Theseus, the Labyrinth, and the Minotaur of anaesthetic-induced developmental neurotoxicity

When Theseus set sail to slay the mighty Minotaur, he likely spared a thought for the difficulty in navigating the Labyrinth that surrounded his foe. The search for therapies for anaesthetic-induced developmental neurotoxicity shares a similar mythical context. In our version of these events, Prince Theseus is the cure (potentially played by dexmedetomidine), the Minotaur is sevoflurane-induced neurotoxicity and the Labyrinth (a maze of confounding factors) is represented by physiological aberrations. In this issue of the British Journal of Anaesthesia, two reports¹² appear to arrive at contradictory conclusions regarding the success of dexmedetomidine in combating sevoflurane-induced developmental neurotoxicity in neonatal rat pups. The two research teams are to be congratulated for reporting the results in a manner that enables the reader to appreciate the entire gamut from protection against organ toxicity to toxicity to the entire organism because of the clarity and detail in their reports. However, the physiological derangements observed in these studies, and their contradictory findings, lead to labyrinthine interpretation. Readers should also refer to the accompanying editorial on the same studies by Vutskits and Sall³ when considering these issues.

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