To compare the efficacy of ultrasound-guided erector spinae plane block versus ultrasound-guided paravertebral block in pediatric patients undergoing percutaneous nephrolithotomy
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Total consumption of nalbuphine
Timeframe: The first 24 hours postoperatively
Time to first rescue analgesia
Timeframe: The first 24 hours postoperatively