Local anaesthesia for cannulation.

Local Anaesthesia.

This article describes current concepts in the mechanism of action of local anaesthetic drugs and discusses recent advances in the equipment and drugs that may be used to provide intra-oral anaesthesia.

Caesarean in mare by Marcenac incision under local anaesthesia

A nulliparous non-descript mare was presented with a complaint of dystocia. The mare was recumbent and physical examination revealed that the animal was in shock. There was no straining and foetal forelimbs were visible outside the vulva. The foetus was dead as there was no pedal reflex. Vaginal examination revealed anterior presentation with dorso-sacral position and rigid lateral head deviati...

Choice in local anaesthesia.

Arthroscopy under local anaesthesia.

Sixty patients underwent arthroscopy of the knee as day cases using a local anaesthetic technique. This provided satisfactory operating conditions and high patient acceptability.

Allergy to local anaesthesia.

A 35-year-old female had severe anaphylactoid reactions to pnlocaine and lignocaine on separate occasions Intradermal testing was positive to serial dilutions of both drugs and negative to bupivacaine, which was subsequently used uneventfully While intradermal testing for local anaesthetic allergy has limited application it would appear that when such te*ts are positive in high dilution they ma...