RT Book, Section A1 Li, Yunping A2 Hess, Philip E. A2 Li, Yunping A2 Kowalczyk, John J. A2 Stiles, Justin K. SR Print(0) ID 1199674315 T1 Local Anesthetic Systemic Toxicity T2 Obstetric Anesthesia: Quick References & Practical Guides YR 2023 FD 2023 PB McGraw Hill PP New York, NY SN 9781264671465 LK accessanesthesiology.mhmedical.com/content.aspx?aid=1199674315 RD 2023/09/27 AB Incidence of local anesthetic systemic toxicity (LAST) after peripheral nerve blocks is higher than after epidural anesthesia.Ultrasound-guided peripheral nerve block is associated with lower incidence of LAST (Odds ratio 0.23).1Use of epinephrine in local anesthetics decreases its systemic absorption.In 1998, Dr. Guy Weinberg first observed that pretreatment or resuscitation with a lipid infusion shifts the dose-response curve to the right in a rat model of bupivacaine-induced asystole.2In 2006, the first case was reported of the successful use of a 20% lipid emulsion (intralipid) in a patient after LAST-induced prolong cardiac arrest.3Since then, lipid emulsion has been used successfully in lipophilic drug overdoses, such as tricyclic antidepressants, bupropion, verapamil, diltiazem, caffeine, and olanzapine.