Acute kidney injury (AKI) after perioperative antibiotic prophylaxis (PAP) with gentamicin (n = 77) or cefuroxime (n = 72). Severity of AKI was graded according to KDIGO (Kidney Disease: Improving Global Outcome) criteria. The asterisks indicate a significant difference (p = 0.002) in the distribution of the categories: no AKI, AKI grade 1, AKI grade 2, and AKI grade 3. AKI, acute kidney injury; RARP, robot-assisted radical prostatectomy.