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Efficacy & Safety of High Power vs. Low Power Holmium Laser in Mini-PCNL for Large Renal Stones
Sponsor: Mansoura University
Summary
The investigator will compare between holmium laser setting during miniPCNL for renal stones as regard safety \& efficacy
Official title: High Pulse Power vs. Low Pulse Power Holmium: YAG Laser in Mini-Percutaneous Nephrolithotomy for Management of Renal Stones > 20 mm: A Randomized Controlled Trial
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
70
Start Date
2026-03-15
Completion Date
2027-01-30
Last Updated
2026-02-06
Healthy Volunteers
No
Conditions
Interventions
mini percutaneous nephrolithotomy
Under fluoroscopic guidance, an 18G Chiba needle is used to access a posterior calyx or the appropriate target calyx). Contrast confirms the collecting system entry. Dilation is performed, typically up to 14-20 Fr. A mini-nephroscope (15 Fr) is inserted through an appropriate sheath. Irrigation is maintained using gravity or low-pressure systems. Holmium: YAG laser is used for lithotripsy. high pulse power will be capped at 40 W, while low pulse power settings will remain between 10-20 W. Fragments are evacuated via vacuum cleaner effect or basket through the sheath.