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논문 기본 정보

자료유형
학술저널
저자정보
이수희 (경상국립대학교) 손주태 (경상국립대학교)
저널정보
대한마취통증의학회(구 대한마취과학회) Korean Journal of Anesthesiology Korean Journal of Anesthesiology Vol.76 No.3
발행연도
2023.6
수록면
171 - 182 (12page)
DOI
10.4097/kja.23031

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초록· 키워드

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Currently, lipid emulsion (LE) is widely used to treat local anesthetic systemic toxicity (LAST). LE also ameliorates intractable cardiovascular collapse caused by lipid-soluble non-local anesthetic drug toxicity. This review aims to provide the underlying mechanism of LE resuscitation in drug toxicity (including LAST) and a detailed description of LE treatment and to discuss further research directions. We searched for relevant articles using the following keywords: “local anesthetic systemic toxicity or LAST or toxicity or intoxication or poisoning” and “Intralipid or lipid emulsion”. The underlying mechanisms of LE treatment can be classified into indirect and direct effects. One indirect effect known as the lipid shuttle is a commonly accepted mechanism of LE treatment. The lipid shuttle involves the absorption of highly lipid-soluble drugs (e.g., bupivacaine) from the heart and brain through the lipid phase, which are then delivered to the muscle, adipose tissue, and liver for storage and detoxification. The direct effects include inotropic effects, fatty acid supply, attenuation of mitochondrial dysfunction, glycogen synthase kinase-3β phosphorylation, and inhibition of nitric oxide. These mechanisms appear to act synergistically to treat drug toxicity. The recommended protocol for LE treatment of LAST is as follows: a bolus administration of 20% LE at 1.5 ml/kg over 2–3 min followed by 20% LE at 0.25 ml/kg/min. LAST most commonly occurs after intravenous administration of local anesthetics. However, non-local anesthetic drugs that cause drug toxicity are orally administered. Further studies are needed to determine the optimal dosing schedule of LE treatment for non-local anesthetic drug toxicity.

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