Systemic toxic effects of local anaesthetics

Publication date: Available online 13 March 2019Source: Anaesthesia &Intensive Care MedicineAuthor(s): Heather N. Sheppard, Ravi AnandampillaiAbstractLocal anaesthetics are widely used in the provision of local/regional anaesthesia and the management of acute and chronic pain. Their mechanism of action temporarily inhibits voltage gated sodium channels in neuronal plasma membranes. Local anaesthetic systemic toxicity (LAST) is a serious yet largely preventable complication that can occur by any of the multiple routes of administration. LAST predominantly affects the central nervous and cardiovascular systems. Awareness of LAST and vigilance during administration of local anaesthetics may help in early recognition and successful management of the toxicity. Intralipid emulsion (ILE) infusions have been successfully used in reversing local anaesthetic-induced cardiotoxicity. Since 2007 in the UK, ILE infusion has been incorporated into the safety guidelines for management of LAST.
Source: Anaesthesia and intensive care medicine - Category: Anesthesiology Source Type: research

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