ABSTRACT
Objective To observe the effect of sodium acetate Ringer solution on serum levels of electrolytes, blood glucose (Glu) and lactic acid (Lac) in peri-operational stage of children undergoing neurosurgery. Methods Forty cases of children prepared to undergo neurosurgery admitted into Hunan Children's Hospital from December 2018 to April 2019 were enrolled, and according to the criteria of American Society of Anesthesiologists (ASA), they were classified into Ⅰ-Ⅱ grade. They were divided into a sodium acetate Ringer solution group and a sodium lactate Ringer solution group by random number table method, 20 cases in each group. Sodium acetate Ringer solution group was given the sodium acetate Ringer solution; sodium lactate Ringer solution group was given the sodium lactate Ringer solution, and both groups used intravenous infusion of their own respective solution at a rate of 10 mL·kg-1·h-1. Arterial blood gas detections were measured after anesthesia induction (T1), 1 hour after administration (T2), 2 hours after administration (T3) and at the end of surgery (T4); the changes in serum levels of electrolyte concentrations, blood Glu and Lac were observed in the patients of two groups. Results With the prolonged operation time, the levels of Glu and Lac in the two groups showed an increasing trend, compared with the levels at T1 and T2 , the levels were increased at T3 and T4 [the sodium lactate ringer solution group: Glu (mmol/L) were 5.85±1.02, 6.95±1.21 vs. 5.28±0.72, 5.20±0.62, and Lac (mmol/L) were 1.53±0.74, 1.91±1.41 vs. 1.23±0.71, 1.38±0.69; sodium acetate ringer solution group: Glu (mmol/L) was 5.44±0.86, 5.85±1.12 vs. 5.05±0.85, 5.14±0.74, Lac (mmol/L) were 1.58±1.31, 1.61±1.23 vs. 1.14±0.65, 1.28±0.95, all P < 0.05], the Lac and Glu levels at T4 in sodium acetate Ringer solution group were significantly lower than those in sodium lactate Ringer solution group (both P < 0.05). There were no statistically significant differences in pH value, Na+, K+ and residual base (BE) levels between the two groups at different time points (all P > 0.05). Conclusion Sodium acetate Ringer solution used in pediatric neurosurgery for more than 2 hours can reduce the blood lactic acid level without rising blood glucoselevel. Therefore, it is more suitable for infusion during pediatric neurosurgery.
ABSTRACT
Objective To investigate the effects of rapid colloid and crystalloid infusions on the plasma concentration of propofol( Cp) during target-controlled infusion.Methods Thirty-six patients were randomly assigned to three interventions(12 patients per group).At least 30 min after the start of propofol infusion,the hydroxyethyl starch solution group(HES)received HES of 24 mL/(kg· h),on the former 20 min,the sodium acetate Ringer’s injection group(AR)received AR of 24 mL/(kg· h),while HES group and AR group of later 20 min and the control group of whole course received AR of 2 mL/(kg· h).The plasma concentrations of propofol were recorded per 2 min and a half.The cardiac outputting,blood volume and clearance of indocyanine green were measured by pulsed dye density analyzer,the effective hepatic blood flow( EHBF) were obtained.Results The varying of Cp with time showed a significant treatment factor(F[2,33] =14.14,P<0.001)and time factor(F[16,528] =10.37,P<0.001)and interaction between the above factors(F[32,528] =2.82,P <0.001) by ANOVA for repeated measurement;the difference of Cp among each group,Cp in HES group was significantly lower than AR group(5-40 min)or control group(10-40 min),with significant difference(P<0.05).The varying of EHBF with time showed a significant treatment factor(F[2,28] =3.68,P=0.038)and time factor(F[2,56] =5.37,P=0.007)and interaction between the above factors(F [4,56] =3.67,P=0.010);while there was no significant difference in other groups.Conclusion Rapid HES infusion increases the effective hepatic blood flow,resulting in a decrease of propofol concentration during target-controlled infusion.Rapid HES infusion should be used cautiously as it may decrease the depth of anesthesia.