The laryngeal mucosa of cats which had been treated with a lignocaine aerosol spray prior to endotracheal intubation was examined histologically. A degree of oedema and cell damage was apparent. When one side of the larynx was sprayed before intubation and the other side protected in the same cat, cellular damage was greater on the side which received the lignocaine spray. In no cat were the changes considered severe enough to constitute a post-anaesthetic hazard.
RexM.A.E.Laryngospasm and respiratory changes in the cat produced by mechanical stimulation of the pharynx and respiratory tract: problems of intubation in the cat. Br J Anaesth1971; 43: 54–57.
2.
WeaverB.M.Q.Endotracheal intubation in the cat. J Small Animal Pract1969; 10: 9–11.
3.
DonnellyW.H.Histopathology of endotracheal intubation. Arch Path1969; 88: 511–520.
