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Year : 2017  |  Volume : 7  |  Issue : 1  |  Page : 19-27

A comparison of renal responses to sevoflurane and isoflurane in patients undergoing donor nephrectomy: a randomized controlled trial

Department of Anesthesiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA

Correspondence Address:
Alexander F Bautista
Department of Anesthesiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2045-9912.202906

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Sevoflurane and isoflurane are volatile halogenated ether widely used in anesthesia. Both have comparable potency and easy titratability but sevoflurane has lower pungency and results in faster patient recovery. Isoflurane, however, is more affordable. The nephrotoxicity of sevoflurane is undisputed but studies on isoflurane nephrotoxicity are lacking. The objective of this paper is to determine the overall nephrotoxicity profile of sevoflurane and isoflurane in donor nephrectomy patients using the renal function markers - nuclear glomerular filtration rate (GFR), serum creatinine, urine protein-to-creatinine ratio, proteinuria, and glucosuria. A randomized comparative study of postoperative renal functions in donor nephrectomy patients who had received either low-flow (< 1 L/min) sevoflurane or isoflurane were analyzed. The renal parameters were repeated 72 hours post anesthesia. Forty-seven subjects (46%) were randomized to receive isoflurane while fifty-five received sevoflurane (54%). Between the two anesthetic groups, there was no significant difference in terms of serum creatinine, total GFR, or nuclear GFR. There was a statistically higher proportion of patients with urine protein-to-creatinine ratios of 0.2 and above in the isoflurane group (64% vs. 38%), while more patients in the sevoflurane group had ratios above 0.2 (62% vs. 36%, P < 0.05). The type of anesthetic agent was not an independent predictor of increasing serum creatinine, total GFR and urine protein-to-creatinine ratio and nuclear GFR. In conclusion, the overall nephrotoxicity profile of sevoflurane and isoflurane-treated donor nephrectomy patients is minimal.

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