Anesthesia and neurotoxicity to the developing brain: The clinical relevance

Abstract

Laboratory work has confirmed that general anesthetics cause increased neuronal apoptosis and changes to the morphology of dendritic spines in the developing brains of animals. It is an effect seen with most volatile anesthetics as well as with ketamine and propofol. The effects are dose dependent and seen over particular periods of early development. There is some evidence that rodents exposed to anesthesia during infancy have delayed neurobehavioral development. There are inherent limitations in translating the preclinical data to human practice but the data cannot be ignored. Some human clinical studies have found evidence for an association between major surgery and changes in neurobehav..