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A review of local anesthetic cardiotoxicity and treatment with lipid emulsion

Authors Bourne E, Wright C, Royse C

Published 26 February 2010 Volume 2010:3 Pages 11—19


Review by Single anonymous peer review

Peer reviewer comments 3

Emma Bourne1, Christine Wright1, Colin Royse2

1Cardiovascular Therapeutics Unit, Department of Pharmacology, University of Melbourne; 2Anesthesia and Pain Management Unit, Department of Pharmacology, University of Melbourne

Abstract: Cardiovascular collapse from accidental local anesthetic toxicity is a rare but catastrophic complication of regional anesthesia. The long-acting amide local anesthetics bupivacaine, levobupivacaine and ropivacaine have differential cardiac toxicity, but all are capable of causing death with accidental overdose. In recent times, the chance discovery that lipid emulsion may improve the chance of successful resuscitation has lead to recommendations that it should be available in every location where regional anesthesia is performed. This review will outline the mechanisms of local anesthetic toxicity and the rationale for lipid emulsion therapy.

Keywords: local anesthetic, cardiac toxicity, lipid emulsion, cardiovascular collapse

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