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Nephrotoxicity and Modern Volatile Anesthetics: A Narrative Review
Benedicte Hauquiert1, Aurelien Gonze1, Thibault Gennart1
1ICU, CHU UCL Godinne Namur, UCL Louvain Medical School, 5530 Yvoir, Belgium.
None:
Volatile anesthetics, while increasingly utilized in intensive care medicine, are associated with significant renal adverse effects. A critical safety concern-particularly with sevoflurane-involves its potential impact on renal function. Pathophysiologically, inorganic fluoride levels exceeding 50 µmol/L are recognized as a threshold for nephrogenic diabetes insipidus, a condition generally considered reversible. Additionally, the sevoflurane degradation product "compound A" has been implicated in direct renal tubular and glomerular toxicity. Specifically, exposure has been correlated with glomerular damage, evidenced by albuminuria, as well as injury to both proximal and distal tubules, indicated by elevated levels of α-glutathione-S-transferase. Postprandial glycosuria may also be observed. Unlike nephrogenic diabetes insipidus, the structural damage induced by compound A may result in irreversible renal impairment.
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