Speed of onset of sensory block for elective extradural caesarean section: choice of agent and temperature of injectate

V. Clark, E. McGrady, C. Sugden, J. Dickson, G. McLeod

    Research output: Contribution to journalArticlepeer-review

    28 Citations (Scopus)

    Abstract

    We have studied the effects of choice of local anaesthetic and temperature of extradural injectate on speed of onset of sensory block for elective extradural Caesarean section in a double-blind trial in 120 women allocated randomly to one of four groups to receive either plain 0.5% bupivacaine or 2% lignocaine with 1:200000 adrenaline at either room temperature or 38°C. The onset time of lignocaine with adrenaline was shorter than that of bupivacaine regardless of temperature (P < 0.01). Warmed lignocaine produced the most rapid block overall (P < 0.025). The incidence of hypotension, ephedrine requirement, shivering, quality of analgesia and additional analgesic requirements were similar for all groups.

    Original languageEnglish
    Pages (from-to)221-223
    Number of pages3
    JournalBritish journal of anaesthesia
    Volume72
    Issue number2
    DOIs
    Publication statusPublished - Feb 1994

    Keywords

    • Anaesthesia: obstetric
    • Anaesthetics, local: lignocaine, bupivacaine Anaesthetic techniques: extradural

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