Anaesthesia for retinal detachment

doi:10.1136/bmj.39605.447743.3A

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A Hunningher, specialist registrar in anaesthesia,
R Hacking, consultant in anaesthesia

¹Moorfields Eye Hospital, London EC1V 2PD

AHunni{at}blueyonder.co.uk

Nitrous oxide gas (N₂O) rather than volatile anaesthetic agents should be avoided in the management of retinal detachment.1 Nitrous oxide is highly insoluble in blood and can diffuse and expand into gas filled spaces because it is 40 times more soluble than nitrogen. Volatile anaesthetic agents are liquid at room temperature but evaporate easily for …