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Korean Journal of Anesthesiology 2004;46(6):708-713.
DOI: https://doi.org/10.4097/kjae.2004.46.6.708   
Pharmacodynamic Changes of Mivacurium in Liver Cirrhosis Model in Rabbits Using Carbon Tetrachloride Intoxication.
Young Duk Cha, Hong Sik Lee, Hwa Young Ki, Hye Jin Park, Chun Woo Yang, Yong Ho Kim, Kyo Sang Kim, Jung Uk Han
1Department of Anesthesiology and Pain Medicine, Inha University, Incheon, Korea.
2Department of Anesthesiology and Pain Medicine, Kwandong University, Goyang, Korea.
3Department of Anesthesiology and Pain Medicine, Hanyang University, Seoul, Korea.
A reproducible animal model of liver cirrhosis by administering multiple doses of carbon tetrachloride (CCl4) is highly desirable for appropriate metabolic and therapeutic studies. The current study was undertaken to evaluate the neuromuscular blockade of mivacurium in CCl4 induced liver cirrhosis in rabbits.
Cirrhosis was induced in rabbits by CCl4 treatment for 11 weeks. Rabbits were randomly assigned to two groups; control group: corn oil 0.5 ml/kg/2 days IM for 11 weeks; study group: CCl4 0.5 ml/kg/2 days mixed 1:1 with corn oil IM for 11 weeks. In the first study, the dose-response relations of mivacurium were studied in twenty rabbits during thiopental anesthesia. They received mivacurium 10, 20, and 30 microgram/kg in control group, and mivacurium 20, 30, and 40 microgram/kg in study group, respectively. In the second study, time course of mivacurium 0.18 mg/kg in twenty rabbits was evaluated in each groups. Three fragments of each liver lobe at the end of the experimental period were performed for the histological examination.
Eleven-weeks CCL4 treatment resulted in liver cirrhosis, decreased pseudocholinesterase to 1/6 of control level, and increased AST and ALT compared with controls. In the first study, There were significant differences between two groups. In the second study, There were significant differences between two groups.
It is suggested that mivacurium should be used with caution in patients with hepatic insufficiency and that, in such patients, monitoring of neuromuscular function is desirable.
Key Words: rabbits; liver cirrhosis; mivacurium; pharmacodynamics


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