This observational study compares the effects of spinal versus general anesthesia on the perioperative systemic inflammatory response in adults undergoing PCNL. Routine clinical laboratory values (NLR, RDW, LAR) obtained preoperatively and postoperatively will be recorded to evaluate between-group and within-group changes. No additional blood sampling will be performed beyond standard care.
Age range
18 Years – 99 Years
Sex
ALL
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The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Change in Neutrophil-to-Lymphocyte Ratio (ΔNLR)
Timeframe: Baseline (≤6 hours preoperative) and 24 hours postoperatively