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- Murat Karcioğlu, Kasim Tuzcu, Fatih Sefil, Işil Davarci, Suzan Aydin, Ali Sari, Akin Aydoğan, and Raif Özden.
- Turk J Med Sci. 2014 Jan 1;44(2):330-6.
AimCardiac toxicity due to the administration of local anesthetics may be fatal. In this study, we evaluated the efficacy of a 20% lipid solution combined with epinephrine in a levobupivacaine-induced cardiac arrest model.Materials And MethodsA total of 14 New Zealand rabbits were sedated and mechanically ventilated. Asystole was induced with intravenous levobupivacaine injection. The rabbits were randomized into groups receiving the same volume of either 0.9% saline (CR group) or a 20% lipid solution (LE group) along with a 100 μg/kg epinephrine bolus, which were administered immediately upon asystole. Standard advanced cardiac life support protocols were performed.ResultsFour subjects in the LE group as well as 3 subjects in the CR group had a spontaneous recovery (P = 0.592). In the 20th minute after arrest, 3 subjects in the LE group had maintained spontaneous circulation, while there was only 1 subject from the CR group with the same outcome.ConclusionWe found that adding a lipid solution to epinephrine for the resuscitation of rabbits that underwent levobupivacaine- induced cardiac arrest increased recovery rates of circulation and therefore the likelihood of survival. Further studies are needed to develop clinical therapies for the systemic toxicity of local anesthetics.
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