• S Kuze, T Naruse, Y Ito, and K Nakamaru.
• Department of Anesthesiology, Toyama Medical and Pharmaceutical University, Toyama, Japan.
• J Anesth. 1990 Apr 1; 4 (2): 155-61.

AbstractThe effects of the administration of Ringer's lactate (L) and Ringer's acetate (A) solution on blood biochemistry in human subjects operated for tympanoplasty under general anesthesia were investigated. And the feasibilities of the clinical use of Ringer's lactate (LD) and Ringer's acetate (AD) solution containing 5% glucose were also assessed. In all cases the rate of infusion was 500 ml for initial 20 min, and then 5 ml.hr(-1).kg(-1) B.W. for 3 hr and 10 min. There were significant increases in blood L- and D-lactate, pyruvate, and L-lactate/pyruvate ratio in L group. A significant increase in blood acetate but not lactate was found in A group. These metabolic changes were minimal and considered as clinically not significant. The urinary excretion of lactate, pyruvate, acetate and glucose were also negligible. In both LD and AD group, the higher blood concentrations of lactate, pyruvate, acetate and glucose were found than in L and A group. Urinary excretions of these metabolites were much higher in LD and AD group than in L and A group. So glucose containing Ringer's lactate or acetate solutions should be administered in appropriate amounts and rate not to induce clinically significant metabolic alterations.

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