Aims to improve treatment success rates and reduce recurrence for complex kidney stones.
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