Effects of Sevoflurane Anaesthesia on Renal Function

The effects of sevoflurane on renal function were investigat-ed in 34 patients anaesthetized with sevoflurane. Based on preoperative serum creatinine levels, patients were classi-fied into three groups: Group 1 (n =25) had normal renal function (serum creatinine < 1.0 mg/dl); Group 2 (n =5) had slight renal dysfunction (1.0:s serum creatinine < 1.5 mg/dl); Group 3 (n =4) had moderate renal dysfunction (serum ere-atinine ~ 1.5 mg/dl). Serum creatinine, blood urea nitrogen and urine volume were measured preoperatively, and at Days 0,1,2, 7 and 28 after operation. Serum creatinine and blood urea nitrogen showed no significant postoperative dif-ferences (P < 0.05) in each group, whereas urine volume showed a significant increase until Day 2, with no further changes thereafter. Our results suggest that sevoflurane anaesthesia causes no significant renal damage in patients with normal and insufficient renal function under normal-duration anaesthesia within 3- 4 h