Albumin bolus administration versus continuous infusion in critically ill hypoalbuminemic pediatric patients

被引:1
|
作者
Greissman, A [1 ]
Silver, P [1 ]
Nimkoff, L [1 ]
Sagy, M [1 ]
机构
[1] LONG ISL JEWISH MED CTR,SCHNEIDER CHILDRENS HOSP,DIV PEDIAT CRIT CARE MED,NEW HYDE PK,NY 11042
关键词
hypoalbuminemia; albumin administration; continuous infusion; bolus infusion; pediatric patients;
D O I
暂无
中图分类号
R4 [临床医学];
学科分类号
1002 ; 100602 ;
摘要
Objective: To test the hypothesis that the rate of degradation of exogenously administered albumin is faster with bolus administration than with continuous infusion and thus that a bolus administration is less efficacious in restoring blood albumin concentration (BAG) in the hypoalbuminemic critically ill pediatric patient. Design: A prospective, controlled study of two groups of patients. Setting: Pediatric intensive care unit (PICU) of a children's hospital. Patients: 37 critically ill hypoalbuminemic patients (BAG less than or equal to 2.8 g/dl), in whom no overt protein-losing disease was identified, were divided into two treatment groups and included in a 60-h study. Interventions: 18 patients were given an i.v. bolus of 1 g/kg of 25% albumin over 4 h. This treatment was repeated after 24 and 48 h. Nineteen other patients were given the same dose of 1 g/kg of 25% albumin as a continuous 24-h infusion throughout the 60-h study period. BAC along with sodium, potassium, and total and ionized calcium were measured in the serum of blood samples obtained at predetermined intervals. Measurements and main results: A 4 h bolus of albumin resulted in an acute rise in BAG, which declined to baseline within 24 h. A continuous infusion resulted in a steady rise in BAC with 24-h levels significantly higher than baseline. The percent change in mean BAC from baseline, calculated at 12-h intervals during the 60-h study period, showed a steady increase in the continuous infusion group with a 34% increase after the first 24 h. In contrast, the 4-h bolus method resulted in major fluctuations in the BAC values with only a 14% increase (p < 0.05) after 24 h. Albumin's volume of distribution, half-life and elimination constant, calculated based on blood albumin values during the first 24 h after the bolus administration, were 0.12 +/- 0.03 l/kg, 4.6 +/- 1.8 h and 0.17 +/- 0.06 h(-1), respectively. This half-life did not apply to the continuous infusion group as a steady state was not achieved after 30 h (6 half-lives), and BAC continued to rise throughout the 60-h study period. No significant changes in blood electrolytes were observed with either method. Conclusions: The half-life of exogenous albumin in the critically ill hypoalbuminemic pediatric patient is short if given as a bolus. Continuous infusion therapy appears to be more efficacious increasing BAC over time, as the half-life with this method appears to be longer.
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收藏
页码:495 / 499
页数:5
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