Suction mini-percutaneous nephrolithotomy versus standard percutaneous nephrolithotomy for the management of 2–4 cm kidney stones: study protocol for an international, multicenter, parallel-group, noninferiority, randomized controlled trial

Key Points

• This trial aims to assess whether suction mini-PCNL is as effective as standard PCNL for managing 2-4 cm kidney stones.
• International multicenter design
• Parallel-group randomization
• Randomized controlled trial format
• Focus on 2-4 cm kidney stones
• Aims to provide high-level evidence for noninferiority
• Evaluation of patient outcomes and complications expected.